EXELON CORP
U-1, 2000-03-16
ELECTRIC SERVICES
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<PAGE>

   As filed with the Securities and Exchange Commission on March 16, 2000
                                                              File No. _________


                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
                              ___________________


                       FORM U-1 APPLICATION-DECLARATION
                                     UNDER
                THE PUBLIC UTILITY HOLDING COMPANY ACT OF 1935
                              ___________________

                              Exelon Corporation
                           10 South Dearborn Street
                                 37/th/ Floor
                               Chicago, IL 60603

  (Name of company filing this statement and address of principal executive
                                   offices)

<TABLE>
<S>                                                 <C>
- -------------------------------------------------------------------------------------------------------
                 John W. Rowe                                   Corbin A. McNeill, Jr.
Chairman, President and Chief Executive Officer     Chairman, President and Chief Executive Officer
              Unicom Corporation                                  PECO Energy Company
           10 South Dearborn Street                               2301 Market Street
                 37/th/ Floor                                        P.O. Box 8699
               Chicago, IL 60603                                Philadelphia, PA 19101
</TABLE>

                              ___________________
     The Commission is requested to send copies of all notices, orders and
      communications in connection with this Application-Declaration to:

<TABLE>
     <S>                                     <C>
     Pamela B. Strobel                       James W. Durham
     Executive Vice President and General    Senior Vice President and General Counsel
     Counsel                                 PECO Energy Company
     Unicom Corporation                      2301 Market Street
     10 South Dearborn Street                P.O. Box 8699
     37/th/ Floor                            Philadelphia, PA 19101
     Chicago, IL 60603

     William J. Harmon                       Kevin P. Gallen
     Jones, Day, Reavis & Pogue              Morgan, Lewis & Bockius LLP
     77 West Wacker                          1800 M Street, N.W.
     Suite 3500                              Washington, DC 20036-5869
     Chicago, IL 60601
</TABLE>
<PAGE>

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<S>                                                                                                        <C>
   Executive Summary......................................................................................  1
Item. 1. Description of Proposed Transaction..............................................................  3
   A. Introduction -- Benefits of the Merger..............................................................  3
   B. Overview of the Transaction.........................................................................  3
   C. Description of the Parties to the Merger............................................................  5
     1. Exelon Corporation................................................................................  5
     2. Unicom and its Subsidiaries.......................................................................  5
     3. PECO and its Subsidiaries.........................................................................  7
   D. Exelon Services..................................................................................... 12
   E. Description of the Merger........................................................................... 12
Item. 2. Fees, Commissions and Expenses................................................................... 14
Item. 3. Applicable Statutory Provisions.................................................................. 14
   A. Application of the Act in Light of the Evolving "State of the Art" of the Electric Utility
   Industry............................................................................................... 15
   B. Section by Section Analysis......................................................................... 23
     1. Section 9(a)(2) -- Acquisition of Utility Stock................................................... 23
     2. Section 10(b) -- Commission to Approve if Three Requirements Met.................................. 24
        (a) Section 10(b)(1) -- Interlocking Relations/Concentration of Control........................... 24
        (b) Section 10(b)(2) -- Merger Consideration and Fees............................................. 29
        (c) Section 10(b)(3) -- Complicated Capital Structure; No Detriment to Protected Interests........ 31
     3. Section 10(c) -- Sections 8 and 11; Integration................................................... 33
        (a) Section 10(c)(1) -- Sections 8 and 11......................................................... 34
         (i)    The Merger will be lawful under Section 8................................................. 34
         (ii)   The Merger Is Not Detrimental to Carrying Out Provisions of Section 11.................... 34
</TABLE>

                                       i
<PAGE>

<TABLE>
<S>                                                                                                        <C>
            (A) The Utility Systems Created by the Merger................................................. 34
            (B) Statutory Standard -- Integration of Electric Operations In Today's Environment........... 35
         (iii)  Exelon Will Meet All Four Parts of the Integration Requirement of the Act................. 36
            (A) Interconnection........................................................................... 37
            (B) The Contract Path......................................................................... 42
            (C) Coordination.............................................................................. 43
            (D) Single Area or Region..................................................................... 47
            (E) Size...................................................................................... 51
            (F) Conclusion -- Exelon Electric System will be Integrated................................... 53
         (iv)   Retention of Exelon Gas System............................................................ 55
            (A) Loss of economies if operated as an independent system.................................... 56
            (B) Same State or Adjoining States............................................................ 60
            (C) Size --Localized Management; Efficient Operation; Effective Regulation.................... 60
         (v)    Retention of Other Businesses............................................................. 61
        (b) Section 10 (c)(2) -- Economies and Efficiencies............................................... 63
        (c) Section 10(f) -- Compliance with State Law.................................................... 66
   C. Intra-system Transactions........................................................................... 67
     1. Exelon Services, Inc.............................................................................. 67
     2. Services, Goods, and Assets Involving the Utility Operating Companies............................. 69
     3. Non-utility Subsidiary Transactions............................................................... 70
     4. Existing and Anticipated Affiliate Arrangements and Requests for Exemption........................ 71
Item. 4. Regulatory Approvals............................................................................. 73
   A. Antitrust........................................................................................... 74
   B. Federal Power Act................................................................................... 74
   C. Atomic Energy Act................................................................................... 74
   D. State Public Utility Regulation..................................................................... 75
   E. Other............................................................................................... 75
Item. 5. Procedure........................................................................................ 75
Item. 6. Exhibits and Financial Statements................................................................ 75
</TABLE>

                                      ii
<PAGE>

<TABLE>
<S>                                                                                                        <C>
   A. Exhibits............................................................................................ 75
   B. Financial Statements................................................................................ 79
Item. 7. Information as to Environmental Effects.......................................................... 79
</TABLE>

                                      iii
<PAGE>

                               Executive Summary


     This Application-Declaration seeks approvals under the Public Utility
Holding Company Act of 1935 (the "Act") relating to the proposed acquisition by
Exelon Corporation ("Exelon") of all the common stock of:

     .  Commonwealth Edison Company ("ComEd"), an electric utility company, and
        currently a subsidiary of Unicom Corporation ("Unicom");

     .  PECO Energy Company ("PECO"), an electric and gas utility company;

     .  one or more corporations (collectively, "Genco"), to which the
        generating assets of ComEd and PECO will be transferred, each of which
        will be an electric utility company; and, indirectly,

     .  the public utility subsidiaries of ComEd and PECO.

     Following the transaction (referred to as the "Merger"), Exelon will
register as a holding company under the Act. Accordingly, Exelon must establish,
among other things, that combining ComEd and PECO will result in a "single
integrated public-utility system." To satisfy this "integration" test, Exelon
must show that it is "interconnected" in a way that will allow it to conduct
coordinated utility operations economically in a "single area or region." The
combined electric utility systems of ComEd and PECO, including particularly the
Genco subsidiary, will clearly meet the integration and all other requirements
of the Act.

     All of Exelon's generating capacity, nuclear and other, will be owned or
controlled by a single entity -- Genco. Genco will coordinate, through the
interconnected system, the efficient use of the generation formerly held by
ComEd and PECO for the benefit of the Exelon system. Genco will supply power to
its affiliates and to non-affiliated customers. Exelon will be interconnected
through the transmission facilities of ComEd and PECO and the extensive,
available interstate open access transmission. Exelon will have the legal right
under Federal Energy Regulatory Commission ("FERC") mandated Open Access
Transmission Tariffs (OATTs) to move power economically to customers as needed
and in amounts sufficient to meet -- under normal conditions -- its operating
needs throughout the Exelon system. Exelon believes the use of a flexible array
of firm and non-firm transmission reservations available through the OATTs is
sufficient under the Act, and is the best and most economical way, to satisfy
the interconnection requirement necessary to establish integration. Finally,
Exelon Services Company will be formed to oversee all centralized corporate and
administrative services.

     Given the operating and regulatory structure of today's industry, Exelon
will operate within a single area or region within the meaning of the Act. ComEd
and PECO have an extensive five-year history of successful power exchanges with
each other. In addition, they both buy and sell power in the same markets. The
ability to transfer power economically, taking into account transmission cost,
demonstrates that ComEd and PECO are in the same area or region. Further,
Exelon's distribution areas -- surrounding Chicago, Illinois and Philadelphia,
Pennsylvania -- are homogeneous and have similar operating characteristics.
Illinois and Pennsylvania have enacted

                                       1
<PAGE>

customer choice utility restructuring legislation. Finally, Exelon will in fact
operate all of its utility facilities as a single, coordinated system.

     Although the United States is now largely interconnected electrically, only
                                                              ------------
those utilities, such as Exelon, which can and will operate their separate
utilities economically and in a coordinated manner within the meaning of the
          ------------------------------------------------------------------
Act, can be considered to be in the same area or region. Exelon, with corporate
- ----
headquarters in Chicago, will coordinate utility operations functions with
facilities in Chicago and Philadelphia. ComEd and PECO will maintain the
benefits of localized management through local offices throughout their service
areas. Exelon's utility subsidiaries will remain fully subject to applicable
State and Federal public utility regulation, which will not be adversely
affected by the Merger.  Thus, this is not a case involving "scattered"
properties or the impairment of local management, efficient operation or
effective regulation.

       This Application-Declaration will show that the Merger fits within
existing Commission precedent and is made possible, applying the standards of
the Act, by reason of significant legislative, regulatory and technological
changes that have occurred in the electric utility industry in recent years.
Approving the Merger as requested will not result in any of the harms Congress
sought to prevent by adopting the Act and will be consistent with the
requirements of the Act.

                                       2
<PAGE>

     The foregoing executive summary focused on the integration requirement --
the keystone of the Act. This Application-Declaration will also demonstrate that
the other requirements of the Act are met in this case as well./1/ In order to
permit timely consummation of the Merger and the realization of the substantial
benefits it is expected to produce, the Applicant requests that the Commission's
review of this Application-Declaration commence and proceed as expeditiously as
practicable.

Item. 1. Description of Proposed Transaction

  A. Introduction -- Benefits of the Merger

     The Merger is in response to changes in the utility industry described in
this Application-Declaration. Unicom and PECO believe that the Merger will join
two well-managed companies of similar market capitalization, operating in States
that have adopted comprehensive customer choice utility restructuring laws, and
that share a commitment to developing an energy company responsive to increased
competition and other changes in the industry. The Merger will provide
substantial strategic and financial benefits to PECO Energy's and Unicom's
shareholders, employees and customers. The Merger will significantly improve the
companies' competitive positions and create an enhanced platform for growth for
all segments of their businesses. These benefits of the Merger expected to
include:

     .  Expanded and Coordinated Generation Capacity

     .  Integrated Power Marketing and Trading Business

     .  Broadened, More Efficient Distribution System

     .  Foundation for Future Growth

     .  Cost Savings

  B. Overview of the Transaction

     The Agreement and Plan of Exchange and Merger, dated September 22, 1999
(the "Original Merger Agreement"), as amended and restated January 7, 2000 (the
"Merger Agreement"), provides for a "merger-of-equals" business combination of
Unicom and PECO. The transaction will be accomplished through a mandatory share
exchange whereby Exelon, a Pennsylvania corporation, will exchange its common
stock for the outstanding common stock of PECO (the "First Step Exchange"),
followed by the merger of Unicom Corporation ("Unicom"), the current parent of
ComEd, with and into Exelon, with Exelon as the surviving corporation (the
"Second Step Merger"). The First Step Exchange and the Second Step Merger are
referred to collectively as the "Merger".

______________
/1/  Prior to completion of the Merger, Exelon expects to file one or more
     additional applications-declarations under the Act with respect to ongoing
     activities (including financing activities) and other matters pertaining to
     Exelon after the Merger.

                                       3
<PAGE>

     After the Merger, Unicom and PECO's non-utility subsidiaries will be
realigned. At or about the time of the Merger, ComEd and PECO will transfer
their generating facilities to Genco (the "Restructurings").  As part of the
Merger and Restructurings, one or more service companies and/or operating
companies will be formed and the other corporate organizational changes
described herein will be made.

     Pursuant to the Merger Agreement, each outstanding share of Unicom common
stock will be exchanged for 0.875 shares of Exelon common stock and $3.00 in
cash and each outstanding share of PECO common stock will be exchanged for one
share of Exelon common stock. Upon completion of the Merger and the
Restructurings, Exelon will have the following direct or indirect public-utility
subsidiary companies: ComEd, Commonwealth Edison Company of Indiana (the
"Indiana Company"), PECO and Genco. Exelon will also hold, directly or
indirectly, PECO's existing electric utility subsidiaries that hold the
Conowingo hydroelectric project. In addition, one or more subsidiaries of Exelon
will act as service companies for the Exelon system under Section 13 of the
Act./2/ Finally, Exelon will continue to own all of Unicom's existing non-
utility subsidiaries and will acquire, directly or indirectly, all of the
outstanding capital stock of the non-utility subsidiaries of PECO and certain of
the operating divisions of PECO engaged in nonregulated businesses. A copy of
the Merger Agreement is incorporated by reference as Exhibit B-1. The Merger
transaction will be submitted to the shareholders of Unicom and PECO at meetings
to be held in May 2000.

     Various aspects of the Merger and the transactions relating thereto have
been submitted for review and/or approval by: (i) the Pennsylvania Public
Utility Commission (the "Pennsylvania Commission"), (ii) the Illinois Commerce
Commission (the "Illinois Commission"), (iii) the FERC and (iv) the Nuclear
Regulatory Commission (the "NRC"). Further, the Merger cannot proceed until the
waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended (the "HSR Act"), has expired or been terminated by the regulators.
Approval will also be necessary from the Federal Communications Commission (the
"FCC") in connection with various licenses. Apart from the approval of the
Commission under the Act, the foregoing approvals are the only major
governmental approvals required for the Merger.

     The Restructurings will also require regulatory approval by the
Pennsylvania Commission, the Illinois Commission, FERC and the NRC as well as
private letter rulings from the Internal Revenue Service. The completion of the
Merger is not conditioned on the completion of the Restructurings. The approvals
sought herein assume that the Restructurings will be consummated concurrently
with the Merger and accordingly, the corporate structure

_____________
/2/  The integration and transition teams of Unicom and PECO are developing the
     final organizational structure for Exelon. The companies may use one or
     more operating companies to perform some utility functions. If an "Opco"
     operates facilities that are electric or gas facilities within the meaning
     of Section 2(a)(3) or 2(a)(4) of the Act, it will also constitute a public
     utility company, in which case such approvals as would be required for
     Exelon to acquire such Opco are also sought herein. All references to the
     utility subsidiaries of Exelon in this Application-Declaration shall be
     deemed to include any "public utility" Opco. Conversely, these "Opcos" may
     be more properly characterized as service companies. All references to
     service companies herein include any "service company" Opcos.

                                       4
<PAGE>

described herein to be in effect for Exelon following the Merger assumes that
the Restructurings and the realignment of non-utility subsidaries have also been
completed./3/

  C. Description of the Parties to the Merger

     1.  Exelon Corporation

     Exelon Corporation, a Pennsylvania corporation, currently a subsidiary of
PECO, has no assets and has conducted no business operations to date. Pursuant
to the Merger, Exelon will become the parent holding company of ComEd, PECO,
Genco and the other subsidiaries described herein. Exelon will have its
principal executive office in Chicago, Illinois.

     2.  Unicom and its Subsidiaries

     Unicom, incorporated in January 1994, is the parent of its principal
subsidiary, ComEd, a regulated electric utility, and Unicom Enterprises, an
unregulated subsidiary engaged, through its subsidiaries, in energy service
activities.  Unicom is a public utility holding company exempt from registration
pursuant to Commission order under Section 3(a)(1) of the Act./4/ Unicom's
principal executive offices are located at 10 South Dearborn Street, 37/th/
Floor, Chicago, Illinois 60603.

     ComEd's Utility Business

     ComEd is an Illinois corporation with its principal office in Chicago,
Illinois. ComEd is a majority-owned subsidiary (greater than 99%) of Unicom./5/
ComEd is engaged in generating, transmitting and distributing electric energy to
the public in northern Illinois. In 1998 and 1999 ComEd sold all of its fossil-
fired generating capacity. ComEd retains 10 nuclear generating units totaling
9,550 MW of generating capacity located at five stations in Illinois. ComEd
serves approximately 3.4 million retail electric customers in an 11,300 square
mile service area including the City of Chicago in Illinois.

     ComEd has 5,300 miles of transmission facilities and has an open access
tariff on file with FERC. ComEd is a participant in the Mid-America
Interconnected Network ("MAIN") as well as the Midwest Independent System
Operator, Inc. ("MISO"). MISO has been approved by

________________
/3/  If it is not feasible for corporate, tax or regulatory reasons to transfer
     all or certain of the ComEd or PECO generating assets to Genco, the
     centralized coordination of all generating activities will occur in Genco,
     whether or not Genco is the legal owner of generating facilities. If it
     appears that the Restructurings will not take place coincident with the
     Merger, Applicant will amend this Application-Declaration to reflect its
     revised plans.

/4/  Unicom Corporation, Holding Co. Act Release No. 35-26090 (July 22, 1994).
     ------------------

/5/  At December 31, 1999, 4,859 of the 231,973,810 shares of common stock of
     ComEd were not owned by Unicom but were in the hands of the public as a
     result of exercises of warrants or convertible preferred stock into ComEd
     common stock not followed by an exchange of such stock for Unicom common
     stock. The rights under the ComEd warrants and convertible preferred stock
     to acquire or convert into ComEd common stock will not be changed by the
     Merger. Following the Merger, Exelon will offer to exchange any such ComEd
     common stock issued on exercise of such warrants or convertible preferred
     stock for Exelon common stock.

                                       5
<PAGE>

FERC to act as an regional transmission operator for its member utilities in the
Midwest and adjacent areas./6/ On December 13, 1999, ComEd and other
unaffiliated transmission providers in the Midwest submitted to FERC a joint
petition for a declaratory order regarding a proposed plan or template for an
independent transmission company ("ITC") that would operate under the oversight
of the MISO./7/ ComEd plans to transfer control of its transmission assets to an
ITC.

     Maps of the electric service area and transmission system of ComEd are
filed as Exhibit E-1.

     ComEd is an electric utility and a holding company exempt from registration
pursuant to a Commission order under Section 3(a)(1) of the Act pursuant to
order and pursuant to Rule 2./8/ ComEd is subject to regulation as a public
utility under the Illinois Public Utilities Act ("Illinois PUA") as to retail
electric rates and charges, issuance of most of its securities, service and
facilities, classification of accounts, transactions with affiliated interests,
as defined in the Illinois PUA, and other matters. In addition, the Illinois
Commission in certain of its rate orders has exercised jurisdiction over ComEd's
environmental control program. ComEd is also subject to regulation by FERC
pursuant to the Federal Power Act with respect to the classification of
accounts, rates for wholesale sales of electricity, the interstate transmission
of electric power and energy, interconnection agreements and acquisitions and
sales of certain utility properties. ComEd is also subject to the jurisdiction
of the NRC with respect to the operation of its nuclear generating stations.

     The Illinois legislature has enacted a retail access program in Illinois.
Since October 1, 1999, (a) customers with peak loads of four MW or greater, (b)
a percentage of commercial customers with ten or more locations with peak load
of 9.5 MW or greater, and (c) a percentage of other non-residential customers
have been eligible via direct access to choose their electricity supply. The
balance of ComEd's non-residential customers will become eligible for direct
access by December 31, 2000, and all of its residential customers by May 1,
2002. ComEd will continue to provide delivery service to all customers. As a
part of the Illinois retail access program, ComEd's retail rates are capped
through 2005.

     Unicom's Other Businesses

     Unicom, directly or indirectly, owns all the outstanding common stock of
the non-utility subsidiary companies identified and described in Exhibit I-1
hereto. These companies are organized under Unicom Enterprises, Inc. or Unicom.
In addition, ComEd has the subsidiaries identified on that Exhibit which relate
to its utility operations.

     As described in detail herein, the non-utility operations of Unicom will
qualify as additional businesses of Exelon under the Act pursuant to Rule 58 or
otherwise. Exelon requests that the investment in the Unicom Enterprises
activities which it will acquire at consummation of

________________
/6/  84 FERC (P) 61,231, order on reconsideration, 85 FERC (P) 61,250, order on
     reh'g, 85 FERC (P) 61,372 (1998).

/7/  See Docket No. EL00-25-000.  FERC gave preliminary approval to the ITC
     proposal on February 24, 2000.

/8/  Commonwealth Edison Co., Holding Co. Act Release No. 35-26090 (July 22,
     ----------------------
     1994)

                                       6
<PAGE>

the merger be disregarded for purposes of calculating the dollar limitation upon
investment in energy-related companies under Rule 58./9/


     Unicom's Financial Position

     The authorized capital stock of Unicom consists of 400,000,000 shares of
common stock. As of the close of business on December 31, 1999, 217,835,570
shares of Unicom common stock were issued and outstanding./10/ The Unicom common
stock is listed on the New York Stock Exchange, Inc. ("NYSE"), the Chicago Stock
Exchange and the Pacific Stock Exchange.

     The consolidated assets of Unicom, as of December 31, 1999, were
approximately $23.4 billion, representing $12.1 billion in net electric utility
property, plant and equipment; $521.3 million in non-utility subsidiary
property, plant and equipment; and $10.8 billion in other corporate assets. For
the year ended December 31, 1999, Unicom had electric utility revenues of $6.8
billion.

     Unicom and ComEd are financially strong companies. Following the
announcement of the revised Merger Agreement on January 7, 2000, Duff & Phelps
Credit Rating Co. reaffirmed its ratings of Unicom and ComEd. At that date,
Unicom's implied senior unsecured debt was rated "BBB;" ComEd's first mortgage
bonds were rated "A-" and its unsecured debt was rated "BBB+."

     Further Information

     More detailed information concerning Unicom and its subsidiaries, including
the utility assets and operations of ComEd, is contained in the Unicom and ComEd
combined Annual Report on Form 10-K and the Quarterly Reports on Form 10-Q,
which are filed as exhibits hereto and incorporated by reference.

     3.  PECO and its Subsidiaries.

     PECO is an investor-owned public utility company that was incorporated in
Pennsylvania in 1929 as the successor to various companies dating back as early
as 1881. PECO is made up of several unincorporated divisions, including PECO
Energy Distribution, PECO Nuclear, the Power Team and the Power Generation
Group. PECO provides electric and gas utility service in southeastern
Pennsylvania. PECO owns and operates a variety of nuclear and non-nuclear power
generation plants, and also participates in the national wholesale electricity
market and in retail access programs. PECO's principal executive offices are
located at 2301 Market Street, P.O. Box 8699, Philadelphia, Pennsylvania 19101.

______________
/9/  See SCANA Corporation, Holding Company Act Release No. 35-27133 (Feb. 9,
     --- -----------------
     2000); New Century Energies, Inc., Holding Company Act Release No. 35-26748
            --------------------------
     (August 1, 1997). Conectiv, Inc., Holding Company Release Act No. 35-26832
                       --------------
     (February 25, 1998); Ameren Corp., Holding Company Release Act No. 35-26809
                          ------------
     (December 30, 1997).

/10/ Under the Merger Agreement, Unicom has agreed to repurchase $1.0 billion of
     its common stock prior to the merger. At January 31, 2000 Unicom had
     acquired about 731,400 shares. This amount is in addition to the 26.3
     million shares of common stock purchased in January, 2000 upon settlement
     of certain forward purchase contracts. Unicom outstanding common shares at
     January 31, 2000 was 190,916,288.

                                       7
<PAGE>

     PECO's Utility Business

     PECO provides retail electric service to customers in the City of
Philadelphia and five nearby counties. PECO serves approximately 1.5 million
electric retail customers in its 1,972 square-mile service territory. PECO also
owns interests in three nuclear generating facilities (six units), seven fossil
fuel facilities (including coal-fired, oil-fired, and combination gas-oil
units), a pumped-storage hydro facility, a landfill gas facility, and thirty-
three distributed generation units that are primarily gas-fired. Through
subsidiaries, PECO owns and operates the 514 MW Conowingo Hydroelectric Project
("Conowingo Project"), located on the Susquehanna River in Pennsylvania and
Maryland. These generation facilities have an estimated aggregate net installed
electric generating capacity (summer rating) of 9,262 MW./11/

     PECO owns transmission facilities located in the Pennsylvania-New Jersey-
Maryland ("PJM") control area. The PJM independent system operator offers
transmission service over those PECO transmission facilities and the
transmission facilities of other PJM members under the PJM open access
transmission tariff on file with FERC./12/ PECO also has an open access
transmission tariff on file with FERC./13/

     PECO also provides natural gas distribution service to over 400,000 retail
customers in a 1,475 square-mile area of southeastern Pennsylvania adjacent to
Philadelphia.  The electric and gas service territories substantially overlap,
with the major exception of the City of Philadelphia. In 1999, 8.8% of PECO's
operating revenues and 6.6% of its operating income were from its gas
operations.  Maps of the electric and gas service areas of PECO are filed as
Exhibit E-2.

     Regulation as a Utility

     PECO is currently a public utility holding company exempt from the
provisions of the Act, except Section 9(a)(2), by reason of the annual exemption
statements filed by it pursuant to Rule 2 of the Commission's rules and
regulations. PECO currently has three wholly owned subsidiaries that are public
utility companies within the meaning of the Act: PECO Energy Power Company
("PEPCO"), Susquehanna Power Company ("SPCO") and Susquehanna Electric Company
("SECO"). The Conowingo Project is owned and operated through PEPCO, SPCO and
SECO./14/

____________
/11/ PECO is in the process of acquiring additional ownership interests in the
     Peach Bottom Atomic Power Station which would increase its ownership share
     to 50%, an additional 80 MW.

/12/ Pennsylvania-New Jersey-Maryland Interconnection, et al., 81 FERC (P)
     --------------------------------------------------------
     61,257 (1997), reh'g pending.
                    -------------

/13/ PECO Energy Co., 74 FERC (P) 61,336 (1996).
     ---------------

/14/ PEPCO, a registered holding company, has one wholly owned subsidiary, SPCO,
     a public utility company within the meaning of the Act and an indirect
     subsidiary of PECO. PEPCO owns the portion of the Conowingo Project located
     in Pennsylvania and SPCO owns the portion located in Maryland. The
     Conowingo Project is leased to and operated by SECO, which sells the
     Project's output to PECO. In addition to the companies identified above,
     SPCO also owns The Proprietors of the Susquehanna Canal, an inactive entity
     incorporated in 1783 and acquired in connection with the development of the
     Conowingo Project. See Holding Company Act Release No. 35-6718, June 18,
     1946; Holding Company Act Release No. 35-16636, March 12, 1970; Holding
     Company Act Release No. 35-14782, January 2, 1963; Susquehanna Power Co.,
                                                        ---------------------
     19 FERC (P) 61,

                                       8
<PAGE>

     PECO is subject to regulation by the Pennsylvania Commission with respect
to retail rates, accounting, service standards, service territory, issuance of
securities, certification of generation and transmission projects, and various
other matters. PECO is also subject to the jurisdiction of FERC under the
Federal Power Act for some phases of its business, including regulation of its
rates relating to wholesale sales of energy and interstate transmission,
licensing its hydroelectric stations, accounting, and certain other matters.
PECO is also subject to the jurisdiction of the NRC with respect to the
ownership and operation of its nuclear generating stations.

     The Pennsylvania Electricity Generation Customer Choice and Competition Act
(the "Competition Act"), enacted in 1996, mandated the restructuring of the
electric utility industry in Pennsylvania, including retail competition for
generation beginning in 1999. The Competition Act unbundled electric service
into separate generation, transmission and distribution services with open
retail competition for generation. Electric distribution service remains
regulated by the Pennsylvania Commission. The Competition Act required utilities
to submit restructuring plans to the Pennsylvania Commission, including
quantification of their stranded costs (the loss in value of a utility's
electric generation-related assets which resulted from competition). The
Competition Act authorizes the recovery of stranded costs through charges to
distribution customers during a transition period. During the stranded cost
recovery period, the utility is subject to a rate cap which provides that total
charges to customers cannot exceed rates in place as of December 31, 1996,
subject to certain exceptions. In PECO's case, the stranded cost recovery period
will last until the end of 2010, during which time PECO's generation rates are
capped in accordance with a schedule approved by the Pennsylvania Commission. In
addition, PECO's transmission and distribution rates are capped through June 30,
2005, subject to certain exceptions.

     Pursuant to the Competition Act, PECO filed with the Pennsylvania
Commission a comprehensive restructuring plan detailing its proposal to
implement full customer choice of electric generation supplier. On May 14, 1998
the Pennsylvania Commission issued its Final Order accepting a "Joint Petition
for Settlement of PECO's Restructuring Plan and Related Appeals and Application
for a Qualified Rate Order and Application of Transfer of Generation Assets"
(hereinafter referred to as "Restructuring Settlement"). Pursuant to the terms
of the Restructuring Settlement, PECO's retail electric customers received an 8%
rate reduction in 1999 and are receiving a 6% rate reduction in 2000. Pursuant
to the Restructuring Settlement, PECO is authorized to, among other things,
recover from its retail electric customers approximately $5.3 billion of
stranded assets and costs and transfer its generation assets and liabilities and
wholesale power contracts to a separate corporate affiliate. Under the
Restructuring Settlement transactions between and among certain PECO affiliates
are subject to safeguards to ensure fair dealing. PECO's was the first
restructuring plan approved in Pennsylvania and, on a percentage and absolute
numbers basis, PECO has the highest number of customers exercising their retail
choice by buying electricity from alternative suppliers.

     PECO's Other Businesses

- --------------------------------------------------------------------------------
     348, order on reh'g, 13 FERC (P) 61,132 (1980) (the initial order was
     inadvertently omitted from the proper volume of FERC's reports).

                                       9
<PAGE>

     In addition to its regulated distribution businesses, PECO actively
competes in deregulated retail markets for electricity and natural gas. Although
its utility property and operations are generally confined to Pennsylvania,/15/
PECO markets or brokers electricity to retail customers in Massachusetts and New
Jersey as well./16/ PECO markets or brokers natural gas to a small number of
retail commercial and industrial customers in New Jersey and to customers in
areas of Pennsylvania outside its gas franchise territory. In these retail
choice programs, PECO acts as a marketer or broker. It does not own any utility
distribution property or operate any utility distribution facilities in states
other than Pennsylvania. PECO also engages in wholesale marketing of electricity
through its Power Team division. PECO PowerLabs is a division which calibrates
and verifies the accuracy of laboratory measuring and testing equipment.

     PECO has multiple subsidiaries that support its utility operations. A
complete list of PECO's subsidiaries and affiliated business interests is
contained in Exhibit I-2 hereto.

     In addition to PECO's utility and retail competition operations, PECO is
also engaged in certain non-utility businesses either directly, through
subsidiaries or through affiliated business ventures. In addition to the
information given on Exhibit I-2, the following describes certain of these non-
utility businesses.

     PECO, British Energy, plc of Edinburgh, Scotland, and BE, Inc., a U.S.
subsidiary of British Energy, have formed AmerGen Energy Company, L.L.C.
("AmerGen") to pursue opportunities to acquire and operate nuclear generating
stations in the United States. PECO and BE, Inc. each own a 50% equity interest
in AmerGen. As of the date of this Application-Declaration, AmerGen has acquired
the Three Mile Island Unit 1 in Pennsylvania and Clinton Power Station in
Illinois. AmerGen has also entered into separate Asset Purchase Agreements with
Niagara Mohawk Power Company, New York State Electric and Gas Company, Vermont
Yankee Nuclear Power Corporation, and GPU Nuclear, Inc. and Jersey Central Power
& Light

_______________
/15/ The only utility property located outside Pennsylvania is the Conowingo
     Project, which is located in both Pennsylvania and Maryland, and a 42.6%
     interest (which will increase to 50%) in Salem Nuclear Generating Station
     Unit Nos. 1 and 2, located in New Jersey. The Salem station is directly
     interconnected with PECO's system through the PJM operated transmission
     system. The Commission has previously recognized that joint participation
     in the construction of large generating facilities (particularly nuclear
     facilities) is appropriate and does not controvert the integration
     requirement of Section 2(a)(29)(A) of the Act. See Electric Energy, Inc.,
                                                    --- ---------------------
     Holding Co. Act Release No. 13871 (November 28, 1958); Yankee Atomic
                                                            -------------
     Electric Co., Holding Co. Act Release No. 13048 (November 25, 1955);
     ------------
     Mississippi Valley Generating Co., Holding Co. Act Release No. 12794
     ---------------------------------
     (February 9, 1955).

/16/ Exelon's electricity and natural gas brokering and marketing activities are
     permissible under the Act. The Commission and the SEC Staff have both
     recognized, on numerous prior occasions, that marketing activities are not
     utility activities under the Act. See UNITIL, Holding Company Act Release
                                       --- ------
     No. 26650 (January 21, 1997); SEI Holdings, Inc., Holding Co. Act Release
                                   ------------------
     No. 26581 (September 26, 1996); PP&L Resources, Inc., Holding Co. Act
                                     --------------------
     Release No. 26905 (August 12, 1998); Enron Capital & Trade Resources Corp.,
     SEC No-Action Letter, 1997 SEC No-Act. LEXIS 287 (February 13, 1997); LG&E
                                                                           ----
     Power Marketing, Inc., SEC No-Action Letter, 1996 SEC No-Act. LEXIS 510
     ---------------------
     (April 26, 1996). In SEI Holdings the Commission stated "[i]ndustry trends
                          ------------
     and competitive pressures make it important for registered system companies
     to be poised to compete in new markets as they are created. Such
     participation would appear to promote the goals of United States energy
     policy, including increased competition and lower rates."

                                       10
<PAGE>

Company to acquire, respectively, Nine Mile Point Unit 1, 59% of Unit 2, Vermont
Yankee/17/ and Oyster Creek nuclear plants. AmerGen has been granted exempt
wholesale generator ("EWG") determinations from the FERC in connection with the
first of these acquisitions and is applying for EWG determination with request
to the others./18/ PECO's 50% interest in AmerGen is authorized by section 32(e)
of the Act./19/

     In accordance with the provisions of the Telecommunications Act of 1996,
PECO entered the telecommunications business through undertakings with
experienced operators. PECO Hyperion Telecommunications is a general partnership
with Adelphia Business Solutions, Inc. that provides "competitive local exchange
carrier" services such as local dial tone, long distance, Internet service and
point-to-point (voice and data) communications for businesses and institutions
in eastern Pennsylvania. Through its subsidiary PECO Wireless, LLC, PECO holds a
49% interest in a company which offers personal communications services in the
Philadelphia "Major Trading Area." PECO's interests in these businesses are
authorized by section 34 of the Act. Other telecommunications related entities
in which PECO holds an interest are described in Exhibit I-2. /20/

     As discussed below under Item 3.B.3(a)(v), "Retention of Other Businesses,"
the non-utility operations of PECO will qualify as additional businesses of
Exelon under the Act pursuant to Rule 58 and other applicable provisions. Exelon
requests that the investment in the PECO activities which it will acquire at
consummation of the merger be disregarded for purposes of calculating the dollar
limitation upon investment in energy-related companies under Rule 58./21/ A list
of Rule 58 non-utility businesses and the basis for their retention is contained
in Exhibit I-2 hereto.

     PECO Financial Position

     PECO's authorized capitalization consists of 500 million shares of common
stock, 15 million shares of cumulative preferred stock and 100 million shares of
series preference stock. As of the close of business on December 31, 1999, there
were 181,271,692 shares of PECO

______________
/17/ AmerGen is assigning its rights and obligations under the Asset Purchase
     Agreement for Vermont Yankee to AmerGen Vermont, LLC, its wholly owned
     subsidiary formed for the purpose of owning and operating Vermont Yankee.

/18/ Letter Order, reported at 90 FERC (P) 62,061 (2000).
     ------------

/19/ Exelon's compliance with Rule 53 will be discussed in the separate
     financing Application-Declaration to be filed by Exelon.

/20/ To the extent that the companies identified above have not registered with
     the Federal Communications Commission ("FCC") as Exempt Telecommunications
     Companies on the date of the filing of this Application-Declaration, Exelon
     submits that it will act to ensure their registration with the FCC under
     Section 34 of the Act. To the extent such registration is not completed
     prior to the entry by the Commission of an order approving the Merger,
     Exelon expects to request that the Commission reserve its jurisdiction over
     these entities until Exelon makes a filing identifying the companies that
     have registered or explaining why they may otherwise be retained in
     accordance with the Act and the Commission's Rules.

/21/ See SCANA Corporation, Holding Company Act Release No. 35-27133 (Feb. 9,
     --- ------------------
     2000); New Century Energies, Inc., Holding Company Act Release No. 35-26748
            --------------------------
     (August 1, 1997).  Conectiv, Inc., Holding Company Release Act No. 35-26832
                        --------------
     (February 25, 1998); Ameren Corp., Holding Company Release Act No. 35-26809
                          ------------
     (December 30, 1997).


                                       11
<PAGE>

common stock and 1,930,920 shares of PECO cumulative preferred stock of various
series issued and outstanding./22/ PECO common stock is listed on the NYSE and
the Philadelphia Stock Exchange. Consolidated assets of PECO and its
subsidiaries as of December 31, 1999 were approximately $13 billion, consisting
of $4 billion in net electric utility property, plant and equipment; $931
million in net gas utility property, plant and equipment; and $138 million in
non-utility subsidiary assets, and $8 billion in other corporate assets. For the
year ended December 31, 1999, PECO had electric utility revenues of $4.85
billion and gas utility revenues of $481 million.

     Like Unicom and ComEd, PECO is a financially strong company. Following the
announcement of the revised Merger Agreement on January 7, 2000, Duff & Phelps
Credit Rating Co reaffirmed its ratings of PECO. At that date, PECO's first
mortgage bonds were rated "A-" and its implied senior unsecured debt was rated
"BBB+."

     Further Information

     More detailed information regarding the utility assets and operations of
PECO is included in its Annual Report on Form 10-K and Quarterly Reports on Form
10-Q which are filed as exhibits hereto and incorporated by reference.

  D. Exelon Services.

     Exelon Services will enter into a service agreement with ComEd, PECO, Genco
and other affiliates (the "General Services Agreement"). (A copy of the form of
the General Services Agreement is filed as Exhibit B-2.) The General Services
Agreement will include non-utility subsidiaries of Exelon as client companies.
In this Application-Declaration, Applicant seeks an exemption from or waiver of
the Commission's rules regarding the provision of service at cost to certain
affiliates of Exelon as described herein. Exelon may create more than one
service company to better organize its utility and non-utility operations. Other
service companies may perform some but not all of the services contemplated in
the General Services Agreement and would conduct business pursuant to a service
agreement substantially the same as the General Services Agreement and pursuant
to the allocation methods approved for Exelon Services.

  E. Description of the Merger

     The Merger is structured as a merger of equals. Following the Merger,
Unicom shareholders will own about 46% and PECO shareholders will own
approximately 54% of Exelon. The Merger is subject to customary closing
conditions, including the receipt of the requisite shareholder approvals of
Unicom and PECO and all necessary governmental approvals, including the approval
of the Commission.

     The Merger Agreement provides that through a transition period beginning
with the closing of the merger and ending December 31, 2003, the Board of
Directors of Exelon will consist of 16 members initially, 50% of the directors
will be recommended by Unicom from

_______________

/22/ Under the Merger Agreement, PECO has agreed to repurchase $500 million of
     its common stock prior to the Merger.

                                       12
<PAGE>

among the members of its board at the time of closing and 50% of the directors
will be recommended by PECO from among the members of its board at the time of
closing. The Board of Directors will be divided into three classes, as nearly
equal in number as possible, with equal numbers (as nearly as possible) of
Unicom and PECO directors in each class. In addition to the executive committee,
which shall include the two Co-CEO's and two PECO independent directors and two
Unicom independent directors, initially there will be other committees of the
board, with the chairmen to be equally divided between PECO designated directors
and Unicom designated directors. For the first half of the transition period,
Mr. Corbin A. McNeill, Jr., current Chairman and CEO of PECO, will be Chairman
and Co-CEO of Exelon, and Mr. John W. Rowe, current Chairman and CEO of Unicom,
will be Chairman of the Executive Committee of the Board, President and Co-CEO
of Exelon. For the second half of the transition period, Mr. McNeill will be
Chairman of the Executive Committee of the Board and Co-CEO of Exelon and Mr.
Rowe will be Chairman and Co-CEO of Exelon. At the expiration of the transition
period, Mr. McNeill will retire as an officer and employee of Exelon but will
remain a director. The bylaws of Exelon will provide that during the transition
period the terms of employment of Messrs. McNeill and Rowe and the succession
process described above can be changed only by a vote of at least two-thirds of
the directors.

     The Merger is structured to be tax-free to holders of PECO common stock and
Unicom common stock for United States Federal income tax purposes, except for
that portion of Merger consideration ($3.00 per share) received by Unicom
shareholders in cash, including any cash received instead of any fractional
shares in Exelon common stock. For accounting purposes, the Merger will be
treated as a "purchase" of Unicom by PECO.

     The Merger Agreement contains certain covenants relating to the conduct of
business by the parties pending the consummation of the Merger. Generally, the
parties must carry on their businesses in the ordinary course consistent with
past practice, may not increase common stock dividends beyond specified levels
and may not issue capital stock except as specified. The Merger Agreement also
contains restrictions on, among other things, charter and bylaw amendments,
capital expenditures, acquisitions, dispositions, incurrence of indebtedness,
and certain increases in employee compensation and benefits. Under the Merger
Agreement, Unicom is to use commercially-reasonable efforts to purchase in the
open market, or otherwise, its common stock in an amount of $1.0 billion prior
to the closing of the Merger. Under the Merger Agreement, PECO is to use
commercially-reasonable efforts to purchase in the open market, or otherwise,
its common stock in an amount of $500 million prior to the closing of the
Merger.

     The Merger Agreement provides that, after the effectiveness of the Merger,
Exelon's principal corporate office will be located in Chicago, Illinois. Exelon
will maintain corporate offices in Philadelphia as the headquarters of PECO
Energy and the combined entity's generation business will be headquartered in
southeastern Pennsylvania.

                                       13
<PAGE>

Item. 2.  Fees, Commissions and Expenses

  The fees, commissions and expenses to be paid or incurred, directly or
indirectly, in connection with the Merger, including the solicitation of
proxies, registration of securities of Exelon under the Securities Act of 1933,
and other related matters, are estimated as follows:

Commission filing fee for the Joint Registration Statement on Form S-4  $/23/

Accountants' fees...............................................................
Legal fees and expenses relating to the Act.....................................
Other legal fees and expenses...................................................
Shareholder communication and proxy solicitation................................
NYSE listing fee................................................................
Exchanging, printing, and engraving of stock certificates.......................
Investment bankers' fees and expenses...........................................
Consulting fees related to the Merger...........................................
Miscellaneous...................................................................
TOTAL.....................................................................======

Item. 3.  Applicable Statutory Provisions

     The following sections of the Act and the Commission's rules thereunder are
or may be directly or indirectly applicable to the Merger:

                             Transactions to which section or rule may be
Section of the Act           applicable:
- ------------------           ---------------------------------------------------
4, 5                         Registration of Exelon as a holding company
                             following consummation of the Merger.

6(a), 7                      Issuance of Exelon common stock in exchange for
                             shares of Unicom and PECO common stock.

9(a)(1), 10                  Acquisition by Exelon of stock of Exelon Services
                             and of non-utility subsidiaries of Unicom and PECO.

9(a)(2), 10(a), (b),         Acquisition by Exelon of common stock of ComEd,
(c) and (f), 11(b)           the Indiana Company, PECO, Genco, the Conowingo
                             Companies and any "utility" Opco.

_____________
/23/ To be filed by amendment

                                       14
<PAGE>

                             Transactions to which section or rule may be
Section of the Act           applicable:
- ------------------           ---------------------------------------------------
8, 9(c)(3), 11(b), 21        Retention by Exelon of the retail gas utility
                             operations of PECO; investment in and retention of
                             other businesses of Unicom and PECO and their
                             direct and indirect subsidiaries.

12                           Transfer of generating assets of ComEd and PECO to
                             Genco in the Restructuring; transfer of assets to
                             Exelon Services in connection with establishment of
                             service company.

13                           Approval of the services to be provided by Exelon
                             Services and any service company Opco to utility
                             subsidiaries in accordance with the General
                             Services Agreement (or equivalent); approval of
                             services to be provided thereunder by Exelon
                             Services to the direct and indirect non-utility
                             subsidiaries of Unicom and PECO; approval of the
                             performance of certain services between Exelon
                             system companies; and exemption from at-cost
                             standards with respect to certain services between
                             Exelon system companies.
Rules
- -----

43-44                        Transfers of utility assets and securities of
                             public utility subsidiaries

80-92                        Affiliate transactions, generally.

To the extent that other sections of the Act or the Commission's rules
thereunder are deemed to be applicable to the Merger, such sections and rules
should be considered to be set forth in this Item 3.

  A. Application of the Act in Light of the Evolving "State of the Art" of the
     Electric Utility Industry

     To approve the Merger, the Commission must find that Section 10 of the Act
is satisfied. The Section 10 analysis is presented in detail below in section B
"Section by Section Analysis" in this Item 3. The highlight of the analysis is
whether the Merger will tend toward the economical and the efficient development
of an integrated public-utility system under Sections 11 and 2(a)(29) of the
      --------------------------------
Act.  Applicant believes that it will. Before setting forth in detail how the
Merger satisfies each requirement of the Act, this Application-Declaration will
first describe in some of the recent changes in the utility industry that have
resulted in the current "state of the art."

                                       15
<PAGE>

     The Act directs the Commission to consider the "state of the art" in
determining whether the requirements of the Act are satisfied./24/ The
Commission has long recognized that as the industry changes -- by means of
technological development and by reason of new laws and regulations -- the
Commission faces the task of applying the requirements of the Act in light of
these changing conditions. Such changes since 1935 have made it possible for
ever larger and geographically more diverse companies to satisfy the standards
of the Act. Systems that would have been unlikely to receive approval in an
earlier era have proven to be not only permitted, but in fact made necessary, by
the evolving state of the art./25/ Neither the Act nor what it means have
changed, but the means by which utilities can comply with the Act have changed.
The Exelon system presents yet another case of a new way of complying with the
long-standing requirements of the Act. In particular, the manner in which Exelon
proposes to establish that it is "interconnected" and therefore to show that it
meets one of the conditions to the requirement of an "integrated" system,
presents a new idea. As will be shown, the means of interconnection -- through
the use of available open access transmission -- is fully consistent with the
requirements of the Act as demonstrated by recent cases. /26/

     In recent years the Commission has emphasized that the Act "creates a
system of pervasive and continuing economic regulation that must in some measure
at least be fashioned from time to time to keep pace with changing economic and
regulatory climates."/27/ In recent decisions, the Commission has cited U.S.
Supreme Court and Circuit Court of Appeals cases that recognize that an agency
is not required to "establish rules of conduct to last forever,"/28/ but must
"adapt [its] rules and policies to the demands of changing circumstances"/29/
and to "treat experience not as a jailer but as a teacher."/30/ Consequently,
the Commission has attempted to "respond flexibly to the legislative, regulatory
and technological changes that are transforming the structure and shape of the
utility industry," as recommended by Division of Investment Management (the
"Staff") in its report issued in June 1995 entitled "The Regulation of Public

______________
/24/ See the definition of "integrated public-utility system" in Section
     2(a)(29).

/25/ See, e.g., American Electric Power Company, Inc., Holding Co. Act Release
     ---------  -------------------------------------
     No. 20633 (July 21, 1978)

/26/ The discussion of the method of establishing "interconnection" sufficient
     to meet the integration requirements of the Act is found under Item 3,
     section 3. (ii) "The Merger is Not Detrimental to Carrying Out the
     Provisions of Section 11" and Item 3, section 3. (iii) (A) "Exelon Will
     Meet All Four Parts of the Integration Requirement -- Interconnection."

/27/ Union Electric Co., Holding Co. Act Release No. 18368, n. 52( April 10,
     ------------------
     1974), quoted in Consolidated Natural Gas Co., Holding Co. Act Release No.
                      ----------------------------
     26512 (April 30, 1996) (authorizing international joint venture to engage
     in energy marketing activities); Eastern Utilities Associates, Holding Co.
                                      ----------------------------
     Act Release No. 26232 (Feb. 15, 1995) (removing restrictions on energy
     management activities); and Southern Co., Holding Co. Act Release No. 25639
                                 ------------
     (Sept. 23, 1992) (approving acquisition of foreign public-utility
     subsidiary company).

/28/ Rust v. Sullivan, 500 U.S.  173 (1991); American Trucking Assns., Inc. v.
     ----------------                        ---------------------------------
     Atchison, T.&S.F.R. Co., 387 U.S. 397 (1967); Shawmut Assn. v. SEC, 146
     -----------------------                       --------------------
     F.2d, 791 (1st Cir. 1945).

/29/ NIPSCO Industries, Inc., Holding Co. Act Release No. 26975 (Feb. 10,
     -----------------------
     1999) [hereinafter "NIPSCO"], citing Rust v. Sullivan at 186-187. Accord,
                         ------           ---------------
     Sempra Energy, Holding Co. Act Release No. 26971 n.23 (Feb. 1, 1999)
     -------------
     (interpreting the integration standards of the 1935 Act in light of
     developments in the gas industry).

/30/ NIPSCO, supra, citing Shawmut Assn. v. SEC at 796-97.
     ------  -----  ------ --------------------

                                       16
<PAGE>

Utility Holding Companies" (the "1995 Report").  Indeed, with specific reference
to the integration requirements of the Act, the 1995 Report explains:

     The statute recognizes . . . that the application of the integration
     standards must be able to adjust in response to changes in "the
     state of the art." As discussed previously, the Division believes
     the SEC must respond realistically to the changes in the utility
     industry and interpret more flexibly each piece of the
     integration equation./31/

     The current state of the art is characterized by the development of
competitive wholesale electric supply markets resulting from changes in Federal
law and regulations and the adoption by States of utility restructuring laws
leading to retail customer choice and other changes. Increasingly, electric
utilities no longer rely solely on acquiring their own, more efficient
generation to achieve efficiencies and economies.

     Because of these changes, the electric utility industry today is much
different from what it was -- even in the recent past.  The utility market
                                                            --------------
model, with generation functionally unbundled from transmission and
distribution, is supplanting the vertically integrated monopoly model throughout
                                 ------------------------------------
the country. Developments in Federal law and regulations have led to a wholesale
competitive electric generating market. The access for all eligible parties to
interstate transmission is a critical component of this market. The market model
has evolved further in some States, like Illinois and Pennsylvania. Unlike many
recent or pending merger cases at the Commission, in this case the legislatures
of the States where the companies operate have enacted State utility
restructuring legislation. In Illinois and Pennsylvania, pursuant to this recent
legislation, retail customers have a choice in determining who will supply their
electric power. Customer choice -- the elimination of the traditional monopoly
over the generation aspects of electric service -- fundamentally changes the
nature of regulation. In this case, each State has adopted laws and policies
seeking to provide consumers the benefits of competition. Further, technological
developments are changing the nature of the industry. So called "distributed
generation" and other developments have fundamentally changed how electricity is
produced and distributed and have accelerated the movement to the market model.

     The Merger is unique in that it is one of the first to take full advantage
of the developing market model of achieving integrated and coordinated
operations. Unlike many registered holding companies, Exelon will consolidate
all of its generating assets in a single entity: Genco. Genco will control and
coordinate the efficient use of all these generating assets by supplying the
generation needs of ComEd and PECO as well as supplying Exelon's other wholesale
customers. Exelon will obtain its power supply not just from its owned
facilities -- the facilities formerly owned by ComEd and PECO and transferred to
Genco -- but from a variety of market sources. Further, Exelon will coordinate
the dispatch of these generation sources not only through the use of the ComEd
and PECO transmission systems, but by using a portion of the open access
transmission grid. The entire working model of the industry has shifted from
"build and own all generation necessary to serve your load" to "consider all
supply options available in the market -- both local and distant." Likewise, the
transmission grid has developed physically, but more

_____________
/31/  1995 Report at 71.

                                       17
<PAGE>

importantly in the legal and operational manner discussed below, to accommodate
this new working model.

     Development of the competitive model for electric generation began with the
Public Utility Regulatory Policies Act of 1978 ("PURPA"), which encouraged the
development of new sources of generation. The development of the market for non-
traditional generation for the wholesale market accelerated significantly after
adoption of the Energy Policy Act of 1992 ("EPACT"). This progress has been
facilitated by FERC's willingness to permit the sale of electric capacity and
energy at market-based rates. The regulatory policy fostering market based rates
for the commodity of electricity applies not only to non-utility generators and
independent power producers ("IPPs"), which developed in the wake of PURPA, but
also to traditional integrated utilities, like ComEd and PECO, who have
increasingly focused on their own wholesale marketing efforts./32/ The
increasing number of wholesale sellers has also led to the development of power
marketers (many of which are affiliated with utilities) -- a relatively new
class of wholesale market participant that purchases and sells power produced by
third parties, not from their own resources.

     The increase in the number of, and capacity controlled by, non-traditional
generators, and the volume of trading by power marketers has been dramatic.
Nationwide, plans to build new plants by non-utility entities have expanded
dramatically.  For example, PJM makes public requests received by it for
interconnection to the PJM transmission grid by new generating sources.  As of
January, 2000, the "queue" of applications for connection with the PJM grid
included about 100 active projects with a total of about 40,000 MW./33/.
Similar plant additions have been announced by IPPs in the Midwest as well. By
the first quarter of 1999, power traded by marketers exceeded 400 million MWh,
with over 100 entities engaged in the business./34/

     The increased capacity of non-traditional generators, and the number of
suppliers, as well as the liquidity created by power marketers has had an impact
on energy pricing. Energy marketers commonly arbitrage energy price
differentials by buying in one market and selling in another. The effect of
these trading strategies is to minimize margins to be gained in interregional
sales and therefore to drive electric supply market prices closer to a regional-
wide marginal (or incremental) cost. As prices move to marginal cost, rate
differentials arising from historical embedded cost begin to disappear. Non-
traditional generators operating in the national energy markets also are
becoming a more significant factor in the electric utility industry. Their
significant plant additions lessen the impact of historical embedded utility-
specific price differentials by changing the cost structure of the industry as a
whole.


__________________
/32/ ComEd and PECO have each been granted market rate authority and participate
     in wholesale markets. PECO's wholesale power marketing operation division
     (the Power Team) is one of the most active power marketers in the country.
     It ranked 14/th/ out of the top 45 wholesale power sellers in 1998. Power
                                                                         -----
     Markets Week, at 16 (June 28, 1999).
     ------------

/33/ Current information can be found at http://www.pjm.com/ For reference, the
                                         -------------------
     PJM ISO has a peak load of about 51,000 MW./

/34/ Order No. 2000 at 15.

                                       18
<PAGE>

     At the same time as these developments were occurring, many States began
implementing integrated resource planning requirements that mandate that
utilities focus on both supply-side and demand-side resources and that require
local utilities to competitively bid their resource requirements to obtain the
lowest cost resources possible. Under these resource procurement requirements,
utilities typically must purchase power from third parties (rather than provide
for their own generation) if to do so would result in lower costs to consumers.
Thus, State regulators have widely recognized that the economic operation of a
utility system must include the benefits of integration through the marketplace
and not just the effects of vertically-integrated ownership structure. Illinois
and Pennsylvania have moved beyond these steps, however, and have acted to fully
open the generation supply function to competition.

     For various reasons, including State utility restructuring laws, utilities
have been selling large amounts of generating assets. From August 1997, through
early 1999 approximately 80,000 MW of generating capacity was sold (or was under
contract to be sold) by utilities. In total, this represents more than 10
percent of U.S. generating capacity./35/ ComEd itself has sold 11,272 MW of
capacity (about 55% of its total capacity before the sales) to unaffiliated
purchasers. These sales contribute to the development of the market for
generation by increasing the capacity in the hands of non-traditional generators
and bringing new competitors into most local markets.

     These developments make it clear -- the old model of "generating all you
use" no longer prevails. The traditional means of achieving economies and
efficiencies -- acquiring additional generation -- no longer apply. Utilities --
to the extent they provide retail bundled service -- will have to shop from a
number of sources to obtain the most economical generation. The development of
the open access transmission grid enables the utility to expand the region in
which they can find supplies. Further, in states such as Illinois and
Pennsylvania, which have opened the generating function to competition, the
traditional utility will no longer be the only source of generation. All
customers will rely a wide-spread, increasingly national market to provide
generation at a market driven price.

     The Merger is in direct response to these developments. ComEd and PECO will
use Genco to coordinate their "shopping" efforts. Further, Genco will use its
marketing abilities to sell the generation output of facilities controlled by
Exelon in the most efficient manner possible -- to ComEd and PECO and to other
customers. Importantly, and as described in the following paragraphs, Genco will
be able to arrange for the delivery of this power to where it is needed by
relying on open access transmission.

     Following the enactment of EPACT, FERC recognized that the full development
of a vigorous and competitive wholesale generation market would not be possible
without a means for these new classes of generators and power marketers to move
power from the generating facility to distant customers. Seeking to foster the
wholesale generation markets, FERC has mandated changes in the legal framework
of the interstate transmission grid to enable these generators to market
electricity to an expanding number of customers. As a result, traditional


____________________
/35/ RTO NOPR at 33,690.

                                       19
<PAGE>

utilities may also use the transmission grid to coordinate the activities of
          ------------
their own generation and distribution functions.

     EPACT changed the legal framework for the interstate transmission of
electricity. Under this law, utilities could request transmission service over
the systems of others. This expanded the circumstances in which a non-
traditional generator, or two remote generation owning utilities, could
economically move power from one place to another. FERC initially implemented
EPACT on a case-by-case basis, ordering individual utilities to enter into
specific transactions to transmit another entity's power over the transmission
owner's system. Later it used its authority under EPACT, and its authority to
remedy discriminatory conduct under the Federal Power Act (FPA), to require all
                                                                            ---
utilities under its jurisdiction to open their transmission systems and allow
- --------------------------------
any qualified entity to use their system on a regular basis to deliver
electricity at a fair and non-discriminatory rate.  The new requirements, known
simply and descriptively as "open access" came about in 1996 in FERC's Order No.
888 and its progeny./36/  Order No. 888's key provision was the requirement that
utilities file standard transmission tariffs (called "OATTs" -- open access
transmission tariffs) under which a transmission provider must offer service to
any qualified user.  OATTs provided utilities, other generation owners and power
marketers for the first time with a generally available right to use the
transmission systems of others to move power at tariffed rates.

     In Order No. 889,/37/ a companion 1997 ruling, FERC also mandated that
transmission owners establish a comprehensive information system regarding the
availability and price of their transmission service on an Internet site called
Open Access Same-Time Information System ("OASIS"). The OASIS provides a
practical and efficient means for distant utilities to use the interstate
transmission grid to coordinate their operations. Because of these changes it is
now possible for utilities that are not adjacent to gain the advantages of
coordinated operation, to jointly use their various generating assets on an
economic basis and otherwise act as an integrated public utility company through
the use of the OATTs and OASIS. Importantly, "open access" as dictated by Order
Nos. 888 and 889, provides an easy to use, day-to-day means of coordinating
electric operations. Unlike in the past, when inter-company transmission
required complex, separately negotiated agreements, open access is available to
all on minimal notice and at standard terms.

     As a means of establishing interconnection sufficient to achieve
integration under the Act, these legal and practical circumstances have only
become available in recent years -- in fact


________________
/36/ Promoting Wholesale Competition Through Open Access Non-Discriminatory
     Transmission Service by Public Utilities; Recovery of Stranded Costs by
     Public Utilities and Transmitting Utilities, FERC Stats. and Regs.,
     Regulations Preambles, (P) 31,036 (1996) ("Order No. 888"), order on
     rehearing, FERC Stats. & Regs., Regulations Preambles, (P) 31,048 (1997)
     ("Order No. 888-A"), order on rehearing, 81 FERC (P) 61,248 (1997) ("Order
     No. 888-B"), order on rehearing, 82 FERC (P) 61,046 (1998) ("Order No. 888-
     C").

/37/ Open Access Same-Time Information System (formerly Real-Time Information
     ------------------------------------------------------------------------
     Network) and Standards of Conduct, Order No. 889, [1991-1996 Transfer
     ---------------------------------
     Binder] FERC Stats. & Regs., Regs. Preambles (P) 31,035, at 31,585 (1996),
     order on reh'g, Order No. 889-A, III FERC Stats. & Regs., Regs. Preambles
     --------------
     (P) 61,253 (1997).

                                       20
<PAGE>

only since about 1997./38/ The Merger of Unicom and PECO is one of the first to
take advantage of this opportunity.

     Because of the importance of OATTs and OASIS to Exelon's assertion that its
electric facilities are "interconnected" and, therefore, that it is an
integrated system, Exelon has prepared an Analysis of How the Interconnection
                                          -----------------------------------
Requirement of PUHCA is Satisfied by OATTs and OASIS ("Interconnection
- ----------------------------------------------------   ---------------
Analysis").  This Interconnection Analysis, filed as Exhibit K-1 to this
                  ------------------------
Application-Declaration and incorporated by reference herein, describes in
detail the historical development of the interstate transmission grid in the
United States referred to in the preceding paragraphs of this Application-
Declaration. The Interconnection Analysis also traces the development of the
                 ------------------------
competitive generating sector of the electric utility industry and demonstrates
how that development, spurred by EPACT and FERC Order Nos 888 and 889, has led
to a system which will enable Exelon to operate efficiently, under normal
conditions, as a coordinated and integrated public-utility system. Finally, the
Interconnection Analysis includes a practical guide to moving power describing
- ------------------------
in detail exactly how the OATT and OASIS system will work to effectively and
economically interconnect the parts of the Exelon system.  The Interconnection
                                                               ---------------
Analysis does not attempt a legal analysis of how Exelon meets the integrated
- --------
public-utility system requirement of the Act -- that analysis follows in Part B,
"Section by Section Analysis" to this Item 3.  Rather, the Interconnection
                                                           ---------------
Analysis gives a description, too detailed to include here, of the factual basis
- --------
for the conclusion that open access transmission constitutes "interconnection"
within the meaning of the Act.

     Unicom and PECO recognize and embrace the changes in the industry and
believe that the Merger will result in an integrated public-utility system
positioned for competition in the utility industry of the future. Open access to
transmission, retail electric competition and technological changes are
promoting the growth of larger and more competitive regional wholesale power
markets. As more buyers and sellers participate in broader bulk power markets,
increased competition will tend to produce lower and more stable electricity
prices for the benefit of consumers. Although open access transmission is fully
developed to enable Exelon to coordinate its utility operations, the
transmission markets will become even more liquid and seamless, as a result of
FERC's policy of promoting regional transmission organizations ("RTOs"), as most
recently evidenced by its issuance of Order No. 2000 on December 15, 1999./39/
The development of RTOs will further streamline the currently robust market for
the

____________________
/38/  The requirement to file an OATT was effective in 1996. OASIS went into
      operation in 1997.

/39/  Order No. 2000, Docket No. RM99-2-000, Final Rule Regional Transmission
      Organizations (December 15, 1999), 89 FERC (P) 61,285 (1999). FERC defines
      an RTO as an entity that satisfies the minimum characteristics
      (independence, scope and regional configuration, operational authority and
      short-term reliability) and minimum functions (tariff administration and
      design, congestion management, parallel path flow, ancillary services,
      OASIS information, market monitoring, planning and expansion and
      interregional coordination). 18 CFR (S) 35.34. Under the provisions of
      Order No. 2000, to date the only proposed "RTO" is the Alliance RTO.
      Alliance Companies, 89 FERC (P) 61,298 (1999). The regional organizations
      ------------------
      to which ComEd and PECO belong, MISO and PJM, are "independent system
      operators," which is a type of organization structure for the control or
      operation of transmission facilities of multiple owners. Order No. 2000 at
      24. MISO and PJM may become RTOs in the future. Order No. 2000 requires
      all public utilities that own, operate or control interstate transmission
      facilities subject to FERC jurisdiction to file, by October 15, 2000, a
      proposal for an RTO with the minimum characteristics and functions
      identified in Order No. 2000, or, alternatively, a description of any
      efforts made by the utility to participate in an RTO, any obstacles to
      participation, and any plans and timetable for further work toward RTO
      participation. Public utilities that are

                                       21
<PAGE>

interstate movement of electricity and provide the tools for meeting the
ever increasing demand for capacity on the interstate grid. State and Federal
policy makers have recognized that the economic operation of utility systems can
be achieved, and indeed is perhaps best achieved, through contractual relations
in a competitive marketplace, and not simply through ownership of generation,
transmission and distribution facilities.

     To summarize the current state of the art described in this section, the
ongoing corporate restructuring of the U.S. utility industry reflects the
effects of emerging FERC policy on market-based power pricing and on
transmission, including Order Nos. 888, 889 and 2000 requiring open access
transmission on comparable terms and the functional unbundling of the
transmission and wholesale merchant functions, the formation of ISOs and the
development of RTOs. It is also the product of many recent State laws mandating
competitive resource procurement, retail electric competition and the functional
separation (and in some States, divestiture) of generation from transmission and
distribution operations. Layered on these changes are both rapid developments in
technology and the emergence and growth of the power marketing and energy
trading industry, both of which facilitate efficient and competitive low-cost
electric markets. The cumulative effect of these regulatory, technological and
economic changes has dramatically altered the "state of the art" that Congress
directed the Commission to consider more than sixty years ago. The Commission
must "respond realistically to the changes in the utility industry and interpret
more flexibly each piece of the integration equation."/40/ The SEC Staff in its
1995 Report advised the SEC that "open access under FERC Order No. 636,
wholesale wheeling under the Energy Policy Act and the development of an
increasingly competitive and interconnected market for wholesale power have
expanded the means for achieving the interconnection and the economic operation
and coordination of utilities with non-contiguous service territories." The
"means for achieving interconnection" referred to in the 1995 Report are even
more developed because of the open access requirements of Order No. 888 and
Order No. 2000 which were promulgated after the 1995 Report was prepared.


     The 1935 Act was intended, among other things, to prevent the evils that
arise "when the growth and extension of holding companies bears no relation to
the economy of management and operation or the integration and coordination of
related operating properties . . ."/41/ The Exelon system will be an example of
growth that promotes economies and coordination of related operating properties
within a single region in a manner consistent not only under the policies of

- --------------------------------------------------------------------------------
      members of an existing, FERC-approved regional entity must file by January
      15, 2001 an explanation of the extent to which the regional entities in
      which they participate meet the minimum characteristics and functions of
      an RTO. In Order No. 2000, FERC has adopted a flexible approach that
      permits a number of different types of RTOs to come into being, including
      non-profit independent system operators and for-profit transmission
      companies (transcos), combinations of these two types of entities, or
      other approaches as yet to be determined. FERC also adopted the principle
      of "open architecture" so that an RTO and its members can evolve over time
      and improve structure, geographic scope, market support and operations to
      meet market needs. FERC will allow RTOs to propose changes to their
      enabling agreements to meet changing market, organization and policy
      needs. The inefficiencies that continue to exist in today's open access
      transmission system will be reduced as RTOs develop and mature. More
      information on how RTOs will further facilitate the open access
      transmission system is set forth in the Interconnection Analysis.
                                              ------------------------

/40/  1995 Report at 67.

/41/  Section 1(b)(4).

                                       22
<PAGE>

the Act, but also with the policies of FERC and State regulatory initiatives.
Under the Act, the ultimate determination has always been whether, on the facts
of a given matter, the proposed transaction "will lead to a recurrence of the
evils the Act was intended to address."/42/ The following section B, "Section by
Section Analysis" will examine each of the requirements of the Act and show that
the Merger will satisfy all those provisions, will not result in a recurrence of
the evils to which the Act is directed and, therefore, should be approved by the
Commission.

  B. Section by Section Analysis

     The following is a section-by-section analysis that will demonstrate that
the Merger is consistent with each of the referenced sections of the Act and
should, therefore, be approved by the Commission. This discussion will show that
the Merger clearly comports with Commission precedent. As noted, the one area
where the Merger might be said to present novel facts, is in the method of
establishing "interconnection" sufficient to meet the integration requirements
of the Act. The discussion of this topic is found under section 3. (ii) "The
Merger is Not Detrimental to Carrying Out the Provisions of Section 11" and
section 3. (iii) (A) "Exelon Will Meet All Four Parts of the Integration
Requirement -- Interconnection," below.

     1.  Section 9(a)(2) -- Acquisition of Utility Stock

     Section 9(a)(2) makes it unlawful, without approval of the Commission under
Section 10, "for any person...to acquire, directly or indirectly, any security
of any public-utility company, if such person is an affiliate...of such company
and of any other public-utility or holding company, or will by virtue of such
acquisition become such an affiliate."/43/ As a result of the Merger, Exelon
will directly or indirectly acquire all of the outstanding voting securities of,
and therefore be an affiliate of, each of the following public-utility
companies: ComEd, the Indiana Company, PECO, Genco and the Conowingo
Companies./44/ The Merger therefore requires prior Commission approval under the
standards of Section 10. The relevant standards are set forth in Sections 10(b),
10(c) and 10(f) of the Act.

     The Merger complies with all of the applicable provisions of Section 10 of
the Act and should be approved by the Commission:

     .    The consideration to be paid in the Merger is fair and reasonable.

___________________
/42/   Union Electric Co., quoted in Southern Co., Holding Company Act Release
       ------------------            ------------
       No. 25639 (Sept. 23, 1992).

/43/   Under the definition set forth in Section 2(a)(11), an "affiliate" of a
       specified company means "any person that directly or indirectly owns,
       controls, or holds with power to vote, 5 per centum or more of the
       outstanding voting securities of such specified company," and "any
       company 5 per centum or more of whose outstanding voting securities are
       owned, controlled, or held with power to vote, directly or indirectly, by
       such specified company."

/44/   See Note 2 supra regarding the possibility of additional "public utility
       ---        -----
       companies" being created as part of the Exelon system. Any such public
       utility will involve only the existing facilities and operations of ComEd
       or PECO and no utility facilities or operations of any other unaffiliated
       party will be acquired (other than qualified EWGs and FUCOs).

                                       23
<PAGE>

     .    The Merger will not create detrimental interlocking relations or
          concentration of control.

     .    The Merger will not result in an unduly-complicated capital structure
          for the Exelon system.

     .    The Merger is in the public interest and the interests of investors
          and consumers.

     .    The Merger is consistent with Section 8 and not detrimental to
          carrying out the provisions of Section 11 of the Act.

     .    The Merger tends toward the economical and efficient development of an
          integrated electric system and a permitted additional integrated gas
          system.

     .    The Merger will comply with all applicable State laws.

     2.  Section 10(b) -- Commission to Approve if Three Requirements Met

     Section 10(b) provides that if the requirements of Section 10(f) are
satisfied, the Commission shall approve an acquisition under Section 9(a) unless
the Commission finds that:

     .    such acquisition will tend towards interlocking relations or the
          concentration of control of public-utility companies, of a kind or to
          an extent detrimental to the public interest or the interests of
          investors or consumers;

     .    in case of the acquisition of securities or utility assets, the
          consideration, including all fees, commissions, and other
          remuneration, to whomsoever paid, to be given, directly or indirectly,
          in connection with such acquisition is not reasonable or does not bear
          a fair relation to the sums invested in or the earning capacity of the
          utility assets to be acquired or the utility assets underlying the
          securities to be acquired; or

     .    such acquisition will unduly complicate the capital structure of the
          holding-company system of the applicant or will be detrimental to the
          public interest or the interests of investors or consumers or the
          proper functioning of such holding-company system.

          (a)  Section 10(b)(1) -- Interlocking Relations/Concentration of
Control

     Applicable Standard.  The standards of Section 10(b)(1) are satisfied
     --------------------
because the Merger will not "tend towards interlocking relations or the
concentration of control of public utility companies, of a kind or to an extent
detrimental to the public interest or the interests of investors or consumers."
By its nature, any merger results in new links between previously unrelated
companies. The Commission has recognized that such interlocking relationships
are permissible in the interest of efficiencies and economies./45/ The links
that will be established as a result of the

______________________
/45/   Northeast Utilities, Holding Co. Act Release No. 25221 (Dec. 21, 1990),
       -------------------
       as modified, Holding Co. Act Release No. 25273 (Mar. 15, 1991), aff'd sub
                                                                       ---------
       nom. City of Holyoke v. SEC, 972 F.2d 358 (D.C. Cir. 1992) ("interlocking
       ---  ----------------------
       relationships are necessary to integrate [the two merging entities]").

                                       24
<PAGE>

Merger are not the types of interlocking relationships targeted by Section
10(b)(1), which is primarily aimed at preventing business combinations for
reasons unrelated to attaining operating synergies. In the present
circumstances, the so-called interlocking relationships will consist of new
Boards of Directors of Exelon and its subsidiaries and various contractual
arrangements designed to integrate the Exelon system and to produce efficiencies
and economies. The Merger Agreement provides for the Board of Directors of
Exelon to consist of up to 16 members, one-half designated by Unicom and one-
half designated by PECO./46/ This is a typical arrangement in a merger of equals
transaction such as the Merger.

     A variety of contractual arrangements among the companies in the Exelon
system will be established, including the following:

     .    General Service Agreements. ComEd, the Indiana Company, PECO, Genco
          --------------------------
          and the Conowingo Companies will each enter into a General Services
          Agreement with Exelon Services. Under the General Services Agreement,
          Exelon Services will also provide services to Exelon's direct and
          indirect non-utility subsidiaries. Through the consolidation of
          functions into Exelon Services, the Exelon system will achieve
          substantial economies and efficiencies. Services incidental to their
          business function may be provided directly by ComEd or PECO. These
          services will be also subject to Commission rules. The provision of
          services between ComEd and PECO and certain affiliates will be subject
          to State regulation as well.

     .    Genco, ComEd, PECO Power Sales Agreements. All generating facilities
          -----------------------------------------
          of ComEd and PECO will be transferred to Genco. Genco will enter into
          arrangements with ComEd and PECO to provide them with power necessary
          for them to meet their "bundled service" or "provider of last resort"
          obligations under State law and, at the request of ComED and PECO,
          will be available to meet future supply needs or coordinate purchases
          from non-affiliated suppliers. Genco will coordinate Exelon's
          purchases of power from non-affiliated entities for its competitive
          marketing activities. Because of this consolidation of generation in a
          single entity, the Exelon system will not need the typical "joint
          operating agreement" or "joint dispatch agreement" that many other
          systems use to achieve coordinated operations.

     .    Operating Agreements. To maximize the efficient operation of the
          --------------------
          Exelon system, Exelon may provide for certain utility functions, such
          as operation and maintenance of generating or transmission facilities,
          to be coordinated through an "Operating Company" subsidiary. Opco will
          have the necessary agreements with the owner of the facilities (Genco,
          ComEd, PECO, or the EWG's owned by AmerGen or otherwise) to provide
          these operating and maintenance functions. In all cases, the ultimate
          control over nuclear generating stations and the operation of those
          stations will remain with the owner and NRC licensee of those
          facilities.


______________________
/46/   The Applicant acknowledges the requirements of Section 17(c) of the Act
       and Rule 70 thereunder with respect to limitations upon directors and
       officers of registered holding companies and subsidiary companies thereof
       having affiliations with commercial banking institutions and investment
       bankers and undertake that, upon completion of the Merger, it will be in
       compliance with the applicable provisions thereof.

                                       25
<PAGE>

     .    Marketing. The function of marketing the available generating capacity
          ---------
          of the Exelon system will be coordinated by Genco. Genco will include
          the existing energy marketing functions of PECO's Power Team as well
          as the wholesale sales and marketing operations of ComEd.

     These arrangements are necessary to integrate ComEd, the Indiana Company,
PECO, Genco and the Conowingo Companies fully into the Exelon system and will
therefore be in the public interest and the interest of investors and consumers.
Forging such relationships is beneficial to the protected interests under the
Act and, thus, is not prohibited by Section 10(b)(1).  Because substantial
benefits will accrue to the public, investors and consumers from the combination
of Unicom and PECO, whatever interlocking relationships may occur as a result of
the combination are not detrimental.

     In applying Section 10(b)(1) to utility acquisitions, the Commission must
further determine whether the acquisition will create "the type of structures
and combinations at which the Act was specifically directed."/47/ The Merger
will not create a "huge, complex and irrational system" but, rather, will afford
the opportunity to achieve economies of scale and efficiencies for the benefit
of investors and consumers. The Merger is a direct response to the desire of the
legislature and regulators in Illinois and Pennsylvania to enhance competition
in the electric utility business. See American Electric Power Company, Inc.,
                                  --- -------------------------------------
Holding Co. Act Release No. 20633 (July 21, 1978) ("AEP").  As explained in the
                                                    ---
Joint Proxy Statement and Prospectus of Unicom and PECO (the "Joint Proxy
Statement") (a copy of which is included as Exhibit C-2), a primary reason for
the Merger is to position the companies to participate in the growing and
increasingly competitive energy markets.  Specifically, the Merger will combine
the strengths of the two companies, enabling them to offer customers a broader
array of energy products and services more efficiently and cost-effectively than
could either company acting alone. At the same time Exelon will benefit from
larger and more diverse asset and customer bases, with enhanced opportunities
for operating efficiencies and risk diversification.  Although Exelon will be
one of the larger registered holding companies, its operations will not exceed
the economies of scale of current electric generation and transmission
technology, nor provide undue market power or control to Exelon in the region in
which it will provide service.

     Size.  While the combination of Unicom and PECO will result in a larger
     -----
utility system, it will not exceed the economies of scale that may be achieved
from modern electric generation and transmission technology, on the one hand,
and gas transportation technology on the other.  If approved, the Exelon system
will serve approximately 4.8 million electric customers and 400,000 gas
customers located primarily in two states.  As of December 31, 1999, the
combined consolidated assets of Unicom and PECO totaled approximately $35.7
billion and, for the year ended December 31, 1999, combined consolidated
operating revenues totaled approximately $12.2 billion.  As of December 31,
1999, the combined owned summer generating capacity of the regulated utility
operations of ComEd and PECO totaled approximately 18,000 to 19,000 MW.  This
figure does not include generating assets owned by AmerGen.

______________________
/47/   Vermont Yankee Nuclear Power Corp., Holding Co. Act Release No. 15958
       ----------------------------------
       (Feb. 6, 1968).

                                       26
<PAGE>

     The following table shows the Exelon system's relative size as compared to
other registered systems in terms of assets, operating revenues and
customers/48/:

<TABLE>
<CAPTION>
                  Total Assets   Operating Revenues   Electric Customers
        System    ($ Millions)      ($ Millions)          (Thousands)
        ------    ------------      ------------          -----------
     <S>          <C>            <C>                  <C>
     Southern         $36,192           $11,403                3,794
     Entergy           22,848            11,495                2,495
     AEP /49/          19,483             6,346                3,022
     CSW               13,744             5,482                1,752
     GPU               16,288             4,249                2,041
     Exelon            36,726            12,225                4,737
</TABLE>

     Moreover, the Commission has approved a number of acquisitions involving
larger and similarly-sized operating utilities./50/

     The Commission has rejected a mechanical size analysis under Section
10(b)(1) in favor of assessing the size of the resulting system with reference
to the economic efficiencies that can be achieved through the integration and
coordination of utility operations.  See, e.g., AEP, supra.  The Commission in
                                     ---  ----  ---  -----
AEP noted that, although the framers of the Act were concerned about "the evils
- ---
of bigness, they were also aware that the combination of isolated local
utilities into an integrated system afforded opportunities for economies of
scale, the elimination of duplicate facilities and activities, the sharing of
production capacity and reserves and generally more efficient operations...[and]
[t]hey wished to preserve these opportunities."  Id.  By virtue of the Merger,
                                                 ---
Exelon will be in a position to realize precisely these types of benefits.
Among other things, the Merger is estimated to yield labor cost savings,
corporate and administrative and purchasing savings, and savings in the cost of
fuel, information technology, facilities, vehicles, and corporate programs
including insurance, advertising, organization dues and benefits./51/

_________________________
/48/   Source: U.S. Securities and Exchange Commission, Financial and Corporate
       Report. Holding Companies Registered under the Public Utility Holding
       Company Act of 1935 as of July 1, 1999 (data provided is as of December
       31, 1998); Unicom and PECO from Unaudited Pro Forma Combined Condensed
       Financial Statements included in S-4 Registration Statement filed as an
       Exhibit hereto.

/49/   The proposed merger of American Electric Power and Central and South West
       Corporation is pending before the Commission. In Amendment No. 4 to the
       U-1 filed in connection with the merger American Electric Power indicates
       that the combined company would have revenues of $9,834 million, assets
       of $33,227 million and electric customers of 4.7 million.

/50/   See, e.g., Entergy Corporation, Holding Co. Act Release No. 25952 (Dec.
       ---  ----  -------------------
       17, 1993) (acquisition of Gulf States Utilities; combined assets at time
       of acquisition in excess of $22 billion); TUC Holding Company, Holding
                                                 -------------------
       Co. Act Release No. 26749 (Aug. 1, 1997) (combination of Texas Utilities
       Company and ENSERCH Corporation; combined assets at time of acquisition
       of $24.0 billion).

/51/   These expected economies and efficiencies from the combined utility
       operations are described in greater detail in Item 3.B. 3(b).

                                       27
<PAGE>

     Competitive Effects.  Section 10(b)(1) also requires the Commission to
     --------------------
consider the possible anticompetitive effects of a proposed combination. In this
case, Unicom and PECO have filed Notification and Report Forms with the
Department of Justice and the Federal Trade Commission pursuant to the HSR Act
describing the effects of the Merger on competition in the relevant market.  It
is a condition to the consummation of the Merger that the applicable waiting
period under the HSR Act shall have expired or been terminated.

     The competitive impact of the Merger will also be considered by FERC. The
Commission has found, and the courts have agreed, that it may watchfully defer
to FERC with respect to such matters./52/

     As summarized in the testimony of Dr. Heironymous submitted in support of
the FERC application (filed as Exhibit D-1.2 hereto), there is no adverse impact
on competition resulting from the consolidation of the pre-merger market shares
of ComEd and PECO. The Merger passes the required economic capacity screening
analysis except for a relatively minor failure in one destination market in
certain time periods. This single failure arises from Dr. Hieronymus'
conservative treatment of a ten-year, 300 MW sales agreement which PECO and
ComEd entered into in 1996./53/ While in their FERC application ComEd and PECO
request that no mitigation be required to offset this screen failure, they
nevertheless propose a mitigation measure that eliminates the source of the
screen failure, which they will implement if FERC deems mitigation necessary.

     Looking beyond the numerical content of the analyses, a broader,
qualitative review of the Merger and the other restructuring efforts by ComEd
and PECO supports the conclusion that the Merger should be approved with little
or no mitigation. Horizontally, ComEd has given up ownership of nearly half of
its generation in northern Illinois, a measure which addresses ComEd's position
in its own highly concentrated market. Although PECO owns substantial generation
in its own right, the newly merged system will own a portfolio of generation
that is approximately the same size as, but which is dispersed over a larger
area than, ComEd's pre-divestiture portfolio. In the competitive generation
market in which they operate, ComEd and PECO will continue to have little
ability or incentive to raise market prices. Further, within a relatively short
time-frame, ComEd's transmission operation and control area functions will be
turned over to the MISO, an independent regional organization that meets FERC's
                            -----------
standards./54/  PECO's transmission already is controlled by PJM.

     The Merger will not have any adverse impact on competition within the
nuclear power industry.  The nuclear power industry consists of a large number
of nuclear utilities and suppliers

___________________
/52/   See City of Holyoke v. SEC., supra at 363-64, quoting Wisconsin's
       --- -----------------------  -----            ------- -----------
       Environmental Decade v. SEC, 882 F.2d 523, 527 (D.C. Cir. 1989).
       ---------------------------

/53/   Dr. Hieronymus treats the 300 MW contract as increasing ComEd and PECO's
       concentration ratios in the ComEd destination market by virtue of the
       Merger during all hours (except peak periods when ComEd contractually
       retains control of the energy). In fact, however, the 300 MW Contract
       provides for delivery of the energy to the American Electric Power or
       Ameren destination markets. In the absence of Dr. Hieronymus'
       conservative treatment of the 300 MW contract, no destination market
       would fail the competitive screen analysis using the economic capacity
       measure.

/54/   ComEd may turn over its transmission assets to the control of an ITC
       which will operate with MISO oversight.

                                       28
<PAGE>

engaged in the purchase and sale of nuclear reactors, equipment, fuel and
services in a highly competitive worldwide market involving light water
reactors, heavy water reactors, gas cooled reactors and other types of power
reactors. The combined nuclear operating fleet of ComEd and PECO, consisting
entirely of light water reactors, will have a generating capacity of
approximately 14,000 MW, representing only 4.6% of the installed worldwide
generating capacity of approximately 301,700 MW for light water reactors. Even
if PECO's share of the additional light water reactors owned and operated by, or
proposed to be acquired by, AmerGen, consisting of an additional 1,676 MW, is
included in these totals, the Genco fleet will represent only 5.2% of the
installed generating capacity. Because owners of nuclear plants worldwide are
potential customers for the products of nuclear suppliers and because of the
relatively small share of nuclear generating capacity that Genco will possess,
Genco will not be in a position to exert any anticompetitive influence on
nuclear suppliers. Accordingly, the "concentration of control" of the combined
nuclear operations of ComEd and PECO in Genco resulting from the Merger will not
be "of a kind or to an extent detrimental to the public interest or the
interests of investors or consumers."

          (b)  Section 10(b)(2) -- Merger Consideration and Fees

     Applicable Standard.  Section 10(b)(2) precludes approval of an
     -------------------
acquisition if the consideration to be paid in connection with the combination,
including all fees, commissions and other remuneration, is "not reasonable or
does not bear a fair relation to the sums invested in or the earning capacity of
 . . . the utility assets underlying the securities to be acquired."  The
Commission has found "persuasive evidence" that the standards of Section
10(b)(2) are satisfied where, as here, the agreed consideration for an
acquisition is the result of arm's-length negotiations between the managements
of the companies involved, supported by opinions of financial advisors./55/

     First, the Merger is a merger of equals, with the former Unicom
shareholders holding about 46% and the former PECO shareholders holding
approximately 54% of the shares of Exelon.

     Second, as explained in the Joint Proxy Statement (Exhibit C-2 hereto), the
historical price data for Unicom and PECO common stock provide support for the
consideration of 0.875 shares of Exelon common stock and $3.00 in cash for each
share of Unicom common stock and one share of Exelon common stock for each share
of PECO common stock.

     Third, the merger consideration is the product of extensive and vigorous
arm's-length negotiations between Unicom and PECO.  These negotiations were
preceded by extensive due diligence, analysis and evaluation of the assets,
liabilities and business prospects of each of the respective companies.  This
process is described in "Background of the Merger" in the Joint Proxy Statement.
As recognized by the Commission in Ohio Power Co., Holding Co. Act Release No.
                                   --------------
16753 (June 8, 1970), prices arrived at through arm's-length negotiations are
particularly persuasive evidence that Section 10(b)(2) is satisfied.

_____________________
/55/   See Southern Company, Holding Co. Act Release No. 24579 (Feb. 12, 1988);
       --- ----------------
       Consolidated Natural Gas Co., et al., Holding Co. Act Release No. 25040
       -----------------------------------
       (February 14, 1990).

                                       29
<PAGE>

     Fourth, nationally recognized independent investment bankers have reviewed
extensive information concerning PECO and Unicom, analyzed the merger
consideration employing a variety of valuation methodologies, and ultimately
opined that the merger consideration is fair to the respective holders of Unicom
common stock and PECO common stock as of January 7, 2000,  the date of the
amendment to the Original Merger Agreement which resulted in the Merger
Agreement and the final merger consideration.  The investment bankers' analyses
are described in detail and their opinions are included in full in the Joint
Proxy Statement.  The assistance of independent consultants in setting
consideration has been recognized by the Commission as evidence that the
requirements of Section 10(b)(2) have been met.  Southern Company, supra; and SV
                                                 ----------------  ------     --
Ventures, Inc., Holding Co. Act Release No. 24579 (Feb. 12, 1988).
- --------------

     Finally, submitting the Merger for approval by the shareholders of both
Unicom and PECO will provide additional assurance that the prices paid are
reasonable.

     Fees and Expenses.  A further consideration under Section 10(b)(2) is the
     ------------------
overall fees, commissions and expenses to be incurred in connection with the
Merger.  Unicom and PECO believe that these items are reasonable and fair in
light of the size and nature of the Merger relative to other utility mergers and
acquisitions. The anticipated benefits of the Merger to the public, investors
and consumers are consistent with recent precedent and meet the standards of
Section 10(b)(2).

     As set forth in Item 2 of this Application-Declaration, Unicom and PECO
together expect to incur a combined total of approximately $87.4 million in
fees, commissions and expenses in connection with the Merger, including the fees
of financial and other advisors. AEP and Central and South West Corporation have
represented that they expect to incur total transaction fees and regulatory
processing fees of approximately $53 million in connection with their proposed
merger. New Century Energies and Northern States Power incurred an estimated
$43.7 million in fees in connection with their proposed merger. The Cincinnati
Gas and Electric Company and PSI Resources incurred $47.12 million in fees in
connection with their reorganization as subsidiaries of CINergy; Northeast
Utilities alone incurred $46.5 million in fees and expenses in connection with
its acquisition of Public Service of New Hampshire; and Entergy alone incurred
$38 million in fees in connection with its acquisition of Gulf States
Utilities--which amounts all were approved as reasonable by the Commission./56/

     The Applicant believes that the estimated fees and expenses in this matter
bear a fair relation to the value of their respective companies and the benefits
to be achieved by the Merger, and further that the fees and expenses are fair
and reasonable in light of the size and nature of the Merger.  See Northeast
                                                               --- ---------
Utilities, supra (noting that fees and expenses must constitute normal costs and
- ---------  -----
represent a minor part of the overall acquisition).  Based on the closing prices
of Unicom and PECO common stock on September 21, 1999, which was the day prior
to the original announcement of the transaction, the Merger would be valued at
approximately $18 billion.  The total estimated fees and expenses of $87.4
million represent approximately 0.49% of the value of the consideration to be
paid, and are consistent with percentages previously approved by the Commission.
See, e.g., Entergy Corp., supra (fees and expenses represented
- ---  ----  ------- -----  -----

____________________
/56/   CINergy, Holding Co. Act Release No. 26146 (Oct. 21, 1994); Northeast
       -------                                                     ---------
       Utilities, Holding Co. Act Release No. 25548 (June 3, 1992); and Entergy
       ---------                                                        -------
       Corp., Holding Co. Act Release No. 25952 (Dec. 17, 1993).
       -----

                                       30
<PAGE>

approximately 1.7% of the value of the consideration paid to the shareholders of
Gulf States Utilities); Northeast Utilities, supra (fees and expenses
                        -------------------  -----
represented approximately 2% of the value of the assets to be acquired).

          (c)  Section 10(b)(3) -- Complicated Capital Structure; No Detriment
               to Protected Interests

     Applicable Standard.  Section 10(b)(3) requires the Commission to determine
     -------------------
whether the Merger will "unduly complicate the capital structure" or be
"detrimental to the public interest or the interest of investors or consumers or
the proper functioning" of the Exelon system.

     Exelon's Capital Structure.  The capital structure of Exelon will be
     --------------------------
substantially similar to capital structures approved by the Commission in other
orders./57/ Exelon's capital structure will also be similar to the capital
structures of existing registered holding company systems. The shareholders of
Unicom and PECO will each receive Exelon common stock. Exelon will own directly
or indirectly 100% of the common stock of PECO, Genco, the Indiana Company and
the Conowingo Companies, and there will be no minority common stock interest in
any of those companies. Exelon will own virtually all (over 99%) of the common
stock of ComEd. The very small outstanding amount of ComEd common stock not
owned by Exelon relates to outstanding warrants and convertible preferred stock
of ComEd which converts into ComEd common stock. Although Unicom has had a
standing exchange offer whereby it will exchange for Unicom common stock any
ComEd common stock issued on the exercise of these warrants or convertible
preferred stock, some shareholders have failed to take advantage of the offer.
Exelon expects to continue to make available a similar exchange offer post
merger./58/ Consequently, there will be no disadvantage to those few holders of
ComEd common stock as a result of the transactions. They will be able to
exchange their ComEd common stock for Exelon common stock at any time.

     Although Exelon will have an authorized class of preferred stock, there are
no current plans to issue any Exelon preferred stock.  Exelon will have the
ability to issue, subject to the approval of the Commission, preferred stock,
the terms of which may be set by Exelon's Board of Directors.  See, e.g.,
                                                               ---  ----
Columbia Gas System, Inc., Holding Co. Act Release No. 26361 (Aug. 25, 1995)
- -------------------------
(approving restated charter, including authorization to issue preferred stock
the terms of which, including voting rights, can be established by the board of
directors).  The only outstanding class of voting securities of Exelon's direct
non-utility subsidiaries will be common stock and, in each case, all issued and
outstanding shares of such common stock will be held by Exelon (except as noted
in Exhibits I-1 and I-2).

     The existing debt securities and preferred stock of ComEd and PECO will
remain outstanding without change.

________________________

/57/  See, e.g., Ameren Corporation, Holding Co. Act Release No. 26809 (Dec.
      ---  ----  ------------------
      30, 1997); CINergy Corp; Holding Co. Act Release No. 26934 (Nov. 2, 1998);
                 ------------
      and Centerior Energy Corp., Holding Co. Act Release No. 24073 (April 29,
          ----------------------
      1986).

/58/  Exelon will seek the necessary approval for such exchange in a separate
      Application-Declaration covering its financing needs following the Merger.

                                       31
<PAGE>

     Set forth below are summaries of the capital structures of Unicom and PECO
as of December 31, 1999, and the pro forma combined consolidated capital
structure of Exelon (assuming the Merger occurred on December 31, 1999):

                 Unicom and PECO Historical Capital Structures
                             (dollars in millions)

                                         Unicom              PECO
                                         ------              ----

          Common stock equity           $ 5,333             $1,773
          Preferred stock                   352                321
          Long-term debt                  7,130              5,969
          Short-term debt/15/               742                291
                                        -------             ------
          Total                         $13,557             $8,354
                                        =======             ======

                Exelon Pro Forma Consolidated Capital Structure
                       (dollars in millions)(unaudited)

          Common stock equity                     $ 6,506
          Preferred stock                             673
          Long-term debt                           13,599
          Short-term debt/59/                       1,333
                                                  -------
          Total                                   $22,111
                                                  =======

     Exelon's pro forma consolidated common equity to total capitalization ratio
of 29.4% is at the "traditionally acceptable 30% level."/60/ Accordingly, the
Merger will not unduly complicate the capital structure of the resulting holding
company.

     No Detriment to Protected Interests.  Section 10(b)(3) also requires the
     -----------------------------------
Commission to determine whether the proposed combination will be detrimental to
the public interest, the

_______________________

/59/  Includes current portion of long-term debt.

/60/  Northeast Utilities, Holding Co. Act Release No. 25221 (Dec. 21, 1990);
      -------------------
      Exemption of Issuance and Sale of Certain Securities by Public-Utility
      ----------------------------------------------------------------------
      Subsidiary Companies of Registered Public-Utility Holding Companies,
      -------------------------------------------------------------------
      Holding Company Act Release No. 25573 (July 7, 1992). Under section
      7(d)(1) of the Act, the Commission generally has required a registered
      holding company system and its public-utility subsidiaries to maintain no
      more than a 65/30 debt/common equity ratio, with the balance generally
      being preferred equity. Such debt/equity capitalization requirement was
      included in rule 52, as originally adopted, as applied to securities
      issued by public-utility subsidiaries, but was eliminated in 1992. Several
      extraordinary events in recent years involving write-offs related to
      utility restructuring have resulted in lower than historical levels of
      retained earnings at Unicom and PECO. The companies expect that Exelon's
      common stock ratio will improve after the merger. See Unaudited Pro Forma
      Combined Condensed Financial Statements in the Form S-4 Registration
      Statement filed as an exhibit hereto.

                                       32
<PAGE>

interests of investors or consumers or the proper functioning of the combined
Exelon system. The combination of Unicom and PECO is entirely consistent with
the proper functioning of a registered holding company system. The utility
operations of ComEd, the Indiana Company, PECO, Genco and the Conowingo
Companies will be (a) effectively interconnected by means of available open
access transmission capacity, (b) economically operated under normal conditions
as a single, coordinated system, through Genco's centralized generation and
marketing function and (c) confined to a single area or region in northern
Illinois and eastern Pennsylvania which is not so large as to impair
(considering the state of the art) localized management, efficient operation and
effective regulation. Further, the combination will result in substantial,
otherwise unavailable, savings and benefits to the public and to consumers and
investors of both companies, and the integration of ComEd, the Indiana Company,
PECO, Genco and the Conowingo Companies will improve the efficiency of their
respective systems.

Finally, consummation of the Merger is conditioned upon receipt of all necessary
State and Federal regulatory approvals.  These regulatory approvals will assure
that the interests of retail customers and wholesale customers are adequately
protected.  FERC's approval will provide assurances that there is no significant
adverse effect on competition, no adverse effect on wholesale rates, and no
adverse effect on Federal and State regulation.  Moreover, as noted by the
Commission in approving Entergy's acquisition of Gulf States Utilities,
"concerns with respect to investors' interests have been largely addressed by
developments in the Federal securities laws and the securities market
themselves."/61/ Exelon, ComEd and PECO will be reporting companies subject to
the continuous disclosure requirements of the Securities Exchange Act of 1934,
as amended ("1934 Act") following the completion of the Merger.  The various
reports previously filed by Unicom, ComEd and PECO under the 1934 Act contain
readily available information concerning the Merger.  For these reasons, the
Applicant believes that the Merger will be in the public interest and the
interest of investors and consumers and will not be detrimental to the proper
functioning of the resulting holding company system.

     3.   Section 10(c) -- Sections 8 and 11; Integration

     Section 10(c) of the Act provides that, notwithstanding the provisions of
Section 10(b), the Commission shall not approve:

     .    an acquisition of securities or utility assets, or of any other
          interest, which is unlawful under the provisions of Section 8 or is
          detrimental to the carrying out of the provisions of Section 11; or

     .    the acquisition of securities or utility assets of a public utility or
          holding company unless the Commission finds that such acquisition will
          serve the public interest by tending towards the economical and the
          efficient development of an integrated public-utility system.

____________________

/61/  Entergy Corp., Holding Co. Act Release No. 25952 (Dec. 17, 1993).
      -------------

                                       33
<PAGE>

        (a)  Section 10(c)(1) -- Sections 8 and 11

             (i)    The Merger will be lawful under Section 8

     Section 10(c)(1) first requires that the Merger be lawful under Section 8.
That section was intended to prevent holding companies, by the use of separate
subsidiaries, from circumventing State restrictions on common ownership of gas
and electric operations.  The Merger will not result in any new situations of
common ownership - so-called "combination" systems  - within a given State.
ComEd has provided, and will continue to provide, only electric service and only
in Illinois.  PECO will continue to provide electric service only in and around
Philadelphia, Pennsylvania and, as it has for many years, also provide gas
distribution services in southeastern Pennsylvania.  Because Pennsylvania law
does not prohibit combination gas and electric utilities serving the same area,
the Merger does not raise any issue under Section 8 or the first clause of
Section 10(c)(1).

     Additional assurances are expected to be provided in connection with PECO's
application for merger approval filed before the Pennsylvania Commission.  In
its Pennsylvania application PECO has requested that the Pennsylvania Commission
find that the proposed combination "is [not] likely to result in anticompetitive
or discriminatory conduct, including the unlawful exercise of market power,
which will prevent retail [gas] customers in this Commonwealth from obtaining
the benefits of a properly functioning and workable competitive retail [natural
gas] market," as required by the Pennsylvania Natural Gas Competition Act./62/ A
favorable finding by the Pennsylvania Commission will provide the Commission
additional assurance that the requirements of Section 8 of the Act have been
satisfied.

             (ii)   The Merger Is Not Detrimental to Carrying Out Provisions of
                    Section 11

     Section 10(c)(1) also requires that the Merger not be "detrimental to the
carrying out of the provisions of Section 11."  Section 11(b)(1) directs the
Commission generally to limit a registered holding company "to a single
integrated public-utility system" and permitted "additional" systems.  Because
the combination of ComEd, PECO and Genco will result in a single, integrated
electric utility system (the "Exelon Electric System") and Exelon will hold a
permitted additional gas-utility system, the Merger will in no way be
detrimental to carrying out the provisions of Section 11.

                (A) The Utility Systems Created by the Merger

     The Merger will result in the combination of the electric systems of ComEd
and PECO, which as noted operate primarily in only two States. ComEd and PECO
will transfer their generating assets to Genco.  Genco will provide power to
ComEd and PECO pursuant to FERC approved power purchase agreements. Genco will
be able to provide power to ComEd's traditional retail bundled load, to PECO's
traditional bundled or provider of last resort load, and to other wholesale and
retail customers of Exelon on an economical and efficient basis.  As the single,
central controlling entity for all the electric generation of the Exelon
Electric System, Genco will be able to balance the supply it controls with the
needs of the Exelon Electric System

_______________________

/62/  66 Pa. C.S. (S) 2210 (1999).

                                       34
<PAGE>

and off-system opportunities. Through the ComEd and PECO transmission
facilities, as well as the open access transmission capacity available to
Exelon, Genco will be able to move power as needed from Exelon's generating
resources to those customers.

     The gas distribution facilities of PECO are and have been for many years a
single, integrated gas utility system (the "Exelon Gas System").  Consequently,
the Commission should find that the Exelon Electric System will be the primary
integrated public-utility system for purposes of Section 11(b)(1), and that the
Exelon Gas System is a permissible additional system under the A-B-C clauses of
that section.

               (B) Statutory Standard -- Integration of Electric Operations In
                   Today's Environment

     The electric system of ComEd can be combined with the electric operations
of PECO and Genco to form a single integrated electric public-utility system.
The term, as applied to electric utility companies, means:

     a system consisting of one or more units of generating plants
     and/or transmission lines and/or distributing facilities, whose
     utility assets, whether owned by one or more electric utility
     companies, are physically interconnected or capable of physical
     interconnection and which under normal conditions may be
     economically operated as a single interconnected and coordinated
     system confined in its operations to a single area or region, in
     one or more States, not so large as to impair (considering the
     state of the art and the area or region affected) the advantages
     of localized management, efficient operation, and the
     effectiveness of regulation.

Section 2(a)(29)(A).  As the definition suggests, and the Commission has
observed, Section 11 is not intended to impose "rigid concepts" but rather
creates a "flexible" standard designed "to accommodate changes in the electric
utility industry."/63/ Section 2(a)(29)(A) expressly directs the Commission to
consider the "state of the art" in analyzing the integration requirement.  As
indicated above, the Commission is not constrained by its past decisions
interpreting the integration standards based on a different "state of the art."
See AEP, supra (noting that the state of the art -- technological advances in
- --- ---  -----
generation and transmission, unavailable thirty years prior -- served to
distinguish a prior case and justified "large systems spanning several states.")

     The ultimate determination under Section 11 of the Act has always been
whether, on the facts of a given matter, the proposed transaction "will lead to
a recurrence of the evils the Act

__________________________

/63/  UNITIL Corp., Holding Co. Act Release No. 25524 (April 24, 1992); see
      ------------                                                      ---
      also Yankee Atomic Electric. Co., Holding Co. Act Release No. 13048 (Nov.
      ---- ----------------------------
      25, 1955) ("We think it is clear from the language of Section 2(a)(29)(A),
      which defines an integrated public-utility system, that Congress did not
      intend to imposed [sic] rigid concepts with respect thereto.") (citations
      omitted); and see also Madison Gas and Electric Company v. SEC, 168 F.3d
                    -------- ---------------------------------------
      1337 (D.C. Cir. 1999) ("section 10(c)(1) does not require that new
      acquisitions comply to the letter with section 11"). The Commission
      interprets the 1935 Act and its integration standards "in light of....
      changed and changing circumstances." Sempra Energy, Holding Co. Act
                                           -------------
      Release No. 26971 (Feb. 1, 1999) (interpreting the integration standards
      of the 1935 Act in light of developments in the gas industry). Accord,
      NIPSCO.
      ------

                                       35
<PAGE>

was intended to address."/64/ As shown by this Application-Declaration, the
combination of Unicom and PECO will in no way lead to a recurrence of the
problems the Act was designed to eliminate. In the following section, this
Application-Declaration describes how the Exelon electric system will meet all
of the four requirements of integration set out in the Act.

            (iii) Exelon Will Meet All Four Parts of the Integration Requirement
                  of the Act.

     ComEd and PECO intend to integrate their operations in the most economic
manner possible, consistent with State and FERC regulatory requirements, to take
full advantage of the opportunities available to produce and distribute power at
lower cost for the benefit of its customers and shareholders.  The following
summarizes the factors establishing integration:

     .   Centralized Generation Function. Genco will coordinate the efficient
         --------------------------------
         use of the generation formerly held by ComEd and PECO for the benefit
         of the Exelon Electric System. The creation of Genco is made possible,
         in part, by the passage of utility regulation restructuring legislation
         in Illinois and Pennsylvania.

     .   Centralized Operations Function. Genco will coordinate the economic
         -------------------------------
         dispatch of all generation and, together with one or more specialized
         operating subsidiaries, will coordinate the efficient functioning of
         Exelon's entire electric utility operations -- including transmission
         and distribution systems. As the industry moves to a competitive model,
         to the extent the regulated distribution functions continue to be
         energy suppliers, they will increasingly look to all potential sources
         of generation in the market. Genco will be able to supply power to its
         affiliates and to non-affiliated customers.

     .   Centralized Nuclear Operations Function. The safe and efficient
         ----------------------------------------
         operation of all of Exelon's nuclear generating stations will be
         coordinated through a centralized function which will adopt best
         practices and gain efficiencies through concentrated efforts.

     .   Centralized Administrative Function. Exelon Services Company will be
         -----------------------------------
         formed to oversee all centralized corporate and administrative
         services. Exelon, with corporate headquarters in Chicago, Illinois,
         will coordinate utility operations functions with facilities in Chicago
         and Philadelphia, Pennsylvania. ComEd and PECO will maintain the
         benefits of localized management through local offices throughout their
         service areas. Exelon's utility subsidiaries will remain fully subject
         to applicable State and Federal public utility regulation, which will
         not be adversely affected by the Merger.

     .   Centralized Interconnection Management.  Exelon will effectuate the
         --------------------------------------
         coordinated operations of its generation, transmission and distribution
         functions through Genco's administration of transmission
         interconnections sufficient to ensure that the benefits of the
         centralized control and dispatch of generating assets are realized.
         Exelon will

_______________________

/64/ Union Electric, supra.
     --------------  -----

                                       36
<PAGE>

          be interconnected through the transmission facilities of ComEd and
          PECO and extensive interstate open access transmission capacity.
          Exelon will have the legal right under the OATTs to move power
          economically to customers as needed in amounts sufficient to meet its
          operating needs throughout the Exelon system. Because of legal and
          operating changes in transmission made within the last five years,
          Exelon will be one of the first companies to be able to operate in an
          interconnected and coordinated manner --under normal conditions -- by
          use of OATTs. Exelon believes the use of a flexible array of firm and
          non-firm transmission reservations available through the OATTs is
          sufficient under the Act, and is the best and most economical way, to
          achieve the interconnection necessary to establish integration. The
          reservation of a single end-to-end, all hours firm contract path will
          not add any significant increased capacity, availability, flexibility
          or reliability to Exelon's interconnections; but will add cost.
          However, to the extent the Commission deems it necessary under the
          Act, Exelon will procure a 100 MW firm transmission path as described
          herein to be part of its interconnection resources.

     .    Size; Single Area or Region. Exelon will not be too large. Given the
          ----------------------------
          "state of the art," Exelon will be sufficiently large to compete
          effectively in today's electric utility industry. Given the operating
          and regulatory structure of today's industry, and the fact that Genco
          will coordinate all generating facilities and one or more service
          companies will coordinate all operations, Exelon will be confined to a
          single area or region within the meaning of the Act. ComEd and PECO
          have a five year history of economic power exchange transactions. The
          ability to economically interchange power, taking into account
          transmission cost, demonstrates that ComEd and PECO are in the same
          area or region. Further, Exelon's distribution areas -- surrounding
          Chicago and Philadelphia -- are homogeneous and have similar operating
          characteristics. Although the United States is electrically
                                                         ------------
          interconnected, only those utilities, such as Exelon, which can
          operate their separate utilities economically and in a coordinated
                                           ---------------------------------
          manner within the meaning of the Act can be considered to be in the
          ------------------------------------
          same area or region. This is not a case involving "scattered"
          properties prohibited by the Act.

     Changes brought about in the industry through State and Federal energy
restructuring and deregulation have produced a "state of the art" making a
combination like Exelon possible today under the standards of the Act.  This
Application-Declaration will show that the Merger fits squarely within existing
Commission precedent. Each of the four integration standards of Section
2(a)(29)(A) is discussed specifically below.

               (A) Interconnection

     The first requirement for an integrated electric utility system is that the
electric generation and/or transmission and/or distribution facilities
comprising the system be "physically interconnected or capable of physical
interconnection." Historically, the Commission has focused on physical
interconnection through facilities that the parties owned or, by specific
contract, controlled./65/ As early as 1978, however, -- well before the
developments creating a

____________________

/65/  See, e.g., Northeast Utilities, Holding Co. Act Release No. 25221 (Dec.
      ---  ----  -------------------
      21, 1990) ("Northeast Utilities") at n.74, supplemented, Holding Co. Act
      Release No. 25273 (Mar. 15, 1991), aff'd sub nom. City of Holyoke v. SEC.,
                                         --------------------------------------
      972 F.2d 358 (1992) (Northeast had the right to use a Vermont Electric
      line for ten years, with automatic

                                       37
<PAGE>

flexible, open access transmission grid -- the Commission considered the effect
of joint participation in a power pool as a basis for a finding of
integration./66/ To date, the Commission has found interconnection through
memberships in "tight" power pools and ISOs./67/ These findings are consistent
with the recommendation of the 1995 Report that the Commission "adopt a more
flexible interpretation of the geographic and physical integration standards,
with more emphasis on whether an acquisition will be economical and subject to
effective regulation."/68/

     The 1995 Report further recommended that the Commission should increasingly
rely on an acquisition's demonstrated economies and efficiencies, rather than
upon the physical interconnection of facilities, to meet the integration
standard./69/ The 1995 Report noted that the 1935 Act provides the necessary
flexibility to adjust the integration standards in light of changes in the
"state of the art."/70/ The 1995 Report concluded that it would be a logical
extension of prior orders for the Commission to find that wheeling and other
forms of sharing power (such as reliability councils and proposed regional
transmission groups) meet the statutory interconnection standard./71/

     It is important to note that the 1995 Report was issued before FERC's
issuance of Order No. 888. As summarized above in Item 3.A, and as described in
detail in the Interconnection Analysis included as Exhibit K-1 hereto, it was
              ------------------------
Order No. 888 which created the legal framework of practical access to the
transmission grid for all generators. Order No. 888 moved

________________________________________________________________________________

      two-year extensions, subject to termination upon two years notice, in
      order to provide power to a Northeast affiliate.); Centerior Energy Corp.,
                                                         ----------------------
      Holding Co. Act Release No. 24073 (April 29, 1986) (Cleveland Electric
      Illuminating Company and Toledo Edison Company were connected by a line
      owned by Ohio Edison. All three were members of the Central Ohio Power
      Coordination Group ("CAPCO"). The line connecting Cleveland Electric, Ohio
      Edison and Toledo was a CAPCO line with segments owned by each of the
      three named utilities.); Electric Energy, Inc., 38 SEC 658, 668-671 (1958)
                               ---------------------
      (the right to use a transmission line owned by a different company found
      sufficient to satisfy integration.); Cities Service Power & Light, Co., 14
                                           ---------------------------------
      SEC 28, 53 n.44 (1943) (two companies in the same holding company system
      were found to be interconnected where energy was transmitted between two
      separated parts of the system over a transmission line owned by the United
      States Bureau of Reclamation, under an arrangement which afforded the
      system the privilege of using the line).

/66/  See AEP, supra ("The pooling issue is one aspect of the major debate, ....
      --- ---  -----
      as to what should be the future structure of the electric utility
      industry. We will not undertake to resolve these issues since they are
      beyond our mandate in this case and because they are within the province
      of the Congress and the Department of Energy.").

/67/  UNITIL Corp., supra (interconnection through NEPOOL), and Conectiv, Inc.,
      ------------  -----                                       --------------
      Holding Co. Act Release No. 26382 (Feb. 25, 1998) (interconnection through
      PJM, Inc.). See also Yankee Atomic Elec. Co., 36 SEC 552, 565 (1955);
                  --- ---- ------------------------
      Connecticut Yankee Atomic Power Co., 41 SEC 705, 710 (1963) (authorizing
      -----------------------------------
      various New England companies to acquire interests in a commonly-owned
      nuclear power company and finding the interconnection requirement met
      because the New England transmission grid already interconnected the
      companies).

/68/  1995 Report, at 70

/69/  Id.
      --
/70/  Id. at 71.
      --

/71/  Id.
      ---

                                       38
<PAGE>

"open access" from a "case-by-case" arrangement of individually negotiated
contracts to a standardized system where transmission is available on short
notice to all comers at a set price. If the 1995 Report were being written today
it seems reasonable to conclude that it would find that the current state of the
open access transmission system results in the "interconnection" of
participating utilities within the meaning of the Act. /72/

     The Commission in the past has found the interconnection requirement met
where the parties had a firm contract path. "The physical interconnection
requirements of [Section 2(a)(29)(A)] are met if the two service areas are
connected by power transmission lines that the companies have the right to use
whenever needed."/73/

     ComEd and PECO will be "physically interconnected or capable of physical
interconnection" through the open access transmission service which they "have
the right to use" by virtue of EPACT, FERC Order No. 888 and the applicable open
access tariffs of the utilities forming the paths between the two parts of the
Exelon Electric System. Genco will coordinate Exelon's access to transmission
services from several, redundant sources -- those unaffiliated transmission
providers which operate in the region where the Exelon Electric System will be
located.  These transmission providers are required to offer a wide variety of
highly flexible, time and quality differentiated services.  These services are
available under the providers' FERC mandated OATTs.  Service can be reserved and
scheduled by Genco by using readily available, easy to use, and redundant
communications systems.  Genco will be able to obtain the transmission services
that are required to connect the Exelon Electric System at just, reasonable and
nondiscriminatory rates, which by regulation, can be no higher than the rates
these unaffiliated transmission providers must charge themselves for their own
comparable transactions.  In effect, Genco will be able to control the movement
of power within the Exelon Electric System just as reliably and efficiently as
if all generation, transmission and distribution facilities of Genco, ComEd and
PECO were directly interconnected over Exelon owned facilities.

     Further, as detailed in the Interconnection Analysis, the legal rights
                                 ------------------------
encompassed in Order No. 888 and the open access tariffs of transmission owners
will provide a more comprehensive and reliable method of interconnection than
the single contract path relied upon in prior cases.  The transmission capacity
available through open access transmission tariffs is directly analogous to the
rights attendant to participation in a power pool.  In fact, the "right to use"
transmission afforded by OATTs is equivalent, in all respects essential to the
analysis under

______________________

/72/  See the 1995 Report at 71.
      ---

/73/  Centerior, supra (emphasis added). Dicta in a series of Commission
      ---------  -----
      decisions states that contract rights cannot be relied on to integrate two
      "distant" systems. See, e.g., WPL Holdings, Inc., Holding Co. Act Release
                         ---  ----  ------------------
      No. 26856 (April 14, 1998), citing UNITIL Corp., supra; Northeast
                                         ------------  -----  ---------
      Utilities, Holding Co. Act Release No. 25273 (March 15, 1991); Centerior
      ---------                                                      ---------
      Energy Corp., supra. In the Applicant's view, it would be incorrect to
      -------------------
      interpret these statements to mean that a firm contract path might not
      meet the "physical interconnection" requirement because of its length. In
      both UNITIL and Northeast Utilities, the Commission explained that the
           ------     -------------------
      reason a contract path might not "integrate" two distant utilities was due
      to the "single area or region" requirement of Section 2(a)(29)(A). UNITIL,
                                                                         ------
      supra at n.30; Northeast Utilities, supra at n.75. The Commission did not
      -----          -------------------  -----
      hold in any of these cases that the length of a firm contract path was
      relevant in determining whether the "physically interconnected or capable
      of physical interconnection" requirement of Section 2(a)(29)(A) was met.
      Such a holding would be contrary to the literal language of Section
      2(a)(29)(A).

                                       39
<PAGE>

the Act, to the rights associated with power pools which the Commission has
often, and recently, relied on for a finding of interconnection and the ability
to operate in a coordinated manner./74/

     In 1992, the Commission approved the merger of UNITIL Corporation with
Fitchburg Gas and Electric Light Company based on their common membership in the
New England Power Pool ("NEPOOL"), a regional power pool./75/ UNITIL and
Fitchburg were not connected through transmission lines that they owned. Rather,
as the Commission noted in its order:

          Access to and use of the regional transmission network, which
          ------------------------------------------------------
          is owned by the larger New England utilities, is provided by
          the NEPOOL Agreement and by transmission  rate schedules and
          contracts filed with the Federal Energy Regulatory Commission.

          In this matter, the Companies are indirectly interconnected
          through NEPOOL- designated transmission facilities ("PTF")
          and other nonaffiliated transmission facilities pursuant to
          the NEPOOL Agreement and other separate agreements with
          nonaffiliated companies.  The Commission has previously
          found a system to be "capable of physical interconnection"
          on the basis of contractual rights to use a third-party's
          transmission lines.

          This matter differs from prior orders in that there will be
          no particular line through which transfers of power will be
          ------------------
          made among the Companies.  Instead, power will be delivered
                                     --------------------------------
          through a nonaffiliated system and a transmission charge
          --------------------------------------------------------
          will be paid to the owner of the facilities.  On the facts
          --------------------------------------------
          of this matter, the Commission is satisfied that the
          Companies' contractual arrangements for transmission
          service establish that the UNITIL electric system will
          satisfy the physical interconnection requirement of the
          Act. (emphasis added)/76/

     In 1998, based on UNITIL, the Commission found in Conectiv, Inc.,/77/ that
                       ------                          --------------
Delmarva Power & Light Company and Atlantic Energy, Inc. met the physical
interconnection

_____________________

/74/  E.g., Conectiv, Inc., Holding Co. Act Release No. 26832 (February 25,
      ----  --------------
      1998).

/75/  New England Power Pool, 79 FERC (P)61,374 (1997); New England Power Pool,
      ----------------------                            ----------------------
      83 FERC (P)61,045 (1998).

/76/  With respect to the "other separate agreements with nonaffiliate
      companies" described above, the Commission by footnote explained that
      Fitchburg obtained primary transmission service from New England Power
      Company ("NEPCO") under the NEPOOL Agreement and through NEPCO's FERC
      Tariff Number 3, which provided for non-firm service. The Commission went
      on to note that Fitchburg was eligible to use NEPCO's FERC Tariff No. 4
      should Fitchburg and UNITIL Power conduct more power sales or swaps. The
      interconnection found in these cases was therefore effected pursuant to
      FERC filed tariffs. Similarly, the FERC filed OATTs constitute tariffs
      pursuant to which Exelon will "have the right" to use intervening
      transmission facilities to conduct its coordinated operations.

/77/  Conectiv, Inc., Holding Co. Act Release No. 26832 (February 25, 1998).
      --------------

                                       40
<PAGE>

requirements of Section 2(a)(29)(A) through their common membership in PJM./78/
The Commission noted that Delmarva and Atlantic were not physically
interconnected, but:

               are interconnected through their undivided ownership
               interest in, and/or rights to use, the same regional
                                   -------------
               generation facilities and extra-high voltage transmission
               facilities, as well as through their contractual rights
                                                                ------
               to use the transmission facilities of other members of
               ------
               the PJM regional power pool. (emphasis added)/79/

     The language from UNITIL and Conectiv quoted above also describes the
                       ------     --------
arrangement which Exelon proposes.  All of the essential elements necessary for
the Commission's findings in those cases are present in this case:

     .  Exelon will use the tariffed transmission service available from others.

     .  Exelon will use "no particular line" but will be able to transmit power,
        for a tariffed charge, over the facilities of an unaffiliated person (or
        persons).

     .  Through the tariff, which each transmission owner must file with FERC,
        Exelon will have a legal right to obtain this service./80/
                           -----------

     Thus, under the clear precedent of UNITIL and Conectiv, the systems of
                                        ------     --------
ComEd and PECO will be "interconnected" within the meaning of the Act.

     Applicant believes that relying on numerous transmission service
reservations is a better, more flexible and more economical way of realizing
significant interchange capability -- better than a more traditional contract
path.  The open access approach increases the number of potential
interconnection options and allows the flexible use of less expensive non-firm
products where appropriate while providing a high level of assurance that
transmission capacity will be available when needed.  This flexible use of the
transmission grid also enhances competition by more efficiently utilizing
transmission resources.  When combined, ComEd and PECO will continue to develop
and refine this open access approach, and make other changes necessary to meet
anticipated needs in the short-, medium- and long-term markets.  The open access
approach, therefore, will promote the public interest and benefit consumers and
shareholders.

     The model of single contract path or single line interconnection as a means
of establishing integration that has characterized past Commission decisions was
developed in an industry characterized by the almost universal feature of
vertically integrated electric utilities.  This industry structure, particularly
the absence of open access transmission, made it impossible for two merging
companies to force a utility which controlled transmission in the area between
them to provide transmission on an economic or reasonable basis.  Thus, it was
practically

_________________________

/78/  Pennsylvania -- New Jersey -- Maryland Interconnection, 81 FERC (P)
      ------------------------------------------------------
      61,257 (1998).  PJM is a regional power pool and the first, FERC-approved,
      operational ISO.

/79/  Conectiv, Inc., Holding Co. Act Release No. 26832 (February 25, 1998).
      --------------

/80/  See the Interconnection Analysis included as Exhibit K-1 for a detailed
      description of how OATTs will allow Exelon to transmit power.

                                       41
<PAGE>

impossible to arrange for more than minimal interties. The best compromise was
limited capacity, individually-negotiated contract paths. The capacity and
duration were often limited because it was not economic to arrange for greater
capacity or duration. Similarly, when utilities were able to construct new
interties between their areas, these were also often limited in size because of
economic constraints.

     As described above and in the Interconnection Analysis in Exhibit K-1, with
                                   ------------------------
the advent of EPACT and FERC Order No.  888,  an intervening utility is now
obligated to provide available transmission capacity and, if there is
insufficient capacity, are obligated to offer to construct additional
transmission.  These changes in the law, and more importantly the resulting
development of a robust market for transmission services -- which will only be
enhanced in the future as a result of the development of existing and future
RTO's -- have enabled a far superior method of providing for economic
coordination of electric utilities.  These developments allow utilities to
obtain a balanced portfolio of transmission capacity over multiple paths, with
various degrees of firmness, providing for various amounts of capacity which can
be designed by the holding company system to enhance its optimal integrated
operations.  Today, superior interchange ability can be achieved via a portfolio
of short-term firm and non-firm transmission at a lower all-in cost than the
more limited, rigid, single firm contract path.

     The feasibility of transmitting power from the ComEd electric system to the
PECO electric system is clearly demonstrated by the actual recent operations of
the companies.  ComEd and PECO have engaged in power sales arrangements since
1996.  PECO has been able to move this power to Pennsylvania for its use through
various firm and non-firm open access transmission arrangements.  Details
regarding the power transferred under these arrangements are included in the
Interconnection Analysis in Exhibit K-1.
- ------------------------

               (B) The Contract Path

     Exelon believes that the required electrical interconnection can be
established without a firm path, and that its ability to operate economically
under normal conditions as a single interconnected and coordinated (integrated)
system will be enhanced through the use of an array of firm and non-firm open
access transmission reservations as presented in this Application-
Declaration./81/

     Nevertheless, if the Commission finds it necessary to more fully establish
the integration of the Exelon Electric System, for three years following
consummation of the Merger, ComEd and PECO will procure a firm contract for a
100 MW unidirectional path from ComEd to PECO.  If required, Exelon will procure
this transmission capacity through one or a combination of three alternative
paths that are available.  The path may be:

     .  ComEd to American Electric Power to First Energy to PJM
     .  ComEd to American Electric Power to Virginia Electric Power to PJM; or
     .  ComEd to American Electric Power to Allegheny Power System to PJM.

_______________________

/81/  If the Commission requires Exelon to establish the 100 MW firm contract
      path, this path will be used as a part of the overall portfolio of
      transmission arrangements that Exelon will use to conduct its coordinated
      operations following the Merger.

                                       42
<PAGE>

     As noted in the Interconnection Analysis, Exelon believes that there is
                     ------------------------
sufficient available transmission capacity to allow Exelon to economically
reserve this 100 MW path on a firm basis for a period of 3 years following the
Merger.  Further, because the transmission owners listed above are obligated
under their OATTs to provide this service, if available, at their tariffed
rates, Exelon can be assured that it will have the ability to procure the needed
service at a reasonable price./82/

     Applicant notes that the Commission has in the past declined to require a
holding company system to build an additional line or otherwise increase
physical interconnections when no economic benefit would be derived from such
action./83/  Applicant submits that an inflexible requirement for a specific
contract path falls within this precedent -- requiring a fixed, firm contract
path would be uneconomical -- and the Commission should rely on the dynamic
operation of the transmission grid and OATTs to make the finding of
interconnection of the Exelon system./84/

               (C) Coordination

     Coordination of Generation.  Historically, the Commission has interpreted
     ---------------------------
the requirement that an integrated electric system be economically operated
under normal conditions as a single interconnected and coordinated system, "to
refer to the physical operation of utility assets as a system in which, among
                                                                        -----
other things, the generation and/or flow of current within the system may be
- ------------
centrally controlled and allocated as need or economy directs."/85/ The
Commission has noted that, through this standard, Congress "intended that the
utility properties be so connected and operated that there is coordination among
all parts, and that those parts bear an integral operating relationship to one
another."/86/

_____________________

/82/  PECO has made an OASIS request on the AEP transmission system for 100 MW
      for the period 2001, 2002, and 2003 with a Point-of-Receipt (POR) of ComEd
      and a Point-of-Delivery (POD) of Virginia Power (VP). As of March 1, 2000,
      the request had not yet been accepted by AEP. No other requests have been
      made. However, PECO currently has firm rights to 820 MW of VP transmission
      with a POR of AEP and a POD of PJM for the year 2000. It is expected that
      PECO will exercise its right of "rollover" on this transmission
      reservation, subject to Section 2.2 of the Virginia Power Open Access
      Transmission Tariff. With respect to the PJM leg of any firm path it would
      obtain, it is expected that Exelon will rely on the right PECO Energy will
      have as a Load-Serving Entity to use "Secondary Service" as defined by
      Section 28.4 of the PJM Open Access Transmission Tariff rather than obtain
      from PJM 100 MW of firm point-to-point transmission service. If required
      by the Commission to obtain 100 MW of firm point-to-point service, then a
      request for such service will be made on the PJM OASIS at an appropriate
      time. With respect to the ComEd leg of any firm path Exelon would obtain,
      Exelon would make a reservation for such transmission service at an
      appropriate time.

/83/  UNITIL, supra, at note 29; Electric Energy, Inc., 38 SEC 658, 669 (1953)
      ------  -----              ---------------------
      (direct interconnection not required in circumstances which would have
      resulted in an uneconomic duplication of transmission facilities.)

/84/  See the Interconnection Analysis for information regarding the cost of a
      firm contract path.

/85/  See, e.g. Conectiv, supra, citing The North American Company, Holding Co.
      ---  ---- --------  -----         --------------------------
      Act Release No. 3466 (April 14, 1942), aff'd, 133 F.2d 148 (2d Cir. 1943),
                                             -----
      aff'd on constitutional issues, 327 U.S. 686 (1946) (emphasis supplied).
      ------------------------------
/86/  Id., (citations omitted).
      ---

                                       43
<PAGE>

     Traditionally, the most obvious indicia of "coordinated operations" was the
ability to engage in "automatic central dispatch" or "joint economic dispatch."
A single controller would determine which generating units should run at what
time to achieve the lowest overall cost of generation.  For this to work, all
generating resources had to be interconnected with the distribution system.

     It is clear from the language of the Act and Commission precedent that
central or joint dispatch is not per se a requirement for a finding of
coordinated operations./87/ Central dispatch was a means to accomplish the
                                                   -----
efficient "coordinated" operations required by the Act not an end in itself.
                                                              ---
Applicant submits that the need for joint economic dispatch that the Commission
has historically focused on reflects a past structure of the industry and
regulatory requirements. So-called "single system" dispatch and committed
bilateral power exchanges are not required by the explicit terms of the statute
and, indeed, may be inconsistent with regulatory requirements and the economical
and efficient operation of large systems. In any event, the goals formerly
satisfied by centralized, coordinated dispatch are now met by employing market
mechanisms. Applicant submits that in today's environment, the coordination
requirement should be deemed satisfied if:

     .   utilities are able to achieve efficiencies through such measures as
         coordinated generation operations, even where such operations do not
         rise to the level of traditional "joint economic dispatch" within a
         single control area;

     .   utilities are able to coordinate cost-effective transmission of power
         to loads by using open access to transmission; and

     .   utilities engage in coordinated marketing efforts, both as a buyer and
         seller of electricity and integrate other functions including
         administrative and general services and programs.

     These factors are consistent with the requirements of the Act. Applicant
will not use traditional joint automatic economic dispatch of the systems of
ComEd and PECO as do other registered systems that effectively operate as tight
power pools.  Given that ComEd and PECO are in separate "control areas," such
true automatic joint dispatch would not be feasible./88/

______________________

/87/  Electric Energy, Inc., 38 SEC 658 (1958); Cities Service Power & Light
      ---------------------                     ----------------------------
      Co., 14 SEC 28 (1943). In fact, the Commission has even held that a system
      ---
      could be deemed integrated even if power never flowed between two parts of
      the system. Environmental Action, Inc. v. SEC, 895 F.2d 1255 (9th Cir.
                  ---------------------------------
      1990). Environmental Action involved the acquisition by a holding company
             --------------------
      of an interest in an electric generating plant ("Plant"). The intervenors
      argued that the acquisition did not satisfy the standards of the 1935 Act
      because, among other things, the system's existing electric utility
      company ("UtilCo") had represented that it might purchase up to twenty
                                                 -----
      percent of Plant's capacity if and only if the price of such power was
      competitive in the market. The Court of Appeals noted that the UtilCo
      might not purchase any of Plant's output but, nonetheless, concluded that
      the Commission had correctly found that UtilCo and Plant could be operated
      as part of a coordinated system, within the meaning of the Act. Id. at
                                                                      ---
      1264-65, citing Electric Energy, Inc., Holding Co. Act Release No. 13871
                      ---------------------
      (Nov. 28, 1958) (the companies sponsoring the construction of a generating
      plant only pledged to buy any surplus energy remaining after the plant had
      supplied the needs of the major purchaser, a nonaffiliated government
      agency).

/88/  A control area is a portion of the transmission and distribution grid
      where electric control over the area's electric system is performed by one
      entity, usually the vertically integrated utility having the certificated

                                       44
<PAGE>

However, Exelon will centralize all its generating assets and activities in
Genco. Genco will provide power to ComEd and PECO as one of several competing
options to meet those companies' bundled load or provider of last resort load
obligations. Because of this organizational structure, Exelon will have no need
for the type of "joint operating agreement" that many registered public-utility
systems have. Those agreements are necessary to achieve integrated operations
among several separate subsidiary utility companies. In Exelon's case all
generation resources are controlled in a single entity.

     Further, under the Exelon system, each utility will be free -- indeed may
be required by the Illinois Commission or Pennsylvania Commission -- to seek
other sources of supply.  Genco may coordinate this effort for ComEd and PECO.
It can no longer be assumed that power from affiliates will be the lowest cost
source of supply. Because both Illinois and Pennsylvania have adopted retail
customer choice regimes, the energy portion of retail service is deregulated.
ComEd and PECO are no longer the monopoly provider of generation.  Accordingly,
coordination through market mechanisms (and not simply joint dispatch of owned
generation) will be the key means of achieving the efficiency objectives
previously attained through joint dispatch.

     The operation and coordination of the ComEd transmission system will
increasingly be performed by an ITC operating under the purview of the MISO,
just as PJM now operates PECO's transmission facilities. These RTOs will develop
all operating procedures and schedules, approve all transmission requests and
direct the operation of the transmission grid for all transmission users.  The
RTOs will also control maintenance and planning of all of the transmission
facilities within their respective areas.  This degree of coordination and
integration of transmission assets is comparable to that presented to, and
accepted by, the Commission in UNITIL and Conectiv./89/
                               ------     --------

     Genco will conduct marketing efforts, both as a buyer and seller, for the
Exelon system. System dispatchers at Genco will continually monitor the
generation needs and capacity of the ComEd and PECO systems. ComEd and PECO
already have the ability to reach common

________________________________________________________________________________

      service area corresponding with that portion of the grid. The operators of
      a control area ensure the constant balanced operation of the grid and
      directly control the output of all generation within the control area and
      also control the movement of power into and out of or across the control
      area. See the Interconnection Analysis in Exhibit K-1. Traditionally, the
                    ------------------------
      several electric utilities making up a registered holding company system
      acted as a single control area. Thus, it was possible for direct system-
      wide coordination of generation to achieve maximum efficiency of dispatch
      of generation. The Commission recognized early that much of the benefit of
      coordinated operations could be achieved even without centralized
      automatic dispatch through a single controller. Several cases refer to
      coordination of generation through voice communication. See, e.g.,
      Electric Energy, Inc., 38 SEC 658 (1958); Cities Service Power & Light
      --------------------                      ----------------------------
      Co., 14 SEC 28 (1943). With the increase in interchange sales between
      ---
      control areas, and the developing market for wholesale generation, it is
      now possible to achieve economic benefits equivalent to those achieved by
                              -----------------
      centralized automatic dispatch across areas that are not in the same
      control area. The elimination of the need to be in the same control area
      to achieve generation efficiencies is demonstrated by the development of
      RTOs. RTOs will assume much of the function of the control areas including
      control of the transmission grid and dispatching of generation within the
      RTO's area. See Conectiv, Inc., Holding Co. Act Release No. 26832
                      --------  ----
      (February 25, 1998) at n. 9. ("The PJM staff centrally forecasts,
      schedules and coordinates the operation of generating units, bilateral
      transactions and the spot energy market to meet load requirements.")

/89/  See also MISO Order, supra at n. 162 and n. 169.
                           -----

                                       45
<PAGE>

suppliers, purchasers, and trading hubs in various combinations. The rapidly
evolving wholesale power markets surrounding the energy industry will allow
Genco to operate its generation assets wherever located as a single system by
buying and selling power as the situation dictates to decrease the overall
production costs of the system. This method of operation will result in lower
available energy costs for the ComEd and PECO distribution functions and provide
Genco with an attractively priced product for other market sales. The diversity
of weather, time, fuel supply and localized economic conditions applicable to
the various generating assets will create opportunities to allocate resources
more efficiently.

     Coordination of Non-Operating Activities.  In applying the integration
     -----------------------------------------
standard, the Commission looks beyond simply the coordination of the generation
and transmission within a system to the coordination of other activities./90/
Recently, the Commission has found coordinated operational and administrative
functions to constitute "de facto" integration for exempt holding companies./91/
Moreover, the coordination of administrative functions and joint marketing
activities were crucial factors in the Commission's determination that the
coordination requirement was satisfied in Sempra and NIPSCO.
                                          ------     ------

     The combined system of Exelon will be coordinated in a variety of ways
beyond simply the coordination of the generation and transmission within the
system.  Among other things, administrative and general services will be
performed for the Exelon System by Exelon  Services.  Exelon may develop
additional service companies and/or Opcos to perform specialized functions.
Exelon will have a single accounting organization which will be managed by a
single team in one or more locations.  The coordination and integration of the
combined system is expected to be further achieved through the coordination and
integration of information system networks; customer service; procurement
organizations; organizational structures for power generation, energy delivery
and customer relations; and support services.

     Efficiency.  As indicated by the language of Section 2(a)(29)(A) that the
     -----------
coordinated system be "economically operated," the Commission further analyzes
whether the coordinated operation of the system results in economies and
efficiencies.  The question whether a combined system will be economically
operated under Section 10(c)(2) and Section 2(a)(29)(A) was

_______________________

/90/  See, e.g., General Public Utilities Co., Holding Co. Act Release No.
      --- ------ ----------------------------
      13116 (Mar. 2, 1956) (integration is accomplished through power
      dispatching by a central load dispatcher as well as through coordination
      of maintenance and construction requirements); Middle South Utilities,
                                                     -----------------------
      Inc., Holding Co. Act Release No. 11782 (Mar. 20, 1953), petition to
      ----
      reopen denied, Holding Co. Act Release No. 12978 (Sept. 13, 1955), rev'd
                                                                         -----
      sub nom. Louisiana Public Service Comm'n v. SEC, 235 F.2d 167 (5th Cir.
      -------  --------------------------------------
      1956), rev'd, 353 U.S. 368 (1957), reh'g denied, 354 U.S. 928 (1957)
             -----                       ------------
      (integration is accomplished through an operating committee which
      coordinates not only the scheduling of generation and system dispatch, but
      also makes and keeps records and necessary reports, coordinates
      construction programs and provides for all other interrelated operations
      involved in the coordination of generation and transmission); North
                                                                    -----
      American Company, Holding Co. Act Release No. 10320 (Dec. 28, 1950)
      ----------------
      (economic integration is demonstrated by the exchange of power, the
      coordination of future power demand, the sharing of extensive experience
      with regard to engineering and other operating problems, and the
      furnishing of financial aid to the company being acquired). See also
      NIPSCO, supra (functional merger of Bay States and NIPSCO gas supply
      ------  -----
      department through NIPSCO Services, "a service company subsidiary of
      NIPSCO that provides financial, accounting, tax, purchasing, natural gas
      portfolio management, and other administrative services to associate
      companies.")

/91/  Sierra Pacific Resources, Holding Co. Act Release No. 27054 (July 26,
      ------------------------
      1999).

                                       46
<PAGE>

recently addressed by the Court of Appeals in Madison Gas and Electric Company
                                              --------------------------------
v. SEC, 168 F.3d 1337 (D.C. Cir. 1999). In that case, the court determined that
- ------
in analyzing whether a system will be economically coordinated, the focus must
be on whether the acquisition "as a whole" will "tend toward efficiency and
economy." Id. at 1341. The Merger will meet this standard given the significant
          ---
savings and synergies and other benefits expected to result from the Merger.

     In short, all aspects of the combined system will be centrally and
efficiently planned and operated. As with other merger applications approved by
the Commission, the combined system will be capable of being economically
operated as a single interconnected and coordinated system as demonstrated by
the variety of means through which its operations will be coordinated and the
efficiencies and economies expected to be realized by the proposed
transaction./92/

               (D) Single Area or Region

     As required by Section 2(a)(29)(A), the operations of the Exelon Electric
System will be confined to a "single area or region in one or more States."
While the terms "area" and "region" are not defined in the 1935 Act, the "single
area or region" requirement does not mandate that a system's operations be
confined to a small geographic area or a single State./93/ The Commission has
specifically found that the combining systems need not be contiguous in order
for the requirement to be met./94/ Rather, the Commission has found that the
single area or region test should be applied flexibly when doing so does not
undercut the policies of the 1935 Act against "'scatteration' -- [that is,] the
ownership of widely dispersed utility properties which do not lend themselves to
efficient operation and effective state regulation."/95/  Conversely, utilities
which may be "efficiently and economically operated" in an integrated fashion,
and where effective State regulation is not hampered by such combination, should
be considered in the same area or region.

______________________

/92/  The savings, synergies and other benefits are discussed under Item
      3.B.3.(b).

/93/  In considering size, the Commission has consistently found that utility
      systems spanning multiple States satisfy the single area or region
      requirement of the 1935 Act. For example, the Entergy system covers
      portions of four States (Entergy, supra), the Southern system provides
                                        -----
      electric service to customers in portions of four States (Southern Co.,
                                                                ------------
      Holding Co. Act Release No. 24579 (Feb. 12, 1988)), and the principal
      integrated system of New Century Energies covers portions of five States
      (with all of its electric operations serving customers in six States). If
      New Century Energies merger with Northern States Power is approved, the
      new holding company will serve in 12 States ranging from Michigan and
      Minnesota to Colorado and Texas. As early as 1945, the Commission found
      that the operations of American Electric Power in seven States were
      confined to a single region or area. The AEP system spans about 425 miles
      from western Virginia to southern Michigan. American Gas and Electric Co.,
                                                  -----------------------------
      Holding Co. Act Release No. 6333 (Dec. 28, 1945). If approved, the
      combined system of AEP and Central and South West would encompass 11
      states and about 1,200 miles from the Rio Grande River at the Texas-Mexico
      border to the Blue Ridge area of Virginia. By contrast, Exelon's regulated
      utility operations will be primarily in only two States. Its main service
      areas, Chicago and Philadelphia, are about 750 miles apart.

/94/  See, e.g., Conectiv, supra; cf. New Century Energies, supra (integration
      ---  ----  --------  -----      --------------------  -----
      test was met where entities planned to build a 300-mile transmission line
      to interconnect the systems which operated in noncontiguous territories).

/95/  NIPSCO, supra (applying single area or region requirement with respect to
      ------  -----
      gas utility system); accord, Sempra, supra. In Gaz Metropolitan, Inc., the
                                   ------  -----     ----------------------
      Commission agreed that a single area or region could include areas across
      international borders.  Holding Co. Act Release No. 26170 (Nov. 23, 1994).

                                       47
<PAGE>

     In the 1995 Report, the Staff recommended that the Commission "interpret
the 'single area or region' requirement flexibly, recognizing technological
advances, consistent with the purposes and provisions of the Act" and that the
Commission place "more emphasis on whether an acquisition will be
economical."/96/ The Staff recognized that "recent institutional, legal and
technological changes . . . have reduced the relative importance of . . .
geographical limitations by permitting greater control, coordination and
efficiencies" and "have expanded the means for achieving the interconnection and
economic operation and coordination of utilities with noncontiguous service
territories."/97/ The 1995 Report also recognized that the concept of
"geographical integration" has been affected by "technological advances in the
ability to transmit electric energy economically over longer distances, and
other developments in the industry, such as brokers and marketers."/98/

     Importantly, there have been significant further developments since the
1995 Report which further reinforce the conclusions reached by the Staff at that
time. FERC Order No. 888 established and Order 2000 will further refine the open
access transmission system. In the words of the 1995 Report, these developments
dramatically changed the "relative importance of . . . geographical
limitations." In 1995, the Staff concluded that the "state of the art" had
"expanded the means for achieving the interconnection and economic operation and
coordination of utilities with noncontiguous service territories." With the
development of open access transmission, the nascent "means" of interconnection
seen by the Staff in 1995 have fully developed into more effective and
economical "means" by which Exelon may, under normal conditions, achieve the
economic operation and coordination of its utilities with noncontiguous service
territories as required by the Act.  As described in the Interconnection
                                                         ---------------
Analysis, there is a significant volume of interchange of electric power through
- --------
the corridor of major transmission lines running from the Chicago area generally
through Indiana, Ohio and the Virginias to southeastern Pennsylvania.  The
following table gives information regarding transactions over the three-year
period ending in 1999:


<TABLE>
<CAPTION>
Year                  Total MWh Delivered to PECO
- ----                  ---------------------------
<S>                   <C>
1997                          1,552,456
1998                            456,623
1999                          1,111,613
</TABLE>

     The decline in 1998 was the result of increased need for power in the ComEd
service area.
_______________________

/96/  1995 Report at 66, 69.
      -----------

/97/  1995 Report at 69.
      -----------

/98/  Id.
      ---

                                       48
<PAGE>

     ComEd and PECO have demonstrated through their existing utility operations
that it is physically possible and, as importantly, economically possible, for
Exelon to conduct its business in a coordinated manner through the use of this
available transmission. Although open access transmission is available to all
utilities, only those utilities, such as Exelon, which can operate their
separate utilities economically and in a coordinated manner within the meaning
                   -----------------------------------------------------------
of the Act should be considered in the same area or region. While FERC has noted
- ----------
that "the entire Eastern interconnection is, as the name indicates,
interconnected," this refers to electrical, physical interconnection and does
not indicate that any two utilities in the Eastern interconnection can be deemed
- ---               -----------------
"integrated" within the meaning of the Act. /99/

     The regions created by changes in the operation of the transmission grid
brought about by open access transmission through RTOs are larger than those in
the electrical regions of the past for a variety of reasons. First, as
previously discussed the technological advances and additions to the
transmission network that have occurred since 1935 now permit trading to occur
over 1,000-mile distances./100/ Second, a large region is necessary to address
the inefficiencies and inequities that FERC is seeking to remedy through RTOs.

     The developments noted by the Staff in 1995, and enhancements and
improvements since that date, are breaking down traditional boundaries and
concepts of regions. The Commission has confirmed its support for the Staff's
Report, citing, in particular, the Staff's recommendation that the Commission
"continue to interpret the 'single area or region' requirement of [the 1935 Act]
to take into account technological advances."/101/ The Commission noted as long
ago as 1978 that the permissible area or region of a registered holding company
was a function of technological realities./102/ Exelon will be able to use open
access transmission to achieve the coordinated operations of its system thus
demonstrating that it will, in fact, be confined to a "single area or region."

     Other factors demonstrate that the Exelon Electric System will satisfy the
single area or region requirement.  Exelon will operate distribution facilities
in only two States -- significantly fewer than many existing or proposed
registered holding company systems.  The principal generating facilities of
Genco are located in those two States./103/ The traditional service areas of the
Exelon Electric System, that of ComEd and PECO, are similar and
homogeneous./104/ Each

________________________

/99/   North American Electric Reliability Council, 87 FERC (P) 61,161 (1999).
       -------------------------------------------
       The country is divided into three synchronous "interconnections:"
       Eastern, Western and ERCOT. The Eastern Interconnection, in which ComEd
       and PECO are located, covers all the area east of the Rocky Mountains,
       except for most of Texas.

/100/  Chicago, headquarters of ComEd is about 760 miles from Philadelphia,
       headquarters of PECO.

/101/  NIPSCO, supra; accord, Sempra, supra.  While these cases were
               -----                  -----
       determining integration of gas utilities, where the statutory standard is
       different from electric integration, the principal of taking into account
       technological advances is fully applicable in this case.

/102/  American Electric Power Company, Inc., Holding Co. Act Release No. 20633
       ------------------------------------
       (July 21, 1978)

/103/  PECO has an interest in the Salem nuclear generating station in New
       Jersey. See note [16] above. Other generating facilities coordinated by
       Genco will be EWGs whose geographical location is not restricted by the
       Act

/104/  The nature or characteristics of the service area of utilities has been
       relevant in the Commission's review of the circumstances leading to a
       conclusion that a system was integrated within the meaning of the Act.
       The

                                       49
<PAGE>

serves a major city and surrounding metropolitan and adjacent areas in a
relatively compact service area. Illinois and Pennsylvania are very similar --
both States have large populations, with a significant industrial and commercial
base.  The service characteristics and ratios of residential, industrial and
commercial companies of the companies are similar./105/ These many similarities
and the trade between the areas shows that Exelon will operate in a single area
or region.

     The conclusion that the Exelon Electric System will constitute a single
area or region is further supported by the logic of the Commission's definition
of "region" used for purposes of its size analysis under Section 10(b)(1).  In
Entergy, supra, the Commission adopted the applicants' definition of the
         -----
relevant region for purposes of Section 10(b)(1) to include themselves and those
electric utilities directly interconnected with either or both, which, at the
time, were their most accessible markets.  This region consisting of utilities
within "one wheel" of the merging utilities made sense in light of the barrier
that rate pancaking presented in trying to access more distant markets.  In
today's increasingly competitive world, ComEd and PECO do not operate as
isolated companies, and their geographic region should be analyzed in terms of
their most accessible markets, which include the areas of MISO, Alliance RTO and
PJM -- that is the open access transmission path existing between Chicago and
Philadelphia.

     The Commission's recent decision related to the gas industry in Sempra is
                                                                     ------
also relevant for a commodity business such as the evolving electricity
industry. In that decision, the SEC approved Sempra's acquisition of a 90
percent interest in Frontier Energy LLC of North Carolina and considered the
combined system to be an integrated gas system under the Act./106/ In that
decision the SEC affirmed the existence of a national natural gas commodity
market. The SEC pointed out that, when the Act was drafted in the 1930s, the
common source requirement meant the city gate. Now, however, with the changing
gas market, it means obtaining gas from the same supply basins. Thus, even
though the two systems in Sempra were 3,000 miles apart, the SEC said that its
                          ------
decision did not undercut the Act because the acquisition did not raise the
concerns that prompted its enactment./107/ This conclusion supports the notion
that mere distance does not equate to "scatteration" so long as the separate
parts of the system can be operated, under normal conditions, in a coordinated
manner. Exelon has demonstrated that it meets that test.

________________________________________________________________________________

       similarities among the various parts of an integrated system tends to
       show that the system is not so large as to impair the benefits of
       localized management and regulation and is therefore integrated. In a
       homogeneous system, management is better able to attend to local concerns
       which are similar throughout the system. See Middle West Corp., 18 SEC
                                                    -----------------
       296 (1945); In re West Texas Utilities Co., 21 SEC 566 (1945).
                   ------------------------------

/105/  In 1999, ComEd's electric revenues were derived 52% from industrial and
       commercial and 33% from residential. PECO's electric revenues were
       derived 14% from industrial customers, 12% from commercial and 27% from
       residential customers.

/106/  Sempra Energy, Holding Co. Act Release No. 26890 (June 26, 1998).
       -------------

/107/  Applicant recognizes that the Sempra case is not directly on point
                                     ------
       because the language of Section 2(a)(29)(B) of the Act regarding an
       integrated gas utility differs from that of Section 2(a)(29)(A)
       describing an electric system. The recognition in that case of the
       changing nature of energy markets in the United States is directly
       relevant, however.

                                       50
<PAGE>

     Exelon does not believe that the combination of ComEd and PECO will
contravene the policy of the Act against "scatteration" -- the ownership of
widely dispersed utility properties that do not lend themselves to efficient
operation. As stated in Sempra, supra, "The Act is directed against the growth
                        ------  -----
and extension of holding companies [that] bears no relation to economy of
management and operation or the integration and coordination of related
operating properties." The Commission dealt with this concept in American
                                                                 --------
Electric Power in 1978./108/ This case involved one of the few situations of a
- --------------
significant expansion of a registered holding company system in "modern" times,
i.e. after the period when the break-up of the huge holding company systems of
the 1930's was complete. The Commission noted that "the standards in these
sections [2(a)(29) and 10(b)] were relatively easy to apply to the huge,
complex, and irrational holding company systems at which the Act was primarily
aimed." The Commission went on to note that it was more difficult to apply the
standards to AEP which, although large and widespread, was efficient and clearly
a rational and proper company. Exelon, like AEP in 1978, does not present any of
the evils the Act was designed to eliminate. The facts of this case demonstrate
that the Exelon Electric System will be economically operated as a single
interconnected and coordinated system. It has a sound economic and financial
rationale. It will have compact distribution service areas in only two States.
Furthermore, as demonstrated in the following sections, the combined system will
not have an adverse effect upon localized management, efficient operation or
effective regulation.

             (E) Size

     The final clause of Section 2(a)(29)(A) requires the Commission to look to
the size of the combined system (considering the state of the art and the area
or region affected) and its effect upon localized management, efficient
operation, and the effectiveness of regulation.  In the instant matter, these
standards are easily met./109/

     Localized Management  The Commission has found that an acquisition does
     --------------------
not impair the advantages of localized management where the new holding
company's "management [would be] drawn from the present management" (Centerior,
                                                                     ---------
supra), or where the acquired company's management would remain substantially
- -----
intact (AEP, supra).  The Commission has noted that the distance of corporate
        ---  -----
headquarters from local management was a "less important factor in determining
what is in the public interest" given the "present-day ease of communication and
transportation."  AEP, supra.  The Commission also evaluates localized
                  ---  -----
management in terms of whether a merged system will be "responsive to local
needs." AEP, supra.
        ---  -----

     The management of Exelon will be drawn primarily from the existing
management of Unicom, ComEd, PECO and their subsidiaries.  The corporate
headquarters of Exelon will be in Chicago -- the current headquarters of Unicom
and ComEd.  PECO's distribution and transmission functions will have
headquarters in Philadelphia.  The management of the combined generating
operations of Genco and the marketing activities will be conducted in
southeastern Pennsylvania.  The electric utility subsidiaries will continue to
operate through the regional offices with local service personnel and line crews
available to respond to customer's

______________________

/108/  American Electric Power Company, Inc., Holding Co. Act Release No. 20633
       ------------------------------------
       (July 21, 1978) ("AEP").

/109/  See Item 3.B.2(a) for a discussion of the relative size of the Exelon
       system

                                       51
<PAGE>

needs. In short, the management structures of ComEd and PECO, which are
responsive to local needs, will continue to perform to meet customer needs after
the Merger. Accordingly, the advantages of localized management will not be
impaired.

     Efficient Operation -- As discussed above in the analysis of Section
     -------------------
10(b)(1), the size of Exelon will not impede efficient operation; rather, the
Merger will result in significant economies and efficiencies. Operations will
be more efficiently performed on a centralized basis because of economies of
scale, standardized operating and maintenance practices and closer coordination
of system-wide matters.

     Effective Regulation -- The Merger will not impair the effectiveness of
     --------------------
regulation at either the State or Federal level.  ComEd will continue to be
regulated by the Illinois Commission and PECO by the Pennsylvania Commission
with respect to retail rates, service and related matters subject to the
changing regulation brought about by utility regulatory restructuring laws in
both States./110/ On the Federal level, Exelon will be regulated as a single
registered holding company as opposed to two exempt holding company systems.
The electric utility subsidiaries of Exelon will continue to be regulated by
FERC with respect to interstate electric sales for resale and transmission
services, by the NRC with respect to the operation of nuclear facilities, and by
the FCC with respect to certain communications licenses.

     At the State level, the Merger Agreement requires approval of the
Pennsylvania Commission. Under the Illinois Customer Choice and Rate Relief Law
of 1997, the legislature determined that corporate reorganizations and mergers
would foster the move to a more competitive environment and accordingly provided
that such transactions, such as the Merger, could be undertaken without an
approval process at the Illinois Commission. See 220 ILCS 5/16-111(g). Although
                                             ---
the process is streamlined, the new law -- together with other provisions of the
Illinois Public Utility Act, clearly protects the public interest. Under the
Customer Choice and Rate Relief Law, ComEd is required to file a notice with the
Illinois Commission describing its transaction. That notice was filed on
November 22, 1999/111/ and included the following information, as required by
statute:

     .   A complete statement of the accounting entries to be made to reflect
         the transaction, a certification that the entries are in accordance
         with GAAP, and a certification that cost allocations between the
         utility and its affiliates will be in accord with Illinois Commission
         approved cost allocation guidelines.

     .   A description of the use of proceeds of any sale of facilities
         (inapplicable to this transaction).

     .   A list of regulatory approvals for the transaction.

_______________________

/110/  Although Genco will be a "public-utility company" for purposes of the Act
       and will be subject to FERC rate regulation, it will not be subject to
       utility regulation by Illinois or Pennsylvania consistent with the
       restructuring legislation in those States.

/111/  An amended notice informs the Illinois Commission of the change to the
       Merger Agreement.

                                       52
<PAGE>

     .   An irrevocable commitment by the utility that, as a result of the
         transaction, it will not impose any stranded cost charges that it might
         otherwise be allowed to charge retail customers under Federal law or
         increase the transition charges that it is otherwise entitled to
         collect under the Illinois utility restructuring law.

     The forgoing notice constitutes all action that must be taken for the
Merger to proceed under Illinois law.

     The public interest is protected by these requirements and by other
provisions of the Illinois Public Utility Act that will continue to be
applicable to ComEd, most notably the provisions regulating affiliate
transactions. Applicant is working closely with regulators (both State and
Federal) to obtain the required approvals.  The Illinois Commission and the
Pennsylvania Commission have adequate jurisdiction to prevent the Merger from an
impairment of their regulatory authority.

               (F) Conclusion -- Exelon Electric System will be Integrated

     A rigid reading of the integration requirement may have been appropriate at
a time when ownership or control of the intervening transmission lines was the
only way that a utility could move power from its generation assets to its
distribution systems.  The need for this type of firm physical interconnection
has been greatly reduced, if not eliminated, as the distribution systems now
routinely contract for power with nonaffiliates and move the purchased commodity
power over independently operated or owned transmission lines -- or eliminate
the requirement for physical movement of power from the generator to the utility
system through use of market swaps, power displacement or similar techniques.
Indeed, a narrow reading of the integration standard could force merging parties
to a "Hobson's choice," by requiring unnecessary interconnections that could
cause a merger to fail to satisfy FERC's standards for approval.

     As FERC explained in the RTO NOPR:

               the industry has undergone sweeping restructuring
               activity, including a movement by many states to
               develop retail competition, the growing divestiture
               of generation plants by traditional electric utilities,
               a significant increase in the number of mergers among
               traditional electric utilities and among electric
               utilities and gas pipeline companies, large increases
               in the number of power marketers and independent
               generation facility developers entering the marketplace,
               and the establishment of independent system operators
               (ISOs) as managers of large parts of the transmission
               system.  Trade in bulk power markets has continued to
               increase significantly and the Nation's transmission
               grid is being used more heavily and in new ways.  As
               a result, the traditional means of grid management is
               showing signs of strain and may be inadequate to
               support the efficient and reliable operation that is

                                       53
<PAGE>

               needed for the continued development of competitive
               electricity markets./112/

     The Commission has found, and the courts have agreed, that in circumstances
in which the expertise in operating issues is lodged with another regulator, it
is appropriate to "watchfully defer" to the work of that regulator./113/
Applicant urges the SEC to apply the doctrine of watchful deference to FERC's
stated objective to improve the competitiveness of the electric industry through
large RTOs, Orders such as 888 and 889, and through State development of
restructuring laws.

     The need for the SEC to accommodate the views of FERC in this matter cannot
be overstated. Congress enacted the 1935 Act and the FPA as two parts of the
same legislation. The legislative history makes clear that the purpose of
Section 11 of the 1935 act "is simply to provide a mechanism to create
conditions under which effective Federal and State regulation will be
possible."/114/ The FERC's administration of the FPA has evolved as that agency
has sought to develop fully competitive wholesale markets consistent with
changing technology. Administration of the 1935 Act must also evolve if the 1935
Act is to continue to create conditions under which "effective Federal and State
regulation" is possible.

     In the 1995 Report, the Division recommended that the Commission focus on
whether the resulting system will be subject to effective regulation.  The Study
emphasized that "open access under FERC Order No. 636, wholesale wheeling under
the Energy Policy Act [and FERC Order No. 888] and the development of an
increasingly competitive and interconnected market for wholesale power have
expanded the means for achieving the interconnection and the economic operation
and coordination of utilities with non-contiguous service territories." 1995
Report at 73-74.  The Study further expressed concern that the Act "not serve as
an artificial barrier where other energy regulators have determined that an
acquisition will benefit utility consumers."  Accordingly, the Study concluded
that "[w]hen considering any proposed acquisition, the SEC should consider
whether the resulting system will impair the effectiveness of regulation.  Where
the affected State and local regulators concur, the SEC should interpret the
integration standard flexibly to permit non-traditional systems if the standards
of the Act are otherwise met." Under this approach, if the affected States
approve a proposed transaction (a condition precedent to the instant Merger),
the "effectiveness of regulation" standard would be met.  A condition of the
Merger is the receipt of all requisite State approvals.

     The Commission should find that the Exelon Electric System comprises a
single, integrated electric utility system within the meaning of the Act.

________________________

/112/  RTO NOPR, FERC Stats & Regs at 33,685.

/113/  Northeast Utilities, Holding Co. Act Release No. 25273 (March 15, 1991),
       -------------------
       aff'd sub nom. City of Holyoke v. SEC, 972 F.2d 358 (1992).  See also
       ----- -------------------------------                        --- ----
       Wisconsin's Environmental Decade v. SEC, 882 F.2d 523 (D.C. Cir. 1989)
       ---------------------------------------
       ("we are not prepared to say that the Commission abdicates its duty in an
       exemption determination by deciding to rely, watchfully, on the course of
       state regulation").

/114/  Sen. Rep. No. 621, 74th Cong., 1st Sess.  (1935).

                                       54
<PAGE>

               (iv) Retention of Exelon Gas System

     Because the Commission has interpreted the term "integrated public-utility
system" to mean a system that is either gas or electric, but not both, it is
necessary to qualify the gas operations of PECO (the "Exelon Gas System") under
the "A-B-C" clauses of Section 11(b)(1).  Under those provisions, a registered
holding company can own "one or more" additional integrated systems if certain
conditions are met.  Specifically, the Commission must find that (A) the
additional system "cannot be operated as an independent system without the loss
of substantial economies which can be secured by the retention of control by
such holding company of such system," (B) the additional system is located in
one State or adjoining states, and (C) the combination of systems under the
control of a single holding company is not so large . . . as to impair the
advantages of localized management, efficient operation, or the effectiveness of
regulation."

     As shown below the Exelon Gas System currently is, and will continue to be,
a single, integrated public-utility system. This case presents a less
complicated determination of the A-B-C Clause test than other cases presented to
the Commission in recent years because only PECO has gas distribution
facilities. There is no need, as has been the situation with other cases to
analyze whether two previously separate gas systems can constitute a single
integrated system. Further, the PECO gas system has been operating as a single,
integrated system for many years.

     Section 2(a)(29)(B) defines an "integrated public-utility system" as
applied to gas utility companies as:

     a system consisting of one or more gas utility companies which are
     so located and related that substantial economies may be effectuated
     by being operated as a single coordinated system confined in its
     operation to a single area or region, in one or more States, not so
     large as to impair (considering the state of the art and the area or
     region affected) the advantages of localized management, efficient
     operation, and the effectiveness of regulation:  Provided, that gas
     utility companies deriving natural gas from a common source of supply
     may be deemed to be included in a single area or region.

PECO's current gas operations satisfy this definition.  There will be no change
to the PECO gas operations caused by the Merger that would affect this
conclusion.

     PECO's gas operations serve all or a portion of five counties surrounding
the City of Philadelphia.  This "single area or region" is located wholly within
the Commonwealth of Pennsylvania. PECO's facilities comprise a physically
interconnected network of gas transmission and distribution facilities that
derive all of their natural gas from common sources of supply.  The management
of PECO's gas operations will continue to reside with PECO Energy, which will be
headquartered in the City of Philadelphia (indeed, the electric and gas
distribution companies will continue to share employees and common facilities so
long as the Commission does not order divestiture).  Management will,
accordingly, remain close to the gas operations, thereby preserving the
advantages of local management.  This will remain true even after the Merger and
various plans of reorganization and restructuring have been implemented.  PECO's
gas distribution operations are, and will continue to be, regulated by the
Pennsylvania

                                       55
<PAGE>

Commission. The effectiveness of regulation will not be altered or impaired by
PECO's merger with Unicom.

     PECO's gas operations overlap the territory served by PECO's electric
distribution company ("EDC").  This overlap of service territories permits PECO
to achieve significant synergies in serving both its electric and gas customers
which are passed along to those customers in the form of lower rates and better
service.  The synergies achieved due to PECO's combined gas and electric
operations are identified in Exhibit J-1 hereto, which identifies the additional
costs PECO's gas utility would incur if PECO were not permitted to retain the
system and were instead forced to operate as a stand-alone gas utility.

     The Pennsylvania Legislature recently passed the Natural Gas Competition
Act ("Gas Competition Act").  66 Pa.C.S.A. (S)(S) 2201 et. seq. (1999).  The
Pennsylvania Gas Competition Act will require PECO to provide competitors access
into PECO's gas distribution network.  While PECO is presently one of the lowest
cost gas utility suppliers in the Commonwealth of Pennsylvania, if PECO were
required to divest its gas utility, the conservative projections included in
Exhibit J-1 indicate that the price PECO's gas utility would have to charge
retail customers located in its present service territory would make it one of
the most expensive retail gas suppliers in the State (with an estimated post-
divestiture rate increase of $292 per customer per year, an increase of
30.28%)./115/

     Because most of the increased costs would be charged to operations that
will remain regulated under the Gas Competition Act, such as gas distribution,
maintenance of gas mains, meter reading, billing and customer service, it will
not be possible for PECO's distribution customers to escape the high cost of a
new stand-alone operation by choosing an alternate gas supplier.  See Exhibit J-
1 at 5.  Thus, if the Commission were to require PECO to divest its gas
operations to "New Gas Co", New Gas Co's gas distribution customers would suffer
the most.

     PECO's gas system not only satisfies the integration requirements of
Section 2(A)(29)(B), the retention of this system is also appropriate under the
A-B-C clauses of (S) 11(b)(1) of the Act, as shown below.

               (A) Loss of economies if operated as an independent system

     In its 1995 Report, the SEC Staff noted that, in a competitive utility
environment, any loss of economies threatens a utility's competitive position
and even a "small" loss of economies could render a utility vulnerable to
significant erosion of its competitive position.  Adopting this line of
reasoning, the Commission, in its order approving the merger of Public Service
Colorado and Southwestern Public Service, moved away from earlier cases that
required, in effect, a showing that the additional system could not survive on a
stand-alone basis.  In this case the Commission found that "[t]he gas and
electric industries are converging, and, in these circumstances, separation of
gas and electric businesses may cause the separated entities to be weaker
competitors than they would be together.  This factor adds to the quantifiable
loss of

_____________________

/115/  Under the Gas Competition Act the non-gas cost portion of PECO's rates
       are capped until January 1, 2001.

                                       56
<PAGE>

economies caused by increased costs." /116/ The potential of divestiture
injuring PECO's ability to compete is heightened in this case because PECO is
already subject to retail electric competition in the Commonwealth of
Pennsylvania and will soon be subject to retail gas competition as well.

     Historically, the Commission has given consideration to four ratios, which
measure the projected loss of economies as a percentage of: (1) total utility
operating revenues; (2) total utility expense or "operating revenue deductions";
(3) gross utility income; and (4) net utility operating income.  Although the
Commission has declined to draw a bright-line numerical test under Section
11(b)(1)(A), it has indicated that cost increases resulting in a 6.78% loss of
operating revenues, a 9.72% increase in operating revenue deductions, a 25.44%
loss of gross gas income and a 42.46% loss of net income would afford an
"impressive basis for finding a loss of substantial economies."  Engineers
                                                                 ---------
Public Service Co., Holding Co. Act Release No. 3796 (Sept. 17, 1942).
- ------------------

     Direct Loss of Economies.  PECO has prepared a study of its gas utility
     ------------------------
operations that analyzes the lost economies that its gas utility operations
would suffer upon divestiture when compared to their retention pursuant to the
Merger.  The study is attached to this Application as Exhibit J-1 (the "Gas
Study").

     The Gas Study shows that if New Gas Co were operated on a stand-alone
basis, lost economies from the need to replicate services, the loss of economies
of scale, the costs of reorganization, and other factors would be immediate and
substantial.  In the absence of rate relief, those lost economies would
substantially injure the shareholders of PECO and Unicom upon the divestiture of
those gas operations.  As the Gas Study further shows, if rate relief were
granted with respect to the lost economies, then consumers would bear the
majority of those substantial costs over what they would have to pay if the
properties were retained as contemplated by the Merger.  This is because a
substantial portion of the synergies achieved by combined operations occur in
operational areas that will remain subject to rate regulation even after full
retail competition for retail gas and electric customers is implemented in
Pennsylvania.

     As set forth in the Gas Study, divestiture of the gas operations of PECO
into New Gas Co would result in lost economies of over $72.8 million (exclusive
of income tax effects).  The table below shows PECO's 1998 gas operating
revenues, gas operating revenue deductions, gas gross income and net income from
gas operations on both a pre- and post-divestiture basis.  The post-divestiture
gas operating revenues number is the revenue requirement in order for NewGasCo
to make up for the lost economies.

___________________

/116/  New Century Energies, supra.  See also Dominion Resources, Inc., Holding
       --------------------  -----   --- ---- ------------------------
       Company Act Release No. 27113 (December 15, 1999); WPL Holdings, supra.
                                                          ------------  -----

                                       57
<PAGE>

================================================================================

                                   Gas       Gas Operating     Gas       Gas
Timing                          Operating       Revenue       Gross      Net
                                 Revenues     Deductions     Income    Income
- --------------------------------------------------------------------------------

                                             (Dollars in Thousands)

Pre-Divestiture (actual)         $399,642      $323,265     $76, 377   $58,506
Post-Divestiture
(est., see Exh. J-1)             $520,640      $396,143     $  3,499   $19,214
                                 --------      --------     --------   -------
Difference                       $120,998      $ 72,878     $ 72,878   $39,292

(Increased
revenue require-
ment; Economies
Lost as Result of
Divestiture)

================================================================================

     On a percentage basis, the lost economies amount to 124.5% of 1998 gas net
income--far in excess of the 30% loss of net income in New England Electric
System that the Commission has described as the highest loss of net income in
any past order requiring divestiture./117/ As a percentage of 1998 gas operating
revenues, these lost economies described in the Gas Study amount to 18.24% --
greater than the losses identified in several past orders that permitted merger
applicants to retain the additional systems in question./118/ As a percentage of
1998 expenses or operating revenue deductions, the lost economies described in
the Gas Study would amount to 22.54%. Again, the losses identified in the Gas
Study exceed the losses as a percentage of operating revenue deductions
identified in past orders permitting retention of the additional systems,
including Ameren (17.6%) and Conectiv (17.4%). As a percentage of 1998 gross
income, the lost economies described in the Gas Study amounts to 95.42%, far in
excess of the 25.44% figure the Commission relied upon in identifying a loss of
substantial economies in its Engineers Public Service Co. decision. See supra.
                                                                    --- -----

/117/  See UNITIL Corp., Holding Co. Act Release No. 25524 (April 24, 1992)
       --- ------------
       ("The Commission has required divestment where the anticipated loss of
       income of the stand-alone company was approximately 30% . . ." or "29.9%
       of net income before taxes"), citing SEC v. New England Electric System,
                                     ------ ----------------------------------
       390 U.S. 207, 214 n. 11 (1968).

/118/  See, e.g., Conectiv, Inc., Holding Co. Act Release No. 26832 (February
       ---  ----  --------------
       25, 1998) (loss of 14.07% of gas operating revenues in case permitting
       retention of additional gas system); UNITIL Corp., supra (loss of
                                            ------------  -----
       slightly less than 14% of operating revenues). The highest loss of
       operating revenues in any case ordering divestiture is commonly said to
       be 6.58%. ("[o]f cases in which the Commission has required divestment,
       the highest estimated loss of operating revenues of a stand-alone company
       was 6.58% . . .") Id.
                         ---

                                       58
<PAGE>

     In order to recover these estimated lost economies, New Gas Co stand-alone
gas operations would need to increase rate revenue by $123 million or about 30%.
This increase in rate revenues would have an immediate negative impact on the
rates charged to customers for gas services (to the extent that they apply to
regulated operations) and would adversely impact New Gas Co's ability to compete
in the emerging retail gas market in Pennsylvania (to the extent they apply to
operations which will soon be competitive).  In addition, the customers of
PECO's gas businesses who are also electric customers will experience a doubling
of their postage costs to pay two separate bills.  The total estimated increase
in incremental costs associated with forced divestiture would be $292 per
customer per year, or 30.3% over the average customer's current annual payments.

     Other Lost Economies.  Divestiture of the PECO gas property would also
     --------------------
result in the loss to consumers of the cost-saving benefits of the economies
offered by the "energy services" approach of PECO and Unicom to the utility
business. While the losses cannot now be fully quantified, they are substantial.
At the center of the energy services company concept is the idea that providing
gas and electric services and products is only the start of the utility's job.
In addition, the company must provide enhanced service to the consumer by
providing an entire package of both energy products and services. In this area,
PECO and Unicom's efforts are part of a trend by companies to organize
themselves as energy service providers; that is, as providers of a total package
of energy services rather than merely utility suppliers of gas and electric
products. The goal of an energy service company is to retain its current
customers and obtain new customers in an increasingly competitive environment by
meeting customers' needs better than the competition. An energy service company
can provide the customer with a low cost energy (i.e. gas, electricity or
conservation) option without inefficient subsidies. This trend towards, and the
need for, convergence of the former separate electric utility function and gas
utility function into one energy service company was recognized by the
Commission in Consolidated Natural Gas Company, Holding Co. Act Release No.
              --------------------------------
26512 (April 30, 1996) (hereinafter, the "CNG Order"), where the Commission
                                          ---------
stated: "It appears that the restructuring of the electric industry now
underway will dramatically affect all United States energy markets as a result
of the growing interdependence of natural gas transmission and electric
generation, and the interchangeability of different forms of energy,
particularly gas and electricity."  See also New Century Energies, Holding Co.
                                    --- ---- --------------------
Act Release No. 26748 (August 1, 1997); UNITIL Corp., Holding Co. Act Release
                                        ------------
No. 26527 (May 31, 1996) and SEI Holdings, Inc., Holding Co. Act Release No.
                             ------------------
26581 (Sept. 26, 1996).

     It is the intent of Applicant that PECO's gas property continue to be
integrated and operated as a single economic system in conjunction with
Applicant's combined electric system in order to better provide competitive
comprehensive energy services to Applicant's customers.  PECO's potential
competitors, including Conectiv, Baltimore Gas & Electric, Public Service
Electric and Gas, UGI Utilities, Inc., PPL Corporation and others are themselves
potential suppliers of comprehensive energy services.  The lost economies
Applicant shows in Exhibit J-1 are substantial in an industry in which there are
already many companies competing with Applicant for the provision of
comprehensive energy services in Applicant's service territories.  In areas of
PECO's business that will remain regulated, lost economies will result in
increased

                                       59
<PAGE>

retail rates for PECO's gas and electric customers. For the deregulated portions
of PECO's business, competition between energy suppliers can only benefit
consumers.

     As the Commission recognized in WPL Holdings, TUC Holdings and New Century
                                     ------------  ------------     -----------
Energies, there are significant economies and competitive advantages inherent in
- --------
a combined gas and electric utility as contrasted to a utility offering only
electricity or gas.  Besides the loss of these inherent economies, other
substantial economies would be lost by the separation of the electric systems
from the gas system.  These lost economies would include decreased efficiencies
from separate meter reading, meter testing and billing operations, the need for
duplicative customer service operations, plus a loss of savings due to failure
to exploit synergies in areas such as facilities maintenance, emergency work
coordination, and other administrative operations.

     A final consideration, raised by the Commission in the 1997 New Century
Energies Order, is that PECO's gas and electric properties have long been under
PECO's control, and approval of the Merger will not alter the status quo with
respect to these operations.

     It is Applicant's view that the standards of Clause A of Section 11(b)(1)
of the Act are satisfied in light of the increased expenses and the potential
loss of competitive advantages that could result from the divestiture of PECO's
gas system.  Applicant requests that the Commission find the standards of Clause
A are satisfied for the reasons set forth above.

               (B) Same State or Adjoining States

     The Merger does not raise any issue under Section  11(b)(1)(B) of the Act.
The Commission has paraphrased Clause B as follows:  "All of such additional
systems are located in a State in which the single integrated public-utility
system operates, or in states adjoining such a State, or in a foreign country
contiguous thereto."  Engineers Public Service Company, Holding Co. Act Release
                      --------------------------------
No. 2897 (July 24, 1941), rev'd on other grounds, 138 F.2d 936 (D.C. Cir. 1943),
                          ----------------------
vacated as moot, 332 U.S. 788 (1947).  The PECO Gas System is located in the
- ---------------
same State and region as the PECO Electric System.  Indeed, the two service
territories overlap.  Thus, the requirement that each additional system be
located in one State or adjoining States is satisfied.

     It is Applicant's view that the standards of Clause B of Section 11(b)(1)
of the Act are satisfied due to the proximate location of PECO's gas and
electric properties.  Applicant requests that the Commission find the standards
of Clause B are satisfied for the reasons set forth above.

               (C) Size --Localized Management; Efficient Operation; Effective
                   Regulation

     Retention of PECO's gas operations as an additional integrated system
raises no issue under Section 11(b)(1)(C) of the Act.  PECO's mid-sized gas
system is "not so large . . . as to impair the advantages of localized
management, efficient operation, or the effectiveness of regulation."  In any
event, as the Commission has recognized elsewhere, the determinative
consideration is not size alone or size in an absolute sense, either big or
small, but size in relation to its effect, if any, on localized management,
efficient operation and effective regulation.  From these perspectives, it is
clear that PECO's gas operations are not too large.

                                       60
<PAGE>

     PECO's gas utility operations with 419,738 gas customers combined in five
adjoining Pennsylvania counties, are relatively minor when compared to Houston
Industries (the parent of Minnegasco) which, through subsidiaries, has 2.7
million gas customers located in multiple States, 630,000 in Minnesota alone.

     Based on data through December 31, 1999, and giving effect to the Merger,
the net gas utility property, plant and equipment will represent only 2.8% of
the total assets of Exelon, whereas the net electric utility property, plant and
equipment will represent 45.3%; operating revenues for the gas operations will
be 3.9% of total company revenues as compared with 94.5% for the electric
operations; and customers of the gas operations will constitute 8% of all Exelon
customers (all of which are also located in PECO's electric distribution service
territory), while electric operations will represent 92%.

     With respect to localized management, this issue is discussed for the
Merger as a whole under Item 3.B.3(a)(iii)(D) below. Applied solely to the gas
operations, the PECO gas system will continue to be run from PECO Energy's
Philadelphia headquarters.  Management will therefore remain geographically
close to the gas operations, thereby preserving the advantages of localized
management. No reduction in customer service or support crews is expected.

     From the standpoint of regulatory effectiveness, PECO has operated its
combined gas and electric utility in Pennsylvania for many years. The historical
joint gas and electric utility operations of PECO have not raised regulatory
concerns in Pennsylvania and Applicant does not believe the Merger will
introduce any new concerns in this area.

     With respect to efficient operation, as described above, as part of the
Applicant's combined system, PECO's gas operations are expected to provide cost
synergies in combined operations worth approximately $84.4 million over the ten-
year period from 2001-2010, which may enable PECO to reduce costs for its
regulated gas distribution customers and compete more efficiently for retail gas
customers in Pennsylvania's newly deregulated retail gas market.  Effective
competition in the Pennsylvania retail gas market is absolutely necessary if the
fledgling market is to provide benefits to retail customers.  Far from impairing
the advantages of efficient operation, the continued combination of the gas
operations will facilitate and enhance the efficiency of both Exelon's gas and
electric operations.

     It is Applicant's view that the standards of Clause C of Section 11(b)(1)
of the Act are satisfied because the Merger will not give rise to any of the
abuses, such as ownership of scattered utilities properties, inefficient
operations, lack of local management or evasion of State regulation, that Clause
C and the Act generally were intended to prohibit.  Applicant requests that the
Commission find the standards of Clause C are satisfied for the reasons set
forth above.

          (v)    Retention of Other Businesses

     Exhibits E-3 and E-4 list and describe those non-utility businesses
conducted by Unicom and PECO. As a result of the Merger, the non-utility
businesses and interests of Unicom and PECO described in Item 1.C. above and in
those Exhibits will become businesses and interests of Exelon. These non-utility
interests are fully retainable by Exelon under the Act. Corporate charts

                                       61
<PAGE>

showing the subsidiaries, including non-utility subsidiaries of Unicom and PECO,
are filed as Exhibits E-3 and E-4. A corporate chart showing the projected
arrangement of these subsidiaries under Exelon is filed as Exhibit E-5.

     Section 11(b)(1) permits a registered holding company to retain "such other
businesses as are reasonably incidental, or economically necessary or
appropriate, to the operations of [an] integrated public-utility system." The
Commission has historically interpreted this provision to require an operating
or "functional" relationship between the non-utility activity and the system's
core non-utility business. /119/ The Commission modified this historical
position and "has sought to respond to developments in the industry by expanding
its concept of a functional relationship."/120/ This shift culminated in the
adoption of Rule 58. The Commission added "that various considerations,
including developments in the industry, the Commission's familiarity with the
particular non-utility activities at issue, the absence of significant risks
inherent in the particular venture, the specific protections provided for
consumers and the absence of objections by the relevant State regulators, made
it unnecessary to adhere rigidly to the types of administrative measures" used
in the past./121/ Furthermore, in the 1995 Report, the SEC Staff recommended
that the Commission replace the use of bright-line limitations with a more
flexible standard that would take into account the risks inherent in the
particular venture and the specific protections provided for consumers./122/ As
set forth more fully in Exhibits I-1 and I-2, the non-utility business interests
that Exelon will hold directly or indirectly all meet the Commission's standards
for retention.

     In the past, the Commission has approved the acquisition or retention of
non-utility businesses in a merger where one or both companies were either not
subject to the Act or were exempt from registration. See WPL Holdings, Inc.,
                                                     --- -----------------
supra.  See also New Century Energies, supra.  Applicant submits that the
- -----            --------------------  -----
statutory requirements for ownership of all non-utility businesses identified in
Exhibits E-3 and E-4 are satisfied.

     In New Century Energies and WPL Holdings, the Commission also excluded the
        --------------------     ------------
non-utility businesses applicants sought to retain from the limitation upon
investment in energy-related companies under Rule 58, noting that the
restrictions of Section 11(b)(1) are applicable to registered holding companies
and not to exempt holding companies.  Unicom and PECO are both exempt holding
companies.  Rule 58 provides in section (a)(1)(ii) that investments in non-
utility activities that are exempt under Rule 58 cannot exceed 15% of the
consolidated capitalization of the registered holding company.  In its statement
supporting the adoption of the Rule, the Commission stated:

______________________

/119/   See, e.g., Michigan Consolidated Gas Co., Holding Co. Act Release No.
        ---  ----  -----------------------------
        16763 (June 22, 1970), aff'd, 444 F.2d 913 (D.C. Cir. 1971); United
                               -----                                 ------
        Light and Railways Co., Holding Co. Act Release No. 12317 (Jan. 22,
        ----------------------
        1954); CSW Credit, Inc., Holding Co. Act Release No. 25995 (March 2,
               ----------------
        1994); and Jersey Central Power and Light Co., Holding Co. Act Release
                   ----------------------------------
        No. 24348 (March 18, 1987).

/120/   Exemption of Acquisition by Registered Public-utility Holding Companies
        of Securities of Non-utility Companies Engaged in Certain Energy-related
        and Gas-related Activities, Holding Co. Act Release No. 26667 (Feb. 14,
        1997) ("Rule 58 Release").

/121/   Id.
        ---

/122/   1995 Report at 81-87, 91-92.

                                       62
<PAGE>

          The Commission believes that all amounts that have actually
          been invested in energy-related companies pursuant to
          commission order prior to the date of effectiveness of the
          Rule should be excluded from the calculation of aggregate
          investment under Rule 58. The Commission also believes it is
          appropriate to exclude from the calculation all investments
          made prior to that date pursuant to available
          exemptions./123/

     Because the non-utility investments of Unicom and PECO, as exempt holding
companies, were exempt under the Act, investments made by them prior to the
effective date of Rule 58 which will continue as part of Exelon after
consummation of the merger, should not count in the calculation of the 15%
maximum.  See New Century Energies, supra (Commission order granting exclusion
          --- --------------------  -----
of non-utility energy-related investments of Southwestern Electric Service, an
independent utility, and Public Service Colorado, an exempt holding company,
from calculations of the 15% maximum investment allowed under Rule 58).

          (b)  Section 10 (c)(2) -- Economies and Efficiencies

     Because the Merger is estimated to result in substantial cost savings and
synergies, it will tend toward the economical and efficient development of an
integrated public-utility system, thereby serving the public interest, as
required by Section 10(c)(2) of the Act.

     The Merger will produce economies and efficiencies more than sufficient to
satisfy the standards of Section 10(c)(2) of the Act.  Although some of the
anticipated economies and efficiencies will be fully realizable only in the
longer term, they are properly considered in determining whether the standards
of Section 10(c)(2) have been met.  See AEP, supra.  Some potential benefits
                                    --- ---  -----
cannot be precisely estimated, nevertheless they too are entitled to be
considered.  "[S]pecific dollar forecasts of future savings are not necessarily
required; a demonstrated potential for economies will suffice even when these
are not precisely quantifiable."  Centerior, supra.
                                  ---------  -----

       Cost Synergies.  Unicom and PECO estimate that the combined company will
       --------------
achieve regulated and unregulated net annual cost savings of approximately $100
million in the first year following completion of the merger, increasing to
approximately $180 million by the third year.  Approximately 60% of these
savings will be attributable to regulated activities and the remainder to
unregulated activities.  Estimated savings include only those cost savings and
cost avoidance items management expects to achieve as a result of the merger.
These expected savings are comparable to the anticipated savings in a number of
recent acquisitions approved by the Commission./124/

/123/   Holding Co. Act Release No. 26667 at 75.

/124/   See, e.g., NIPSCO Industries, Inc., Holding Co. Act Release No. 26975
        ---  ----  -----------------------
        (Feb. 10, 1999) (estimated expected savings of $57.45 million over ten
        years); Sempra Energy, Holding Co. Act Release No. 26890 (June 26, 1998)
                -------------
        (estimated expected savings of $1.2 billion over ten years);
        BL Holding Corp., Holding Co. Act Release No. 26875 (May 15, 1998)
        ----------------
        (estimated expected savings of $1.1 billion over ten years); LG&E
                                                                     ----
        Energy Corp., Holding Co. Act Release No. 26866 (April 30, 1998)
        ------------
        (estimated expected savings of $687.3 million over ten years); WPL
                                                                       ---
        Holdings, Holding Co. Act Release No. 26856 (April 14, 1998)
        --------
        (estimated expected savings of

                                       63
<PAGE>

       Other Benefits.  Unicom and PECO believe that the Merger will provide
       --------------
substantial strategic and financial benefits to PECO Energy's and Unicom's
shareholders, employees and customers.  These benefits are expected to include:

     . Expanded Generation Capacity.  Exelon is expected to have a portfolio of
     generation assets with a capacity that will be nearly double that of either
     PECO Energy or Unicom alone and that can be deployed to expand its power
     marketing business. Unicom and PECO believe the competitive and strategic
     value of size and scope will increase future earnings growth rates,
     creating value for shareholders. With a focus on nuclear operations
     excellence, Exelon will have the nation's largest nuclear generation fleet.
     Unicom and PECO expect to achieve synergies in operations and supply
     management by combining best practices and operating capabilities. The
     expansion strategy of Exelon will be consistent with PECO Energy's
     disciplined acquisition programs and will provide a framework for adding
     value to Unicom's nuclear fleet.

     . Expanded Marketing and Trading Business. Based on the expanded generation
     capacity of Exelon, Unicom and PECO will extend the scale and the scope of
     the power marketing and trading business by:

          .    Capitalizing on the flexibility and geographic diversity of the
               combined portfolio,

          .    broadening the portfolio of customized products offered to
               customers,

          .    enhancing their position as a preferred counterparty, and

          .    pursuing additional generation development and contract
               opportunities.

     .    Broadened Distribution Platform. Exelon will have approximately 5
          million electric customers -- among the largest electric utility
          customer bases in the nation -- and will use its existing distribution
          facilities as a platform for regional consolidation based on:

          .    an unwavering commitment to top-tier reliability and customer
               satisfaction,



- --------------------------------------------------------------------------------

        $680 million over ten years); Conectiv, Holding Co. Act Release No.
                                      --------
        26832 (Feb. 25, 1998) (estimated expected savings of $500 million over
        ten years); Ameren Corporation, supra (estimated savings of $686 million
                    ------------------  -----
        over ten years); 1997 NCE Order, supra (estimated savings of $770
                                         -----
        million over ten years); TUC Holding Company, supra (estimated savings
                                 -------------------  -----
        of $505 million over ten years); Northeast Utilities, supra (estimated
                                         -------------------  -----
        savings of $837 million over eleven years); Entergy Corporation,
                                                    -------------------
        Holding Co. Act Release No. 25952 (Dec. 17, 1993) (expected savings of
        $1.67 billion over ten years); Northeast Utilities, Holding Co. Act
                                       -------------------
        Release No. 25221 (Dec. 21, 1990) (estimated savings of $837 million
        over eleven years); Kansas Power and Light Co., Holding Co. Act Release
                            --------------------------
        No. 25465 (Feb. 5, 1992) (expected savings of $140 million over five
        years); IE Industries, Holding Co. Act Release No. 25325 (June 3, 1991)
                -------------
        (expected savings of $91 million over ten years); Midwest Resources,
                                                          -----------------
        Holding Co. Act Release No. 25159 (Sept. 26, 1990) (estimated savings of
        $25 million over five years); CINergy Corp., Holding Co. Act Release No.
                                      ------------
        26146 (Oct. 21, 1994) (estimated savings of approximately $1.5 billion
        over ten years).

                                       64
<PAGE>

          .    sharing of best practices and systems while also respecting each
               company's commitment to its local community and service
               territory,

          .    capturing synergies and economies of scale,

          .    growth through market extension and strategic acquisitions, and

          .    the benefits of more diversified economic, weather and market
               conditions.

     .    Strategic Fit and Compatibility. PECO Energy, with its generation
          focus and substantial number of distribution customers, and Unicom,
          with its distribution focus and substantial generation capacity, have
          complementary strategies and compatible corporate cultures and visions
          of the future of the energy business. The companies have a shared
          commitment to supporting and participating in competitive electric
          markets, are already competing in deregulated markets in their
          respective service territories and are prepared for industry
          restructuring.

     .    Foundation for Future Growth. The Merger is expected to provide the
          critical mass, and the development and operating infrastructure, to
          expand the broad and complementary unregulated businesses of PECO
          Energy and Unicom, with a focus on EWG development, energy-related
          infrastructure services, energy solutions and telecommunications. The
          merger is expected to enhance the flexibility of the companies to take
          advantage of new opportunities for unregulated businesses, including
          by:

          .    leveraging of infrastructure services over a broader customer
               base,

          .    capitalizing on opportunities in the telecommunications business,
               and,

          .    exploiting cross-selling opportunities in the unregulated energy
               solutions business.

     .    Cost Savings. Unicom and PECO believe that the merger will produce
          cost savings through the elimination of duplication in corporate and
          administrative programs, generation consolidation, greater
          efficiencies in the power marketing and trading business, unregulated
          ventures integration, improved purchasing power (non-fuel), and the
          combination of portions of the two workforces. Unicom and PECO
          estimate that the combined company will achieve regulated and
          unregulated net annual cost savings of approximately $100 million in
          the first year following completion of the merger, increasing to
          approximately $180 million by the third year. Approximately 60% of
          these savings will be attributable to regulated activities and the
          remainder to unregulated activities. Estimated savings include only
          those cost savings and cost avoidance items management expects to
          achieve as a result of the merger.

       Nuclear Coordination. The potential benefits associated with the
       ----------------------
integration of the nuclear operations of ComEd and PECO will be particularly
significant.  As the licensed owner

                                       65
<PAGE>

and operator of the nuclear power plants currently owned and operated by ComEd
and PEC, Genco will be subject to pervasive regulatory oversight by the NRC
under the Atomic Energy Act of 1954, as amended, ("AEA") with respect to
virtually every aspect of the operation, maintenance, and eventual
decommissioning of these plants. As described in the license transfer
applications submitted to the NRC in connection with the Merger, the
qualifications of Genco to carry out its licensed responsibilities will meet or
exceed the existing qualifications of ComEd and PECO and enhance the safety of
nuclear operations throughout the Exelon system./125/ The Merger will combine
two of the nation's most experienced nuclear management teams and nuclear
operating organizations, currently consisting of over 9,600 personnel
responsible for the operation of 14 nuclear plants with a total generating
capacity in excess of about 14,000 MW, with demonstrated experience in achieving
and sustaining safe and reliable nuclear plant operations, into a single nuclear
operating group in Genco.

     In accordance with the requirements imposed under the AEA and NRC
regulations, this integrated nuclear group will be led by an experienced and
dedicated nuclear management team that establishes and enforces high standards
and clear accountability, focuses on effective nuclear support, assures the
sharing and implementation of best practices, and effectively exercises
oversight of licensed activities.  The Genco nuclear group will function as a
single cohesive entity, with a common vision, a shared mandate for regulatory
compliance and performance excellence, and consistent standards, programs,
practices, and management controls designated to sustain and enhance the safety
of nuclear operations.  Additional personnel, resources, and nuclear operating
experience will become available to all of ComEd's and PECO's existing nuclear
plants through the nuclear group.

     Thus, the establishment of the Genco nuclear group in connection with the
merger will not only improve the efficiency of economy of nuclear power plant
operations throughout the Exelon system, it will also further the public
interest by enhancing the safety of nuclear operations throughout the system.

          (c)  Section 10(f) -- Compliance with State Law

     Section 10(f) provides that:

               The Commission shall not approve any acquisition as to which an
               application is made under this section unless it appears to the
               satisfaction of the Commission that such State laws as may apply
               in respect of such acquisition have been

___________________________
/125/      The NRC recently adopted new procedures to streamline its license
transfer proceedings and facilitate the transfer of NRC licenses to technically
and financially qualified licensees as the restructuring of the electric utility
industry unfolds. See  Streamlined Hearing Process for NRC Approval of License
                  ---  -------------------------------------------------------
Transfers, 63 Fed. Reg. 66723 (Dec. 3, 1998).   As Commissioner Merrifield of
- ---------
the NRC observed in a speech several weeks after the merger between Unicom and
PECO was announced:  "As I have said on several occasions, I view the
consolidation in the nuclear industry as a tremendous opportunity to further
improve the operational performance and safety of these plants.  In most of the
transactions, I expect that the buyers will be large nuclear generating
companies that own and operate a substantial number of nuclear units.  These
buyers have economies of scale and resources that are simply not available to
companies that own and operate only one nuclear unit.  I am also truly
encouraged by the fact that most of the license transfers will likely involve
buyers with excellent performance records."  See Statement of NRC Commissioner
                                             ---
Jeffrey S. Merrifield, 27/th/ Water Reactor Safety Information Meeting (Oct. 25,
1999).

                                       66
<PAGE>

               complied with, except where the Commission finds that compliance
               with such State laws would be detrimental to the carrying out of
               the provisions of section 11.

     As described below under Item 4.  "Regulatory Approvals," and as evidenced
by the filings before the Illinois Commission and the Pennsylvania Commission,
ComEd and PECO intend to comply with all applicable State laws related to the
Merger.

     C.   Intra-system Transactions

          The Exelon system companies will engage in a variety of affiliate
transactions for the provision of goods, services, and construction.  Certain of
these transactions are elaborated upon below.  The provision of goods, services,
and construction by Exelon system companies to other Exelon system companies
will be carried out in accordance with the requirements and provisions of Rules
87, 90, and 91 unless otherwise authorized by the Commission by order or by
rule.

     1.  Exelon Services, Inc.

     Rule 88(b) provides that "[a] finding by the Commission that a subsidiary
company of a registered holding company.  .  . is so organized and conducted, or
to be so conducted, as to meet the requirements of Section 13(b) of the Act with
respect to reasonable assurance of efficient and economical performance of
services or construction or sale of goods for the benefit of associate
companies, at cost fairly and equitably allocated among them (or as permitted by
[Rule] 90), will be made only pursuant to a declaration filed with the
Commission on Form U-13-1, as specified in the instructions for that form, by
such company or the persons proposing to organize it." Notwithstanding the
foregoing language, the Commission in recent cases has made findings under
Section 13(b) based on information set forth in an Application-Declaration on
Form U- 1, without requiring the formal filing of a Form U-13-1./126/  In this
Application-Declaration, Applicant is submitting substantially the application
information as would have been submitted in a Form U-13-1.  Accordingly, it is
submitted that it is appropriate to find that Exelon Services will be so
organized and shall be so conducted as to meet the requirements of Section
13(b), and that the filing of a Form U-13-l is unnecessary, or, alternatively,
that this Application-Declaration should be deemed to constitute a filing on
Form U-13-1 for purposes of Rule 88.

     Exelon Services/127/ will be the service company subsidiary for the Exelon
system and will provide Exelon, ComEd, PECO, Genco and non-utility subsidiaries
with one or more of the following: administrative, management and support
services, including services relating to support of electric and gas plant
operations (i.e., energy supply management of the bulk power and natural gas
            -----
supply, procurement of fuels, coordination of electric and natural gas
distribution systems, maintenance, construction and engineering work); customer
bills, and related matters; materials management; facilities; real estate;
rights of way; human resources; finance; accounting; internal auditing;
information systems; corporate planning and research; public


__________________________

/126/   New Century Energies; Ameren; CINergy Corp.; UNITIL Corp., supra.
        --------------------  ------  -------------  --------------------

/127/   As noted above, Exelon may have one or more specialized service
        companies in addition to Exelon Services. Exelon will provide
        information regarding any other service company by amendment hereto.

                                       67
<PAGE>

affairs; corporate communications; legal; environmental matters; executive
services and the other services listed on Schedule 2 to the General Service
Agreement./128/

     In accordance with the General Service Agreement, services provided by
Exelon Services will be directly assigned, distributed or allocated by activity,
project, program, work order or other appropriate basis. To accomplish this,
employees of Exelon Services will record their labor and expenses to bill the
appropriate subsidiary company. Costs of Exelon Services will be accumulated in
accounts of the service company and be directly assigned, distributed, or
allocated to the appropriate client company in accordance with the guidelines
set forth in the General Services Agreement and the procedures in the
"Procedures Manual" which has been provided to the Staff. There will be an
internal audit group which, among other things, will audit the assignment of
service company charges to client companies. Exelon Services' accounting and
cost allocation methods and procedures are structured so as to comply with the
Commission's standards for service companies in registered holding company
systems.

     Exelon Services will be staffed primarily by existing personnel and by
transferring personnel from the current employee rosters of Unicom, PECO and
their subsidiaries.  It is expected that Exelon Services will conduct
substantial operations in Chicago and Philadelphia.  Merger transition teams are
presently considering where specific operations of the combined company will be
headquartered.

     As compensation for services, the General Service Agreement provides that
"Client Companies listed in Attachment A hereto, as amended from time to time,
shall pay to Service Company [i.e., Exelon Services] all costs which reasonably
                              ----  ---------------
can be identified and related to particular services provided by Service Company
for or on Client Company's behalf (except as may otherwise be permitted by the
SEC)."

     Companies listed on Attachment A will be ComEd, PECO, Genco and any other
company which is a "public utility company" within the meaning of the Act and
which operates within the United States (the "Operating Companies") as well as
any subsidiary that is involved in directly providing goods, construction or
services to the Operating Companies (together with the Operating Companies, the
"Utility Subsidiaries").

     The General Services Agreement also provides that "Client Companies listed
on Attachment B hereto, as amended from time to time, shall pay to Service
Company charges for services that are to be no less than cost (except as may
otherwise be permitted by the SEC), insofar as costs can reasonably be
identified and related by Service Company to its performance of particular
services for or on behalf of Client Company."



___________________________
/128/   Applicants may also establish a GenServCo subsidiary to house the
        employees who will operate and maintain the GenCo generating facilities
        and perform other activities for GenCo. The GenServCo will pay the
        salaries of its employees and be responsible for the administration of
        all employee benefit plans. GenCo will reimburse GenServCo for its
        expenses on a full cost basis in accordance with the requirements
        imposed by Section 13 of the Act and the Commission Rules promulgated
        thereunder. If Applicants decide to create a separate GenServCo they
        will file an amendment to this Application which will include a services
        agreement in a form that is substantively similar to the General
        Services Agreement included as Exhibit B-2 to this Application.
        Applicants are not now requesting approval of the proposed GenServCo.

                                       68
<PAGE>

     The companies listed on Attachment B will be subsidiaries that Exelon is
authorized to hold, other than the Utility Subsidiaries, such as EWGs, FUCOs,
Exempt Telecommunications Companies ("ETCs"), and Energy Related Companies
("ERCs") permitted under Rule 58 or by Commission order, certain intermediate
companies/129/ and other entities which are not involved in directly providing
goods, construction or services to Utility Subsidiaries (collectively, the "Non-
utility Subsidiaries").

     Where more than one company is involved in or has received benefits from a
service performed, the General Service Agreement will provide that the such
costs "shall be fairly and equitably allocated using the ratios set forth" in
the General Service Agreement. Thus, charges for all services provided by Exelon
Services to affiliated utility companies will be as determined under Rules 90
and 91 of the Act. Except for the requested exceptions discussed below, services
provided by Exelon Services to Non-Utility Subsidiaries pursuant to the General
Services Agreement will also be charged as determined under Rules 90 and 91 of
the Act. In the event that any changes to the General Service Agreement or
allocations are needed to more accurately allocate costs to ComEd, PECO, Genco
or other affiliates, Applicant will propose such changes to the Commission as
they become known.

     The General Services Agreement provides that no change in the organization
of Exelon Services, the type and character of the companies to be serviced, the
factors for allocating costs to associate companies, or in the broad categories
of services to be rendered subject to Section 13 of the Act, or any rule,
regulation or order thereunder, shall be made unless and until Exelon Services
shall first have given the Commission written notice of the proposed change not
less than 60 days prior to the proposed effectiveness of any such change. If,
upon the receipt of any such notice, the Commission shall notify Exelon Services
within the 60-day period that a question exists as to whether the proposed
change is consistent with the provisions of Section 13 of the Act, or of any
rule, regulation or order thereunder, then the proposed change shall not become
effective unless and until Exelon Services shall have filed with the Commission
an appropriate declaration regarding such proposed change and the Commission
shall have permitted such declaration to become effective.

     Applicant believes that the General Services Agreement is structured so as
to comply with Section 13 of the Act and the Commission's rules and regulations
thereunder.

     2.  Services, Goods, and Assets Involving the Utility Operating Companies

     ComEd, PECO and Genco may provide to one another and other associate
companies services incidental to their utility businesses, including but not
limited to, infrastructure services maintenance, storm outage emergency repairs,
and services of personnel with specialized expertise related to the operation of
the utility. These services will be provided in accordance

____________________
/129/   Exelon will file a separate Application-Declaration seeking authority to
        establish certain Non-utility subsidiaries that will be authorized to
        engage in permitted activities under Rule 58 and otherwise which will
        include a request that "intermediate companies" also be allowed for
        organizational, tax, limitation of liability, international
        considerations and other proper business purposes. See, e.g., Interstate
                                                                      ----------
        Energy Corporation, Holding Company Act Release No. 35-27069 (Aug. 26,
        ------------------
        1999); Ameren Corporation, Holding Company Act Release No. 35-27053
               ------------------
        (July 23, 1999); Entergy Corporation, Holding Company Act Release No.
                         -------------------
        27039 (June 22, 1999); New Century Energies, Inc., Holding Company Act
                               --------------------------
        Release No. 35-27000 (Apr. 7, 1999).

                                       69
<PAGE>

with Rules 87, 90, and 91. Moreover, in accordance with Rules 87, 90, and 91,
certain goods may be provided through a leasing arrangement or otherwise by one
Utility Subsidiary to one or more associate companies, and certain assets may be
used by one Utility Subsidiary for the benefit of one or more other associate
companies.

     3.  Non-utility Subsidiary Transactions

     The Applicant requests authorization for Exelon Services and the Non-
utility Subsidiaries to enter into agreements to provide construction, goods or
services to certain associate companies enumerated below at fair market prices
determined without regard to cost and therefore requests an exemption (to the
extent that Rule 90(d) of the Act does not apply/130/) under Section 13(b) from
the cost standards of Rules 90 and 91 as applicable to the following
transactions, if the client company is:

     1)   a FUCO or an EWG that derives no part of its income, directly or
          indirectly, from the generation, transmission, or distribution of
          electric energy for sale within the United States;

     2)   an EWG that sells electricity at market-based rates which have been
          approved by the FERC or other appropriate State public utility
          commission, provided that the purchaser of the EWG's electricity is
          not an affiliated public utility or an affiliate that re-sells such
          power to an affiliated public utility;

     3)   a qualifying facility ("QF ") under the Public Utility Regulatory
          Policies Act of 1978 ("PURPA") that sells electricity exclusively at
          rates negotiated at arm's length to one or more industrial or
          commercial customers purchasing such electricity for their own use and
          not for resale, or to an electric utility company other than an
          affiliated electric utility at the purchaser's "avoided cost"
          determined under PURPA;

     4)   an EWG or a QF that sells electricity at rates based upon its costs of
          service, as approved by FERC or any State public utility commission
          having jurisdiction, provided that the purchaser of the electricity is
          not an affiliated public utility; or

     5)   an ETC, an ERC under Rule 58 or any other Non-utility Subsidiary that
          (a) is partially owned, provided that the ultimate purchaser of goods
          or services is not a Utility Subsidiary, (b) is engaged solely in the
          business of developing, owning, operating and/or providing services or
          goods to Non-utility Companies described in (1) through (4) above, or
          (c) does not derive, directly or indirectly, any part of its


_____________________________
/130/   Under Rule 90(d)(1), the price of services, construction or goods is not
                                                                             ---
        limited to cost if neither the buyer nor the seller of such services,
        construction or goods is (i) a public-utility holding company, (ii) an
        investment or similar company as defined in the Rule, (iii) a company in
        the business of selling goods to associate companies or performing
        services or construction (i.e., a "service company") or (iv) any company
        controlling an entity described in (i), (ii) or (iii). In general,
        therefore, goods, services or construction provided from one Non-utility
        Subsidiary to other Non-utility Subsidiaries (other than any service
        company) are not subject to the cost restrictions and may be priced at
        market, which may be above or below cost. A Non-utility Subsidiary would
        generally be permitted to make such sales of goods, services or
        construction to another Non-utility Subsidiary under Rule 87(b).

                                       70
<PAGE>

          income from sources within the United States and is not a public-
          utility company operating within the United States.

     The Commission has granted requests for exemption from the Commission's "at
cost" requirements for proposed transactions that are substantively similar to
the Applicant's proposal above./131/  Like the proposals previously approved,
Applicant's proposal will protect its Utility Subsidiaries and their customers
from the possibility that an abuse of the affiliate relationships between or
among the Exelon companies could result in excessive charges to a public
utility, or be passed on to the utility's customers.

     4.  Existing and Anticipated Affiliate Arrangements and Requests for
Exemption.

     ComEd currently provides to or receives services from affiliates in
accordance with an Affiliated Interests Agreement ("AIA") approved by the
Illinois Commission. PECO has filed a form of Mutual Services Agreement with the
Pennsylvania Commission seeking approval for it to provide and receive services
from affiliates. Each of these contracts (including the parties) is described in
Exhibit B-3.

     Under the Illinois AIA, ComEd may provide services to affiliates, and
affiliates may provide services to ComEd, at the "prevailing price," which, as
defined in the AIA, is substantially a market price,/132/  or if there is no
prevailing price, then at fully distributed cost, which is substantially the
same as "cost" as defined under the Act.

     Under the AIA ComEd has a contract with Unicom Energy Services ("UES")
under which it acquires services at the prevailing price. Under this contract,
UES provides service to ComEd in connection with a contracts that ComEd has with
certain U.S. governmental agencies to provide energy management, demand side
management and energy conservation and efficiency services. These services
include energy audits, feasibility analyses, engineering and design and
implementation. All services required to be provided by ComEd to the
governmental entities are provided to ComEd by UES at a prevailing price. To the
extent required, Exelon seeks an exemption or waiver from applicable provisions
of the Act for ComEd to continue this arrangement.

     Under Illinois law regulated distribution utilities such as ComEd are
authorized to provide certain competitive services to affiliates and
unaffiliated parties. These services include any service "declared to be
competitive" by the Illinois Commission, "contract service" for the provision of
electric power and energy or other services provided by mutual agreement between

___________________________
/131/  Interstate Energy Corporation, Holding Company Act Release No. 35-27069
       ------------------------------
       (Aug. 26, 1999); Ameren Corporation, Holding Company Act Release No. 35-
                        ------------------
       27053 (July 23, 1999); Entergy Corporation, Holding Company Act Release
                              -------------------
       No. 27039 (June 22, 1999); Entergy Corporation, Holding Company Act
                                  -------------------
       Release No. 27040 (June 22, 1999); New Century Energies, Inc., Holding
                                          ---------------------------
       Company Act Release No. 35-27000 (Apr. 7, 1999).

/132/  Under the AIA, "prevailing price" means, for the utility, the tarrifed
       rate or other pricing mechanism approved by the Illinois Commission, and
       for ComEd's Unicom affiliates, the price charged to nonaffiliates if such
       transactions with nonaffiliate constitute a substantial portion of the
       affiliate's total revenues from such transactions.

                                       71
<PAGE>

an electric utility and a retail customer, and "services, other than tariffed
services, that are related to but not necessary for, the provision of electric
power and energy or delivery services." ("Competitive Services")./133/ The price
at which Competitive Services may be sold by the utility is not limited to cost.

    Competitive Services are accounted for on a so-called "below the line"
basis, that is, the costs associated with such services may not be included in
the utility's calculation of cost for rate making purposes. Any profit or loss
on these activities would be disregarded for utility rate making purposes. In
effect, these activities are conducted as if they were conducted by a separate
nonregulated "subsidiary" except that the corporate entity of the utility
company is the actual party to the transactions. Accordingly, under Illinois law
customers are fully protected from the possibility that an abuse of the
affiliate relationships between or among ComEd and any of the other Exelon
companies could result in excessive charges to ComEd, or be passed on to its
customers.

    Applicant requests authorization for ComEd to enter into agreements with
affiliates to provide Competitive Services and to acquire goods or services from
affiliates related to Competitive Services at fair market prices determined
without regard to cost and therefore requests an exemption under Section 13(b)
from the cost standards of Rules 90 and 91 as applicable.

    PECO  Government contracts. PECO seeks a waiver similar to ComEd's
prevailing price standard in order to permit PECO or its subsidiaries to provide
energy services to U.S. governmental agencies at rates approved by the
Pennsylvania Commission.

    PECO Sales and Purchases To and From Retail Marketing Affiliates.  Under the
    -----------------------------------------------------------------
proposed Pennsylvania Mutual Service Agreement, most transactions between
affiliates will be made at cost, in accordance with the Pennsylvania
Commission's regulations. However, transactions involving non-power goods and
services between the regulated electric distribution company (PECO) and its
retail marketing affiliate(s) protect the regulated utility by requiring PECO to
sell non-power goods and services to its affiliated retail marketing entities at
the greater of cost or market and requiring PECO to purchase non-power goods and
services from those entities at prices no higher than market in order to prevent
anti-competitive cross subsidies. This standard is required by Appendix H
(Interim Code of Conduct) of PECO's Pennsylvania Commission approved
restructuring settlement in Docket Nos. R-00973953 and P-00971265.

    Applicant does not believe that there will ordinarily be any conflict
between the Commission's cost rules and the Pennsylvania Commission approved
inter-affiliate cost allocation rules. To address the rare circumstances in
which the Commission's cost rule and the Mutual Services Agreement (reflecting
the terms of PECO's Pennsylvania restructuring settlement) may conflict, PECO
proposes to implement a practice that will mitigate any such conflict. Under the
proposed procedure PECO will only sell non-power goods or services to its retail
marketing affiliate when its cost is substantially equal to the market price for
the services or goods in question./134/ PECO will only purchase non-power goods
and services from its retail marketing affiliate when the at-cost price offered
by that affiliate is at or below the market price for the same goods or
services. The proposed procedure will protect customers who receive

_____________________________
/133/  220 ILCS 16-102

/134/  If the utility's cost is below market, it would not be permitted to sell
       at cost under Pennsylvania rules, but would be prohibited from selling at
       market by the Commission's rules.

                                       72
<PAGE>

service from PECO's regulated entity from any potential for abuse of the
affiliate relationship and ensure that regulated services are not used to
subsidize competitive activities. PECO requests that, in its Order, the
Commission find the proposed measures comply with its "at cost" rules (Rules 90
and 91), or grant a limited waiver therefrom, as appropriate.

     Public Interest. The Illinois Commission has found, and the Pennsylvania
     ----------------
Commission is expected to find in connection with its review of the Merger, that
the AIA and the Mutual Services Agreement are reasonable and are in the public
interest.  The Commission's principal concern under Section 13 of the Act is to
protect utility companies in a holding company system from abusive cross-
subsidization transactions between associate companies.  Since Applicant and its
affiliates will not be able to engage in transactions under State law until the
Illinois Commission or the Pennsylvania Commission will have found that all the
aforementioned contracts are reasonable and are in the public interest, cross-
subsidization issues will not arise under these agreements, and each should be
permitted to continue./135/  Applicant emphasizes that the bundled rate
distribution customers of ComEd and PECO are protected from increases in rates
for proscribed periods because of the rate cap or rate freeze in effect in those
States as described elsewhere in this Application-Declaration.

Item. 4.    Regulatory Approvals

     Set forth below is a summary of the regulatory approvals that Applicant
expects to obtain in connection with the Merger.  It is a condition to the
consummation of the Merger that final orders relating to the Merger be obtained
from the Commission under the Act and from the various Federal and State
commissions described below and that those orders not impose terms or conditions
which, individually or in the aggregate, could reasonably be expected to have a
material adverse affect on Exelon and its prospective subsidiaries taken as a
whole or which would be materially inconsistent with the agreements of the
parties to the Merger Agreement.



/135/  The Commission is authorized to grant exemptions or waiver of the at cost
       rules that involve special or unusual circumstances or are not in the
       ordinary course of business." Section 13(b)(2) of the Act. See Dominion
                                                                      --------
       Resources, Inc., Holding Company Act Release No. 35-27113 (Dec. 15,
       ---------------
       1999). See also, In Entergy Corporation, Holding Co. Release No. 27040
                           -------------------
       (June 22, 1999), the Commission addressed its flexibility in
       administering Section 13 in the context of Entergy's Settlement Agreement
       with several regulators. The Commission allowed Entergy's regulated
       utilities to provide services to non-utility businesses at cost of
       service plus five percent. In reaching its decision, the Commission
       recognized that the Act's statutory provisions afforded the Commission
       the "necessary flexibility to deal with changing circumstances." The
       Commission has used this flexibility several times. See, e.g., New
                                                                      ---
       England Electric System, Holding Co. Release No. 22309 (Dec. 9, 1981)
       -----------------------
       (authorizing the price or charter rental of a good or service to be 90%
       of a market rate); Blackhawk Coal Co., Holding Co. Release No. 23834
                          -----------------
       (Sept. 20, 1985) (authorizing market-based cap on prices paid for coal
       purchased from coal mining affiliate); Columbus Southern Power Co.,
                                              --------------------------
       Holding Co. Release No. 25326 (June 5, 1991) (authorizing sale of spare
       parts at replacement cost); EUA Cogenex Corp., Holding Co. Release No.
                                   ----------------
       26373 (Sept. 14, 1995) (authorizing sale of goods or services at prices
       not to exceed market prices); and EUA Cogenex Corp., Holding Co. Release
       No. 26469 (Feb. 6, 1996) (authorizing provision of goods or services at
       prices not to exceed market prices). The Commission should again exercise
       its flexibility to approve Applicants' waiver request in order to comply
       with applicable Illinois and Pennsylvania commission orders.

                                       73
<PAGE>

  A. Antitrust

     The HSR Act and the rules and regulations thereunder prohibit certain
transactions (including the Merger) until certain information has been submitted
to the Antitrust Division of the Department of Justice ("DOJ") and Federal Trade
Commission ("FTC") and the specified HSR Act waiting period requirements have
been satisfied. Unicom and PECO submitted the Notification and Report Forms and
all required information to the DOJ and FTC in January 2000.

     The expiration or earlier termination of the HSR Act waiting period does
not preclude the DOJ or the FTC from challenging the Merger on antitrust
grounds.  Applicant believes that the Merger will not violate Federal antitrust
laws.

  B. Federal Power Act

     Section 203 of the Federal Power Act provides that no public utility shall
sell or otherwise dispose of its jurisdictional facilities or directly or
indirectly merge or consolidate such facilities with those of any other person
or acquire any security of any other public utility, without first having
obtained authorization from FERC.  Under Section 203 of the Federal Power Act,
FERC will approve a merger if it finds that merger "consistent with the public
interest."  In reviewing a merger, FERC evaluates three factors: (i) whether the
merger will adversely affect competition, (ii) whether the merger will adversely
affect cost based power or transmission rates, and (iii) whether the merger will
impair the effectiveness of regulation.  On November 22, 1999, ComEd and PECO
filed a combined application with FERC requesting FERC to approve the Merger
under Section 203 of the Federal Power Act.

     On December 16 and December 22, 1999, PECO and ComEd, respectively, filed
separate applications with FERC requesting FERC to authorize the transfer of
jurisdictional assets associated with the companies' Restructurings.  The
Restructurings include plans to establish Genco and to separate  generation and
marketing from transmission and distribution businesses.  FERC was informed that
the transfers are expected to occur about the time the Merger becomes effective.
ComEd and PECO anticipate that they will receive the requested authorizations in
advance of the Merger's effective date.  In addition, the Conowingo Companies
hold certain hydroelectric project licenses under the FPA.  The transfer of the
utility assets and liabilities of the Conowingo Companies will constitute
transfers of the hydroelectric project licenses, requiring approval of FERC.

  C. Atomic Energy Act

     ComEd, PECO and AmerGen hold NRC operating licenses in connection with
their ownership and/or operation of various nuclear generating facilities.  The
operating licenses authorize the holder to own and operate the facilities.  The
AEA provides that a license or any rights thereunder may not be transferred or
in any manner disposed of, directly or indirectly, to any person through
transfer of control unless the NRC finds that such transfer is in accordance
with the AEA and consents to the transfer.  Pursuant to the AEA, ComEd and PECO
have applied for approval from the NRC to reflect the fact that after the
Merger, Genco will be the owner and operator of the facilities and Exelon will
be the parent company of Genco.  AmerGen

                                       74
<PAGE>

has also applied for NRC approval in connection with the Transfer of PECO's
interest in AmerGen to Genco.

  D. State Public Utility Regulation

     ComEd is currently subject to the jurisdiction of the Illinois Commission.
PECO is subject to the jurisdiction of the Pennsylvania Commission.  Genco,
although a "public-utility company" under the Act will not be a public utility
subject to jurisdiction by either the Illinois Commission or the Pennsylvania
Commission.  PECO has filed an application for approval of the Merger and
related matters with the Pennsylvania Commission.  ComEd made its required
notice filing with the Illinois Commission outlining the terms of the Merger on
November 22, 1999.

     Further filings have been or will be made with the Illinois Commission and
the Pennsylvania Commission regarding the Restructurings.

  E. Other

     ComEd and PECO possess municipal franchises and environmental permits and
licenses that they may need to assign or replace as a result of the Merger.
ComEd and PECO do not anticipate any difficulties obtaining such assignments,
renewals and replacements.  Except as set forth above, no other State or local
regulatory body or agency and no other Federal commission or agency has
jurisdiction over the transactions proposed herein.

     Finally, pursuant to Rule 24 under the Act, the Applicant represents that
the transactions proposed in this filing shall be carried out in accordance with
the terms and conditions of, and for the purposes stated in, the declaration-
application no later than August 1, 2000.

Item. 5.    Procedure

     The Commission is respectfully requested to publish, not later than April
15, 2000, the requisite notice under Rule 23 with respect to the filing of this
Application-Declaration, such notice to specify a date not later than May 15,
2000, by which comments must have been entered and a date on or after June 1,
2000, as the date when an order of the Commission granting and permitting this
Application-Declaration to become effective may be entered by the Commission.

     It is submitted that a recommended decision by a hearing or other
responsible officer of the Commission is not needed for approval of the Merger.
The SEC Staff may assist in the preparation of the Commission's decision. There
should be no waiting period between the issuance of the Commission's order and
the date on which it is to become effective.

Item. 6.    Exhibits and Financial Statements

  A. Exhibits

<TABLE>
<CAPTION>
     ----------------------------------------------------------------------------------------------------------------------------
            Exhibit No.               Description of Document                                 Method of Filing
     ----------------------------------------------------------------------------------------------------------------------------
     <S>                              <C>                                                     <C>
</TABLE>

                                       75
<PAGE>

<TABLE>
     <S>                  <C>                                                    <C>
     ----------------------------------------------------------------------------------------------------------------------------
     A-1                  Restated Articles of Incorporation of Exelon           Incorporated by reference to S-4 Registration
                                                                                 Statement, Exhibit C-1
     ----------------------------------------------------------------------------------------------------------------------------
     A-2                  Restated Articles of Incorporation of ComEd            Incorporated by reference; File No. 1-1839,
                          effective February 20, 1985, including Statements of   Unicom Form 10-K for the year ended December
                          Resolution Establishing Series, relating to the        31, 1994, Exhibit (3)-2.
                          establishment of three new series of ComEd
                          preference stock known as the "$9.00 Cumulative
                          Preference Stock," the "$6.875 Cumulative Preference
                          Stock" and the "$2.425 Cumulative Preference Stock."
     ----------------------------------------------------------------------------------------------------------------------------
     A-3                  Restated Articles of Incorporation of PECO             Incorporated by reference; File No. 1-1401,
                                                                                 PECO 1993 Form 10-K, Exhibit 3-1
     ----------------------------------------------------------------------------------------------------------------------------
     B-1                  Amended and Restated Agreement and Plan of Exchange    Incorporated by reference; Annex 1 to Exhibit
                          and Merger (Merger Agreement)                          C-1
     ----------------------------------------------------------------------------------------------------------------------------
     B-2                  Form of General Services Agreement                     Filed herewith
     ----------------------------------------------------------------------------------------------------------------------------
     B-3                  Description of existing agreements under State         Filed by amendment
                          approved affiliated interest agreements
     ----------------------------------------------------------------------------------------------------------------------------
     C-1                  Registration Statement of Exelon on Form S-4           Incorporated by reference; Registration
                                                                                 Statement No. 333-________. (To be filed under
                                                                                 the Securities Act mid-April, 2000)
     ----------------------------------------------------------------------------------------------------------------------------
     C-2                  Joint Proxy Statement and Prospectus of Unicom and     Incorporated by reference; included in Exhibit
                          PECO                                                   C-1
     ----------------------------------------------------------------------------------------------------------------------------
     D-1.1                Joint Application of ComEd and PECO to FERC re         Filed herewith
                          Merger (excluding exhibits and testimony which
                          Applicant will supply upon request of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-1.2                Direct Testimony of Dr. William H. Heironymous         Filed herewith
                          (Exhibit No. APP-300 to FERC Joint Application).
     ----------------------------------------------------------------------------------------------------------------------------
     D-1.3                Order of FERC approving the Merger                     Filed by amendment
     ----------------------------------------------------------------------------------------------------------------------------
     D-1.4                Application of ComEd to FERC for Authority to          Filed herewith
                          Transfer Jurisdictional Assets ("Restructuring
                          Filing")
     ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       76
<PAGE>

<TABLE>
     <S>                  <C>                                                    <C>
     ----------------------------------------------------------------------------------------------------------------------------
                          (excluding exhibits and testimony which
                          Applicant will supply upon request of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-1.5                Application of PECO to FERC for Authority to           Filed herewith
                          Transfer Jurisdictional Assets ("Restructuring
                          Filing") (excluding exhibits and testimony which
                          Applicant will supply upon request of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-2.1                Application of PECO before the Pennsylvania            Filed herewith
                          Commission regarding the Merger (excluding exhibits
                          and testimony which Applicant will supply upon
                          request of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-2.2                Order of the Pennsylvania Commission approving the     Filed by amendment
                          Merger
     ----------------------------------------------------------------------------------------------------------------------------
     D-2.3                Application of PECO before Pennsylvania Commission     Filed herewith; included in Exhibit D-2.1
                          regarding Restructuring. (excluding exhibits and
                          testimony which Applicant will supply upon request
                          of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-3.1                Notice of ComEd to the Illinois Commission regarding   Filed herewith
                          the Merger (excluding exhibits and attachments which
                          Applicant will supply upon request of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-3.2                Application of ComEd to the Illinois Commission        Filed by amendment
                          regarding Restructuring  (excluding exhibits and
                          testimony which Applicant will supply upon request
                          of the Commission)
     ----------------------------------------------------------------------------------------------------------------------------
     D-4.1                Application of PECO, ComEd and AmerGen to the NRC      Filed herewith
                          regarding transfer of nuclear generating operating
                          licenses
     ----------------------------------------------------------------------------------------------------------------------------
     D-4.2                Order of the NRC finding that the transfer of          Filed by amendment
                          certain operating licenses in connection with the
                          Merger is in compliance with The Atomic Energy Act
                          and consenting to such transfers
     ----------------------------------------------------------------------------------------------------------------------------
     E-1                  Maps of service area and transmission system of ComEd  Filed in paper under Form SE
     ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       77
<PAGE>

<TABLE>
     <S>                  <C>                                                    <C>
     ----------------------------------------------------------------------------------------------------------------------------
     E-2                  Maps electric and gas service areas and transmission   Filed in paper under Form SE
                          system of PECO
     ----------------------------------------------------------------------------------------------------------------------------
     E-3                  Unicom corporate chart                                 Filed in paper under Form SE
     ----------------------------------------------------------------------------------------------------------------------------
     E-4                  PECO corporate chart                                   Filed in paper under Form SE
     ----------------------------------------------------------------------------------------------------------------------------
     E-5                  Exelon Company corporate chart                         Filed by amendment
     ----------------------------------------------------------------------------------------------------------------------------
     F-1                  Preliminary opinion of counsel to Exelon               Filed by amendment
     ----------------------------------------------------------------------------------------------------------------------------
     F-2                  Past-tense opinion of counsel to Exelon                Filed by amendment
     ----------------------------------------------------------------------------------------------------------------------------
     G-1                  Opinion of Wasserstein Perella & Co.                   Incorporated by reference; Annex 4 to S-4
                                                                                 Registration Statement, Exhibit C-1
     ----------------------------------------------------------------------------------------------------------------------------
     G-2                  Opinion of Salomon Smith Barney Inc.                   Incorporated by reference; Annex 3 to S-4
                                                                                 Registration Statement, Exhibit C-1
     ----------------------------------------------------------------------------------------------------------------------------
     G-3                  Opinion of Morgan Stanley & Co.                        Incorporated by reference; Annex 2 to S-4
                                                                                 Registration Statement, Exhibit C-1
     ----------------------------------------------------------------------------------------------------------------------------
     H-1                  Annual Report of Unicom on Form 10-K for the year      Incorporated by reference, File No. 1-11375
                          ended December 31, 1998
     ----------------------------------------------------------------------------------------------------------------------------
     H-2                  Annual Report of PECO on Form 10-K for the year        Incorporated by reference, File No. 1-1401
                          ended December 31, 1998
     ----------------------------------------------------------------------------------------------------------------------------
     H-3                  Quarterly Reports of Unicom on Form 10-Q for the       Incorporated by reference, File No. 1-11375
                          quarters ended March 31, 1999, June 30, 1999 and
                          September 30, 1999
     ----------------------------------------------------------------------------------------------------------------------------
     H-4                  Quarterly Reports of PECO on Form 10-Q for the         Incorporated by reference, File No. 1-1401
                          quarters ended March 31, 1999, June 30, 1999 and
                          September 30, 1999
     ----------------------------------------------------------------------------------------------------------------------------
     I-1                  List and Description of Subsidiaries and Investments   Filed herewith
                          Of Unicom Corporation (Other than "Public-Utility"
                          Companies)
     ----------------------------------------------------------------------------------------------------------------------------
     I-2                  List and Description of Subsidiaries and Investments   Filed herewith
                          Of PECO Energy (Other than "Public-Utility"
                          Companies)
     ----------------------------------------------------------------------------------------------------------------------------
     J-l                  Analysis of the Economic Impact of a Divestiture of    Filed herewith
                          the Gas Operations of PECO Energy Company
     ----------------------------------------------------------------------------------------------------------------------------
     K-1                  Analysis of How the Interconnection Requirement of     Filed herewith
                          PUHCA is Satisfied by OATTs and OASIS
                          ("Interconnection
     ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       78
<PAGE>

<TABLE>
     <S>                  <C>
     ----------------------------------------------------------------------------------------------------------------------------
                          Analysis")
     ----------------------------------------------------------------------------------------------------------------------------
     L-1                  Form of Notice of filing
     ----------------------------------------------------------------------------------------------------------------------------
</TABLE>


  B. Financial Statements

<TABLE>
<CAPTION>
     ----------------------------------------------------------------------------------------------------------------------------
            Statement No.                        Description                                    Method of Filing
     ----------------------------------------------------------------------------------------------------------------------------
     <S>                     <C>                                               <C>
     FS-1                    Historical consolidated financial statements of   Incorporated by reference to Annual Reports on
                             Unicom                                            Form 10-K for the years ended 1999,1998 and 1997
     ----------------------------------------------------------------------------------------------------------------------------
     FS-2                    Historical consolidated financial statements of   Incorporated by reference to Annual Reports on
                             PECO                                              Form 10-K for the years ended 1999,1998 and 1997
     ----------------------------------------------------------------------------------------------------------------------------
     FS-3                    Unaudited Pro Forma Financial Statements of       Incorporated by reference; S-4 Registration
                             Exelon, giving effect to the Merger               Statement, Exhibit C-1
     ----------------------------------------------------------------------------------------------------------------------------
     ----------------------------------------------------------------------------------------------------------------------------
</TABLE>



Item. 7.  Information as to Environmental Effects

     The Merger neither involves "major federal actions" nor "significantly
[affects] the quality of the human environment" as those terms are used in
Section (2)(C) of the National Environmental Policy Act, 42 U.S.C. Sec. 4332.
The only Federal actions related to the Merger pertain to the Commission's
declaration of the effectiveness of the Joint Registration Statement, the
approvals and actions described under Item 4 and Commission approval of this
Application-Declaration.  Consummation of the Merger will not result in changes
in the operations of Unicom, ComEd or PECO that would have any impact on the
environment.  No Federal agency is preparing an environmental impact statement
with respect to this matter.

                                   SIGNATURE

     Pursuant to the requirements of the Public Utility Holding Company Act of
1935, the undersigned company has duly caused this Application-Declaration to be
signed on its behalf by the undersigned thereunto duly authorized.

                                       79
<PAGE>

                                                 Exelon Corporation




                                      By: /s/ Pamela B. Strobel
                                          --------------------------------------
Date: March 16, 2000

                                       80

<PAGE>

                                                                  Exhibit 99-B-2

                           GENERAL SERVICES AGREEMENT
                                    BETWEEN
                           _________ SERVICES COMPANY
                                      AND
  EXELON CORPORATION, COMMONWEALTH EDISON COMPANY AND ITS SUBSIDIARIES, UNICOM
 ENTERPRISES AND ITS SUBSIDIARIES, UNICOM RESOURCES AND ITS SUBSIDIARIES, PECO
ENERGY COMPANY AND ITS SUBSIDIARIES, AND [A GENERATION COMPANY TO BE NAMED AT A
                                  LATER DATE]

     THIS AGREEMENT, made and entered into this __ day of _________, 2000, by
and between the following Parties: _________ SERVICES COMPANY (hereinafter
sometimes referred to as "Service Company"), a ________ corporation; EXELON
CORPORATION, a Pennsylvania corporation; COMMONWEALTH EDISON COMPANY and its
subsidiaries, UNICOM ENTERPRISES and its subsidiaries, UNICOM RESOURCES and its
subsidiaries, PECO ENERGY COMPANY and its subsidiaries, and [A GENERATION
COMPANY TO BE NAMED AT A LATER DATE], (hereinafter sometimes referred to
collectively as "Client Companies");

     WITNESSETH:
<PAGE>

     WHEREAS, Client Companies, including EXELON CORPORATION, which has filed
for registration under the terms of the Public Utility Holding Company Act of
1935 (the "Act") and its other subsidiaries, desire to enter into this agreement
providing for the performance by Service Company for the Client Companies of
certain services as more particularly set forth herein;

     WHEREAS, Service Company is organized, staffed and equipped and has filed
with the Securities and Exchange Commission (the "SEC") to be a subsidiary
service company under Section 13 of the Act to render to EXELON CORPORATION, and
other subsidiaries of EXELON CORPORATION, certain services as herein provided;
and

     WHEREAS, to maximize efficiency, and to achieve merger related savings, the
Client Companies desire to avail themselves of the advisory, professional,
technical and other services of persons employed or to be retained by Service
Company, and to compensate Service Company appropriately for such services;

     NOW, THEREFORE, in consideration of these premises and of the mutual
agreements set forth herein, the Parties agree as follows:

Section 1. Agreement to Provide Services
- ----------------------------------------

     Service Company agrees to provide to Client Companies and their
subsidiaries, if any, upon the terms and conditions set forth herein, the
services hereinafter referred to and described in Section 2, at such times, for
such period and in such manner as Client Companies may from time to time
request.  Service Company will keep itself and its personnel available and
competent to provide to Client Companies such services so long as it is
authorized to do so by the appropriate federal and state regulatory agencies.
In providing such services, Service
<PAGE>

Company may arrange, where it deems appropriate, for the services of such
experts, consultants, advisers and other persons with necessary qualifications
as are required for or pertinent to the provision of such services.

Section 2. Services to be Provided
- ----------------------------------

     The services expected to be provided by Service Company hereunder may, upon
request by a Client Company, include the services as set out in Schedule 2,
attached hereto and made a part hereof.  In addition to those identified in
Schedule 2, Service Company shall provide such additional general or special
services, whether or not now contemplated, as Client Companies may request from
time to time and Service Company determines it is able to provide.

     Notwithstanding the foregoing paragraph, no change in the organization of
the Service Company, the type and character of the companies to be serviced, the
factors for allocating costs to associate companies, or in the broad general
categories of services to be rendered subject to Section 13 of the Act, or any
rule, regulation or order thereunder, shall be made unless and until the Service
Company shall first have given the SEC written notice of the proposed change not
less than 60 days prior to the proposed effectiveness of any such change.  If,
upon the receipt of any such notice, the SEC shall notify the Service Company
within the 60-day period that a question exists as to whether the proposed
change is consistent with the provisions of Section 13 of the Act, or of any
rule, regulation or order thereunder, then the proposed change shall not become
effective unless and until the Service Company shall have filed with the SEC an
appropriate declaration regarding such proposed change and the SEC shall have
permitted such declaration to become effective.
<PAGE>

Section 3. New Subsidiaries
- ---------------------------

     New direct or indirect subsidiaries of EXELON CORPORATION, which may come
into existence after the effective date of this Service Agreement, may become
additional client companies of Service Company and subject to this General
Services Agreement with Service Company.  The parties hereto shall make such
changes in the scope and character of the services to be provided and the method
of assigning, distributing or allocating costs of such services as may become
necessary to achieve a fair and equitable assignment, distribution, or
allocation of Service Company costs among associate companies including the new
subsidiaries.

Section 4. Compensation of Service Company
- ------------------------------------------

     As compensation for the services to be rendered hereunder, Client Companies
listed in Attachment A hereto, as amended from time to time, shall pay to
Service Company all costs which reasonably can be identified and related to
particular services provided by Service Company for or on Client Company's
behalf (except as may otherwise be permitted by the SEC).  Client Companies
listed in Attachment B hereto, as amended from time to time, shall pay to
Service Company charges for services that are to be no less than cost (except as
may otherwise be permitted by the SEC), insofar as costs can reasonably be
identified and related by Service Company to its performance of particular
services for or on behalf of Client Company.

     The factors for assigning or allocating Service Company costs to Client
Company, as well as to other associate companies, are set forth in Schedules 1
and 2 attached hereto.  Attachments A and B and Schedules 1 and 2 are each
expressly incorporated herein and made a part hereof.
<PAGE>

Section 5. Securities and Exchange Commission Rules
- ---------------------------------------------------

     It is the intent of the Parties that the determination of the costs as used
in this Agreement shall be consistent with, and in compliance with, the rules
and regulations of the SEC, as they now read or hereafter may be modified by the
Commission.

Section 6. Service Requests
- ---------------------------

     The services described herein or contemplated to be provided hereunder
shall be directly assigned, distributed or allocated by activity, project,
program, work order or other appropriate basis.

Section 7. Payment
- ------------------

     Payment shall be by making remittance of the amount billed or by making
appropriate accounting entries on the books of the companies involved.  Invoices
shall be prepared on a monthly basis for services provided hereunder.

Section 8. EXELON CORPORATION
- -----------------------------

     Except as authorized by rule, regulation, or order of the SEC, nothing in
this Agreement shall be read to permit EXELON CORPORATION, or any person
employed by or acting for EXELON CORPORATION, to provide services for other
Parties, or any companies associated with said Parties.
<PAGE>

Section 9. Effective Date and Termination
- -----------------------------------------

     This Agreement is executed subject to the consent and approval of all
applicable regulatory agencies, and if so approved in its entirety, shall become
effective as of the date the merger between PECO ENERGY COMPANY and UNICOM
CORPORATION is consummated, and shall remain in effect from said date unless
terminated by mutual agreement or by any Party giving at least 60 days' written
notice to the other Parties prior to the beginning of any calendar year, each
Party fully reserving the right to so terminate this Agreement.

     This Agreement may also be terminated or modified to the extent that
performance may conflict with any rule, regulation or order of the SEC adopted
before or after the making of this Agreement.

Section 10. Access to Records
- -----------------------------

     For the seven years following a transaction under this Agreement, the
Client Company may request access to and inspect the accounts and records of the
Service Company, provided that the scope of access and inspection is limited to
accounts and records that are related to such transaction.

Section 11. Assignment
- ----------------------

     This Agreement and the rights hereunder may not be assigned without the
mutual written consent of all Parties hereto.
<PAGE>

IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be executed
and attested by their authorized officers as of the day and year first above
written.

          ______________ SERVICES COMPANY

               By ______________________________

               Title ___________________________

ATTEST:

By ______________________

Title ___________________


                   EXELON CORPORATION

               By ______________________________

               Title ___________________________

ATTEST:

By ______________________

Title ___________________

     [INSERT NAMES OF AND SIGNATURE BLOCKS FOR COMMONWEALTH EDISON COMPANY AND
     ITS SUBSIDIARIES, UNICOM ENTERPRISES AND ITS SUBSIDIARIES, UNICOM RESOURCES
     AND ITS SUBSIDIARIES, PECO ENERGY COMPANY AND ITS SUBSIDIARIES, AND A
     GENERATION COMPANY TO BE NAMED AT A LATER DATE]

<PAGE>

                          Service Agreement Schedule 1

Allocation Ratios:
- ------------------

General:

     Direct charges shall be made so far as costs can be identified and related
     to the particular transactions involved without excessive effort or
     expense.  Other elements of cost, including taxes, interest, other
     overhead, and compensation for the use of capital procured by the issuance
     of capital stock, shall be fairly and equitably allocated using the ratios
     set forth below.

Revenue Related Ratios:
     Revenues
     Sales - Units sold and/or transported
     Number of Customers

Expenditure Related Ratios:
     Total Expenditures
     Operations and Maintenance Expenditures
     Construction Expenditures

Labor/Payroll Related Ratios:
     Labor/Payroll
     Number of Employees

Units Related Ratios:
     Usage       (for example: CPU's, square feet, number of vendor invoice
                 payments)
     Consumption (for example: tons of coal, gallons of oil, MMBTU's)
     Capacity    (for example: nameplate generating capacity, peak load, gas
                 throughput)
     Other units related

Assets Related Ratios:
     Total Assets
     Current Assets
     Gross Plant

Composite Ratios:
     Total Average Assets and 12 months ended Gross Payroll
     Other composite ratios


<PAGE>

                          Service Agreement Schedule 2


Services Including But Not Limited To:
- --------------------------------------

General:
     Direct charges shall be made so far as costs can be identified and related
     to the particular transactions involved without excessive effort or
     expense.  Other elements of cost, including taxes, interest, other
     overhead, and compensation for the use of capital procured by the issuance
     of capital stock, shall be fairly and equitably allocated using the ratios
     set forth in Schedule 1.


Administrative & management services including but not limited to:
     accounting
          bookkeeping
          billing
          accounts receivable
          accounts payable
          financial reporting
     audit
     executive
     finance
     insurance
     information systems services
     investment advisory services
     legal
     library
     record keeping
     secretarial & other general office support
     real estate management
     security holder services
     tax
     treasury
     other administration & management services

Expected allocation ratios:   Revenue Related, Expenditure Related,
                              Labor/Payroll Related, Units Related, Assets
                              Related, Composite

Personnel services including but not limited to:
     recruiting
     training & evaluation services
     payroll processing
     employee benefits administration & processing
     labor negotiations & management
     other personnel services

Expected allocation ratios:   Labor/Payroll Related, Units Related, Composite
<PAGE>

Machinery management services including but not limited to:
     equipment
     tools
     parts & supplies

Expected allocation ratios:   Expenditure Related, Labor/Payroll Related, Units
                              Related, Composite

Vehicle management services including but not limited to:
     automobiles
     trucks
     vans
     trailers
     railcars
     marine vessels
     aircraft
     transport equipment
     material handling equipment
     construction equipment

Expected allocation ratios:   Expenditure Related, Labor/Payroll Related, Units
                              Related, Composite

Operational services including but not limited to:
     drafting & technical specification, development & evaluation
     consulting
     engineering
     environmental
     nuclear
     construction
     design
     resource planning
     economic & strategic analysis
     research
     testing
     training
     customer solicitation
     support & other marketing related services
     public & governmental relations
     other operational services

Expected allocation ratios:   Revenue Related, Expenditure Related,
                              Labor/Payroll Related, Units Related, Assets
                              Related, Composite
<PAGE>

Purchasing services including but not limited to:
     preparation & analysis of product specifications
     requests for proposals & similar solicitations
     vendor & vendor-product evaluations
     purchase order processing
     receipt, handling, warehousing and disbursement of purchased items
     contract negotiation & administration
     inventory management & disbursement
     other purchasing services

Expected allocation ratios:  Expenditure Related, Labor/Payroll Related, Units
                             Related, Assets Related, Composite

Facilities management services including but not limited to:
     office space
     warehouse & storage space
     transportation facilities (including dock & port, rail sidings and truck
     facilities)
     repair facilities
     manufacturing & production facilities
     fixtures, office furniture & equipment

Expected allocation ratios:  Expenditure Related, Labor/Payroll Related, Units
                             Related, Composite

Computer services including but not limited to:
     computer equipment & networks
     peripheral devices
     storage media
     software

Expected allocation ratios:  Expenditure Related, Labor/Payroll Related, Units
                             Related, Assets Related, Composite

Communications services including but not limited to:
     communications equipment
     audio & video equipment
     radio equipment
     telecommunications equipment & networks
     transmission & switching capability

Expected allocation ratios:  Expenditure Related, Labor/Payroll Related, Units
                             Related, Assets Related, Composite

<PAGE>

                                                                EXHIBIT 99-D-1.1

                           UNITED STATES OF AMERICA
                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION

Commonwealth Edison Company,       )
 on behalf of itself and its       )
 public utility affiliates         )
                                   )
and                                )         Docket No. EC00- -000
                                   )
PECO Energy Company,               )
 on behalf of itself and its       )
 public utility affiliates         )

                             JOINT APPLICATION OF
                          COMMONWEALTH EDISON COMPANY
           ON BEHALF OF ITSELF AND ITS PUBLIC UTILITY AFFILIATES AND
                              PECO ENERGY COMPANY
             ON BEHALF OF ITSELF AND ITS PUBLIC UTILITY AFFILIATES
                            FOR APPROVAL OF MERGER
<PAGE>

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                                                                       Page
                                                                                                       ----
<S>                                                                                                    <C>
I.    REQUEST FOR EXPEDITED CONSIDERATION AND NO HEARING............................................      1

II.   OVERVIEW, TESTIMONY, AND MITIGATION COMMITMENTS...............................................      2

      A.   Overview.................................................................................      2

      B.   Testimony................................................................................      5

      C.   Mitigation And Commitments...............................................................      6

III.  THE APPLICANTS................................................................................      9

      A.   ComEd....................................................................................      9

      B.   ComEd's ITC Plan.........................................................................     11

      C.   PECO And AmerGen.........................................................................     12

IV.   THE MERGER, INTERCONNECTION, AND OPEN-ACCESS..................................................     14

      A.   The Merger...............................................................................     14

      B.   The Interconnection......................................................................     15

      C.   Open-Access Transmission.................................................................     16

V.    APPLICANTS' RESTRUCTURING PLANS...............................................................     16

VI.   MERGER ANALYSIS...............................................................................     18

      A.   Standard Of Review.......................................................................     18

      B.   Effect On Competition....................................................................     19

      C.   Effect On Rates..........................................................................     23

      D.   Effect On Regulation.....................................................................     23

VII.  AFFILIATED SALES..............................................................................     24

VIII. ACCOUNTING....................................................................................     24

IX.   ATTACHMENTS, OTHER FERC FILINGS, AND CONFIDENTIAL TREATMENT...................................     25
</TABLE>

                                       i
<PAGE>

<TABLE>
<CAPTION>
                                                                                                       Page
                                                                                                       ----
<S>                                                                                                    <C>
      A.   Application..............................................................................     25

      B.   Other FERC Filings.......................................................................     26

      C.   Confidential Treatment Of Information....................................................     26

X.    INFORMATION REQUIRED BY SECTION 33.2 OF THE COMMISSION'S REGULATIONS..........................     28

      A.   Names and Addresses of Principal Business Offices........................................     28

      B.   Names And Addresses Of Persons Authorized To Receive Notices And.........................     29
           Communications With Respect To The Application

      C.   Designation of Territories Served, by Counties And States................................     29

      D.   Description Of Facilities Owned Or Operated For Transmission Of
           Electric Energy Or The Sale of Electric Energy At Wholesale in Interstate Commerce.......     30

      E.   Description Of Transaction And Statement As To Consideration.............................     30

      F.   Description Of Facilities Involved In The Transaction....................................     30

      G.   Statement Of The Cost Of The Facilities Involved In The Transaction......................     31

      H.   Statement As To The Effect Of The Transaction Upon Any Contract For The Purchase, Sale,
           Or Disposition, Or Interchange Of Electric Energy........................................     31

     I.    Statement As To Other Required Regulatory Approvals......................................     31

     J.    Facts Showing That The Merger Is Consistent With The Public Interest.....................     31

     K.    Brief Statement Of Franchises Held.......................................................     33

     L.    Form Of Notice...........................................................................     34

XI.   CONCLUSION....................................................................................     35
</TABLE>

                                      ii
<PAGE>

                            UNITED STATES OF AMERICA
                                   BEFORE THE
                      FEDERAL ENERGY REGULATORY COMMISSION

Commonwealth Edison Company,        )
 on behalf of itself and its        )
 public utility affiliates          )
                                    )
and                                 )          Docket No. EC00-    -000
                                    )
PECO Energy Company,                )
 on behalf of itself and its        )
 public utility affiliates          )


                             JOINT APPLICATION OF
                          COMMONWEALTH EDISON COMPANY
           ON BEHALF OF ITSELF AND ITS PUBLIC UTILITY AFFILIATES AND
                              PECO ENERGY COMPANY
             ON BEHALF OF ITSELF AND ITS PUBLIC UTILITY AFFILIATES
                            FOR APPROVAL OF MERGER

     Pursuant to Section 203 of the Federal Power Act ("Act"), 16 U.S.C. (S)
824b (1994), and Part 33 of the Federal Energy Regulatory Commission's
("Commission") regulations, 18 C.F.R. Part 33 (1999), Commonwealth Edison
Company ("ComEd") and PECO Energy Company ("PECO"), on behalf of themselves and
their public utility affiliates/1/ (collectively referred to herein as
"Applicants"), request the Commission to authorize the Applicants to undertake a
merger as described herein (the "Merger").

I.   REQUEST FOR EXPEDITED CONSIDERATION AND NO HEARING

     The Applicants request that the Commission issue a final order approving
this Application, without an evidentiary hearing, as expeditiously as feasible.
The Applicants plan to close on the proposed Merger by September 2000.  In
Applicants' view, the Application contains

___________________

/1/  ComEd's public utility affiliates are Commonwealth Edison Company of
     Indiana, Inc. and Unicom Power Marketing, Inc. ("UPM"). PECO's public
     utility affiliates are (1) AmerGen Energy Company, L.L.C. ("AmerGen"), (2)
     Horizon Energy, d/b/a Exelon Energy, (3) PECO Energy Power Company, (4)
     Susquehanna Electric Company, and (5) Susquehanna Power Company.
<PAGE>

more than sufficient information to allow the Commission to find that the Merger
will have no adverse impact on competition, ratepayers, or regulation. In
addition, the Application contains information on a number of restructuring
initiatives the Applicants have recently completed, have underway, or will soon
initiate, plus a proposed sequence of filings related to these initiatives.
Based on this information, the Applicants believe the Commission will be able to
visualize the post-merger configuration that the Applicants plan to implement.
In the event, however, that the Commission requires additional information, the
Applicants will comply with the Commission's requests on a highly expedited
basis.

     Further, if the Commission cannot approve the Merger as proposed, the
Applicants request the Commission to identify specifically any measures or
conditions that, if taken or agreed to by the Applicants, would render an
evidentiary hearing unnecessary.  This procedure was employed in Ohio Edison
Co., Pennsylvania Power Co., Cleveland Elec. Illuminating Co. and Toledo Edison
Co., 80 FERC (P) 61,039 at 61,107-08 (1997).  See also Allegheny Energy, Inc.,
and DQE, Inc., 84 FERC (P) 61,223 at 62,073 (1998)./2/

II.  OVERVIEW, TESTIMONY, AND MITIGATION COMMITMENTS

     A.   Overview

     The proposed Merger is one step in a comprehensive pro-competitive
restructuring and realignment of generation and transmission resources by the
Applicants, who are leaders in restructuring wholesale and retail electric
markets.  The Merger should be promptly approved to recognize the pro-
competitive nature of this restructuring and realignment and to encourage
similar actions by other public utilities that are behind the Applicants.  The
Merger easily

_____________________

/2/  If the Commission convenes an evidentiary hearing, the Applicants request
     the Commission to establish expedited hearing procedures, including the
     setting of a due date for an Initial Decision, to ensure that the hearing
     will not unreasonably delay the consummation of the proposed Merger.

                                       2
<PAGE>

satisfies the Commission's Merger Policy Statement./3/ The Merger will not harm
competition or enhance market power; it will not hurt ratepayers; and it will
not impair the Commission's or the states' ability to regulate the Applicants.

     With respect to competition, the Application includes a conservative
Appendix A-type screen analysis. The proposed Merger passes the required
economic capacity screen analysis except for a relatively minor failure in one
destination market in certain time periods. While Applicants request that no
mitigation be required to offset this screen failure, they propose a mitigation
measure that eliminates the source of the screen failure, which they will
implement if the Commission deems mitigation necessary. Seen in a very
conservative light, the proposed Merger, without mitigation, does not result in
analytical screen failures "across a range of relevant markets, load/price
levels and capacity measures," as have proposed mergers the Commission set for
evidentiary hearing./4/

     Looking beyond the numerical content of the screen analysis and other
quantitative analyses, a broader, qualitative review of the proposed Merger and
the other restructuring efforts by Applicants supports their conviction that the
Merger should be approved with little or no mitigation. The restructuring
initiatives of ComEd and PECO already are dramatically and significantly
improving the electric marketplace, both horizontally and vertically.
Horizontally, ComEd is giving up ownership of nearly half of its generation in
northern Illinois, which addresses ComEd's position in its own highly
concentrated market. As a result, although PECO owns substantial generation in
its own right, after the Merger is closed the newly merged system

_____________________

/3/  Inquiry Concerning the Commission's Merger Policy Under the Federal Power
     Act: Policy Statement, Order No. 592 III FERC Stats. & Regs. (P) 31,044
     (1996) (codified at 18 C.F.R. (S) 2.26) (hereinafter, the "Merger Policy
     Statement").

/4/  Western Resources, Inc. and Kansas City Power & Light Co., 86 FERC (P)
     61,312 at 62,119 (1999).

                                       3
<PAGE>

will own a portfolio of generation of approximately the same size but dispersed
over a much larger region. In the competitive generation market in which they
operate, the Applicants will have little ability or incentive to raise market
prices through this ownership of this dispersed generation, which will be
primarily low-cost baseload plants. Even now, ComEd brings to the proposed
Merger little capacity that can be withdrawn from the market. Indeed, at the
very high load times when prices and profit margins are naturally at their
highest, ComEd is short of capacity; and at all other times, ComEd controls
little capacity that can be withheld.

     Further, within a relatively short time-frame, both of the Applicants'
transmission operation and control area functions will be turned over to
independent regional organizations that meet the Commission's standards (PECO's
- -----------
already have been).  Thus, vertically, neither of the Applicants, nor their
affiliates, will operate a control area (see ComEd's ITC proposal) or have the
ability to manipulate the transmission grid.  In the short run, moreover, the
existing configuration of transmission systems and generation resources
controlled by the Applicants prevents them from using their ownership of
generation to preferentially manage the availability of transmission.

     Last but not least, at the retail level, both the Applicants operate in
states that have already initiated phased-in retail access programs enabling
retail customers to choose their own power suppliers.  Under these programs, all
of Applicants' existing customers will have such right in 2002.  Finally, the
new system will be the premier operator of nuclear generation in the country,
and ratepayers throughout the eastern half of the United States will thereby
benefit from the safe, reliable, and low-cost power provided by it.

     B.   Testimony

     An overview of the Applicants, their wholesale and retail restructuring
efforts, and their reasons for merging is provided by Kenneth G. Lawrence,
President of PECO Energy

                                       4
<PAGE>

Distribution (Exhibit No. APP-100), and Robert K. McDonald, Strategic Planning
Vice President of ComEd (Exhibit No. APP-200). Further description of ComEd's
transmission system, and of its inability to manipulate the transmission system,
is provided by Steven T. Naumann, Transmission Services Vice President of ComEd
(Exhibit No. APP-400). A description of the Applicants' wholesale customers, and
the Applicants' proposed ratepayer protection mechanisms, is provided by Robert
N. Spencer of PECO (Exhibit No. APP-500) and Arlene Juracek of ComEd (Exhibit
No. APP-600). William H. Hieronymus, Senior Vice President of PHB Hagler Bailly,
Inc. provides testimony on the competitive effects of the proposed Merger
(Exhibit No. APP-300).

     On the generation side, the witnesses describe a pro-competitive
divestiture undertaken by ComEd, in which more than 9,000 MW of generation is
being sold to Edison Mission Energy, Inc. ("Mission"). While ComEd will
contractually retain for a limited period specified recall rights to the output
of these generating facilities so that it can meet its public utility
obligations, the Mission divestiture will relatively soon dramatically reduce
ComEd's concentration of generation ownership in northern Illinois, and in the
Midwest generally. The merged system, accordingly, will own generation roughly
equal in capacity to the generation formerly owned just by ComEd, but the
generation will be spread over dispersed areas, centered on Chicago and
Philadelphia, which are 700 miles apart. The existence of numerous utility
systems between the ComEd and PECO systems will prevent the merged system from
dominating any one region.

     On the transmission side, the witnesses describe (a) PECO's membership in
the ISO operated by PJM Interconnection, LLC ("PJM"), the nation's most advanced
regional, independent transmission operation system, and (b) ComEd's commitment
to transfer its transmission facilities to the Midwest Independent Transmission
System Operator, Inc. ("MISO"), which is expected to begin operation in mid-
2001.  ComEd is known for its

                                       5
<PAGE>

commitment to the success of the MISO and for endeavoring to improve the MISO so
that the Commission has no reservations concerning its effectiveness. ComEd has
contributed personnel to the MISO, and ComEd's parent company, Unicom, has
guaranteed $50 million in loans on behalf of the MISO. The witnesses also
discuss ComEd's pro-competitive commitment to file, perhaps as soon as December
10, 1999, a proposal to turn over its transmission system and control area
operations to an Independent Transmission Company ("ITC") that will be a member
of and subject to the oversight of MISO. As the witnesses make clear, the
Applicants are committed to a restructured configuration in which neither ComEd
nor PECO will be able to exercise any control over the transmission grid in the
eastern half of the United States or over control area functions. Moreover, Mr.
Naumann demonstrates that the merged system will not be in a position to
dispatch generation in a way that would indirectly influence transmission
availability so as to favor its generation or enable it to raise market prices.
Exhibit No. APP-400 at 38-41.

     C.   Mitigation And Commitments

     Mr. Naumann describes three significant commitments, set forth in
paragraphs (1) through (3) below (one temporarily under confidential seal), that
the Applicants make, conditioned on Merger approval, to ensure that the proposed
Merger will not affect or impede transmission access or enable the Applicants to
use generation control to manipulate transmission.  Additionally, the Applicants
are willing to accept the mitigation set forth in paragraph (4) if necessary to
avoid an evidentiary hearing.  Finally, paragraph (5) includes two other
commitments related to the effect of the proposed Merger on rates and
regulation.

     (1)  ComEd has underway several reinforcement or expansion projects
designed to increase available transmission capacity ("ATC") into Wisconsin
markets.  For example, in March of this year, ComEd began constructing two new
345 kV lines that will significantly

                                       6
<PAGE>

increase ATC into northern Illinois and Wisconsin. ComEd has decided to
accelerate the construction schedule for these lines in an attempt to place the
lines in service by the summer of 2000. Thus, ComEd expects that the lines will
be in operation by or shortly after the consummation of the Merger. If this
                                                                    -------
project is not completed prior to consummation of the Merger, ComEd commits that
- --------------------------------------------------------------------------------
it, and its affiliates, will forgo any new off-system sales that would use ATC
- ------------------------------------------------------------------------------
on that interface, except for emergency sales requested by other utilities,
- ---------------------------------------------------------------------------
until the lines are constructed.  Exhibit No. APP-400 at 25-26.
- --------------------------------

     (2)  Mr. Naumann explains that ComEd has no realistic ability to create
transmission congestion through its control of generation.  In order to
eliminate any doubts on this issue, ComEd proposes a mitigation measure,
temporarily under confidential seal, that will ensure that Applicants will not
be able to limit transmission access through its control over generation.
Exhibit No. APP-411.

     (3)  ComEd will file its ITC proposal by approximately December 10, 1999.
It is ComEd's view that the ITC, with the oversight of the MISO, will meet all
of the minimum requirements that the Commission will establish for a Regional
Transmission Organization ("RTO").  ComEd commits that if the Commission
                                    ------------------------------------
concludes that the ITC/MISO proposal is insufficient to meet the minimum RTO
- ----------------------------------------------------------------------------
requirements, ComEd will endeavor to modify the proposal as necessary in order
- ------------------------------------------------------------------------------
to meet those requirements.  Exhibit No. APP-400 at 19.
- ---------------------------

     (4)  Dr. William Hieronymus conducts a market power study in accordance
with the Commission's Merger Policy Statement.  The study is a conservative and
realistic measurement of the potential market power effects of the Merger.  Dr.
Hieronymus' economic capacity analysis shows that screen failures occur only in
a single market -- the ComEd destination market -- and are traceable to the
conservative treatment of a ten-year 300 MW sales agreement, which began in
1996, between ComEd and PECO.  Exhibit No. APP-408.  Although the sales

                                       7
<PAGE>

agreement provides for the delivery of the power into the American Electric
Power (AEP) or Ameren destination markets, where no screen failures occur or
would occur if this treatment were reversed, Dr. Hieronymus treats the capacity
associated with the agreement as generation added by the Merger to the ComEd
destination market, thus precipitating a screen failure.  Exhibit No. APP-300 at
29, 36.

     Given the absence of any other economic capacity screen violations and the
existence of the Applicants' numerous pro-competitive projects and commitments,
the Applicants believe the Commission should approve the proposed Merger without
requiring the Applicants to divest the ComEd/PECO sales agreement.  However, the
Applicants appreciate that the Commission may be concerned with the Applicants'
near-term market concentration in the ComEd destination market.  (The ComEd/PECO
sales agreement expires in 2005 and ComEd's rights to purchase power from the
generating units  ComEd is selling to Mission terminate in 2004).  Accordingly,
the Applicants hereby state their willingness to sell the ComEd/PECO sales
agreement if the Commission could then approve the Merger without setting market
power issues for hearing. Specifically, if deemed necessary to eliminate the
                          --------------------------------------------------
need for an evidentiary hearing, the Applicants agree that they will divest the
- -------------------------------------------------------------------------------
300 MW sales agreement by selling it to an unaffiliated buyer as promptly as
- ----------------------------------------------------------------------------
possible after the Merger is consummated and that they will take all possible
- -----------------------------------------------------------------------------
steps prior to consummation of the Merger to complete the divestiture before the
- --------------------------------------------------------------------------------
succeeding summer season.  If implemented, this proposal would fully mitigate
- -------------------------
the economic capacity screen failure detected in Dr. Hieronymus' study.  Exhibit
No. APP-300 at 38-40.

     (5)  The Applicants commit that they will hold their requirements and
transmission customers harmless from any Merger-related costs to the extent that
those costs are not offset by Merger-related savings.  Exhibit No. APP-500 at
12-13, 16;  Exhibit No. APP-600 at 6-10.

                                       8
<PAGE>

Finally, the Applicants will waive all "Ohio Power" immunity from Commission
regulation of non-power affiliated rates. Exhibit No. APP-200 at 15.

III. THE APPLICANTS

     A.   ComEd

     ComEd is a corporation organized and existing under the laws of the State
of Illinois, with its principal office in Chicago, Illinois.  ComEd is a
majority-owned subsidiary (greater than 95%) of Unicom Corporation ("Unicom").
ComEd is engaged in generating, transmitting and distributing electric energy to
the public in northern Illinois and is a "public utility" under Section 201 of
the FPA.  ComEd and UPM have the authority to sell power at market-based
rates./5/

          ComEd, after completing two sales of fossil-fueled generation totaling
approximately 1,500 MW, currently retains 19,139 MW of generating capacity, all
of which is located in Illinois./6/  More recently, ComEd has entered into a
major asset sales agreement with Mission, under which ComEd will sell all of its
remaining 9,772 MW of non-nuclear generating facilities. In order to secure
regulatory approval for this plainly pro-competitive sale, ComEd has entered
into a series of power purchase agreements intended to maintain ComEd's ability
to reliably serve its load during the beginning years of Illinois' transition to
full retail access.  These

___________________

/5/  See Commonwealth Edison Co., 82 FERC (P) 61,317 (1998), and Unicom Power
     Marketing, Inc., 81 FERC (P) 61,048 (1997). UPM has not sold power under
     its market-based rate tariff.

/6/  ComEd previously disposed of its 1,108 MW Kincaid coal-fired facilities to
     Kincaid Generation, L.L.C., an indirect subsidiary of Dominion Resources,
     Inc. Kincaid Generation, L.L.C., 78 FERC (P) 62,060 (1997). Commonwealth
     Edison Company of Indiana, Inc. previously sold its 490 MW State Line coal-
     fired generating facilities to State Line Energy, L.L.C., an indirect
     subsidiary of The Southern Company. State Line Energy, L.L.C., 78 FERC (P)
     62,037 (1997). ComEd has rights to capacity and energy from Kincaid and
     State Line pursuant to power purchase agreements that extend through 2013.

                                       9
<PAGE>

agreements provide ComEd with the right to dispatch and receive electric energy
from the generating facilities being sold to Mission through the summer of 2004.
By an order issued on November 8, 1999, the Commission approved ComEd's
disposition of jurisdictional assets associated with the generating units to be
sold to Mission. Commonwealth Edison Co., et al., 89 FERC (P) 62,105 (1999)./7/
ComEd expects to complete the sale of its generating facilities to Mission by
December 31, 1999. Upon consummation of the sale of those facilities to Mission,
ComEd will retain ownership of only 9,214 MW, all nuclear generating capacity.

     ComEd serves approximately 3.4 million retail customers in Illinois. The
Illinois legislature has enacted a retail access program in Illinois. Starting
on October 1, 1999, (a) customers with peak loads of four MW or greater, (b) a
percentage of commercial customers with ten or more locations with peak load of
9.5 MW or greater, and (c) a percentage of other non-residential customers
became eligible for direct access. The balance of ComEd's non-residential
customers will become eligible for direct access by December 31, 2000, and all
of its residential customers by May 1, 2002. ComEd provides unbundled retail
transmission service in Illinois under the rates, terms and conditions of
ComEd's open-access transmission service tariff ("OATT") on file with the
Commission. The Commission has accepted changes to the OATT to implement retail
transmission access. Commonwealth Edison Co., 88 FERC (P) 61,296 (1999). As a
part of the Illinois retail access program, ComEd's retail rates are capped
through 2005.

     B.   COMED'S ITC PLAN

     ComEd has committed to transfer control of its transmission facilities to
the MISO, which is expected to commence operation by June 1, 2001.  In addition,
approximately by

/7/  By order issued on August 3, 1999, the Illinois Commerce Commission found
     that ComEd's sale of its fossil fuel assets to Mission "will not render
     ComEd unable to provide its tariffed services in a safe and reliable
     manner." Commonwealth Edison Co., ICC Docket No. 99-0273 and 99-0282,
     Ordering (P) 5.

                                       10
<PAGE>

December 10, 1999, ComEd and other interested parties will file a request for an
order with the Commission declaring that an ITC, coupled with oversight by the
MISO, will satisfy the minimum characteristics and functions of an RTO as
proposed in the Commission's May 13, 1999, Notice of Proposed Rulemaking
("NOPR") on Regional Transmission Organizations in Docket No. RM99-2-000 (or as
adopted in any final rule issued by the Commission during the pendency of the
declaratory order proceeding). ComEd hopes that the declaratory order request
will induce more transmission owners in the Midwest (a) to voluntarily commit to
the separation of their transmission and generation assets, and (b) to support
efficient operation of the regional grid under MISO oversight.

     The ComEd-designed ITC would mitigate many of the concerns that have been
raised regarding the MISO, including concerns regarding market organization and
congestion management in the Midwest.  The ITC would be independent of any
market participant and would operate under MISO oversight.  Mr. Naumann's
testimony describes the ITC plan in more detail.  Exhibit No. APP-400 at 15-19.
If the Commission concludes that the ITC/MISO combination does not meet its
minimum RTO requirements, ComEd commits as a condition of the Merger that ComEd
will endeavor to modify its proposal in order to meet those requirements.
Exhibit No. APP-400 at 19.

     C.   PECO And Amergen

     PECO is a corporation organized and existing under the laws of the
Commonwealth of Pennsylvania, with its principal office in Philadelphia,
Pennsylvania.  PECO is engaged in generating and distributing electric energy
and natural gas to the public in Pennsylvania.  PECO is a "public utility" under
Section 201 of the FPA and has market-based rate authority./8/

__________________

/8/  Letter Order issued to PECO Energy Company in Docket No. ER95-770-000 on
     May 15, 1995; Letter Order issued to PECO Energy Company in Docket No.
     ER97-316-000 on
                                                                  (continued...)

                                       11
<PAGE>

     PECO currently owns approximately 9,200 MW of generating capacity. PECO
also owns the Muddy Run Pumped Storage Project, and PECO Energy Power Company,
Susquehanna Power Company, and Susquehanna Electric Company, subsidiaries of
PECO, own and operate the Conowingo Hydroelectric Project. All generation owned
by PECO and its affiliates is located in PJM. No other PECO affiliates own
generation assets. PECO also owns transmission facilities that are controlled by
PJM.

     PECO is affiliated with AmerGen, a limited liability company, formed by
PECO and British Energy, Inc. PECO holds a 50 percent interest in AmerGen.
AmerGen was formed to operate nuclear and other generating assets in the United
States/9/ and already has entered into agreements to own and operate several
nuclear generating stations in the United States. With respect to the market
power analysis included in this Application, AmerGen's most important
acquisition agreement is related to the purchase of the 930 MW Clinton nuclear
generating station from Illinois Power Company. Under that agreement, AmerGen
will sell 75 percent of the output of the Clinton station to Illinois Power
through 2004./10/ By order dated November 8, 1999, the Commission granted
Illinois Power's request to transfer jurisdictional assets associated with the
Clinton station to AmerGen. Illinois Power Co., 89 FERC (P) 62,104 (1999).

____________________

/8/   (continued...)
      February 14, 1997; Letter Order issued to PECO Energy Company in Docket
      No. ER97-316-001 on March 18, 1999.

/9/   British Energy, Inc. is a Delaware corporation and a wholly-owned
      subsidiary of British Energy plc. British Energy plc. is headquartered in
      Edinburgh, Scotland, and it owns eight nuclear generating stations in
      Great Britain with a total capacity of 12,000 MW. Other than through its
      joint venture with PECO, British Energy owns no electric generation or
      transmission assets anywhere in the United States.

/10/  AmerGen also has entered into agreements to acquire the following nuclear
      stations: Three Mile Island Unit No. 1; Nine Mile Point Unit Nos. 1 and 2;
      Oyster Creek; and Vermont Yankee. PECO itself is purchasing an additional
      interest in the Peach Bottom nuclear station to augment its existing
      interest.

                                       12
<PAGE>

     PECO serves approximately 1.5 million electricity customers and provides
natural gas service to more than 400,000 customers in Pennsylvania. Pursuant to
the Electricity Generation Customer Choice and Competition Act and as a part of
a Pennsylvania Public Utilities Commission ("PaPUC") approved settlement, PECO
has implemented a retail access program. Under the program, PECO is phasing-in
full retail access over two years. As of the date of this Application, two-
thirds of the retail loads in PECO's service territory are free to choose their
electric service provider. By January 1, 2000, all retail customers in PECO's
territory will have that freedom. PECO remains the provider of electric
distribution services in its service territory. As part of the restructuring of
the Pennsylvania utility market, retail ratepayers received a rate decrease in
1999 and 2000, PECO's distribution charges are capped through June 30, 2005 and
total charges to customers generally cannot exceed PECO's rates that were on
file as of December 31, 1996.

     The Commonwealth of Pennsylvania recently enacted legislation under which
retail gas customers will also be entitled to purchase their gas supply
requirements from alternative suppliers.  Upon the implementation of the
legislation, PECO will not hold any exclusive franchises to sell gas to retail
customers, although it expects it will serve as provider of last resort to its
existing retail gas customers and continue to provide distribution services to
those "provider of last resort" customers.

IV.  THE MERGER, INTERCONNECTION, AND OPEN-ACCESS

     A.   The Merger

     The Merger will occur in accordance with the Agreement and Plan of Exchange
and Merger, dated September 22, 1999 ("Merger Plan") (Exhibit H).  Under the
Merger Plan, PECO

                                       13
<PAGE>

will enter into a mandatory share exchange with a newly-established PECO
subsidiary, NewCo./11/ Each outstanding share of PECO common stock will be
exchanged, at the election of the holder, for either one share of NewCo common
stock or $45.00 in cash. Immediately thereafter, Unicom, ComEd's parent, will
merge with and into NewCo. Each outstanding share of Unicom common stock will be
exchanged, at the election of the holder, for either 0.95 shares of NewCo common
stock or $42.75 in cash. The result will make ComEd and the existing utility and
non-utility subsidiaries of Unicom, including UPM, subsidiaries of NewCo./12/
The holders of PECO and Unicom common stock will together own all of the
outstanding shares of NewCo common stock. Each share of each other class of
capital stock of PECO and Unicom shall be unaffected and will remain outstanding

     The Applicants and their associated companies will form a public utility
holding company system subject to regulation and registration under the Public
Utility Holding Company Act of 1935, 15 U.S.C. (S)79a, et seq. ("PUHCA"). To
                                                       -- ---
ensure compliance with the interconnection standards of PUHCA, the Applicants
will inform the Securities and Exchange Commission ("SEC") that they are
prepared, if necessary, to commit to reserve a 100 MW firm point-to-point
transmission path from ComEd to PJM during the first three years following the
Merger's closing. The Applicants' market power analysis reflects this
commitment. Exhibit No. APP-300 at 36-38.

     Corporate offices will be in Chicago, Illinois. However, ComEd and PECO
will continue to operate as separate operating companies and will maintain
offices in Chicago and

___________________

/11/  The name of the surviving public utility holding company, NewCo, has not
      yet been determined.

/12/  The jurisdictional assets of UPM that are covered by this Application and
      are to be transferred to NewCo are its market-based rate tariff (Rate
      Schedule FERC No. 1) and all of its other jurisdictional filings, books
      and records.

                                       14
<PAGE>

Philadelphia, respectively. The restructured generation and wholesale power
marketing businesses will be located in southeastern Pennsylvania. A services
company, through which ComEd and PECO will share certain overhead costs such as
costs for accounting, financial, legal and human resources services, will be
formed.

     B.   The Interconnection

     ComEd and PECO will operate as an interconnected utility system within the
meaning of PUHCA. Although the Applicants' systems are not contiguous, they are
effectively interconnected by means of transmission services taken from
intervening third-party transmission systems. The Applicants expect those
services to be readily available between ComEd and PJM, thus enabling the
Applicants to sell power to each other when it is economical to do so.

     At the time of the filing of this Application, the Applicants do not know
with certainty whether the SEC will find that the Applicants are currently
"interconnected" or "capable of interconnection," as those terms are defined in
PUHCA. Therefore, if necessary to avoid delay in obtaining SEC authorization,
the Applicants will offer to commit to acquire a firm transmission path between
ComEd and PJM for three years following the Merger's effective date. This path
would be capable of delivering 100 megawatts of energy from west to east on a
continuous basis. Accordingly, Dr. Hieronymus' study models two interconnection
scenarios: one assuming that the Applicants are interconnected "as is," and a
second, assuming the establishment of the 100 MW ComEd to PJM transmission path.
Exhibit No. APP-300 at 37-38.

     C.   Open-Access Transmission

     Both ComEd and PECO (indirectly via PJM) now provide open-access
transmission services. Due to the atypical circumstances surrounding this
proposed Merger, however, the Applicants cannot file a combined-system open-
access transmission tariff. PECO already has transferred control of its
transmission system to PJM, and ComEd has committed to transfer

                                       15
<PAGE>

control of its transmission facilities to the MISO. Additionally, ComEd will
endeavor to establish an ITC to which ComEd's transmission facilities would be
transferred. This ITC would remain a member of the MISO and would be under its
overview. Therefore, while it is infeasible for the Applicants to file a single-
system tariff, this infeasibility reflects existing pro-competitive conditions
and does not raise any issues. Exhibit No. APP-400 at 44-45.

V.   APPLICANTS' RESTRUCTURING PLANS

     At or about the time the Merger closes, both of the Applicants will undergo
internal reorganizations. The Applicants briefly describe below how their
restructured companies will operate and be integrated after the Merger is
consummated.

     Currently, PECO has functionally divided its operations within its existing
corporate structure into three parts: (a) the regulated transmission and
distribution function, (b) the generation function, and (c) unregulated
ventures.  PECO's restructuring plan will formalize this functional separation
into separate corporate entities within a holding company structure.  After
restructuring, the existing PECO Energy Company, which will continue in
existence as a subsidiary of the holding company, will continue to own and
operate all distribution assets.  It also will own PECO's transmission
facilities, but PJM will continue to operate such facilities.  PECO Energy
Company will fulfill the "provider of last resort" functions mandated by
Pennsylvania law and will remain regulated by the PaPUC.

     PECO's generation assets and operations will be transferred to a new
subsidiary, referred to herein as GenCo.  GenCo will own PECO's existing fossil
and nuclear generating plants.  A nuclear service company will hold the NRC
license to operate those plants.  Also, PECO's power marketing functions,
currently pursued through a division of PECO known as the Power Team, will
become a part of the GenCo. To the extent necessary, PECO Energy Company will
enter

                                       16
<PAGE>

into power purchase agreements with GenCo, as well as other generators, to
obtain power supplies.

     PECO's unregulated ventures, including PECO's unregulated retail electric
and gas marketing operations, which currently operate through Horizon Energy,
d/b/a/ Exelon Energy, will report to the unregulated enterprises portion of the
combined system, Unicom Enterprises. Exelon Energy may legally reside as a
subsidiary of Unicom Enterprises, or it may be a part of GenCo, even though
reporting to Unicom Enterprises.  In the event that Exelon becomes a part of
GenCo for corporate organizational purposes, its operations as an Electric
Generation Supplier in PECO's service territory in Southeast Pennsylvania will
continue to be operated through a separate corporation, as required by PECO's
settlement of its retail restructuring case before the PaPUC.   Finally, PECO
and Unicom will establish a separate service company subsidiary that will
perform certain administrative and support functions.

     In addition to its ITC initiative, ComEd also plans to restructure its
operations.  ComEd will transfer control of the output of its generation
facilities to the same GenCo that PECO will create.  The means of this transfer
of control has not yet been determined.  It could take the form of an asset
transfer, a lease, or a sale of all output to GenCo.  Regardless, after
restructuring, the existing ComEd will be a distribution company.  ComEd will
then obtain generation supplies necessary to serve its customers in accordance
with power purchase agreements with the GenCo, through at least 2004.  ComEd
will also assign its rights under various power purchase agreements, including
those with Mission, to GenCo.

     Both ComEd and PECO anticipate filing their applications with the
Commission for authorization to accomplish these restructuring objectives by
approximately December 15, 1999. Since these plans are internal reorganizations
and do not present the kinds of considerations that

                                       17
<PAGE>

this Application does, the Applicants expect Commission authorization to be
obtained for them before the Commission has time to approve this Application.

VI.  MERGER ANALYSIS

     A.   Standard Of Review

     The Merger is subject to approval under Section 203 of the FPA, which
provides:

          No public utility shall sell, lease, or otherwise dispose
          of the whole of its facilities subject to the jurisdiction
          of the Commission, or any part thereof of a value in
          excess of $50,000, or by any means whatsoever, directly or
          indirectly, merge or consolidate such facilities or any
          part thereof with those of any other person, or purchase,
          acquire, or take any security of any other public utility,
          without first having secured an order of the Commission
          authorizing it to do so.

16 U.S.C. (S) 824b(a) (1994).

     The Commission's approval of a merger under Section 203 requires a finding
that the proposed merger will be "consistent with the public interest." See,
e.g., Duke Power Co., 79 FERC (P) 61,236 (1997).

     The Commission considers three factors in determining whether a proposed
merger is consistent with the public interest: its effect on (1) competition,
(2) rates, and (3) regulation. The Applicants' believe the proposed Merger
should be approved after a careful review of these factors.

     B.   Effect On Competition

     In the Merger Policy Statement, the Commission requires applicants to
perform quantitative studies of market concentration changes resulting from the
proposed merger, employing the delivered price screen analysis described in
Appendix A to the Merger Policy Statement.  If the screen analysis is passed, or
if any failures are adequately mitigated, there is generally no need for further
analysis.  Merger Policy Statement at 30,119-120.  Consistent with

                                       18
<PAGE>

the Merger Policy Statement, Dr. Hieronymus performs such a quantitative
analysis. He concludes that the proposed Merger, when combined with the sale to
an unaffiliated purchaser of the 300 MW ComEd/PECO sales agreement (Exhibit No.
APP-408), which the Applicants are willing to do in order to alleviate any
concern the Commission may have, will not adversely affect competition in any
relevant market or enable the Applicants to raise prices above the levels they
would be able to charge if they do not merge. Exhibit No. APP-300 at 38-40.

     Further, it is important to understand that an Appendix A-type screen
analysis will not capture the pro-competitive effects of the Applicants'
initiatives. For instance, the Applicants will soon complete the sale of over
9,000 MW of generating capacity to Mission. This sale will dramatically reduce
the concentration of generation ownership in the Midwest. While ComEd's
remaining generation will be consolidated with PECO's, this generation (with the
exception of AmerGen's Clinton unit) is located seven hundred miles and two
reliability councils away from each other. Therefore, the Merger will not
restore ComEd's pre-divestiture market concentrations in northern Illinois.

     In the screen analysis, however, the Applicants receive no credit for
ComEd's pro-competitive divestiture. The divested generation, instead, is deemed
to be still owned by ComEd because ComEd will retain, for a relatively short
period of time, certain rights to the output of the units in order to meet its
native load obligations. Nor do the market concentration quantifications
included in the screen analysis, considered in isolation, recognize that the
Applicants are unable to exercise market power through price increases; that
during the periods of time when demands for power are highest, ComEd is
currently short of capacity, or that during all other periods of time, it has
little ability to attempt to artificially inflate prices by withholding
capacity.

                                       19
<PAGE>

     Properly conducted as is Dr. Hieronymus' analysis, an Appendix A-type
analysis, moreover, does not give ComEd and PECO credit for their service areas
already being open to retail access. Nor are they given credit for PECO
membership in a fully functional PJM ISO, which prevents PECO from exercising
market power. (The ISO restricts PECO's access to the transmission facilities
PECO owns and also conducts control area operation). Likewise, a horizontal
analysis gives no credit for ComEd's membership in MISO, or for ComEd's
leadership in promoting the separation of generating and transmission assets,
including the transfer of ownership of transmission and control area functions
to an ITC under the overview of the MISO. The Commission, the Applicants
respectfully submit, should not rely entirely on a screen analysis,
conservatively applied, which cannot capture the ongoing transformation of the
Applicants into full-fledged competitors in rapidly opening markets.

     In other words, since the ultimate purpose of the Commission's Merger
Policy Statement is to test whether the Applicants will be able to raise market
prices to a level higher than they would have been absent the proposed Merger,
other important factors, qualitative though they may be, should be given great
weight. In part, because of these factors, this Merger will not give the
Applicants the ability to increase market prices. Further, the profit-maximizing
incentives for the Applicants post-merger is the strategy that is also best for
ratepayers. The merged system will seek to maximize the efficiency of their
units, consistent with safety and reliability, so that they can produce and sell
electricity at the lowest possible prices. Meanwhile, the Applicants will not
have the ability to control transmission in order to favor their own sales over
that of their competitors.

     Because the Merger will not give the Applicants the ability to raise market
prices, the Commission should approve the Merger promptly and should not require
the Applicants to sell the 300 MW ComEd/PECO sales agreement (Exhibit No. APP-
408). That being said, Dr.

                                       20
<PAGE>

Hieronymus performs a comprehensive study, including quantitative analyses, of
the competitive effects of the Merger, including a forward-looking analysis
using transmission flow data and considering a variety of possible scenarios as
required by the Merger Policy Statement. He concludes that the proposed Merger
will not adversely affect competition.

     Dr. Hieronymus' analysis focuses on the market for electric energy,
specifically non-firm energy, measured as Economic Capacity in the Appendix A
analysis./13/  Dr. Hieronymus analyzes the relevant product markets in eleven
time periods in 42 destination markets.  Exhibit No. APP-300 at 22-24.  Since
the Applicants may be required by the SEC to reserve a 100 MW firm path west to
east for three years,  Dr. Hieronymus analyzes the effects of this commitment on
his analysis and adjusts available transmission capacity to take it into
account, based on the load flow effects of the resultant changes in dispatch.
When he does so, the results do not change materially.  Exhibit No. APP-300 at
37-38.  Finally, Dr. Hieronymus conducts several sensitivity studies to test his
conclusions.  For example, he assumes zero transmission rates as a limiting case
showing the effects of market enlargement on the competitive effects of the
Merger.  These sensitivity studies support his conclusions.  Exhibit No. APP-300
at 40.

     Dr. Hieronymus' analyses confirm that, although the Applicants both
participate in the destination markets located between them, the overlap in
their shares of such markets is so small that the screen is readily passed
except in the ComEd market. Exhibit No. APP-300 at 33-35. In the ComEd market,
the economic capacity screen is failed due to the treatment accorded to the
ComEd/PECO sales agreement. The point of delivery of this power is in the AEP
and/or Ameren control areas. For purposes of his analysis, however, Dr.
Hieronymus conservatively

____________________

/13/  Dr. Hieronymus determines that no barriers exist to entry for long-term
      firm capacity and, therefore, did not consider that product as a relevant
      product market in his analysis. See Atlantic City Electric Co. and
      Delmarva Power & Light Co., 80 FERC (P) 61,126 at 61,405 (1997).

                                       21
<PAGE>

assumes that PECO controls the 300 MW in ComEd's control area, rather than
counting the 300 MW in the AEP or the Ameren control areas. Had Dr. Hieronymus
counted the power in AEP's or Ameren's control area, no screen failure would
have occurred. Exhibit No. APP-300 at 36. (There are failures in the available
economic capacity screen. However the Applicants, for the reasons explained in
Dr. Hieronymus' testimony, do not believe that the available economic capacity
screen, although required by the Merger Policy Statement, should be given weight
in the Commission's consideration of the proposed Merger. Exhibit No. APP-300 at
41-44.)

     C.   Effect On Rates

     Under the Merger Policy Statement, the Commission evaluates whether a
proposed merger results in an increase in the merging utilities' cost-based
power or transmission rates./14/ Merger Policy Statement at 30,123-124.  The
proposed Merger will not harm any ratepayers.

     PECO's only cost-based rates are for transmission services./15/ ComEd
provides services under cost-based transmission and power sales rates. The terms
of the Applicants' existing agreements ensure that requirement sales and
transmission ratepayers will not be adversely affected by the Merger. However,
to ensure this result, the Applicants hereby commit that they will hold their
                       ------------------------------------------------------
requirements and transmission customers harmless from any Merger-related costs
- ------------------------------------------------------------------------------
to the extent that those costs are not offset by Merger-related savings.  Ms.
- -----------------------------------------------------------------------
Juracek's testimony (Exhibit No. APP-600 at 6-10) and Mr. Spencer's testimony
(Exhibit No. APP-500 at 12-13, 16) describe the Applicants' ratepayer protection
proposal in more detail.  The Applicants have met with their affected wholesale
customers and discussed this commitment.

____________________

/14/  Although Applicants and their affiliates have market-based rate authority,
      the Commission has made clear that its ratepayer protection concerns do
      not apply to customers paying market-based rates. Enron Corp., et al., 78
      FERC (P) 61,179 (1997).

/15/  PECO's last remaining cost-based power sales agreement has been
      terminated. The notice of termination will be tendered for filing with the
      Commission.

                                       22
<PAGE>

     D.   Effect On Regulation

     In order to avoid a hearing on the effects of a merger on regulation, the
Applicants must demonstrate that the proposed Merger will not affect regulation
of the Applicants.  Merger Policy Statement at 30,125.  The Applicants,
accordingly, will waive Ohio Power immunity from Commission regulation of non-
power affiliate sales./16/  Exhibit No. APP-200 at 15.  In addition, the
Applicants agree for ratemaking purposes to follow the Commission's policy
regarding the treatment of costs and revenues of affiliate non-power
transactions.  Further, neither the Merger, nor implementation of the
Applicants' restructuring plans, will adversely affect state regulation. ComEd
and PECO will remain subject to state regulation following completion of the
Merger.

VII. AFFILIATED SALES

     Consistent with Commission policy, ComEd and PECO have committed not to
sell power to each other, unless the Commission authorizes such sales.  Further,
ComEd and PECO have agreed that they will not sell non-power goods and services
to each other except under conditions the Commission has regularly imposed on
such transactions between utilities and their affiliated power marketers.  Those
additional commitments are pending Commission review in Docket Nos. ER99-1872-
001 (PECO) and ER98-1734-001 and ER97-3954-010 (ComEd).

     The Applicants historically have sold power to each other under their
respective market-based rate tariffs.  ComEd and PECO have filed amended service
agreements under which ComEd and PECO will continue to sell power to each other
at market-based rates, but subject to an independent, verifiable rate cap.
ComEd filed its amended service agreement in Docket No. ER00-182-000, and PECO
filed its amended agreement in Docket No. ER00-194-000.  Those filings are
pending before the Commission.  The Applicants believe that the independent rate
cap

____________________

/16/  Merger Policy Statement at 30,124-125; Ohio Power Co. v. FERC, 954 F.2d
      779, 782-86 (D.C. Cir.), cert. denied, 498 U.S. 73 (1992).

                                       23
<PAGE>

eliminates any contention that their sales to each other are a result of
preferential dealing between ComEd and PECO./17/

VIII.  ACCOUNTING

       In the Merger Policy Statement, the Commission stated that it would no
longer consider the proposed accounting treatment as a separate factor but
instead ruled that "proper accounting treatment is simply a requirement for all
mergers."  Merger Policy Statement at 30,126.  The Merger will be accounted for
under the purchase method in accordance with generally accepted accounting
principles.  Exhibit No. APP-200 at 16.

IX.    ATTACHMENTS, OTHER FERC FILINGS, AND CONFIDENTIAL TREATMENT

       A.   Application

       The following information is included in the Application:

            .  Direct Testimony of Kenneth G. Lawrence (Exhibit No. APP-100) and
       associated exhibits, which provide an overview of the Merger from PECO's
       perspective and a description of the benefits of the Merger;

            .  Direct Testimony of Robert K. McDonald (Exhibit No. APP-200),
       which provide an overview of the Merger from ComEd's perspective, a
       description of the benefits of the Merger and how the new system will be
       integrated;

            .  Direct Testimony of Dr. William Hieronymus (Exhibit No. APP-300)
       and associated exhibits, which set forth the Appendix A analysis required
       by the Merger Policy Statement and analyze the competitive impact of the
       Merger;

            .  Direct Testimony of Steven T. Naumann (Exhibit No. APP-400) and
       associated exhibits, which describes ComEd's transmission system and,
       among other

________________

/17/   See Ameren Services Co., et al., 86 FERC 61,212 (P) (1999).

                                       24
<PAGE>

     matters, explains why ComEd, prior to the effectiveness of the ITC/MISO
     initiatives, lacks vertical market power;

          .  Direct Testimony of Robert N. Spencer (Exhibit No. APP-500), which
     describes PECO's wholesale requirements and transmission system and the
     ratepayer protection mechanisms proposed for PECO's transmission customers;
     and

          .  Direct Testimony of Arlene Juracek (Exhibit No. APP-600), which
     explains the ratepayer protection mechanisms proposed for ComEd's wholesale
     requirements and transmission customers.

     Also attached are the Exhibits A through I as required by Section 33.3 of
the Commission's regulations.

     B.   Other FERC Filings

     Market-Based Rates Codes Of Conduct.  The Applicants have committed to
     -----------------------------------
adhere to the rules that the Commission imposes on trades of non-power goods and
services between wholesale power marketing affiliates and public utilities that
serve franchised service territories. See Section VII of this Application.

     Order No. 889 Standards Of Conduct.   The Applicants hereby commit that,
     ----------------------------------
effective as of the date of this filing, they will, for purposes of Order No.
889, treat each other as if they were already affiliated companies.  Therefore,
ComEd's transmission function personnel will treat PECO's merchant function
personnel in the same manner that ComEd's transmission function personnel treats
ComEd's merchant function personnel.  PECO's transmission function personnel
will treat ComEd's merchant function personnel in the same manner.  Upon
consummation of the Merger, Applicants will file a combined Order No. 889
Standards of Conduct.

     C.  Confidential Treatment Of Information

                                       25
<PAGE>

     Certain agreements providing for the sale of power to ComEd in the ComEd
market are referred to in Dr. Hieronymus' testimony.  Some of these agreements
are included in Volume III of this Application.  However, several of the
agreements involve transactions that have not yet commenced and will not
commence for another several months.  Therefore, these agreements have not been
filed with Commission.  In addition, although the power purchase agreements with
Mission have been filed with the Commission, the were filed under approved
confidential seal./18/ Further, Exhibit No. APP-411 also describes the Mission
agreements.  With respect to all such agreements that are not already in the
public domain, and Exhibit No. APP-411, the Applicants request confidential
treatment pursuant to 18 C.F. R. (S) 388.112 (1999).  The agreements were
negotiated at arms-length and the disclosure of their rates, terms, and
conditions at this time would unnecessarily harm ComEd.  The Applicants have
included copies of the confidential agreements (as Dr. Hieronymus' workpapers)
and Exhibit No. APP-411 in the original copy of this Application in sealed
envelopes stamped with the legend:  "Contains Privileged Information -- Do Not
Release."  All other copies of the Application filed with the Commission (and
served on interested parties) contain a statement that the confidential
agreements and Exhibit No. APP-411 have been removed for privileged
treatment./19/  ComEd anticipates that it will be able to lift all requested
confidential treatment of the Mission power purchase agreements in the very near
future.

________________

/18/ Commonwealth Edison Co., et al., 89 FERC (P) 62,105 (1999).

/19/ The computer model underlying Dr. Hieronymus' study also is being submitted
     on a confidential basis pursuant to 18 C.F.R. (S) 388.112 (1999). The model
     is proprietary to PHB and was developed at great cost to PHB. The
     disclosure of the model to the public without limit will adversely impact
     PHB. One copy of the model is included with the original copy of the
     Application in a sealed envelope. All other copies of the Application
     contain a statement that the information has been removed. However, parties
     may obtain a copy of Dr. Hieronymus' model after executing a
     Confidentiality Agreement with PHB-Hagler Bailly. Arrangements for a copy
     of the model must be made by contacting Ms. Julie Solomon at 202-828-8769.

                                       26
<PAGE>

     Additionally, the original copy of the Application includes certain of Dr.
Hieronymus workpapers on CD ROM, which contains certain output information
(market share data for market participants) that will be necessary to evaluate
Dr. Hieronymus' market analysis. This CD ROM includes identification of several
sellers of power who have not authorized the Applicants to publicly disclose
their names. Accordingly, pursuant to 18 C.F.R. (S) 388.112, the Applicants also
request confidential treatment of the CD ROM included in the original copy of
the Application. The Applicants will provide copies of the CD ROM with sellers'
identification withheld to all persons on whom this Application is served within
a few days after the date of filing, if not sooner, and to all intervenors upon
request. The names of these sellers are not needed to analyze Dr. Hieronymus'
analysis or his conclusions. In any event, the CD ROM containing the
identification of the sellers will be provided to any participant in the
proceeding under the protection of an executed confidentiality agreement.
Pursuant to 18 C.F.R. (S) 388.112(b)(iv), any communications regarding the
confidential information should be addressed to the following:

                    Robert S. Waters, Esq.
                    Jones, Day, Reavis & Pogue
                    51 Louisiana Avenue, N.W.
                    Washington, D.C.  20001
                    (202) 879-3687 - voice
                    (202) 626-1700 - fax

X.   INFORMATION REQUIRED BY SECTION 33.2 OF THE COMMISSION'S REGULATIONS

     A.   Names and Addresses of Principal Business Offices

     Commonwealth Edison Company                       PECO Energy Company
     10 South Dearborn Street, P.O. Box 767            2301 Market Street
     Chicago, IL 60690                                 Philadelphia, PA  19103

                                       27
<PAGE>

     B.   Names And Addresses Of Persons Authorized To Receive Notices And
          Communications With Respect To The Application

     For ComEd                                     For PECO
     ---------                                     --------

     Rebecca Lauer, Esq.                           Paul Bonney, Esq.
     Peter J. Thornton, Esq.                       PECO Energy Company
     Commonwealth Edison Company                   2301 Market Street
     125 South Clark Street                        S23-1
     Room 1500                                     Philadelphia, PA  19103
     Chicago, Illinois  60603                      215-841-4252 - voice
     312-394-3517 - voice                          215-568-3389 - fax
     312-394-3950 - fax

     Robert S. Waters, Esq.                        Floyd L. Norton, IV, Esq.
     Jones, Day, Reavis & Pogue                    Morgan, Lewis & Bockius LLP
     51 Louisiana Avenue, N.W.                     1800 M Street, N.W.
     Washington, D.C. 20001                        Washington, D.C.  20036
     202-879-3687 - voice                          202-467-7620 - voice
     202-626-1700 - fax                            202-467-7176 - fax

     Stan Berman, Esq.
     Heller, Ehrman, White & McAuliffe
     6100 Bank of America Tower
     701 Fifth Avenue
     Seattle, Washington  98104
     202-389-4276 - voice
     206-447-0849 - fax

     C.   Designation of Territories Served, by Counties And States

     ComEd provides electric service in northern Illinois, in all or portions of
the following 25 counties:  Boone, Bureau, Carroll, Cook, DeKalb, DuPage, Ford,
Grundy, Henry, Jo Daviess, Kane, Kankakee, Kendall, LaSalle, Lake, Lee,
Livingston, Marshall, McHenry, Ogle, Stephenson, Whiteside, Will, Winnebago, and
Woodford.  ComEd also provides wholesale service for the requirements of the
following municipalities:  Batavia, Naperville, and St. Charles, Illinois;  and
Dowagiac, Michigan.

                                       28
<PAGE>

     PECO provides retail electric and natural gas service in Pennsylvania, in
all or portions of the following counties: Bucks, Lancaster, Montgomery,
Chester, York, and Delaware.  PECO also serves customers in the City of
Philadelphia.

     D.   Description Of Facilities Owned Or Operated For Transmission Of
          Electric Energy Or The Sale Of Electric Energy At Wholesale In
          Interstate Commerce

     As of December 31, 1998, ComEd owned approximately 5,400 circuit miles of
high voltage lines that are 138 kV and above.  As of December 31, 1998, PECO
owned approximately 1,121 circuit miles of high voltage lines that are
controlled by PJM.  See Section III of this Application for a description of the
Applicants' generation facilities.

     E.   Description Of Transaction And Statement As To Consideration

     The Merger is described in Section IV of this Application.  The
consideration for the Merger is inherent in the exchange of shares at closing as
negotiated at arms-length between the parties and is described in the Agreement
and Plan of Exchange and Merger attached hereto as Exhibit H.  The terms of the
Merger have been approved by each Applicant's Board of Directors, including
outside directors.  The Applicants were assisted by their own outside investment
bankers in the negotiation process.  The proposed Merger is voluntary and must
be approved by voting shareholders.

     F.   Description Of Facilities Involved In The Transaction

     The jurisdictional facilities of ComEd, PECO and their affiliated public
utilities are described herein.

                                       29
<PAGE>

     G.   Statement Of The Cost Of The Facilities Involved In The Transaction

     See Exhibit C.

     H.   Statement As To The Effect Of The Transaction Upon Any Contract For
          The Purchase, Sale, Or Disposition, Or Interchange Of Electric Energy

     The Merger will not have a material effect on any contract for the
purchase, sale, or interchange of electric energy.  The Applicants' commitment
to ratepayers is described in Section VI. C. of this Application.

     I.  Statement As To Other Required Regulatory Approvals

     The Applicants must file a Notice of Reorganization with the Illinois
Commerce Commission.  The Pennsylvania Public Utility Commission must approve
the Merger.  A notification of the Merger will be filed with the Federal Trade
Commission and the U.S. Department of Justice pursuant to the Hart-Scott-Rodino
Act.  The Nuclear Regulatory Commission must approve the Merger with respect to
the financial commitments relative to nuclear generating stations owned by ComEd
and PECO.  The Securities and Exchange Commission must approve the Merger with
respect to the creation of a registered public utility holding company and
compliance with the Public Utility Holding Company Act of 1935.  The Federal
Communications Commission must approve the Merger with respect to the
Applicants' telecommunications subsidiaries.

 J.  Facts Showing That The Merger Is Consistent With The Public Interest

     The facts relied upon to show that the proposed Merger is consistent with
the public interest are set forth in this Application.  The Merger will enhance
competition in both the wholesale and retail markets and will enhance the
ability of ComEd and PECO, already recognized leaders in the industry for their
pro-competitive initiatives, to promote further

                                       30
<PAGE>

competitive developments. Both companies have embraced and implemented pro-
competitive retail access and restructuring in their respective states.
Likewise, ComEd and PECO are strong supporters of the Commission's independent
transmission system initiatives, and the Applicants will continue to provide
leadership for the development of an RTO and other competition enhancing
initiatives while this Application is under review and after the Merger is
closed.

     The proposed Merger will combine two families of companies with similar
business and strategic goals into a financially stronger national energy system
more suited to operate in the evolving energy markets.  The combined system will
have the resources, experience and talent to provide its customers with high
quality and cost-efficient services, all of course subject to regulation
intended to protect the public interest.  Both ComEd and PECO are respected and
experienced operators of nuclear power plants, and the combination and continued
development of a joint nuclear fleet will ensure safe, reliable, low-cost, and
clean electricity supplies for consumers.

     The Applicants  recognize that, in order to compete in the evolving
electricity market, they must expand the geographic scope of their activities.
However, ComEd also recognizes that, in order to receive the regulatory
approvals necessary to expand the geographic scope of the system in which it
operates, it should reduce its transitional concentration of generation control
in the State of Illinois.  ComEd accomplished the first step in becoming a fully
competitive utility in the new market by selling, or agreeing to sell, all of
its non-nuclear generating units. ComEd's second step on the path to becoming a
competitive utility in the emerging electric marketplace is the proposed Merger
with PECO.  Although the merged system will own approximately 22,000 MW of
generation, that generation is spread over a much larger geographic area than
ComEd's existing area (approximately 700 miles from east to west) and is not
concentrated in a single market.  (Moreover, PECO's generation lies within the
PJM area,

                                       31
<PAGE>

which contains a highly efficient, centralized and liquid energy trading
market.) At the same time, upon acquisition of ComEd's generating units, Mission
will become a formidable new competitor in the Midwest power market. Thus, by
the combination of pre-merger sales of generating units in ComEd's local market
and as a consequence of this Merger, ComEd and PECO will have increased
competition in Midwest markets by enabling entry of formidable competitors,
while in no way diminishing the intense competition that already exists in PJM.
The Commission should seek to encourage restructuring efforts that enhance
competition in the evolving utility market.

     K.   Brief Statement Of Franchises Held

     In the City of Chicago, ComEd operates under a nonexclusive franchise
ordinance effective until December 31, 2020.  Utility operations outside of the
City of Chicago are conducted in municipalities under nonexclusive franchises
and, where required, under certificates of convenience and necessity granted by
the ICC.  ComEd holds nonexclusive franchises and/or certificates of convenience
and necessity in 395 municipalities outside the City of Chicago.  The following
summarizes the expiration dates of ComEd's franchises:

          Franchise Expiration Period            Number of Municipalities
          ---------------------------            ------------------------

          1999-2006                                           2
          2007-2017                                          10
          2018-2028                                           3
          2029-2039                                           1
          2040 and subsequent years                         376
          No stated time limit                                3

     As of January 1, 2000, PECO will not hold any franchises to serve retail
electric customers.  In accordance with the terms of a settlement approved by
the Pennsylvania Public Utility Commission consistent with the Pennsylvania
Electricity Generation Customer Choice and Competition Act, all of PECO's retail
electric customers will be entitled to purchase their electric generation supply
requirements from alternative electric generation suppliers.  PECO

                                       32
<PAGE>

will serve as provider of last resort to retail electric customers in the City
of Philadelphia, Pennsylvania, and Bucks, Montgomery, Chester, York, and
Delaware counties, Pennsylvania. PECO also provides distribution service to
those "provider of last resort" customers.

     PECO holds franchises to provide retail gas service in Bucks, Montgomery,
Chester, Delaware, and Lancaster counties, Pennsylvania.  The Commonwealth of
Pennsylvania recently enacted legislation under which retail gas customers will
also be entitled to purchase their gas supply requirements from alternative
suppliers.  Upon the implementation of the legislation, PECO will not hold any
exclusive franchises to sell gas to retail customers, although it expects it
will serve as provider of last resort to its existing retail gas customers and
continue to provide distribution service to those "provider of last resort"
customers.

     L.   Form Of Notice

     The Applicants have included a form of notice, in both hard copy and on
diskette, suitable for publication in the Federal Register.

                                       33
<PAGE>

     XI.  CONCLUSION

          For the reasons set forth herein, including the accompanying testimony
     and exhibits, the Applicants request that the Commission:

     1.   find that the Merger will not have an adverse effect on competition,
          rates or regulation, and that this filing satisfies all applicable
          requirements for authorization of the Merger under Section 203 of the
          FPA and Part 33 of the Commission's regulations;

     2.   approve the Merger and grant any and all other authorizations or
          approvals incidental thereto that may be required;

     3.   expeditiously issue such approvals and related authorizations without
          an evidentiary hearing based on the information set forth in this
          Application and accompanying exhibits; or indicate any conditions
          that, if agreeable to the Applicants, would result in conditional
          approval of the Merger without an evidentiary hearing; and

                                       34
<PAGE>

     4.   waive any filing requirements or other regulations as the Commission
          may find necessary or appropriate to allow this Application to be
          accepted for filing and granted.

                                  Respectfully submitted,
                                  COMMONWEALTH EDISON COMPANY
                                  on its behalf and on behalf of its
                                  public utility affiliates



                              By: __________________________________
                                  Rebecca Lauer, Esq.
                                  Peter J. Thornton, Esq.
                                  Commonwealth Edison Company
                                  125 South Clark Street
                                  Chicago, IL  60603
                                  312-394-3517 - voice
                                  312-394-3950 - fax


                              By: __________________________________
                                  Paul T. Ruxin, Esq.
                                  Robert S. Waters, Esq.
                                  Jones, Day Reavis & Pogue
                                  51 Louisiana Avenue, N.W.
                                  Washington, D.C.  20001
                                  202-879-3939 - voice
                                  202-626-1700 - fax



                              By: __________________________________
                                  Stan Berman, Esq.
                                  Heller, Ehrman, White & McAuliffe
                                  6100 Bank of America Tower
                                  701 Fifth Avenue
                                  Seattle, Washington  98104-7098
                                  206-389-4276 - voice
                                  206-447-0849 - fax

                                       35
<PAGE>

                                  PECO ENERGY COMPANY
                                  on its behalf and on behalf of its
                                  public utility affiliates


                              By: ___________________________________
                                  Paul Bonney, Esq.
                                  PECO Energy Company
                                  2301 Market Street  S23-1
                                  Philadelphia, PA  19103
                                  215-841-4252 - voice
                                  215-568-3389 - fax


                              By: ___________________________________
                                  Floyd L. Norton, IV, Esq.
                                  Gregory W. Camet, Esq.
                                  Michael C. Griffen, Esq.
                                  Morgan, Lewis & Bockius  LLP
                                  1800 M Street, N.W.
                                  Washington, D.C.  20036
                                  202-467-7620 - voice
                                  202-467-7176 - fax

Dated: November 22, 1999

                                       36

<PAGE>

                                                                EXHIBIT 99-D-1.2


                           UNITED STATES OF AMERICA
                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION


Commonwealth Edison Company    )
on behalf of itself and its    )
public utility affiliates      )      Docket No. EC00-___-000
                               )
and                            )
                               )
PECO Energy Company            )
on behalf of itself and its    )
public utility affiliates      )



                             JOINT APPLICATION OF
                          COMMONWEALTH EDISON COMPANY
                     AND ITS PUBLIC UTILITY AFFILIATES AND
                              PECO ENERGY COMPANY
                       AND ITS PUBLIC UTILITY AFFILIATES
                            FOR APPROVAL OF MERGER

                   PREPARED DIRECT TESTIMONY AND EXHIBITS OF
                             WILLIAM H. HIERONYMUS
                            ON BEHALF OF APPLICANTS
<PAGE>

                                                                    Page 1 of 53

                              DIRECT TESTIMONY OF
                             WILLIAM H. HIERONYMUS

                               Table of Contents
                               -----------------

<TABLE>
<S>                                                                   <C>
I.   INTRODUCTION..................................................    2
II.  PURPOSE, SUMMARY OF ANALYSIS AND CONCLUSIONS..................    3
     Purpose.......................................................    3
     Summary of Analysis and Conclusions...........................    4
     Organization of Testimony.....................................   12
III. DESCRIPTION OF THE PARTIES....................................   12
     Commonwealth Edison Company...................................   12
     PECO Energy Company...........................................   15
     Deregulation in Pennsylvania and Illinois.....................   17
IV.  FRAMEWORK FOR THE ANALYSIS....................................   18
V.   DESCRIPTION OF METHODOLOGY....................................   22
VI.  IMPACT OF THE MERGER ON COMPETITION...........................   33
     Economic Capacity.............................................   33
       Sensitivities...............................................   40
     Available Economic Capacity...................................   41
     Applicants' Lack of Control Over Withdrawable Capacity........   45
     Other Potential Market Power Issues...........................   50
VII. CONCLUSION....................................................   53
</TABLE>
<PAGE>

                                                                    Page 2 of 53

                               I.   INTRODUCTION
                               -----------------

Q.   PLEASE STATE YOUR NAME AND BUSINESS ADDRESS.

A.   My name is William H. Hieronymus.  My business address is PHB Hagler
     Bailly, Inc. ("PHB Hagler Bailly"), One Memorial Drive, Cambridge,
     Massachusetts 02142.

Q.   BY WHOM ARE YOU EMPLOYED?

A.   I am Senior Vice President of PHB Hagler Bailly, Inc., the commercial
     consulting subsidiary of Hagler Bailly.  Hagler Bailly is a worldwide
     provider of consulting, research and other professional services to
     corporations and governments on energy, telecommunications, transportation
     and the environment.

Q.   WHAT IS YOUR EDUCATIONAL BACKGROUND AND WORK EXPERIENCE?

A.   I received my Bachelor's degree from the University of Iowa in 1965, my
     Master's degree in economics in 1967 and a Doctoral degree in economics in
     1969 from the University of Michigan, where I was a Woodrow Wilson Fellow
     and National Science Foundation Fellow.  After serving in the U.S. Army, I
     began my consulting career.  In 1973, I joined Charles River Associates
     Inc. as a specialist in antitrust economics.  By the mid-1970s my focus was
     principally on the economics of energy and network industries.  In 1978, I
     joined Putnam Hayes & Bartlett, Inc., where my consulting practice has
     focused almost exclusively on network industries, particularly electric
     utilities.  Putnam, Hayes & Bartlett, Inc. merged with Hagler Bailly, Inc.
     in 1998.

     During the past 25 years, I have completed numerous assignments for
     electric utilities; state and federal government agencies and regulatory
     bodies; energy and equipment companies; research organizations and trade
     associations; independent power producers and investors; international aid
     and lending agencies; and foreign governments.  While I have worked on most
     economics-related aspects of the utility sector, a major theme has been
     public policies and their relation to the operation of utility companies.

     Since about 1988, the main focus of my consulting has been on electric
     utility industry restructuring, regulatory innovation and privatization.
     In that year, I began work on the
<PAGE>

                                                                    Page 3 of 53

     restructuring and privatization of the electric utility industry of the
     United Kingdom, an assignment on which I worked nearly full time through
     the completion of the restructuring in 1990. I also led a major study of
     the reorganization of the New Zealand electricity sector, focusing mainly
     on competition issues in the generating sector. Following privatization of
     the U.K. industry, I continued to work in the United Kingdom for
     electricity clients based there and I was also involved in restructuring
     studies concerning the former Soviet Union, Eastern Europe, the European
     Union and specific European countries.

     Late in 1993, I returned to the United States, where I have worked on
     restructuring, regulatory reform and, increasingly, the competitive future
     of the U.S. electricity industry. In this context, I have testified before
     FERC and state commissions on market power issues concerned with several
     electric utility mergers (including convergence mergers), power pool tariff
     filings, sales and purchases of jurisdictional assets and market rate
     applications. More generally, I have testified before state and federal
     regulatory commissions, federal and state courts and legislatures on
     numerous matters concerning the electric utility and other network
     industries. My resume is included as Exhibit No. APP-301.

              II.   PURPOSE, SUMMARY OF ANALYSIS AND CONCLUSIONS
              --------------------------------------------------

Purpose

Q.   WHAT IS THE PURPOSE OF YOUR TESTIMONY?

A.   I have been asked by Commonwealth Edison Company ("ComEd") and PECO Energy
     Company ("PECO") (collectively, the "Applicants") to determine the
     potential competitive impact of their proposed merger on electricity
     markets.  I performed the Competitive Analysis Screen described in Appendix
     A to the Commission's Merger Policy Statement ("Order No. 592"),/1/ which
     in turn is intended to comport with the Department of Justice and Federal
     Trade Commission ("DOJ/FTC") Horizontal Merger


_________________________
/1/  Order No. 592, Inquiry Concerning the Commission's Merger Policy Under the
     Federal Power Act: Policy Statement, FERC Stats. & Regs. (Regulations
     Preambles) (P) 31,044 (1996), on reconsideration, Order No. 592-A, 79 FERC
     (P) 61,321 (1997).

<PAGE>

                                                                    Page 4 of 53

     Guidelines ("Guidelines"). As appropriate, my testimony also takes into
     consideration the Commission's Notice of Proposed Rulemaking ("Merger
     NOPR")./2/ The primary focus of my testimony is potential horizontal market
     power effects (i.e., those arising from the combination of electric
     generating assets) that potentially could result in creating or enhancing
     the ability to increase prices in the electricity market. I also address
     vertical effects concerning barriers to entry that might undercut the
     presumption that long-run generation markets are competitive. I have
     reviewed the testimony of the Applicants' witnesses, Steven T. Naumann and
     Robert N. Spencer, who explain why the Applicants do not have any realistic
     ability to exert vertical market power in the Midwest as a result of their
     control over transmission facilities during the period before such control
     is transferred to independent entities.


Summary of Analysis and Conclusions

Q.   DOES YOUR ANALYSIS INDICATE THAT APPLICANTS WILL BE ABLE TO RAISE THE
     PRICES OF ELECTRICITY ABOVE THE LEVELS THEY COULD HAVE CHARGED ABSENT THE
     MERGER?

A.   No, quite the contrary.  The Applicants' merger, when combined with the
     generation-based mitigation measures to which they will agree as a
     condition of merger approval, if the Commission is persuaded that such
     mitigation is necessary, will not lead to material increases in
     concentration or in Applicants' market share in any relevant market.  My
     analysis provides strong support for the conclusion that the merger will
     not adversely impact competition in any relevant market or enable
     Applicants to raise prices above the levels they would have been able to
     charge if there had been no merger.  Thus, I recommend that the Commission
     find that the merger will not adversely affect competition and, insofar as
     market power is the critical issue, should approve the merger.

     I have performed the Appendix A screen analysis to assess whether the
     merger should raise any competitive concerns.  In accordance with Appendix
     A and the Commission's regulations, I performed screen analyses of two
     different measures:  Economic Capacity


_______________________
/2/  Revised Filing Requirements Under Part 33 of the Commission's Regulations
     ("Merger NOPR"), 83 FERC (P)61,027 (1998), 63 Fed. Reg. 20340 (April 24,
     1998).
<PAGE>

                                                                    Page 5 of 53

     and Available Economic Capacity. As will be explained below, I rely, and
     encourage the Commission to rely, solely on the analysis of Economic
     Capacity. The Available Economic Capacity numbers are too unreliable to be
     useful and do not inform merger policy under the evolving competitive
     conditions relevant to this merger.

     My analysis of Economic Capacity shows that screen failures occur only in
     the ComEd market and are largely traceable to the small amount of
     generation rights that PECO has in the ComEd market pre-merger, namely a
     300 MW pre-merger long term power sale from ComEd to PECO.  Additionally,
     PECO controls approximately 30 to 63 MW of energy from its uncommitted 233
     MW share of the Clinton nuclear plant that is presumed to be imported into
     the ComEd market (based on the prorated expected share of ATC into ComEd).
     Little energy from PECO's other generation, located primarily in eastern
     and central Pennsylvania, reaches the ComEd market.  In simple terms, the
     screen failure arises because PECO would have been a minor competitor of
     ComEd in the ComEd destination market pre-merger.  Post-merger, that minor
     competitor will be consolidated with ComEd, so that (in the absence of
     mitigation) there will be a slight lessening of competition in the region.

     The screen failure in the ComEd market is linked to the 300 MW sale.  Once
     the 300 MW sale expires, there will no longer be a screen failure. While
     the lessening of competition in the intervening period would be minimal,
     Applicants are nonetheless prepared to mitigate it in a way that will
     eliminate the screen failure and ensure that competition is preserved at
     its pre-merger level if the Commission is not persuaded that such
     mitigation is unnecessary.  As described in the Application, Applicants are
     willing to sell PECO's rights under the 300 MW contract to an unaffiliated
     entity.  Because of the sale to an unaffiliated third party, the level of
     competition pre-merger will be preserved.  My analysis demonstrates that
     this mitigation is fully effective. While the mitigation might be
     considered "interim", the period that it covers: a) extends to the
     termination of the PECO contract that is the principal cause of the screen
     failure; b) extends beyond the last date on which ComEd has option or
     contract rights to the capacity that it is divesting to Edison Mission; and
     c) extends far enough into the future to allow economic entry of
     substantial amounts of new capacity.
<PAGE>

                                                                    Page 6 of 53

     Apart from these pre-mitigation screen failures in the ComEd market, there
     are no significant adverse effects of the merger.  As discussed below, the
     analysis demonstrates little overlap in markets between Applicants and
     little participation by ComEd in the PJM markets where the bulk of PECO's
     generation is located.  This conclusion is supported by Applicants'
     historic sales patterns which show a quite similar lack of significant
     overlap.

     Applicants are prepared, if required by the SEC, to contract for a 100 MW
     firm path from ComEd to PECO.  This path will be used only when it is
     economic to transfer power from the ComEd to PECO areas, having taken
     alternative uses of the power into account.  As is shown in the testimony
     of Mr. Naumann, the principal effect of this path on transmission, when it
     is used, is to reduce west-to-east ATCs from northern Illinois to eastern
     PJM by approximately 100 MW. Applicants' analysis of the power flow effects
     of the path, which is incorporated into my market power study, shows that
     loop flows are not very different from the contract path effects.  Use of
     the 100 MW path reduces concentration in the ComEd market wherein the
     screen is failed.  The path, and resulting changes in loop flows when the
     path is used, creates no screen failures in any other market.

     In performing the Appendix A analysis, I resolved uncertainties about which
     assumptions to use by making conservative assumptions; that is, I made the
     assumptions that were most likely to detect an increase in market
     concentration in the relevant destination markets./3/  In fact, actual
     increases in market concentration will likely be much less than calculated
     using the Appendix A screen.  Most importantly, the screen assumes that
     ComEd continues to control all of the 9,300 MW of generation that it is the
     process of divesting. A more forward-looking perspective would recognize
     that the restructuring of generation asset ownership undertaken by ComEd in
     the past several years will result in ultimately relinquishing control over
     this generation.  This restructuring, coupled with the participation by
     both of the Applicants in regional transmission organizations, is


________________

/3/  For example, as discussed infra, the only significant screen violations
     arise from PECO's long term purchase from ComEd. The power associated with
     that contract is deliverable in the American Electric Power ("AEP") or
     Ameren markets, not in ComEd. However, in my analysis I assumed that PECO
     could sell power from that contract in the ComEd market without having to
     acquire transmission into the ComEd market. The screen failures in my
     analysis are directly traceable to that assumption. Had I assumed that the
     PECO power was located at the point of contract delivery, these screen
     failures would not have occurred.
<PAGE>

                                                                    Page 7 of 53

     unquestionably pro-competitive and will broadly benefit electric markets in
     the affected regions.

     The conclusions from my analysis are consistent with and supported by the
     basic facts surrounding the merger.  ComEd is located in the Mid-America
     Interconnected Network, Inc. ("MAIN"), with its generation and distribution
     system located primarily in Chicago and Northern Illinois, and PECO is
     located in the Mid-Atlantic Area Council ("MAAC") (which consists of a
     single control area, PJM Interconnection, L.L.C. ("PJM")). PECO's
     generation and distribution system is located primarily in Philadelphia and
     Eastern Pennsylvania.  The distance between Chicago and Philadelphia is
     almost 700 miles. Electrically, utilities in East Central Area Reliability
     Coordination Agreement ("ECAR") and Southeastern Electric Reliability
     Council ("SERC") are located between ComEd and PECO.  There are at least
     two intervening utilities on all paths between ComEd and PJM.

     As is shown in sales data contained in my workpapers, Applicants had
     overlapping sales to a number of utilities in 1997 and 1998.  However, the
     amounts sold by at least one of the Applicants were small in virtually all
     cases.  If overlap markets are defined as those in which each Applicant
     sold at least 100,000 MWhs (equivalent to only 11.4 MW on a year-round
     basis), there were only six such overlap markets in 1997 and 1998
     (excluding ComEd's own market). In only one market, Michigan Electric
     Coordinating Council ("MECS"), did each Applicant sell more than 500,000
     MWh./4/

     More generally, PECO sells only small amounts in Mid-Continent Area Power
     Pool ("MAPP") and MAIN.  Its 1998, total sales to utilities in these
     reliability councils were about 2 million MWh, less than the amount
     purchased under its 300 MW contract with ComEd; about 60 percent of that
     total was sold back to ComEd, mostly out of its 300 MW contract.
     Conversely, other than the contract with PECO, ComEd sells only trace
     amounts (43,000 MWh in 1998) to utilities in PJM, NYPP and NEPOOL.  Neither

_____________________

/4/  Sales information is based on sales contracts reported in FERC Form 1s. The
     1997 markets were AEP, Cinergy, Illinois Power (IP), Tennessee Valley
     Authority (TVA), Virginia Electric Power (VP) and Wisconsin Energy Company
     (WEP). The 1998 markets were Allegheny Energy (APS), AEP, Cinergy, IP, MECS
     and TVA. Because data for Applicants' power marketing operations are not
     segregated from utility sales from their owned and controlled resources,
     these data may overstate the amount of overlap. As discussed infra, PECO,
     in particular, is a highly active power marketer and its Form 1 reports
     sales all over the country, including sales to utilities located thousands
     of miles away from any PECO generation (e.g., in southern California and
     Washington state).
<PAGE>

                                                                    Page 8 of 53

     Applicant is among the most significant sellers in the remaining overlap
     areas, ECAR and VACAR.  The fact that Applicants, in general, do not
     overlap is highly significant to the analysis.  It means that the merger
     will not materially reduce the level of competition. That is, in areas
     where they do not overlap at all, the merger will have no effect on the
     structure of competition in the region, and would thus be expected to have
     no effect on prices in the region.  In the areas where they do overlap, the
     market share of at least one Applicant is so small that there would be no
     appreciable effect on the level of competition, and the merger would not
     give the Applicants the ability to injure the overlapping markets or raise
     prices.

     Other factors, not taken into account in the Appendix A analysis, support
     the conclusion that the merger does not create a market power issue.  At
     its core, the market power issue is whether the merger creates or enhances
     the ability of Applicants to raise prices by profitably withholding
     capacity or offering it for sale only at anticompetitive prices.  In this
     case, ComEd brings to the merger very little capacity that can be withheld
     from the market. At the very high load times when prices are most readily
     and profitably manipulated, ComEd is short of capacity.  ComEd controls
     little capacity that realistically could be withheld at other times.  The
     bulk of the non-nuclear capacity that is "controlled" by ComEd consists of
     options or contracts for the capacity that it has sold.  ComEd is not the
     plant operator for any of this capacity.  If it does not exercise an
     option, the capacity reverts wholly to the owner.  In his testimony, Mr.
     Naumann explains the limits on ComEd's control of the capacity that is
     being sold to Edison Mission Energy.  The only capacity actually operated
     by ComEd is its nuclear capacity.  For physical, economic and regulatory
     reasons (i.e., NRC oversight), nuclear capacity is exceptionally hard to
     withhold, either strategically or tactically.  Both ComEd and PECO have a
     high percentage of nuclear and other low incremental cost generation in
     their portfolios, which means that their winning strategy is to sell high
     volumes of electricity at prices lower than those of their competitors.
     Given the low levels of participation of each of the Applicants in the
     other's markets today, the merger does not provide a new strategy that
     would allow them to manipulate markets in order to raise prices.

     The merger creates no material vertical market power issues related to
     transmission ownership and operation.  This lack of ability to exercise
     vertical market power, and
<PAGE>

                                                                    Page 9 of 53

     evidence that ComEd has not done so in the past, is discussed at length by
     Mr. Naumann. PECO is a member of the PJM Interconnection, an ISO with an
     associated power exchange. ComEd is a member of the Midwest Independent
     System Operator ("MISO"), an ISO that has been approved by the FERC and is
     currently scheduled to begin operations on June 1, 2001. In the interim,
     ComEd provides open access service under Orders No. 888 and 889. Moreover,
     as discussed by Mr. Naumann, ComEd will be transferring all control area
     responsibility to an Independent Transmission Company ("ITC"). PECO has no
     control area responsibility, as its control area is operated by PJM. As
     also discussed by Mr. Naumann and Mr. Spencer, neither ComEd nor PECO is a
     security coordinator with the ability to direct transmission curtailment.
     Moreover, Mr. Naumann explains that ComEd's ability to withhold capacity
     from the market will be severely limited.

     Neither utility controls significant fuels supplies or fuels delivery
     systems.  PECO operates a gas distribution system in four counties that
     surround, but do not include, the city of Philadelphia.  Its gas service
     area includes three gas-fired independent power stations, two of which have
     bypassed the distribution system.  The third, which is only 28 MW, has a
     readily available bypass option and is currently negotiating for a
     discounted distribution rate.  Even if PECO were in a position to exercise
     vertical market power over the gas-fired generation served by its LDC, that
     generation is very remote from ComEd and any vertical effects would not
     redound to ComEd and hence would have no nexus to this merger.  Neither
     utility possesses a monopoly over potential generation sites.

Q.   DID YOUR APPENDIX A ANALYSIS TAKE INTO ACCOUNT NEW GENERATION PLANNED OR
     BEING BUILT IN THE REGION, OR NEW PLANNED POWER TRANSACTIONS INVOLVING
     APPLICANTS OR OTHERS IN THE AFFECTED REGIONS?

A.   Yes, but only to a limited extent.  Numerous utilities, IPPs and others
     have responded to the capacity shortages that have affected the Midwest
     over the past several summers by planning the construction of significant
     new generation resources.  Estimates of the planned generation exceed
     20,000 MW, but I included far less than this in my analysis. Among the new
     generation that I did include in my analysis is a 250 MW affiliated
<PAGE>

                                                                   Page 10 of 53

     generation unit being considered in North Chicago (although I am informed
     that a firm decision to build the unit has not been made).  As I discuss
     later, for all other new generation, I included only that planned
     generation which has passed sufficient project, regulatory and/or financing
     hurdles such that its construction is relatively certain. If even a
     material fraction of the planned additions are built, market concentration
     will be lower.

     It is also my understanding that ComEd, like other utilities in the region,
     is shopping for new power supplies to complement its power supply portfolio
     in coming years.  This would be accomplished with power purchase contracts
     of various durations. Such purchases would have been made even if there had
     been no merger, so they have little impact on the analysis. I am told that
     ComEd does not at present know the amount or duration of such purchases,
     but I conservatively assumed a 300 MW ComEd purchase from a planned
     generating facility in its control area that would not otherwise have been
     considered to be sufficiently certain to be included in my analysis.

Q.   PLEASE PROVIDE AN OVERVIEW OF THE APPENDIX A ANALYSES YOU CONDUCTED USING
     THE DELIVERED PRICE TEST.

A.   I conducted several different analyses of the Economic Capacity supply
     measure that provide the Commission with a full and comprehensive analysis
     of the potential impacts of the merger and proposed mitigation by the
     Applicants.  These analyses were structured to illuminate the causes of any
     changes in destination market HHIs, and to assist the Commission in
     determining which were, and which were not, due to potentially adverse
     effects of the merger on competition.

     The first analysis of the merger's impact on power markets that I undertook
     was the effect of combining Applicants' pre-merger market shares.  This
     analysis is generally referred to as the "2AB method."/5/ It is essentially
     an analysis of a merger where there are no economic changes resulting from
     a merger - no rate impact, no change in transmission for integration
     purposes, etc. This analysis properly depicts the effects of the merger
     when the 100 MW path is not being used by Applicants.

_________________

/5/  "2AB" refers to the change in HHI resulting from the merger of company a
     (with market share A) and Company b (with market share B).  This formula is
     derived from the HHI calculation as follows:
         Applicants' pre-merger HHI = A/2/ + B/2/
         Applicants' post-merger HHI = (A+B)/2/ = A/2/ + B/2/ + 2AB
     Thus, the change in HHI resulting from the merger equals 2AB.
<PAGE>

                                                                   Page 11 of 53

     transmission for integration purposes, etc. This analysis properly depicts
     the effects of the merger when the 100 MW path is not being used by
     Applicants.

/\   "2AB" refers to the change in HHI resulting from the merger of company a
     (with market share A) and Company b (with market share B). This formula is
     derived from the HHI calculation as follows: Applicants' pre-merger HHI =
     A2 + B2 Applicants' post-merger HHI = (A+B)2 = A2 + B2 + 2AB Thus, the
     change in HHI resulting from the merger equals 2AB.

     In addition, I examined a scenario that assumes the 100 MW path is used.
     In this analysis, Applicants' use of the 100 MW transmission reservation
     reduces available transmission capacity (ATC) on some interfaces; the
     analysis takes into consideration the loop flow impact of this
     interconnection.  Relying on data from Applicants (contained in Mr.
     Naumann's testimony), I adjusted ATCs to take into account the impacts of
     the planned interconnection and recalculated HHIs.

     Next, I took into account Applicants' provisional mitigation plan in order
     to confirm that it eliminates the screen failures in these analyses of
     Economic Capacity.  Finally, I performed sensitivities that a) assumed that
     full TTCs were available to interconnect markets and b) assumed zero
     transmission rates.  These are intended as limiting cases to show how the
     evolution of RTOs might maximize economic power flows over the existing
     grid and the effects of this expanded market on the extent to which
     geographically distant utilities would compete in common markets.

     These sensitivities support the robustness of my conclusions.

Q.   PLEASE DESCRIBE YOUR DELIVERED PRICE TEST ANALYSIS OF AVAILABLE ECONOMIC
     CAPACITY.

A.   I performed an analysis for the Available Economic Capacity measure similar
     to that described above for Economic Capacity.  The key difference between
     these two measures is that Available Economic Capacity considers only that
     capacity that remains after the utility meets its native load and
     contractual obligations.  In the pre-restructured market, this measure may
     have provided a useful measure of the capacity that can participate in
     wholesale power markets.  However, for reasons described later in my
     testimony, this measure is losing its usefulness and, at least in the case
     of this merger, an analysis of it requires speculative and potentially
     contentious assumptions concerning, inter alia, the pace of elimination of
     retail native load obligations for ComEd, PECO, and other utilities
     throughout the affected regions.  In order to satisfy the Commission's
     rules requiring that merger applicants perform an Available Economic
     Capacity analysis, I did such an analysis.  I based my analysis on 1998
     retail loads for Applicants and others, escalating
<PAGE>

                                                                   Page 12 of 53

     those loads based on projected growth in electric demands throughout the
     region. That is, I made no assumption about retail access. In general,
     although that analysis showed some scattered and non-systematic screen
     failures, I do not believe that they should be given any meaningful weight
     since predictions of the amount of Available Economic Capacity controlled
     by Applicants and other suppliers are neither reliable nor probative of
     future market conditions.

Organization of Testimony

Q.   HOW IS THE REMAINDER OF YOUR TESTIMONY ORGANIZED?

A.   In Section III, I outline the Applicants' business operations and the
     status of deregulation in the states of Illinois and Pennsylvania. Section
     IV describes the economic framework used in the analysis as set out in the
     Commission's Order No. 592.  A description of the methodology I used in
     conducting the analysis is included in Section V.  My analysis of the
     merger's impact on competition is included in Section VI.  Section VII
     contains my conclusions.

                     III.      DESCRIPTION OF THE PARTIES
                     ------------------------------------

Commonwealth Edison Company

Q.   PLEASE DESCRIBE COMED.

A    ComEd, a regulated electric utility, is the principal subsidiary of Unicom
     Corporation. ComEd is engaged principally in the production, purchase,
     transmission, distribution and sale of electricity.  Its service territory
     is in Northern Illinois, including the Chicago metropolitan area.

     ComEd has sold all of its fossil generation;/6/ ComEd's remaining
     generation assets consist of approximately 9,200 MW of nuclear generation.

- -----------------------
/6/  As is described in the Application, the sale of the State Line and Kincaid
     stations has been completed. The planned sale of the balance of ComEd's
     non-nuclear plant to Edison Mission Energy has been approved by the
     Commission in a different docket, and is expected to close in the near
     future.
<PAGE>

                                                                   Page 13 of 53

     Its Kincaid and State Line generating stations were sold to affiliates of
     Dominion Resources ("DRI") and the Southern Company ("Southern") in
     February 1998 and December 1997, respectively. Under the terms of the
     sales, ComEd entered into exclusive 15-year purchase power agreements for
     the output of the plants (1,598 MW).  In essence, these are tolling
     contracts.  ComEd provides the fuel for them and has the right to the
     output produced in return for fixed payments and the payment of variable
     O&M costs.

     In March 1999, ComEd entered into an agreement to sell the remainder of its
     fossil generation, totaling approximately 9300 MW, to Edison Mission Energy
     ("EME").  The sale is expected to be completed in December 1999.  As part
     of the sale, ComEd will enter into three power purchase agreements with
     terms that will extend for five years or less.  Mr. Naumann discusses these
     agreements in his testimony.

     In addition to the 300 MW power sale contract with PECO, it has 1,150 MW of
     long term firm sales contracts that will be in effect in 2001.  These are
     included in my analysis.  It also has long term firm purchase contracts,
     beyond the repurchase contracts detailed above, of 941 MW./7/

Q.   TO WHICH UTILITIES DOES COMED INTERCONNECT?

A.   ComEd is a member of the MAIN regional council.  It is directly
     interconnected to other utilities in MAIN (Illinois Power Company ("IP"),
     Ameren, Central Illinois Light Company ("CILCO") and Wisconsin Energy
     (WEP)); utilities to its east in ECAR (AEP and Northern Indiana Public
     Service Company ("NIPS")); and utilities to its west in the MAPP
     (MidAmerican Energy Company ("MIDAM") and Alliant).

     ComEd is an owner-member of the MISO.  On September 16, 1998, the
     Commission granted approval to form MISO.  As a member-owner, ComEd will
     turn over functional control of its transmission system when the MISO
     becomes operational (expected to be in June 2001).

- ---------------------

/7/  This does not include a 600 MW contract with Enron, signed in November
     1999. This contract is for peaking energy in summer months only. The
     contract must be nominated on a day-ahead basis and the contract price is
     the market price in the day-ahead market. Since ComEd can neither withhold
     the power from this contract, nor benefit with respect to it from higher
     prices, I do not count the contracted capacity as being under ComEd's
     control. The 941 MW of purchases used in my analysis includes 300 MW of
     purchases for which no contract exists as of mid-November, 1999.
<PAGE>

                                                                   Page 14 of 53

Q.   DOES COMED HAVE ANY TRANSMISSION DEPENDENT UTILITIES ("TDUS")?

A.   ComEd has three full requirements TDUs in its control area:  the Cities of
     Naperville, Batavia and St. Charles, Illinois.  Each of these TDUs has
     requirements contracts with termination dates ending May 31, 2007.

     ComEd has one partial requirements TDU, the City of Rochelle, Illinois.  In
     addition, there are three other TDUs who obtain their requirements from
     alternative suppliers:  the City of Geneva, Illinois (supplier is WEP); and
     the cities of Rock Falls and Winnetka, Illinois (supplier is the Illinois
     Municipal Electric Agency).

Q.   DOES UNICOM HAVE ANY UNREGULATED SUBSIDIARIES IN THE ENERGY BUSINESS?

A.   Yes.  Unicom Enterprises, Inc. is the holding company for various
     unregulated Unicom subsidiaries.  Unicom Active Energy Management Systems
     provides an integral line of energy monitoring solutions and related
     consulting services.  Unicom Distributed Energy provides distributed
     generation systems (through Turbo Generator Power Systems, a joint venture
     with Allied Signal), complete engineering and feasibility studies, flexible
     financing and leasing packages.  Unicom Energy Solutions provides single-
     source energy and operational solutions.  Unicom Energy, Inc. provides a
     single source for natural gas, electricity and related services.  Unicom
     Thermal Holdings, Inc. provides retail district energy systems and site
     specific thermal energy products.  Unicom Power Holdings, Inc. provides
     creative energy solutions that yield significant cost savings and reduced
     risks associated with the overall energy supply through a customized
     portfolio.  Finally, Midwest Mechanical is a mechanical service provider
     that designs, installs and services heating, ventilation and air
     conditioning (HVAC) systems for more than 1,600 commercial and industrial
     customers in the Chicago area.
<PAGE>

                                                                   Page 15 of 53

PECO Energy Company

Q.   PLEASE DESCRIBE PECO.

A.   PECO is an electric and gas utility serving electric customers at retail in
     the six-county Philadelphia, Pennsylvania area and serving retail natural
     gas customers in five suburban counties.  PECO owns approximately 9,500 MW
     of generation (not including generation purchased by AmerGen), including
     about 4,300 MW of nuclear generation./8/

     PECO is a member of the Pennsylvania-New Jersey-Maryland ("PJM")
     Interconnection, a power pool which integrates, through central dispatch,
     the generation and operations of its member companies.  PJM consists of
     over 130 members located in all or part of Pennsylvania, New Jersey,
     Maryland, Delaware, Virginia and the District of Columbia.  There is
     approximately 56,000 MW of pooled generating capacity within PJM.  PJM is
     directly interconnected to SERC (VP); ECAR (APS and FirstEnergy); and the
     New York ISO (directly with Niagara Mohawk Company ("NIMO"), New York State
     Electric & Gas Corporation ("NYSEG") and Consolidated Edison Company
     ("ConEd")).

     On March 31, 1997, the members of PJM converted its organization from an
     unincorporated association into a limited liability company.  In November
     1997, the Commission issued an order authorizing PJM to establish an
     independent system operator ("ISO") and an hourly energy market known as
     the PJM Power Exchange ("PJM PX").  PJM dispatches generation based on the
     economic merit order of the generating units.  On March 10, 1999, the
     Commission issued an order granting PJM utilities the authority to charge
     market-based prices for sales of energy and certain ancillary services into
     the PJM PX.

Q.   DOES PECO HAVE ANY FULL OR NEAR-FULL REQUIREMENTS WHOLESALE CUSTOMERS?

A.   PECO has contracts to supply the following full or near-full requirements
     customers:  Boroughs of Butler, Lavallette, Madison, Pemberton and Seaside
     Heights, New Jersey and Boroughs of Ephrata and Middletown, Pennsylvania.
<PAGE>

                                                                   Page 16 of 53

Q.   PLEASE DESCRIBE PECO'S GAS DISTRIBUTION OPERATIONS.

A.   PECO provides retail gas sales and transportation in a five county area
     surrounding Philadelphia.  PECO's retail natural gas sales and
     transportation activities are regulated by the Pennsylvania Public Utility
     Commission ("PaPUC").  PECO, through its subsidiary Horizon Energy Company,
     d/b/a Exelon Energy ("Exelon Energy"), is participating in pilot programs
     outside its gas service territory to market gas and other services to
     retail customers.  PECO's natural gas supply is acquired under contracts
     with suppliers with terms up to five years.  It has long-term firm
     transportation contracts to move its gas supply to the market area with
     Texas Eastern Transmission Corporation ("Texas Eastern") and
     Transcontinental Gas Pipe Line Corporation ("Transcontinental").  PECO also
     has acquired underground storage from Texas Eastern, Transcontinental,
     Equitrans, Inc. and CNG Transmission Corporation.

Q.   WHAT OTHER BUSINESS VENTURES DOES PECO HAVE?

A.   PECO is a competitive generation supplier offering a variety of unregulated
     energy and utility infrastructure services, including electric supply, to
     businesses and residential customers across Pennsylvania. PECO is a
     wholesale marketer of electricity nationally, and participates in joint
     ventures which provide telecommunication services in the Philadelphia
     metropolitan region.

     In 1997, PECO and British Energy, plc (Scotland) formed a 50-50 joint
     venture, AmerGen Energy Company, LLC ("AmerGen"), to acquire and operate
     nuclear generating stations in the United States.  British Energy owns and
     operates 15 nuclear plants in the United Kingdom.  To date, AmerGen has
     acquired or entered into letters of intent to acquire five nuclear
     generating stations totaling approximately 4,200 MW. In PJM, AmerGen
     acquired Three Mile Island (786 MW) and Oyster Creek (619 MW) from GPU; in
     New York, AmerGen acquired Nine Mile Point No. 1 (618 MW) from NIMO and a
     portion of Nine Mile Point No. 2 (674 MW) from NIMO and NYSEG; in Illinois,
     AmerGen acquired Clinton (930 MW) from IP; and in New England, AmerGen
     acquired

- --------------------------------------------------------------------------------
/8/  PECO recently bought half of Conectiv's share of the Peach Bottom nuclear
     plant, which PECO operates.
<PAGE>

                                                                   Page 17 of 53

     Vermont Yankee (540 MW) from the owners of the Vermont Yankee
     Nuclear Corporation.

     Each of AmerGen's asset acquisitions, with the exception of Clinton and
     Nine Mile Point, have purchase power agreements ("PPAs") with the sellers
     to buy back the full output from these units.  The termination dates for
     these PPAs range from December 31, 2001 (Three Mile Island) to 12 years
     after the closing of the agreement (Vermont Yankee).  PECO will market any
     capacity available from these units on behalf of AmerGen.  With respect to
     Nine Mile Point, the PPA covers 95 percent of the output.  With respect to
     Clinton, the PPA covers the re-purchase by IP of 75 percent of the plant's
     output through 2004.  PECO will market the remaining 25 percent share.

Deregulation in Pennsylvania and Illinois

Q.   PLEASE DESCRIBE THE STATUS OF ELECTRIC DEREGULATION IN PENNSYLVANIA.

A.   The Pennsylvania legislature passed the Electricity Generation, Customer
     Choice and Competition Act in December 1996, which mandated that electric
     utilities unbundle electric service into separate generation, transmission
     and distribution services with open retail competition for the supply of
     electricity phased-in between January 1, 1999 and January 1, 2000. Pilot
     programs began in 1997.

Q.   WHAT IS THE CURRENT STATUS OF DEREGULATION IN ILLINOIS?

A.   At the end of 1997, the Illinois General Assembly passed the Customer
     Choice Law as part of electric restructuring in the state.  Retail
     competition for large business customers (over 4 MW load) and for a
     percentage of non-residential customers began October 1, 1999.  By December
     31, 2000 retail choice will be available to all non-residential customers.
     Full retail competition (including residential customers) will be effective
     by May 1, 2002.
<PAGE>

                                                                   Page 18 of 53

Q.   ARE THERE ANY PRELIMINARY RESULTS IN ILLINOIS SINCE CUSTOMER CHOICE BECAME
     AVAILABLE TO BUSINESS CUSTOMERS?

A.   Yes, there are some very preliminary numbers.  ComEd reports that, as of
     October 15, 1999, out of 42,000 customers eligible for customer choice, 430
     of ComEd's business customers have selected alternative electric providers.
     Another 2,400 customers have requested usage and billing information,
     presumably to inform themselves about potential savings from selecting
     alternative suppliers.

                      IV.     FRAMEWORK FOR THE ANALYSIS
                      ----------------------------------

Q.   WHAT ARE THE GENERAL MARKET POWER ISSUES RAISED BY MERGER PROPOSALS?

A.   Market power analysis of a merger proposal examines whether the merger
     would cause a material increase in the merging firms' market power or a
     significant reduction in the competitiveness of relevant markets.  Market
     power is defined as the ability of a firm or group of firms to sustain
     profitably a significant increase in the price of their products above a
     competitive level.

     In merger analyses, the critical issue is the change in market
     competitiveness due to the merger. While the pre-merger competitiveness of
     markets may, as under the DOJ/FTC Guidelines, affect the amount of such
     change that is acceptable, the focus remains on the change in market
     competitiveness caused by the merger.

     This focus on the effects of the merger means that the merger analysis
     examines those business areas where the merging firms are competitors.  In
     most instances, the merger will not affect competition in markets in which
     the merging firms do not compete.  Analysis of the effects of a merger on
     market power in businesses in which the merging firms both participate is
     sometimes referred to as horizontal market power assessment.  In the
     proposed merger of ComEd and PECO, therefore, the focus is properly on
     those markets in which both firms are actual or potential competitors.  The
     analysis is intended to measure the adverse impact, if any, of the
     elimination of a competitor as a result of the combination.
<PAGE>

                                                                   Page 19 of 53

     Vertical market effects of the merger relate to the merging firms' ability
     and incentives to use their market position over a product or service to
     affect competition in a related business or market.  For example, vertical
     effects could result if the merger of two electric utilities created an
     opportunity and incentive to operate transmission in a manner that created
     market power for the generation activity of the merged company that did not
     exist previously. The Commission has identified market power as also
     arising from dominant control over potential generation sites or over fuels
     supplies and delivery systems.  These are issues that could undercut the
     presumption that long-run generation markets are competitive.

Q.   WHAT ARE THE MAIN ELEMENTS IN DEVELOPING AN ANALYSIS OF MARKET POWER?

A.   Understanding the competitive impact of a merger requires defining the
     relevant market (or markets) in which the merging firms participate.
     Participants in a relevant market include all suppliers and, in some
     instances potential suppliers, who can compete to supply the products
     produced by the merging parties and whose ability to do so diminishes the
     ability of the merging parties to increase prices.  Hence, determining the
     scope of a market is fundamentally an analysis of the potential for
     competitors to respond to an attempted price increase.  Typically, markets
     are defined in two dimensions:  geographic and product.  Thus, the relevant
     market is composed of companies that can supply a given product (or its
     close substitute) to customers in a given geographic area.

Q.   HOW HAS THE COMMISSION TYPICALLY EXAMINED PROPOSED MERGERS INVOLVING
     ELECTRIC UTILITIES?

A.   Historically, the Commission examined mergers by focusing on specific
     product markets and by using a "hub-and-spoke" screening test to evaluate
     whether a further examination of potential market power was warranted.
     With the issuance of Order No. 592 in December 1996, the Commission changed
     its analytic approach and adopted a "delivered price test." Appendix A (the
     "Competitive Analysis Screen") of Order No. 592 outlines a detailed
     analytic method that applicants are required to follow in their
     applications and that the Commission will use in screening the competitive
     impact of mergers.  If a proposed merger raises no market power concerns
     (i.e., passes the Appendix A screen),
<PAGE>

                                                                   Page 20 of 53

     the inquiry is generally complete. If a proposed merger raises potential
     market power concerns, applicants can propose mitigation measures at the
     time of application.

Q.   WHAT PRODUCTS HAS THE COMMISSION GENERALLY CONSIDERED?

A.   The Commission generally has defined the relevant product markets to be
     long-term capacity, short-term capacity ("Uncommitted Capacity") and non-
     firm energy ("Available Economic Capacity" and "Economic Capacity").  The
     Commission has determined that long-term capacity markets are presumed to
     be competitive, unless special factors exist that limit the ability of new
     generation to be sited or receive fuel.

     The Commission has considered competition in transmission services and has
     examined whether the combination of ownership of transmission facilities
     creates the opportunity or incentive for the merging parties to restrict
     access to transmission.

Q.   HOW HAS THE COMMISSION ANALYZED GEOGRAPHIC MARKETS?

A.   To examine geographic markets, the Commission traditionally has focused on
     the utilities that are directly interconnected to the applicant companies.
     This "destination market" approach was continued in Order No. 592.  Each
     utility that is directly interconnected to the applicants is considered a
     separate "destination market."  Additionally, the Commission has suggested
     that utilities who historically have been customers of applicants are also
     potential "destination markets."

     The supply alternatives to each destination market are defined using the
     "delivered price test," which identifies suppliers that can reach a
     destination market at a cost no more than 5 percent over the pre-merger
     market price.  The supply is considered economic if a supplier's generation
     can be delivered to a destination market, including delivery costs (which
     include transmission rates, transmission losses and ancillary services), at
     a cost that is within 105 percent of the destination market price.
     Physical transmission constraints also are taken into consideration in
     determining the potential supply to the destination market.  Thus, unlike
     the "hub-and-spoke" methodology, competing suppliers are no longer defined
     by bright lines.  Competing suppliers are defined as those who have
     capacity (energy) that is physically and economically deliverable to the
     destination
<PAGE>

                                                                   Page 21 of 53


     market. Their importance in the market (i.e., their market share) is
     determined by the amount of such capacity.

     This test is intended to be a conservative screen to determine whether
     further analysis of market power is necessary. If the Appendix A analysis
     shows that a company will not be able to exercise market power in its
     first-tier destination markets, it generally follows that the applicants
     will not have market power in more broadly defined and more geographically
     remote markets. The screen is the first step in determining whether there
     is a need for further investigation. If the screening test is not passed,
     leaving open the issue of whether the merger will create market power, the
     Commission invites applicants to propose mitigation remedies targeted to
     reduce potential anti-competitive effects to safe harbor levels. In the
     alternative, the Commission will undertake a proceeding to determine
     whether unmitigated market power concerns mean that the merger is contrary
     to the public interest.

Q.   WHAT FRAMEWORK DOES THE COMMISSION USE TO DETERMINE WHETHER A MERGER POSES
     POTENTIAL MARKET POWER CONCERNS?

A.   In Order No. 592, the Commission adopted the DOJ/FTC Guidelines for
     measuring market concentration levels by the HHI. To determine whether a
     proposed merger will have a significant anti-competitive impact, the DOJ
     and FTC consider the level of the HHI after the merger (the post-merger
     HHI) and the change in the HHI that results from the combination of the
     market shares of the merging entities. Markets with a post-merger HHI of
     less than 1000 are considered "unconcentrated." The DOJ and FTC generally
     consider mergers in such markets to have no anti-competitive impact.
     Markets with post-merger HHIs of 1000 to 1800 are considered "moderately
     concentrated." In those markets, mergers that result in an HHI change of
     100 points or fewer are considered unlikely to have anti-competitive
     effects. Finally, post-merger HHIs of more than 1800 are considered to
     indicate "highly concentrated" markets. The Guidelines suggest that in
     these markets, mergers that increase the HHI by 50 points or fewer are
     unlikely to have a significant anti-competitive impact, while mergers that
     increase the HHI by more than 100 points are considered likely to reduce
     market competitiveness.
<PAGE>

                                                                   Page 22 of 53

                       V.    DESCRIPTION OF METHODOLOGY
                       --------------------------------

Q.   PLEASE SUMMARIZE THE METHODOLOGY THAT YOU USED TO ANALYZE THE COMPETITIVE
     EFFECTS OF THE MERGER.

A.   I evaluated the competitive effects of the merger using the methodology
     described in Appendix A, as summarized above.  I used PHB Hagler Bailly's
     Competitive Analysis Screening model ("CASm"), which implements the
     delivered price test and other calculations required in Appendix A, to do
     the required analyses.  The source and methodology for the data required to
     conduct the delivered price test in CASm are described in Exhibit No. APP-
     302.  A technical description of CASm is provided in Exhibit No. APP-303.

Q.   WHAT DESTINATION MARKETS DID YOU ANALYZE?

A.   I examined 42 destination markets that could potentially be impacted by the
     merger./9/

     I included ComEd and its first-tier utilities:  AEP, NIPS, IP, Ameren,
     CILCO, MIDAM, Alliant-West, Alliant-East and WEP.

     I also included PECO's first-tier utilities (specifically, utilities first-
     tier to PJM):  FirstEnergy, APS, VP and the NYISO.  In analyzing PJM, I
     took into consideration the predominant west-to-east energy flow and
     defined markets by the three high-voltage interfaces within PJM:  West,
     Central and East./10/,/11/

     Finally, I included additional destination markets that represent
     historical customers of Applicants based on a review of 1997 and 1998 sales
     reported in the FERC Form 1:/12/

____________________

/9/   Exhibit No. APP-304 includes a list of utilities (and corresponsing
      abbreviations used in other exhibits), including destination markets.

/10/  The PJM regions and related transmission limits are discussed in the
      Commission's Order in Docket No. ER97-3729-000, issued March 10, 1999. 86
      FERC (P) 61,248.

/11/  Both the ECAR-to-PJM and SERC-to-PJM interconnections occur in Western PJM
      (APS's in the far West and VP's in the West). I examined four PJM
      destination markets: PJM West-Central-East (PJM_W+C+E), PJM Central-East
      (PJM_C+E), PJM East (PJM_East) and an overall PJM market (PJM_All).

/12/ I excluded certain categories of customers as destination markets. First, I
     excluded power marketers, for the obvious reason that they do not comprise
     control areas. Similarly, I excluded municipals, cooperatives and TDUs
     which do not comprise a control area; instead, utility control areas that
     are destination markets are proxies for the competitive alternatives faced
     by these customers. Additionally, I excluded utilities which,
<PAGE>

                                                                   Page 23 of 53

     Associated Electric Coop; Carolina Power & Light; Cinergy; City Water,
     Light and Power; Cleco; Dayton Power & Light; Hoosier Energy Rural Electric
     Coop; Duke; Duquesne; East Kentucky Power Coop; Entergy; LG&E Energy;
     Madison Gas & Electric; MECS; Missouri Public Service Co.; NEPOOL; Northern
     States Power; South Carolina Electric & Gas Co.; South Carolina Public
     Service Authority; Southern Company; Tennessee Valley Authority; Upper
     Peninsula Power; Western Resources; and Wisconsin Public Service Corp.

     These destination markets include potentially impacted markets in
     accordance with the Commission's guidance in Appendix A, defined to include
     each first tier utility to the Applicants as well as their historical
     trading partners. Included in these destination markets are the full range
     of "intermediate" markets, i.e., those control areas between ComEd and
     PECO.

Q.   DID YOU ANALYZE A DESTINATION MARKET FOR APPLICANTS' TDU CUSTOMERS?

A.   Yes.  The relevant PJM markets I analyzed are reasonable proxies for any of
     PECO's remaining TDU customers.  Similarly, the ComEd destination market is
     a reasonable proxy for the competitive alternatives available to its TDU
     customers.

Q.   WHAT TIME PERIODS DID YOU ANALYZE?

A.   For each destination market, I examined eleven time periods for both the
     Economic Capacity and Available Economic Capacity measures, selected to
     reflect a broad range of system conditions. I describe this in more detail
     in Exhibit No. APP-302. Broadly, I evaluated hourly load data to aggregate
     similar hours. I defined periods within three seasons (Summer, Winter and
     Shoulder) to reflect the differences in unit availability and transmission
     capacity as well as base flows on the network. Previously, I generally have
     considered nine time periods: three seasons times three periods (Peak, Off-
     Peak and Shoulder). In view of interest in market conditions when prices
     have "spiked" during

- --------------------------------------------------------------------------------

     while customers, were not likely to be receiving physical delivery of
     Applicants' generation; this category primarily includes utilities in the
     Western States Coordinating
<PAGE>

                                                                   Page 24 of 53

     high load hours in the summer, I expanded this to eleven time periods by
     expanding the number of summer (high-priced) time periods evaluated to
     reflect different summer conditions and ensure that I covered the range of
     plausible market conditions in each of the destination markets.

     The periods evaluated (and the designations used to refer to these periods
     in exhibits) are:

     SUMMER (June-July-August)

          Super Peak 1 (S_SP1):    Top 25 load hours
          Super Peak 2 (S_SP2):    Next 125 load hours
          Super Peak 3 (S_SP3):    Next 350 load hours
          Peak (S_P):              Remaining peak hours
          Off-peak (S_OP):         All off-peak hours

     WINTER (December-January-February)

          Super Peak (W_SP):       Top 150 load hours
          Peak (W_P):              Remaining peak hours
          Off-peak (W_OP):         All off-peak hours

     SHOULDER (March-April-May-September-October-November).

          Super Peak (SH-SP):      Top 150 load hours
          Peak (SH_P):             Remaining peak hours
          Off-peak (SH_OP):        All off-peak hours

Q.   WHAT "COMPETITIVE" PRICE LEVELS DID YOU ANALYZE?

A.   For each destination market, I evaluated conditions assuming destination
     market prices ranging from $15/MWh in the Winter and Shoulder Off-Peak
     periods (W_OP and SH_OP) to $100/MWh in the Summer Highest Peak period
     (S_SP1).  This broad range of prices, in combination with the time periods,
     should be reflective of a sufficient range of system conditions such that a
     full picture of the merger's effects is captured.



- --------------------------------------------------------------------------------

     Council and Florida Regional Coordinating Council. Finally, I excluded
     three customers whose purchases in 1997 and 1998 were de minimis (less than
     $100,000 for this purpose): Minnesota Power, Central and SouthWest and
     Oklahoma Gas & Electric.
<PAGE>

                                                                   Page 25 of 53

Q.   DID YOU TAKE SYSTEM LAMBDAS INTO CONSIDERATION IN CHOOSING THE PRICE LEVELS
     TO ANALYZE?

A.   Broadly yes.  As I discuss in Exhibit No. APP-302, I reviewed system lambda
     data for several markets and believe the data are (i) not necessarily
     reflective of competitive prices in those markets; and (ii) do not provide
     as comprehensive a range of system conditions as do my assumptions.  For
     example, a number of utilities report a constant system lambda on a year-
     round basis, while other utilities in the region show significant
     differences depending on season.  There are a number of well known
     limitations to using system lambdas as a basis for competitive prices:
     utilities do not necessarily apply the same methodology to calculate system
     lambdas, there are frequently reporting errors, and neighboring utilities
     can report varying system lambdas.  However, I did take the system lambda
     data into account in selecting the prices to analyze, particularly to
     identify the lower range of price to be analyzed.

     I also considered using market price data reported in industry trade
     publications such as Power Markets Week.  There are limitations with these
     data as well:  they represent a fairly limited number of trades in relevant
     regions; they are not necessarily consistent with all the underlying data
     used in the Appendix A analysis (e.g., in Appendix A transmission rates are
     assumed to be the maximum filed-rates, while the market prices would
     reflect actual transmission costs incurred); and there are far fewer
     pricing "hubs" for reported market data than there are destination markets.

     Ultimately, I concluded that a range of prices from $15 per MWh in off-peak
     periods to $100 in the summer super peak was sufficient to fully explore
     possible differences in expected competitive conditions throughout the
     year.  The $15 price is the lowest typical price that can be anticipated on
     a non-transitory basis.  While transactions data (and some occasional
     system lambda data) demonstrate that prices can sometimes exceed $100 per
     MWh, modeling higher prices would not change my results.  At $100 per MWh,
     essentially all of the capacity of all of the market participants in all of
     the relevant markets is economic (the incremental costs even of inefficient
     peaking units is less than $105/MWh), so the supply of economic energy
     would not be different at higher prices.
<PAGE>

                                                                   Page 26 of 53

Q.   PLEASE DESCRIBE THE BASIC MODEL ARCHITECTURE YOU USED IN ANALYZING THIS
     MERGER.

A.   Briefly, CASm is a linear programming model developed specifically to
     perform the calculations required in undertaking the delivered price test.
     The model includes each potential supplier as a distinct "node" or area
     that is connected via a transportation (or "pipes") representation of the
     transmission network.  Each link in the network has its own non-
     simultaneous limit and cost.  Potential suppliers are allowed to use all
     economically and physically feasible links or paths to reach the
     destination market.  In instances where more generation meets the economic
     facet of the delivered price test than can actually be delivered on the
     transmission network, scarce transmission capacity is allocated based on
     the relative amount of economic generation that each party controls at a
     constrained interface.

     I represented simultaneous imports into a destination market based on a
     "common limiting element" approach consistent with the Commission's
     approach outlined in FirstEnergy./13/

Q.   WHAT REPRESENTATIVE YEAR DID YOUR ANALYSIS COVER?

A.   Order No. 592 requires that the analysis be forward looking.  I intend my
     analysis to approximate conditions in 2001 as a representative near-term
     future year.  I used control area to control area limits (ATCs and TTCs)
     from current (i.e., third quarter 1999) OASIS postings to represent the
     transfer capacity between each area in the model.  These are the most
     recently available data.  (The analysis is conducted in $1999.)

     Where appropriate, I adjusted other relevant data to approximate 2001
     conditions.  As described in Exhibit No. APP-303, this includes load,
     generation costs and confirmed new construction.


________________

/13/ Ohio Edison, et al., 80 FERC (P) 61,039 at 61,107.
<PAGE>

                                                                   Page 27 of 53

Q.   DID YOU MAKE ANY CHANGES IN THE ATC DATA POSTED ON OASIS IN CONDUCTING THE
     DELIVERED PRICE TEST?

A.   Yes, but only with respect to imports into the ComEd market.  First, I
     adjusted ATCs between ComEd and its directly interconnected utilities to
     reflect the impact of the completion of pending transmission upgrades in
     the ComEd system, which are described in Mr. Naumann's testimony.  These
     transmission upgrades include the construction of two new 345 kV lines
     between ComEd's Lockport and Lombard transmission substations.  Second, I
     applied a simultaneous available import capability into the ComEd market of
     4,500 MW, based on an analysis conducted by ComEd also described in Mr.
     Naumann's testimony.

Q.   HOW DOES YOUR MODEL ACCOUNT FOR THE UNITS THAT COMED HAS DIVESTED TO
     SOUTHERN, DOMINION RESOURCES, AND EME?

A.   As discussed above, ComEd sold the units, but arranged for a buyback of the
     capacity of the State Line and Kincaid units, in Power Purchase Agreements
     that last 15 years.  My general methodology for dealing with long term
     power arrangements is to treat the capacity as belonging to the purchaser.
     I employed that methodology here, assuming that the entire output of the
     State Line and Kincaid units was available to ComEd when economic.

     The divestitures to EME employed a more complicated buyback arrangement, in
     which ComEd contracted for the capacity in decreasing amounts over time and
     retained options to purchase the uncontracted capacity to give it
     flexibility in meeting uncertain load obligations under its retail access
     program.  As described by Mr. Naumann, EME will have rights to market
     energy from the units if not used by ComEd.

     For purposes of my market screen analysis, I assumed that ComEd contracts
     for the full capacity of the units. This is a worst-case scenario that
     tends to maximize the appearance of concentration in the markets and
     maximize any market power problem relating to the merger.

     For purposes of my analysis, I treated ComEd's cost of each contract as the
     variable cost payment that ComEd must make when it nominates energy under
     the contract.  Hence,
<PAGE>

                                                                   Page 28 of 53

     the EME capacity is treated as controlled by ComEd whenever the variable
     payment is below 105 percent of the market price. At some price levels and
     for some contracts, my projected dispatch cost of the units is below
     ComEd's cost under the contract. Under these circumstances (a market price
     that is lower than ComEd's contract cost but above the dispatch cost of the
     units), ComEd would not nominate the output under the contracts and EME
     would be able to sell the output to other purchasers. In these limited
     circumstances, I treated the output of the units as controlled by EME.

Q.   ARE EXISTING TRANSACTIONS BETWEEN COMED AND PECO IMPORTANT IN YOUR ANALYSES
     OF THIS MERGER?

A.   Yes.  As discussed above, a prime concern in merger analysis is that the
     merger would reduce the number of competitors in a region, allowing the
     remaining competitors to raise prices above the level that would otherwise
     have existed.  Because all of ComEd's generation is at least three wheels
     away from PJM, which is a very robust market, there is little basis for
     concern that elimination of ComEd as a separate competitor in the PJM
     market will allow Applicants to exercise market power.  For similar
     reasons, PECO's Pennsylvania generation is competitively unimportant in
     Illinois.  However, as I have described above, the pre-merger 300 MW power
     sale from ComEd to PECO made PECO a competitor in that region./14/

Q.   PLEASE DESCRIBE THE 300 MW SALE FROM COMED TO PECO.

A.   PECO has a 10-year 300 MW power purchase contract with ComEd which began in
     1997.  The point of delivery for the power is the ComEd-AEP interconnect or
     the ComEd-CIPS (i.e., Ameren) interconnect./15/  ComEd has the right to
     curtail this transaction in the event it has a capacity emergency in
     accordance with its Emergency Load Conservation Procedure.  In 1999, the
     transaction was curtailed for only 26 hours.  At the option of PECO, ComEd
     can also re-purchase this energy from PECO, and has

__________________


/14/ Additionally, PECO's ownership interest in the Clinton facility, through
     its AmerGen affiliate, provides additional generation that PECO could have
     sold in the ComEd region as a separate competitor if there was no merger.
     PECO also participates, pre-and post-merger, in the midwestern markets to
     the extent that its other contracts and owned capacity provide it with
     deliverable economic capacity.

/15/ PECO informs me that it almost always takes delivery at the AEP
     interconnect.
<PAGE>

                                                                   Page 29 of 53

     done so./16/ While there is no long-term firm transmission service
     reservation associated with this transaction, PECO has been using non-firm
     transmission to move energy from this contract. Year-to-date (through
     September 1999), 43 percent of the energy from this transaction was
     delivered to PECO load in PJM. Over the 1997-99 period, 40 percent of the
     energy was delivered to PECO.

Q.  HOW DID YOU ANALYZE THIS CONTRACT?

A.   My analysis treats the 300 MW power contract between Applicants in a manner
     consistent with other long-term contracts analyzed, namely a transfer of
     control over generation (in this case 300 MW) from the seller (ComEd) to
     the buyer (PECO).

     This contract, however, is distinguishable from many typical utility long-
     term contracts in that the point of delivery is not in the purchasing
                                                     ---
     party's control area.  Both as a matter of practice and contract, PECO
     generally takes delivery of this energy in the AEP control area.  Two other
     factors distinguish this contract, namely ComEd's recall rights and the
     fact that it has historically re-purchased a portion of the energy from
     PECO.

     My general practice is to treat power for which control is transferred from
     the seller to the buyer as located at the contract point of delivery.  I
     deviated from this practice in the case of this contract, and assumed PECO
     controlled this generation in ComEd's control area.  This is conservative
     in that a larger overlap is assumed to exist between Applicants in the
     ComEd control area than would otherwise be determined if I treated the 300
     MW in either the AEP or Ameren control area, as specified by the contract.
     Indeed, treating the contract as giving PECO 300 MW in the ComEd market
     area, rather than the AEP area, is the direct cause of the only screen
     failures produced by my analysis./17/ The 300 MW of energy is then subject
     to allocation by limited transmission from ComEd into surrounding

_________________________

/16/ In January-September 1999, for example, ComEd accounted for only 1.6
     percent of PECO's sales of the 300 MW. In 1998, in contrast, ComEd
     accounted for 28 percent. The difference is primarily attributable to the
     return to service of ComEd nuclear capacity that did not operate for much
     of 1998.

/17/ Had I treated the contract as being located in the AEP service area, the
     300 MW would have had to compete with AEP's capacity (and other capacity
     that reaches the AEP control area) for available transmission from AEP to
     ComEd. As a result, it would have been so severely "squeezed" in the
     proration of available transmission capacity that it would not have caused
     a screen failure in the ComEd market.
<PAGE>

                                                                   Page 30 of 53

     destination markets./18/  Because PECO takes the energy on an round the
     clock basis, I assume ComEd supplies the 300 MW from its lowest-cost energy
     sources.

     As discussed above, Applicants are willing to sell contract rights to the
     300 MW to an unaffiliated third party if necessary to obtain merger
     approval.  If the contract rights are sold to a third party, control of the
     capacity is transferred to that party, and the capacity is no longer
     controlled by Applicants. I have performed further analyses assuming that
     the 300 MW have been sold to a third party. Those analyses show that the
     sale would eliminate any merger-related increases in the Appendix A screen
     for Economic Capacity.

Q.   HOW DID YOU ANALYZE AMERGEN'S OWNERSHIP OF THE CLINTON PLANT?

A.   As discussed above, PECO's subsidiary AmerGen has purchased the Clinton
     facility from IP, but has agreed to sell 75 percent of the output back to
     IP through 2004.  Consistent with my treatment of other power sale
     arrangements, I treated the 75 percent as belonging to IP.  I treated the
     remaining 25 percent of the plant (approximately 230 MW) as belonging to
     PECO in my analysis (even though PECO has only 50 percent ownership in
     AmerGen).  The effect of this assumption is to increase the market
     concentrations (relative to an assumption that PECO owns only 50 percent of
     AmerGen), and the merger-related changes in concentrations, in IP and other
     markets to the south and west of ComEd.  However, because the IP market is
     only moderately concentrated, the change in market concentration arising
     from the Clinton ownership is not problematic; in the other markets, the
     change in market concentration arising from the merger is not material. It
     is possible that some of the Clinton output could be sold into the ComEd
     market.  However, the transmission capacity between IP and ComEd (and, more
     generally, into ComEd) is limited, and I have treated Clinton identically
     to all other capacity, pro-rating the amount of that capacity that could be
     transferred to ComEd, consistent with my general methodology for allocating
     limited transmission capacity, described in Exhibit No. APP-302.  After the
     pro-rated allocation of capacity, some 30 to

___________________

/18/ One might speculate that this treatment is not conservative in the markets
     in-between Applicants (particularly the AEP destination market), but as I
     demonstrate later in my testimony and exhibits, Applicants' overlap in the
     AEP market is small.  Hence, an additional 300 MW controlled by PECO in the
     AEP market would not be consequential to the HHI screen.
<PAGE>

                                                                   Page 31 of 53

     63 MW from AmerGen's share of the Clinton unit enters the ComEd destination
     market, depending on the time period and market conditions. This pro-rated
     allocation of capacity has been factored into the Appendix A study results
     that I present.

Q.   WOULDN'T IT HAVE BEEN MORE CONSERVATIVE TO ASSUME THAT ALL OF AMERGEN'S
     SHARE OF CLINTON GETS INTO THE COMED MARKET?

A.   Yes.  However, while I have sought to make conservative assumptions, more
     likely to amplify than conceal the effects of the merger, "conservative"
     does not extend to "biased."  Simply to assume that AmerGen's share of
     Clinton is in the ComEd market, as an exception to an otherwise consistent
     allocation of scarce transmission, would be improper.  Any consistent means
     of transmission allocation that would have brought all of AmerGen's share
     of Clinton into the market would also have brought in all of Clinton that
     is not controlled by AmerGen.  Such a methodology also would have
     substituted other nearby and/or low cost generation (depending on the
     method used) for the generation that my proration method allowed into the
     ComEd market.  Among the losers for any method that brought in all of
     AmerGen's Clinton share almost certainly would be the share my method
     allocated to PECO's distant capacity in Pennsylvania.

     Moreover, any paradigm that gets all of Clinton into the market, such as
     allocating all transmission to the lowest cost suppliers, would mean that
     if Applicants were to artificially withhold their share of Clinton from the
     ComEd market, the transmission made available for re-allocation would go to
     other very low cost generation (e.g., the Callaway station or MidAmerican's
     share of the Quad Cities plant).  While such a substitution would change
     the HHI calculation, it would not actually change the supply curve of
     imports into the ComEd area.

Q.   PLEASE DESCRIBE THE 100 MW PATH RESERVATION BETWEEN COMED AND PECO.

A.   As discussed above and as described in the testimony of Mr. McDonald,
     Applicants are prepared to interconnect via a 100 MW firm transmission
     reservation from ComEd to the PJM border, if required to do so by the SEC.
<PAGE>

                                                                   Page 32 of 53

Q.   HOW DID YOU ANALYZE THIS INTERCONNECTION PLAN?

A.   Applicants will use the path when it is economic to do so.  When it is not
     used, it will be re-posted on OASIS by the party that controls the
     transmission and be made available to other parties.  I have modeled both
     states.  To model the effects of the merger when the path is being used, I
     assumed that, post-merger,  Applicants would supply 100 MW of energy to
     PECO from resources in the ComEd area during all hours./19/ This 100 MW
     flow assumption has the greatest adverse affect on PJM markets, since it
     assumes that Applicants' share of such markets is increased by the full
     amount of the interconnection in all hours. This analysis also takes into
     account the loop flow effects of the power transfer. It was not necessary
     to explicitly and separately model the effects of the merger when the path
     is not being used. When the path is not used, there is no change from the
     pre-merger case in how Applicants' systems are used or in the flows on the
     transmission network. Hence, the effects of the merger are limited to
     combining Applicants' pre-merger shares of each destination market; I
     calculated these using the pre-merger model runs. By modeling both states,
     I made the most conservative assessment possible: within ComEd, the most
     conservative assessment arises when the transmission does not occur as that
     would increase Applicants' post-merger share of the market within ComEd; to
     the east of ComEd, the most conservative assessment assumes that the
     transaction does occur, as that would reduce ATC in the region, reducing
     the ability of other competitors to serve those areas. Since 100 MW of
     power is assumed to be transferred from the midwest to eastern PJM, it
     doubly impacts Applicants' share of PJM markets by increasing their
     controlled deliverable economic capacity and reducing the transmission
     available to others.


- ----------------------

/19/ As discussed infra, when the path is not being used and is posted for
     reassignment, the post-merger case will look exactly like the pre-merger
     case, except that Applicants' shares are combined.  Hence, the analysis
     allows the merger to be evaluated under both feasible conditions with
     respect to the integration path: that it is being used and that it is not.
<PAGE>

                                                                   Page 33 of 53

                  VI.    IMPACT OF THE MERGER ON COMPETITION
                  ------------------------------------------

Q.   WHAT SPECIFIC ANALYSES DID YOU CONDUCT TO EVALUATE THE POTENTIAL EFFECTS
     ARISING FROM THE COMBINATION OF GENERATION ASSETS?

A.   Consistent with the guidance in the Merger Policy Statement, I analyzed
     Economic Capacity and Available Economic Capacity, focusing on the
     combination of Applicants' generation.  Given the status of restructuring
     in Pennsylvania and Illinois, and more generally, the Economic Capacity
     analysis is the only analysis relevant to this merger.  As discussed infra,
     the Available Economic Capacity analyses does not provide reliable and
     useful insight into future market conditions since the native load that
     distinguishes this analysis from the Economic Capacity analysis is changing
     at unpredictable rates and in the long run will be eliminated.

     I have not analyzed Total Capacity and Uncommitted Capacity, for two
     reasons.  First, these measures are not required explicitly by the Merger
     Policy Statement or the NOPR in Docket No. RM98-4-000.  Second, in this
     instance, Applicants are three wheels from one another, which, under the
     normal application of the Commission's "hub-and-spoke" analysis of Total
     and Uncommitted Capacity, would result in them not being in the same
     market.

Economic Capacity

Q.   WHAT DID YOUR ANALYSIS SHOW FOR ECONOMIC CAPACITY?

A.   The Economic Capacity analysis confirms that the Applicants' overlap in
     virtually all destination markets is sufficiently small that the HHI screen
     is passed readily.  The only exception to this conclusion is in the ComEd
     destination market.  In this market, the screen is failed in all time
     periods except for the highest super-peak period.  The screen is passed in
     this period because, during the highest load hours, ComEd has recalled the
     300 MW of capacity that is under contract to PECO pursuant to the terms of
     that contract.  In these highest load hours, PECO does not control the 300
     MW pre-merger and, hence, the merger does not reconsolidate the 300 MW with
     other ComEd-controlled capacity.  The only other market in which the HHI
     increases by more than 50 points is the Illinois Power
<PAGE>

                                                                   Page 34 of 53

     market, wherein AmerGen's 25 percent of the Clinton unit is located./20/ In
     this market, the HHI increase is between about 41 to 74 points, with the
     largest increase in the lower load periods. The Illinois Power market is at
     most moderately concentrated (HHI between 1,000 and 1,800). Hence, the
     screen value for the change in HHI is 100 and the screen is comfortably
     passed.

     Exhibit No. APP-305 shows that Applicants' market shares, pre- and post-
     merger, in the destination markets around and between them are not large
     and the overlap is small.  Outside of its home market, ComEd's largest
     share is in the Illinois Power market, with shares ranging from 9 to 14
     percent.  PECO's share of that market is about 2 percent in all time
     periods.  PECO's largest share is in the PJM-East market, ranging from 16
     to 19 percent; ComEd's share of that market is under one percent in all
     periods.  In intervening markets between PJM and ComEd, most of which are
     only moderately concentrated in most periods, each Applicant's share is
     well under 10 percent. The typical changes in HHI levels are 20 points or
     less./21/

Q.   PLEASE DESCRIBE THE RESULTS FOR THE COMED DESTINATION MARKET.

A.   Under the base case (i.e., when the 100 MW path is not used), PECO has a
     pre-merger share of 1.4 - 2 percent in most time periods.  In off-peak
     periods, its share rises to a maximum of 2.3 percent.  PECO's share is made
     up of four elements:  (1) the 300 MW of power purchased from ComEd and
     assumed to reside in ComEd's control area; (2) 30 to 63 MW of power from
     AmerGen's Clinton plant in Illinois Power's control area that is prorated
     into ComEd; and (3) between 0 and 51 MW of power from PECO generation in
     PJM that is economic and deliverable (after proration) into the ComEd
     market.

     ComEd has a 63 to 76 percent share of this destination market, consisting
     of currently owned generation and contract rights and about 500 MW of owned
     or contracted


- ----------------------------

/20/ There is one minor exception, for one time period in the CILCO market
     (winter off-peak), where the HHI change is 60 points in a moderately
     concentrated market (HHI of 1118).

/21/ The exception is the NIPS destination market, where ComEd has a share of up
     to 13 percent but PECO has a share of 1.5 percent or less. The HHI changes
     are 34 points or less in a moderately to highly concentrated market.
<PAGE>

                                                                   Page 35 of 53

     generation expected to be on-line by 2001./22/ Other local generation
     within ComEd's control area includes small amounts owned by ComEd TDUs and
     about 1,700 MW of merchant generation./23/ Imports from ECAR, MAIN and MAPP
     are approximately 4,500 MW, the simultaneous limit imposed into ComEd./24/

Q.   PLEASE SUMMARIZE THE HHI RESULTS FOR THE COMED DESTINATION MARKET.

A.   These are shown in the table below; as described above, these results
     reflect analyses assuming (1) no additional flows between PECO and ComEd
     and (2) the 100 MW firm transmission path.

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------
    ComEd Market                                        Pre-Merger                               Pre-Mitigation
                                                                                                   Post-Merger
- ----------------------------------------------------------------------------------------------------------------------------
                                                                                          No Firm      100 MW Transmission
                                                                                        Transmission      ComEd to PECO
                                                                                           Path
- ----------------------------------------------------------------------------------------------------------------------------

   Economic Capacity         Market          ComEd          PECO               Delta HHI      Merged              Delta
                             Price          Market         Market      HHI       (2AB)        Market     HHI       HHI
                            ($/MWh)         Share          Share                              Share
 ---------------------------------------------------------------------------------------------------------------------------
<S>                       <C>             <C>           <C>        <C>        <C>           <C>        <C>       <C>
Summer Super Peak             $100            75.7%         0.10%      5791         15          75.4%      5755       -37
- ----------------------------------------------------------------------------------------------------------------------------
Summer Super Peak               75            73.1%         1.40%      5419        205          74.1%      5562       142
- ----------------------------------------------------------------------------------------------------------------------------
Summer Super Peak               50            73.2%         1.40%      5429        205          74.2%      5572       143
- ----------------------------------------------------------------------------------------------------------------------------
Summer Peak                     30            63.8%         1.40%      4238        179          64.8%      4368       130
- ----------------------------------------------------------------------------------------------------------------------------
Summer Off-Peak                 20            71.0%         1.80%      5136        256          72.2%      5313       178
- ----------------------------------------------------------------------------------------------------------------------------
Winter Super Peak               25            65.9%         1.50%      4504        198          67.0%      4647       143
- ----------------------------------------------------------------------------------------------------------------------------
Winter Peak                     20            73.2%         1.80%      5407        264          74.5%      5602       194
- ----------------------------------------------------------------------------------------------------------------------------
Winter Off-Peak                 15            67.7%         2.00%      4657        271          69.2%      4861       204
- ----------------------------------------------------------------------------------------------------------------------------
Shoulder Super Peak             40            66.0%         1.40%      4453        185          67.1%      4587       134
- ----------------------------------------------------------------------------------------------------------------------------
Shoulder Peak                   25            63.4%         1.70%      4179        216          64.5%      4329       149
- ----------------------------------------------------------------------------------------------------------------------------
Shoulder Off-Peak               15            64.6%         2.30%      4254        297          66.3%      4478       224
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>


- -----------------------------

/22/ As noted earlier, approximately 300 MW of these purchases are assumed to
     come from a planned unit for which no contract exists.  This pre-supposes
     that between now and 2001, ComEd will contract for additional generation to
     meet potential load requirements.

/23/ I discuss the planned generation in ComEd's control area in Exhibit No.
     APP-302. As I describe there, all of these units are either under
     construction or have passed sufficient project, financing and regulatory
     hurdles such that an in-service date by 2001 is considered highly probable.

/24/ When the 100 MW transfer from ComEd to PECO is being modeled, ComEd's
     simultaneous import capability increases by 100 MW to 4,600 MW.
<PAGE>

                                                                   Page 36 of 53

Q.   DO THE HHI RESULTS FOR THE COMED MARKET ACCURATELY REFLECT THE POTENTIALLY
     ADVERSE IMPACT OF THE MERGER ON THE CURRENT WHOLESALE CUSTOMERS IN THE
     COMED AREA?

A.   This result is highly conservative in the way in which the PECO contract is
     modeled.  As discussed earlier in my testimony, the 300 MW contract is for
     delivery in AEP or Ameren.  Had I treated it in a manner that mirrors the
     contract, PECO as the owner of the contract would have been allocated only
     a prorated share of the available transmission back into ComEd.  The more
     conservative treatment that I used assumes that all of the 300 MW competes
     in the ComEd market without the cost or limits of the transmission system.
     This reflects the fact that, in selling the capacity back to ComEd, PECO
     can, and has, "booked out" the purchase against a sale back to ComEd.  This
     could not be done in selling the power to any party other than ComEd./25/
     Hence, my treatment of the contract materially overstates PECO's role as a
     seller to any wholesale purchaser in the ComEd control area other than
     ComEd itself.

     ComEd's current wholesale customers include TDUs with aggregate demand that
     is small relative to the amount of potentially available supply.  To the
     extent these TDUs are served under multi-year contracts (see Ms. Juracek's
     testimony), they are insulated from any potential increase in market price
     due to the hypothetically enhanced ability of Applicants to raise prices
     post-merger./26/ Also, to the extent such customers are under contract,
     their ability to access competing suppliers is only theoretical, not real.
     In any event, assuming that TDUs are free to shop for power, the
     competitive conditions that they face will be identical for the ComEd
     control area.


- --------------------------
/25/ While PECO could, in effect, book out purchases against other parties, it
     still would be required to take delivery of the energy at the AEP or Ameren
     border.  With ComEd, the energy never leaves the ComEd control area with a
     bookout.

/26/ Three of ComEd's six TDUs can have some of their requirements supplied
     competitively in 2000-2001.
<PAGE>

                                                                   Page 37 of 53

Q.   DO YOUR ECONOMIC CAPACITY RESULTS CHANGE SIGNIFICANTLY WHEN YOU ASSUME
     ADDITIONAL INTERCONNECTION BY A FIRM 100 MW WEST TO EAST TRANSMISSION PATH?

A.   No.  These results are shown in Exhibit No. APP-306.  There are two
     potential affects from the 100 MW path.  First, when the path is being
     utilized, Applicants' amount of capacity controlled in the ComEd market is
     decreased by 100 MW and their controlled capacity in the PECO system is
     increased by 100 MW.  Second, again during the times when the path is being
     utilized, there will be merger-related changes in power flows that can
     affect the transmission system in a way that either increases or decrease
     concentration in Applicants' markets or in other markets.

     The first of these effects reduces merger-related increases in
     concentration within the ComEd, market, the only market in which there are
     screen failures.  Since my overall analysis also considers the case where
     the path is not used, I do not rely on this path-related deconcentration in
     reaching my conclusions.  Use of the path increases the effect of the
     merger on PJM-East relative to the base case; however, the increase is
     slight and the maximum merger effect on the PJM-East market remains at
     under 32 points of HHI increase, far below the 100  point threshold for a
     moderately concentrated market.

     Loop flow effects arising from the use of the 100 MW path were analyzed by
     Applicants' engineering staff and are addressed in Mr. Naumann's testimony.
     I utilized his analytic results to determine the change in the non-firm
     ATCs that would result from the path utilization and the consequent affects
     on market concentration.  Specifically, and as he recommended in his
     testimony, I adjusted the path ATCs by the amount of the change in FCITCs
     that his load flow studies produced as a consequence of assuming the flow
     of 100 MW from ComEd to PJM-East.  As he describes, the loop flow effects
     moderately deconcentrate the ComEd market and have minor effects on
     transmission in between the ComEd and PJM-East markets.  In some
     intervening markets, a reduction in ATCs arising from the 100 MW path has a
     slight concentrating effect.  However, in no case does the integration path
     create a screen failure.  Quite simply, since the merger, without the 100
     MW transfer, has such a slight effect on intervening markets, the reduction
     in ATC available to others due to the assumed transfer of 100 MW does not
     cause any screen violations.
<PAGE>

                                                                   Page 38 of 53

Q.   IS THE MERGER LIKELY TO CAUSE ANY LARGER INCREASES IN POWER TRANSFERS THAN
     THE 100 MW THAT YOUR ANALYSIS EXAMINES?

A.   No, not appreciably.  Recall that PECO already has the right to take 300 MW
     of energy from ComEd in the AEP market area.  PECO's use and disposition of
     this energy has varied depending on market conditions.  For example, in
     1998 only 17.5 percent of energy taken under the contract was actually
     delivered to PJM and PECO whereas in 1999 (through September), 43 percent
     of it was delivered to PJM and PECO.  In the future, as in the past, the
     Applicants will dispatch energy from ComEd to PECO only when it is economic
     to do so.  The fact that ComEd has not found PECO (or PJM) to be its
     highest value market, and hence has made only small sales on its own
     account to PJM, coupled with the fact that PECO itself has sold little more
     than 100 MW of its 300 MW of ComEd energy into PJM (on average) suggests
     that the degree to which the merged company can expect to transfer energy
     from west to east will typically be in the range of around 100 MW, plus or
     minus.  In this context, it also is notable that the cost of transferring
     power will change only modestly on the basis of tariff changes arising from
     the new ISOs.  PECO already is a member of PJM.  ComEd is already directly
     connected to AEP and its sales to the east will not benefit from a
     reduction in pancaking once the MISO becomes operational.  Assuming that
     the Alliance RTO is formed and has a non-pancaked rate, transfers from
     ComEd to PJM would face one less wheeling charge (at least for power sent
     via AEP and Virginia Power or FirstEnergy), but so will other MISO members
     as well as power from AEP and the Michigan utilities.

Q.   PLEASE DESCRIBE HOW THE MITIGATION THAT APPLICANTS HAVE OFFERED AFFECTS THE
     HHI RESULTS FOR ECONOMIC CAPACITY IN THE COMED MARKET.

A.   As described in the Application, Applicants have stated their willingness
     to sell the 300 MW PECO contract that is the principal cause of the screen
     failure to a third party should the Commission deem it necessary.  This
     mitigation eliminates the screen violations in all time periods as shown
     below.
<PAGE>

                                                                   Page 39 of 53

<TABLE>
<CAPTION>

- ---------------------------------------------------------------------------------------------------------------------
    ComEd Market                                           No Firm Transmission Path       100 MW Transmission
                                                                                              ComEd to PECO
- ---------------------------------------------------------------------------------------------------------------------
                                                              Pre-            Post-          Pre-           Post-
                                                           Mitigation      Mitigation     Mitigation     Mitigation
- ---------------------------------------------------------------------------------------------------------------------

  Economic Capacity                Market        Pre-       Delta HHI      Delta HHI      Delta HHI      Delta HHI
                                   Price        Merger
                                  ($/MWh)        HHI
- ---------------------------------------------------------------------------------------------------------------------
<S>                            <C>           <C>          <C>            <C>            <C>            <C>
Summer Super Peak                   $100           5791           15             20            -37            -37
- ---------------------------------------------------------------------------------------------------------------------
Summer Super Peak                     75           5419          205             19            142            -36
- ---------------------------------------------------------------------------------------------------------------------
Summer Super Peak                     50           5429          205             19            143            -36
- ---------------------------------------------------------------------------------------------------------------------
Summer Peak                           30           4238          179             18            130            -31
- ---------------------------------------------------------------------------------------------------------------------
Summer Off-Peak                       20           5136          256             29            178            -41
- ---------------------------------------------------------------------------------------------------------------------
Winter Super Peak                     25           4504          198             21            143            -32
- ---------------------------------------------------------------------------------------------------------------------
Winter Peak                           20           5407          264             38            194            -31
- ---------------------------------------------------------------------------------------------------------------------
Winter Off-Peak                       15           4657          271             57            204            -8
- ---------------------------------------------------------------------------------------------------------------------
Shoulder Super Peak                   40           4453          185             18            134            -37
- ---------------------------------------------------------------------------------------------------------------------
Shoulder Peak                         25           4179          216             22            149            -38
- ---------------------------------------------------------------------------------------------------------------------
Shoulder Off-Peak                     15           4254          297             66            224             -2
- ---------------------------------------------------------------------------------------------------------------------
</TABLE>

     In the base case, the change in HHI falls to about 20 points in all but
     off-peak periods. In off-peak periods when the market price is assumed to
     be only $15 per MWh, the change in HHI is 57 and 66 points. This is above
     the level that is presumed to not create a market power issue in the Merger
     Guidelines, but below the level that is presumed to create a failure, a
     "gray area" in the Merger Policy Standards. Since this condition occurs
     only in the lowest priced period, during which there is substantial
     competing capacity,/27/ the "gray area" result does not signal a market
     power problem.

     The merger, with mitigation, slightly deconcentrates the ComEd destination
     market if the 100 MW transmission path is used. This result occurs because
     Applicants reduce controlled generation by 400 MW (sale of the contract
     plus the 100 MW transfer), and the market size increases slightly by 100 MW
     (the export of 100 MW from the ComEd control area allows an extra 100 MW of
     import capability). As noted previously, my conclusions concerning the
     effects of the merger on midwest markets do not rely on the


- ------------------------

/27/  Prices at the level that give rise to the "gray area" result typically
      occur only during overnight periods in off-peak seasons. During such
      hours, there is a great deal of inflexible plant, such as baseload coal,
      that is at or near minimum load. (Minimum load levels are typically 15 to
      25 percent of full load capability for fossil steam plant.) This minimum
      load amount is producing energy and, hence is "in the market" even if the
      variable cost of the units is below the market price, since running, even
      at a loss, is necessary if the plant is to be available during higher
      priced daytime periods. Moreover, plant producing at minimum load can
      quickly increase output if prices rise. Hence, any attempt to raise prices
      would attract very rapid and substantial competition.
<PAGE>

                                                                   Page 40 of 53

     deconcentrating effects of the power transfer. The effect of mitigation on
     all other markets is shown in Exhibit APP-307. Since there are no pre-
     mitigation failures in markets other than ComEd, there also are no failures
     post-mitigation.

Sensitivities

Q.   PLEASE DESCRIBE THE EFFECTS OF THE SENSITIVITY ANALYSES YOU UNDERTOOK.

A.   As I described earlier, I performed two sensitivity studies.  For purposes
     of these sensitivities, I analyzed only a subset of the destination
     markets, consisting of ComEd's control area and the PJM markets; historic
     overlapping markets in between ComEd and PECO; and control areas impacted
     by the 100 MW path.  I analyzed 15 such destination markets./28/

     In the first sensitivity study, I assumed that full TTCs, rather than ATCs,
     were available to interconnect markets.  See Exhibit No. APP-308.

     In the second sensitivity study, I assumed zero transmission rates, as a
     limiting case showing the effects of market enlargement on the competitive
     effects of the merger.  See Exhibit No. APP-309.

     My conclusions are further supported by these sensitivity analyses. While
     the absolute numbers reflected in these sensitivities differ slightly from
     those of my base case and 100 MW flow case, my conclusions remain robust.
     Indeed, in most cases, the merger causes still smaller increases in HHIs
     than in my main cases.  These cases were designed to investigate whether
     future changes in the tariff structure and reservation practices of RTOs
     that increase transmission capability and make distant suppliers, such as
     the Applicants, more closely competitive.  The fact that these
     sensitivities show no adverse effect means that my conclusions are likely
     to remain robust as market institutions change.


- --------------------

/28/ These include ComEd, four PJM markets, IP, NIPS, AEP, VP, APS, FirstEnergy,
     MECS, CPL, TVA and DLCO.
<PAGE>

                                                                   PAGE 41 OF 53

Available Economic Capacity

Q.   HAVE YOU ALSO ANALYZED THE EFFECTS OF THE MERGER ON AVAILABLE ECONOMIC
     CAPACITY?

A.   Yes.  However, I believe that this analysis is of at best limited value and
     should not be relied upon in assessing the future effects of the merger on
     competition.

Q.   WHY SHOULD THE AVAILABLE ECONOMIC CAPACITY ANALYSIS NOT BE RELIED UPON
     HERE?

A.   Order No. 592 indicates that the merger analysis is intended to be forward
     looking. Available Economic Capacity analysis differs from the Economic
     Capacity analysis solely in that native and requirements customer loads are
     deducted from the resources controlled by each supplier. Capacity required
     to meet native load is deducted from the resources available from each
     supplier on the assumption that only its higher cost remaining resources
     are available to sell into the market. As the Order recognizes, under
     conditions of full retail access, all capacity is in the market, in which
     case the Available Economic Capacity analysis becomes identical to the
     Economic Capacity.

     From a market power perspective, any valid information that the Available
     Economic Capacity analysis provides incrementally to the Economic Capacity
     analysis depends on at least two assumptions. First, the capacity that
     serves native load is not available to make sales in the market-priced
     wholesale market and its control by a supplier cannot affect the wholesale
     market. Second, the capacity that is sold to native load customers is
     insulated from any increase in prices in the competitive part of the
     market. Neither assumption is wholly true. Most importantly, if (as is the
     case with the Available Economic Capacity analysis) the competitive supply
     is treated as a residual after individual suppliers' native loads are met,
     the withholding of any capacity, whether "dedicated" to native load or not,
     nevertheless affects prices in the competitive market. Second, depending on
     the precise nature of state regulation (for example, whether there are long
     term rate freezes or frequent rate cases, whether there is a fuel and
     purchased power adjustment clause, whether margins on wholesale sales
     offset retail revenue
<PAGE>

                                                                   PAGE 42 OF 53

     requirements), the existence of native load may variously impede,
     contribute to or be neutral with respect to the possible exercise of market
     power in wholesale power markets.

     If these were the only problems with Available Economic Capacity as a
     measure of participation in wholesale markets, then it still might have
     considerable value if native load requirements and the amount of capacity
     controlled by suppliers could be predicted with the level of confidence
     that was feasible only a few years ago. However, the transition to retail
     access that is occurring throughout the country means that a forward
     looking analysis of Available Economic Capacity is necessarily fraught with
     assumptions and transitory in relevance. Moreover, a merger policy that
     relies on it will give perverse signals to utilities from the point of view
     of public policy. A utility that builds new merchant capacity, thereby
     increasing market supply, may find itself with an Available Economic
     Capacity "problem" in a market where little such capacity exists and any
     new supplies clearly are pro-competitive. Similarly, a utility whose
     policies create a rapid success of competing retail access providers may
     find that it has created an Available Economic Capacity problem for itself
     as a result. A merger policy that penalizes suppliers for such pro-
     competitive activities would be counter-productive.

Q.   WHY IS AN ANALYSIS OF AVAILABLE ECONOMIC CAPACITY SPECULATIVE?

A.   I, and other practitioners, have interpreted Order No. 592's definition of
     Available Economic Capacity as being net of load served under state
     regulation. As retail access reduces the amount of load retained by the
     historic provider as a regulated utility,/29/ the amount of that utility's
     Available Economic Capacity increases. Hence, any forward-looking analysis
     of Available Economic Capacity depends on a forecast of the pace of retail
     access for each supplier in the market, an inherently speculative
     undertaking.

     The amount and ownership of Available Economic Capacity depends also on the
     divestiture plans of utilities and the nature of take-back contracts and
     other contracts

___________________

/29/ It is not clear whether load served by an unregulated subsidiary of the
     formerly-load serving utility should be deducted. On the one hand, the load
     such an affiliate serves requires purchases from the market. Hence, in
     deciding whether an action to increase market prices is profitable, a
     generation owner would take such contractual responsibilities into account
     in much the same manner as its remaining native load responsibility.
     However, load served by an affiliate is not subject to state regulatory
     pricing rules.


<PAGE>

                                                                   PAGE 43 OF 53

     entered into by the buyer. Clearly, divestiture plans for the future are
     not knowable and, as recent experience shows, utilities can change their
     plans quickly. Even if the period being analyzed is relatively near into
     the future, so that the amount of divestiture can be projected with some
     confidence, the existence, control, and pricing provisions of associated
     contracts may not be known.

     Of course, any forecast contains elements of uncertainty. But in the case
     of Available Economic Capacity, which is a residual market after native
     load requirements are taken into account, small changes in assumptions
     about loads and the control of capacity can have quite magnified impacts on
     market shares and market concentration. Yet, the underlying supply and
     demand for power in the region is wholly unaffected by either the pace of
     retail access or the transfer of generation and contracts among parties.

Q.   WHY IS ANY ANALYSIS OF AVAILABLE ECONOMIC CAPACITY TRANSITORY IN ITS
     MEANING?

A.   Because the results of the analysis are so dependent on the balance between
     the pace of retail access and asset dispositions, any result, even if
     correct for a particular year, will be incorrect for the following year.
     PECO's retail access is well advanced. Other PJM utilities also are
     undergoing retail access. Some have sold significant generation with very
     short term take-back contracts. Some divested generation that initially is
     not subject to take-back contracts will be committed to long term sales.
     PECO's share of the PJM Available Economic Capacity "market", and the
     market HHI, will change substantially from year to year. This is far less
     true for Economic Capacity.

     ComEd has just begun its retail access. At this point in time, the amount
     of access that will occur is highly uncertain. Moreover, to preserve its
     ability to serve retained load, ComEd has retained various option rights to
     the plants it has divested to EME. The extent to which it will exercise
     those rights depends significantly on the pace of retail access. Both the
     amount of retained load and the amount of capacity that is deemed under
     ComEd's control will, therefore, change from year to year. Its Available
     Economic Capacity, being determined by the balance between the two, will
     change even more dramatically and unpredictably. Other utilities that are
     beginning, or will soon begin
<PAGE>

                                                                   PAGE 44 OF 53

     retail access in the region, will also experience substantial changes in
     their Available Economic Capacity.

Q.   THESE CAVEATS NOTWITHSTANDING, HAVE YOU PROVIDED AN AVAILABLE ECONOMIC
     CAPACITY ANALYSIS?

A.   Yes. The results of the analysis are shown in Exhibit No. APP-310 for both
     the base case and the case that assumes a 100 MW west-to-east
     interconnection path.

Q.   WHAT DID YOU ASSUME IS THE LEVEL OF RETAIL ACCESS IN YOUR ANALYSIS?

A.   I assumed that each utility retains its full, historic load responsibility.
     In a slightly different context,/30/ the Commission has indicated its
     distaste for hypothetical assumptions about the extent of retail access in
     markets where such access has begun. To avoid such hypothetical
     assumptions, I simply have assumed that retail access will not materially
     affect the amount that the various suppliers can make available to the
     wholesale market. In the midwestern markets that are most likely to be
     problematic based on the Economic Capacity analysis, retail access either
     has not yet begun or is just now beginning. Hence, the zero access
     assumption for suppliers to these markets likely is not far off the mark.

Q.   WHAT DOES THIS ANALYSIS SHOW IN TERMS OF THE EFFECTS OF THE MERGER?

A.   The base case analysis shows that, as was the case with Economic Capacity,
     the problem market is the ComEd market. For the 451 other markets-time
     periods analyzed, there are a total of 10 screen failures. No market has
     more than one failure. In the majority of cases, concentration in the
     market in which the failure occurs is at the low end of the moderately
     concentrated range (post-merger between 1,000 and 1,200) and the change in
     HHI barely exceeds 100 points.

_____________________

/30/ EME Homer City Generation, L.P., 86 FERC (P) 61,016 (1999).
<PAGE>

                                                                   Page 45 of 53

     In the analyses incorporating the 100 MW path there are a few more failures
     (a total of 20) and a somewhat different pattern in terms of geography and
     time periods. For example, there are a number of screen failures in SERC.
     In the 100 MW case, there also are a number of markets in which the HHI is
     reduced by significant amounts. In some SERC markets, remote from both
     Applicants, there are both screen failures and HHI reductions of comparable
     magnitudes in the same market in different time periods./31/

Q.   DOES THE SALE OF THE 300 MW CONTRACT TO A THIRD PARTY ELIMINATE THESE
     SCREEN FAILURES?

A.   The majority are eliminated, including most of the failures in the ComEd
     market. These results are contained in my workpapers.

Q.   WHAT DO YOU CONCLUDE FROM THIS ANALYSIS OF AVAILABLE ECONOMIC CAPACITY?

A.   There are a few, mostly marginal screen failures scattered around various
     markets with no systematic pattern, except in the ComEd market that is the
     focus of the mitigation that Applicants have offered. In view of the nature
     of the screen failures and the significant concerns that I have identified
     about performing or relying on the Available Economic Capacity analysis, I
     do not believe that these screen failures demonstrate any competitive harm
     arising from the merger./32/

Applicants' Lack of Control Over Withdrawable Capacity

Q.   IN YOUR SUMMARY, YOU INDICATED THAT APPLICANTS CONTROL DISPROPORTIONATELY
     SMALL SHARES OF CAPACITY THAT CAN BE

______________________

/31/ Some of these results illustrate the extent to which the Available Economic
     Capacity test can produce misleading results. For example, in the Duke
     market, one of the most heavily nuclear markets in the United States, PECO
     is one of only two suppliers, and has a share of over 90 percent in the
     shoulder off-peak period. This is because there is so little low cost
     capacity not required to meet native load of its owners (such load being
     assumed to be served by the lowest cost resources) that PECO's
     "uncommitted" resources from the Clinton nuclear plant and the 300 MW
     purchase from ComEd that I model with a zero price are about the only
     Available Economic Capacity that can economically reach the Duke market at
     a price near $15/MWh. However, it is obvious that a few hundred MW of such
     capacity does not determine the market price in the Duke control area
     (several hundred miles away) during off-peak periods.

/32/ Notably, all but three of the 20 screen failures in Available Economic
     Capacity are eliminated by the mitigation offered by Applicants, and, the
     other three failures occur in markets that are only moderately
     concentrated.
<PAGE>

                                                                   Page 46 of 53

     WITHHELD TO INCREASE PRICES AND THAT THE MERGER DOES NOT CONCENTRATE THE
     OWNERSHIP OF SUCH CAPACITY. WHY IS THIS RELEVANT TO THE ANALYSIS OF THIS
     MERGER?

A.   The only way in which a generator, or group of generators, can increase
     prices is by reducing the supply that is available at a given price. This
     "withholding" of capacity can be achieved either by simply not making the
     capacity available or by offering the capacity at a price higher than it
     would be offered at under competition.

     Capacity that is out of the market (has an incremental cost that is higher
     than the market price) cannot be effectively withheld, since such capacity
     is not relevant to price determination - it is not part of economic supply
     whether withheld or not. Capacity that has a cost that is well below the
     market price can, other things equal, be withheld. However, the lower the
     variable cost of producing energy from a given plant, the less likely it is
     that withholding capacity from that plant is profitable.

     This can be demonstrated by example. Suppose that a generator has 2,000 MW
     of economic capacity with a variable cost of $20 per MWh and that the
     competitive price is $25 per MWh. The contribution to fixed costs and
     profit is thus $5 times 2,000 MWh, or $10,000 per hour. Suppose also that
     by withholding 500 MW of capacity (or bidding it at a price of $28 per MWh
     or higher) it can drive the price to $28 per MWh. The contribution is now
     $8 times 1,500 or $12,000 and the action is profitable.

     Now suppose the same set of facts except that the variable cost of the
     plant is $10 per MWh. If bid competitively, the contribution is $15 times
     2,000 MWh or $30,000. Removing sufficient economic capacity to raise the
     market price to $28 per MWh (again, 500 MW in this example) results in a
     contribution of $18 times 1,500 MWh, or $27,000 and the action is
     unprofitable.

     As the example demonstrates, the profitability of withholding capacity
     depends on two factors: a) the profits lost on each MW withheld and b) the
     number (or proportion) of MW that must be withheld to achieve a given
     increase in price. Point a) means that deep baseload plant, which has
     higher contribution margins than plant with higher variable costs, is more
     difficult to withhold profitably. Point b) means that it is more difficult
     to withhold plant profitably when prices are such that the merit order is
     flat (as it is during
<PAGE>

                                                                   Page 47 of 53

     low and moderate load periods) compared to when the merit order is steep
     (high load periods when transmission may be constrained and when only high
     variable cost capacity competes to set market prices).

Q.   DO APPLICANTS CONTROL SIGNIFICANT AMOUNTS OF PLANT THAT IT IS LIKELY TO BE
     PROFITABLE TO WITHHOLD?

A.   Generally speaking, no. ComEd in particular controls little such plant as a
     result of the divestiture of its fossil units, The merger does not result
     in a problematic concentration of control over economically withdrawable
     plant.

Q.   WHAT ARE THE RELEVANT CHARACTERISTICS OF PLANT CONTROLLED BY COMED?

A.   ComEd controls its nuclear plants./33/ Since it has full dispatch rights
     for the Kincaid and State Line plants that it has divested, I assume that
     it also controls them. Mr. Naumann discusses ComEd's control, or lack
     thereof, over the balance of its previously owned fossil plant that is
     being sold to EME in his testimony. For purposes of my analysis, I
     concluded that since ComEd does not operate the divested plant, the amount
     that it can be said to control, in the sense of being able to withhold it
     from the market, is limited to, at most, the Kincaid and State Line
     stations and the portion of the capacity being sold to Edison Mission
     identified by Mr. Naumann in his testimony.

     Exhibit No. APP-311 shows the plants controlled by ComEd and by PECO,
     together with regional amounts of plants controlled by others. ComEd
     controls about 9,000 MW of nuclear plants (and the low-cost Kincaid and
     State Line plants) with a dispatch cost below $15 per MWh./34/ It controls
     no generation between $15 and $25 per MWh, and less than 500 MW of plant
     with a dispatch price between $25 and $30 per MWh./35/

________________________

/33/ I assume, for these purposes, that ComEd and PECO both control (and could
     withhold) their shares of jointly owned plant. In practice, the unilateral
     withholding of a share of a jointly owned plant, particularly a nuclear
     plant, may not be feasible.

/34/ All plant ratings and dispatch costs in the table are from the Appendix A
     analysis database. Plant ratings are summer values and are derated for
     forced outages. Variable costs include fuel and variable O&M.

/35/ The almost 500 MW of ComEd generation priced at $25 to $30/MWh in Exhibit
     No. APP-311 represents planned affiliated merchant generation and other
     purchases from planned units. This is a conservative estimate
<PAGE>

                                                                   Page 48 0f 53

     Both system lambda data and reported market price data from Power Markets
     Week indicate that off-peak prices in MAIN typically are about $15 per MWh.
     (See Exhibit No. APP-312.) Prices commonly are below $30 in most other
     hours except in peak hours in the summer and super-peak hours in shoulder
     months. Indeed, in the ComEd control area in 1998, system lambdas were
     above $30 in less than 300 hours (3 percent of the time). Thus, ComEd
     controls only about 1,500 MW (the Kincaid and State Line units) that is
     near-marginal in off-peak hours, 500 MWh of potential future generation
     that is near-marginal when prices are closer to $30 per MWh, and only a
     portion of the capacity sold to EME as near-marginal capacity in the summer
     super-peak hours when prices can rise rapidly in response to relatively
     small changes in load or capacity./36/

Q.   CAN YOU RELATE COMED'S CAPACITY IN THESE PRICE BANDS TO THE CAPACITY
     CONTROLLED BY OTHERS IN ITS AREA?

A.   Yes. If I define a market area composed of ComEd and its first tier
     interconnections, ComEd has a 17 percent share of the deep baseload
     capacity. This is the capacity that is least capable of being economically
     withheld. Its share of $20-30 capacity is 16 percent and its share of
     capacity above $30 is 13 percent.

Q.   ARE THERE ANY OTHER CHARACTERISTICS OF COMED'S CAPACITY THAT MAKE IT
     DIFFICULT TO WITHHOLD?

A.   Yes. Seventy percent of its controlled capacity is nuclear. As discussed by
     Mr. Naumann, nuclear plant has very long cycle times (i.e., slow rates for
     increasing and decreasing power levels), creating severe economic penalties
     for withholding generation. Moreover, nuclear plant is subject to close
     oversight by the NRC.



________________________________________________________________________________

     of ComEd's future generation/purchase additions for 2001. I am informed
     that, as of this date, only 62 or 63 MW of this generation is committed for
     2001.

/36/ In reviewing the material in Mr. Naumann's testimony, the Commission should
     bear in mind that because of operational issues, such as the need to
     maintain a margin of quick reaction reserves, the stated capacity of
     peakers materially overstates their ability to produce energy in normal
     conditions.
<PAGE>

                                                                   Page 49 of 53

Q.   DOES PECO ALSO HAVE CAPACITY THAT IS DISPROPORTIONATELY DEEP BASELOAD?

A.   Yes, albeit to a lesser degree. Almost half of PECO's capacity is nuclear.
     This, along with low-priced fossil and purchase contracts, constitutes 8
     percent of the capacity with dispatch prices below $15 per MWh in the
     region consisting of itself and its first tier interconnections. It has 2
     percent of the capacity in the $15-20 dispatch cost range, one percent of
     the capacity dispatched at between $20-25, and 5 percent of the capacity in
     excess of $30 per MWh.

Q.   YOU INDICATED THAT COMED WILL NOT CONTROL SIGNIFICANT AMOUNTS OF PLANT
     THAT, AS A HYPOTHETICAL MATTER, MIGHT PROFITABLY BE WITHHELD IN ORDER TO
     INCREASE PRICES. MIGHT IT NOT BE THE CASE THAT COMBINING THE COMED DEEP
     BASELOAD PLANT WITH PECO'S LARGER AMOUNTS OF CYCLING PLANT INCREASES PECO'S
     INCENTIVE TO INCREASE PRICES?

A.   That is a hypothetical possibility. However, because of the distance
     between PECO and ComEd, the withholding of PECO capacity could increase the
     value of ComEd generation only if the withholding affected prices over a
     very wide area. At a bare minimum, this area would have to encompass PJM,
     ECAR and MAIN. As can be computed from Exhibit No. APP-311, Applicants
     control only 9 percent of the capacity in this region and only 8 percent of
     the capacity with dispatch prices above $30 that is marginal or near-
     marginal at times conducive to price spikes. Applicants' market share is
     greatest in the $25-30 band, still only about 20 percent, and their share
     of economic capacity at such prices is in this market area is less than 10
     percent. Moreover, PECO's mid-merit capacity is on the eastern edge of this
     large region, whereas ComEd's capacity is on the western edge. If PECO were
     hypothetically to drive up prices in eastern PJM by withholding capacity,
     any transmission constrain between ComEd and PECO would disconnect the
     prices in the PECO and ComEd regions./37/

__________________________

/37/ Nodal prices in the PJM power exchange demonstrate this effect. When there
     is a constraint between PJM-East and other parts of PJM, prices in the east
     and prices for power in other regions (and for power imported from
<PAGE>

                                                                   Page 50 of 53

Q.   WHAT DO YOU CONCLUDE FROM THIS ASSESSMENT OF THE TYPES OF GENERATION
     CONTROLLED BY APPLICANTS?

A.   The merger does not materially increase concentration of control over the
     types of generation most likely to be withdrawn in order to increase
     prices. Hence, it does not increase Applicants' ability to increase prices.
     Because of the geographic distance between PECO's mid-merit generation and
     ComEd's generation, any hypothetical ability that PECO might have to
     increase prices in PJM-East would be unlikely to have a significant effect
     on prices received for output from the ComEd facilities in Illinois. Hence,
     the merger has little effect on the incentive to increase prices.

Other Potential Market Power Issues

Q.   ARE THERE ANY OTHER ISSUES THAT WOULD AFFECT COMPETITION IN THE RELEVANT
     MARKETS?

A.   As noted earlier, I have not formally analyzed competition in long-term
     markets which the Commission has found to be presumptively competitive
     (although I discuss entry in this section as well). The possible exceptions
     to this presumption arise from vertical issues -- control over
     transmission, sites or fuels supplies, that might block entry in the long
     term.

Q.   WHAT IS THE ISSUE CONCERNING AN APPLICANT'S CONTROL OVER ESSENTIAL FUELS OR
     DELIVERY SYSTEMS?

A.   In the context of long term capacity markets, the issue is whether  the
     merging parties can foreclose or impede the entry of competing generators.

Q.   DO THESE APPLICANTS HAVE THE ABILITY TO FRUSTRATE ENTRY DUE TO THEIR
     CONTROL OVER FUELS OR FUEL DELIVERY SYSTEMS?

A.   No. PECO Energy Distribution is an LDC covering a limited area in Eastern
     Pennsylvania. Its larger customers of the type that would include even
     small electric

________________________________________________________________________________

     the west of PJM) are disconnected. Any action taken to further increase
     prices in the east will have no effect on prices beyond the constraint.
<PAGE>

                                                                   Page 51 of 53

     generators are free to purchase their own gas supplies. PECO has offered
     transportation services to its larger commercial and industrial customers
     since 1985. Currently over 700 customers obtain their gas commodity from
     third party suppliers. Beginning in July 2000, PECO Energy will offer
     transportation services to all customers, including residential customers.

     PECO's LDC activity is easily bypassed by large customers.  While PECO
     Energy is permitted to discount its transportation rate to meet competitive
     pressures, there are a number of customers on PECO's system who have opted
     to bypass the utility completely and connect directly to an interstate gas
     pipeline (e.g., Sun Oil and Tosco).  Existing larger customers often use
     the threat of bypass to achieve reduced rates (e.g., Lukens Steel, USX, PQ
     Corporation and PECO's own Eddystone and Cromby generating stations) and
     PECO is currently in active negotiations with several other customers
     (e.g., the Merck IPP and Smith Kline Beecham.)  As noted earlier, PECO
     provides gas distribution service to only one electric generator, a 28 MW
     facility owned by Merck. Newly built facilities could readily avoid PECO's
     small service area or connect directly to an interstate pipeline.

Q.   ARE THERE ANY OTHER VERTICAL ISSUES OF CONCERN IN THIS MERGER?

A.   No.  This merger should raise no other vertical market power concerns.
     PECO has already turned the operational control of its transmission system
     over to a the PJM ISO.  ComEd has committed to join the MISO and to
     creating an independently owned and governed institution under MISO to
     which it will turn over its retained control area operator functions.
     Further, Commission Orders No. 888 and 889 ensure that transmission owners
     such as Applicants will not be able to foreclose access to any essential
     transmission facilities, including connecting new merchant plants to their
     grids.  Normally and in the absence of special circumstances, the
     Commission has found that ISO commitments are sufficient to extinguish
     vertical market power issues arising from control of transmission.  More
     specific reasons why Applicants cannot exercise vertical market power by
     control over transmission are discussed extensively by Mr. Naumann.
<PAGE>

                                                                   Page 52 of 53

Q.   DO APPLICANTS EXERCISE CONTROL OVER THE AVAILABLE GENERATION SITES?

A.   No.  I was unable to identify any special barriers to entry in this regard.

     The geographic areas served by these Applicants are relatively small and
     the geographic area that must be included in any market definition that
     contains both Applicants encompasses quite a large region and includes many
     control areas.  Entrants who could compete in areas potentially affected by
     this merger would not need to locate new facilities in Applicants' service
     areas or connect to Applicants' transmission systems.  In any event,
     Applicants' open access transmission, overseen by the Commission, and their
     ISO membership and commitments should moot any concerns in this regard.

Q.   EARLIER, YOU STATED THAT THE COMMISSION HAS FOUND LONG-TERM MARKETS TO BE
     PRESUMPTIVELY COMPETITIVE.  PLEASE ELABORATE.

A.   In Order No. 888, the Commission in referring to a decision in Entergy
     Services, Inc., noted that "after examining generation dominance in many
     different cases over the years, we have yet to find an instance of
     generation dominance in long-run bulk power markets."/38/ In the Merger
     NOPR, the Commission stated that "[a]s restructuring in the wholesale and
     retail electricity markets progresses, short-term markets appear to be
     growing in importance. The role of long-term capacity markets appears to be
     diminishing."/39/

Q.   IS THERE ANY EVIDENCE THAT THERE WILL BE ENTRY INTO THE MAIN, PJM AND IN-
     BETWEEN ECAR AND SERC MARKETS WITHIN THE NEXT FEW YEARS?

A.   Yes.  First, entry can be accomplished in far shorter periods of time than
     were required with the large coal and nuclear generation facilities that
     used to be the chosen technology. According to the Department of Energy,
     conventional and advanced combined cycle

________________________

/38/ Order No. 888 at 31,649 n.86 (citation omitted).
<PAGE>

                                                                   Page 53 of 53

     generating units have a lead time of three years, and combustion turbines
     (i.e., peaking capacity) have a lead time of only two years./40/ The Elwood
     and Rocky Road merchant plants were installed in less than two years on the
     ComEd system.

     There is substantial evidence that additional entry will occur.  I
     identified more than 50,000 MW of planned new generating capacity in the
     relevant portions of the Eastern Interconnection in the next few years./41/
     (See Exhibit No. APP-314.)  This includes about 3,500 MW in the ComEd
     control area.  The fact that much of this planned capacity is not yet in
     the construction phase demonstrates that the near term prospect of opening
     up competition in generation, a recent phenomenon, is a major spur to the
     development of new merchant capacity.

                               VII.  CONCLUSION
                               ----------------

Q.   PLEASE SUMMARIZE YOUR RECOMMENDATION.

A.   I recommend that the Commission determine that this merger will not have an
     adverse effect on competition in markets subject to its jurisdiction.

Q.   DOES THIS COMPLETE YOUR TESTIMONY?

A.   Yes.

________________________________________________________________________________

/39/ Merger NOPR, op. cit., at 20.

/40/ Assumptions to the Annual Energy Outlook 1999, Energy Information
     Administration, U.S. Department of Energy, December 1998, p. 59.

/41/ In my analyses, I included only about 20,000 MW of planned generating
     capacity, representing those units that are likely, given milestones
     reached to date.
<PAGE>

                                   EXHIBITS

Exhibit No. APP-301  Resume of William H. Hieronymus

- --------------------------------------------------------------------------------
Exhibit No. APP-302  Data and Methodology


- --------------------------------------------------------------------------------
Exhibit No. APP-303  Description of CASm Model

- --------------------------------------------------------------------------------
Exhibit No. APP-304  List of Utilities and Abbreviations

- --------------------------------------------------------------------------------
Exhibit No. APP-305  Economic Capacity (no additional interconnection)

- --------------------------------------------------------------------------------
Exhibit No. APP-306  Economic Capacity (100 MW West to East path)

- --------------------------------------------------------------------------------
Exhibit No. APP-307  Economic Capacity with Mitigation

- --------------------------------------------------------------------------------
Exhibit No. APP-308  Sensitivity:  TTC

- --------------------------------------------------------------------------------
Exhibit No. APP-309  Sensitivity:  No Transmission Costs

- --------------------------------------------------------------------------------
Exhibit No. APP-310  Available Economic Capacity

- --------------------------------------------------------------------------------
Exhibit No. APP-311  Regional Generating Plant Characteristics

- --------------------------------------------------------------------------------
Exhibit No. APP-312  Competitive Market Price Data

- --------------------------------------------------------------------------------
Exhibit No. APP-313  Planned Generating Capacity

<PAGE>

                                                                EXHIBIT 99-D-1.4


                           UNITED STATES OF AMERICA
                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION

                                        )
Commonwealth Edison Company             )         Docket No. EC00-______________
                                        )

                   APPLICATION OF COMMONWEALTH EDISON COMPANY
              FOR AUTHORIZATION TO TRANSFER JURISDICTIONAL ASSETS

     Pursuant to Section 203 of the Federal Power Act, 16 U.S.C. (S) 824b (1994)
(the "Act"), and Part 33 of the Regulations of the Federal Energy Regulatory
Commission ("FERC" or the "Commission"), 18 C.F.R. Part 33 (1999), Commonwealth
Edison Company ("ComEd") requests authorization to transfer certain discrete and
limited jurisdictional facilities (the "Transfer") as part of a restructuring
plan to separate ComEd's generation and power marketing businesses from its
transmission and distribution businesses.  The jurisdictional facilities
involved in the Transfer are the step-up transformers, generation tie-lines and
related facilities associated with various generating units that will be
transferred.

     In accordance with the restructuring plan, ComEd will transfer its nuclear
generating assets and will assign its power purchase agreements to an affiliated
generating and wholesale marketing company.  The Transfer and proposed
restructuring will have no effect on ComEd's rates, the service ComEd provides
its wholesale and retail customers, competition, or on federal and state
regulators' ability to regulate ComEd.  Consistent with authorization to
accomplish the Transfer, ComEd and its affiliates will file appropriate
affiliate sales and interconnection agreements at a future date with the
Commission under Section 205 of the Act.
<PAGE>

     Although the Commission has applied its Merger Policy Statement to similar
asset transfers in the past,/1/ the Transfer does not raise any issues under the
Policy Statement that should require lengthy or detailed review.  In particular:

 .    The Transfer will not raise any market power issues because it is strictly
     internal in nature and will not result in any change in market power
     concentration of ComEd and its affiliates, nor in the control of
     transmission facilities that could be used to manipulate the market.

 .    The Transfer will not have any effect on the rates paid by ComEd's
     wholesale and retail customers.

 .    The Transfer will not impair effective regulation of ComEd and its
     affiliates at either the federal or state level.

     ComEd's proposed Transfer and restructuring are similar to restructurings
the Commission already has authorized for other public utility systems providing
wholesale and retail electric service in the State of Illinois.  Central
                                                                 -------
Illinois Public Service Company, et al., Order Authorizing Disposition Of
- ---------------------------------------
Jurisdictional Facilities, 89 FERC (P) 62,125 (November 15, 1999); Illinois
                                                                   --------
Power Company, et al., Order Authorizing Disposition of Jurisdictional
- ---------------------
Facilities, 88 FERC (P) 62,229 (September 10, 1999).

I.   ComEd And The Transfer

     A.   ComEd is a corporation organized and existing under the laws of the
State of Illinois, with its principal office in Chicago, Illinois.  ComEd is a
majority-owned subsidiary (greater than 95%) of Unicom Corporation ("Unicom").
ComEd is engaged in generating, transmitting and distributing electric energy to
the public in northern Illinois and is a public utility under Section 201 of the
Act.  ComEd's public utility affiliates are Commonwealth Edison Company of
Indiana, Inc., and Unicom Power Marketing, Inc. ("UPM").

- --------------------

/1/  Inquiry Concerning the Commission's Merger Policy Under the Federal Power
     Act: Policy Statement, Order No. 592 III FERC Stats. & Regs. (P) 31,044
     (1996) (codified at 18 C.F.R. (S) 2.26) (hereinafter, the "Merger Policy
     Statement").

                                       2
<PAGE>

     Currently, ComEd owns 9,214 MW of generating capacity, all of which is
located at nuclear plants in Illinois.  Prior to this year, ComEd sold
approximately 1,500 MW of fossil-fueled generation to two separate unaffiliated
purchasers/2/; and on December 15, 1999, ComEd sold its remaining 9,772 MW of
non-nuclear generation to another unaffiliated purchaser, Edison Mission Energy,
Inc. ("Mission")./3/  In connection with the sale to Mission, ComEd has entered
into a series of power purchase agreements with Mission intended to maintain
ComEd's ability to reliably serve its load during the beginning years of
Illinois' transition to full retail access./4/ These agreements provide ComEd
with the right to dispatch and receive electric energy from the divested
generation through the summer of 2004.

     This Application reflects a restructuring plan with respect to ComEd's
remaining generation, all of which is nuclear and which is located at six
stations (LaSalle, Quad Cities, Dresden, Byron, Braidwood and Zion/2/). This
generation will be transferred by ComEd, directly or indirectly, to an
affiliated generating and wholesale marketing company. Commission

- -----------------

/2/  ComEd sold its 1,108 MW Kincaid coal-fired facilities to Kincaid
     Generation, L.L.C., an indirect subsidiary of Dominion Resources, Inc.
     Kincaid Generation, L.L.C., 78 FERC (P) 62,060 (1997). Commonwealth Edison
     --------------------------
     Company of Indiana, Inc. sold its 490 MW State Line coal-fired generating
     facilities to State Line Energy, L.L.C., an indirect subsidiary of The
     Southern Company. State Line Energy, L.L.C., 78 FERC (P) 62,037 (1997).
                       -------------------------
     ComEd has rights to capacity and energy from Kincaid and State Line
     pursuant to power purchase agreements that extend through 2013.

/3/  By an order issued on November 8, 1999, the Commission approved ComEd's
     disposition of jurisdictional assets associated with the generating units
     that were sold to Mission. Commonwealth Edison Co., et al., 89 FERC (P)
                                -------------------------------
     62,105 (1999). By an order issued on August 3, 1999, the Illinois Commerce
     Commission found that ComEd's sale of this generation to Mission "will not
     render ComEd unable to provide its tariffed services in a safe and reliable
     manner." Commonwealth Edison Co., ICC Docket No. 99-0273 and 99-0282,
              -----------------------
     Ordering (P) 5.

/4/  As discussed below, retail access began in Illinois on October 1, 1999.

/5/  The Zion Nuclear Station has been retired from service.  No facilities
     located at Zion that are jurisdictional are included in the Transfer.

                                       3
<PAGE>

authorization is required to transfer the step-up transformers, generation tie-
lines and related facilities at the stations. ComEd also will assign its power
purchase agreements, including those related to the Kincaid and State Line units
and the Mission divestiture identified above, to Genco. These transfers will
occur at or about the time Unicom's pending merger with PECO Energy Company
becomes effective. This merger, which is described below, was announced on
September 23, 1999.

     B.   ComEd serves approximately 3.4 million retail customers in Illinois.
The Illinois legislature has enacted a retail access program in Illinois.
Starting on October 1, 1999, a significant number of retail customers in the
state became eligible for direct access: (a) those with peak loads of four MW or
greater, (b) a percentage of commercial customers with ten or more locations
with peak load of 9.5 MW or greater, and (c) a percentage of other non-
residential customers. The balance of ComEd's non-residential customers will
become eligible for direct access by December 31, 2000, and all of its
residential customers by May 1, 2002. ComEd provides unbundled retail
transmission service in Illinois under the rates, terms and conditions of
ComEd's open-access transmission service tariff ("OATT") on file with the
Commission. The Commission has accepted changes to the OATT to implement retail
transmission access. Commonwealth Edison Co., 88 FERC (P) 61,296 (1999). As a
part of the Illinois retail access program, ComEd's retail rates are capped
through the end of 2004.

     C.   ComEd is a charter member of the Midwest Independent Transmission
System Operator, Inc. ("MISO"), an independent system operator established
pursuant to Commission orders in Docket No.   ER98-1438.  Midwest Independent
                                                          -------------------
Transmission System Operator, Inc., 84 FERC (P) 61,23l, order on
- ----------------------------------                      --------
reconsideration, 85 FERC (P) 61,250, order on reh'g, 85 FERC (P) 61,372 (l998).
                                     --------------
The MISO is expected to begin operation in mid-2001.  ComEd has committed to
transfer control of its transmission facilities to the MISO.  ComEd is known for
its

                                       4
<PAGE>

commitment to the success of the MISO and for endeavoring to improve the MISO so
that the Commission has no reservations concerning its effectiveness. ComEd has
contributed personnel to the MISO, and ComEd's parent company, Unicom, has
guaranteed $50 million in loans on behalf of the MISO.

     In conjunction with its commitment to the MISO, ComEd is actively and
aggressively promoting the development of an "ITC" (an independent transmission
company).  On December 13, 1999, ComEd and three other Midwest public utilities,
IES Utilities, Inc., Interstate Power Company and MidAmerican Energy Company
(which are unaffiliated with ComEd), filed a request for a declaratory order
with the Commission in Docket No. EL00-25-000.  The joint applicants seek an
order declaring that an ITC, coupled with oversight by the MISO, will satisfy
the minimum characteristics and functions of an authorized RTO.  These
characteristics and functions are set forth in Order No. 2000 dated December 20,
1999 in Docket No.  RM99-2-000. ComEd hopes that the declaratory order request
will induce more transmission owners in the Midwest (a) to voluntarily commit to
the separation of their transmission and generation assets, and (b) to support
efficient operation of the regional grid under MISO oversight.  The proposed ITC
would mitigate many of the concerns that have been raised regarding the MISO,
including concerns regarding market organization and congestion management in
the Midwest.  The ITC would be independent of any market participant and would
operate under MISO oversight.

     D.   On November 22, 1999, in Docket No.  EC00-26-000, ComEd and PECO
Energy Company ("PECO"), on their behalf and on behalf of their public utility
affiliates, tendered for filing an application pursuant to Section 203 of the
Act for an order approving the proposed merger which was announced in late
September of this year.  Upon consummation of the proposed merger, the companies
will form a registered public utility holding company system. ComEd and PECO
have requested that the Commission approve their application in time for the

                                       5
<PAGE>

merger to close by September 2000.  The merger application contains general
descriptions of (a) ComEd's proposed restructuring and (b) a similar proposed
restructuring by PECO, which on December 16, 1999 filed a separate application
in Docket No. EC00-38-000 for authorization to undertake its restructuring.  In
the merger application, ComEd and PECO further explain that these restructurings
will be implemented at or about the time the merger closes.  Unlike ComEd's
proposed restructuring, PECO's restructuring will occur independent of the
proposed merger of ComEd and PECO's systems./6/

     Since the respective ComEd and PECO restructurings are internal
reorganizations, they do not present the need for the in-depth review that the
merger of two independent companies may warrant. ComEd anticipates that
authorization to complete the proposed Transfer will be forthcoming, perhaps by
order issued under authority delegated to Commission Staff, in advance of
Commission action on the merger application.

II.  Genco

     As noted above, PECO is moving forward with a plan to transfer all of its
generating assets to a generating operating company.  PECO will implement its
plan irrespective of the proposed merger of PECO and ComEd into a new public
utility  holding company system, and PECO has tendered its own application with
the Commission for authorization under Section 203 of the Act (jurisdictional
assets are included in PECO's restructuring).

     About the same time the merger becomes effective, ComEd will effect the
proposed Transfer, whereby the jurisdictional assets identified in this
Application will be transferred, directly or indirectly, to the same generating
company being formed by PECO's restructuring

- -------------------

/6/  Assuming approval by the boards of directors of Unicom and ComEd and that
     all required regulatory authorizations are obtained, ComEd's restructuring
     will occur after ComEd's receipt of a favorable ruling from the Internal
     Revenue Service on the tax treatment of nuclear decommissioning funds
     associated with the nuclear assets that will be transferred.

                                       6
<PAGE>

plan, or a subsidiary of such generating company (hereafter, "Genco"). Genco
will own generation and an inventory of power purchase agreements and will
perform the wholesale power marketing function for the public utility holding
company system. In addition to selling power to unaffiliated purchasers at
market-based rates, Genco will provide power to ComEd in order for ComEd to meet
its ongoing wholesale and retail supply obligations. (Genco likewise will supply
power to PECO.) Until the Commission determines that the market for ancillary
services in the Midwest is competitive, ComEd, in its capacity as a transmission
provider, will purchase ancillary services from Genco at cost-based rates that
are in conformance with Allegheny Energy Supply Company and West Penn Power
                        ---------------------------------------------------
Company, 89 FERC (P) 61,258 (December 10, 1999) ("Allegheny Energy Supply")
- -------                                           -----------------------
(authorizing affiliated sale of ancillary services at cost-based rates to enable
transmission provider to meet its OATT obligations).

     Genco's sales to ComEd (and PECO) will be made under Commission-authorized
rate schedules, which will be consistent with the Commission's ratemaking
precedents and policies under Section 205 of the Act.  ComEd and its affiliates
will make the appropriate filings under Section 205 of the Act at a time closer
to the proposed effective date of the Transfer.  In the meanwhile, there will be
no interruption in ComEd's plans to transfer control of its transmission
facilities, preferably to an ITC under the overview of the MISO, or
alternatively to the MISO when it becomes effective if the ITC ComEd envisions
proves infeasible for reasons beyond ComEd's control.

III.  Information Required By Sections 33.2  And 33.3 Of The Commission's
      Regulations

      Exhibits B through F and Exhibit I are attached.  Also, a portion of
Exhibit G is attached. To the extent necessary, ComEd requests waiver of the
Commission's regulations to permit the Commission to accept Exhibits B through G
and Exhibit I as filed.  In addition, ComEd is not filing Exhibits A and H at
this time.  Because ComEd does not believe that the lack of these

                                       7
<PAGE>

exhibits will impair the Commission's ability to determine that the proposed
Transfer is consistent with the public interest, ComEd requests a waiver, to the
extent considered necessary, of the requirement to file these exhibits at this
time. ComEd, nevertheless, will supply these exhibits as they become available
if the Commission does not grant the requested waiver. Information required by
Section 33.2 is set out below. To the extent necessary, ComEd requests waiver of
the Commission's regulations to permit the Commission to accept the following
information as in compliance with the Commission's regulations.

     A.   Names And Addresses Of Principal Business Offices

     Commonwealth Edison Company
     10 South Dearborn Street, P.O. Box 767
     Chicago, IL 60690

     B.   Names And Addresses Of Persons Authorized To Receive Notices And
          Communications With Respect To The Application

- --------------------------------------------------------------------------------
     Rebecca J. Lauer, Esq                        Robert S. Waters, Esq.
     Peter J. Thornton, Esq.                      Jones, Day, Reavis & Pogue
     Commonwealth Edison Company                  51 Louisiana Avenue, N.W.
     125 South Clark Street                       Washington, D.C. 20001
     Room 1500                                    202-879-3687 - voice
     Chicago, Illinois  60603                     202-626-1700 - fax
     312-394-3517 - voice
     312-394-3950 - fax

- --------------------------------------------------------------------------------

     C.   Designation Of Territories Served, By Counties And States

     ComEd provides electric service in northern Illinois, in all or portions of
the following 25 counties:  Boone, Bureau, Carroll, Cook, DeKalb, DuPage, Ford,
Grundy, Henry, Jo Daviess, Kane, Kankakee, Kendall, LaSalle, Lake, Lee,
Livingston, Marshall, McHenry, Ogle, Stephenson, Whiteside, Will, Winnebago, and
Woodford.  ComEd also provides wholesale

                                       8
<PAGE>

service for the requirements of the following municipalities: Batavia,
Naperville, and St. Charles, Illinois; and Dowagiac, Michigan.

     D.   Description Of Facilities Owned Or Operated For Transmission Of
          Electric Energy Or The Sale Of Electric Energy At Wholesale In
          Interstate Commerce

     As of December 31, 1998, ComEd owned approximately 5,400 circuit miles of
high voltage lines that are 138 kV and above.  The applicable generating
facilities from which ComEd makes wholesale sales are described in a preceding
section of this Application.

     E.   Description Of Transaction And Statement As To Consideration

     The Transfer is described above.  The Transfer does not involve a sale or
disposition to an unaffiliated purchaser and therefore does not raise any issue
of consideration for the transaction.  The Transfer is voluntary.

     F.   Description Of Facilities Involved In The Transaction

     The jurisdictional facilities of ComEd are described herein.  See also
Exhibit I hereto.

     G.   Statement Of The Cost Of The Facilities Involved In The Transaction

     The original cost of the facilities involved in the transaction is
approximately $52,000.000.

     H.   Statement As To The Effect Of The Transaction Upon Any Contract For
          The Purchase, Sale, Or Disposition, Or Interchange Of Electric Energy

     The Transfer will not have a material effect on any contract for the
purchase, sale, or interchange of electric energy.

     I.   Statement As To Other Required Regulatory Approvals

     The Applicants must file a notice of transfer of assets with the Illinois
Commerce Commission.  The Nuclear Regulatory Commission must approve the
transfer of the operating licenses for ComEd's nuclear generating stations.  On
December 21, 1999, ComEd filed the

                                       9
<PAGE>

related filing requesting approval from the Nuclear Regulatory Commission
("NRC"). A copy of the application portion of that NRC filing is included herein
in Exhibit G.

     J.   Facts Showing That The Transfer Is Consistent With The Public Interest

     The facts relied upon to show that the proposed Transfer is consistent with
the public interest are set forth in this Application.  The Transfer is strictly
internal, will not affect competition in either the wholesale or retail markets,
will not have any effect on ComEd's ratepayers and will not affect federal or
state regulation.  With respect to ComEd's post-Transfer sale of ancillary
services under ComEd's OATT, see Section II above, citing Allegheny Energy
                                                          ----------------
Supply, supra.
- ------  -----

     K.   Brief Statement Of Franchises Held

     In the City of Chicago, ComEd operates under a nonexclusive franchise
ordinance effective until December 31, 2020.  Utility operations outside of the
City of Chicago are conducted in municipalities under nonexclusive franchises
and, where required, under certificates of convenience and necessity granted by
the ICC.  ComEd holds nonexclusive franchises and/or certificates of convenience
and necessity in 395 municipalities outside the City of Chicago.  The following
summarizes the expiration dates of ComEd's franchises:

          Franchise Expiration Period            Number of Municipalities
          ---------------------------            ------------------------
          1999-2006                                         2
          2007-2017                                        10
          2018-2028                                         3
          2029-2039                                         1
          2040 and subsequent years                       376
          No stated time limit                              3

     L.   Form Of Notice

     ComEd has included a form of notice, in both hard copy and on diskette,
suitable for publication in the Federal Register.

                                       10
<PAGE>

IV.  Conclusion

     For the reasons set forth herein, ComEd requests waiver of the Commission's
filing requirements as deemed necessary and the issuance of an order authorizing
the Transfer.

                                             Respectfully submitted,

                                             COMMONWEALTH EDISON COMPANY

                                             By:________________________________
                                                  Rebecca J. Lauer, Esq.
                                                  Peter J. Thornton, Esq.
                                                  Commonwealth Edison Company
                                                  125 South Clark Street
                                                  Chicago, IL 60603
                                                  312-394-3517 - voice
                                                  312-394-3950 - fax


                                             By:________________________________
                                                  Paul Ruxin, Esq.
                                                  Robert S. Waters, Esq.
                                                  Jones, Day, Reavis & Pogue
                                                  51 Louisiana Avenue, NW
                                                  Washington, DC 20001
                                                  202-879-3939 - voice
                                                  202-626-1700 - fax

Submitted:  December 22, 1999

                                       11

<PAGE>

                                                                Exhibit 99-D-1.5

                           UNITED STATES OF AMERICA
                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION

                                  )
PECO Energy Company               )           Docket No. EC00_______________
                                  )
PECO Energy Power Company         )
Susquehanna Power Company         )
                                  )

                      APPLICATION OF PECO ENERGY COMPANY
             AND ITS AFFILIATES AND SUBSIDIARIES FOR AUTHORIZATION
                 TO IMPLEMENT PLAN OF CORPORATE RESTRUCTURING


                               TABLE OF CONTENTS

<TABLE>
<S>                                                              <C>
I.      SUMMARY OF FILING AND REQUESTED ACTION.................   3
        A.     Purpose of Filing...............................   3
        B.     Requested Action................................   3

II.     INFORMATION ABOUT PECO ENERGY AND AFFILIATES...........   5
        A.     PECO Energy Company.............................   5
        B.     PECO Energy Ventures............................   8
        C.     AmerGen Energy Company, L.L.C. .................   8

III.    THE PROPOSED PECO ENERGY RESTRUCTURING PLAN............  10
        A.     Background......................................  10
        B.     Description of the Planned Restructuring........  11

IV.     REQUEST FOR APPROVAL OF CORPORATE REORGANIZATION.......  14
        A.     The Effect on Competition.......................  14
        B.     The Effect on Rates.............................  16
        C.     The Effect on Regulation........................  17
        D.     Public Interest Conclusion......................  18

V.      FILING REQUIREMENTS UNDER PART 33......................  18

VI.     LIST OF MATERIALS SUBMITTED............................  21

VII.    CONCLUSION.............................................  22

</TABLE>
<PAGE>

                            UNITED STATES OF AMERICA
                                   BEFORE THE
                      FEDERAL ENERGY REGULATORY COMMISSION

                                  )
PECO Energy Company               )       Docket No. EC00_______________
                                  )
PECO Energy Power Company         )
Susquehanna Power Company         )
                                  )

                       APPLICATION OF PECO ENERGY COMPANY
             AND ITS AFFILIATES AND SUBSIDIARIES FOR AUTHORIZATION
                  TO IMPLEMENT PLAN OF CORPORATE RESTRUCTURING

     Pursuant to Section 203 of the Federal Power Act, 16 U.S.C. (S) 824b, and
Part 33 of the Regulations of the Federal Energy Regulatory Commission ("FERC"
or the "Commission"), 18 C.F.R. Part 33, PECO Energy Company and its affiliates
and subsidiaries (collectively, "PECO Energy") request authorization to
implement a plan of corporate restructuring under which PECO Energy will
establish its generation and power marketing businesses, its transmission and
distribution businesses, and its unregulated businesses as separate subsidiaries
of a new holding company.  As part of the PECO Energy restructuring plan, PECO
Energy will transfer control over FERC-jurisdictional facilities to subsidiaries
of a newly-formed holding company.  PECO Energy requests Commission
authorization to effect such transfers.

     Also as part of the PECO Energy restructuring plan, PECO Energy Power
Company ("PECO Energy Power") and Susquehanna Power Company ("Susquehanna
Power"), both of which are public utility subsidiaries of PECO Energy, plan to
transfer control over FERC-jurisdictional facilities to one of the new holding
company's subsidiaries.  In the alternative, PECO Energy may transfer control
over PECO Energy and Susquehanna Power, in their entirety, to a new subsidiary
of the holding company.  PECO Energy Power and Susquehanna Power, or in the
alternative, PECO Energy, request authorization to effect these transfers of
control over FERC-jurisdictional facilities.
<PAGE>

     The PECO Energy restructuring plan will permit PECO Energy to better
compete in the increasingly competitive electric industry, but it will have no
negative effect on competition or on PECO Energy's rates, the service PECO
Energy provides its wholesale and retail customers, or on federal and state
regulators' ability to regulate PECO Energy's jurisdictional facilities and
activities. The Commission should find PECO Energy's proposed restructuring plan
to be consistent with the public interest and authorize it.

     On November 22, 1999, PECO Energy and Commonwealth Edison Company ("ComEd")
jointly applied to the Commission for authorization under Section 203 of the
Federal Power Act to complete the proposed merger of PECO Energy and Unicom
Corporation ("Unicom"), ComEd's corporate parent./1/  PECO Energy's
restructuring and its merger with Unicom are separate transactions.  Assuming
receipt of required regulatory approvals, PECO Energy expects that its proposed
restructuring will occur contemporaneously with its merger with ComEd, but the
restructuring is not conditioned on completion of the merger, and in the event
the merger is not completed, PECO Energy still will proceed with its
restructuring.  PECO Energy therefore requests that the instant dockets not be
consolidated with the merger filing in Docket No. EC00-26-000.

     PECO Energy plans to complete its restructuring by September 2000 and
requests timely FERC action in the instant dockets to permit such a schedule.
For purposes of this filing, PECO Energy refers to its anticipated transactional
closing date as the "Restructuring Closing Date."

- ----------------------
     1.   The PECO Energy and ComEd merger filing is pending in Docket No. EC00-
26-000.

                                       2
<PAGE>

I.   SUMMARY OF FILING AND REQUESTED ACTION

     A.  Purpose of Filing

     PECO Energy seeks authorization to implement the restructuring of the
existing PECO Energy into functionally distinct and legally separate
subsidiaries under a holding company structure. Under this proposed
restructuring, PECO Energy's business operations will be restructured into three
subsidiaries of a new holding company, which PECO Energy expects will be named
"Exelon Corporation" (hereinafter, "Exelon Corp."): (1) a distribution and
transmission company, which will retain the name "PECO Energy Company"; (2) a
generation and power marketing company, which as of yet is unnamed but which is
called "GenCo" for purposes of this application; and (3) an unregulated ventures
company, which also is yet unnamed but which is called "VenturesHoldCo" for
purposes of this application.  Under the PECO Energy restructuring plan, all the
generating facilities PECO Energy or its subsidiaries currently own or control
will be transferred to GenCo, including those that are part of FERC-licensed
hydroelectric projects.  The existing PECO Energy Company, which will emerge
from the restructuring with its name unchanged, will be the Exelon Corp.
transmission and distribution company subsidiary.

     B.  Requested Action

     PECO Energy and its affiliates respectfully request the Commission to
specifically authorize, pursuant to Section 203 of the Federal Power Act, the
following transfers of FERC-jurisdictional facilities:

     1.   PECO Energy requests the Commission to grant authorization to PECO
          Energy to implement a plan of corporate restructuring under which PECO
          Energy will form Exelon Corp. as a new holding company and separate
          its generation and power marketing businesses from its transmission
          and distribution businesses as GenCo and PECO Energy Company,
          respectively, which will exist as separate subsidiaries of Exelon
          Corp.

                                       3
<PAGE>

     2.   PECO Energy requests the Commission to grant authorization for PECO
          Energy to transfer to GenCo PECO Energy's existing wholesale power
          sales tariff, the service agreements thereunder, and certain other
          rate schedules currently on file with FERC./2/

     3.   PECO Energy requests the Commission to grant authorization for PECO
          Energy to transfer to GenCo certain limited transmission facilities.

     4.   PECO Energy Power and Susquehanna Power request the Commission to
          grant authorization to transfer to GenCo the FERC-jurisdictional
          facilities associated with the Conowingo Project, a FERC-licensed
          hydroelectric project comprising a dam, generating facilities, and
          transmission facilities (the "Conowingo Project"), which FERC-
          jurisdictional facilities include transmission facilities and a rate
          schedule on file with FERC./3/

     5.   In the alternative to the authorization requested in paragraph 4,
          above, PECO Energy requests the Commission to grant authorization for
          PECO Energy to transfer to GenCo control over PECO Energy Power and
          Susquehanna Power as subsidiaries of GenCo./4/

     6.   PECO Energy requests the Commission to grant authorization to transfer
          to GenCo certain transmission facilities associated with the Muddy Run
          Pumped Storage Project (the "Muddy Run Project")./5/



___________________________

     2.  GenCo will file an application with FERC under Section 205 of the
Federal Power Act prior to the Restructuring Closing Date for market-based rate
authority so that it may assume the PECO Energy tariff, service agreements, and
other rate schedules. PECO Energy Company will file a market-based rate
wholesale power sales tariff to replace the tariff transferred to GenCo.

     3.  PECO Energy Power and Susquehanna Power will make application in a
separate docket under Part 1 of the Federal Power Act for authorization to
transfer their Conowingo Project FERC licenses to GenCo.

/4/  PECO Energy requests alternative authorizations for the transfer of the
     FERC-jurisdictional facilities of PECO Energy Power and Susquehanna Power,
     in paragraph 4, and for the transfer of PECO Energy Power and Susquehanna
     Power in their entirety to GenCo, in paragraph 5, because their post-
     restructuring placement in the Exelon Corp. corporate structure currently
     is undecided.

     5.  PECO Energy will make application in a separate docket under Part 1 of
the Federal Power Act for authorization to transfer its Muddy Run Project FERC
license to GenCo.

                                       4
<PAGE>

     7.   Pursuant to Section 203 of the Federal Power Act, PECO Energy, on
          GenCo's behalf, requests the Commission to grant authorization for
          GenCo to lease to PECO Energy Company certain transmission facilities
          associated with the Conowingo Project and the Muddy Run Project.


 II. INFORMATION ABOUT PECO ENERGY AND AFFILIATES

     The following information is provided in detail in the testimony of
Kenneth G. Lawrence, President of PECO Energy Distribution, an unincorporated
division of PECO Energy, submitted with this Application as Exhibit KGL-1
(Lawrence) (the "Lawrence Testimony").

     A.  PECO Energy Company

     PECO Energy Company is a corporation organized under the laws of the
Commonwealth of Pennsylvania.  PECO Energy is a vertically-integrated public
utility that historically has provided regulated retail electric and gas
services to customers in franchised service territories in southeastern
Pennsylvania.  PECO Energy serves approximately 1.5 million electricity
customers and 400,000 natural gas customers.

     PECO Energy's retail activities are subject to regulation by the
Pennsylvania Public Utility Commission ("PaPUC").  Pursuant to the Electricity
Generation Customer Choice and Competition Act (the "Competition Act"), and as a
part of a PaPUC-approved settlement (the "PECO Energy Retail Restructuring
Settlement"), PECO Energy has implemented a retail access program under which
retail electric consumers are given the right to purchase their electric
generating supply requirements from any PaPUC-licensed generation supplier.
Under the program, PECO Energy is phasing-in full retail access over two years.
As of the date of this application, two-thirds of the retail loads in PECO
Energy's service territory are free to choose their electric generation
provider.  By January 2, 2000, all retail electric customers in PECO Energy's
territory will have that freedom.

                                       5
<PAGE>

     PECO Energy remains the provider of electric distribution services in its
service territory. As part of the restructuring of the Pennsylvania utility
market and the PECO Energy Retail Restructuring Settlement, retail electric
ratepayers received a rate decrease in 1999 and will receive another rate
decrease in 2000, PECO Energy's distribution charges are capped through June 30,
2005, and generation charges, including those associated with stranded
generation investment, are capped through 2010.

     In addition, the Commonwealth of Pennsylvania recently enacted legislation
under which all retail gas customers will also be entitled to purchase their gas
supply requirements from alternative suppliers.  Upon the implementation of the
legislation, PECO Energy will not hold any exclusive franchises to sell gas to
retail customers, although it expects it will serve as provider of last resort
to its existing retail gas customers.  PECO Energy will continue to provide
distribution services to all retail customers.

     PECO Energy owns transmission facilities located in the Pennsylvania-New
Jersey-Maryland control area ("PJM"), but PECO Energy has transferred control
over its transmission facilities to the PJM independent system operator (the
"PJM ISO").  The PJM ISO offers transmission service over those PECO Energy
transmission facilities and the transmission facilities of other PJM regional
transmission owners under the PJM Open Access Transmission Tariff on file with
FERC. Pennsylvania-New Jersey-Maryland Interconnection, et al., 81 FERC (P)
      --------------------------------------------------------
61,257 (1997).

     PECO Energy markets wholesale electric capacity and energy on a national
basis.  PECO Energy has a market-based rate wholesale power sales tariff on file
with FERC under which PECO Energy is authorized to make market-rate wholesale
sales of power.  PECO Energy Co., 74 FERC (P) 61,336 (1996).  PECO Energy's
                 ---------------
wholesale marketing organization -- the "Power Team," an unincorporated division
of PECO Energy -- is a leading supplier of wholesale electricity to

                                       6
<PAGE>

customers in the continental United States and Canada, marketing and trading
electric energy in wholesale markets and procuring wholesale electricity for
resale to PECO Energy's retail electric customers.

     PECO Energy owns generation assets that are operated and maintained by two
generation business organizations within PECO Energy, the Power Generation Group
("PGG") and PECO Nuclear.  Both PGG and PECO Nuclear are unincorporated
operating divisions of PECO Energy. PECO Energy owns approximately 9,200 MW of
generating capacity, all of it located in the PJM control area.  See Exhibit
                                                                 ---
KGL-3 (list of PECO Energy generating facilities).  On September 27, 1999, PECO
Energy entered into agreements with Atlantic City Electric Company and Delmarva
Power & Light Company to purchase half of those companies' shares in the Peach
Bottom Atomic Power Station, a generating facility in which PECO Energy already
owns a 42.49 percent interest./6/ PECO Energy's purchase of these Peach Bottom
interests will increase the size of its generating portfolio by approximately
164 MW.

     In addition to these roles, PECO Energy is the parent company of PECO
Energy Power and Susquehanna Power, which own the Conowingo Project, a
hydroelectric generating plant and associated facilities located on the
Susquehanna River near Conowingo, Maryland.  PECO Energy also owns Horizon
Energy Company d/b/a Exelon Energy ("Exelon Energy"), which is authorized to
sell wholesale electric capacity and energy at market-based rates/7/ but which
conducts business




_________________________

       6 .  On December 9, 1999, PECO Energy, Atlantic City Electric Company,
and Delmarva Power & Light Company jointly filed an application with FERC under
Section 203 of the Federal Power Act for authorization to complete the
transaction involving the Peach Bottom plant.

 /7/   Horizon Energy Co., 81 FERC (P) 61,368 (1997).
       ------------------

                                       7
<PAGE>

primarily as a retail power marketer./8/

     B.  PECO Energy Ventures

     PECO Energy owns or participates in numerous unregulated ventures,
including several businesses related to energy and energy-related services,
communications, and infrastructure services.

     As noted, PECO Energy owns Exelon Energy, which is licensed by the PaPUC as
a retail electric generation supplier and serves retail energy customers in PECO
Energy's service territory as well as in other parts of Pennsylvania.  Exelon
Energy's retail activities in Pennsylvania are subject to regulation by the
PaPUC.  In addition, Exelon Energy competes for retail customers in other states
that have implemented retail access.  Exelon Energy's retail activities in other
states generally are subject to regulation by the public utility bodies of those
states.

     PECO Energy has partnered with firms such as AT&T Corporation and Adelphia
Business Solutions, Inc., in ventures that provide local and long-distance
telephone service and wireless personal communications services in the
Philadelphia area.  Other unregulated subsidiaries of PECO Energy provide
network distribution infrastructure services, equipment leasing services, and
contracting services.

     C.  AmerGen Energy Company, L.L.C.

     PECO Energy owns a 50% interest in AmerGen Energy Company, L.L.C.
("AmerGen").  In 1997, PECO Energy, British Energy plc, and British Energy Inc.,
formed AmerGen, a Delaware limited liability company, to acquire and operate
power plants in the United States.  To date, AmerGen has entered into agreements
to purchase several nuclear generating facilities.


________________________

/8/  Exelon Energy's wholesale power sales tariff permits it to engage in
     wholesale balancing transactions in furtherance of its retail marketing
     activities.

                                       8
<PAGE>

     On October 15, 1998, AmerGen entered into an agreement with GPU Nuclear,
Inc., Jersey Central Power & Light Company, Metropolitan Edison Company, and
Pennsylvania Electric Company to purchase the Three Mile Island Unit 1 Nuclear
Generating Facility ("TMI-1"), located near Harrisburg, Pennsylvania.  In an
order issued April 2, 1999, FERC approved the sale of the jurisdictional
facilities associated with the TMI-1 transaction.  Jersey Central Power & Light
                                                   ----------------------------
Co., et al., 87 FERC (P) 61,014 (1999).  AmerGen expects to complete the TMI-1
- -----------
transaction in the near future upon satisfaction of the remaining conditions of
closing.

     AmerGen has entered into agreements with Niagara Mohawk Power Corporation
("Niagara Mohawk") to purchase Niagara Mohawk's ownership share in the Nine Mile
Point Unit 1 Nuclear Generating Facility, and with Niagara Mohawk and New York
State Electric & Gas Corporation ("NYSEG") to purchase Niagara Mohawk's and
NYSEG's ownership shares in the Nine Mile Point Unit 2 Nuclear Generating
Facility.  The Nine Mile Point facilities are located near Oswego, New York.  On
October 29, 1999, the Commission approved the sale of the jurisdictional
facilities associated with the Nine Mile Point transactions.  Niagara Mohawk
                                                              --------------
Power Corp., et al., 89 FERC (P) 61,124 (1999).  AmerGen expects to complete the
- -------------------
Nine Mile Point transactions upon the receipt of additional required regulatory
approvals and satisfaction of additional conditions of closing.

     On June 30, 1999, AmerGen executed an asset purchase agreement with
Illinois Power Company to purchase the Clinton Power Station, located near
Clinton, Illinois.  The Commission approved the sale in an order issued November
8, 1999.  Illinois Power Co. and AmerGen Energy Co., L.L.C., 89 FERC (P) 62,104
          -------------------------------------------------
(1999).  AmerGen completed its acquisition of Clinton on December 15, 1999.

                                       9
<PAGE>

      On October 15, 1999, AmerGen entered into an agreement with GPU Nuclear,
Inc. and Jersey Central Power & Light Company to purchase the Oyster Creek
Nuclear Generating Station, located in Lacey Township, New Jersey.  The closing
of this transaction is subject to various regulatory approvals, including FERC
approval under Section 203 of the Federal Power Act.  AmerGen expects to file an
application with FERC for Section 203 approval in the near future.

      Finally, on November 17, 1999, AmerGen entered into an agreement with
Vermont Yankee Nuclear Power Corporation to purchase the Vermont Yankee Nuclear
Power Station, located in Vernon, Vermont.  The closing of this transaction is
subject to various regulatory approvals, including FERC approval under Section
203 of the Federal Power Act.  AmerGen expects to file an application with FERC
for Section 203 approval in the near future.

 III. THE PROPOSED PECO ENERGY RESTRUCTURING PLAN

      A.  Background

      The PECO Energy restructuring plan is proposed in partial response to the
restructurings currently under way in the wholesale and retail sectors of the
electric and gas industries in Pennsylvania and elsewhere.  Each sector of the
electric utility market is becoming increasingly competitive and presents
greater market opportunities than ever existed before.  PECO Energy seeks to
restructure itself to adapt its electric business to these changing markets.
The PECO Energy restructuring plan will permit PECO Energy to better compete in
these markets and permit it to better serve its customers and its shareholders.
The PECO Energy restructuring plan, moreover, implements the transfer of
generation assets that PECO Energy contemplated in connection with its retail
restructuring initiatives.

                                       10
<PAGE>

     B.  Description of the Planned Restructuring

     As described more fully in the Lawrence Testimony, PECO Energy's business
operations currently are functionally separated into three parts: (1) the
regulated transmission and distribution function; (2) the generation function;
and (3) unregulated ventures.  In addition, PECO Energy has additional
subsidiaries which own or control certain FERC-jurisdictional facilities in
connection with hydroelectric plants.  PECO Energy's restructuring plan will,
for the most part, formalize this functional separation into separate legal
entities.  Organizational charts depicting PECO Energy's pre-restructuring and
post-restructuring organizational structures are appended to the Lawrence
Testimony as Exhibits KGL-2 and KGL-4, respectively.  For ease of reference,
copies of Exhibits KGL-2 and KGL-4 are provided immediately following the
verification page of this application.

     If authorized by FERC and PECO Energy's shareholders, the PECO Energy
restructuring plan will be implemented in a series of steps.  There now exists
as a subsidiary of PECO Energy a Pennsylvania corporation currently named
"Newholdco Corporation."  Newholdco, which after the completion of the
restructuring will carry the name "Exelon Corp." as the holding company parent
of the restructured PECO Energy companies, currently is a shell corporation that
owns no assets and is not a public utility under the Federal Power Act.  As the
first step of the PECO Energy restructuring plan, PECO Energy and Exelon Corp.
will engage in a share exchange in which Exelon Corp. will become the sole
holder of all the outstanding common stock of PECO Energy and all the existing
holders of PECO Energy common stock will become the common stock shareholders of
Exelon Corp./9/  The holders of PECO Energy preferred stock as of the
Restructuring Closing Date


     9.   Immediately following completion of this first step, assuming receipt
of all required regulatory and shareholder approvals required to complete the
merger with Unicom, Unicom will merge into Exelon Corp.  This step will complete
the merger.  In the event PECO Energy and Unicom are unable to complete their
merger, PECO Energy still will complete its restructuring.

                                       11
<PAGE>

will retain their preferred stock.

     Following completion of this initial step, PECO Energy will be a wholly-
owned subsidiary of Exelon Corp..  In the next steps of the PECO Energy
restructuring plan, specific assets held by PECO Energy will be transferred, by
operation of Pennsylvania law, to newly-formed subsidiaries of PECO Energy,
which in turn will be transferred to Exelon Corp., as follows

     .    PECO Energy's generating assets and operations will be transferred to
          GenCo.

     .    PECO Energy's market-based rate wholesale power sales tariff, FERC
          Electric Tariff Original Volume No. 1, together with the service
          agreements thereunder and certain other rate schedules on file with
          the Commission also will be transferred to GenCo so that GenCo can
          carry on PECO Energy's power marketing business. These tariffs,
          service agreements, and other rate schedules are identified in the
          schedules to the form of assumption agreement between PECO Energy
          Company and GenCo submitted as part of Exhibit H.

     .    PECO Energy's unregulated ventures businesses will be transferred to
          VenturesHoldCo.

     .    Certain of PECO Energy's administrative and support functions may be
          transferred to an unregulated services company, to be called "ServeCo"
          for purposes of this application.

     PECO Energy's transmission and distribution assets and operations will
remain with PECO Energy Company, with the exception of the generator step-up and
step-down transformers which will be transferred to GenCo along with their
associated generating facilities.

     Upon completion of these steps in the restructuring, PECO Energy will have
formally separated into individual business corporation subsidiaries of Exelon
Corp. the business functions that previously operated as separate unincorporated
business units of PECO Energy.  The existing PECO Energy will emerge from the
restructuring as "PECO Energy Company."  PECO Energy Company will continue to
own all of PECO Energy's transmission and distribution assets, and its

                                       12
<PAGE>

transmission facilities will remain under the operational control of the PJM ISO
in accordance with the PJM Open Access Transmission Tariff.  PECO Energy Company
also will remain regulated by the PaPUC as an electric distribution company and
will continue to fulfill its "provider of last resort" functions pursuant to the
Competition Act and the PaPUC regulations promulgated thereunder.

     PECO Energy's generation assets and operations will be transferred to
GenCo, but they will for the most part continue to function and operate as they
currently function and operate under PECO Energy's ownership.  GenCo will hold
the licenses required to operate those plants.  PECO Energy's power marketing
functions, which currently are pursued through the Power Team, also will be part
of GenCo.  In addition, PECO Energy Power and Susquehanna Power will transfer
all of the Conowingo Project's facilities to GenCo.  GenCo then will lease the
Conowingo Project's transmission facilities, except for generator step-up and
step-down transformers, to PECO Energy Company.  In the alternative, PECO Energy
will transfer to GenCo control over PECO Energy Power and Susquehanna Power.
Also, PECO Energy will transfer all of the Muddy Run Project facilities to
GenCo. GenCo then will lease the Muddy Run transmission facilities, except for
generator step-up and step-down transformers, back to PECO Energy Company.

     PECO Energy's unregulated ventures, including PECO Energy's unregulated
retail electric and gas marketing operations, which currently operate through
Exelon Energy, will continue to operate as unregulated businesses within the
Exelon Corp. corporate structure./10/




____________________________

     10.  The exact post-restructuring placement of VenturesHoldCo within the
Exelon Corp. corporate structure currently is undecided.

                                       13
<PAGE>

 IV. REQUEST FOR APPROVAL OF CORPORATE REORGANIZATION

     The Commission has held that corporate reorganizations such as the one
proposed by PECO Energy effect a transfer of ownership and control of
jurisdictional facilities by virtue of the transfer of ownership of those
facilities from existing shareholders to a newly-formed holding company, and
therefore they are subject to the Commission's jurisdiction under Section 203 of
the Federal Power Act.  See, e.g. Central Hudson Gas & Electric Corp., 84 FERC
                        --------- -----------------------------------
(P) 62,010 (1998); Boston Edison Co., 80 FERC (P) 61,274 (1997); Central Vermont
                   -----------------                             ---------------
Public Service Corp., 39 FERC (P) 61,295 (1987).  The Commission will approve
- --------------------
such a disposition in accordance with Section 203 if it concludes that the
transaction is consistent with the public interest.  See, e.g., Boston Edison
                                                     ---------  -------------
Co., 80 FERC (P) 61,274 (1997).  In analyzing the effect of the disposition on
- ---
the public interest, FERC will assess three distinct effects: (1) the effect on
competition; (2) the effect on rates; and (3) the effect on regulation. If the
proposed transaction is determined not to present market power concerns, to
adequately protect ratepayers, and not to impair federal and state regulation,
the transaction will be deemed to be consistent with the public interest.  See,
                                                                           ----
e.g., Duke Power Co., 79 FERC (P) 61,236 (1997).  As the following discussion
- ----  --------------
demonstrates, PECO Energy's proposed restructuring will have no negative effect
on the public interest.  To the contrary, it likely will have a beneficial
effect.

     A.  The Effect on Competition

     PECO Energy's proposed restructuring will have no negative effect on
competition and likely will have a beneficial effect.  The PECO Energy
restructuring plan will cause a general rearrangement of PECO Energy's corporate
structure, but its effect will be limited solely to business units that already
are owned or partly owned by PECO Energy, and so it will not combine any
entities that currently are, or in the future likely would be, competitors.
Accordingly, the PECO Energy proposal will not result in any assumption of
horizontal market power by Exelon Corp., PECO Energy Company, or GenCo.  The
PECO Energy proposal also will not result in Exelon Corp.,

                                       14
<PAGE>

PECO Energy Company, or GenCo gaining control over generation or transmission
assets or other inputs to production that PECO Energy currently does not
control, and thereby it will not result in Exelon Corp., PECO Energy Company, or
GenCo gaining vertical market power in the markets for generation and
transmission./11/

     The PECO Energy restructuring plan reflects the type of structural changes
that are becoming characteristic of the evolving competitive marketplace and
that are enhancing competition in the markets for wholesale power.  The PECO
Energy proposal properly aligns the company's generation and power marketing
businesses as part of one entity, the transmission and distribution business as
part of another, and competitive ventures as part of a third entity.  PECO
Energy believes that this alignment of interests as reflected in the corporate
overhaul will be beneficial to the competitive marketplace because it will allow
each entity to focus exclusively on its business objectives and goals.  For
instance, PECO Energy expects that GenCo will compete in the wholesale electric
marketplace and will be positioned to compete in emerging markets for retail
electric sales.  By providing a viable competitive alternative to the generation
resources of incumbent regulated utilities, GenCo's presence in retail markets
that have opened up to competition will further the creation of a robust
competitive marketplace at both the retail and wholesale levels.



_______________________

     11.  With respect to transmission, PECO Energy further notes that now and
in the future, neither the existing PECO Energy nor the post-restructuring PECO
Energy Company possesses or will possess transmission market power because
control over PECO-owned transmission facilities has been transferred to the PJM
ISO, which provides open access transmission service over PECO-owned facilities
under the PJM Open Access Transmission Tariff.

                                       15
<PAGE>

     B.  The Effect on Rates

     PECO Energy's restructuring proposal will have no effect on the rates and
charges that will be paid by PECO Energy Company's and GenCo's post-
restructuring customers.  Upon implementation of the PECO Energy restructuring
plan, PECO Energy Company and GenCo will transact under rate schedules that will
be subject to the jurisdiction, and the scrutiny, of the state and federal
regulators to which PECO Energy currently is subject.  PECO Energy does not
propose any changes to its retail or wholesale rates or PECO Energy Company's
retail rates or GenCo's wholesale rates as part of its proposal and does not
intend to change its current or future transmission revenue requirements under
the PJM Open Access Transmission Tariff as a result of this filing.  The PECO
Energy restructuring plan therefore will cause no change in PECO Energy's rates.

     PECO Energy does not have any wholesale requirements customers under cost-
of-service rates or other customers under variable-rate contracts to whom PECO
Energy Company or GenCo potentially could pass added costs and higher prices.
Moreover, Pennsylvania retail customers are fully protected from any potential
rate impacts of the restructuring by their freedom to purchase electric
generation services from PECO Energy's competitors and by a state-imposed rate
reduction and cap.  Under the PECO Energy Retail Restructuring Settlement, PECO
Energy is phasing-in full retail choice for generation supply for all of its
retail customers through January 2, 2000.  After that date, all of PECO Energy's
existing retail electric customers may choose to purchase electric generation
services from alternative electric generation suppliers.  The PECO Energy Retail
Restructuring Settlement requires PECO Energy to reduce its retail electric
rates during 1999 and 2000 by 8% and 6%, respectively, from the rates in
existence on December 31, 1996, and then caps the distribution portion of those
rates until June 30, 2005, and the generation portion of those rates until
December 31, 2010.  PECO Energy's retail rates do not have an energy cost
adjustment

                                       16
<PAGE>

component, and PECO Energy's wholesale customers all take service under
contracts that do not have adjustment factors that otherwise would permit PECO
Energy Company to pass through to its customers any costs that it potentially
will incur as a result of its restructuring. PECO Energy Company's customers
thereby are protected from any adverse rate impacts from the restructuring.

     C.  The Effect on Regulation

     The PECO Energy restructuring plan will not diminish in any way the ability
of state regulators or FERC to assert their regulatory jurisdiction over Exelon
Corp. and its subsidiaries. Following reorganization, PECO Energy Company will
remain subject to federal and state regulation in the same manner, and to the
same extent, as PECO Energy currently is subject to regulation. PECO Energy
Company will continue to be subject to all of the Commission's regulatory
oversight pertaining to transmission and wholesale power contracts, including
the Standards of Conduct promulgated pursuant to Order No. 889.  GenCo will
remain subject to FERC regulation with respect to all wholesale power
transactions carried out by itself and its subsidiaries.  GenCo will be subject
to regulation by the PaPUC to the extent it is engaged in the business of an
Electric Generation Supplier, in which event it will be regulated as such.
Further, GenCo's relationship with both PECO Energy Company and any other
affiliate that provides retail electric generating services in Pennsylvania will
be subject to a state-imposed "Code of Conduct" until the expiration of the
competitive transition charge period, which Code of Conduct creates certain
obligations on PECO Energy Company and its affiliated electric generation
suppliers.  GenCo also will remain subject to regulation pursuant to PUHCA.

                                       17
<PAGE>

     D.  Public Interest Conclusion

     Because the PECO Energy restructuring plan will have no adverse effect on
competition, rates, or regulation, the Commission should find the plan
consistent with the public interest and authorize it.

 V.  FILING REQUIREMENTS UNDER PART 33

     PECO Energy submits the following information pursuant to Part 33 of the
Commission's regulations, 18 CFR Part 33:

     A.   Exact Name and Address of the Principal Business Office of Applicant's
          Principal Business Office:

               PECO Energy Company
               2301 Market Street
               Philadelphia, Pennsylvania  19101

     B.   Name and Address of the Person Authorized to Receive Notices and
          Communications with Respect to the Application:

               Paul R. Bonney                      Floyd L. Norton, IV
               Vilna Waldron Gaston                Michael C. Griffen
               PECO Energy Company                 Morgan, Lewis & Bockius LLP
               2301 Market Street                  1800 M Street, N.W.
               Philadelphia, Pennsylvania  19101   Washington, D.C. 20036-586

     C.   Designation of the Territories Served by Applicant, by Counties and
          States:

          PECO provides retail electric and natural gas service in Pennsylvania
          in all or portions of the following counties: Bucks, Lancaster,
          Montgomery, Chester, York, and Delaware.  PECO also serves electric
          customers in the City of Philadelphia.

                                       18
<PAGE>

     D.   General Statement Briefly Describing the Facilities Owned or Operated
          for Transmission of Electric Energy in Interstate Commerce or the Sale
          of Electric Energy at Wholesale in Interstate Commerce:

          As of December 31, 1998, PECO Energy owned approximately 1,121 circuit
          miles of high voltage lines that are controlled by PJM.  See Section
                                                                   ---
          II.A of this application and Exhibit KGL-3 to the Lawrence Testimony
          for a description of PECO Energy's generation facilities.

     E.   Whether the Application Is for Disposition of Facilities by Sale,
          Lease, or Otherwise, a Merger or Consolidation of Facilities, or for
          Purchase or Acquisition of Securities of a Public Utility; Also, a
          Description of the Consideration, If Any, and the Method of Arriving
          at the Amount Thereof:

          As described hereinabove, the proposed dispositions at issue in this
          application are necessary to implement the PECO Energy restructuring
          plan.  Asset transfers made pursuant to the PECO Energy restructuring
          plan will be made either via dividend or in exchange for stock.

     F.   A Statement of Facilities to Be Disposed Of, Consolidated, or Merged,
          Giving a Description of Their Present Use and of Their Proposed Use
          after Disposition, Consolidation, or Merger. State Whether the
          Proposed Disposition of Facilities or Plan for Consolidation or Merger
          Includes All the Operating Facilities of the Parties to the
          Transaction:

               See Section III.B.

     G.   A Statement (In the Form Prescribed by the Commission's Uniform System
          of Accounts for Public Utilities and Licensees) of the Cost of the
          Facilities Involved in the Sale, Lease, or Other Disposition or Merger
          or Consolidation. If Original Cost Is Not Known, an Estimate of
          Original Cost Based, Insofar as Possible, upon Records or Data of the
          Applicant or its Predecessors must Be Furnished, Together with a Full
          Explanation of the Manner in Which Such Estimate Has Been Made, and a
          Description and Statement of the Present Custody of All Existing
          Pertinent Data and Records:

               See Exhibit C.

                                       19
<PAGE>

     H.   A Statement as to the Effect of the Proposed Transaction upon Any
          Contract for the Purchase, Sale, or Interchange of Electric Energy:

          The PECO Energy restructuring plan will have no material effect on any
          contract for the purchase, sale, or interchange of electric energy.
          See Section IV.B for a discussion of the PECO Energy restructuring
          plan's effects on rates.

     I.   A Statement as to Whether or Not Any Application with Respect to the
          Transaction or Any Part Thereof Is Required to Be Filed with Any Other
          Federal or State Regulatory Body:

          PECO Energy has applied to the Pennsylvania Public Utility Commission
          for approvals required to complete the PECO Energy restructuring plan.
          PECO Energy also will apply to the Nuclear Regulatory Commission, the
          Securities and Exchange Commission, and the Federal Communications
          Commission for approvals required to complete the PECO Energy
          restructuring plan.

     J.   The Facts Relied upon by Applicants to Show That the Proposed
          Disposition, Merger, or Consolidation of Facilities or Acquisition of
          Securities Will Be Consistent with the Public Interest:

               See Section IV, above.

     K.   A Brief Statement of Franchises Held, Showing Date of Expiration If
          Not Perpetual:

          As of January 2, 2000, PECO Energy will not hold any exclusive
          franchises to supply electric energy to retail electric customers.  In
          accordance with the terms of a settlement approved by the Pennsylvania
          Public Utility Commission consistent with the Pennsylvania Electricity
          Generation Customer Choice and Competition Act, all of PECO Energy's
          retail electric customers will be entitled to purchase their electric
          generation supply requirements from alternative electric generation
          suppliers.  PECO Energy will serve as provider of last resort to
          retail electric customers in the City of Philadelphia, Pennsylvania,
          and Bucks, Montgomery, Chester, York, and Delaware Counties,
          Pennsylvania.  PECO Energy will retain its franchise to provide
          distribution service to all retail customers.

          PECO Energy holds franchises to provide retail gas service in Bucks,
          Montgomery, Chester, Delaware, and Lancaster Counties, Pennsylvania.
          The Commonwealth of Pennsylvania recently enacted legislation under
          which all retail gas customers will also be entitled to purchase their
          gas supply requirements from alternative suppliers. Upon the
          implementation of the legislation, PECO Energy will not hold any
          exclusive franchises to sell gas to retail customers, although it
          expects it will serve as provider of last resort to its existing
          retail gas customers.  PECO Energy will continue to provide
          distribution service to all retail gas customers.

                                       20
<PAGE>

 VI. LIST OF MATERIALS SUBMITTED

     In accordance with Part 33 of the Commission's regulations, 18 C.F.R. Part
33, PECO Energy attaches the following exhibits to this application:

     Exhibit A:     Resolution(s) of PECO Energy's Board of Directors

     Exhibit B:     Statement of Measure of Control

     Exhibit C:     Balance Sheet

     Exhibit D:     List of Contingent Liabilities

     Exhibit E:     Income Statement

     Exhibit F:     Statement of Retained Earnings

     Exhibit G:     Applications Filed with Federal and State Regulators

     Exhibit H:     Proposed Form of Agreement Governing Proposed Transaction

     Exhibit I:     Maps

                                       21
<PAGE>

 VII.  CONCLUSION

       For the foregoing reasons, PECO Energy Company respectfully requests the
Commission to authorize it to effect the transfers of FERC-jurisdictional
facilities required to implement the PECO Energy restructuring plan as described
in this application.

                              Respectfully submitted,



                              __________________________________________
                              Floyd L. Norton, IV
                              Michael C. Griffen
                              Morgan, Lewis & Bockius LLP
                              1800 M Street, N.W.
                              Washington, D.C. 20036
                              Tel: (202) 467-7000

                              Paul R. Bonney
                              Vilna Waldron Gaston
                              PECO Energy Company
                              2301 Market Street
                              Philadelphia, Pennsylvania 19101
                              Tel: (215) 841-4252/4265

                              Attorneys for PECO Energy Company


Dated: December 16, 1999

                                       22
<PAGE>

                       COPIES OF EXHIBITS KGL-2 AND KGL-4
<PAGE>

                                   EXHIBIT A

                                  RESOLUTIONS

     PECO Energy respectfully requests waiver of the Commission's requirement
that it file, as Exhibit A to this application, copies of directors' resolutions
approving the transaction at issue.
<PAGE>

                                   EXHIBIT B

                        STATEMENT OF MEASURE OF CONTROL

        Statement of Measure of Control By or Over PECO Energy Company

     PECO Energy Company currently is not owned or controlled by any other
person, company, or other entity.  Upon completion of the PECO Energy
restructuring plan described in this application, "Exelon Corp.," through its
subsidiaries, will own interests in the following public utilities.

     ----------------------------------------------------------------
     Name of Public Utility Controlled                       Interest
     ----------------------------------------------------------------
     Susquehanna Power Company                                 100%
     ----------------------------------------------------------------
     PECO Energy Power Company                                 100%
     ----------------------------------------------------------------
     Susquehanna Electric Company                              100%
     ----------------------------------------------------------------
     Horizon Energy Company                                    100%
     ----------------------------------------------------------------
     AmerGen Energy Company, L.L.C.                             50%
     ----------------------------------------------------------------

     PECO Energy Company does not own any bank, trust company, banking
association, or firm that is authorized by law to underwrite or participate in
the marketing of securities of a public utility, or any company supplying
electric equipment to such party.
<PAGE>

                                   EXHIBIT C

                                 BALANCE SHEET

PECO Energy provides a copy of its balance sheet as of June 30, 1999.  PECO
Energy respectfully requests waiver of the Commission's requirement that it
provide, as part of Exhibit C to this application, pro forma adjustments to its
balance sheet.
<PAGE>

                                   EXHIBIT D

                            CONTINGENT LIABILITIES

PECO Energy respectfully requests waiver of the Commission's requirement that it
file, as Exhibit D to this application, a list of contingent liabilities.
<PAGE>

                                   EXHIBIT E

                               INCOME STATEMENT

PECO Energy provides a copy of its income statement as of June 30, 1999.  PECO
Energy respectfully requests waiver of the Commission's requirement that it
provide, as part of Exhibit E to this application, pro forma adjustments to its
income statement.
<PAGE>

                                   EXHIBIT F

                        STATEMENT OF RETAINED EARNINGS

PECO Energy respectfully requests waiver of the Commission's requirement that it
file, as Exhibit F to this application, a statement of retained earnings.
<PAGE>

                                   EXHIBIT G

                        APPLICATIONS FILED WITH FEDERAL
                             AND STATE REGULATORS

PECO Energy respectfully requests waiver of the Commission's requirement that it
file, as Exhibit G to this application, copies of applications filed with
federal and state regulators.
<PAGE>

                                   EXHIBIT H

                                  AGREEMENTS

PECO Energy submits copies of the following agreements concerning the PECO
Energy restructuring plan:

     1. PECO Energy Company Plan of Restructuring and Plan of Division

     2. Form of Assumption Agreement between PECO Energy Company and GenCo

     3. Form of Assumption Agreement between PECO Energy Power Company and GenCo

     4. Form of Easement and License Agreement between GenCo and PECO Energy
        Company

     5. Form of Call Contract for Generator Reliability Service between PECO
        Energy Company and GenCo

     6. Form of Amendment Agreement between GenCo and PECO Energy Company

     7. Forms of Interconnection Agreements Between PECO Energy Company and
        GenCo
<PAGE>

        PECO Energy Company Plan of Restructuring and Plan of Division


<PAGE>

      Form of Assumption Agreement between PECO Energy Company and GenCo


<PAGE>

   Form of Assumption Agreement between PECO Energy Power Company and GenCo


<PAGE>

 Form of Easement and License Agreement between GenCo and PECO Energy Company


<PAGE>

            Form of Call Contract for Generator Reliability Service
                     between PECO Energy Company and GenCo


      The Form of Call Contract for Generator Reliability Service between
            PECO Energy Company and GenCo is submitted under Tab 4
 of this filing. To avoid unnecessary duplication, it is not reproduced here.


<PAGE>

       Form of Amendment Agreement between GenCo and PECO Energy Company



               The Form of Amendment Agreement between GenCo and
         PECO Energy Company is submitted under Tab 5 of this filing.
         To avoid unnecessary duplication, it is not reproduced here.


<PAGE>

   Forms of Interconnection Agreements Between PECO Energy Company and GenCo



          The Forms of Interconnection Agreements Between PECO Energy
          Company and GenCo are submitted under Tabs 7 and 8 of this
    filing. To avoid unnecessary duplication, they are not reproduced here.
<PAGE>

                                   EXHIBIT I

                                     MAPS

<PAGE>

                                                                Exhibit 99-D-2.1

                                  BEFORE THE
                    PENNSYLVANIA PUBLIC UTILITY COMMISSION


APPLICATION OF PECO ENERGY    :
COMPANY, PURSUANT TO CHAPTERS       :
11, 19, 21, 22 AND 28 OF THE PUBLIC :
UTILITY CODE, FOR APPROVAL    :
OF (1) A PLAN OF CORPORATE    :
RESTRUCTURING, INCLUDING THE  :     APPLICATION
CREATION OF A HOLDING COMPANY       :    DOCKET NO. A-___________
AND (2) THE MERGER OF THE NEWLY     :
FORMED HOLDING COMPANY AND    :
UNICOM CORPORATION  :



                      APPLICATION OF PECO ENERGY COMPANY



Thomas P. Gadsden, Esquire          Paul R. Bonney, Esquire
[email protected]                    [email protected]
Anthony C. DeCusatis, Esquire       Ward L. Smith, Esquire
[email protected]                    [email protected]
Morgan, Lewis & Bockius, LLP        Kent D. Murphy, Esquire
1701 Market Street                  [email protected]
Philadelphia, PA 19103-2921         PECO Energy Company
Telephone:  (215) 963-5234          2301 Market Street
Facsimile:  (215) 963-5299          P.O. Box 8699
                                    Philadelphia, PA 19101-8699
                                    Telephone:  (215) 841-4252
November 22, 1999                   Facsimile:  (215) 568-3389
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
<S>                                                                         <C>
I.   INTRODUCTION                                                            1

I.   DESCRIPTION OF THE APPLICANT AND THE OTHER COMPANIES INVOLVED IN
     THE PROPOSED TRANSACTIONS                                               3

I.   OVERVIEW OF THE PROPOSED TRANSACTIONS                                   4

I.   REQUESTED APPROVALS AND LEGAL STANDARDS                                 8

I.   IMPACT OF THE PROPOSED TRANSACTIONS ON SERVICE, RATES, JOBS AND
     LOCAL COMMUNITIES                                                      16

I.   IMPACT OF THE PROPOSED TRANSACTIONS ON COMPETITION                     18

I.   BENEFITS OF THE RESTRUCTURING AND MERGER                               18

I.   WRITTEN TESTIMONY                                                      23

I.   ADDITIONAL SUPPORTING DATA                                             24

I.   OTHER REGULATORY AND SHAREHOLDER APPROVALS                             25

I.   PROPOSED LITIGATION SCHEDULE                                           27

I.   NOTICE                                                                 27
</TABLE>

     INDEX OF EXHIBITS
<PAGE>

                                  BEFORE THE
                    PENNSYLVANIA PUBLIC UTILITY COMMISSION


APPLICATION OF PECO ENERGY    :
COMPANY, PURSUANT TO CHAPTERS       :
11, 19, 21, 22 AND 28 OF THE PUBLIC:
UTILITY CODE, FOR APPROVAL    :
OF (1) A PLAN OF CORPORATE    :
RESTRUCTURING, INCLUDING THE  :     APPLICATION
CREATION OF A HOLDING COMPANY:      DOCKET NO. A-___________
AND (2) THE MERGER OF THE NEWLY     :
FORMED HOLDING COMPANY AND    :
UNICOM CORPORATION  :


                      APPLICATION OF PECO ENERGY COMPANY

                                A. INTRODUCTION


     1.   PECO Energy Company ("PECO" or the "Company"), pursuant to Chapters
11, 19, 21, 22 and 28 and all other applicable provisions of the Public Utility
Code, hereby requests that the Pennsylvania Public Utility Commission (the
"Commission") issue an Order approving a plan of corporate restructuring,
including the creation of a holding company ("Restructuring"), and the merger of
the newly formed holding company and Unicom Corporation ("Merger"). More
specifically, PECO requests that the Commission authorize: (1) the formation of
a holding company and the transfer of certain assets and common facilities from
PECO to its newly established corporate affiliates; and (2) the merger of the
newly formed holding company with Unicom Corporation ("Unicom"). In addition,
PECO seeks approval of various affiliated interest agreements between it and
other members of the new holding company system. Finally, PECO asks the
Commission to make the findings needed for its new generating
<PAGE>

company affiliate to obtain "exempt wholesale generator" ("EWG") status and to
engage in certain affiliated power sales under Sections 32(c) and 32(k) of the
Public Utility Holding Company Act of 1935 ("PUHCA").


     2.   The name and address of the Applicant are as follows:

          PECO Energy Company
          2301 Market Street
          P.O. Box 8699
          Philadelphia, PA 19101-8699


     3.   The names and addresses of the Applicant's attorneys are as follows:

          Paul R. Bonney, Esquire
          [email protected]
          Ward L. Smith, Esquire
          [email protected]
          Kent D. Murphy, Esquire
          [email protected]
          Assistant General Counsel
          PECO Energy Company
<PAGE>

          2301 Market Street
          P.O. Box 8699
          Philadelphia, PA 19101-8699
          (215) 841-4252
          (215) 568-3389 (FAX)

          Thomas P. Gadsden, Esquire
          [email protected]
          Anthony C. DeCusatis, Esquire
          [email protected]
          Morgan, Lewis & Bockius LLP
          1701 Market Street
          Philadelphia, PA 19103-2921
          (215) 963-5234
          (215) 963-5299 (FAX)


               B.   DESCRIPTION OF THE APPLICANT AND THE
                    OTHER COMPANIES INVOLVED IN THE
                    PROPOSED TRANSACTIONS
<PAGE>

     4.   PECO is an exempt public utility holding company under Section 3(a)(2)
of PUHCA (15 U.S.C. (S) 79c(a)(2)), organized and existing under the laws of the
Commonwealth of Pennsylvania, and is primarily engaged in the business of
supplying and distributing electricity and natural gas./1/  Retail electric
service is furnished in all or substantially all of Bucks, Chester, Delaware,
Montgomery and Philadelphia Counties and a portion of York County. Retail gas
service is provided in substantial portions of Bucks, Chester, Delaware and
Montgomery Counties and a small section of Lancaster County. PECO is also
engaged, through separate subsidiaries, functional divisions or partnership
interests, in a variety of non-regulated activities, including the competitive
marketing of electric generation and natural gas, telecommunications, real
estate development and infrastructure services. A diagram depicting PECO's
existing corporate structure is attached hereto as Exhibit "A."


     5.   Unicom is an exempt public utility holding company under Section
3(a)(1) of PUHCA (15 U.S.C. (S) 79c(a)(1)), organized and existing under the
laws of the State of Illinois.  Unicom's principal subsidiary is Commonwealth
Edison Company ("ComEd"), a regulated utility that is engaged in the business of
supplying, transmitting and distributing electricity in northern Illinois and,
through a wholly owned subsidiary,



- -------------------
/1/  PECO has turned over the operational control of its electric transmission
     system to an independent system operator ("ISO") -- the PJM
     Interconnection, L.L.C. -- which performs that function for a control area
     comprising all or parts of the states of Pennsylvania, New Jersey,
     Delaware, Maryland and Virginia, and the District of Columbia.
<PAGE>

provides transmission service in portions of Indiana./2/ In addition, other
subsidiaries are engaged in a variety of non-regulated activities, including
energy monitoring, distributed generation, district cooling and the competitive
marketing of electric generation and natural gas. A diagram depicting Unicom's
existing corporate structure is attached hereto as Exhibit "B".

     6.   NEWHOLDCO Corporation ("NewCo."), a Pennsylvania corporation, is a
wholly owned subsidiary of PECO that was established to effectuate the
Restructuring and the Merger.  As more fully described below, NewCo. will become
the new publicly held holding company for the combined enterprise with PECO and
ComEd as wholly owned first tier subsidiaries, and will register with the
Securities and Exchange Commission ("SEC") under PUHCA./3/


                   C.  OVERVIEW OF THE PROPOSED TRANSACTIONS


     7.   The proposed Restructuring is described in detail in the attached Plan
of Restructuring (Exhibit "C").  As discussed therein, the principal goals of
the



- -------------------
/2/  ComEd is a charter member of the Midwest Independent System Operator
     ("MISO"), which is expected to commence operations in 2001. Once the MISO
     is operational, ComEd will turn over control of its transmission system to
     the MISO.

/3/  "NewCo." will be renamed shortly after consummation of the Restructuring
     and Merger.
<PAGE>

Restructuring are to establish a holding company system and to formalize, in a
corporate sense, the functional separation of PECO's existing lines of business.

     8.   The proposed Restructuring will be accomplished in three major steps,
the first being a share exchange.  More specifically, each PECO shareholder will
be entitled to receive for each share of PECO common stock held either one share
of NewCo. common stock or $45.00 in cash, subject to proration.  NewCo. will
thereby become the parent of PECO.

     9.   In the second step of the proposed Restructuring, PECO will transfer
its generating assets and wholesale power contracts to a newly formed generation
subsidiary ("GenCo.") and will transfer certain other assets and common
facilities to NewCo., a newly formed service company ("ServeCo.") and newly
formed non-utility business subsidiaries ("VenturesCo.")./4/  These transfers
will be effected through a "division" under the Pennsylvania Business
Corporation Law (15 Pa. C.S. (S)(S) 1101 et seq.). The transferred assets will
include the stock of certain existing wholly owned subsidiaries. "PECO Energy
Company," as the "dividing corporation," will "survive" the division as the
regulated transmission and distribution utility. PECO's wholesale marketing
operations (i.e., Power Team) will be located within GenCo.; its retail
marketing


- ---------------------
/4/  It is anticipated that, following the Restructuring and Merger, various
     administrative functions (e.g., accounting, legal, human resources,
     finance, information technology) will be centralized and that associated
     services will be provided to PECO, and other members of the affiliated
     group, on a contractual basis. See discussion below.
<PAGE>

operations (i.e., Excelon Energy) will report through VenturesCo. and may be
located, as a matter of corporate structure, either in VenturesCo. or GenCo.


     10.  In the final step of the proposed Restructuring, PECO will distribute
to NewCo. its shares of stock in GenCo., as well as its interest in several
other existing subsidiaries.  As a result, only the Eastern Pennsylvania
Development Company, the PECO Energy Capital Corporation and the PECO Energy
Transition Trust/5/ will continue to be owned and controlled by PECO after the
Restructuring and Merger.

     11.  Concurrent with the Restructuring, and pursuant to the terms of the
attached Agreement and Plan of Exchange and Merger (the separately bound Exhibit
"D"), Unicom will merge into NewCo.  Each Unicom shareholder will be entitled to
receive for each share of Unicom common stock held either a 0.95 share of NewCo.
common stock or $42.75, subject to proration.   NewCo. will thereby become the
corporate parent of ComEd and the other Unicom subsidiaries.


- ------------------
/5/  The PECO Transition Trust was established in conjunction with PECO's
     securitization of intangible transition property (i.e. recoverable stranded
     costs).
<PAGE>

     12.  As indicated previously, PECO common stock will be exchanged for a
like number of shares of NewCo. common stock./6/  Consequently, all common
shareholders of PECO will become common shareholders of NewCo. (unless, of
course, they elect to receive cash instead). The proposed Restructuring and
Merger will not change the terms or character of PECO's outstanding preferred
stock -- those shares will not be exchanged, but rather will continue to
represent preferred equity in PECO. In addition, none of PECO's outstanding
indebtedness will be assumed or guaranteed by NewCo.; indeed, the vast majority
of PECO's debt will remain the sole obligation of PECO./7/

     13.  Diagrams depicting NewCo.'s post-Merger corporate structure are
attached hereto as Exhibits "E," "E-1" and "E-2." As shown thereon, and as
further described in supporting testimony submitted herewith, NewCo.'s principal
subsidiaries will include PECO, ComEd, GenCo., ServeCo. and one or more
companies engaged in miscellaneous non-regulated business ventures. As noted
previously, NewCo., which will be headquartered in Chicago but also have offices
in Philadelphia, will be a registered public utility holding company under
PUHCA.

     14.  The NewCo. board of directors will consist of sixteen members, eight
selected by PECO and eight selected by Unicom.  Corbin A. McNeill, Jr.,
president, chief

- --------------------
/6/  As is the case with PECO common shares today, NewCo. common stock will be
listed and publicly traded on the New York Stock Exchange.
<PAGE>

executive officer and chairman of the board of Unicom, will share managerial
responsibility for the combined enterprise for a transition period lasting until
December 31, 2003. In broad terms, Mr. McNeill will oversee generation and
energy marketing operations and Mr. Rowe will oversee transmission and
distribution operations, as well as unregulated business lines.
Kenneth G. Lawrence, a 30-year PECO veteran, will be President of the
disagregated PECO and will be responsible for managing the electric and natural
gas delivery functions in Pennsylvania.


     15.  PECO will remain headquartered in Philadelphia and, as noted above,
will house local electric and natural gas delivery operations. Consistent with
the terms of the May 14, 1998 Full Settlement in its electric restructuring
proceeding at Docket No. R-00973953 (the "Restructuring Settlement"), PECO will
satisfy its obligations as provider of last resort by purchasing required
amounts of energy and capacity at wholesale from GenCo. and other generation
suppliers.


     16.  In short, PECO will continue to provide regulated electric and natural
gas service and, as such, will remain subject to the Commission's jurisdiction
over its retail rates and terms and conditions of service. PECO's dealings with
its affiliates, in turn, will be governed by the provisions of Chapter 21 of the
Public Utility Code and, in the

- ------------------------------------------------------------------------------
/7/  PECO expects that certain pollution control bonds which relate directly
     to specific generating plant investment will be assigned to GenCo.
<PAGE>

case of GenCo., by the Code of Conduct and Competitive Safeguards set forth in
the Restructuring Settlement. Finally, should it engage in retail electric and
natural gas sales in the Commonwealth, GenCo. (and its affiliated suppliers)
will subject itself to regulation under Chapters 28 and 22 of the Code.

          D.   REQUESTED APPROVALS AND LEGAL STANDARDS

     17.  The transactions described herein implicate a number of Code
provisions. To the extent the Commission concludes that the following recitation
of requested actions is incomplete, PECO asks that the Commission grant such
additional approvals as are necessary to complete the proposed Restructuring and
Merger.

                                  Chapter 11

     18.  Section 1102(a)(3) of the Public Utility Code (66 Pa. C.S. 1102(a)(3))
requires that a public utility obtain a certificate of public convenience before
it may "acquire from, or transfer to, . . . the title to, or the possession or
use of, any tangible or intangible property used or useful in the public
service." Section 1103(a) of the Code further provides that such a certificate
shall be issued only upon a showing that its
<PAGE>

granting is "necessary or proper for the service, accommodation, convenience, or
safety of the public" (66 Pa. C.S. (S) 1103(a)).

     19.  In York v. Pa. P.U.C., 295 A.2d 825, 828 (1972), the Pennsylvania
Supreme Court held that those seeking approval of a utility merger must
demonstrate that the merger "will affirmatively promote the `service,
accommodation, convenience, or safety of the public' in some substantial way."
Evidence deemed sufficient to satisfy this standard has included testimony that
the merger would produce a stronger company; that investors would be more
attracted to a larger enterprise; that certain duplicative tasks would be
eliminated; that service would be improved; and that economies would give rise
to lower rates than otherwise over time./8/  See York, supra,; see also
Application of Newtown Artesian Water Co. and Indian Rock Water Co., 1992 Pa.
PUC LEXIS 44 (April 7, 1992).

     20.  Share Exchange and Change in Control. The share exchange between PECO
and NewCo., by effecting a "change in control" of PECO, will constitute a
transfer of used or useful property under Section 1102(a)(3) (66 Pa. C.S. (S)
1102(a)(3)), as that provision has been interpreted and applied by the
Commission. See 52 Pa. Code (S) 69.901

__________________________

/8/  In several recent decisions, the Commission has ruled that the specific
     impact of a merger or acquisition on future rates was more appropriately
     addressed in a subsequent rate proceeding. See, e.g., Joint Application of
     PG Energy, Inc. et al., Docket No. A-120011 (Order entered September 15,
     1999); Joint Application of Philadelphia Suburban Water Co. et al., Docket
     No. A-212370.F0018 (Order entered March 31, 1995).
<PAGE>

(Utility Stock Transfer Under 66 Pa. C.S. (S) 1102(a)(3) - Statement of
Policy)./9/ For the reasons discussed in Paragraph 35, below, PECO submits that
the proposed Restructuring is in the public interest and therefore requests that
the Commission issue a certificate of public convenience evidencing the
foregoing approval./10/


     21.  Transfer Of Assets. In its May 14, 1998 Order approving PECO's
Restructuring Settlement, the Commission stated as follows (p. 10):


          2.   That the Commission hereby approves without condition all aspects
     of PECO's transfer or assignment of its generation assets and liabilities
     and the wholesale power contracts as set forth in the settlement. The
     transfer or assignment may be, in PECO's discretion, to an entity that is
     an affiliate or subsidiary of PECO, or a non-affiliate. We hereby grant and
     issue all approvals and certificates of public convenience required under
     the Public Utility Code regarding the transfer or assignment of PECO's
     generating assets and liabilities and wholesale power contracts under the
     settlement, including but not limited to approvals under Chapters 5, 11,
     19, 21 and 28 of the Public Utility Code.

__________________________
/9/  The Merger of NewCo. and Unicom will not result in the creation of a new
controlling interest or the elimination of an existing controlling interest, as
those terms are defined in the Commission's Policy Statement (52 Pa. Code (S)
69.901), and therefore, in PECO's view, does not itself trigger the requirements
of Section 1102(a)(3).

/10/ To the extent necessary, PECO further requests that the Commission approve
the concomitant change in control over PECO's 50% interest in PECO Hyperion
Telecommunications ("PHT"). PHT, a general partnership formed by PECO and
Hyperion Telecommunications of Pa., Inc., was issued a certificate of public
convenience on March 14, 1996 to furnish intrastate telecommunications services
in the Philadelphia area as a competitive access provider (see Docket No. A-
310378). On May 25, 1998, PHT's certificate was revised to allow it to provide
competitive local exchange services and to offer intraLATA toll services (Docket
No. A-310378, F.0002 and F.0003). On March 29, 1999, PHT's certificate was
further revised to allow it to operate as a competitive local exchange carrier
in the service territory of United Telephone (Docket No. A-310378 F. 0002). The
proposed Restructuring and Merger will have no effect on PHT's operations.
<PAGE>

Consistent with the Restructuring Settlement (p. 24), the generating assets and
liabilities will be transferred to GenCo. at their value at the date of
transfer./11/  In accordance with Section 1102 of the Code (66 Pa. C.S. (S)
1102), PECO requests that the Commission take the ministerial step to issue any
necessary certificate of public convenience.

     The proposed Restructuring and Merger further anticipate the transfer by
PECO to NewCo., ServeCo. and VenturesCo. of various assets that will be utilized
by them in furnishing miscellaneous business services (e.g., accounting, legal,
human resources, finance, information technology).  As discussed in Paragraph 35
below, PECO believes that the consolidated group can achieve certain
efficiencies by centralizing these common functions and that such efficiencies
will ultimately inure to the benefit of PECO's retail electric and natural gas
customers.  The specific items to be transferred will not be known until
integration teams conclude their analyses; however, a preliminary representation
of the assets and liabilities to be transferred is provided in Exhibit "G."
Following the practice utilized in the Restructuring Settlement for its
generating assets, PECO requests that the Commission pre-approve the transfer of
miscellaneous assets and common facilities to NewCo., ServeCo. and VenturesCo.
at their value as of the date of transfer,

____________________
/11/ A general description of the generating assets, liabilities and wholesale
     power contracts to be transferred is provided in Exhibit "F." Also included
     is a schedule setting forth, by plant account, the net book value of such
     assets and liabilities at June 30, 1999.
<PAGE>

with the understanding that PECO will file with the Commission an itemized list
of such assets and liabilities once the transfers have been completed.
<PAGE>

                                   Chapter 19

     22.  Securities And Obligations. The proposed Restructuring and Merger do
not call for PECO to issue or assume any new securities. However, several debt
obligations of PECO will likely be assigned to GenCo. as part of the
aforementioned transfer of generating assets and liabilities. This transaction
would not appear to trigger the requirements of Section 1901 of the Code (66 Pa.
C.S. (S) 1901). In the alternative, to the extent required by law, PECO requests
that the Commission issue the necessary approvals.

                                   Chapter 21

     23.  Contracts With Affiliated Interests. Following the proposed
Restructuring and Merger, services that are presently furnished by separate
business units within PECO will be provided by separate corporate entities. For
example, and as earlier described, certain routine functions, such as
accounting, legal, human resources, finance and information technology, will be
housed within ServeCo. and made available to PECO on a contractual basis. The
provision of non-power goods and services from a ServeCo. in a registered
holding company system is generally regulated by the SEC. PECO and Unicom will
submit a form of affiliated services contract to the SEC that generally controls
<PAGE>

the provision of non-power goods and services to all entities in the corporate
family, including PECO. The SEC contract is attached as Exhibit "H-1." This
contract conforms to SEC requirements on pricing -- that the services be
provided at no more than cost -- and rigorous requirements for allocation of
indirect costs. PECO anticipates that the contract will be approved by the SEC
in substantially the form attached as Exhibit "H-1." PECO also believes that the
agreement is reasonable and in the public interest. Insofar as the SEC contract
will control the provision of non-power goods and services from ServeCo. to
PECO, PECO therefore requests that the contract, in the form provided as Exhibit
"H-1" or in such other substantially similar form as ultimately approved by the
SEC, be approved under Section 2102(b) of the Code (66 Pa. C.S. (S) 2102(b)).

     24.  In addition to the services that will be provided by ServeCo., from
time to time other entities within the corporate group may provide or receive
non-power goods and services from PECO. A form of service agreement for the
provision of those goods and services is attached as Exhibit "H-2." This
contract is based on the SEC contract described above and contains the same
pricing and allocation factors, with one key exception: for transactions that
involve PECO and any affiliated electric generation supplier ("EGS"), the
contract provides that PECO will continue to honor the specific pricing
provisions approved by the Commission in Appendices G and H of the Restructuring
Settlement. Since this contract implements the affiliate transaction pricing for
PECO - EGS transactions that the Commission previously approved, PECO believes
that the agreement is reasonable and in the public interest and requests that
the contract,
<PAGE>

in the form provided as Exhibit "H-2" or in such other substantially similar
form to conform that contract to the service contract that will ultimately be
approved by the SEC, be approved under Section 2102(b) of the Code (66 Pa. C.S
(S) 2102(b)).

     25.  PECO will enter into a purchased power agreement with its GenCo.
affiliate to provide substantially all of PECO's generation needs for the year
2000. The form of contract for that service is attached as Exhibit "H-3." PECO
will either submit this wholesale purchased power contract to the Federal Energy
Regulatory Commission ("FERC") for its approval, or seek waiver of that
requirement. In the Restructuring Settlement, PECO committed to abide by the
comparable treatment/non-discrimination features set forth in the Competitive
Safeguards (Appendix G) and the Interim Code of Conduct (Appendix H) attached to
the Settlement Agreement. PECO acknowledges that its obligations under that
agreement continue, notwithstanding the Restructuring and Merger, and will apply
to its purchased power agreement with GenCo. PECO therefore believes that the
form of agreement is reasonable and consistent with the public interest.

                               Chapters 22 and 28


     26.  Natural Gas And Electric Restructuring. Chapters 22 (Natural Gas
Competition Act) and 28 (Electric Competition Act) contain parallel provisions
requiring
<PAGE>

the Commission to consider whether a proposed merger, consolidation, acquisition
or disposition "is likely to result in anticompetitive or discriminatory
conduct, including the unlawful exercise of market power, which will prevent
retail [gas] [electricity] customers in this Commonwealth from obtaining the
benefits of a properly functioning and workable competitive retail [natural gas]
[electricity] market." See 66 Pa. C.S. (S)(S) 2210 and 2811(e). As the
Commission previously recognized in approving the Restructuring Settlement, the
formal separation of PECO's electric generation and delivery functions, coupled
with the consumer protections to which PECO has already agreed, will have a
beneficial effect on the development of a competitive retail electric
market./12/ In addition, PECO and ComEd have taken leading roles in their
respective jurisdictions in promoting and facilitating the opening up of
wholesale and retail markets for competition. As demonstrated by the detailed
analyses submitted with this filing, the Merger will not result in
anticompetitive or discriminatory conduct or the unlawful exercise of market
power, will not impede the further development of retail electric competition
and will have no effect on PECO's natural gas operations.

                  Exempt Wholesale Generator ("EWG") Findings

_______________________________
/12/ PECO notes that Chapter 28 approval for the transfer of electric generating
     assets, liabilities and wholesale power contracts was expressly granted as
     part of PECO's Restructuring Settlement. See Paragraph 21 above.
<PAGE>

     27.  PECO does not plan to seek EWG status for GenCo. from the FERC at this
time. However, that situation may change in the future. In order to minimize the
possibility of having to refile a similar application, PECO therefore requests
that the Commission's Order approving this Application contain the findings
required by Section 32(c) of PUHCA (15 U.S.C. (S) 793-5a(c)), namely that the
transfer of generating assets, liabilities and wholesale power contracts to a
newly formed corporate subsidiary (1) will benefit customers, (2) is in the
public interest and (3) does not violate state law.

     28.  In addition, and for the same reasons, PECO requests that the
Commission's Order include the findings required by Section 32(k) of PUHCA (15
U.S.C. (S) 793-5(a)(k))with respect to purchases of power from GenCo., i.e. that
(1) the Commission possesses sufficient regulatory authority, resources and
access to books and records of PECO and any relevant associate, affiliate or
subsidiary company to exercise its duties under Section 32(k) and (2) the
purchase by PECO of energy and capacity from an affiliated EWG will benefit
customers, does not violate State law, would not provide the EWG an unfair
competitive advantage and is in the public interest. See Application of UGI
Development Co., Docket No. P-00991693 (Order adopted August 26, 1999).

     29.  The Commission essentially made the foregoing findings when it
approved the Restructuring Settlement, authorizing the transfer of PECO's
generating assets to a separate corporate entity and adopting stringent
Competitive Safeguards/Code
<PAGE>

of Conduct provisions governing transactions between PECO and GenCo. PECO simply
asks that those findings be made explicit in the Commission's Order approving
the proposed Restructuring and Merger.

          E.   IMPACT OF THE PROPOSED TRANSACTIONS ON
               SERVICE, RATES, JOBS AND LOCAL COMMUNITIES

     30.  PECO is committed to providing adequate, efficient, safe and reliable
electric service, and its track record of extraordinary dependability bears this
out. Neither the Restructuring nor the Merger will diminish in any way PECO's
aggressive pursuit of service excellence. To the contrary, PECO believes that
the combined enterprise, by virtue of its greater resources and the sharing of
"best practices," will be even better positioned to meet future customer demands
and to ensure that the high quality of service presently being provided is
maintained and/or enhanced.

     31.  The rates, rules, regulations, and terms and conditions of service in
effect on the date of closing will not change as a result of the Restructuring
and Merger. Going forward, PECO believes that economies generated by the
Restructuring and the Merger will help to offset the ongoing rise in the cost of
providing regulated electric service, will give rise to lower rates than
otherwise over time and will delay the need for rate relief
<PAGE>

following the expiration of the transmission and distribution ("T&D") rate cap
on June 30, 2005./13/

     32.  The proposed transactions have very positive implications for the
long-term outlook for employment in the Commonwealth. PECO, as the local "pipes
and wires" company, will continue to be headquartered in Philadelphia and there
will be no reduction in force of non-supervisory field personnel. In addition,
GenCo., including power marketing operations such as the Power Team, will be
headquartered in suburban Philadelphia and its presence is expected to create
substantial employment opportunities as it grows and as competitive wholesale
and retail electric and natural gas markets flourish. Finally, ServeCo., which
will be headquartered in Chicago, will also maintain offices in the Philadelphia
area and will employ substantial numbers of administrative personnel currently
working for PECO.

     33.  PECO has always played a vital role in the day-to-day life of
southeastern Pennsylvania through the financial support of numerous civic and
charitable organizations and, of equal importance, through the tireless
involvement of PECO employees in the activities of those groups. That commitment
will continue.

                            F. IMPACT ON COMPETITION

______________________
/13/  As part of the Restructuring Settlement, PECO agreed to extend the T&D
      rate cap by an additional 4 years from the June 30, 2001 date specified in
      the Electric Competition Act.
<PAGE>

     34.  PECO believes that the proposed Restructuring and Merger will have a
positive impact on competition by (1) facilitating the separation of the
generation and delivery functions and (2) furthering the development of new
energy-related goods and services. However, to ensure that the specific concerns
of Sections 2210(a) and 2811(e) are addressed, PECO is submitting herewith a
detailed market power study performed by Dr. William H. Hieronymus (Ex. WHH-1).
The study was conducted in a manner consistent with the Competitive Analysis
Screen described in Appendix A to the FERC's Merger Policy Statement, which, in
turn, is intended to comport with the Department of Justice and Federal Trade
Commission Horizontal Merger Guidelines ("DOJ/FTC Guidelines"). /14/ Based on
his analysis, Dr. Hieronymus concludes that the Merger will have no adverse
competitive effect on Pennsylvania's retail energy markets.


                 G.  BENEFITS OF THE RESTRUCTURING AND MERGER

     35.  Restructuring. The holding company structure is a well-established
form of corporate organization for those companies conducting multiple lines of
business. Indeed, PECO is one of the very few major utilities in Pennsylvania
that has not


_____________________
/14/  The Commission has adopted the DOJ/FTC Guidelines as the framework for
      evaluating the competitive impact of electric utility mergers. See Joint
      Application of DQE Inc., Allegheny Power System, Inc., and AYP Sub, Inc.,
      Docket No. A-110150F0015 (Order entered August 29, 1997).
<PAGE>

heretofore structured its operations in this fashion. /15/ The benefits of the
proposed Restructuring and functional disaggregation are summarized below.

          (a)  Financial And Operational Flexibility. The holding company
structure will allow use of financing techniques that are better suited to the
requirements, characteristics and risks of non-utility operations without
affecting PECO's creditworthiness. The ability to access different capital
markets quickly with a broad range of financial instruments and maturities will
permit a financing to be tailored to the type of investment being made on the
most attractive possible terms, taking into account the appropriate
capitalization for a particular subsidiary. This, in turn, will permit NewCo. to
take advantage of non-utility business opportunities in a more timely manner.

          (b)  Increased Accountability. Legally distinct entities will increase
internal accountability and enable management to more thoroughly evaluate the
success of existing and new businesses. This form of organization will also
facilitate business segment reporting as now required under SEC and financial
accounting rules.


_____________________
/15/  To the best of PECO's knowledge, all of the following entities are part of
      holding company systems: Electric -- Duquesne Light Company, Metropolitan
      Edison Company, Pennsylvania Electric Company, Pennsylvania Power Company,
      Pennsylvania Power and Light Company and West Penn Power Company; Natural
      Gas - Columbia Gas of Pa., Equitable Gas Company, National Fuel Gas
      Distribution Corporation, Penn Fuel Gas Companies, PG Energy, Inc.,
      Peoples Natural Gas Company, and UGI Utilities, Inc.; Telecommunications--
      Bell of Pa. and Citizens Utilities, Inc.; Water -- Consumers Water
      Companies, Pennsylvania-American Water Company, Philadelphia Suburban
      Water Company and United Water Pennsylvania.
<PAGE>

          (c)  Insulation Of Utility Customers From Unregulated Business Risks.
The adoption of a holding company structure will further serve to insulate
utility customers from the risks attendant to unregulated businesses.
Conducting non-utility businesses through separate subsidiaries of NewCo.,
rather than through subsidiaries or functional divisions of PECO, and the
separate financing of their activities should provide additional comfort that
PECO's customers are effectively shielded from the potential earnings volatility
of those businesses.


          (d)  Positive Effects On Retail Competition. The separation of
electric generation and marketing functions from regulated delivery services
will facilitate compliance with the Code of Conduct and Competitive Safeguards
adopted as part of PECO's Restructuring Settlement because the individuals
involved in these functions will be employed by different corporate entities. In
addition, the creation of a stand-alone generating company was clearly
anticipated and favored by the parties to that Settlement.

          (e)  Reduction Of The Potential For Cross-Subsidization. PECO believes
that economies can be achieved by centralizing certain business functions in a
ServeCo., particularly as its non-utility operations expand in the future.
Moreover, this step, coupled with rigorous adherence to the service agreements
attached hereto as
<PAGE>

Exhibits H-1 and H-2, should significantly reduce any risk of PECO's utility
customers subsidizing unregulated businesses.

     36.  Merger.  The proposed Merger will create one of the premier energy
companies in the nation. Indeed, by combining their considerable resources and
expertise, PECO and ComEd will strengthen their ability to provide cost-
effective, safe and reliable service in the rapidly evolving competitive energy
marketplace and thereby will affirmatively promote the public interest in a
number of substantial ways.

          (a)  Expanded Portfolio Of Generation Assets. The combined enterprise
is expected to have a national portfolio of generation assets with a capacity
nearly double that of PECO alone. It is anticipated that this will enable PECO
and ComEd to enhance reliability and minimize their exposure to the risk of
supply disruptions.

          (b)  Sharing Of Best Practices.  The sharing of "best practices"
between PECO and ComEd will enhance operations at all levels -- e.g., nuclear
generating plant performance, fuel procurement, transmission and distribution
system maintenance and customer service.  Over time, such improvements will
directly benefit customers in terms of the quality and cost of the service they
receive.
<PAGE>

          (c)  Improved Reliability And Customer Service. With a customer base
of approximately 5 million, the combined enterprise will be able to invest in
new technologies that might be cost prohibitive for either PECO or ComEd on a
stand-alone basis. In addition, PECO and ComEd plan to assess the viability of
coordinating their call center operations to provide enhanced phone coverage
during high volume periods.

          (d)  Commitment To Competition. PECO and ComEd fully support wholesale
and retail competition and, as previously noted, have become strong advocates of
the restructuring initiatives undertaken in Pennsylvania and Illinois in recent
years. This shared vision, and the critical mass that will come with the Merger,
will allow both companies to be even more proactive in the development of new
energy-related goods and services.

          (e)  Cost Savings.  The Merger will create the opportunity to achieve
meaningful cost savings not only through the sharing of best practices (see
discussion above), but also through purchasing economies and the elimination of
duplicative functions. These savings will inure to the benefit of customers over
time as they will mitigate the need to file for rate relief in the future.
<PAGE>

          (f)  Intellectual Capital. The merged entity will be able to draw upon
the knowledge, technical expertise and experience of a deeper and more diverse
workforce simply by virtue of the combination of human resources.

          (g)  Creation Of A Stronger Company. All of the foregoing will result
in the creation of a stronger company that is better positioned to compete and
to attract capital on reasonable terms.

     37.  PECO remains fully committed to providing safe and reliable electric
and natural gas service at reasonable rates and, in fact, is convinced that the
relief requested in this Application will enhance its ability to do so in the
emerging deregulated environment.


                             H.  WRITTEN TESTIMONY

     38.  PECO is submitting herewith the written testimony and supporting
exhibits of five witnesses that comprise its case-in-chief:
<PAGE>

     Kenneth G. Lawrence is President of PECO Energy Distribution and is
     responsible for managing PECO's retail natural gas and electric delivery
     functions. Mr. Lawrence makes clear that the proposed Restructuring and
     Merger will not adversely affect PECO's regulated operations, the employees
     who staff those operations or the local communities and organizations that
     have enjoyed PECO's support over the years.

     Richard G. White is PECO's Vice President of Corporate Planning.  Mr. White
     describes the proposed Restructuring and Merger and identifies the
     principal factors that PECO considered in deciding to pursue a merger with
     Unicom.

     Thomas P. Hill, Jr. is PECO's Vice President, Regulatory and External
     Affairs.  Mr. Hill underscores PECO's unwavering commitment to honor all
     aspects of its Restructuring Settlement and explains how various provisions
     of that Settlement will apply following consummation of the Restructuring
     and Merger proposed herein.  Mr. Hill also discusses the impact of merger-
     related synergies on future regulated rates.
<PAGE>

     Thomas J. Flaherty is the National Partner - Energy Consulting and a
     partner in the Deloitte & Touche Consulting Group LLC.  Mr. Flaherty
     presents the results of a study that he conducted to assist PECO and Unicom
     in identifying and quantifying the potential cost savings in regulated
     operations that will likely arise from the proposed Merger.


     William H. Hieronymus is Senior Vice President of PHB Hagler Bailly, Inc.
     Dr. Hieronymus analyzes the Merger in light of the FERC's Merger Policy
     Statement and concludes that the Merger will have no adverse competitive
     impact on Pennsylvania's retail energy markets.

                        I.  ADDITIONAL SUPPORTING DATA

     39.  Attached as Exhibit "I" are statements of the original cost of PECO's
electric and natural gas plant in service, by primary account, together with the
associated reserve for depreciation, as of December 31, 1998.  As noted
previously, a schedule setting forth the net book value of assets and
liabilities to be transferred to GenCo. is provided in Exhibit F.
<PAGE>

     40.  Attached as Exhibit "J-1" is a consolidated balance sheet for PECO as
of June 30, 1999 and a pro forma, post-Restructuring and Merger balance sheet
for NewCo. as of that same date.  Exhibit "J-2" provides a post-Restructuring
and Merger balance sheet for PECO.

     41.  Attached as Exhibit "K-1" is an income statement for PECO for the
twelve months ended December 31, 1998 and the six months ended June 30, 1999,
and pro forma, post-Restructuring and Merger income statements for NewCo. for
those same periods.  Exhibit "K-2" provides a post-Restructuring and Merger
income statement for PECO for the six months ended June 30, 1999.

     42.  Attached as Exhibit "L" is a listing of the number of electric
customers and natural gas customers, by rate classification, for PECO as of June
30, 1999.  Approval of this Application and consummation of the transactions
proposed herein will have no effect on the number of customers served by PECO or
the rates that they are charged.

     43.  Attached as Exhibit "M" is a copy of PECO's 1998 annual report to
shareholders.
<PAGE>

     44.  Attached as Exhibit "N" is a copy of Unicom's 1998 annual report to
shareholders.

     45.  All annual reports, tariffs, certificates of public convenience,
applications, securities certificates and similar documents previously filed by
PECO are made a part hereof by reference.

                J.  OTHER REGULATORY AND SHAREHOLDER APPROVALS

     46.  Consummation of the proposed Restructuring and Merger is subject to
various conditions, including:  (a) the approval of the SEC under PUHCA; (b) the
registration of NewCo.'s common stock by the SEC under the Securities Act of
1933; (c) the expiration or termination of the waiting period under the Hart-
Scott-Rodino Antitrust Improvements Act of 1976; (d) the approval of the FERC
under the Federal Power Act; and (e) the approval of the Nuclear Regulatory
Commission ("NRC") under Section 184 of the Atomic Energy Act of 1954.  In
addition, ComEd will shortly be making a filing
<PAGE>

with the Illinois Commerce Commission under Section 16-111(g) of the Illinois
Public Utilities Act./16/

     47.  PECO is preparing and will file shortly a request seeking a ruling
from the Internal Revenue Service ("IRS") that the Restructuring transactions
contemplated herein will qualify as a tax-free restructuring for Federal
corporate income tax purposes.  In addition, certain rulings by the IRS and/or
legislative changes to the Internal Revenue Code will be necessary to assure
that nuclear decommissioning funds accumulated in qualified and non-qualified
trust accounts and presently maintained by PECO may be transferred to GenCo. on
a tax-free basis.

     48.  The proposed Restructuring and Merger are subject to the affirmative
vote of the holders of a majority of the votes cast by all of PECO's common
shareholders.  In addition, the proposed Merger is subject to the affirmative
vote of at least two-thirds of the outstanding shares of Unicom common stock.
PECO and Unicom intend to seek the approval of their shareholders at  meetings
to be scheduled for early April, 2000 and plan to complete the Restructuring and
Merger as soon as possible after all regulatory and shareholder approvals have
been obtained.

__________________________
/16/ A copy of the FERC Merger application, filed jointly by PECO and ComEd on
     November 22, 1999, is being served on the Commission under separate cover.
     Copies of the SEC, NRC and Illinois filings will be served on the
     Commission when made.
<PAGE>

                       K.  PROPOSED LITIGATION SCHEDULE

     49.  PECO hopes to consummate the proposed Restructuring and Merger and to
begin creating the benefits therefrom as expeditiously as possible consistent
with the legitimate review rights of interested parties.  With that in mind, and
because the transactions set forth herein do not raise competitive concerns,
PECO requests that the Commission direct that this proceeding be concluded
within five months, or by mid-April 2000.  Such a schedule would be consistent
with the time taken by the Commission to review and act upon other recent merger
applications.

     50.  PECO suggests that holding a Preheating Conference early in the
process will assist the parties in identifying and resolving the issues that
will need to be addressed.  In addition, PECO proposes that this matter, should
it proceed to full litigation, be briefed directly to the Commission without
resort to an initial round of Briefs to the presiding Administrative Law Judge,
the issuance of a Recommended Decision and the filing of Exceptions and Replies
to Exceptions thereto.  This procedure was followed successfully in PECO's
electric restructuring proceeding and yielded significant savings in terms of
time and litigation expense.
<PAGE>

                                  L.  NOTICE

     51.  PECO will shortly begin sending bill inserts to its customers advising
them of this filing and will issue a press release and publish notice of this
Application in newspapers of general circulation in its service territory.  PECO
is also serving copies of this filing on the Offices of Trial Staff, Consumer
Advocate and Small Business Advocate and is serving notice of this filing on all
other active parties to PECO's electric restructuring proceeding at Docket No.
R-00973953 and parties that have been active in natural gas restructuring (see
the service list attached to PECO's transmittal letter).  A copy of the form of
notice is appended hereto as Exhibit O.
<PAGE>

     WHEREFORE, for the reasons set forth above, PECO Energy Company requests
that the Commission approve this Application and grant the relief requested
herein.


                              Respectfully submitted,


                              _________________________
                              Paul R. Bonney, Esquire
                              [email protected]

                              Ward L. Smith, Esquire
                              [email protected]

                              Kent D. Murphy, Esquire
                              [email protected]
                              Assistant General Counsel

                              PECO Energy Company
                              2301 Market Street
                              P.O. Box 8699
                              Philadelphia, PA 19101-8699
                              (215) 841-4252
                              (215) 568-3389 (FAX)

                              Thomas P. Gadsden, Esquire
<PAGE>

                              [email protected]

                              Anthony C. DeCusatis, Esquire
                              [email protected]

                              Morgan, Lewis & Bockius LLP

                              1701 Market Street
                              Philadelphia, PA 19103-2921
                              (215) 963-5234
                              (215) 963-5299 (FAX)

Dated: November 22, 1999      Counsel for PECO Energy Company

<PAGE>

                                                                Exhibit 99-D-3.1

                               STATE OF ILLINOIS
                          ILLINOIS COMMERCE COMMISSION


Commonwealth Edison Company                  )
                                             )
                                             )
Notice of reorganization pursuant to         )
Section 16-111(g) of the Illinois            )
Public Utilities Act.                        )


                      NOTICE OF REORGANIZATION PURSUANT TO
             SECTION 16-111(g) OF THE ILLINOIS PUBLIC UTILITIES ACT

          Pursuant to Section 16-111(g) of the Illinois Public Utilities Act
("Act"), 220 ILCS 5/16-111(g), Commonwealth Edison Company ("ComEd" or the
"Company") hereby notifies the Commission of a reorganization involving the
Company's parent, Unicom Corporation ("Unicom").  Unicom has agreed to merge
with a new holding company affiliate of PECO Energy Company ("PECO").  The new
holding company, which will be named later, will own, among other things, nearly
all of the outstanding common stock of ComEd,/1/ and will be registered with the
Securities and Exchange Commission ("SEC") under the Public Utility Holding
Company Act of 1935 ("PUHCA").

          The reorganization is another step in the ongoing restructuring of
utility operations to accommodate the development of competitive retail and
wholesale markets. ComEd is deeply committed to the establishment of a
competitive retail market in Illinois, and previously has taken several
significant steps to make the development of such a market possible. ComEd is
also firmly committed to ensuring the reliable operation of its transmission and
distribution systems, and to bringing the performance of those systems to the
very highest level.

- ----------------------

/1/  A very small percentage (less than 1%) of ComEd's common stock is not held
     by Unicom and will be unaffected by this transaction.
<PAGE>

This reorganization, which brings together two active supporters of competition
in the retail and wholesale electric marketplaces, will serve both goals --
promoting competition and enhancing reliability of power delivery.

I.   Purpose of the Reorganization

     A.   The Reorganization

          Unicom and PECO have entered into a definitive agreement providing for
a merger of equals./2/  Unicom is the parent of ComEd, which provides electric
service across northern Illinois to approximately 3.4 million customers.  ComEd
has the largest nuclear fleet in the country, with a total capacity of 9,400
megawatts from 10 generating units at five sites.  It has disposed, or is in the
process of disposing, of all of its fossil fueled generating capacity.  Unicom,
through other subsidiaries, also is participating in various unregulated,
energy-related businesses.

          PECO is an electric and gas utility serving 1.5 million electric
customers and more than 400,000 natural gas customers  in the Philadelphia area.
PECO participates actively in the deregulated marketplace, trading wholesale
power 24 hours a day in 47 states and Canada, purchasing and operating nuclear
generation and establishing unregulated ventures in retail energy sales,
telecommunications and utility infrastructure management.  PECO also has a
substantial nuclear fleet, and has set new nuclear performance standards in
safety, capacity factors, refueling efficiency and low operating and maintenance
costs, while producing more than 33 billion kilowatt-hours of nuclear
electricity in 1998.  PECO also owns and operates coal, natural gas, oil,
landfill gas and hydro generating plants.

- ------------------

/2/  A detailed description of the parties to the merger is set forth in
     Appendix A to this Notice. A copy of the merger agreement is included as
     Appendix B to this Notice.

                                       2
<PAGE>

          PECO, like ComEd, has actively supported the introduction of
competition into the wholesale and retail marketplaces.  The Commonwealth of
Pennsylvania has introduced customer choice into its retail electric market, and
PECO is restructuring its operations to reflect that new environment.  PECO also
is committed, again like ComEd, to providing the highest quality delivery
service.  To that end, PECO also seeks to structure its operations in a manner
that produces the highest level of reliability.

          The new holding company will have total assets in excess of $37
billion.  Its utility subsidiaries will constitute one of the nation's largest
electric utility systems, with approximately 5 million customers and total
utility revenues of $12.4 billion. The combined company will rank among the
nation's five largest power generators, with a generation portfolio of more than
22,500 megawatts, and will be a leader in the growing U.S. wholesale power
marketing business.

          The principal benefits of the merger for Illinois consumers will be
the continued transition of ComEd toward operations in a competitive
marketplace, the formation of a new company with significant financial and
managerial resources to assure provision of reliable electric service and the
implementation of a new management structure that will support more direct
senior management oversight of transmission and distribution operations.

          ComEd believes that the benefits offered by this reorganization are
precisely the types of benefits that the General Assembly anticipated when it
adopted the Customer Choice and Rate Relief Law in 1997 ("Customer Choice Law").
Moreover, the General Assembly plainly intended that utilities seeking to
reorganize or restructure to achieve these benefits have the flexibility to do
so in an expeditious manner.  Accordingly, the mechanism that ComEd is using --
a reorganization under Section 16-111(g) of the Act -- is being put to the very
use that the General Assembly foresaw and desired.

                                       3
<PAGE>

          As the Commission is aware, ComEd has been an active proponent of the
development of a competitive retail electric market in Illinois.  ComEd
participated actively in the development of the Customer Choice Law, and has
since taken several steps to see that meaningful competition evolves in the
Illinois market.

          The most significant step that ComEd has taken to date involves the
sale of all of its remaining fossil-fueled generating assets to Edison Mission
Energy ("Mission").   The sale of those assets to Mission has provided strong,
definitive signals that Illinois is restructuring the power generation business
in a manner consistent with the General Assembly's intent and that the Illinois
generation market is truly open to competition.  This sale will encourage others
to build capacity in Illinois, because investors are more likely to invest in
generation where meaningful competition with the incumbent is more assured.
Previously, ComEd sold other fossil units to affiliates of Southern Company and
Dominion Resources, Inc.

          The reorganization reflects ComEd's effort to further restructure its
operations to reflect the new environment.  Generation has become a more complex
operation than it was in the past, with a different set of risks, and demands
increasing levels of managerial attention.  At the same time, ComEd is striving
to improve its distribution and transmission system performance, which also
requires an increasing amount of management's time.  Further, ComEd needs to
assure that the company will continue to be healthy financially as it faces
increasing levels of competition.

          The combination with PECO allows ComEd to address all of these
concerns.  The reorganization will allow ComEd to isolate the generation
function from the transmission and distribution operations, devote greater
management attention to the operation of the transmission and distribution
systems, and structure operations to ensure continued financial viability.

                                       4
<PAGE>

ComEd will emerge from the reorganization stronger, from both managerial and
financial perspectives.

     B.   Post-Merger Structure and Operations

          The new holding company will be headquartered in Chicago.  The
generation and power marketing operations will be the responsibility of a new
affiliate ("Genco"), which will be headquartered in the Philadelphia region.
Unicom's and PECO's electric and gas delivery operations will remain separate
subsidiaries of the holding company and will continue to operate under the names
Commonwealth Edison Company and PECO Energy Company, and will maintain their
respective headquarters in Chicago and Philadelphia.  The new holding company
will be incorporated in Pennsylvania.  A diagram of the new holding company
system is attached as Appendix C to this Notice.

          Generation operations will be managed separately from transmission and
distribution operations.  The ComEd and PECO systems will be operated as
separate control areas, but there will be system-wide exchanges of power on an
economic basis, and transmission operations will be coordinated. Further, the
merged system will rely on one or more service companies for the performance of
a wide range of functions.

          1.   Management Structure

          As indicated above, the reorganization facilitates the use of a
management structure that will be able to devote the full attention that both
generation and delivery operations require.  Following the close of the merger,
Corbin A. McNeill, Jr., president, chief executive officer and chairman of the
board of PECO,  and John W. Rowe, president, chief executive officer and
chairman of the board of Unicom,  will become co-chief executive officers of the
new holding company for a transition period lasting until December 31, 2003.
During the first half of the transition period, Mr. McNeill will be chairman and
Mr. Rowe will be president of the new

                                       5
<PAGE>

holding company. Mr. McNeill will serve as chairman of the board of directors
for the first half of the transition period and Mr. Rowe will serve as chairman
of the executive committee of the board. During the second half of the
transition period, Mr. Rowe will serve as chairman of the board of directors and
Mr. McNeill will serve as chairman of the executive committee of the board. At
the end of the transition period, Mr. Rowe will become chairman and sole chief
executive officer of the new holding company. Mr. McNeill will remain on the
board of directors.

          During the transition period, Mr. McNeill will have responsibility for
overseeing the generation and power marketing operations of the new company and
Mr. Rowe will have responsibility for overseeing transmission and distribution
operations, as well as unregulated retail enterprises.  This means that senior
management will not have to divide its time between generation and delivery
concerns.  Both Mr. McNeill and Mr. Rowe will be able to devote their complete
attention to their respective spheres of responsibility.

          Further, ComEd will have a Distribution President who will be
responsible for delivery services.  As will be discussed below,  ComEd will no
longer be in the power marketing business.  Accordingly, the position of
Distribution President will be dedicated solely to the wires business.

          The combined company will continue to focus on maintaining excellent
performance at its nuclear plants.  Mr. Oliver D. Kingsley, Jr. will be the
Chief Nuclear Officer of the combined company system.

          2.   Generation Operations

          Upon or shortly after consummation of the merger, all power production
and wholesale merchant functions will be centralized in a single entity or group
of entities ("Genco").

                                       6
<PAGE>

ComEd will be supplied by Genco under a wholesale agreement that will be filed
with the Federal Energy Regulatory Commission ("FERC") at a later date.

          ComEd presently intends to transfer control of the output of its
nuclear generating assets to Genco.  ComEd has not yet determined the form of
such a transfer, which could involve a sale or lease of plant, or a power sales
agreement.  Additionally, ComEd intends to assign to Genco all of its purchase
rights under the wholesale purchase agreements with Mission, Dominion and
Southern.  ComEd will cease to market power and energy in the wholesale and
retail markets, except to the extent that ComEd is required to offer power and
energy under its Illinois retail tariffs (including the power purchase option
under Section 16-112 of the Customer Choice Law) and existing wholesale and
retail contracts./3/

          ComEd is not seeking approval of any restructuring of its generation
function in this Notice.  To the extent required by Illinois law, ComEd will
make an appropriate filing with the Commission regarding such a transaction when
the terms of the transaction are determined.

          3.   Transmission and Distribution Operations

          A primary focus of the new system will be the provision of reliable
transmission and distribution service.  As indicated above, the reorganization
will further ComEd's present, ongoing efforts to improve its level of service.
The provision of reliable service requires significant managerial effort and
attention, and a financially stable company.  The reorganization, as also
indicated, will bring about both.  The management structure described above
ensures that management is not required to divide its attention between
generation and delivery.  The combination of the two companies also brings about
a more robust competitor that will be stronger financially than either of the
two companies merging to form it.

___________________

/3/       PECO also will restructure, and intends to transfer all of its
     generating assets to Genco.

                                       7
<PAGE>

          The combined company will continue to strengthen the transmission and
distribution systems of the two utilities.  ComEd's immediate priority is, and
must be, improving the reliability of its distribution service.  ComEd will have
made substantial progress by the time this merger is consummated.  Thereafter,
the new company will be committed to making sure that both operating utilities
provide service that satisfies the expectations of their customers. The two
companies will combine the best practices and talent from each company to create
the preeminent company for distribution, as well as generation.

          4.   Service Company

          ComEd and PECO anticipate that the new holding company will have one
or more service company subsidiaries ("Service Company").  The companies are
determining which functions will be performed by Service Company.  The functions
are likely to include administrative, legal, accounting, human resources and
similar matters.

          Transactions between Service Company and ComEd will be subject to the
affiliate transaction regulations of the SEC under PUHCA and to the affiliated
interest requirements of Section 7-101 of the Act.  ComEd will make the
appropriate filings with the Commission for approval of affiliated interest
transactions at a later date, most likely before the end of this year.

     C.   Mechanics of the Transaction

          Each shareholder of PECO will have the opportunity to elect to receive
for each PECO Energy share either one new holding company common share or $45.00
in cash, subject to proration; and each shareholder of Unicom will have the
opportunity to elect to receive for each Unicom share either 0.95 new holding
company common shares or $42.75 in cash, subject to proration. The cash prices
represent a premium of approximately 11% to PECO's and Unicom's ten-day average
trading prices through September 22, 1999, the day before announcement of the
reorganization.

                                       8
<PAGE>

          Based on approximately 182.4 million shares of PECO expected to be
outstanding immediately prior to the close of the transaction (after planned
stock repurchases), PECO shareholders will receive approximately 165.7 million
shares in the new holding company and $750.0 million in cash. Based on
approximately 191.3 million shares of Unicom expected to be outstanding
immediately prior to the close of the transaction (after planned stock
repurchases), Unicom shareholders will receive approximately 165.1 million
shares in the new holding company and $750.0 million in cash. At the close of
the transaction, PECO and Unicom shareholders will each own approximately 50% of
the new holding company.

          The transaction is expected to be tax-free to shareholders to the
extent they receive common stock of the combined company and, in general, cash
received is expected to be taxed as capital gains.

II.  Satisfaction of Regulatory Requirements

     A.   Illinois Commerce Commission

          The merger involving Unicom and PECO is a "reorganization" within the
meaning of Section 7-204 of the Act.  That section defines a "reorganization" as
"any transaction which, regardless of the means by which it is accomplished,
results in a change in the ownership of a majority of the voting capital stock
of an Illinois public utility; or the ownership or control of any entity which
owns or controls a majority of the voting capital stock of a public utility. . .
 ." 220 ILCS 5/7-204.  Under the agreement reached by Unicom and PECO, the
ownership of virtually all of the voting capital stock of ComEd will pass from
Unicom to the new holding company, and Unicom will cease to exist.

          Prior to enactment of the Customer Choice Law, electric utilities were
required to obtain approval of reorganizations under Sections 7-204 and 7-204A
of the Act.  Section 16-111(g), which was added by the Customer Choice Law,
however,  provides that:

                                       9
<PAGE>

          During the mandatory transition period, an electric utility may,
          without obtaining any approval of the Commission other than that
          provided for in this subsection and notwithstanding any other
          provision of this Act or any rule or regulation of the Commission that
          would require such approval:

          implement a reorganization, other than a merger of 2 or more public
          utilities as defined in Section 3-105 or their holding companies....

          This reorganization does not involve the merger of two public
utilities or their holding companies because PECO is not a "public utility"
within the meaning of Section 3-105 of the Act.  Accordingly,  the
reorganization itself need only satisfy the requirements of Section 16-111(g),
and does not require Commission approval under any other Section of the Act.

     B.   Provision of Information Required under Section 16-111(g)

          Section 16-111(g) provides that an electric utility implementing a
reorganization must comply with the provisions of Section 16-128(c) and (d) of
the Act, if applicable, and give the Commission certain information and at least
30 days notice of the reorganization.  ComEd hereby commits that it will comply
with Section 16-128 of the Act, to the extent applicable, and provides the
following information and commitment required by Section 16-111(g) of the Act:

          (i)  a complete statement of the entries that the electric utility
               will make on its books and records of account to implement the
               proposed reorganization or transaction together with a
               certification from an independent certified public accountant
               that such entries are in accord with generally accepted
               principles and, if the Commission has previously approved
               guidelines for cost allocations between the utility and its
               affiliates, a certification from the chief accounting officer of
               the utility that such entries are in accord with those cost
               allocation guidelines

          The statement of entries and required certifications are attached at
Appendix D.

          (ii) a description of how the electric utility will use proceeds of
               any sale, assignment, lease or transfer to retire debt or
               otherwise reduce or recover the costs of services provided by
               such electric utility

          The merger does not involve a sale, assignment, lease or transfer of
assets by ComEd.  This is a merger at the holding company level.  No premium
will accrue to either merger partner.  Hence, there are no sales proceeds
involved.  To the extent that ComEd's cost of

                                       10
<PAGE>

service is reduced through savings produced by the merger, such reductions will
be reflected in the returns on equity reported to the Commission pursuant to
Section 16-111 of the Act.

          (iii)  a list of all federal approvals or approvals required from
                 departments and agencies of the State, other than the
                 Commission, that the electric utility has or will obtain before
                 implementing the reorganization or transaction

          Consummation of the merger will require approval from the following
federal regulatory agencies: a) the FERC, under Section 203 of the Federal Power
Act,  b) the Nuclear Regulatory Commission, for a change in control of nuclear
operating licenses, c) the SEC, under PUHCA,  and d) the Federal Communications
Commission, for a change in control of telecommunications licenses.  Copies of
the initial filings with these agencies will be provided to the Commission as
they are made.  Additionally, Unicom and PECO are required to notify the Federal
Trade Commission and the Department of Justice under the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended, and await the expiration of the
applicable waiting period under that act.

          (iv)   an irrevocable commitment by the electric utility that it will
                 not, as a result of the transaction, impose any stranded cost
                 charges that it might otherwise be allowed to charge retail
                 customers under federal law or increase the transition charges
                 that it is otherwise entitled to collect under this Article XVI

          ComEd hereby irrevocably commits that it will not, as a result of the
reorganization, either impose any stranded cost charges that it might otherwise
be allowed to charge retail customers under federal law or increase the
transition charges that it is otherwise entitled to collect under Article XVI of
the Act.

                                       11
<PAGE>

                                    Respectfully submitted,
                                    Commonwealth Edison Company



                                    By: _______________________
                                        One of its attorneys


Rebecca J. Lauer
Deputy General Counsel
Commonwealth Edison Company
125 S. Clark St.
Chicago, Illinois 60603
(312) 394-5400 - voice
(312) 394-3950 - fax
[email protected]


Paul T. Ruxin
Christopher W. Flynn
Holly D. Gordon
Jones, Day, Reavis & Pogue
77 W. Wacker
Suite 3500
Chicago, Illinois 60601
(312) 782-3939 - voice
(312) 782-8585 - fax
[email protected]
[email protected]
[email protected]

                                       12
<PAGE>

                                   APPENDIX A


Description of the Parties to the Proposed Merger
- -------------------------------------------------

     Unicom.  Unicom, which is based in Chicago, Illinois and has been
     ------
incorporated since 1994, is a public company dedicated to meeting the energy
needs of residential, commercial, industrial and wholesale customers.  Unicom
and its subsidiaries have approximately 16,000 employees, $7 billion in annual
revenues, and 182,000 shareholders. Unicom is the parent holding company to
Commonwealth Edison Company ("ComEd"), its principal subsidiary, and Unicom
Enterprises, Incorporated ("Unicom Enterprises"), the holding company for
unregulated subsidiaries, and Unicom Resources, Incorporated, an unregulated
subsidiary.

     ComEd.  ComEd is engaged in the production, transmission, distribution and
     -----
sale of electricity to wholesale and retail customers.  ComEd has been providing
electricity to customers in Northern Illinois since 1887, when it was founded as
Chicago Edison Company.  In 1907, Chicago Edison Company and Commonwealth
Electric consolidated to become Commonwealth Edison Company.  ComEd provides
service to more than 3.4 million customers (nearly 300,000 are commercial and
industrial customers, and the rest residential) across northern Illinois, or 70
percent of the state's population, covering approximately one-fifth of the state
of Illinois (including the city of Chicago).  ComEd's current net generating
capability is 19,138 megawatts (MW), supplied by five nuclear power and eight
fossil plants plus peaking units.  In March 1999, ComEd announced the sale of
its fossil operations.  The sale, involving 9,772 MW, is expected to close in
the fourth quarter of 1999.

     ComEd has approximately 5,200 miles of overhead transmission circuits and
nearly 400 miles of underground transmission circuits.  ComEd is part of the
Mid-American Interconnected Network, Incorporated (MAIN), one of ten regional
reliability councils under the North

                                       1
<PAGE>

American Electric Reliability Council ("NERC") dedicated to the safe, reliable
and economic operation of the region's electric transmission system.

     Unicom Enterprises.  Unicom Enterprises serves as the holding company for
     ------------------
Unicom's unregulated subsidiaries, including:

 .    Unicom Thermal Holdings, Inc. provides retail district energy systems and
     -----------------------------
     site specific thermal energy products.

 .    Unicom Power Holdings, Inc. provides creative energy solutions that yield
     ---------------------------
     significant cost savings and reduced risks associated with the overall
     energy supply through a customized portfolio.

 .    Unicom Energy Services, Inc. provides energy services including gas
     ----------------------------
     services, performance contracting, distributed energy and active energy
     management systems.

 .    Unicom Power Marketing, Inc. may engage in wholesale marketing activities.
     ----------------------------

 .    Unicom Energy, Inc. provides retail electric and gas services as an
     -------------------
     Alternative Retail Electric Supplier.

 .    Unicom Technology Development ,Inc. pursues advanced technologies and
     -----------------------------------
     other research and development opportunities for commercial application in
     the power industry.

 .    Unicom Investment, Inc. will be used to facilitate the fossil plant sale
     -----------------------
     from ComEd to Edison Mission Energy and to fund other business
     opportunities.

 .    Unicom Mechanical Services, Inc. serves as the holding company for
     --------------------------------
     Unicom's mechanical service operations that designs, installs and services
     heating, ventilation and air conditioning systems.

     PECO.  PECO, which is based in Philadelphia, Pennsylvania, is an investor-
     ----
owned electric  and natural gas distribution utility and energy services company
with approximately

                                       2
<PAGE>

$5.2 billion in annual revenues, $12 billion in assets, 195,000 shareholders and
6,500 employees. PECO operates three primary businesses: PECO Energy Generation,
PECO Energy Distribution, and PECO Energy Ventures. PECO Energy is one of the
largest and cleanest power generators with nuclear, coal, natural gas, oil,
hydro, and landfill gas generating assets, and with 1.5 million electric and
415,000 natural gas customers situated across 2,107 square miles in southeastern
Pennsylvania.

     PECO Energy Generation.  PECO has more than 100 years of generation plant
     ----------------------
management experience.  PECO Energy Generation is responsible for safe, reliable
and efficient operation of PECO's power generating facilities, which includes a
diverse fleet of nuclear, hydro, and fossil generating units.  PECO  has coal,
oil, natural gas, landfill gas fired generators, run of the river and pumped
storage hydro facilities, and two-unit nuclear plants at two sites.  PECO is
recognized as a leading nuclear operator across the industry and has managed two
other plants under service contracts.  PECO's large baseload capacity and fuel
diversity helps its competitiveness in today's changing generation market.
Market expertise and competitive generation assets provide the foundation for
Power Team, the five-year old unit of PECO involved in wholesale power trading.
Power Team is a leading supplier of reliable physical delivery of electricity to
other utilities, cooperatives and marketers all across the continental United
States and Canada.  Power Team's energy sales have grown in each of the past
five years, and for the first time, wholesale deliveries exceeded PECO's retail
sales in 1998.  Power Team also has agreements to market full output of plants
under construction or planned in Texas, Georgia and Oklahoma.  AmerGen, a
partnership with British Energy, was formed in 1997 to acquire additional
nuclear generating assets.  Both firms have strong operating cultures for safety
and reliability.  AmerGen has agreements to assume ownership of Three Mile
Island Unit 1 in Pennsylvania, the two-unit Nine Mile Point Nuclear Power
Station in upstate New York, and the

                                       3
<PAGE>

Clinton Power Station in southern Illinois. Exelon Energy is the retail energy
supplier that markets in deregulated states including Pennsylvania, New Jersey,
Maryland, and Massachusetts. It has established itself a competitive supplier in
Pennsylvania with customers in every utility franchise in the state.

     PECO Energy Distribution.  PECO Energy Distribution is responsible for
     ------------------------
building and maintaining the massive regional infrastructure that safely and
reliably delivers electricity and natural gas to retail customers in
southeastern Pennsylvania.  The utility has 1.5 million electric and 415,000
natural gas customers in all or portions of the City of Philadelphia, Bucks,
Chester, Delaware, Montgomery, and York counties.  PECO Energy Distribution
handles customer choice implementation, customer service, meter reading and
billing, response to emergencies, and maintenance of the thousands of miles of
poles and wires, underground mains and cables for electric and gas delivery.

     PECO Energy Ventures.  PECO Energy Ventures operates several businesses
     --------------------
under the Exelon master brand related to energy and energy-related services,
communications, and infrastructure services.  PECO Energy Ventures develops
businesses that leverage PECO assets and skills in new growth opportunities,
sometimes in partnership with other firms such as AT&T and Adelphia's Hyperion
Communications unit.  Exelon Communications has built a 27,000-mile fiber optic
network in the Greater Philadelphia and Lehigh Valley regions with current
expansion in New Jersey and a wireless cellular telephone network that serves
more than 100,000 customers.

                                       4

<PAGE>

                                                                Exhibit 99-D-4.1

                                                               December 20, 1999


               APPLICATION FOR LICENSE TRANSFERS AND CONFORMING
               ------------------------------------------------
                       ADMINISTRATIVE LICENSE AMENDMENTS
                       ---------------------------------

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
LIST OF ENCLOSURES........................................................   iv

LIST OF ENCLOSURES IN PROPRIETARY ADDENDUM................................    v

I.       INTRODUCTION.....................................................    1

II.      PURPOSE OF THE TRANSFERS AND NATURE OF
         THE TRANSACTION MAKING THE TRANSFERS NECESSARY OR
         DESIRABLE........................................................    5

III.     GENERAL CORPORATE INFORMATION REGARDING EXELON AND GENCO.........    7

         A.       NAME OF TRANSFEREE......................................    8
         B.       ADDRESS.................................................    8
         C.       DESCRIPTION OF BUSINESS OR OCCUPATION...................    8
         D.       ORGANIZATION AND MANAGEMENT.............................    8

                  1.       State of Establishment and Place of Business...    8
                  2.       Board of Directors.............................    8
                  3.       Principal Executives and Officers..............    9

         E.       FOREIGN PARTICIPATION...................................    9

IV.      TECHNICAL QUALIFICATIONS OF GENCO................................   10

         A.       OVERVIEW................................................   10
</TABLE>

                                      -i-
<PAGE>

                          TABLE OF CONTENTS (CONT'D)

<TABLE>
<CAPTION>
                                                                          PAGE
                                                                          ----
<S>                                                                       <C>
         B.       ORGANIZATIONAL STRUCTURE...............................   11
         C.       MANAGEMENT PERSONNEL AND RESPONSIBILITIES..............   13
         D.       TECHNICAL SUPPORT......................................   16
         E.       CONCLUSIONS............................................   17

V.       FINANCIAL QUALIFICATIONS OF GENCO...............................   18

         A.       PROJECTED OPERATING REVENUES AND OPERATING COSTS.......   18
         B.       DECOMMISSIONING FUNDING ASSURANCE......................   20

VI.      ANTITRUST CONSIDERATIONS........................................   21

VII.     RESTRICTED DATA AND CLASSIFIED NATIONAL SECURITY
         INFORMATION.....................................................   21

VIII     ENVIRONMENTAL CONSIDERATIONS....................................   21

IX.      ADDITIONAL INFORMATION REGARDING SPECIFIC REGULATORY
         REQUIREMENTS, PLANS, PROGRAMS AND PROCEDURES....................   22

         A.       OFFSITE POWER CONSIDERATIONS...........................   22
         B.       EMERGENCY PLANNING.....................................   23
         C.       EXCLUSION AREAS........................................   23
         D.       SECURITY...............................................   24
         E.       QUALITY ASSURANCE PROGRAM..............................   25
         F.       UPDATED FINAL SAFETY ANALYSIS REPORT...................   25
         G.       TRAINING...............................................   25
         H.       PRICE-ANDERSON INDEMNITY AND NUCLEAR INSURANCE.........   26
         I.       STANDARD CONTRACT FOR DISPOSAL OF SPENT NUCLEAR
                  FUEL...................................................   26
</TABLE>

                                     -ii-
<PAGE>

                          TABLE OF CONTENTS (CONT'D)

<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
X.       OTHER REQUIRED REGULATORY APPROVALS..............................    27

XI.      EFFECTIVE DATE...................................................    28

XII.     CONCLUSION.......................................................    29
</TABLE>

                                     -iii-
<PAGE>

                              LIST OF ENCLOSURES
                              ------------------

Enclosure 1   Organization Chart:  Proposed Corporate Structure of Exelon and
              Principal Subsidiaries

Enclosure 2   Agreement and Plan of Exchange and Merger

Enclosure 3   1996, 1997, and 1998 Annual Reports of PECO Energy Company

Enclosure 4   1996, 1997, and 1998 Annual Reports of Unicom Corporation

Enclosure 5   GENCO Nuclear Group Organizational Structure

Enclosure 6   Resumes of Key Executives of GENCO

Enclosure 7   Projected Income Statement and Opening Balance Sheet of GENCO
              (Non-Proprietary Version)

Enclosure 8   Affirmation of Gerald R. Rainey

Enclosure 9   10 CFR 2.790 Affidavit of Gerald R. Rainey

Enclosure 10  Conforming License Amendments to Reflect License Transfers of
              Peach Bottom Atomic Power Station Units 1, 2, and 3, and Limerick
              Generating Station Units 1 and 2.

                                     -iv-
<PAGE>

                  LIST OF ENCLOSURES IN PROPRIETARY ADDENDUM
                  ------------------------------------------

The following proprietary enclosure is in a separately bound Proprietary
Addendum to the Application:


Enclosure 7P  Projected Income Statement and Opening Balance Sheet of GENCO
              (Proprietary Version)

                                      -v-
<PAGE>

               APPLICATION FOR LICENSE TRANSFERS AND CONFORMING
                       ADMINISTRATIVE LICENSE AMENDMENTS


I.   INTRODUCTION

     Unicom Corporation (Unicom), an Illinois corporation, is the parent company
of Commonwealth Edison Company (ComEd). ComEd is currently the licensed owner
and operator of Braidwood Station, Units 1 and 2; Byron Station, Units 1 and 2;
Dresden Nuclear Power Station, Units 1, 2, and 3; LaSalle County Station, Units
1 and 2; and Zion Nuclear Power Station, Units 1 and 2. ComEd is also licensed
to own 75% of Quad Cities Nuclear Power Station, Units 1 and 2, and to operate
the Quad Cities units./1/


     PECO Energy Company (PECO), a Pennsylvania corporation, is currently the
owner of Peach Bottom Atomic Power Station, Unit 1, holds a 42.49% ownership
interest in Peach Bottom Units 2 and 3, and is the licensed operator of all
three Peach Bottom units./2/ PECO is also the sole owner and operator of the
Limerick Generating Station, Units 1 and 2, and holds a 42.59% ownership
interest in the Salem Generating Station, Units 1 and 2, which are operated by
Public Service Electric & Gas Company (PSE&G)./3/

________________________
/1/  MidAmerican Energy Company is the owner of 25% of Quad Cities Nuclear Power
     Station, Units 1 and 2. MidAmerican's non-operating ownership share is not
     involved in this application.

/2/  Pursuant to Purchase Agreements with Delmarva Power & Light Company and
     Atlantic City Electric Company, dated September 27, 1999, PECO will acquire
     an additional 7.51% ownership interest in Peach Bottom, Units 2 and 3. When
     these transactions are completed, PECO will hold a 50% ownership interest
     in each of these units.

/3/  The ownership and operating interests in the Peach Bottom and Salem units
     that are not held by PECO, including those held by Public Service Electric
     & Gas Company (PSE&G), are not involved in this application. A request for
     conforming changes to the

                                      -1-
<PAGE>

     On September 22, 1999, Unicom and PECO entered into an Agreement and Plan
of Exchange and Merger (Merger Agreement) which will result in the formation of
a combined company, Exelon Corporation (Exelon). Exelon will be a Pennsylvania
corporation and a registered holding company under the Public Utility Holding
Company Act (PUHCA) of 1935, as amended. Exelon will have several principal
subsidiaries, including: ComEd; PECO; and GENCO./4/ ComEd will remain an
Illinois regulated public utility that will continue to own and operate the
transmission and distribution (T&D) assets currently held by ComEd. PECO will
remain a Pennsylvania regulated public utility that will continue to own and
operate the T&D assets currently held by PECO. GENCO will be a Pennsylvania
corporation that will own and operate the nuclear electrical generating units
currently owned and operated by ComEd and PECO and the fossil-fired electrical
generating units currently owned and operated by PECO, and will engage in other
business activities, including the sale of electricity at wholesale./5/ A
schematic of the corporate structure resulting from the Unicom/PECO merger is
presented in Enclosure 1.


     In connection with these transactions, and in accordance with 10 CFR 50.80,
PECO requests that the NRC issue an order consenting to the transfer of PECO's
interests in the

- -------------------------------------------------------------------------------
     licenses and technical specifications for the Salem units will be submitted
     separately by PSE&G.

/4/  The actual name of GENCO has yet to be determined. The parties will notify
     the NRC once the actual name is selected, which will be well in advance of
     the time requested for issuance of an NRC order approving the license
     transfers and associated conforming license amendments.

/5/  Other activities or assets being transferred to GENCO include PECO's and
     Unicom's power marketing operations and PECO's interests in hydroelectric
     generating facilities.

                                      -2-
<PAGE>

following Facility Operating Licenses:

          License No. DPR-12 (Peach Bottom Atomic Power Station, Unit 1)
          License No. DPR-44 (Peach Bottom Atomic Power Station, Unit 2)
          License No. DPR-56 (Peach Bottom Atomic Power Station, Unit 3)
          License No. NPF-39 (Limerick Generating Station, Unit 1)
          License No. NPF-85 (Limerick Generating Station, Unit 2)
          License No. DPR-70 (Salem Nuclear Generating Station, Unit 1)
          License No. DPR-75 (Salem Nuclear Generating Station, Unit 2)

     PECO requests that the NRC consent to these transfers and authorize GENCO
to own and/or operate the facilities on essentially the same terms and
conditions included in the existing licenses. No physical changes will be made
to the facilities as a result of the transfers, and there will be no significant
changes in their day-to-day operation. ComEd's and PECO's existing nuclear
organizations will be transferred to GENCO, and nuclear employees of ComEd and
PECO will become employees of GENCO or a wholly-owned subsidiary of GENCO.

     PECO also requests, in accordance with 10 CFR 50.90, "Application for
Amendment of License or Construction Permit," NRC approval of certain
administrative amendments to conform the licenses and Technical Specifications
(TS) for these facilities to reflect the proposed transfers. Mark-ups of the
licenses and TS of the Peach Bottom and Limerick units showing the necessary
conforming changes are provided in Enclosure 10, as are the associated
evaluations conducted in accordance with 10 CFR 50.91, "Notice for Public
Comment; State Consultation," confirming that these changes do no more than
reflect the proposed license transfer and involve no significant hazards
consideration, consistent with the generic finding of no significant hazards in
10 CFR 2.1315(a).

     Additionally, PECO is a 50% owner of AmerGen Energy Company, LLC (AmerGen),
a company owned by PECO and British Energy, Inc., which owns and operates
nuclear power

                                      -3-
<PAGE>

plants in the United States. AmerGen is submitting a separate application
pursuant to 10 CFR 50.80, seeking NRC consent for the transfer to GENCO of
PECO's ownership interest in AmerGen./6/


- -------------------------
/6/  AmerGen is a Delaware limited liability company owned by PECO and British
     Energy, Inc. AmerGen owns and operates nuclear plants in the United States.
     The NRC has recently consented to the transfers of ownership and operating
     responsibility for Three Mile Island Unit 1 (TMI-1) (License No. DPR-50)
     and Clinton Power Station (Operating License No. NPF-62) to AmerGen. See
     GPU Nuclear, Inc. (Three Mile Island, Unit No. 1), Order Approving Transfer
     of License and Conforming Amendment, 64 Fed. Reg. 19,202 (April 19, 1999);
     Illinois Power Company (Clinton Power Station), Order Approving Transfer of
     License and Conforming Amendment, 64 Fed. Reg. 67598. AmerGen has also
     recently submitted License Transfer Applications to the NRC for the Nine
     Mile Point Nuclear Station (Operating License Nos. DPR-63 and NPF-69) and
     the Oyster Creek Nuclear Generating Station (Operating License No. DPR-16).
     See Application for Orders and Conforming Administrative Amendments for
     License Transfers for Nine Mile Point Units 1 & 2 (DPR-63 and NPF-69)
     (September 10, 1999); Application for Order and Conforming Administrative
     Amendments for License Transfer for Oyster Creek Station (DPR-16) (November
     5, 1999).

                                      -4-
<PAGE>

II.  PURPOSE OF THE TRANSFERS AND NATURE OF THE TRANSACTION MAKING THE TRANSFERS
     NECESSARY OR DESIRABLE

     The merger of Unicom and PECO, and the coincident transfer of electrical
generating assets to GENCO, are in response to the overall restructuring of the
electric utility industry in the United States, and are in furtherance of
legislation and regulatory orders in Pennsylvania and Illinois to promote
restructuring and competition in the electric industry. The merger of Unicom and
PECO will strengthen the merged companies' T&D capability, will create a
diversified and efficient generating company to provide power for sale in the
restructured competitive electricity market, and will improve the safety,
reliability, and efficiency of all of the functions of the merging companies.
The creation of GENCO will enhance competition in the restructured electric
industry, will separate Exelon's generation activities from regulated T&D
activities, and will enhance the overall financial and operational flexibility
of Exelon.

     The integration of ComEd's and PECO's nuclear organizations will enhance
the continued safe operation of the nuclear facilities currently owned and
operated by ComEd and PECO. ComEd and PECO are among the largest and most
experienced owners and operators of nuclear power plants in the United States.
The nuclear management teams of both companies have demonstrated the ability to
operate their nuclear facilities reliably and safely, and to achieve and sustain
performance improvement. The senior members of these management teams will be
part of the GENCO management team. A Nuclear Group (NG) will be created within
the GENCO to operate the nuclear units. The NG will combine the resources and
expertise of both organizations under one Chief Nuclear Officer of the GENCO NG.
The NG organization will be built on a model enabling it to support all of the
nuclear units operated by GENCO and to

                                      -5-
<PAGE>

maintain high standards and effective programs, processes, management controls,
and best practices.

     In addition, the transfer to GENCO of all of the existing nuclear, fossil
and hydroelectric generating assets of PECO and ComEd, along with the existing
power marketing operations of PECO and ComEd, will provide GENCO with
substantial assets, revenues and other financial resources to pay for any
capital expenditures or operations and maintenance costs required to ensure
nuclear safety.

     As described previously, coincident with the transfer of licenses and
generating assets, PECO and Unicom will combine to form Exelon as of the
"Closing Date," as defined in the Merger Agreement, once all conditions
precedent are satisfied and regulatory approvals are obtained. The Merger
Agreement is included as Enclosure 2. On or about the Closing Date, the
following events will occur:

     (a)  GENCO will assume ownership of the nuclear, fossil and hydroelectric
          generating units currently owned by ComEd and PECO, excluding certain
          switchyard and transmission facilities which will remain with PECO and
          ComEd; GENCO also will assume responsibility for the safe operation,
          maintenance, and eventual decommissioning of the nuclear facilities;

     (b)  PECO's nuclear employees located at the Limerick and Peach Bottom
          nuclear stations, in PECO's nuclear support offices in Wayne,
          Pennsylvania, and other locations, will become employees of GENCO or a
          wholly-owned GENCO subsidiary, and will support GENCO's nuclear
          operations. Similarly, ComEd's nuclear employees at the Braidwood,
          Byron, Dresden, LaSalle, Quad Cities, and

                                      -6-
<PAGE>

          Zion nuclear stations, and ComEd's nuclear support personnel in
          Downers Grove, Illinois, and other locations will become employees of
          GENCO or a wholly-owned GENCO subsidiary and will support GENCO's
          nuclear operations;

     (c)  Interconnection Agreements and/or operating protocols between GENCO
          and PECO, and between GENCO and ComEd, will take effect, ensuring the
          continued availability of offsite power to the nuclear units in
          accordance with all applicable regulatory requirements. GENCO may also
          contract for additional transmission service and for back-up power to
          the sites consistent with NRC requirements.

III. GENERAL CORPORATE INFORMATION REGARDING EXELON AND GENCO


     GENCO will be a wholly-owned subsidiary of Exelon, a corporation formed
under the laws of Pennsylvania resulting from the merger of PECO and Unicom.
Exelon will be a registered holding company subject to Securities and Exchange
Commission (SEC) regulation under the PUHCA. Exelon's headquarters and principal
place of business will be located at 10 South Dearborn Street, Chicago,
Illinois, 60690-3005. Upon the receipt of the necessary regulatory approvals,
Exelon will become a publicly traded company on the New York Stock Exchange,
whose shares will be widely held, initially by the current shareholders of PECO
and Unicom. Exelon will become the parent holding company of GENCO, PECO, ComEd,
and non-utility subsidiaries. The entire Exelon Board of Directors has not yet
been named, but Mr. Corbin A. McNeill, Jr., will become Chairman of the Board of
Directors of Exelon upon completion of the merger of PECO and Unicom, and Mr.
John W. Rowe will be the Chairman of

                                      -7-
<PAGE>

the Executive Committee of Exelon's Board of Directors. Other directors of
Exelon will be selected from the existing Boards of Directors of PECO and
Unicom.


     A.   NAME OF TRANSFEREE

     GENCO

     B.   ADDRESS

     GENCO's headquarters will be located at:

     965 Chesterbrook Boulevard
     Wayne, Pennsylvania 19087-5691


     C.   DESCRIPTION OF BUSINESS OR OCCUPATION


     GENCO will be a corporation formed to own, operate, and acquire nuclear and
other electric generating stations; to engage in the sale of electrical energy;
and to perform other business activities. GENCO will be a wholly-owned corporate
subsidiary of Exelon, a corporation formed under the laws of Pennsylvania.

     Copies of the Unicom and PECO 1996, 1997, and 1998 Annual Reports are
provided in Enclosures 3 and 4.

     D.   ORGANIZATION AND MANAGEMENT

          1.   State of Establishment and Place of Business

     GENCO will be organized under the laws of the Commonwealth of Pennsylvania.
GENCO's principal place of business will be in the Commonwealth of Pennsylvania.

          2.   Board of Directors

     The business and affairs of GENCO will be conducted under the direction of
a Board of Directors, who will be elected by Exelon, the sole shareholder of
GENCO. Mr. Corbin A.

                                      -8-
<PAGE>

McNeill, Jr., will be the Chairman of the Board. Mr. McNeill is a United States
citizen. The parties will provide the names, addresses, and citizenship of the
remaining members of the GENCO Board of Directors once they are identified.
Currently, the intention is for these members to be initially drawn from the
current senior management and/or Boards of Directors of PECO, Unicom, and ComEd.

          3.   Principal Executives and Officers

     The names, titles, addresses, and citizenship of the principal executives
and officers of GENCO are as follows: Mr. Corbin A. McNeill, Jr., will be the
Chief Executive Officer. Mr. McNeill is a U.S. citizen. His address is 965
Chesterbrook Boulevard, Wayne, Pennsylvania 19807-5691. Mr. Oliver D. Kingsley,
Jr., will be President of GENCO's Nuclear Group and Chief Nuclear Officer. Mr.
Kingsley is a U.S. citizen. His address is 1400 Opus Place, Suite 900, Downers
Grove, Illinois 60515. GENCO's Nuclear Group will also have a Chief Operating
Officer, who has yet to be named. The names, addresses, and citizenship of
additional executives and officers will be provided.

     E.   FOREIGN PARTICIPATION

     GENCO will not be owned, dominated, or controlled by foreign interests.
GENCO will be a U.S. corporation that is a wholly-owned subsidiary of Exelon, a
U.S. corporation. Pursuant to the Merger Agreement, Exelon's stock will
initially be held by the current shareholders of PECO and Unicom, and will
continue to be widely held and traded on the New York Stock Exchange.

                                      -9-
<PAGE>

IV.  TECHNICAL QUALIFICATIONS OF GENCO

     A.   OVERVIEW

     The technical qualifications of GENCO to carry out its licensed
responsibilities will meet or exceed the technical qualifications of ComEd's and
PECO's current organizations as described in the Updated Final Safety Analysis
Reports (UFSARs) or the Defueled Safety Analysis Reports (DSARs) for the
facilities involved. Indeed, the proposed merger will bring together two of the
nation's most experienced nuclear management teams, with demonstrated experience
in achieving and sustaining safe and reliable nuclear unit operations.

     When the proposed license transfers and amendments become effective, GENCO
will assume responsibility for, and control over, the operation of the current
ComEd and PECO nuclear plants. Additional plants may be integrated into the NG
in the future. The nuclear organizations of ComEd and PECO will be combined into
one organization -- the NG -- which will be responsible for appropriate
standards, programs, processes, management controls, and support for the nuclear
facilities being transferred to GENCO. Oliver D. Kingsley, Jr., the current
President and Chief Nuclear Officer of ComEd's Nuclear Generation Group, will
become the President and Chief Nuclear Officer (CNO) of the new GENCO NG. PECO's
existing nuclear employees at the Limerick and Peach Bottom sites, and its
nuclear employees at PECO's Wayne, Pennsylvania office and other locations, will
be transferred to GENCO and will become employees of GENCO or a wholly-owned
GENCO subsidiary. Similarly, the nuclear employees of ComEd at its nuclear
sites, its Downers Grove, Illinois office, and other locations will be
transferred to GENCO and will become employees of GENCO or a wholly-owned GENCO
subsidiary. The NG headquarters will be located in the Greater Chicago, Illinois
area (currently

                                      -10-
<PAGE>

Downers Grove, Illinois). Headquarters employees may be deployed at other
locations.

     In light of the size of the combined ComEd and PECO nuclear operating
fleet, an organizational model will be adopted, designed to provide:

     1) a single CNO accountable for overall management, leadership,
        performance, and nuclear safety;

     2) a manageable span of control over the nuclear units by the nuclear
        management team;

     3) implementation of high standards, best practices, effective programs and
        processes, and management controls; and

     4) effective oversight, support, and service functions for the nuclear
        units.

     The NG structure is based upon an overriding philosophy of an engaged
nuclear management team that establishes and enforces high standards and clear
accountabilities, focuses on effective nuclear support, assures the sharing and
implementation of best practices, and effectively exercises oversight of
licensed activities. The NG organization will be managed as a single cohesive
entity, with a common vision, a shared mandate for regulatory compliance and
performance excellence, and consistent standards, programs, practices, and
management controls. Management will apply a philosophy emphasizing operational
excellence, excellent material condition, and the use of a well-defined process
to identify and address performance gaps relative to industry top performers by
monitoring of meaningful performance indicators.

     B.   ORGANIZATIONAL STRUCTURE

     Enclosure 5 is an organizational chart for GENCO illustrating the post-
transfer management structure and reporting relationships for the nuclear
stations that GENCO will own, operate, and manage.

                                      -11-
<PAGE>

     The organization model consists of the NG headquarters functions, Regional
Operating Groups (ROGs), and the nuclear sites. Span of control and geographic
location will be the principal considerations in the makeup of the ROGs.
Additional plants may be integrated into these initial ROGs, or additional ROGs
may be formed, as necessary to ensure effective management controls, support,
and oversight.

     Direct responsibility and accountability for the safe and reliable
operation of the plants will reside in line management, from the Site Vice
Presidents up through the Regional Operating Group Vice Presidents and Chief
Operating Officer, ultimately residing with the CNO. The NG will also include
senior managers and their staffs responsible for the areas of nuclear support
services, nuclear oversight, business operations, human resources, and
administrative functions. The support services will include generation support
(e.g., radiation protection, operations, maintenance), engineering, regulatory
services, and training, which are currently provided by the PECO and ComEd
corporate nuclear organizations. The NG headquarters, in conjunction with the
ROGs, will to the extent practicable implement standardized programs, processes,
and management controls that support the highest level of operation. Support for
the nuclear plants in areas such as regulatory programs, oversight and
assessment of the implementation of these programs, and development of
consistent standards, programs, processes, and practices will be provided by
these organizations.

     As described above, each of the individual facilities will be assigned to a
ROG. The existing onsite organizational structures, responsibilities, and
reporting chains are not being changed as a result of the proposed license
transfers. The onsite management and technical support structure will continue
to conform to the pertinent provisions in each facility's UFSAR,

                                      -12-
<PAGE>

DSAR, or Technical Specifications, as applicable.

     With respect to the permanently shut down units, the onsite staffs will
have responsibility for maintaining the facilities in their long term, safe
storage mode until decontamination and dismantlement begins. The headquarters
support organizations, ROG, and associated operating nuclear unit organizations
will provide additional support.

     C.   MANAGEMENT PERSONNEL AND RESPONSIBILITIES

     As shown in Enclosure 5, the reporting relationships among the principal
GENCO executive officers and managers involved in the management of nuclear
power facilities will be as follows:

     .    The Co-Chief Executive Officer (CEO) of Exelon, Corbin A. McNeill,
          Jr., will serve as the CEO of GENCO. The NG, the other generation
          organizations (i.e., fossil-fueled, hydroelectric), and the power
                         ----
          marketing and trading businesses of GENCO will report to the CEO. The
          CEO will have responsibility for overall GENCO corporate policy.

     .    The Chief Nuclear Officer (CNO) of the NG, Oliver D. Kingsley, Jr.,
          will report to the GENCO CEO. The CNO will be the senior corporate
          executive with all the necessary authority and full responsibility for
          the safe and reliable operation of the nuclear facilities operated by
          GENCO. The CNO will not have any non-nuclear ancillary
          responsibilities.

     .    The Chief Operating Officer (COO) of the NG will report to the CNO.
          The COO of the NG will have responsibility for the overall day-to-day
          operations of the Regional

                                      -13-
<PAGE>

          Operating Groups. The COO position will be filled by an individual who
          possesses senior nuclear management experience.

     .    The Vice Presidents for the ROGs will report to the COO.  The ROG Vice
          Presidents will be responsible and accountable for the safe and
          reliable operation of the nuclear units within their particular ROG.
          The ROG Vice President positions will be filled with individuals who
          possess senior nuclear management experience.

     .    A Vice President, Corporate Nuclear Support, will report to the CNO
          and will have responsibility, in conjunction with the ROGs and the
          COO, for providing support to the sites in defining and implementing
          standards, programs, processes and best practices in areas such as
          engineering, nuclear supply, regulatory services, nuclear fuels,
          generation support (e.g., chemistry, radiation protection), project
                              ----
          management, and information services, and will monitor performance in
          these areas. This Vice President will also manage projects associated
          with those units that are permanently shutdown (i.e., Peach Bottom 1,
                                                          ----
          Dresden 1, and Zion 1 and 2).

     .    A Vice President, Nuclear Oversight and Safety Review, will report
          directly to the CNO and be the executive responsible for ensuring that
          the activities of the oversight organization, including audits,
          quality control, and assessments of the operating organization, are
          carried out. A Nuclear Oversight Director responsible for Quality
          Assurance will be assigned to each ROG. The ROG Nuclear Oversight
          Directors will report directly to the Vice President, Nuclear
          Oversight and Safety Review.

     .    A Vice President, Human Resources and Administration, will report to
          the CNO and will be responsible for human resource policies and
          programs in support of the NG

                                      -14-
<PAGE>

          organization, and for carrying out other administrative duties. This
          Vice President will be responsible for monitoring performance in
          implementing the above.

     .    A Vice President, Business Operations, will report to the CNO and will
          be responsible for NG business management processes, including annual
          and long-term business planning and goals, performance indicator data,
          and operating efficiencies and cost controls. This Vice President will
          be responsible for monitoring performance in implementing the above.

     .    A Site Vice President will be assigned for each operating nuclear
          site. The Site Vice President will report to the Vice President of the
          appropriate ROG. The Site Vice President will be the senior executive
          on site responsible for overall plant nuclear safety and for
          compliance with the NRC operating license. The Site Vice President
          will provide day-to-day direction and management oversight of
          activities associated with the safe and reliable operation of the
          facility. It is expected that the incumbents will remain as the Site
          Vice Presidents once the merger is complete.

     .    Chairpersons of the Nuclear Safety Review Boards (NSRBs) will report
          directly to the CNO and will advise the Vice President, Nuclear
          Oversight and Safety Review. These Chairpersons will be responsible
          for the independent review and audit function for the nuclear units
          operated by GENCO.

     Enclosure 6 includes resumes detailing the specific educational background
and experience for the key GENCO and NG executive management personnel who will
be responsible

                                      -15-
<PAGE>

for the nuclear program. Specifically, resumes are included for Mr. McNeill and
Mr. Kingsley./7/

     D.   TECHNICAL SUPPORT

     The existing technical support organizations for the nuclear stations
currently operated by ComEd and PECO, as described in the UFSAR or DSAR for
those stations, are currently located at the plant sites or at the Wayne,
Pennsylvania or Downers Grove, Illinois, nuclear support offices. These
organizations and personnel will continue to perform technical support functions
for their respective stations on behalf of GENCO. The functions,
responsibilities, and reporting relationships of these organizations, especially
as they relate to activities important to the safe operation of each station,
will continue to be clear and unambiguous.

     Support functions relating to information technology, the Public
Information Centers, and the back-up Emergency Operations Facilities will either
be transferred from PECO/ComEd to GENCO, provided by another organization within
Exelon, provided by contract, or created within GENCO.

     PECO and ComEd will also transfer the assets related to the nuclear units
that GENCO will need to maintain and operate the units in accordance with NRC
requirements. In addition to

_______________________________
7    The personnel at each nuclear station, including senior managers, will be
     essentially unchanged as a result of the merger. However, as is common for
     the management and staff at operating nuclear power plants, individuals
     routinely transfer to other positions within the same company, retire,
     resign, or transfer to positions at other sites. Thus, it is to be expected
     that additional experienced personnel may join the site organizations
     during the period leading up to and after the license transfer. Similarly,
     changes in titles within the organization may occur. Similar changes may be
     expected to occur within the PECO and ComEd corporate nuclear
     organizations. Prior to the transfer, decisions regarding such changes will
     be made by the current licensee, and following the transfer, such decisions
     will be made by GENCO. Any new personnel assigned to the nuclear stations
     will meet all existing qualifications requirements in accordance with the
     licenses and technical specifications of those stations.

                                      -16-
<PAGE>

plant and equipment, necessary books, operating records, operating safety and
maintenance manuals, engineering design plans, documents, blueprints and as-
built plans, specifications, procedures, and similar items will be transferred.
The records that the NRC requires a licensee to maintain are located and
maintained at the nuclear plant sites or in the nuclear support offices and will
be transferred to GENCO. GENCO will also ensure that it acquires custody or
control of, or access to, any important documents needed for operation at the
nuclear plants or compliance with NRC requirements presently owned by PECO or
ComEd that may currently be in other locations. Further, any necessary contracts
with Architect Engineers, Nuclear Steam Supply System (NSSS) suppliers, and
other major vendors, will be assigned to GENCO, if possible, or other
appropriate contracts will be obtained by GENCO on a timely basis. Other
contracts and contractor relationships relating to these nuclear facilities will
also be assigned or transferred to GENCO.

     E.   CONCLUSIONS

     The information presented above describes the organizational groups, key
executive positions, reporting relationships, and responsibilities that will
exist in the GENCO NG for accomplishing the activities associated with the
support and operation of the nuclear units to be owned and operated by GENCO.
Clear management control and effective lines of authority and communications
will exist between the organizational units involved in the management,
operation, and support of the nuclear units.  Breadth and level of experience,
and availability of personnel off site, will exist to provide support for
operation of the facilities.  Moreover, following the proposed merger, the
nuclear onsite organizations and staff will be essentially the same as currently
approved by the NRC and as reflected in the governing UFSARs, DSARs and

                                      -17-
<PAGE>

Technical Specifications. Accordingly, GENCO will be technically qualified to
become the licensee for the nuclear units which are the subject of the proposed
license transfers.

V.   FINANCIAL QUALIFICATIONS OF GENCO

     A.   PROJECTED OPERATING REVENUES AND OPERATING COSTS

     GENCO will own, operate, and market power from nuclear, fossil, and
hydroelectric generating units. GENCO will sell electricity to electric utility
affiliates and will market electricity pursuant to rate tariffs approved by the
Federal Energy Regulatory Commission.  GENCO will also possess the financial
qualifications to meet the applicable requirements of 10 CFR 50.33(f) for non-
electric utility licensees.  Specifically, GENCO will possess, or will have
reasonable assurance of obtaining, the funds necessary to cover the estimated
operating costs for the period of the facility licenses in accordance with 10
CFR 50.33(f)(2).

     ComEd and PECO have prepared a Projected Income Statement for GENCO
operations from January 1, 2001 through December 31, 2005.  The GENCO Projected
Income Statement is included in Enclosures 7 and 7P./8/  In accordance with
the NRC Standard Review Plan on Power Reactor Licensee Financial Qualifications
and Decommissioning Funding Assurance (NUREG-1557, Rev. 1) (SRP), this Projected
Income Statement provides the estimated total annual operating costs for the
nuclear facilities to be owned by GENCO.  The source of funds to cover these
operating costs will be operating revenues.  The Projected Income Statement
shows that the

__________________________________
 8   Enclosure 7P is separately bound in a proprietary Addendum to this
     Application. The parties request that Enclosure 7P be withheld from public
     disclosure pursuant to 10 CFR 2.790, since it contains confidential
     commercial or financial information, as described in the Affidavit of
     Gerald R. Rainey, provided as Enclosure 9. A redacted version, suitable for
     public disclosure, is provided in Enclosure 7.

                                      -18-
<PAGE>

anticipated revenues from sales of capacity and energy by GENCO provide
reasonable assurance of adequate funds to meet GENCO's ongoing operating
expenses. The projected revenues from the sale of electricity from the nuclear
units alone are expected to provide sufficient income to cover the total
operating costs of GENCO's nuclear units. In addition, there will be substantial
additional revenues available from sales of electricity from the more than 5000
MWe of capacity in the fossil-fired and hydroelectric generating stations to be
owned and operated by GENCO, as well as revenues from power marketing and other
business operations.

     GENCO's projected assets and revenue streams are more than sufficient to
cover its share of costs that might be associated with a six-month shutdown of
one or more of the nuclear units it will own.  The GENCO Projected Income
Statement and Projected Opening Balance Sheet provided in Enclosure 7P
demonstrates that GENCO will have total assets exceeding $ 9 billion, and annual
gross revenues of more than $ 6 billion. Furthermore, based upon the financial
stature of the company, GENCO is expected to have an investment-grade bond
rating, which will enable it to raise additional funds as necessary.
Accordingly, GENCO will fully meet or exceed the financial qualifications
requirements of 10 CFR 50.33 (f) and the guidelines of the SRP.

                                      -19-
<PAGE>

     B.   DECOMMISSIONING FUNDING ASSURANCE

     In accordance with 10 CFR 50.75(b), GENCO will maintain financial assurance
for decommissioning funding that meets the requirements of 10 CFR 50.75(e), by
maintaining external sinking funds for each of the units. The mechanism for
obtaining funds for future contributions to the external sinking funds differs
between Illinois and Pennsylvania, depending upon each state's restructuring
legislation./9/

     PECO Energy, as a rate-regulated electric utility, currently maintains
Nuclear Decommissioning Trusts (NDTs) for its interests in each of the Peach
Bottom, Limerick and Salem units. The NDTs utilize the external sinking fund
financial assurance mechanism provided in 10 CFR 50.75(e)(1)(ii). On March 31,
1999 and August 4, 1999, PECO Nuclear (a unit of PECO) submitted information to
the NRC regarding the status of the NDTs. These existing NDTs will be
transferred to GENCO, which will continue to utilize the external sinking fund
method, with periodic deposits to the funds over the operating life of the
units.

     Pursuant to the restructuring legislation in Pennsylvania, and the Nuclear
Decommissioning Cost Adjustment Clause (NDCA) established by the Pennsylvania
Public Utilities Commission (PaPUC) (Docket No. R-00973953), PECO has been
authorized to recover the decommissioning costs for its interests in the Peach
Bottom, Salem and Limerick units pursuant to non-bypassable charge mechanisms.
Following the merger, PECO will continue to recover these costs through these
mechanisms and will be contractually obligated to pay these amounts to GENCO.
Thus, GENCO will have a source of revenues for decommissioning the

____________________________
 9   Certain private letter rulings may be required from the Internal Revenue
     Service in connection with these matters. This is discussed in Section X.

                                      -20-
<PAGE>

former PECO units that is a "non-bypassable charge" within the meaning of 10 CFR
50.75(e)(1)(ii)(B).

VI.  ANTITRUST CONSIDERATIONS

     The NRC has determined that antitrust review of post-operating license
transfers is not required by the Atomic Energy Act, and that from a policy, as
well as legal perspective, such a review should not be conducted.  See Kansas
                                                                   ---
Gas and Electric Company (Wolf Creek Generating Station, Unit 1), CLI-99-19,
June 18, 1999.


VII. RESTRICTED DATA AND CLASSIFIED NATIONAL SECURITY INFORMATION

     This application does not contain any Restricted Data or classified
National Security Information, and it is not expected that any such information
will become involved in the licensed activities.  However, in the event that
such information does become involved, and in accordance with 10 CFR 50.37, PECO
agrees that it will appropriately safeguard such information and will not permit
any individual to have access to such information until the individual has been
appropriately approved for such access under the provisions of 10 CFR Part 25
and/or Part 95.


VIII.  ENVIRONMENTAL CONSIDERATIONS

     This license transfer application and accompanying administrative
amendments are exempt from environmental review, because they fall within the
categorical exclusion appearing at 10 CFR 51.22(c)(21) for which neither an
Environmental Assessment nor an Environmental

                                      -21-
<PAGE>

Impact Statement is required. Moreover, the proposed license transfer and
conforming amendments do not involve any amendment to the license or other
change that would directly affect the actual operation of the facilities
involved in any substantive way. The proposed transfer and amendments to the
license do not involve an increase in the amounts, or a change in the types, of
any radiological effluents that may be allowed to be released off-site, and do
not involve any increase in the amounts or change in the types of any non-
radiological effluents that may be released off-site. Further, no increase in
the individual or cumulative occupational radiation exposure is expected.


IX.  ADDITIONAL INFORMATION REGARDING SPECIFIC REGULATORY REQUIREMENTS, PLANS,
     PROGRAMS AND PROCEDURES

     A.   OFFSITE POWER CONSIDERATIONS

     The physical systems for supplying offsite power to the nuclear plants will
be unchanged as a result of the transfers.  However, as a result of the merger
and the transfer of the nuclear plants, operation of the nuclear plants by GENCO
will be separated from the operation of the transmission and distribution
systems by ComEd and PECO.  Accordingly, by closing on the restructuring
transactions, interconnection agreements and/or operating protocols will be
established between GENCO and the T&D entities addressing offsite power to the
nuclear sites, including issues such as notifications, maintenance of the
transmission facilities, coordination of switching voltage levels, and emergency
power restoration.  The existing transmission facilities, along with the
proposed interconnection agreements and/or operating protocols, will assure that
the sources of offsite power to the nuclear plants will continue to be reliable
and in full compliance with 10 CFR 50, Appendix A, General Design Criterion 17.

                                      -22-
<PAGE>

     Current arrangements for off-site power for the Salem facility, which is
operated by Public Service Electric & Gas (PSE&G), will not be affected by the
transfer of PECO's non-operating license interest to GENCO.

     B.   EMERGENCY PLANNING

     Upon transfer of the licenses, GENCO will assume authority and
responsibility for functions necessary to fulfill the emergency planning
requirements specified in 10 CFR 50.47(b) and Part 50, Appendix E. Either before
or after the transfer, any changes to the emergency plans for the facilities
will be made in accordance with 10 CFR 50.54(q). Neither PECO nor ComEd
anticipates any changes that will result in a decrease in the effectiveness of
the plans.

     No substantive changes are anticipated to the existing emergency
organizations for the nuclear plants. However, certain functions may be
performed by ComEd, PECO, or other GENCO corporate affiliates pursuant to an
appropriate services agreement. The current off-site emergency facilities and
equipment will be transferred or leased to GENCO. Existing agreements for
support from organizations and agencies not affiliated with PECO or ComEd will
be assigned to GENCO.

     The transfer to GENCO of PECO's ownership interest in the Salem nuclear
station, which is operated by PSE&G, will not affect emergency planning for
Salem.

     C.   EXCLUSION AREAS

     By virtue of the transfer of ownership of the nuclear plants and transfer
of the NRC licenses to GENCO, ComEd and PECO will transfer to GENCO the
authority to determine and control all activities within the exclusion areas for
the nuclear plants to the extent required by 10 CFR 100.

                                      -23-
<PAGE>

     GENCO is not acquiring certain switchyard and other transmission assets
owned by ComEd and PECO, which are located within the exclusion area. These T&D
facilities will be retained by ComEd or PECO, as the case may be. However, GENCO
will have authority, with respect to ComEd's or PECO's ownership of and access
to switchyard and transmission facilities, to determine and control all
activities in the exclusion area, including exclusion of personnel and property
from the area, to the extent necessary to comply with applicable NRC
requirements. This authority will be confirmed in the interconnection agreements
and/or operating protocols for these switchyard and transmission facilities.

     The transfer of PECO's non-operating interest in Salem to GENCO will have
no impact on PSE&G's control of the Salem exclusion area.

     D.   SECURITY

     Upon transfer of the nuclear units, GENCO will assume authority and
responsibility for the functions necessary to fulfill the security requirements
specified in 10 CFR 73. Any changes made to the existing, NRC-approved physical
security, guard training and qualification, and safeguards contingency plans
will be made in accordance with 10 CFR 50.54(p). No changes are anticipated that
will result in a decrease in the effectiveness of the plans.

     No material changes are anticipated to the existing security organization.
Existing agreements for support from organizations and agencies not affiliated
with PECO or ComEd will be assigned to GENCO.

     The transfer of PECO's non-operating interest in Salem to GENCO will not
affect security at Salem, which is operated by PSE&G.

                                      -24-
<PAGE>

     E.   QUALITY ASSURANCE PROGRAM

     Upon the transfer of the nuclear units, GENCO will assume authority and
responsibility for the functions necessary to fulfill the quality assurance (QA)
requirements of 10 CFR 50, Appendix B. Any changes made to the existing Peach
Bottom and Limerick QA Program Descriptions (QAPD) implemented by PECO, or to
the ComEd Quality Assurance Topical Report (QATR), to reflect the transfer and
new NG organization, will be made in accordance with 10 CFR 50.54(a). No changes
are anticipated that will result in a reduction in the commitments in the QAPD
or QATR previously accepted by the NRC. No material changes to the existing QA
organizations, other than the NG reporting relationships described above, are
anticipated.

     The transfer of PECO's non-operating interest in Salem, which is operated
by PSE&G, will not affect the Salem Quality Assurance Program.

     F.   UPDATED FINAL SAFETY ANALYSIS REPORTS

     With the exception of areas discussed in this application, the proposed
license transfers and conforming administrative amendments will not invalidate
technical or design information presently appearing in the UFSARs or DSARs for
the nuclear units, and licensing basis commitments will remain in effect. UFSAR
or DSAR changes necessary to reflect the proposed transfers and conforming
administrative license amendments will be made in accordance with 10 CFR
50.71(e), following NRC approval of the proposed transfers.

     G.   TRAINING

     The training centers and simulator facilities operated by ComEd and PECO,
and the staff currently working at these facilities, will be transferred to
GENCO or to a wholly-owned

                                      -25-
<PAGE>

GENCO subsidiary. The proposed license transfers will not impact compliance with
the operator re-qualification program requirements of 10 CFR 50.54 and related
sections, nor maintenance of the INPO accreditations for licensed and non-
licensed training. Upon transfer of the licenses, GENCO will assume
responsibility for implementation of present training programs. Changes to the
programs to reflect the transfers and new organization will not decrease the
scope of the approved operator re-qualification program without the specific
authorization of the NRC in accordance with 10 CFR 50.54(i).

     The transfer of PECO's non-operating license interest in Salem, which is
operated by PSE&G, will have no effect on Salem training programs.

     H.   PRICE-ANDERSON INDEMNITY AND NUCLEAR INSURANCE

     In accordance with 10 CFR 140.92, Art. IV.2, PECO requests NRC approval of
the assignment and transfer of the Price Anderson indemnity agreements for all
of the nuclear units involved to GENCO, upon consent to the proposed license
transfers. Prior to the license transfers, GENCO will obtain all required
nuclear property damage insurance pursuant to 10 CFR 50.54(w) and nuclear
liability insurance pursuant to 10 CFR 140. GENCO's Projected Income Statement
and expected investment-grade rating, discussed above, provide adequate
assurance that, pursuant to the requirements of 10 CFR 140.21(e)-(f), GENCO
would be able to pay its share of deferred premiums in the amount of $ 10
million per nuclear unit.

     I.   STANDARD CONTRACT FOR DISPOSAL OF SPENT NUCLEAR FUEL

     Upon completion of the merger, GENCO will assume title to and
responsibility for storage and disposal of spent nuclear fuel located at all of
the nuclear plants operated by PECO

                                      -26-
<PAGE>

and ComEd. PECO and ComEd will assign, and GENCO will assume, PECO's and ComEd's
rights and obligations under the Standard Contract with the Department of
Energy.


X.   OTHER REQUIRED REGULATORY APPROVALS

     The proposed merger and transfers are subject to the approval of the
Pennsylvania Public Utility Commission and notification to the Illinois Commerce
Commission. Additionally, Exelon will become a registered holding company
subject to approval and regulation by the Securities Exchange Commission under
the Public Utility Holding Company Act of 1935, as amended. PECO and ComEd will
also request Federal Energy Regulatory Commission (FERC) approval for the
transfer of jurisdictional assets pursuant to Section 203 of the Federal Power
Act, and acceptance of Interconnection Agreements and other rate schedules under
Section 205 of the Federal Power Act. GENCO will also apply for FERC
authorization under Section 205 of the Federal Power Act to sell electric
generating capacity and energy at wholesale and market-based rates.

     PECO and ComEd will also file notifications with the Federal Trade
Commission and the Department of Justice that are required in connection with
the merger under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as
amended (HSR Act), and applicable rules and regulations. Any additional
information required will be supplied with a goal towards the termination or
expiration of the HSR Act waiting period at the earliest possible date after the
date of filing.

     Certain rulings by the Internal Revenue Service under the Internal Revenue
Code may also be necessary to assure that the current PECO and ComEd
decommissioning funds

                                      -27-
<PAGE>

accumulated in qualified and non-qualified decommissioning trust funds may be
transferred by PECO and ComEd to GENCO on a tax-efficient basis. To the extent
that satisfactory private letter rulings or other tax relief are not timely
obtained, the parties will update the NRC on alternative plans for
decommissioning funding assurance.


XI.  EFFECTIVE DATE

     PECO requests that the NRC consent to the proposed transfers as promptly as
possible, and in any event before June 30, 2000. This date is important because
the benefits of the PECO/Unicom merger, including anticipated benefits to the
safety, reliability, and efficiency of operation of the nuclear plants to be
owned and operated by GENCO, and the benefits to competition flowing from the
unbundling of PECO's and ComEd's utility functions, will not become available
until the transfers have been completed. The parties request that the NRC's
consent be immediately effective upon issuance, and that it allow the transfers
at any time through twelve months following the date of approval (or such later
date as may be permitted by the NRC), to allow time for receipt of regulatory
approvals, completion of administrative activities associated with the
transaction, as well as contingencies.

                                      -28-
<PAGE>

XII. CONCLUSION

     Based upon the foregoing information, GENCO will be qualified to be an
owner and the licensed operator of the Peach Bottom and Limerick nuclear
facilities.  GENCO will also be qualified to be the non-operating licensee co-
owner of the Salem facility.  The requested license transfers are consistent
with applicable provisions of law, regulations, and the orders of the NRC.
Accordingly, PECO respectfully requests that NRC issue an order approving the
license transfers and issue the associated conforming administrative license
amendments as requested in this submittal.

                                      -29-
<PAGE>

                                  Enclosure 1

                    Proposed Corporate Structure of Exelon

                          and Principal Subsidiaries


                             [CHART APPEARS HERE]

1. Entity is a Pennsylvania corporation.
2. Entity is currently a vertically integrated electric utility which includes
transmission and distribution (T&D), and nuclear generating assets. On December
15, 1999, it disposed of its fossil assets in a transaction separate from the
merger. The nuclear generating assets of this entity will be transferred to
GENCO. This entity may continue to hold some or all of the subsidiaries it
currently has.
3. Entity has several subsidiary or joint venture operations including Unicom
Energy, an alternative retail electric supplier (ARES).  This entity may
eventually hold interest in the current "unregulated" ventures of PECO Energy.
4. Entity is a current first tier subsidiary of Unicom Corporation which
conducts no activity and has no subsidiary operations.
5. Entity or entities which will own the nuclear and fossil generating assets of
PECO, will house the Power Team (i.e., wholesale marketing organization) and
will own the nuclear generating units of ComEd.  Group will also include the
Conowingo Project entities and the 50% interest in AmerGen Energy Company, LLC.
6. Entity will be newly formed as a Service Company generally providing
administrative and general services to all entities within the group.
7. Entity is the current publicly traded parent company of the PECO group.  It
is currently a vertically integrated electric and gas utility which includes
T&D, fossil and nuclear generating assets, wholesale power marketing and non-
regulated activities.  In conjunction with the merger, this entity will
disaggregate some operations and focus its operations on the southeastern
Pennsylvania territory T&D business.  This entity may continue to hold some of
its current subsidiaries.
<PAGE>

                                  ENCLOSURE 5
                                  -----------
                                     GENCO
                                 Nuclear Group
                           Organizational Structure


                             [CHART APPEARS HERE]


Note:  Additional regional operating groups may be formed if plants are added or
       for current plants. Plants may also be moved within regional operating
       groups. These organizational changes may be made in order to ensure
       effective management control, support, and oversight.

<PAGE>

                                                                     Exhibit I-1


             List and Description of Subsidiaries and Investments
                             Of Unicom Corporation
                    (Other than "Public-Utility" Companies)

                               As of March, 2000

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
           Name              Jurisdiction                       Description                                   Authority
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                          <C>           <C>                                                      <C>
    Subsidiaries of
       Unicom
- ------------------------------------------------------------------------------------------------------------------------------------
  Unicom Enterprises Inc       Illinois    First tier holding company for Unicom non-regulated      See below
                                           investments
- ------------------------------------------------------------------------------------------------------------------------------------
Unicom Mechanical Services     Delaware    design, build, test, repair, distribute products and     Rule 58 (b)(1) (ii) and (vii);
Inc                                        and finance heating, cooling, ventilation and            CINergy HCAR 35-26662
                                           industrial process systems, and high and low voltage
                                           electrical power systems for commercial and
                                           industrial customers

- ------------------------------------------------------------------------------------------------------------------------------------
V. A. Smith Company            Illinois    Subsidiary of Unicom Mechanical Services Inc.            See Unicom Mechanical Services
                                                                                                    Inc
- ------------------------------------------------------------------------------------------------------------------------------------
UMS Acquisition Corp           Delaware    Subsidiary of Unicom Mechanical Services Inc             See Unicom Mechanical Services
                                                                                                    Inc
- ------------------------------------------------------------------------------------------------------------------------------------
KHB Inc                        Illinois    Subsidiary of UMS Acquisition Corp                       See Unicom Mechanical Services
                                                                                                    Inc
- ------------------------------------------------------------------------------------------------------------------------------------
MMCD, Inc                      Illinois    Subsidiary of UMS Acquisition Corp                       See Unicom Mechanical Services
                                                                                                    Inc
- ------------------------------------------------------------------------------------------------------------------------------------
Access Systems Inc.            Illinois    Environmental control; building automation and           See Unicom Mechanical Services
                                           security systems for commercial and industrial           Inc
                                           customers
- ------------------------------------------------------------------------------------------------------------------------------------
Hoekstra Building              Illinois    Environmental control; building automation and           See Unicom Mechanical Services
Automation, Inc                            security systems for commercial and industrial           Inc
                                           customers
- ------------------------------------------------------------------------------------------------------------------------------------
MMSD, Inc                      Illinois    Subsidiary of UMS Acquisition Corp                       See Unicom Mechanical Services
                                                                                                    Inc
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       1
<PAGE>

<TABLE>
- -----------------------------------------------------------------------------------------------------------------------------
<S>                          <C>           <C>                                        <C>
Unicom Power Holdings Inc    Delaware       owns electric power production            Rule 58 (b)(1) (vii) and (viii)
                                            facilities; full service developer
                                            engaged in the design, construction,
                                            financing, ownership and operation of
                                            energy production facilities
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Investment Inc.       Illinois       formed to receive the proceeds from the   Passive tax advantaged investment in
                                            fossil sale pending eventual use of       arrangement not involving a public
                                            those funds.                              utility company.  No-action request
                                                                                      pending with the Commission.
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Energy Inc            Delaware       markets electricity and natural gas       Rule 58 (b)(1) (v)
                                            where retail competition is established
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Energy Ohio, Inc.     Delaware       markets natural gas where retail          Rule 58 (b)(1) (v)
                                            competition is established
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Energy Services Inc.  Illinois       distributed generation including          Rule 58 (b)(1) (i), (vii) and (viii)
                                            microturbine and similar technology;
                                            turnkey energy and operational
                                            solutions; demand-side and supply side
                                            solutions; energy performance
                                            contracting and guaranties; custom
                                            lighting solutions; financing related
                                            thereto

                                            Unicom Distributed Energy division
                                            sells, finances, installs and maintains
                                            on-site generation and cogeneration

                                            Unicom Active Energy Management
                                            division provides a suite of energy
                                            information products and related
                                            consultative services (forecast daily
                                            energy usage and track historical
                                            energy consumption)

                                            eQuater provides energy information
                                            services
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Gas Services LLC      Delaware       Markets natural gas where retail          Rule 58 (b)(1) (v)
                                            competition is established (To be
                                            merged with Unicom Energy Inc)
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Power Marketing Inc.  Delaware       wholesale electricity and natural gas     Rule 58 (b)(1)(v)
                                            marketing
- -----------------------------------------------------------------------------------------------------------------------------
Unicom HealthCare            Illinois       management of SFAS 106 contingent
Management Inc.                             medical plan liabilities
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       2
<PAGE>

<TABLE>
<S>                          <C>           <C>                                        <C>
- -----------------------------------------------------------------------------------------------------------------------------
UT Holdings Inc.             Delaware       district energy company; operates         Rule 58 (b)(1)(vi) and (vii)
                                            district cooling systems; district
                                            energy systems (chilled water, steam
                                            and/or hot water); construction and
                                            operating services for central energy
                                            plan
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Thermal Development   Delaware       Subsidiary of UT Holdings Inc.            See UT Holdings Inc.
Inc
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Thermal               Illinois       Subsidiary of UT Holdings Inc.            See UT Holdings Inc.
Technologies Inc
- ----------------------------------------------------------------------------------------------------------------------------
Unicom Thermal               Delaware       Subsidiary of UT Holdings Inc.            See UT Holdings Inc.
Technologies Boston Inc.
- -----------------------------------------------------------------------------------------------------------------------------
Northwind Boston LLC         Massachusetts  25% held by Unicom Thermal Technologies   See UT Holdings Inc
                                            Boston Inc.
- -----------------------------------------------------------------------------------------------------------------------------
Unicom Thermal               Delaware       Subsidiary of UT Holdings Inc             See UT Holdings Inc
Technologies Houston Inc.
- -----------------------------------------------------------------------------------------------------------------------------
Northwind Houston LLC        Delaware       25% held by Unicom Thermal Technologies   See UT Holdings Inc
                                            Houston Inc
- -----------------------------------------------------------------------------------------------------------------------------
Northwind Houston LP         Delaware       25% held by Northwind Houston LLC         See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------
Unicom Thermal               Delaware       Subsidiary of UT Holdings Inc (operates   See UT Holdings Inc
Technologies North                          in Canada)
America Inc.
- ----------------------------------------------------------------------------------------------------------------------------
Northwind Thermal            New Brunswick  Subsidiary of Unicom Thermal              See UT Holdings Inc
Technologies Canada Inc.                    Technologies North America Inc.
- ----------------------------------------------------------------------------------------------------------------------------
Unicom Thermal               New Brunswick  Subsidiary of Northwind Thermal           See UT Holdings Inc
Technologies Inc.                           Technologies Canada Inc.
- ----------------------------------------------------------------------------------------------------------------------------
UTT National Power Inc.      Illinois       Subsidiary of UT Holdings Inc             See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------
Northwind Midway LLC         Delaware       Subsidiary of UTT National Power Inc.     See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------
UTT Nevada Inc.              Nevada         Subsidiary of UT Holdings Inc             See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------
Northwind Aladdin LLC (75%)  Nevada         Subsidiary of UTT Nevada Inc.             See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------
Northwind Las Vegas LLC      Nevada         Subsidiary of UTT Nevada Inc.             See UT Holdings Inc
(50%)
- ----------------------------------------------------------------------------------------------------------------------------
Northwind Chicago LLC        Delaware       Subsidiary of UT Holdings Inc.            See UT Holdings Inc
(100%)
- ----------------------------------------------------------------------------------------------------------------------------
UTT Phoenix, Inc.            Delaware       Subsidiary of UT Holdings Inc             See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       3
<PAGE>

<TABLE>
<S>                          <C>           <C>                                        <C>
- ----------------------------------------------------------------------------------------------------------------------------
Northwind Arizona            Delaware         Subsidiary of UTT Phoenix Inc.               See UT Holdings Inc
Development LLC (50%)
- ----------------------------------------------------------------------------------------------------------------------------------
Northwind Phoenix LLC (50%)  Delaware         Subsidiary of UTT Phoenix Inc.               See UT Holdings Inc
- ----------------------------------------------------------------------------------------------------------------------------------
Unicom Resources Inc.        Illinois         [inactive]
- ----------------------------------------------------------------------------------------------------------------------------------
Unicom Assurance Company     Bermuda          A direct sub of Unicom.                      Columbia Insurance Corporation, Ltd.
                                                                                           -----------------------------------
Limited                                       Insurance captive                            HCAR No. 27051
- ----------------------------------------------------------------------------------------------------------------------------------


- ----------------------------------------------------------------------------------------------------------------------------------
   Subsidiaries of
    Commonwealth
       Edison
- ----------------------------------------------------------------------------------------------------------------------------------
ComEd Financing I            Delaware       Special purpose financing vehicle              New Century Energies, HCAR No. 26748
- ----------------------------------------------------------------------------------------------------------------------------------
ComEd Financing II           Delaware       Special purpose financing vehicle              New Century Energies, HCAR No. 26748
- ----------------------------------------------------------------------------------------------------------------------------------
ComEd Funding, LLC           Delaware       Special purpose financing vehicle              New Century Energies, HCAR No. 26748
- ----------------------------------------------------------------------------------------------------------------------------------
ComEd Transitional Funding   Delaware       Special purpose financing vehicle              New Century Energies, HCAR No. 26748
 Trust
- ----------------------------------------------------------------------------------------------------------------------------------
Commonwealth Research        Illinois       Engaged in research, development and testing
 Corporation                                activities to ensure a safe, economical and
                                            adequate electric power supply for ComEd;
                                            holds certain energy related patents
- ----------------------------------------------------------------------------------------------------------------------------------
Concomber Ltd                Bermuda        Captive insurance company                      Columbia Insurance Corporation, Ltd.
                                                                                           -----------------------------------
                                                                                           HCAR No. 27051
- ----------------------------------------------------------------------------------------------------------------------------------
Edison Development Company   Delaware       Holds real estate; real estate joint
                                            ventures.
- ----------------------------------------------------------------------------------------------------------------------------------
Edison Development Canada    Canada         Exploration, development, mining and milling   Rule 58 (b)(1)(ix)
 Inc.                                       of uranium ore
- ----------------------------------------------------------------------------------------------------------------------------------
Edison Finance Partnership   Ontario        Intercompany financing with Edison             New Century Energies, HCAR No. 26748
                                            Development Canada and Northwind Thermal
                                            Technologies Canada
- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       4
<PAGE>

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------------------------
        Non-subsidiary investments                     Percentage ownership               Description              Authority
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                                                    <C>                                <C>                      <C>
Apeco Corporation (Common Stock - $.50 Par Value        less than 5%
- ----------------------------------------------------------------------------------------------------------------------------------
Chicago Community Ventures, Inc.                        less than 5%                       enterprise small         WPL Holdings,
                                                                                           business investment      ------------
                                                                                           company                  HCAR
                                                                                                                    35-26856
- ----------------------------------------------------------------------------------------------------------------------------------
Chicago Equity Fund                                     less than 5%                       funds rehab glow and     WPL Holdings,
                                                                                           moderate income housing  ------------
                                                                                                                    HCAR
                                                                                                                    35-26856;
                                                                                                                    Ameren
                                                                                                                    ------
                                                                                                                    HCAR
                                                                                                                    35-26809
- ----------------------------------------------------------------------------------------------------------------------------------
Dearborn Park Corporation                               less than 5%
- ----------------------------------------------------------------------------------------------------------------------------------
I.L.P. Fund C/O Chicago Capital Fund                    less than 5%                       venture capital          WPL Holdings,
                                                                                           small business fund      ------------
                                                                                                                    HCAR
                                                                                                                    35-26856
- ----------------------------------------------------------------------------------------------------------------------------------
Illinois Venture Fund (Unibanc Trust)                   less than 5%                       venture capital          WPL Holdings,
                                                                                           new technology           ------------
                                                                                           in Illinois              HCAR
                                                                                                                    35-26856
- ----------------------------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       5

<PAGE>

                                                                     Exhibit I-2

             List and Description of Subsidiaries and Investments
                            Of PECO Energy Company
                    (Other than "Public-Utility" Companies)

                               As of March, 2000

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
           Name                Jurisdiction                Description                                    Authority
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                           <C>               <C>                                            <C>
   Subsidiaries of PECO
- ------------------------------------------------------------------------------------------------------------------------------------
PECO Energy Capital Corp.                       financing vehicle for issuance of              New Century Energies, HCAR No. 26748
(PECC), wholly owned by                         cumulative income preferred securities
PECO
- ------------------------------------------------------------------------------------------------------------------------------------
PECO Energy Capital, L.P.      Delaware         issue cumulative income preferred              New Century Energies, HCAR No. 26748
                                                securities and lend the proceeds thereof
                                                to PECO
- ------------------------------------------------------------------------------------------------------------------------------------
PECC Trust 1                                    trust created for the issuance of a retired    New Century Energies, HCAR No. 26748
                                                series of cumulative preferred securities
                                                (inactive)
- ------------------------------------------------------------------------------------------------------------------------------------
PECC Trust 2                                    trust created for the issuance of a            New Century Energies, HCAR No. 26748
                                                specific series of cumulative preferred
                                                securities
- ------------------------------------------------------------------------------------------------------------------------------------
PECC Trust 3                                    trust created for the issuance of a            New Century Energies, HCAR No. 26748
                                                specific series of cumulative preferred
                                                securities
- ------------------------------------------------------------------------------------------------------------------------------------
PECO Energy Transition                          securitization of stranded costs; in March     New Century Energies, HCAR No. 26748
Trust (PETT)                                    1999 PECO Energy issued $4 billion of
                                                transition bonds through PETT
- ------------------------------------------------------------------------------------------------------------------------------------
ATNP Finance Company,          Delaware         wholly owned by PEWI, was formed to manage     New Century Energies, HCAR No. 26748
                                                the net securitization proceeds to maximize
                                                the return thereon
- ------------------------------------------------------------------------------------------------------------------------------------
PEC Financial Services,      Pennsylvania       manages the net securitization proceeds to     New Century Energies, HCAR No. 26748
LLC (PEC)                                       maximize the return thereon
- ------------------------------------------------------------------------------------------------------------------------------------
Eastern Pennsylvania                            hold interests in subsidiaries conducting      PECO is in the process of winding-up
Development Company                             unregulated real estate and complementary      or selling-off each of its non-
(EPDC), wholly owned by                         operations                                     utility real estate businesses.
PECO                                                                                           Exelon requests that the Commission
                                                                                               reserve jurisdiction for three years
                                                                                               subsequent to the
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       1
<PAGE>

<TABLE>
<S>                                             <C>                                            <C>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                               date of any order in this matter. See
                                                                                                                                 ---
                                                                                               CINergy Corp., Holding Co. Act
                                                                                               -------------
                                                                                               Release No. 26146 (October 21, 1994).
                                                                                               Exelon will make a filing with the
                                                                                               Commission as soon as it has
                                                                                               dissolved or sold off the last of the
                                                                                               identified entities.
- ------------------------------------------------------------------------------------------------------------------------------------
Adwin Realty Company                            real estate development and management         See discussion under EDPC
(ARCO), wholly owned by                         company
EPDC
- ------------------------------------------------------------------------------------------------------------------------------------
Route 213 Enterprises,                          real estate development and management         See discussion under EDPC
Inc., wholly owned by ARCO                      company (currently being dissolved)
- ------------------------------------------------------------------------------------------------------------------------------------
Energy Performance                              specializes in the development, financing,     Rule 58(b)(1)(i),(vii)
Services, Inc., 10%                             implementation and construction of energy
interest held by EPDC                           efficiency projects for large industrial,
                                                institutional, commercial and governmental
                                                facilities
- ------------------------------------------------------------------------------------------------------------------------------------
Adwin Equipment Company,                        leases equipment for co-generation and         Rule 58 (b)(1)(vi), (viii)
wholly owned by PECO                            related activities
- ------------------------------------------------------------------------------------------------------------------------------------
PECO Wireless, LLC (PEWI)                       wholly owned LLC which serves as a holding     New Century Energies Holding Co. Act
                                                company for financing subs for                 Release No. 26748, supports utility
                                                securitization transactions                    operations.
- ------------------------------------------------------------------------------------------------------------------------------------
AT&T Wireless PCS of                            joint venture with AT&T Wireless Services      Section 34 of the Act
Philadelphia, LLC, 49%                          formed to offer personal communications
LLC membership interest                         services in the Philadelphia Major Trading
held by PEWI                                    Area (MTA); an FCC license holder
- ------------------------------------------------------------------------------------------------------------------------------------
PECO Hyperion                                   competitive local exchange carrier that        Section 34 of the Act
Telecommunications (PHT),                       provides services such as local dial tone,
PECO is a 50% partner                           long distance, Internet service and
                                                point-to-point (voice and data)
                                                communications
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       2
<PAGE>

<TABLE>
<S>                                             <C>                                            <C>
- ------------------------------------------------------------------------------------------------------------------------------------
AmerGen Energy Company,                         joint venture with British Energy to acquire   EWG
L.L.C., PECO is a 50%                           nuclear and complementary electric generating
owner                                           assets
- ------------------------------------------------------------------------------------------------------------------------------------
AmerGen Vermont, LLC (AVT)                      Formed to own and operate nuclear generating   EWG
                                                facility in Vermont
- ------------------------------------------------------------------------------------------------------------------------------------
Adwin (Schuykill)                               inactive
Cogeneration, Inc.
- ------------------------------------------------------------------------------------------------------------------------------------
Exelon Infrastructure                           Holding company for infrastructure services    Rule 58 (b)(1)(vii), (ix)
Services, Inc. (EIS),                           unit specializing in the design, construction,
PECO owns approximately                         operation and maintenance of utility (electric,
95%                                             gas, water cable television, and
                                                telecommunications) distribution networks
- ------------------------------------------------------------------------------------------------------------------------------------
Exelon Infrastructure                           Performs residential development and other     New Century Energies, HCAR No. 26748
Services of PA, Inc.                            infrastructure services work for PECO Energy
(EISPA)
- ------------------------------------------------------------------------------------------------------------------------------------
Chowns Communications,                          utility contractor providing primarily         Rule 58 (b)(1)(vii)
Inc. (CCI)                                      telecommunications services, including conduit
                                                installation projects for Bell Atlantic, Inc.
- ------------------------------------------------------------------------------------------------------------------------------------
Fischbach and Moore                             electrical contracting firm that constructs    Rule 58(b)(1)(i),(ii), (vii)
Electric, Inc. f/k/a                            electrical infrastructure for commercial and
NEWCOFM, Inc. (FAMI)                            industrial buildings and transit and traffic
                                                management systems for various government and
                                                private entities. Subsidiaries of Fischbach and
                                                Moore, Incorporated are: Fischbach and Moore
                                                Electrical Contracting, Inc.; T.H. Green
                                                Electric Co., Inc.; and A.S. Shulman Electric
                                                Company.
- ------------------------------------------------------------------------------------------------------------------------------------
MRM Technical Group, Inc.                       gas contracting firm comprised of six          Rule 58(b)(1)(vii)
(MRM)                                           subsidiary construction companies and several
                                                non-construction subsidiaries.  The
                                                construction companies are: Mueller Pipeliners,
                                                Inc. (New Berlin, WI); Gas Distribution
                                                Contractors, Inc. (Aurora, MO); Mid-Atlantic
                                                Pipeliners, Inc. (Newark, DE); Mueller
                                                Energy Services, Inc.
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       3
<PAGE>

<TABLE>
<S>                                             <C>                                                   <C>
- ------------------------------------------------------------------------------------------------------------------------------------
                                                (Lorain, OH); Mueller
                                                Distribution Contractors, Inc. (Sanford, FL); and
                                                Aconite Corporation (St. Paul, MN). Other
                                                subsidiaries are: Mechanical Specialties
                                                Incorporated and Rand-Bright Corporation.
- ------------------------------------------------------------------------------------------------------------------------------------
Syracuse Merit Electric,                        industrial and commercial electrical contracting      Rule 58(b)(1)(i),(ii), (vii)
Inc. (SME)                                      services including on-site electric facility,
                                                inside commercial facility electrical system and
                                                data system design and installation
- ------------------------------------------------------------------------------------------------------------------------------------
NEWCOTRA, Inc                                   Holding company for FAMI                              See FAMI above
- ------------------------------------------------------------------------------------------------------------------------------------
Trinity Industries, Inc.                        underground utility contractor installing natural     Rule 58(b)(1)(iv)(vii)(ix)
(TII)                                           gas pipeline mains and laterals
- ------------------------------------------------------------------------------------------------------------------------------------
OSP Consultants, Inc. (OSP)                     engineering and design services,                      Rule 58(b)(1)(vii); Section
                                                construction-related services, craft services         34 of the Act
                                                (cable splicing, installation and repair), project
                                                management and administrative functions on
                                                telecommunications infrastructure projects
                                                Subsidiaries include: International Communications
                                                Services, Inc.; OSP, Inc.; OSP Servicios, S.A. de
                                                C.V.; OSP Telcom de Colombia, LTDA; OSP Telcom,
                                                Inc.; OSP Telcomm de Mexico, S.A. de C.V.; OSP
                                                Telecommunications, Ltd.; RJE Telecom, Inc.; and
                                                Utility Locate & Mapping Services, Inc.  OSP
                                                operates in 33 states and several countries
- ------------------------------------------------------------------------------------------------------------------------------------
Horizon Energy Company                          sell competitively priced electricity and natural     Rule 58(b)(1)(v)
f/k/a PECO Gas Supply                           gas in deregulating retail markets; currently
Company                                         inactive
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       4
<PAGE>

<TABLE>
<S>                                             <C>                                                   <C>
- ------------------------------------------------------------------------------------------------------------------------------------
East Coast Natural Gas                          facilitate the coordinated use of certain natural     New Century Energies, HCAR
Cooperative LLC, PECO                           gas capacity, storage, transportation and supply      No. 26748
holds a 16.66% LLP                              assets in order to improve service reliability
interest                                        and efficiency
- ------------------------------------------------------------------------------------------------------------------------------------
Energy Trading Company                          holds interests in two publicly-traded companies:     Section 34 of the Act
                                                WorldWide Web NetworX Corporation and Entrade,
                                                Inc., each a developer and provider of business-
                                                to-business e-commerce solutions
- ------------------------------------------------------------------------------------------------------------------------------------
Exelon Ventures Corporation                     Inactive
- ------------------------------------------------------------------------------------------------------------------------------------
Exelon Capital Partners,                        venture capital fund established to leverage the      Section 34 of the Act
Inc.,                                           core business of utility infrastructure services      and/or Rule 58(b)(1)(i),
                                                and communications and PECO's other resources         (ii), (vii)
                                                through investment in new businesses.  Currently
                                                holds a 12% interest in Extant, Inc. and a 50%
                                                interest in CIC Global, LLC
- ------------------------------------------------------------------------------------------------------------------------------------
NEWHOLDCO Corporation                           An inactive subsidiary of PECO which will be
                                                renamed Exelon Corporation and will become the
                                                Applicant as a result of the Merger
- ------------------------------------------------------------------------------------------------------------------------------------
Utility Competitive                             Venture capital fund
Advantage Fund, LLC; Peco
holds 10% interest
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                                       5

<PAGE>

                                                                  Exhibit 99-J-1
                              PECO ENERGY COMPANY

                      ANALYSIS OF THE ECONOMIC IMPACT OF
                A DIVESTITURE OF THE REGULATED GAS BUSINESS OF
                              PECO ENERGY COMPANY

                               February 15, 2000

<TABLE>
<CAPTION>
TABLE OF CONTENTS                                         Page
<S>                                                       <C>
SECTION I.     EXECUTIVE SUMMARY                           2

SECTION II     CONCLUSIONS                                 5

SECTION III    DIVESTITURE ASSUMPTIONS                     6

SECTION IV     GENERAL METHOD OF STAND-ALONE ANALYSIS      7

SECTION V      NEWGASCO SPECFIC ANALYSIS                   8

SECTION VI     PECO-ELECTRIC OVERVIEW                     24
</TABLE>

EXHIBITS
     Exhibit 1.1   Income Statement
     Exhibit 1.2   Additional Operating Expenses
     Exhibit 1.2a  Payroll and Benefits
     Exhibit 1.2b  External Audit Fees
     Exhibit 1.2c  Insurance
     Exhibit 1.2d  Board of Directors
     Exhibit 1.2e  Transportation
     Exhibit 1.2f  Transition
     Exhibit 1.2g  Meter Reading
     Exhibit 1.2h  Postage
     Exhibit 1.2i  Incremental Non- Information Technology (IT)
                   Plant and related costs
     Exhibit 1.2j  Incremental IT Costs
     Exhibit 1.2k  Debt Interest Synchronization
     Exhibit 1.2l  Shareholder Services
     Exhibit 1.2m  Capital Stock and Realty Taxes
     Exhibit 1.2n  Uncollectibles
     Exhibit 1.3   Cost of Capital
     Exhibit 1.4   Management Structure & Employees By Department
     Exhibit 1.5   Employee Comparisons with Other Gas Utilities
     Exhibit 1.6   Effect on Electric Operations
<PAGE>

                              PECO ENERGY COMPANY

                     ANALYSIS OF THE ECONOMIC LOSS IMPACT
                            OF A DIVESTITURE OF THE
                     GAS OPERATIONS OF PECO ENERGY COMPANY

I.  EXECUTIVE SUMMARY

     This study was undertaken by the management and staff of PECO Energy
Company, a Pennsylvania corporation ("PECO"), in the context of its proposal to
merge with Unicom Corporation. The objective of this study is to quantify the
economic impact on shareholders and customers of divesting PECO of its natural
gas assets and business in the Commonwealth of Pennsylvania to a separate stand-
alone or independent natural gas distribution company ("NewGasCo"). This study
attempts to conservatively quantify many of the direct increases in the cost of
labor, facilities, information technology resources, capital financing and
miscellaneous general overheads that would be incurred as a result of a forced
divestiture. Additionally, PECO's study evaluates difficult to quantify,
indirect costs that would occur as a consequence of divestiture.

Summary of Shareholder Impacts

     The shareholder impacts of divesting PECO's gas operations were calculated
based on the increased operating expenses and capital cost that would result
from divestiture, and assumes no regulatory rate relief.  These substantial
increases are caused by several factors, including but not limited to much
higher employee counts due to the loss of shared intra-company support services
which are currently provided to both the gas and the electric operations at
PECO.  Cumulative employee counts resulting from the study total 1,031 for
NewGasCo, as opposed to the 582 full time equivalents charged to PECO's gas
operations in calendar year 1998.  While much of the field staff could be drawn
from existing PECO gas operations, most corporate, information system, and
customer service functions would need to be developed from scratch.  Other
corporate overheads and facilities, including buildings and IT systems, reflect
the cost of a start-up, detached operation.  Table I-1  shows these estimated
effects on NewGasCo.

                                       2
<PAGE>

                                   Table I-1

              Annual Shareholder Impact of Lost Economies ($000)


     Total Lost Economies                    $72,878

     Lost Economies as a percent of:

          Total Gas Operating Revenues         18.24%

          Operating Revenue Deductions         22.54%

          Gross Income                         95.42%

          Net Income                          124.57%

          Estimated return on rate base         2.04%

          Estimated common equity return       -5.70%

          Estimated return on net plant         1.49%


In Table I-1, lost economies represent the additional costs, excluding income
taxes, for NewGasCo to operate as a stand-alone company.  Total revenues reflect
the operating revenues for PECO's gas operations for the twelve months ended
December 31, 1998. Operating Revenue Deductions include all purchased gas
expense and gas withdrawn from storage, operation and maintenance expenses,
depreciation, and taxes other than income taxes.  Gross income is the difference
between Total Revenues and Total Expenses but excludes income taxes.  Net Income
is equal to Gross Income less income taxes.  Rate base represents
capitalization as of December 31, 1998.

Not measured in this study are prospective economic losses resulting from the
inability of the gas operations to obtain economic benefit of costs reductions
likely to result from the merger of PECO and Unicom.  That cost reduction
synergy has been estimated by management to range between $100 and $180 million
annually for NewHoldCo's combined regulated and non-regulated energy services
over the first three years after the merger is consummated.  Accepted accounting
principles would attribute a significant amount of those costs savings to PECO's
gas operations.   NewGasCo's inability to obtain these benefits, albeit not
quantified here, would be a clear economic loss for NewGasCo's shareholders.


Summary of Customer Impacts

                                       3
<PAGE>

With divestiture, it would be a reasonable assumption that shareholders of
NewGasCo would expect to receive a return on investment on a par with other
comparable gas utilities.  To achieve such a return, management of NewGasCo
would be required to seek and obtain increased revenues from its customers
through a rate increase.   Assuming further that NewGasCo were permitted by
state regulators to increase its revenue through a rate increase in an amount
equal to the "lost economies" plus associated income taxes, the projected impact
on customers is shown in Table I-2.


                                   Table I-2

                Annual Gas Customer Revenue Requirement Impact
                             Due to Lost Economies
                                    ($000)

<TABLE>
<S>                                <C>
     Pre-Divestiture               $399,642

     Post-Divestiture              $520,640

     Increase                      $120,988

     Percent Increase                 30.28%

     $ Annual Increase/Customer    $    292
</TABLE>

In addition, divesting the natural gas operations would create economic losses
for PECO's remaining electric utility operations.   These losses would come in
the form of higher corporate overheads and capital costs resulting from the loss
of allocation to the gas operations.  It is anticipated that transfers of any
common plant such as buildings and structures, communications equipment, and
information technology to NewGasCo would be minimal due to the retained need for
these items in electric operations.    Table I-3 shows the impact of these
losses on PECO's post-divestiture electric operations and assumes that those
losses, plus associated income taxes, would be fully allowed for recovery from
customers by state regulators.


                        Annual Electric Customer Impact
                             Due to Lost Economies
                                    ($000)


     Increase                      $6,950

     Percent Increase              0.0014%

                                       4
<PAGE>

Finally, due to the geographic overlap of PECO's electric and gas service
territories, effectively all of PECO's 415,000 gas customers receive a single
monthly bill for gas and electric service.  These customers would incur
increased personal costs such as additional postage (or if the customers pay
their utility bill in person, additional travel expense) and check writing
expense due to the need to remit payment to two utilities rather than one.
Also, unquantifiable would be the possible cost in having to deal with two
utilities instead of a single utility to address service, billing, and land-
related questions.   Table I-4 shows the impact of these lost economies on
postage expense of PECO's existing gas customers.


                                   Table I-4
                         Other Annual Customer Impacts

     Postage      $1,643,400 (415,000 customers  X 12 bills X
                                                 $.33 postage)



II.   CONCLUSIONS


Forced divestiture of PECO's gas operations would cause enormous economic loses
for the existing shareholders and customers of PECO Energy Company.
Efficiencies currently derived through shared employees and facilities, which
are integrated into almost every functional area of the company, would be
eliminated.  As a result, costs in each of these areas would markedly increase,
thereby reducing the value of the enterprise to PECO's shareholders and PECO's
gas and electric customers.  As set forth below and as shown in Exhibit 1,
shareholders would see lost economies of approximately $73 million per year,
which translates into 18.24%  of operating revenue 22.54% of operating revenue
deductions; 95.42% of gross income; and 124.57% of net income.  Because the
resulting return on common equity would be entirely unsatisfactory, and assuming
rate recovery for the full amount of these lost economies, the estimated impact
on customers would be increased gas rates amounting to more than 30% of an
average customer's annual bill, or $292 per customer.



III. DIVESTITURE ASSUMPTIONS

In determining the economic losses associated with divestiture of PECO's gas
operations, this study makes the following key assumptions:

     A.   If required, PECO would spin-off and divest its natural gas business
          into a stand-alone gas company (NewGasCo), independent of PECO Energy

                                       5
<PAGE>

          Company, unaffiliated with the parent holding company to be created as
          a result of the merger of PECO and Unicom (NewHoldCo), and
          unaffiliated with any other company.

     B.   Unlike other recent transfers of natural gas businesses, PECO's
          natural gas business would be transferred to NewGasCo at depreciated
          original cost book value of the assets, with no premium over book to
          reflect the market value being paid to acquire similar assets in
          today's energy marketplace.

     C.   Corporate administrative and general ("A&G"), information systems,
          customer service and field functions would be handled by NewGasCo
          stand-alone employees rather than through business units shared in
          common with PECO's electric utility, generation, and ventures
          businesses, except as otherwise indicated.

     D.   This study assumed current level of customers and business operations
          for PECO's utility businesses, including:

               1.   PECO is a combination electric and gas utility, engaged in
                    1) the generation, purchase, transmission, distribution and
                    sale of electricity; 2) the purchase, transmission,
                    distribution, storage and sale of natural gas; and 3)
                    certain non-regulated related businesses.

               2.   PECO's gas business serves a geographical region in
                    Pennsylvania comprising the four-county region surrounding
                    the City of Philadelphia. This service territory is
                    identical in all material respects to that served by PECO's
                    electric operation, except that PECO `s electric service
                    territory also includes the City of Philadelphia.

               3.   PECO serves approximately 415,000 gas customers and 1.5
                    million electric customers in this overlapping service
                    territory. In calendar year 1998, PECO's gas throughput and
                    operating revenues totaled 90,835,564 thousand cubic feet
                    (mcf) and $399.6 million. PECO's gas service is provided
                    through 5,877 miles of distribution mains interconnected
                    with two interstate natural gas pipelines and employed the
                    services of 582 employees (full-time equivalents or "FTEs")
                    as of December 31, 1998. Comparable operating statistics for
                    the electric side include 74,864 gigawatt hours (gwh) of
                    service delivered, $4,836 billion of operating revenues,
                    1,198 pole miles of transmission lines, 12,368 pole miles of
                    distribution lines, 9,465 megawatts of installed generation
                    capacity, and 6,477 employees (FTEs).

               4.   PECO's gas operations share common functions with its
                    electric service counterpart throughout its operations,
                    including common corporate and administrative, building,
                    customer service, information technology, office, field,
                    purchasing, and construction services.

                                       6
<PAGE>

IV. GENERAL METHODOLOGY USED IN THE ANALYSIS

     A.   This study employs information, assumptions, and data derived from the
          industry expertise and experience of personnel at PECO Energy,
          comparative benchmarking data, and assistance from independent
          management consultants. Personnel providing input and analyses into
          this study serve all major aspects of utility operations and corporate
          support functions, including but not limited to human resources,
          legal, information technology, gas operations, regulatory and external
          affairs, accounting, building services, corporate finance and
          strategic planning. Cost decreases, as well as cost increases, were
          considered.

     B.   The general assumptions applied to develop lost economies are as
          follows:

          1.   The economic losses associated with the divestiture of PECO gas
               operations into NewGasCo, as quantified, were based on the
               analysis of the work functions, facilities, vehicles, information
               system and telecommunications, and capital requirements
               consistent with a stand-alone gas utility concept.

          2.   The base from which economic results were measured used calendar
               year 1998 operating statistics, including numbers of employees,
               customers, revenues, assets, costs, and other data available at
               PECO.

          3.   NewGasCo would require an organization, number of employees, size
               and scope of facilities and infrastructure adequate to ensure
               that customers receive safe and reliable service into the future,
               including the need to satisfy industry standards, accepted
               practices, and regulatory requirements in all operational,
               customer service, shareholder service, financial reporting, and
               corporate governance functions.

          4.   Costs were developed on the following basis:

               a.   Labor costs were determined using PECO's average labor costs
                    in specific job classifications (e.g., executive,
                    managerial, supervisory, and technical professional, and
                    non-exempt other) and the pension and benefit cost loaders
                    used by PECO.

               b.   Non-labor costs included the costs for information systems,
                    telecommunications, field facilities, postage and other cost
                    items that would be significantly impacted by divestiture.

                                       7
<PAGE>

          5.   All economic losses reflect the net impact on the cost item
               measured after removing the allocation of costs to the gas
               business unit from the combined company.


V. NEWGASCO ANALYSIS


     A.   General Assumptions

     PECO's gas distribution system serves approximately 415,000 customers over
a square mile area in the four-county region surrounding Philadelphia,
Pennsylvania.  Those operations are tightly integrated into PECO's electric and
general corporate operations.   Of PECO's  total number of employees (as of
December 31, 1998), only about 250 spent 100 percent of their time on gas
operations.  Shared operations include integrated operational functions such as
customer service personnel who deal with service requests, planning engineers,
purchasers, managers and supervisors, warehouse personnel, service dispatchers,
marketing and sale personnel, and information systems specialists.
Additionally, PECO provides the gas business required corporate services in the
areas of human resources and employee benefits, risk management, legal,
regulatory, public affairs, communications, building services, and
telecommunications.  This depth of integration has enabled PECO to provide gas
utility service at a low cost.

     Following divestiture, NewGasCo would no longer be able to share staff for
various corporate, customer support, and field functions.  These areas would
need to be staffed at appropriate levels in order to maintain safe and reliable
service in a manner which would allow NewGasCo to function as a going concern,
attract and maintain capital investment, and comply with all applicable legal
requirements.

     This study generally incorporates PECO's existing corporate structure,
where practical.  Management representing each of PECO's functional areas were
consulted for detailed input into the requirement of a stand-alone gas utility
business.   Also, the study incorporates, where feasible, industry benchmarks
and practices.


     B.   Specific Assumptions

          1.   Board of Directors

          It was assumed that the number of and compensation for Board members
          would be the same for the stand-alone gas company as it would be for
          the combined PECO utility.

          2.   Labor

                                       8
<PAGE>

               a.   Current organizational structures, business practices and
                    levels of efficiency applicable to gas utility operations
                    were used as the basis for NewGasCo's organization and
                    staffing levels.

               b.   Numbers of employees required for NewGasCo were developed
                    using an approach in which each functional area was reviewed
                    to determine the nature of the work performed and the level
                    of effort required to support a stand-alone gas company.
                    Functional managers were consulted to determine appropriate
                    staffing levels.

               c.   Applicable comparative benchmark operating ratios where used
                    to gauge appropriate personnel levels in all functional
                    areas.

               d.   Employee benefits were assumed to be similar to the existing
                    levels of benefits in all functional areas.

               e.   Salaries of senior management of the smaller stand-alone gas
                    company were conservatively assumed to equal existing non-
                    officer executive level positions, a conservative measure in
                    light of the probable difficulty in attracting qualified
                    senior level gas utility executives to a newly-formed,
                    medium sized stand-alone gas company without paying premium
                    salaries and benefits.

               f.   Labor cost increases were determined on a net basis.
                    Allocation of labor costs from the combined PECO utility
                    operations were deducted from the cost of labor for
                    NewGasCo.

               g.   Salaries were determined using the average labor costs for
                    executives, technical professional, management, supervisory
                    and non-exempt positions.

                                       9
<PAGE>

          3.   Outside Services

          This study assumes that the cost of outside services expenditures
          would remain constant where the service was conducted exclusively for
          the gas business, and in certain other areas where the service was
          conducted jointly on behalf of both the electric and gas operations of
          PECO but divestiture would not significantly impact the costs to the
          gas operations.  However, other jointly provided services, such as
          annual financial audits performed by an independent external auditor,
          meter reading vendors, shareholder service vendors, and outside legal,
          were measured because costs in these areas would increase
          significantly as a result of divestiture.  In preparing this Study,
          PECO also considered areas where divestiture-related cost decreases
          might occur.  The potential cost decreases PECO identified were
          insignificant.

          4.   Information Systems/Telecommunications

          Post-divestiture, NewGasCo would require information system
          capabilities that are now provided through the combined PECO utility
          operations.  Pervasive integration of the gas and electric information
          systems exists currently in most functional areas, including customer
          dispatch, finance and accounting, payroll, human resources, work
          management, inventory and purchasing, meter reading, and customer
          service.

          Substantial capital costs to detach, map and reconfigure existing
          systems servicing the gas operations would be incurred. Incremental
          O&M expense also would be incurred due to the lost ability to spread
          those costs over PECO's larger electric operations and achieve the
          economies of scale currently benefiting the combined enterprise.

          5.   Buildings, Facilities, Vehicles

          Due to the gas-electric service territory overlap in the Philadelphia
          suburbs, PECO's gas operations currently share all non-electric
          generation related service buildings, warehouses, and storage yards
          outside of Philadelphia except the facilities located at the LNG plant
          in West Conshohocken, PA and a Propane-Air Plant located in Chester,
          PA.  PECO's gas operations are allocated a portion of the costs of
          these common facilities based on a formula using criteria such as
          number of customers, plant in service and revenues.  Post-divestiture,
          NewGasCo would need to replace these shared common facilities with
          similar stand-alone facilities located in the same general area due to
          the overlapping geography of the electric and gas service territories.
          This study based the cost of these similar facilities on the
          replacement value of

                                       10
<PAGE>

          the existing common plant and adjusts those values based on customer
          or employee count allocation criteria.

          While new employees would be hired to perform functions currently
          provided on a shared basis by employees located at PECO's Center City
          corporate headquarters, it was assumed for the purposes of this study
          that those employees would be absorbed into office space constructed
          for NewGasCo.  No separate corporate headquarters was included in this
          assessment.

          6.   Vehicles

          Due to the larger number of stand-alone administrative and general
          employees, incremental average annual transportation cost values were
          determined. While it is a reasonable assumption that NewGasCo would
          receive a transfer of a number of trucks and cars at least equivalent
          to the current cost allocation and the specialized gas vehicles
          already directly assigned to the gas operations, it is also likely
          that NewGasCo would need to purchase significant numbers of new
          service vehicles.

          With the number of new full-time managerial, supervisory and technical
          professionals employed by NewGasCo, corporate vehicular usage and
          associated travel costs were measured to derive the incremental cost
          associated with the larger administrative & general staffing
          for NewGasCo.

          7.   Depreciation

          Depreciation values were derived for the incremental plant only.
          PECO's depreciation rates were applied to the plant values to obtain
          the incremental depreciation expense.

          8.   Other Costs

          This study measured cost levels in the areas of insurance, postage and
          uncollectibles.  Insurance levels were based on the cost per thousands
          of dollars of increased plant or the numbers of employees.  Postage
          was predicated on NewGasCo's need to transmit its own customer bills
          rather than through a common bill format shared with the electric
          operations.  Uncollectibles were presumed to increase in accordance
          with the level of lost economies and increased revenue requirement.

                                       11
<PAGE>

          9.   Capital Expenditure and Cost

               a.   Capital costs would consist of: 1) the costs associated with
                    new buildings, facilities, plant, including field and
                    service buildings, and vehicles; and 2) capitalized labor
                    costs.

               b.   Divestiture was assumed to involve a tax-free spin-off to
                    the existing PECO shareholders. This would involve the
                    separate incorporation of NewGasCo, the transfer of gas-
                    related assets to NewGasCo, and the distribution of shares
                    to current shareholders.

               c.   Capital structure of NewGasCo was conservatively premised on
                    PECO's existing capital structure. No adjustments were made
                    to the cost of debt, although PECO's existing structure
                    reflects debt financing rates which may not be available in
                    today's financial markets for a stand-alone gas distribution
                    company. The cost of Common equity is conservatively
                    premised on returns recently allowed by various public
                    utility commissions for other gas distribution companies.

               d.   NewGasCo would receive the transfer of gas assets at net
                    book value, with additional capital expenditures for new
                    buildings, facilities, furniture, etc. based on replacement
                    cost value.

               e.   Working capital rates were unchanged from the pre-
                    divestiture values.

          10.  Transition Costs

          Transition costs were estimated for the cost of auditing and other
          accounting costs, legal fees, investment banker fees and human
          resources issues associated with the transfer of employees. The cost
          of hiring and training several hundred new employees, while likely to
          be significant, was not measured in this analysis. Estimated
          transition costs were amortized over a 10-year period. It was also
          assumed that the divestiture would be structured to avoid all federal
          or state income taxes and that the future tax obligations of NewGasCo
          would not be materially affected by the transfer.

     C.   Organizational Structure

     The existing management structure supporting PECO's gas operations was
utilized generally for the purposes of NewGasCo's organization. See Exhibit 2.
This structure was deemed adequate to satisfy the business purposes of meeting

                                       12
<PAGE>

NewGasCo's customer service obligations, legal and regulatory requirements and
generally accepted business and industry practices.   This organizational design
is reasonably structured along functional lines and is the primary driver of the
size of the employee base, associated payroll and employee benefit costs.  The
estimates for these items are predicated upon extensive consulting with PECO
management personnel, with utility benchmarks and industry practices also being
taken into account.

PECO's management structure currently allows the gas and electric operations to
share personnel and outside vendors for various corporate and field functions.
Examples of the corporate and field functions include legal, regulatory,
internal audit, environmental, safety, customer service, accounting,
construction, procurement, finance, and billing.  Examples of outside services
include meter reading, customer service, outside legal and external audit.  Upon
divestiture, NewGasCo would need to create a stand-alone management structure to
staff each of these shared functions and obtain needed outside services without
the shared support from PECO's electric operations, as follows and as shown in
Exhibit 1.4:

     1. Senior Management. NewGasCo would have a President and Chief Executive
        Officer (CEO) which would report directly to the Board of Directors.
        Reporting to the CEO would be the Chief Operating Officer (COO), VP-
        Legal (General Counsel), VP-Finance and Accounting (CFO), VP-Information
        Systems, and VP-Human Resources.

     2. Directly reporting to the COO would be vice presidents of Corporate &
        Public Affairs, Gas Supply and Transportation, Contractor and Supply
        Management, Customer and Marketing Services, and Operations.

          a.   Corporate and Public Affairs handles government affairs, public
               relations and corporate communications. A total of 1 executive, 9
               managerial, supervisory and technical professionals, and 4
               support personnel are estimated for this function.

          b.   Gas Supply and Transportation involves supply and transportation
               planning and acquisition, end user transportation, risk and
               portfolio management, off-systems sales and trading, and supply
               and capacity contract management, gas regulation, production
               plant management and operation. A total of 1 executive, 32
               management, supervisory, and technical professionals, and 13
               other personnel were estimated for this department.

          c.   Contractor and Supply Management handles non-gas supply
               purchasing and disposal, inventory control and management,
               transportation management, work management, general services,
               real estate, storeroom and warehousing, construction and
               materials vendor relations and contracts associated therewith. A
               total of 1 executive, 72

                                       13
<PAGE>

               managerial, supervisory, and technical professionals, and 89
               other personnel are estimated for this department.

          d.   Customer and Marketing Services includes load and sales
               forecasting, market, product, and sales planning and support,
               market research, community services, advertising and promotion,
               economic development, customer outreach, customer inquiries, call
               center functions, meter reading, managing outside meter reading
               services, billing and payment, customer and revenue accounting,
               central cash remittance and bill processing, credit and
               collections. A total of 1 executive, 63 managerial, supervisory
               and technical professionals, and 111 other personnel are included
               for this department.

          e.   Operations includes gas system engineering, design and analysis,
               field services, contractor and builder services, field work
               management, management of outside construction services in the
               field, facilities maintenance, engineering & design services,
               customer dispatch, mapping and document services, corrosion
               control. A total of 1 executive, 90 managerial, supervisory and
               technical professional, and 352 other personnel are estimated for
               this department.

     3. Human Resources is responsible for establishing and administering
        employee compensation plans, training and development, and employee
        relations. A total of 1 executive, 15 management, supervisory, and
        technical professionals, and 5 support personnel are estimated for this
        department.

     4. Finance and Accounting provides treasury and financing services, payroll
        accounting, insurance, internal and external reporting, office services,
        performance measurement, accounts payable and receivable accounting,
        property accounting, general ledger and corporate accounting, tax
        accounting, budgeting, financial and corporate planning, shareholder
        relations, rates and regulatory affairs. A total of 3 executives, 49
        management, supervisory and technical professionals, and 22 support
        personnel are estimated for this department.

     5. Legal is responsible for compliance with applicable statutes, rules and
        regulations, claims, litigation, internal audit, environmental affairs
        and corporate secretary functions. This function performs legal services
        itself and manages specialized outside counsel. A total of 1 executive,
        21 management, supervisory and technical professionals, and 12 support
        personnel are estimated for this department.

     6. Information Services and Telecommunications handles application systems
        development and maintenance, database administration and security,
        computer operation, end user information and help-desk support, and
        telecommunications. A total of one executive, 52 management, supervisory

                                       14
<PAGE>

        and technical professionals, and 3 support personnel are estimated for
        this department.


     D.  Annual Cost Increase

     The annual incremental costs associated with creating the stand-alone
NewGasCo are shown in the Income Statement at Exhibit 1.1. These costs total
$72.9 million, and include operating expense and rate base cost increases caused
by a divestiture and the tax implications resulting therefrom.  See Exhibit 1.2.
Put on a ratemaking basis, the full impact on customers is estimated to be
$122.9 million.  See Exhibit 1.1.


                                   Table V-1

                       Annual Cost Increases to NewGasCo
                                 (Thousand $)

<TABLE>
<CAPTION>
Income Statement Adj.              Rate Base   Revenues   Expenses  Taxes
<S>                                <C>         <C>        <C>      <C>
I.     Payroll                                            27,541   (11,428)
II.    Benefits                                            9,565    (3,969)
III.   External Audit                                      1,041      (432)
IV.    Insurance                                             217       (90)
V.     Director's Fees                                       582      (241)
VI.    Transportation                                         32       (13)
VII.   Transition Cost Amort.                                567      (235)
VIII.  Meter Reading                                       2,868    (1,190)
IX.    Postage Expense                                       603      (250)
X.     Book Depreciation Other than IT                     1,420
XI.    Income Tax Impact of Book Depr. Other than IT                  (917)
XII.   Deferred Tax Impact of Book Other than IT                     1,235
XIII.  IT Operating Expense                               11,682    (4,847)
XIV.   IT Book Depreciation                               11,875
XV.    Income Tax Impact of IT Book Depreciation                    (7,281)
XVI.   Deferred Tax Impact of IT Book Depreciation                   6,074
XVII.  Interest Adjustment                                          (7,976)
XVIII. Shareholder Services                                2,585    (1,073)
</TABLE>

                                       15
<PAGE>

XIX. Capital Stock and Realty taxes     870      (361)
XX.  Uncollectible Accounts           1,453      (593)

Rate Base Adjustments

I.   Buildings, Facilities, Vehicles   14,142
II.  ADIT Excluding IT                 (1,004)
III. Book Reserve Excluding IT          5,017
IV.  IT Plant                          86,777
V.   IT ADIT                            6,074

          Income Statement Adjustments

               1.   Labor costs (Payroll and Benefits) represent the largest
                    total cost increase associated with divestiture, an
                    aggregate increase of $37,106,312. See Exhibit 1.2a. These
                    increases are due to the following:

                    a.   Divestiture of NewGasCo would require the hiring of
                         many employees for job functions which were previously
                         performed at PECO by shared employees supporting both
                         the gas and electric operations. This study estimates
                         that 449 new employees would need to be hired and
                         trained in a number of areas, including executives,
                         managerial, supervisory and technical professionals,
                         and other personnel in all areas of the company
                         excluding Gas Supply and Transportation. See Exhibit
                         1.3.

                    b.   NewGasCo's staffing estimates compare favorably with
                         benchmarks of other gas companies on the basis of
                         customers per employee, generally accepted measures of
                         efficiency were also made. This comparison is shown in
                         Table V-2. PECO's level of efficiency exceeds all of
                         the gas companies in the comparison group. The addition
                         of employees for NewGasCo lowers the efficiency of the
                         gas company as compared with its original position
                         within PECO but efficiency still exceeds the majority
                         of the other companies measured. The relative
                         efficiency of NewGasCo compared to its peers post-
                         divestiture is indicative of the conservative nature of
                         this study. See also, Exhibit 1.5.

                                   Table V-2

                                       16
<PAGE>

                           Benchmark Comparison With
                        Other Stand-Alone Gas Companies

Gas Utility          Employees  Customers per Employee  Dist. Mains/
                                                        Employee
                                                        (000 ft.

Peoples                 935             374               31.65

Columbia of PA          876             438               41.55

PG Energy               554             269               22.29

Equitable               770             265               24.07

Avg.                                    336               29.89

PECO                    582             714               53.32

NewGasCo               1031             402               30.10

            PECO would note that, during 1998, the employee counts of three of
            the four other Pennsylvania gas companies included in Table V-3
            benefitted from being part of holding company corporate structures
            which utilize shared employees to provide services in a number of
            functional areas and therefore reflect employee counts which
            understate the number of employees in a true stand-alone company.
            In today's energy marketplace, true stand-alone gas distribution
            companies are rare.  Most gas distribution companies of any
            significant size are now part of larger holding company corporate
            structures or a combination utility, and those figures are growing
            at a quick pace with additional mergers.  Indicative of this trend
            is the fact that of the four gas companies cited above, three were
            involved in mergers within the last year (Peoples, as part of the
            CNG-Dominion Resources merger; Equitable Resources' acquisition of
            Carnegie Natural Gas Company from USX Corporation; and PG Energy's
            acquisition by Southern Union) in order to take advantage of
            economic gains available in larger, integrated organizations.


       2.   External Audit refers to fees paid in connection with external
            auditing and other accounting services. These fees are currently
            shared among the combined utility business units. The outside
            services and the associated costs were reviewed in terms of the
            types and extent of

                                       17
<PAGE>

               services which would be needed by NewGasCo. The additional costs
               associated with these services would be $1.041 million annually.
               The calculation of this income statement adjustment is shown in
               attached Exhibit 1.2b.

          3.   Insurance expense refers to cost of premiums of property, general
               and excess liability, and directors and officers liability
               coverage. Property insurance was based on the cost of plant.
               Liability insurance was based on the number of employees.
               Insurance expense increased $217,051 per annum over the pre-
               divestiture level. The calculation of this income statement
               adjustment is shown in attached Exhibit 1.2c.

          4.   Director's Fees refers to compensation for NewGasCo's Board of
               Directors. The increase here assumes that the current amount of
               director's fees would be paid by NewGasCo on a stand-alone basis.
               Since these costs would no longer be shared with PECO's electric
               operations, NewGasCo's amount would be higher than that allocated
               to PECO's gas operations. This increase equals $581,831 on an
               annual basis. The calculation of this income statement adjustment
               is shown in attached Exhibit 1.2d.

          5.   Transportation expenses represents an annual increase of $32,185
               due to the increased number of administrative and general
               employees for which corporate vehicular expense would be
               incurred. The calculation of this income statement adjustment is
               shown in attached Exhibit 1.2e.

          6.   Transition costs are incurred to create the stand-alone company,
               including: internal/external communications, auditing and other
               accounting costs, investment banker's fees, legal fees, and human
               resources issues. The total transition costs are estimated to be
               $5,674,404. A 10-year amortization period results in an annual
               cost increase of $567,440. The calculation of this income
               statement adjustment is shown in attached Exhibit 1.2f. The
               incremental rate base impact of the unamortized transition costs
               were not incorporated into the analysis.

          7.   Meter Reading expenses refers to the expenses paid outside
               contractors to perform NewGasCo's meter reading function. PECO
               currently contracts its entire meter reading service to outside
               vendors which read both electric and gas meters at the same time.
               Divestiture would require NewGasCo to perform this function on
               its own. Stand-alone gas meter reading expense was estimated
               based on ratio of gas and electric customer numbers. The
               resulting annual increase for NewGasCo is $2.868 million. The
               calculation of this income statement adjustment is shown in
               attached Exhibit 1.2g.

                                       18
<PAGE>

          8.   Postage increase was simply calculated as the increased level of
               postage expense caused by NewGasCo assuming a separate billing
               function that previously was performed jointly on behalf of both
               PECO's electric and gas operations. Total costs were offset
               against 1998 allocated costs to result in a $602,732 net increase
               in postage expense. The calculation of this income statement
               adjustment is shown in attached Exhibit 1.2h.

          9.   Book Depreciation Expense for non-IT incremental plant refers to
               the increased level of depreciation expense associated with
               incremental plant (buildings, structures, office furniture, etc.)
               resulting from the divestiture. This level of expense was
               estimated at $1.42 million per year. Discussion of the increased
               non-IT plant is found at No. 19 below. The calculation of this
               income statement adjustment is shown in attached Exhibit 1.2i,
               page 1 ($2,355,184 - $935,000 = $1,420,184).

          10.  In conjunction with the increase level of depreciation expense
               for non-IT items, NewGasCo's deferred tax liability would
               increase $1.235 million annually. The calculation of this income
               statement adjustment is shown in attached Exhibit 1.2i, page 1
               ($1,242,271 - $7,000 = $1,235,271).

          11.  A measure of incremental operating and maintenance expense for
               information technology was performed by PECO's IT department.
               These costs generally are in areas where only a small portion of
               overall costs are allocated to the gas operations. On a stand-
               alone basis, all costs to operate and maintain mainframe and
               other information systems used for billing, metering, and other
               purposes would be borne exclusively by NewGasCo. Incremental
               expenses were estimated at $11.682 million per year, as discussed
               in No. 20 below. The calculation of this income statement
               adjustment is shown in attached Exhibit 1.2j.

          12.  Similarly, book depreciation associated with incremental IT
               system plant expenditures caused these expenses to increase by
               $11875 million. Discussion of the increased IT capital plant is
               found at No. 21 below. The calculation of this income statement
               adjustment is shown in attached Exhibit 1.2j.

          13.  Partly offsetting book depreciation expense associated with
               incremental IT plant costs is the related reduction in income
               taxes. This value was estimated as $7.281 million. The
               calculation of this income statement adjustment is shown in
               attached Exhibit 1.2j.

                                       19
<PAGE>

          14.  Deferred income taxes increases associated with incremental IT
               plant in service was estimated at $6.074 million. The resulting
               income statement adjustment is shown in attached Exhibit 1.2j.

          15.  Tax savings resulting from increased debt interest expense caused
               by plant additions reduce income tax expense by $7.976 million as
               shown in Exhibit 1.2k.

          16.  Shareholder services expense is incurred in the areas of outside
               services, annual reports, proxy reports, annual meeting expenses,
               and stock exchanges compliance. Sharing of costs between gas and
               electric operations will not occur with the creation of NewGasCo.
               The resulting increased expense associated with the loss of
               sharing was estimated to be $2.585 million on an annual basis.
               The calculation of this income statement adjustment is shown in
               attached Exhibit 1.2l.

          17.  Capital stock and realty taxes associated with the increased
               amount of plant financed by preferred and common equity stock
               increased by $59.05 million. Applying the statutory rate of
               1.099% to that value results in an increase in capital stock tax
               of $870,093 annually. The calculation of this income statement
               adjustment is shown in attached Exhibit 1.2m.

          18.  Uncollectible accounts expense is estimated to increase by more
               than $1.43 million each year based on the increased revenue
               requirement of NewGasCo. The calculation of this income statement
               adjustment is shown in attached Exhibit 1.2n.


     Rate Base Adjustments

          19.  Increase in Common Plant Exc IT refers to the incremental capital
               investment associated with new service and office buildings,
               warehouses, vehicles and other facilities needed to house and
               transport NewGasCo's employees, inventories, and operations that
               would be needed as a result of divestiture. The amount of this
               rate base adjustment is $14.142 million. These applicable rate
               base values are set forth at attached Exhibit 1.2i, page 1
               ($73,688,905 - $59,547,000 = $14,142,000).

               a. Effectively all buildings, vehicles, and facilities located
                  outside Philadelphia are shared in common between the gas and
                  electric operations. To determine NewGasCo's costs for these
                  items, it was assumed that NewGasCo would require facilities
                  at locations similar to the existing PECO common plant located
                  outside Philadelphia. Next, it was assumed that NewGasCo would

                                       20
<PAGE>

                  construct rather than lease those facilities. Rather than
                  determine the square footage needed to determine the
                  replacement cost of the facilities, the replacement value of
                  PECO's existing common facilities was determined and then
                  apportioned to NewGasCo based on an appropriate measure (such
                  as the relative number of employees or customers). The total
                  plant arising from this figure was then compared to the
                  existing allocation of common plant to the gas operations to
                  determine the incremental capital investment in buildings,
                  vehicles and other related facilities (office furniture, etc.)

               b. NewGasCo would need to construct or lease buildings and
                  associated garages and parking areas for their field
                  operations. PECO currently has two gas operating regions, each
                  covering a two-county area (BucksMont and DelChester). Each of
                  these regions have several buildings to house customer
                  service, operations, and other field personnel serving
                  executive, managerial, supervisory and technical professional,
                  as well as non-exempt functions.

               c. Currently, two facilities are dedicated entirely to the gas
                  operations, the LNG facility at West Conshohocken and the
                  separate Propane-Air Facilities located in Chester,
                  Pennsylvania and house the Gas Supply and Transportation
                  group. All other facilities and vehicles are shared with
                  PECO's electric operations, with a large percentage of
                  corporate A&G personnel being housed in PECO's main
                  headquarters in Philadelphia. Accordingly, NewGasCo would have
                  to construct, purchase or lease new facilities and vehicles
                  adequate for its employees, field, customer service, and
                  corporate operations.

               d. NewGasCo would have to construct a Call Center, involving
                  physical space and furniture.

               e. Corporate Offices would also be required for NewGasCo,
                  including furniture. For the purpose of this study, it was
                  conservatively assumed that corporate personnel would be
                  absorbed into the service buildings constructed for NewGasCo
                  rather than construct a singular centralized headquarters
                  building. Practically, however, it would be reasonable to
                  assume that NewGasCo would need to centrally house its
                  corporate personnel to operate efficiently. The cost of that
                  central location has not been included in this estimate.

          20.  Reduction in Book Reserve refers to the loss as a result of
divestiture of the book depreciation reserve which has accumulated for PECO's
existing common plan facilities. Book depreciation

                                       21
<PAGE>

                    reserve offset the original cost value of plant, resulting
                    in a lower net plant cost for rate base purposes. Loss of
                    the accumulated reserve benefit of being part of the
                    combined PECO utility operations increases therefore,
                    increases rate base in the amount of $5.017 million. See
                    Exhibit 1.2i and j.

               21.  Aside from increased Labor Costs, the incremental cost
                    associated with Information Technology represents the single
                    greatest cost increase caused by the divestiture. These
                    additional costs are shown in attached Exhibit 1.2j

                    a.  PECO's IT department provided the cost of new and
                        modified IT systems, operating and maintaining
                        NewGasCo's information systems on a stand-alone basis.
                        The increase in IT plant was estimated conservatively at
                        $86.8 million. Depreciation expense increased by $11.9
                        million annually. O&M expense increased by $11.7 million
                        annually. All of these costs would be necessary to
                        enable NewGasCo to function on a stand-alone basis
                        without support from PECO's common IT system. See,
                        Exhibit 1.2j.

                    b.  The largest cost driver for the incremental IT plant
                        costs ($20 million) would be incurred to extract and
                        convert all existing gas related information into new
                        data formats and storages. Following suit, costs to
                        detach and build new Radio Dispatch ($18 million), CIS
                        ($10 million), PAC ($5 million), Passport ($3.5
                        million), Enterprise ($6.4 million), and Mainframe ($2
                        million) assets and applications added substantially to
                        the overall incremental cost levels. Significant plant
                        cost increases would occur throughout almost every
                        aspect of the entire operation.

                    c.  The largest cost drivers for the incremental O&M expense
                        would be incurred in the areas of Mainframe and 3Tier
                        processing ($7.125 million) and Enterprise Applications
                        ($1.0 million). As with IT plant, significant operating
                        cost increases would occur throughout almost every
                        aspect of the entire operation.

                    d.  No effort was made to calculate the increased telephone
                        expense associated with the larger number of employees,
                        although this cost increase would be significant.

                    e.  No effort was made to calculate the increase rate base
                        effect associated with the loss of book depreciation
                        reserve resulting from the divestiture similar to the
                        increased rate base impact of the rate base adjustment
                        for Reduction in Reserve Excl IT. See No. 19 above. As
                        with the adjustment in No. 19 above, the impact would be
                        substantial.

                                       22
<PAGE>

D.   Capital Costs

The capital costs estimated for NewGasCo reflect the capital structure and debt
financing currently embedded in PECO's balance sheet.  The cost of common equity
for NewGasCo of 10.70% reflects the level permitted in recent public utility
commission decisions.

While it is likely that as a smaller stand-alone company, NewGasCo's cost of
debt will exceed that of PECO as the buying power associated with the larger
PECO enterprise will be lost and NewGasCo would not be able to participate in
the lower cost markets in which PECO currently participates, this increased cost
was not measured.

E.   Additional Lost Economies

In addition to the economic losses measured above, NewGasCo would experience
economic losses related to its inability to share in the economic efficiency
gains to be derived in connection with PECO's merger with Unicom.   These gains
would come in the form of reductions to the level of corporate A&G, customer
service, purchasing, information technology and other overhead costs which are
likely to accrue as a result of the merger.  These cost reductions are currently
estimated in the $100-180 million range over the first three years of the
merger, with approximately 55% of those savings being experienced in regulated
gas and electric transmission and distribution operations. While the gas
business is relatively small in comparison to the electric side, the cost
savings for gas operations would be significant.  Finally, the cost of NewGasCo
customers now being required to pay two bills rather than one is not
insubstantial, at $1,643,000 (415,000 customers x 12 bills per year x $0.33
stamp per bill).

F.   Total Lost Economies

Measurable operating and capital cost increases for a stand-alone NewGasCo
approach $72.901 million based on an analysis that extracts PECO's existing gas
operations from its overall corporate structure.  Recovering those lost
economies from customer in a general rate request proceeding would also involve
a request for additional income taxes and other costs associated with the
increased cost of capital and capital financing requirements of the new
business.  Total increased revenue requirements that would have to be recovered
from NewGasCo's customers are estimated at approximately $123 million.  Other
lost economies would accrue to customers as a result of paying two utilities
bills instead of one, providing meter reading access to two utilities rather
than one, and dealing with two utility call centers rather than one for service
related matters; the increased cost here has been measured only in terms of
increased postage, at $1,643,000.  The measured value of lost economies
associated with a divestiture of PECO's gas operations from PECO Energy Company

                                       23
<PAGE>

does not include significant lost future economies resulting from the PECO-
Unicom merger.


VI.  PECO-Electric Overview

     Lost economies will also accrue for PECO's electric operations and
customers as a result of a gas divestiture.  Pre-divestiture cost synergy (cost
sharing and purchasing economies) implicit in the every day business operations
of almost every facet of the combination utility will be lost.  See Exhibit 1.6.
For example, PECO's cost of providing regulated electric service will increase
in many areas, including the following:

     A.   Increased outside services costs in the form of higher auditing
          expense, etc. ($75,000).

     B.   Increased Board of Director's Fees ($42,000).

     C.   Increase in shareholder's services expenses due to loss of cost
          sharing with gas operations ($187,000).

     D.   Increased depreciation expense due to the loss of common plant sharing
          with the gas operations ($935,000).

     E.   Increased postage expense due to the loss of shared costs with the gas
          operations ($528,000).

     F.   Related rate base increased caused by the loss of sharing with gas
          operations ($81,040).

     The revenue requirement impact on the electric business for just these
items would be $6,950.  PECO does not consider the lost economies related to
electric operations to result from a full and complete analysis and believes
that such lost economies would be far greater.  PECO offers the above analysis
simply to provide examples of the types of lost economies that would occur as a
result of forced divestiture of its gas operations.

                                       24
<PAGE>

                                   EXHIBIT I
                                   ---------

                               TABLE OF CONTENTS
                               -----------------

<TABLE>
               Analysis for a Gas Stand Alone Company              Page
                                                                   ----
<S>                                                                <C>
1.1 Income Statement for Gas Stand Alone Company                     1

1.2 Expense and Ratebase Adjustments for Gas Stand Alone Company     4

1.3 Organizational Structure for Gas Stand Alone Company            21

1.4 Current Payroll Analysis for PECO Energy Company                30

1.5 Employee Comparisons with Other Gas Utilities                   31

1.6 Effect on Electric Operations                                   32
</TABLE>

                                       25
<PAGE>

                                 Exhibit 1.1                                   1
                                 -----------                                   -

                              PECO Energy Company
                                Gas Operations
                        Year Ending December 31, 1998
                                  (Thousand$)

<TABLE>
<CAPTION>
                                                                                                               Adjusted
                                                              Actual     Adjustments                 Required    with
                                                            From Dec98       for       Adjusted to     Rate      Rate
                                                               PAPUC     Stand Alone   Stand Alone   Increase  Increase
                                                               -----     -----------   -----------   --------  --------
                                                              Quart Rep
                                                              --------
<S>                                                         <C>          <C>           <C>           <C>       <C>
Operating Revenues                                            $399,642     $       0     $ 399,642   $120,998  $520,640
- ------------------

Expenses
- --------
               O&M Expense                                    $271,077     $  58,713     $ 329,790             $329,790
               Annual Depreciation                            $ 31,708     $  13,295     $  45,003             $ 45,003
               Taxes-
               Other than Income                              $ 20,480     $     870     $  21,350   $      0  $ 21,350
                                                              --------   -----------     ---------   --------  --------

Total Operating Revenue Deductions                            $323,265     $  72,878     $ 396,143   $      0  $396,143
- ----------------------------------                            --------   -----------     ---------   --------  --------

Gross Gas Income                                              $ 76,377      ($72,878)    $   3,499   $120,998  $124,497
- ----------------

Federal /State Income Taxes                                   $ 17,871      ($33,586)     ($15,715)  $ 50,207  $ 34,492
                                                              --------   -----------     ---------   --------  --------

Net Gas Income                                                $ 58,506      ($39,292)    $  19,214   $ 70,791  $ 90,005
- --------------


Ratebase                                                      $839,135     $ 100,866     $ 940,001             $940,001
- --------
Return on Ratebase                                                6.97%                       2.04%                9.58%
- ------------------
Return On Equity Ratebase                                         5.03%                      -5.70%               10.70%
- -------------------------

Income Tax Rate=             41.494%  Gross Receipts Tax Rate=                  0.00%

Annual Effect of Lost Economies on Shareholders
- -----------------------------------------------

Lost Economies                                                $ 72,878
- -------------                                                    18.24%
               As a % of Revenues
               As a % of Operating Revenue
                Deductions                                       22.54%
               As a % of Gross Income                            95.42%
               As a % of Net Income                             124.57%
In the Absence of Rate Relief
- -----------------------------
               Return on Ratebase                                 2.04%
               Return on Net Plant                                1.49%

Annual Effect of Lost Economies on Customers
- --------------------------------------------

Pre Spin-off                $399,642
Post Spin-off               $520,640
Dollar Increase             $120,998
Percent Increase               30.28%
</TABLE>

                                       26
<PAGE>

                              Exhibit 1.1, page 2
                              -------------------

                               GASRATEBASE DATA
                               ----------------
                                  (Thousand$)


Actual From December 31, 1998 Gas Quarterly Report
- ---------------------------------------------------

<TABLE>
<CAPTION>
                                                                         Stand Alone
Ratebase                                     Actual        Adjustment      Ratebase
- --------                                     ------        ----------      --------
<S>                                         <C>            <C>           <C>
Gas Plant                                   $1,131,996                    $1,131,996
Common Plant/Information Tech.              $   59,547       $100,919     $  160,466
                                            ----------       --------     ----------

Total Plant                                 $1,191,543       $100,919     $1,292,462

Gas Reserve                                 $  287,046                    $  287,046
Alloc. Common Reserve incl Information      $   19,247        ($5,017)    $   14,230
 Tech.                                                                    ----------

Total Reserve                               $  306,293        ($5,017)    $  301,276
                                            ----------       --------     ----------

Net Plant                                   $  885,250       $105,936     $  991,186

Materials and Supplies                      $   42,732                    $   42,732
Cash Working Capital                        $   13,494                    $   13,494
                                            ----------                    ----------

Total Additions                             $   56,226       $      0     $   56,226

Acc. Def Taxes-Lib Depn                     $  101,179       $  5,070     $  106,249
Customer Deposits                           $      393                    $      393
Customer Advances                           $    2,204                    $    2,204
CIAC                                           ($1,435)                      ($1,435)
                                            ----------                    ----------

Total Deductions                            $  102,341       $  5,070     $  107,411

RATEBASE                                    $  839,135       $100,866     $  940,001
</TABLE>

                                       27
<PAGE>

                              Exhibit 1.1, page 3
                              -------------------

Warehouse Data Allocation
- -------------------------
Report to PUC for 1998

Electric Customers      1,494,356         78.25%
Gas Customers             415,437         21.75%
                        ---------         ------

Total                   1,909,793        100.00%


Common Plant Allocation-Service Buildings, Centers
- --------------------------------------------------
Report to PUC for 1998

Gas Customers                           415,437          31.03%
Electric Customers
    Excl Philadelphia                   923,584          68.97%
                                      ---------         -------

Total                                 1,339,021         100.00%

Common Plant-Transportation Center
- ----------------------------------
Based on Employees

Current=                                  7,029
Gas Stand Alone=                          1,031          14.67%

Common Call Center and Software
- -------------------------------
Based on Customers

Gas                                     415,437          27.80%

Total(No Double Count)                1,494,356

                                       28
<PAGE>

                                  Exhibit 1.2
                                  -----------

                         Income Statement and Ratebase
                   Adjustments Based on 1998 Gas Operations
                   ----------------------------------------
                                  (Thousand$)

<TABLE>
<CAPTION>

Income Statement                                                                                                  0.41494
- ----------------                                                                                                   Income
Adjustments                                                           Rate Base      Revenues       Expenses       Taxes
- -----------                                                           ---------      --------       --------       -----
<S>                                                                   <C>            <C>            <C>           <C>
I. Increase in Payroll Expenses                                                                     $27,541       ($11,428)
II. Increase in Benefits                                                                            $ 9,565        ($3,969)
III. Increase in External Audit Fees                                                                $ 1,041          ($432)
IV. Increase in Insurance Expense                                                                   $   217           ($90)
V. Increase in Board of Director's Fees                                                             $   582          ($241)
VI. Increase in Corporate Vehicles Expenses                                                         $    32           ($13)
VII. Amortization of Transition Costs                                                               $   567          ($235)
VIII. Increase in Meter Reading Expenses                                                            $ 2,868        ($1,190)
IX. Increase in Postage Expenses                                                                    $   603          ($250)
X. Increase in Book Depreciation Expense Excl Information Technology (IT)                           $ 1,420
XI. Reduction in Taxes from Increase in Tax Depreciation Excl IT                                                     ($917)
XII. Increase in Deferred Taxes from Depreciation Expense Excl IT                                                $   1,235
XIII. Increase in Information Technology Expenses (IT)                                              $11,682        ($4,847)
XIV. Increase in IT Book Depreciation                                                               $11,875
XV. Reduction in Income Taxes From IT Tax Depreciation                                                             ($7,281)
XVI. Increase in IT Deferred Taxes from Tax Depn                                                                 $   6,074
XVII. Tax Savings on Ratebase Interest Adjustment                                                                  ($7,976)
XIII. Increase in Shareholder Services Expenses                                                     $ 2,585        ($1,073)
XIX. Increase in Capital Stock and Realty Taxes                                                     $   870          ($361)
XX. Increase in Uncollectible Accounts Expense                                                      $ 1,430          ($593)
                                                                                                    -------      ---------

Total                                                                                      $0       $72,878       ($33,586)

Ratebase Adjustments
- ----------------------
I. Increase in Common Plant Excl IT                                   $ 14,142
II. Increase in Accumulated Deferred Taxes Excl IT                     ($1,004)
III. Reduction in Reserve Incl IT                                     $  5,017
IV. Increase in IT Plant                                              $ 86,777
V. Increase in IT Accumulated Deferred Taxes                          $  6,074
                                                                      --------

Total                                                                 $100,866


</TABLE>

                                       29
<PAGE>

                                 Exhibit 1.2a
                                 ------------

Salaries and Benefits From Additional Employees
- -----------------------------------------------

<TABLE>
<CAPTION>
Combination Employees                                                    582  Stand Alone Employees=                  1031
Increase in Employes in Stand Alone                                                                   449
Average Salary in 1998=                                                                       $    63,868
                                  For Gas Stand Alone        Gas Stand Alone       Average Salaries         Total Salaries
                                  -------------------------  ---------------  ---------------------------   --------------
<S>                               <C>                        <C>              <C>                           <C>
Salaries                          Executive                               13                  $   130,000      $ 1,690,000
                                  Managerial/Pofessional                 403                  $    80,000      $32,240,000
                                  Non-Exempt                             615                  $    50,000      $30,750,000
                                                                        ----                                   -----------
                                                                        1031                                   $64,680,000

                                  Actual 1998 Gas Salaries=                                                    $37,138,761


Increase in Salaries                                                                          $27,541,239
Benefits Loader at                                                                                  34.73%

Increase in Benefits                                                                          $ 9,565,072
                                                                                              -----------

Increase in Salaries and Benefits                                                             $37,106,312
</TABLE>

                                       30
<PAGE>

                                 Exhibit 1.2b
                                 ------------

<TABLE>
<CAPTION>
                                                     Stand     Allocated   Increase for
                                                     Alone     Actual Gas  Stand Alone
                                                   ----------  ----------  ------------
<S>                                                <C>         <C>         <C>
External Audit Fees
- -------------------
Audit                                              $  456,185  $   30,834  $    425,351
Acct Serv                                          $  660,000  $   44,610  $    615,390
                                                   ----------  ----------  ------------
Total                                              $1,116,185  $   75,443  $  1,040,742
Basis 923 acct Outside Services employed
- ----------------------------------------
electric=                             $29,258,641  gas=        $1,977,598   0.067590221
</TABLE>

                                       31
<PAGE>

                                 Exhibit 1.2c
                                 ------------

<TABLE>
<CAPTION>                                                                         Increase for
                                                                 Unitcost         Stand Alone
                                                                 --------         ------------
<S>                               <C>                            <C>              <C>
Property                          based on $M of Plant             $380             $ 38,349

General/Excess Liability/D&O                                       $398             $178,702
                                                                                    --------
                                  based on employees
                                                                                    $217,051

Combination Employees                              582    Stand Alone Employees=        1031
</TABLE>

                                       32
<PAGE>

                                 Exhibit 1.2d
                                 ------------

<TABLE>
<CAPTION>
Director's Fees                                      Allocated   Increase for
- ---------------                                      Actual Gas  Stand Alone
                                                     ----------  ------------
<S>                                                  <C>         <C>
Number                                           11
Fee                                     $    56,728
                                        -----------
Cost                                    $   624,008     $42,177    $  581,831

Basis 923 acct Outside Services employed
- ----------------------------------------
electric=                               $29,258,641  gas=          $1,977,598  0.067590221
</TABLE>

                                       33
<PAGE>

                                 Exhibit 1.2e
                                 ------------

Corporate Vehicles Allowance
- ----------------------------

<TABLE>
<S>                               <C>                               <C>                             <C>
                                  $228 per admin and general employee
Increase in Corporate Vehicles Expenses=                                                            $32,185
Current A&G Employees=                                              58  Stand Alone A&G Employess=
</TABLE>

                                       34
<PAGE>

                                 Exhibit 1.2f
                                 ------------

Transition Costs
- ----------------

<TABLE>
<S>                                                                              <C>
a. Internal/External Communications                                              $5,000,000
based on customers 1998 PUC Commission Report
Gas                                                                                 415,437
Total PECO(assume electric customers incl gas) and Unicom                         4,894,356
                                                                                 ----------

Estimate for Gas Stand alone                                                     $  424,404

b. Audit and Other Accounting Costs for separation                               $1,000,000
c. Investment Banker Fees                                                        $2,500,000
d. Legal Fees                                                                    $  750,000
e. Internal Resources to Support Divestiture                                     $  500,000
f. Human Resource Divestiture Issues, establish benefits                         $  500,000
                                                                                 ----------

                                                                                 $5,674,404
Annual Amortization ofTransition Costs over a ten year period=                   $  567,440

Assume a ten year writeoff                                                               10
- --------------------------
</TABLE>

                                       35
<PAGE>

                                 Exhibit 1.2g
                                 ------------

Meter Reading Expenses
- ----------------------

<TABLE>
<CAPTION>
                                                          Year End   Stand Alone  Increase for
                                           1998           Customers    Gas Cost    Stand Alone
                                           ----           ---------    --------    -----------
<S>                                     <C>               <C>         <C>          <C>
Electric                                $15,477,122       1,494,356
Gas                                     $ 1,987,054         415,437   $4,855,111    $2,868,057
                                        -----------

Total                                   $17,464,176
</TABLE>

Allocation based on gas customer/total customer on
total meter reading expense

                                       36
<PAGE>

                                 Exhibit 1.2h
                                 ------------

Postage Expense on Customer Bills
- ---------------------------------

<TABLE>
<S>                                                    <C>                          <C>           <C>
Presorted First Class                                                                      0.23
Cumul. 1998 Customers                                                                 4,918,296   avg PUC Report x 12
                                                                                    -----------

Stand Alone Estimated Postage Expense
for Gas Bills                                                                       $ 1,131,208

Cumulative Customers in 1998                                                         17,866,980   avg PUC Report x 12
Presorted First Class                                                                      0.23
                                                                                    -----------
Estimated 1998 Postage for Bills                                                    $ 4,109,405

Postage is in 903, 1903 Acct-Customer Records and Collection Expenses
1998 Value for Electric                                $62,050,945                        87.14%                   $3,580,929
1998 Value for Gas                                     $ 9,157,514                        12.86%                   $  528,476
                                                       -----------                  -----------                    ----------
Total                                                  $71,208,459                       100.00%                   $4,109,405

Increase in Postage Expense for                                                     $ 1,131,208
Stand Alone Gas Bills                                        less:                  $   528,476
                                                                                    -----------
                                                               Net                  $   602,732
</TABLE>

                                       37
<PAGE>

                                 Exhibit 1.2i
                                 ------------
           PECO Energy Distribution (PED) Common Plant, Depreciation
           ---------------------------------------------------------
                    and Deferred Taxes at December 31, 1998
                    ---------------------------------------

Replacement Calculated                       Actual to Gas
- ----------------------                       -------------
Reserve                       $ 2,355,184    $19,247,000
Orig Cost Plant               $73,688,905    $59,547,000
Annual Book Depr              $ 2,355,184    $   935,000
First Year Tax Savings        $ 1,472,769    $   555,605
First Year Deferred Taxes     $ 1,242,271    $     7,000
Accum Def Taxes               $ 1,242,271    $ 2,246,000

<TABLE>
<CAPTION>
                                                                                                                          Cost
                                                                                                                       Escalation
FERC      Plant Acct     Designation    Description                                                     Value            Factor
- ------    ----------     ----------     -----------                                                     -----            ------
<S>       <C>            <C>            <C>                                     <C>                 <C>                <C>
4303.0       106         601            GIS                                     $   764,045.00      $    764,045                 1
4303.0       106         601            RISE                                    $ 1,708,684.29      $  1,708,684                 1
4303.0       106         601            RISE                                    $ 7,214,735.77      $  7,214,736                 1
4303.0       106         601            Work Mgt                                $ 6,001,370.22      $  6,001,370                 1
4389.0       101         0397           Perkiomen Serv Ctr                      $     6,667.23      $      6,667        2.43028565
4389.1       101         0357           Ardmore Serv Bldg                       $   242,668.43      $    242,668        2.43028565
4389.1       101         0389           Ardmore Serv Bldg Parking Lot           $    42,219.61      $     42,220        2.43028565
4389.1       101         0328           Bryn Mawr Storage Yard                  $     8,271.29      $      8,271        2.43028565
4389.1       101         0370           Central Storehouse                      $    11,420.08      $     11,420        2.43028565
4389.1       101         0330           Chester Serv Bldg                       $    19,878.66      $     19,879        2.43028565
4389.1       101         0334           Crosby Parking Lot                      $    36,816.44      $     36,816        2.43028565
4389.1       101         0353           Doylestown Serv Bldg                    $    61,320.78      $     61,321        2.43028565
4389.1       101         0396           Kennett Square Trouble station          $       164.01      $        164        2.43028565
4389.1       101         0380           Morton Serv Bldg                        $    76,956.21      $     76,956        2.43028565
4389.1       101         0343           Morton Storage Yard                     $     2,022.72      $      2,023        2.43028565
4389.1       101         0351           North wales Serv Bldg                   $    25,738.68      $     25,739        2.43028565
4389.1       101         0356           Oreland Serv Bldg                       $    10,847.54      $     10,848        2.43028565
4389.1       101         0345           Phoenixville Serv Bldg                  $    17,556.24      $     17,556        2.43028565
4389.1       101         0337           Planebrook Service Ctr Replacement      $    38,300.35      $     38,300        2.43028565
4389.1       101         0346           Pottstown Serv Bldg                     $    12,242.37      $     12,242        2.43028565
4389.1       101         0355           Transportation Ctr                      $   182,076.73      $    182,077        2.43028565
4389.1       101         0339           Valley Forge Radio Substation           $    30,841.89      $     30,842        2.43028565
4389.1       101         0352           Warminster Serv Bldg                    $   246,712.23      $    246,712        2.43028565
4389.1       101         0358           Wayne Storage Yard                      $     1,800.07      $      1,800        2.43028565
4389.1       101         0359           West Chester Serv Bldg                  $   706,472.31      $    706,472        2.43028565
4389.1       101         0388           West Grove Serv Bldg                    $    12,103.38      $     12,103        2.43028565
4389.1       106         0390           Delaware County Serv Ctr                $ 4,251,939.75      $  4,251,940        2.43028565
4389.2       101         0355           Transportation Ctr                      $     4,088.40      $      4,088        2.43028565
4389.2       101         0339           Valley Forge Radio Substation           $     1,285.08      $      1,285        2.43028565
4389.2       101         0358           Wayne Storage Yard                      $       100.00      $        100        2.43028565
4390.0       106         601            Christian Street Service Building       $   292,600.30      $    292,600        2.43028565
4390.0       106         601            DMACS - 1                               $   193,971.41      $    193,971        2.43028565
4390.0       106         503            MOB Call Center construction            $ 4,677,874.05      $  4,677,874        2.43028565
4390.0       106         601            Replacement of Gas Heaters              $   164,371.02      $    164,371        2.43028565
4390.0       106         601            Transportation                          $       700.22      $        700        2.43028565
4390.0       101         0357           Ardmore Serv Bldg                       $ 2,856,593.06      $  2,856,593        2.43028565
4390.0       101         0389           Ardmore Serv Bldg Parking Lot           $   109,581.54      $    109,582        2.43028565
4390.0       101         0328           Bryn Mawr Storage Yard                  $    10,070.34      $     10,070        2.43028565
4390.0       101         0370           Central Storehouse                      $ 3,808,078.18      $  3,808,078        2.43028565
4390.0       101         0330           Chester Serv Bldg                       $   755,417.34      $    755,417        2.43028565
4390.0       101         0392           Concord Reporting Trailer               $    36,230.03      $     36,230        2.43028565
4390.0       101         0353           Doylestown Serv Bldg                    $   427,506.62      $    427,507        2.43028565
4390.0       101         0391           Emilie Service Ctr                      $     2,782.50      $      2,783        2.43028565
4390.0       101         0376           General Meter Shop                      $   793,831.91      $    793,832        2.43028565
4390.0       101         0396           Kennett Square Trouble station          $    10,976.12      $     10,976        2.43028565
4390.0       101         0380           Morton Serv Bldg                        $ 2,339,523.04      $  2,339,523        2.43028565
4390.0       101         0343           Morton Storage Yard                     $     2,782.52      $      2,783        2.43028565
4390.0       101         0351           North wales Serv Bldg                   $   946,750.58      $    946,751        2.43028565
4390.0       101         0349           OHT Bldg                                $    11,729.63      $     11,730        2.43028565
4390.0       101         0356           Oreland Serv Bldg                       $   462,023.73      $    462,024        2.43028565
4390.0       101         0397           Perkiomen Serv Ctr                      $   535,326.62      $    535,327        2.43028565
4390.0       101         0345           Phoenixville Serv Bldg                  $   920,055.95      $    920,056        2.43028565
4390.0       101         0337           Planebrook Service Ctr Replacement      $ 6,470,833.45      $  6,470,833        2.43028565
4390.0       101         0329           Plymouth Sub Training Yard              $   933,409.60      $    933,410        2.43028565
4390.0       101         0346           Pottstown Serv Bldg                     $   190,666.56      $    190,667        2.43028565
4390.0       101         0355           Transportation Ctr                      $ 5,054,593.55      $  5,054,594        2.43028565
4390.0       101         0352           Warminster Serv Bldg                    $ 7,685,916.96      $  7,685,917        2.43028565
4390.0       101         0358           Wayne Storage Yard                      $     1,061.52      $      1,062        2.43028565
4390.0       101         0359           West Chester Serv Bldg                  $ 2,096,981.67      $  2,096,982        2.43028565
4390.0       101         0629           West Conshohocken Gas Plant             $   938,798.01      $    938,798        2.43028565
4390.0       101         0388           West Grove Serv Bldg                    $   819,292.25      $    819,292        2.43028565
4390.0       106         0357           Ardmore Serv Bldg                       $   176,977.06      $    176,977        2.43028565
4390.0       106         0370           Central Storehouse                      $   451,303.31      $    451,303        2.43028565
4390.0       106         0330           Chester Serv Bldg                       $    10,768.00      $     10,768        2.43028565
4390.0       106         0373           Christian Street Serv Bldg              $   856,904.26      $    856,904        2.43028565
4390.0       106         0390           Delaware County Serv Ctr                $ 7,139,064.88      $  7,139,065        2.43028565
4390.0       106         0353           Doylestown Serv Bldg                    $     9,154.71      $      9,155        2.43028565
4390.0       106         0045           Eastern div                             $    17,481.65      $     17,482        2.43028565
4390.0       106         0391           Emilie Service Ctr                      $ 2,200,860.19      $  2,200,860        2.43028565
4390.0       106         0376           General Meter Shop                      $    95,214.39      $     95,214        2.43028565
4390.0       106         0321           Luzerne Serv Bldg                       $     2,669.00      $      2,669        2.43028565
4390.0       106         0380           Morton Serv Bldg                        $17,850,189.75      $ 17,850,190        2.43028565
4390.0       106         0345           Phoenixville Serv Bldg                  $     5,247.50      $      5,248        2.43028565
4390.0       106         0337           Planebrook Service Ctr Replacement      $ 5,944,299.74      $  5,944,300        2.43028565
4390.0       106         0355           Transportation Ctr                      $   115,728.80      $    115,729        2.43028565
4390.0       106         4720           Tully Substation                        $     5,213.00      $      5,213        2.43028565
4390.0       106         0352           Warminster Serv Bldg                    $   789,446.86      $    789,447        2.43028565

<CAPTION>
                                                                                       0.41494        0.35        Allocation
                Repacement        Book         Annual         Tax       First Year      Income     First Year       to Gas
                   Cost        Depreciation      Book     Depreciation     Tax           Tax        Deferred        Stand
FERC              Value           Rate       Depreciation    Rate      Depreciation    Savings       Taxes          Alone
- ------            -----           ----       ------------    ----      ------------    -------       -----          -----
<S>         <C>                <C>           <C>          <C>          <C>            <C>          <C>              27.80%
4303.0      $    764,045.00         0.1143   $    87,330          0.2   $   152,809   $   63,407   $   53,483       27.80%
4303.0      $  1,708,684.29         0.1143   $   195,303          0.2   $   341,737   $  141,800   $  119,608       27.80%
4303.0      $  7,214,735.77         0.1143   $   824,644          0.2   $ 1,442,947   $  598,736   $  505,031       27.80%
4303.0      $  6,001,370.22         0.1143   $   685,957          0.2   $ 1,200,274   $  498,042   $  420,096       31.03%
4389.0      $     16,203.27              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $    589,753.60              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $    102,605.71              0   $         0            0   $         0   $        0   $        0       21.75%
4389.1      $     20,101.60              0   $         0            0   $         0   $        0   $        0       21.75%
4389.1      $     27,754.06              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     48,310.82              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     89,474.47              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $    149,027.01              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $        398.59              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $    187,025.57              0   $         0            0   $         0   $        0   $        0       21.75%
4389.1      $      4,915.79              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     62,552.34              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     26,362.62              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     42,666.68              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     93,080.79              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     29,752.46              0   $         0            0   $         0   $        0   $        0       14.67%
4389.1      $    442,498.46              0   $         0            0   $         0   $        0   $        0        0.00%
4389.1      $     74,954.60              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $    599,581.19              0   $         0            0   $         0   $        0   $        0       21.75%
4389.1      $      4,374.68              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $  1,716,929.52              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $     29,414.67              0   $         0            0   $         0   $        0   $        0       31.03%
4389.1      $ 10,333,428.17              0   $         0            0   $         0   $        0   $        0       14.67%
4389.2      $      9,935.98              0   $         0            0   $         0   $        0   $        0
4389.2      $      3,123.11              0   $         0            0   $         0   $        0   $        0       21.75%
4389.2      $        243.03              0   $         0            0   $         0   $        0   $        0
4390.0      $    711,102.31     0.01967026   $    13,988   0.01587302   $    11,287   $    4,683   $    3,950
4390.0      $    471,405.93     0.01967026   $     9,273   0.01587302   $     7,483   $    3,105   $    2,619        0.00%
4390.0      $ 11,368,570.18     0.01967026   $   223,623   0.01587302   $   180,453   $   74,877   $   63,159       00.00%
4390.0      $    399,468.53     0.01967026   $     7,858   0.01587302   $     6,341   $    2,631   $    2,219       14.67%
4390.0      $      1,701.73     0.01967026   $        33   0.01587302   $        27   $       11   $        9       31.03%
4390.0      $  6,942,337.13     0.01967026   $   136,558   0.01587302   $   110,196   $   45,725   $   38,569       31.03%
4390.0      $    266,314.44     0.01967026   $     5,238   0.01587302   $     4,227   $    1,754   $    1,479       21.75%
4390.0      $     24,473.80     0.01967026   $       481   0.01587302   $       388   $      161   $      136       21.75%
4390.0      $  9,254,717.76     0.01967026   $   182,043   0.01587302   $   146,900   $   60,955   $   51,415       31.03%
4390.0      $  1,835,879.92     0.01967026   $    36,112   0.01587302   $    29,141   $   12,092   $   10,199       31.03%
4390.0      $     88,049.32     0.01967026   $     1,732   0.01587302   $     1,398   $      580   $      489       31.03%
4390.0      $  1,038,963.20     0.01967026   $    20,437   0.01587302   $    16,491   $    6,843   $    5,772       31.03%
4390.0      $      6,762.27     0.01967026   $       133   0.01587302   $       107   $       44   $       37       31.03%
4390.0      $  1,929,238.30     0.01967026   $    37,949   0.01587302   $    30,623   $   12,707   $   10,718       31.03%
4390.0      $     26,675.11     0.01967026   $       525   0.01587302   $       423   $      176   $      148       31.03%
4390.0      $  5,685,709.28     0.01967026   $   111,839   0.01587302   $    90,249   $   37,448   $   31,587       21.75%
4390.0      $      6,762.32     0.01967026   $       133   0.01587302   $       107   $       44   $       37       31.03%
4390.0      $  2,300,874.35     0.01967026   $    45,259   0.01587302   $    36,522   $   15,154   $   12,783
4390.0      $     28,506.35     0.01967026   $       561   0.01587302   $       452   $      188   $      158       31.03%
4390.0      $  1,122,849.64     0.01967026   $    22,087   0.01587302   $    17,823   $    7,395   $    6,238       31.03%
4390.0      $  1,300,996.60     0.01967026   $    25,591   0.01587302   $    20,651   $    8,569   $    7,228       31.03%
4390.0      $  2,235,998.77     0.01967026   $    43,983   0.01587302   $    35,492   $   14,727   $   12,422       31.03%
4390.0      $ 15,725,973.69     0.01967026   $   309,334   0.01587302   $   249,619   $  103,577   $   87,367       21.75%
4390.0      $  2,268,451.96     0.01967026   $    44,621   0.01587302   $    36,007   $   14,941   $   12,602       31.03%
4390.0      $    463,374.20     0.01967026   $     9,115   0.01587302   $     7,355   $    3,052   $    2,574       14.67%
4390.0      $ 12,284,106.18     0.01967026   $   241,632   0.01587302   $   194,986   $   80,907   $   68,245       31.03%
4390.0      $ 18,678,973.71     0.01967026   $   367,420   0.01587302   $   296,492   $  123,026   $  103,772       21.75%
4390.0      $      2,579.80     0.01967026   $        51   0.01587302   $        41   $       17   $       14       31.03%
4390.0      $  5,096,264.46     0.01967026   $   100,245   0.01587302   $    80,893   $   33,566   $   28,313       00.00%
4390.0      $  2,281,547.33     0.01967026   $    44,879   0.01587302   $    36,215   $   15,027   $   12,675       31.03%
4390.0      $  1,991,114.20     0.01967026   $    39,166   0.01587302   $    31,605   $   13,114   $   11,062       31.03%
4390.0      $    430,104.81     0.01967026   $     8,460   0.01587302   $     6,827   $    2,833   $    2,389       21.75%
4390.0      $  1,096,795.96     0.01967026   $    21,574   0.01587302   $    17,409   $    7,224   $    6,093       31.03%
4390.0      $     26,169.32     0.01967026   $       515   0.01587302   $       415   $      172   $      145
4390.0      $  2,082,522.13     0.01967026   $    40,964   0.01587302   $    33,056   $   13,716   $   11,570       31.03%
4390.0      $ 17,349,966.94     0.01967026   $   341,278   0.01587302   $   275,396   $  114,273   $   96,389       31.03%
4390.0      $     22,248.56     0.01967026   $       438   0.01587302   $       353   $      146   $      124       31.03%
4390.0      $     42,485.40     0.01967026   $       836   0.01587302   $       674   $      280   $      236       31.03%
4390.0      $  5,348,718.94     0.01967026   $   105,211   0.01587302   $    84,900   $   35,228   $   29,715       31.03%
4390.0      $    231,398.17     0.01967026   $     4,552   0.01587302   $     3,673   $    1,524   $    1,286
4390.0      $      6,486.43     0.01967026   $       128   0.01587302   $       103   $       43   $       36       31.03%
4390.0      $ 43,381,060.03     0.01967026   $   853,317   0.01587302   $   688,588   $  285,723   $  241,006       31.03%
4390.0      $     12,752.92     0.01967026   $       251   0.01587302   $       202   $       84   $       71       31.03%
4390.0      $ 14,446,346.37     0.01967026   $   284,163   0.01587302   $   229,307   $   95,149   $   80,257       14.67%
4390.0      $    281,254.04     0.01967026   $     5,532   0.01587302   $     4,464   $    1,852   $    1,562
4390.0      $     12,669.08     0.01967026   $       249   0.01587302   $       201   $       83   $       70       31.03%
4390.0      $  1,918,581.38     0.01967026   $    37,739   0.01587302   $    30,454   $   12,637   $   10,659

<CAPTION>
               (From Replaced and Allocated PED Common Plant)
              -----------------------------------------------
              Gas Stand     Gas Stand    Gas Stand  Gas Stand
                Alone         Alone        Alone      Alone
              Original       Annual        Income   First Year
                Cost          Book          Tax      Deferred
FERC            Plant     Depreciation    Savings     Taxes
- ------
4303.0      $   212,408    $   24,278    $   17,627  $  14,868
4303.0      $   475,021    $   54,295    $   39,421  $  33,252
4303.0      $ 2,005,726    $  229,254    $  166,451  $ 140,401
4303.0      $ 1,668,405    $  190,699    $  138,458  $ 116,788
4389.0      $     5,027    $        0    $        0  $       0
4389.1      $   182,974    $        0    $        0  $       0
4389.1      $    31,834    $        0    $        0  $       0
4389.1      $     4,373    $        0    $        0  $       0
4389.1      $     6,037    $        0    $        0  $       0
4389.1      $    14,989    $        0    $        0  $       0
4389.1      $    27,760    $        0    $        0  $       0
4389.1      $    46,236    $        0    $        0  $       0
4389.1      $       124    $        0    $        0  $       0
4389.1      $    58,025    $        0    $        0  $       0
4389.1      $     1,069    $        0    $        0  $       0
4389.1      $    19,407    $        0    $        0  $       0
4389.1      $     8,179    $        0    $        0  $       0
4389.1      $    13,238    $        0    $        0  $       0
4389.1      $    28,879    $        0    $        0  $       0
4389.1      $     9,231    $        0    $        0  $       0
4389.1      $    64,907    $        0    $        0  $       0
4389.1      $         0    $        0    $        0  $       0
4389.1      $   186,023    $        0    $        0  $       0
4389.1      $       952    $        0    $        0  $       0
4389.1      $   532,685    $        0    $        0  $       0
4389.1      $     9,126    $        0    $        0  $       0
4389.1      $ 3,205,990    $        0    $        0  $       0
4389.2      $     1,457    $        0    $        0  $       0
4389.2      $         0    $        0    $        0  $       0
4389.2      $        53    $        0    $        0  $       0
4390.0      $         0    $        0    $        0  $       0
4390.0      $         0    $        0    $        0  $       0
4390.0      $         0    $        0    $        0  $       0
4390.0      $   399,469    $    7,858    $    2,631  $   2,219
4390.0      $       250    $        5    $        2  $       1
4390.0      $ 2,153,890    $   42,368    $   14,186  $  11,966
4390.0      $    82,625    $    1,625    $      544  $     459
4390.0      $     5,324    $      105    $       35  $      30
4390.0      $ 2,013,177    $   39,600    $   13,260  $  11,184
4390.0      $   569,590    $   11,204    $    3,752  $   3,164
4390.0      $    27,318    $      537    $      180  $     152
4390.0      $   322,343    $    6,341    $    2,123  $   1,791
4390.0      $     2,098    $       41    $       14  $      11
4390.0      $   598,554    $   11,774    $    3,942  $   3,325
4390.0      $     8,276    $      163    $       55  $      46
4390.0      $ 1,764,016    $   34,699    $   11,618  $   9,800
4390.0      $     1,471    $       29    $       10  $       8
4390.0      $   713,856    $   14,042    $    4,702  $   3,966
4390.0      $         0    $        0    $        0  $       0
4390.0      $   348,369    $    6,853    $    2,294  $   1,935
4390.0      $   403,640    $    7,940    $    2,659  $   2,243
4390.0      $   693,728    $   13,646    $    4,569  $   3,854
4390.0      $ 4,879,051    $   95,972    $   32,135  $  27,106
4390.0      $   493,456    $    9,706    $    3,250  $   2,741
4390.0      $   143,764    $    2,828    $      947  $     799
4390.0      $ 1,801,873    $   35,443    $   11,868  $  10,010
4390.0      $ 5,795,232    $  113,994    $   38,169  $  32,196
4390.0      $       561    $       11    $        4  $       3
4390.0      $ 1,581,138    $   31,101    $   10,414  $   8,784
4390.0      $ 2,281,547    $   44,879    $   15,027  $  12,675
4390.0      $   617,752    $   12,151    $    4,069  $   3,432
4390.0      $   133,442    $    2,625    $      879  $     741
4390.0      $   238,586    $    4,693    $    1,571  $   1,325
4390.0      $     8,119    $      160    $       53  $      45
4390.0      $         0    $        0    $        0  $       0
4390.0      $ 5,382,902    $  105,883    $   35,454  $  29,905
4390.0      $     6,903    $      136    $       45  $      38
4390.0      $    13,181    $      259    $       87  $      73
4390.0      $ 1,659,463    $   32,642    $   10,930  $   9,219
4390.0      $    71,792    $    1,412    $      473  $     399
4390.0      $         0    $        0    $        0  $       0
4390.0      $13,459,160    $  264,745    $   88,647  $  74,773
4390.0      $     3,957    $       78    $       26  $      22
4390.0      $ 4,482,041    $   88,163    $   29,520  $  24,900
4390.0      $    41,255    $      811    $      272  $     229
4390.0      $         0    $        0    $        0  $       0
4390.0      $   595,248    $   11,709    $    3,921  $   3,307
</TABLE>

                                       38
<PAGE>

<TABLE>
<CAPTION>
                                                                                                         Replacement
                                                                                                     Cost        Replacement
                                                                                                  Escalation        Cost
                                                                                 Value             Factor          Value
                                                                                 -----             ------          -----
<S>       <C>      <C>   <C>                                      <C>              <C>            <C>         <C>
4393.0    101      0359  West Chester Serv Bldg                       ($4,313.00)       ($4,313)  1.46034359       ($6,298.46)
4393.0    106      0370  Central Storehouse                       $    19,574.26   $     19,574   1.46034359  $     28,585.15
4393.0    106      0349  OHT Bldg                                 $    12,087.32   $     12,087   1.46034359  $     17,651.64
4394.1    106       601  DELCHESTER Capital Tools and Equipment   $    13,609.89   $     13,610   1.01944328  $     13,874.51
4394.3    106       601  Replace shop equipment.                  $   535,154.73   $    535,155   1.02434332  $    548,182.17
4394.3    101      0357  Ardmore Serv Bldg                        $   389,930.70   $    389,931   1.02434332  $    399,422.91
4394.3    101      0330  Chester Serv Bldg                        $    61,114.22   $     61,114   1.02434332  $     62,601.94
4394.3    101      0373  Christian Street Serv Bldg               $    55,987.60   $     55,988   1.02434332  $     57,350.52
4394.3    101      0353  Doylestown Serv Bldg                     $    80,169.21   $     80,169   1.02434332  $     82,120.79
4394.3    101      0313  Gaul T&D                                 $    21,644.00   $     21,644   1.02434332  $     22,170.89
4394.3    101      0316  Germantown Serv Bldg                     $    82,139.33   $     82,139   1.02434332  $     84,138.87
4394.3    101      0321  Luzerne Serv Bldg                        $   203,607.31   $    203,607   1.02434332  $    208,563.79
4394.3    101      0380  Morton Serv Bldg                         $   406,389.08   $    406,389   1.02434332  $    416,281.94
4394.3    101      0351  North wales Serv Bldg                    $    67,485.62   $     67,486   1.02434332  $     69,128.44
4394.3    101      0349  OHT Bldg                                 $     5,136.32   $      5,136   1.02434332  $      5,261.36
4394.3    101      0356  Oreland Serv Bldg                        $    61,174.28   $     61,174   1.02434332  $     62,663.47
4394.3    101      0397  Perkiomen Serv Ctr                       $    41,533.79   $     41,534   1.02434332  $     42,544.86
4394.3    101      0345  Phoenixville Serv Bldg                   $   205,845.25   $    205,845   1.02434332  $    210,856.21
4394.3    101      0337  Planebrook Service Ctr Replacement       $   322,131.97   $    322,132   1.02434332  $    329,973.73
4394.3    101      0315  Shunk Serv Bldg                          $    23,539.10   $     23,539   1.02434332  $     24,112.12
4394.3    101      0355  Transportation Ctr                       $   371,037.85   $    371,038   1.02434332  $    380,070.14
4394.3    101      0352  Warminster Serv Bldg                     $   176,245.59   $    176,246   1.02434332  $    180,535.99
4394.3    101      0359  West Chester Serv Bldg                   $   117,766.60   $    117,767   1.02434332  $    120,633.43
4394.3    101      0629  West Conshohocken Gas Plant              $    69,047.55   $     69,048   1.02434332  $     70,728.40
4394.3    101      0388  West Grove Serv Bldg                     $    61,604.82   $     61,605   1.02434332  $     63,104.49
4394.3    106      0390  Delaware County Serv Ctr                 $   361,289.72   $    361,290   1.02434332  $    370,084.71
4394.3    106      0355  Transportation Ctr                       $ 1,450,864.43   $  1,450,864   1.02434332  $  1,486,183.29
4396.1    101      0368  Transportation Ctr                       $    55,285.66   $     55,286   2.00949607  $    111,096.32
4396.2    101      0372  Tools and Work Equipment                 $       937.91   $        938   3.64925373  $      3,422.67
4397.0    106       601  Fiber for Cromby\Whitpain\North Wales    $   203,524.78   $    203,525   1.04311419  $    212,299.59
4397.0    106       601  Interactive voice response system        $ 2,956,908.27   $  2,956,908   1.04311419  $  3,084,392.99
4397.0    106       601  Static wire for Morton\Mcdade\Eddystone  $   304,567.83   $    304,568   1.04311419  $    317,699.03
4397.0    101      0270  Amquip Inc Tower Site                    $    72,608.08   $     72,608   1.04311419  $     75,738.52
4397.0    101      0271  Amram Tower Site                         $    86,290.68   $     86,291   1.04311419  $     90,011.03
4397.0    101      0274  AT&T Tower Site                          $   114,668.97   $    114,669   1.04311419  $    119,612.83
4397.0    101      0273  AT&T Tower Site                          $   137,368.82   $    137,369   1.04311419  $    143,291.37
4397.0    101      0272  Delta Tower Site                         $   143,474.49   $    143,474   1.04311419  $    149,660.28
4397.0    101      0276  Micro TV Tower                           $    71,531.53   $     71,532   1.04311419  $     74,615.55
4397.0    101      0380  Morton Serv Bldg                         $    28,893.25   $     28,893   1.04311419  $     30,138.96
4397.0    101      0337  Planebrook Service Ctr Replacement       $   300,427.38   $    300,427   1.04311419  $    313,380.06
4397.0    101      0277  USTS Tower Site                          $    89,727.07   $     89,727   1.04311419  $     93,595.58
4397.0    101      0339  Valley Forge Radio Substation            $    16,014.99   $     16,015   1.04311419  $     16,705.46
4397.0    101      0275  WKSZ Tower Site                          $   103,906.76   $    103,907   1.04311419  $    108,386.62
4398.0    106       601  EM Electric Field Tech                   $    77,895.00   $     77,895   1.17898805  $     91,837.27
                                                                                   ------------               ---------------
             Total PED Common Plant                                                $156,558,242               $283,617,897.20

<CAPTION>
                                                                   0.41494       0.35
             Book          Annual        Tax        First Year      Income     First Year
          Depreciation      Book      Depreciation      Tax          Tax       Deferred
             Rate       Depreciation     Rate       Depreciation    Savings      Taxes
             ----       ------------     ----       ------------  -----------    -----
<S>        <C>          <C>            <C>         <C>            <C>          <C>          <C>         <C>            <C>
4393.0     0.04350409         ($274)       0.2         ($1,260)        ($523)       ($441)   31.03%        ($1,9540)         ($85)
4393.0     0.04350409   $     1,244        0.2     $     5,717    $    2,372   $    2,001    21.75%     $     6,218    $      271
4393.0     0.04350409   $       768        0.2     $     3,530    $    1,465   $    1,236     0.00%     $         0    $        0
4394.1      0.0478635   $       664        0.2     $     2,775    $    1,151   $      971    21.75%     $     3,018    $      144
4394.3      0.0435957   $    23,898        0.2     $   109,636    $   45,492   $   38,373    21.75%     $   119,246    $    5,199
4394.3      0.0435957   $    17,413        0.2     $    79,885    $   33,147   $   27,960    31.03%     $   123,923    $    5,402
4394.3      0.0435957   $     2,729        0.2     $    12,520    $    5,195   $    4,382    31.03%     $    19,423    $      847
4394.3      0.0435957   $     2,500        0.2     $    11,470    $    4,759   $    4,015               $         0    $        0
4394.3      0.0435957   $     3,580        0.2     $    16,424    $    6,815   $    5,748    31.03%     $    25,478    $    1,111
4394.3      0.0435957   $       967        0.2     $     4,434    $    1,840   $    1,552               $         0    $        0
4394.3      0.0435957   $     3,668        0.2     $    16,828    $    6,983   $    5,890               $         0    $        0
4394.3      0.0435957   $     9,092        0.2     $    41,713    $   17,308   $   14,600               $         0    $        0
4394.3      0.0435957   $    18,148        0.2     $    83,256    $   34,546   $   29,140    31.03%     $   129,153    $    5,630
4394.3      0.0435957   $     3,014        0.2     $    13,826    $    5,737   $    4,839    31.03%     $    21,447    $      935
4394.3      0.0435957   $       229        0.2     $     1,052    $      437   $      368               $         0    $        0
4394.3      0.0435957   $     2,732        0.2     $    12,533    $    5,200   $    4,387    31.03%     $    19,442    $      848
4394.3      0.0435957   $     1,855        0.2     $     8,509    $    3,531   $    2,978    31.03%     $    13,200    $      576
4394.3      0.0435957   $     9,192        0.2     $    42,171    $   17,498   $   14,760    31.03%     $    65,419    $    2,852
4394.3      0.0435957   $    14,385        0.2     $    65,995    $   27,384   $   23,098    31.03%     $   102,376    $    4,463
4394.3      0.0435957   $     1,051        0.2     $     4,822    $    2,001   $    1,688     0.00%     $         0    $        0
4394.3      0.0435957   $    16,569        0.2     $    76,014    $   31,541   $   26,605    14.67%     $    55,750    $    2,430
4394.3      0.0435957   $     7,871        0.2     $    36,107    $   14,982   $   12,637    31.03%     $    56,012    $    2,442
4394.3      0.0435957   $     5,259        0.2     $    24,127    $   10,011   $    8,444    31.03%     $    37,427    $    1,632
4394.3      0.0435957   $     3,083        0.2     $    14,146    $    5,870   $    4,951   100.00%     $    70,728    $    3,083
4394.3      0.0435957   $     2,751        0.2     $    12,621    $    5,237   $    4,417    31.03%     $    19,578    $      854
4394.3      0.0435957   $    16,134        0.2     $    74,017    $   30,713   $   25,906    31.03%     $   114,820    $    5,006
4394.3      0.0435957   $    64,791        0.2     $   297,237    $  123,336   $  104,033    14.67%     $   217,998    $    9,504
4396.1     0.00034367   $        38        0.2     $    22,219    $    9,220   $    7,777    14.67%     $    16,296    $        6
4396.2            0.1   $       342        0.2     $       685    $      284   $      240    21.75%     $       745    $       74
4397.0     0.04066793   $     8,634        0.2     $    42,460    $   17,618   $   14,861               $         0    $        0
4397.0     0.04066793   $   125,436        0.2     $   616,879    $  255,968   $  215,908    14.67%     $   452,429    $   18,399
4397.0     0.04066793   $    12,920        0.2     $    63,540    $   26,365   $   22,239     0.00%     $         0    $        0
4397.0     0.04066793   $     3,080        0.2     $    15,148    $    6,286   $    5,302               $         0    $        0
4397.0     0.04066793   $     3,661        0.2     $    18,002    $    7,470   $    6,301               $         0    $        0
4397.0     0.04066793   $     4,864        0.2     $    23,923    $    9,927   $    8,373               $         0    $        0
4397.0     0.04066793   $     5,827        0.2     $    28,658    $   11,891   $   10,030               $         0    $        0
4397.0     0.04066793   $     6,086        0.2     $    29,932    $   12,420   $   10,476               $         0    $        0
4397.0     0.04066793   $     3,034        0.2     $    14,923    $    6,192   $    5,223               $         0    $        0
4397.0     0.04066793   $     1,226        0.2     $     6,028    $    2,501   $    2,110    31.03%     $     9,351    $      380
4397.0     0.04066793   $    12,745        0.2     $    62,676    $   26,007   $   21,937    31.03%     $    97,228    $    3,954
4397.0     0.04066793   $     3,806        0.2     $    18,719    $    7,767   $    6,552               $         0    $        0
4397.0     0.04066793   $       679        0.2     $     3,341    $    1,386   $    1,169               $         0    $        0
4397.0     0.04066793   $     4,408        0.2     $    21,677    $    8,995   $    7,587               $         0    $        0
4398.0        0.05882   $     5,402        0.2     $    18,367    $    7,621   $    6,428               $         0    $        0
                        -----------                -----------    ----------   ----------               -----------    ----------
                        $10,250,869                $17,616,074    $7,309,608   $6,165,629               $73,688,905    $2,355,184

<CAPTION>
<S>         <C>                <C>
4393.0           ($162)             ($137)
4393.0      $      516         $      435
4393.0      $        0         $        0
4394.1      $      250         $      211
4394.3      $    9,896         $    8,347
4394.3      $   10,284         $    8,675
4394.3      $    1,612         $    1,360
4394.3      $        0         $        0
4394.3      $    2,114         $    1,783
4394.3      $        0         $        0
4394.3      $        0         $        0
4394.3      $        0         $        0
4394.3      $   10,718         $    9,041
4394.3      $    1,780         $    1,501
4394.3      $        0         $        0
4394.3      $    1,613         $    1,361
4394.3      $    1,096         $      924
4394.3      $    5,429         $    4,579
4394.3      $    8,496         $    7,166
4394.3      $        0         $        0
4394.3      $    4,627         $    3,903
4394.3      $    4,648         $    3,921
4394.3      $    3,106         $    2,620
4394.3      $    5,870         $    4,951
4394.3      $    1,625         $    1,370
4394.3      $    9,529         $    8,037
4394.3      $   18,091         $   15,260
4396.1      $    1,352         $    1,141
4396.2      $       62         $       52
4397.0      $        0         $        0
4397.0      $   37,546         $   31,670
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $      776         $      655
4397.0      $    8,069         $    6,806
4397.0      $        0         $        0
4397.0      $        0         $        0
4397.0      $        0         $        0
4398.0      $        0         $        0
            ----------         ----------
            $1,472,769         $1,242,271
</TABLE>
<PAGE>

                                 Exhibit 1.2j
                                 ------------

<TABLE>
<CAPTION>
                                     Start Up/Incremental IT Infrastructure Gas Costs
                                     ------------------------------------------------
       Plant, OandM, Depreciation, Deferred Taxes          Start Up     O&M/Yr   Capital/Yr  Book Dep  Tax Dep  Start Up   Start Up
       ------------------------------------------
                      0.41494                               Capital  (Thousand$) (Thousand$)   Rate      Rate    Capital   Capital
                                                           --------- ----------- ----------  --------  -------  ---------  Tax Dep
                        0.35                              (Thousand$)                              (Thousand$)             --------
                                                          -----------                              -----------           (Thousand$)
<S>                                                        <C>        <C>         <C>         <C>       <C>      <C>
Asset Requirement
- -----------------
Servers (Apps, Database, File, Print)                       $    750     $   250    $   100  0.379046      0.2    $   284  $   150
Servers (DHCP/DNS, Firewall)                                $    400     $   100    $    50  0.379046      0.2    $   152  $    80
WAN (Router & Hub Network)                                  $  1,000     $   200    $   150  0.379046      0.2    $   379  $   200
Personal Computer Hardware                                  $  2,750     $     0    $   300  0.379046      0.2    $ 1,042  $   550
Deskside Management Services                                $      0     $   100    $     0  0.379046      0.2    $     0  $     0
Printer Hardware                                            $    200     $    50    $    50  0.379046      0.2    $    76  $    40
Client Software / Desktop Apps                              $  1,500     $    50    $   250  0.379046      0.2    $   569  $   300
Telephone Systems                                           $    600     $   400    $   250  0.040668      0.2    $    24  $   120
Call Center Telephone Systems                               $    300     $    50    $   250  0.040668      0.2    $    12  $    60
Dispatch Radio (Trunked Radio System)                       $ 18,000     $ 1,000    $   300  0.040668      0.2    $   732  $ 3,600
Other Wireless Services (Cellular & Paging)                 $    100     $   300    $     0  0.040668      0.2    $     4  $    20
DOC Infrastructure Systems                                  $    400     $   100    $     0  0.379046      0.2    $   152  $    80
Video Systems                                               $    200     $    50    $     0  0.379046      0.2    $    76  $    40
Server Software / Apps                                      $    250     $   100    $   100  0.379046      0.2    $    95  $    50
Network Data Facilities                                     $    100     $   200    $     0  0.379046      0.2    $    38  $    20
Network Voice Facilities                                    $    100     $   250    $     0  0.379046      0.2    $    38  $    20
Other IT User & Infrastructure Hardware                     $    300     $   100    $   100  0.379046      0.2    $   114  $    60
ISP Services                                                $    250     $   100    $     0  0.379046      0.2    $    95  $    50
Power & Environmental Conditioning Systems                  $  1,000     $    50    $     0  0.379046      0.2    $   379  $   200
Cabling / Transport Infrastructure                          $    400     $   750    $     0  0.040668      0.2    $    16  $    80
Demand Labor                                                $  2,500     $   200    $     0  0.379046      0.2    $   948  $   500
Helpdesk Services                                           $    250     $   400    $     0  0.379046      0.2    $    95  $    50
Outside Consulting Services                                 $    750     $   250    $     0  0.379046      0.2    $   284  $   150
                                                            --------     -------    -------                       -------  -------

Asset Requirements Subtotal                                 $ 32,100     $ 5,050    $ 1,900                       $ 5,603  $ 6,420


Applications
- ------------
City Gate Solutions                                         $    500     $     0    $     0    0.0988      0.2    $    49  $   100
Gastar III                                                  $    600     $     0    $     0    0.0988      0.2    $    59  $   120
Gas SCADA (Valmet)                                          $    500     $     0    $     0    0.0988      0.2    $    49  $   100
DeltaV                                                      $    100     $     0    $     0    0.0988      0.2    $    10  $    20
Gate Station                                                $    300     $     0    $     0    0.0988      0.2    $    30  $    60
Leak Tracking System                                        $    100     $    17    $     0    0.0988      0.2    $    10  $    20
Corrosion Control System                                    $     50     $    11    $     0    0.0988      0.2    $     5  $    10
Gas Regulator Stations                                      $    100     $     0    $     0    0.0988      0.2    $    10  $    20
Stoner Load Study Workstation                               $    300     $    16    $     0    0.0988      0.2    $    30  $    60
Optimain                                                    $     50     $     0    $     0    0.0988      0.2    $     5  $    10
Oil in the Main                                             $     50     $     0    $     0    0.0988      0.2    $     5  $    10
Mercury Instruments                                         $     50     $     0    $     0    0.0988      0.2    $     5  $    10
GMI Meter Docking Station                                   $    100     $     0    $     0    0.0988      0.2    $    10  $    20
SAMS                                                        $    300     $     0    $     0    0.1143      0.2    $    34  $    60
CIS                                                         $ 10,000     $ 1,510    $     0    0.1143      0.2    $ 1,143  $ 2,000
PAC                                                         $  5,000     $   197    $     0    0.1143      0.2    $   572  $ 1,000
RMS                                                         $    400     $     0    $     0    0.1143      0.2    $    46  $    80
Passport                                                    $  3,500     $   345    $     0    0.1143      0.2    $   400  $   700
Payment Processing                                          $    400     $     0    $     0    0.1143      0.2    $    46  $    80
FOD(gas trouble system)                                     $  1,000     $     0    $     0    0.0988      0.2    $    99  $   200
RISE(CS Work)                                               $  1,000     $    13    $     0    0.1143      0.2    $   114  $   200
UCAD( dispatching)                                          $    500     $    90    $     0    0.1143      0.2    $    57  $   100
CAD                                                         $    500     $     0    $     0    0.1143      0.2    $    57  $   100
Metratek                                                    $    100     $     0    $     0    0.0988      0.2    $    10  $    20
AMS                                                         $    100     $     0    $     0    0.1143      0.2    $    11  $    20
Dispute Tracking                                            $      0     $    10    $     0    0.1143      0.2    $     0  $     0
Pitney Bowes                                                $      0     $     6    $     0    0.1143      0.2    $     0  $     0
Service Order System                                        $      0     $   134    $     0    0.1143      0.2    $     0  $     0
TMS                                                         $      0     $    41    $     0    0.1143      0.2    $     0  $     0
FACTS                                                       $      0     $   501    $     0    0.1143      0.2    $     0  $     0
CLAIMS                                                      $      0     $    23    $     0    0.1143      0.2    $     0  $     0
Company Damage                                              $      0     $     5    $     0    0.1143      0.2    $     0  $     0
EERS                                                        $      0     $    18    $     0    0.1143      0.2    $     0  $     0
Customer Refund                                             $      0     $    19    $     0    0.1143      0.2    $     0  $     0
Customer Theft                                              $      0     $    10    $     0    0.1143      0.2    $     0  $     0
Internet Explorer                                           $      0     $    20    $     0    0.1143      0.2    $     0  $     0
UBET-Gas                                                    $      0     $    20    $     0    0.1143      0.2    $     0  $     0
Enterprise Applications (G/L,A/P,Time and Labor)            $  6,400     $ 1,000    $     0    0.1143      0.2    $   732  $ 1,280
Mainframe & 3Tier Processing                                $  2,000     $ 7,125    $     0    0.1143      0.2    $   229  $   400
Data Conversion Overall - a large data conversion effort    $ 20,000     $     0    $     0    0.1143      0.2    $ 2,286  $ 4,000
 would be required to extract and build into new data       --------     -------    -------                       -------  -------
 formats and data storages.

Applications Subtotal                                       $ 54,000     $11,131    $     0                       $ 6,112  $10,800
                                                            --------     -------    -------                       -------  -------



Total  Standalone Costs                                     $ 86,100     $16,181    $ 1,900                       $11,715  $17,220
- -----------------------

<CAPTION>
                                     Start Up/Incremental IT Infrastructure Gas Costs
                                     ------------------------------------------------
       Plant, OandM, Depreciation, Deferred Taxes              Start Up   Start Up   Capital/Yr  Capital/Yr  Capital/Yr  Capital/Yr
       ------------------------------------------
                         0.41494                                Capital    Capital    Book Dep     Tax Dep    Tax Saving    Taxes
                           0.35                               Tax Savings Def Taxes  (Thousand$) (Thousand$) (Thousand$) (Thousand$)
                                                              ----------- ---------- ----------  ----------- ----------  -----------
                                                              (Thousand$) (Thousand$)
<S>                                                           <C>         <C>        <C>         <C>         <C>         <C>
Asset Requirement
- -----------------
Servers (Apps, Database, File, Print)                              $   62     $   53       $ 38        $ 20     $  8         $  7
Servers (DHCP/DNS, Firewall)                                       $   33     $   28       $ 19        $ 10     $  4         $  4
WAN (Router & Hub Network)                                         $   83     $   70       $ 57        $ 30     $ 12         $ 11
Personal Computer Hardware                                         $  228     $  193       $114        $ 60     $ 25         $ 21
Deskside Management Services                                       $    0     $    0       $  0        $  0     $  0         $  0
Printer Hardware                                                   $   17     $   14       $ 19        $ 10     $  4         $  4
Client Software / Desktop Apps                                     $  124     $  105       $ 95        $ 50     $ 21         $ 18
Telephone Systems                                                  $   50     $   42       $ 10        $ 50     $ 21         $ 18
Call Center Telephone Systems                                      $   25     $   21       $ 10        $ 50     $ 21         $ 18
Dispatch Radio (Trunked Radio System)                              $1,494     $1,260       $ 12        $ 60     $ 25         $ 21
Other Wireless Services (Cellular & Paging)                        $    8     $    7       $  0        $  0     $  0         $  0
DOC Infrastructure Systems                                         $   33     $   28       $  0        $  0     $  0         $  0
Video Systems                                                      $   17     $   14       $  0        $  0     $  0         $  0
Server Software / Apps                                             $   21     $   18       $ 38        $ 20     $  8         $  7
Network Data Facilities                                            $    8     $    7       $  0        $  0     $  0         $  0
Network Voice Facilities                                           $    8     $    7       $  0        $  0     $  0         $  0
Other IT User & Infrastructure Hardware                            $   25     $   21       $ 38        $ 20     $  8         $  7
ISP Services                                                       $   21     $   18       $  0        $  0     $  0         $  0
Power & Environmental Conditioning Systems                         $   83     $   70       $  0        $  0     $  0         $  0
Cabling / Transport Infrastructure                                 $   33     $   28       $  0        $  0     $  0         $  0
Demand Labor                                                       $  207     $  175       $  0        $  0     $  0         $  0
Helpdesk Services                                                  $   21     $   18       $  0        $  0     $  0         $  0
Outside Consulting Services                                        $   62     $   53       $  0        $  0     $  0         $  0
                                                                   ------     ------       ----        ----     ----         ----

Asset Requirements Subtotal                                        $2,664     $2,247       $449        $380     $158         $133



Applications
- ------------
City Gate Solutions                                                $   41     $   35       $  0        $  0     $  0         $  0
Gastar III                                                         $   50     $   42       $  0        $  0     $  0         $  0
Gas SCADA (Valmet)                                                 $   41     $   35       $  0        $  0     $  0         $  0
DeltaV                                                             $    8     $    7       $  0        $  0     $  0         $  0
Gate Station                                                       $   25     $   21       $  0        $  0     $  0         $  0
Leak Tracking System                                               $    8     $    7       $  0        $  0     $  0         $  0
Corrosion Control System                                           $    4     $    4       $  0        $  0     $  0         $  0
Gas Regulator Stations                                             $    8     $    7       $  0        $  0     $  0         $  0
Stoner Load Study Workstation                                      $   25     $   21       $  0        $  0     $  0         $  0
Optimain                                                           $    4     $    4       $  0        $  0     $  0         $  0
Oil in the Main                                                    $    4     $    4       $  0        $  0     $  0         $  0
Mercury Instruments                                                $    4     $    4       $  0        $  0     $  0         $  0
GMI Meter Docking Station                                          $    8     $    7       $  0        $  0     $  0         $  0
SAMS                                                               $   25     $   21       $  0        $  0     $  0         $  0
CIS                                                                $  830     $  700       $  0        $  0     $  0         $  0
PAC                                                                $  415     $  350       $  0        $  0     $  0         $  0
RMS                                                                $   33     $   28       $  0        $  0     $  0         $  0
Passport                                                           $  290     $  245       $  0        $  0     $  0         $  0
Payment Processing                                                 $   33     $   28       $  0        $  0     $  0         $  0
FOD(gas trouble system)                                            $   83     $   70       $  0        $  0     $  0         $  0
RISE(CS Work)                                                      $   83     $   70       $  0        $  0     $  0         $  0
UCAD( dispatching)                                                 $   41     $   35       $  0        $  0     $  0         $  0
CAD                                                                $   41     $   35       $  0        $  0     $  0         $  0
Metratek                                                           $    8     $    7       $  0        $  0     $  0         $  0
AMS                                                                $    8     $    7       $  0        $  0     $  0         $  0
Dispute Tracking                                                   $    0     $    0       $  0        $  0     $  0         $  0
Pitney Bowes                                                       $    0     $    0       $  0        $  0     $  0         $  0
Service Order System                                               $    0     $    0       $  0        $  0     $  0         $  0
TMS                                                                $    0     $    0       $  0        $  0     $  0         $  0
FACTS                                                              $    0     $    0       $  0        $  0     $  0         $  0
CLAIMS                                                             $    0     $    0       $  0        $  0     $  0         $  0
Company Damage                                                     $    0     $    0       $  0        $  0     $  0         $  0
EERS                                                               $    0     $    0       $  0        $  0     $  0         $  0
Customer Refund                                                    $    0     $    0       $  0        $  0     $  0         $  0
Customer Theft                                                     $    0     $    0       $  0        $  0     $  0         $  0
Internet Explorer                                                  $    0     $    0       $  0        $  0     $  0         $  0
UBET-Gas                                                           $    0     $    0       $  0        $  0     $  0         $  0
Enterprise Applications (G/L,A/P,Time and Labor)                   $  531     $  448       $  0        $  0     $  0         $  0
Mainframe & 3Tier Processing                                       $  166     $  140       $  0        $  0     $  0         $  0
Data Conversion Overall - a large data conversion effort           $1,660     $1,400       $  0        $  0     $  0         $  0
 would be required to extract and build into new data              ------     ------       ----        ----     ----         ----
 formats and data storages.

Applications Subtotal                                              $4,481     $3,780       $  0        $  0     $  0         $  0
                                                                   ------     ------       ----        ----     ----         ----



Total Standalone Costs                                             $7,145     $6,027       $449        $380     $158         $133
- ----------------------
</TABLE>
<PAGE>

                                 Exhibit 1.2j
                                 ------------

<TABLE>
<CAPTION>
                                     Start Up/Incremental IT Infrastructure Gas Costs
                                     ------------------------------------------------
       Plant, OandM, Depreciation, Deferred Taxes          Start Up     O&M/Yr   Capital/Yr  Book Dep  Tax Dep  Start Up   Start Up
       ------------------------------------------
                      0.41494                               Capital  (Thousand$) (Thousand$)   Rate      Rate    Capital   Capital
                                                           --------- ----------- ----------  --------  -------  ---------  Tax Dep
                        0.35                              (Thousand$)                              (Thousand$)             --------
                                                          -----------                              -----------           (Thousand$)
<S>                                                        <C>        <C>         <C>         <C>       <C>      <C>
Total 1998 FERC IT Costs                                   $       0     $ 4,499     $1,223
                                                           ---------     -------     ------

Incremental IT Costs                                        $ 86,100     $11,682     $  677                       $11,715   $17,220

<CAPTION>
                                     Start Up/Incremental IT Infrastructure Gas Costs
                                     ------------------------------------------------
       Plant, OandM, Depreciation, Deferred Taxes              Start Up   Start Up   Capital/Yr  Capital/Yr  Capital/Yr  Capital/Yr
       ------------------------------------------
                         0.41494                                Capital    Capital    Book Dep     Tax Dep    Tax Saving    Taxes
                           0.35                               Tax Savings Def Taxes  (Thousand$) (Thousand$) (Thousand$) (Thousand$)
                                                              ----------- ---------- ----------  ----------- ----------  -----------
                                                              (Thousand$) (Thousand$)
<S>                                                           <C>         <C>        <C>         <C>         <C>         <C>
Total 1998 FERC IT Costs                                                                 $  289        $ 245      $ 101         $ 86
                                                                                         ------        -----      -----         ----

Incremental IT Costs                                              $7,145       $6,027    $  160        $ 135      $  56         $ 47



                                                           Capital    Incremental IT
                                                                      (Thousand$)
                                                                      -----------
                                                            $  1,841  O&M                      $11,682
                                                            $  1,803  Depreciation             $11,875
                                                            $  4,570  Tax Savings              $ 7,281
                                                            $ 32,190  Deferred Taxes           $ 6,074
                                                            $214,138  O. C. Plant              $86,777
                                                            $203,586  Acc Def Taxes            $ 6,074
                                                            $ 67,631  O. C. Reserve            $11,875
</TABLE>
<PAGE>

                              PECO Energy Company
                                   Utilities
                     Eleven Months Ended November 30, 1999
                     -------------------------------------

Twelve Month Figure                                             $520,799
                                                                --------

<TABLE>
<CAPTION>
                                                                                  Eleven Months                  Gas Stand Alone
                                                                                  Ended 11/30/99    Allocation   located 11 Month
ACCOUNTNO               NAME                     ADDRESS1             METERNO      SumOfREVENUE     Percentage        Revenue
- ---------               ----                     --------             -------      ------------     ----------        -------
<S>         <C>                        <C>                        <C>             <C>               <C>          <C>
2001010001  Richmond Gen. Station      3901 N. Delaware Ave.      3B26PD-10012    $    30,008.42         0            $     0
2001010001  Richmond Gen. Station      3901 N. Delaware Ave.      525MC-10        $   110,805.90         0            $     0
2001010001  Richmond Gen. Station      3901 N. Delaware Ave.      530MC-1         $   130,268.40         0            $     0
2001010001  Richmond Gen. Station      3901 N. Delaware Ave.      NO METER        $       786.21         0            $     0
2001010003  Pennsbury Power Plant      Bordentown Rd &            3B19PS-10427    $     4,737.45         0            $     0
2001010005  Chester Station            Front & Ward St.           219M-602        $    30,399.27         0            $     0
2001010005  Chester Station            Front & Ward St.           219M-603        $     7,544.39         0            $     0
2001010005  Chester Station            Front & Ward St.           42-346345       $         0.00         0            $     0
2001010005  Chester Station            Front & Ward St.           921MC-124       $     2,972.00         0            $     0
2001010005  Chester Station            Front & Ward St.           NO METER        $       297.25         0            $     0
2001010006  Oreland                    Gate Station               109PLS-743      $     1,613.50         1            $ 1,614
2001010007  Ivyland                    Gate Station               9ML-5           $     2,255.21         1            $ 2,255
2001010008  Pottstown                  Gate Station               6-1410223       $     2,181.31         1            $ 2,181
2001010009  Coatesville                Gate Station               6-1657883       $     1,675.71         1            $ 1,676
2001010010  Kenneth Square             Gate Station               6-1033375       $     1,759.99         1            $ 1,760
2001010011  Parkesburg                 Gate Station               109PLS-652      $     1,443.72         1            $ 1,444
2001010012  Planebrook                 Gate Station               109PLS-14768    $     2,160.76         1            $ 2,161
2001010013  Morrisville                Gate Station               109PLS-15225    $     2,876.56         1            $ 2,877
2001010014  Upper Providence           Gate Station               109PLS-17007    $     1,975.06         1            $ 1,975
2001010015  Buckingham                 Gate Station               9MLD-16697      $     8,858.67         1            $ 8,859
2001010015  Buckingham                 Gate Station               9MLD-16732      $     9,606.67         1            $ 9,607
2001010016  Hershey Mills              Chester & Wineberry La     9-8099512       $     1,609.19         0            $     0
2001010017  Brookhaven                 Gate Station               9-8322292       $     2,736.53         1            $ 2,737
2002010001  Bedminster Gauging Sta     E. Perkiomen Creek         9-4281390       $     9,028.86         0            $     0
2002010002  Perkiomen Pump Station     Rt 29 & Perkiomen Creek    528PC-1         $   665,556.20         0            $     0
2002010002  Perkiomen Pump Station     Rt 29 & Perkiomen Creek    528PC-2         $   634,936.30         0            $     0
2002010003  Bedminster Chiller Site    Lot #6 Apple Butter Rd.    3B22PD-10683    $    65,721.13         0            $     0
2002010004  Bradshaw Pump Station      N/W Cor Point Pleasant Pk  3B29P-10001     $   271,132.80         0            $     0
2002010004  Bradshaw Pump Station      N/W Cor Point Pleasant Pk  3B29P-10002     $   104,102.60         0            $     0
2002010005  Fricks Lock Sampling Sta   Fricks Lock Rd. &          NO METER        $       250.23         0            $     0
2002010006  PECO Sampling Station      Church St.N/O Spring City  NO METER        $       250.23         0            $     0
2002010007  PECO Sampling Station      Keen Rd. E/O Longview Rd.  NO METER        $     9,056.38         0            $     0
2107623097  Oregon Maintenance Shop    2610 S. Delaware Ave.      913M-5          $    85,732.60         0            $     0
2107623097  Oregon Maintenance Shop    2610 S. Delaware Ave.      913M-6          $ 6,968,529.90         0            $     0
2110481269  Christian Street Park Lot  2820 Grays Ferry Ave       9-4216883       $        42.54         0            $     0
2117981500  Christian St Serv Bldg     830 Schuylkill Ave         19STS-5730      $         0.00         0            $     0
2117981500  Christian St Serv Bldg     830 Schuylkill Ave         9-8165387       $        76.33         0            $     0
2117981500  Christian St Serv Bldg     830 Schuylkill Ave         911MD-10015     $   173,438.82         0            $     0
2117981500  Christian St Serv Bldg     830 Schuylkill Ave         911MD-10076     $         0.00         0            $     0
2119031162  PECO                       E.S. Wellacoe St W/O       NO METER        $     1,177.95         0            $     0
2119201486  Shunk Service Center       1316 Shunk St.             NO METER        $     1,302.40         0            $     0
</TABLE>

<PAGE>

                              PECO Energy Company
                                   Utilities
                     Eleven Months Ended November 30, 1999
                     -------------------------------------

Twelve Month Figure                                             $520,799
                                                                --------

<TABLE>
<CAPTION>
                                                                                  Eleven Months                     Gas Stand Alone
                                                                                  Ended 11/30/99      Allocation    located 11 Month
ACCOUNTNO               NAME                     ADDRESS1             METERNO      SumOfREVENUE       Percentage         Revenue
- ---------               ----                     --------             -------      ------------       ----------         -------
<S>         <C>                        <C>                        <C>             <C>                 <C>           <C>
2211980200  PECO Main Office Bldg      2301 Market St.            922MC-10071       $ 772,090.20           0             $      0
2211980200  PECO Main Office Bldg      2301 Market St.            922MC-10072       $ 905,101.20           0             $      0
2211980200  PECO Main Office Bldg      2301 Market St.            922QMC-10032      $       0.00           0             $      0
2211980200  PECO Main Office Bldg      2301 Market St.            922QMC-10033      $       0.00           0             $      0
2211980210  Main Office Bldg Lot       2201 Market St             6-1537229         $       0.00           0             $      0
2211980210  Main Office Bldg Lot       2201 Market St             9-8310833         $     569.13           0             $      0
2211980210  Main Office Bldg Lot       2201 Market St             NO METER          $     880.15           0             $      0
2518150517  Fairmont Dam Monitor       W/S Schuylkill River       9SS-450518        $       0.00           0             $      0
2710010001  PECO                       F & Luzerne St.            508PD-10107       $  39,644.01           0             $      0
2710890655  Byberry Sub Station        1229 Byberry Rd.           NO METER          $     614.52           0             $      0
2710897100  PECO                       701 E. Luzerne St.         NO METER          $     409.64           0             $      0
3503400001  West Chester Serv Bldg     Eachus Mill & Bolmar Rds.  122PD-10099       $  28,359.47       31.03%            $  8,799
3503400001  West Chester Serv Bldg     Eachus Mill & Bolmar Rds.  20-589420         $   1,481.16       31.03%            $    460
3503400001  West Chester Serv Bldg     Eachus Mill & Bolmar Rds.  20-589924         $       0.00       31.03%            $      0
3505400001  Coatesville Microware Tow  100 Reeseville Rd.         9-8146643         $   1,513.83           0             $      0
3505400001  Coatesville Microware Tow  100 Reeseville Rd.         9SD-818296        $   2,626.75           0             $      0
3505400002  Coatesville Pumping Sta    100 Reeseville Rd.         6-1657883        -$     489.18           0             $      0
3508400001  Faces Microware Station    Limestone & Russenville    9-8145142         $   1,710.87           0             $      0
3509400001  Oxford Microware Station   Mt Olivet N/O Chrome Rds   9-2211750         $   2,104.28           0             $      0
3510920005  OHT Headquarters           1040 W. Swedesford Rd.     19STD-10033       $   2,150.65           0             $      0
3510920005  OHT Headquarters           1040 W. Swedesford Rd.     3B19PD-10542      $  56,876.41           0             $      0
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     19STS-5078        $     961.80       14.67%            $    141
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     28-680427         $   2,891.25       14.67%            $    424
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     28-680429         $   2,737.97       14.67%            $    402
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     3B15PD-10016      $   1,110.65       14.67%            $    163
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     46-345837         $  41,521.00       14.67%            $  6,090
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     515PDC-38531      $ 157,141.99       14.67%            $ 23,050
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     9-9297410         $     363.37       14.67%            $     53
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     9SD-55378         $     234.62       14.67%            $     34
3510920009  Berwyn Transportation Ctr  1050 W. Swedesford Rd.     9SD-816515        $     234.17       14.67%            $     34
3510920013  Central Stores Bldg.       1060 W. Swedesford Rd.     511PC-10001       $ 130,821.06       21.75%            $ 28,457
3510920013  Central Stores Bldg.       1060 W. Swedesford Rd.     64-344605         $  31,201.25       21.75%            $  6,787
3511400001  West Grove Serv Bldg       225 Willow St.             119P-10002        $  14,313.11       31.03%            $  4,441
3511400001  West Grove Serv Bldg       225 Willow St.             42-345213         $   5,760.13       31.03%            $  1,787
3512906000  Valley Forge Center        1111 Old Eagle School Rd.  43-347690         $  43,635.51           0             $      0
3512906000  Valley Forge Center        1111 Old Eagle School Rd.  515P-10002        $ 255,053.17           0             $      0
3513400001  Kenneth Sq. Sub Station    W. Cedar & Center St.      26-214652         $     768.86       31.03%            $    239
3513400001  Kenneth Sq. Sub Station    W. Cedar & Center St.      6-1449507         $     382.65       31.03%            $    119
3515447126  Phoenixville Serv Bldg     1101 W. Bridge St.         122P-23           $  20,721.46       31.03%            $  6,429
3515447126  Phoenixville Serv Bldg     1101 W. Bridge St.         28-680556         $     490.51       31.03%            $    152
3515447126  Phoenixville Serv Bldg     1101 W. Bridge St.         28-680633         $     507.94       31.03%            $    158
3515447126  Phoenixville Serv Bldg     1101 W. Bridge St.         3B15PD-10441      $     165.93       31.03%            $     51
3515447126  Phoenixville Serv Bldg     1101 W. Bridge St.         64-344036         $   5,905.67       31.03%            $  1,832
</TABLE>

<PAGE>

                              PECO Energy Company
                                   Utilities
                     Eleven Months Ended November 30, 1999
                     -------------------------------------

Twelve Month Figure                                             $520,799
                                                                --------

<TABLE>
<CAPTION>
                                                                                  Eleven Months                     Gas Stand Alone
                                                                                  Ended 11/30/99    Allocation      located 11 Month
ACCOUNTNO               NAME                     ADDRESS1             METERNO      SumOfREVENUE     Percentage          Revenue
- ---------               ----                     --------             -------      ------------     ----------          -------
<S>         <C>                        <C>                        <C>             <C>               <C>             <C>
3515447126  Phoenixville Serv Bldg     1101 W. Bridge St.         9SD-816891         $     90.10       31.03%          $     28
3515900200  Coatesville Serv Bldg      175 Caln Rd.               129P-1001          $ 43,257.83       31.03%          $ 13,421
3515900200  Coatesville Serv Bldg      175 Caln Rd.               129P-1002          $ 42,672.01       31.03%          $ 13,239
3515900200  Coatesville Serv Bldg      175 Caln Rd.               27-663252          $    442.11       31.03%          $    137
3515900200  Coatesville Serv Bldg      175 Caln Rd.               27-663263          $    404.85       31.03%          $    126
3515900200  Coatesville Serv Bldg      175 Caln Rd.               27-680247          $  1,003.02       31.03%          $    311
3515900200  Coatesville Serv Bldg      175 Caln Rd.               3B15PD-10398       $    161.00       31.03%          $     50
3515900200  Coatesville Serv Bldg      175 Caln Rd.               63-344208          $  9,023.63       31.03%          $  2,800
3515900200  Coatesville Serv Bldg      175 Caln Rd.               9MLD-13584         $  1,912.50       31.03%          $    593
3515900200  Coatesville Serv Bldg      175 Caln Rd.               9SD-814709         $    343.30       31.03%          $    107
3515900210  Coatesville Emer OperFac   175 Caln Rd.               3B26PD-10339       $ 29,879.78       31.03%          $  9,270
3517417880  Cromby Generating Station  Spring City Rd & Twp Line  109PLS-11338       $  3,547.59           0           $      0
4002062761  Gas System Control Ctr     124 King of Prussia Rd.    119P-16            $ 16,480.89           1           $ 16,481
4002062761  Gas System Control Ctr     124 King of Prussia Rd.    20-434951          $    820.20           1           $    820
4002700001  Peco Energy                PA Turnpike & Rt 202       3B15PD-38693       $  2,150.41           0           $      0
4002700001  Peco Energy                PA Turnpike & Rt 202       62-348534          $ 20,485.84           0           $      0
4003123197  Resource Recovery Warehse  411 Yerkes Rd.             27-493673          $  7,125.23           0           $      0
4003123197  Resource Recovery Warehse  411 Yerkes Rd.             27-493822          $  5,057.92           0           $      0
4003123197  Resource Recovery Warehse  411 Yerkes Rd.             3B19PD-10473       $    982.57           0           $      0
4003172068  North Wales Serv Bldg      420 Sumneytown Pk.         11-10037           $  5,817.67       31.03%          $  1,805
4003172068  North Wales Serv Bldg      420 Sumneytown Pk.         119P-14            $ 10,832.06       31.03%          $  3,361
4003172068  North Wales Serv Bldg      420 Sumneytown Pk.         20-419793          $    855.90       31.03%          $    266
4003172068  North Wales Serv Bldg      420 Sumneytown Pk.         20-419829          $  1,299.78       31.03%          $    403
4003172068  North Wales Serv Bldg      420 Sumneytown Pk.         20-626281          $  4,756.26       31.03%          $  1,476
4004071101  PECO                       Colwell Rd & 6th Ave.      106-107638        -$      4.69           0           $      0
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              20-553899          $  2,382.41       31.03%          $    739
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              41-346283          $  6,284.51       31.03%          $  1,950
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              43-345731          $  9,559.61       31.03%          $  2,966
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              911MD-10077        $157,011.05       31.03%          $ 48,713
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              9MLD-13921         $  1,111.27       31.03%          $    345
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              9MLS-15626         $  4,890.38       31.03%          $  1,517
4004081624  Plymouth Serv Bldg         680 Ridge Pk.              NO METER           $  2,502.00       31.03%          $    776
4006130271  Graterford Microwave Sta   300 Ryanford Rd.           9SD-804726         $  3,038.70           0           $      0
4009081426  TeleComm Vaults 1 & 2      215 Everett Ave.           9-4225345          $  5,652.52           0           $      0
4009081426  TeleComm Vaults 1 & 2      215 Everett Ave.           9-4225374          $  7,018.19           0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          122PD-10133        $  3,056.04           0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          122PDPD-54794      $  4,031.50           0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          19ST-3490          $  1,045.51           0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          219MD-10689        $ 16,429.06           0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          41-346505         -$      6.76           0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          9SD-404419                               0           $      0
4012127116  Plymouth Mtg Complex       2001 Gallager Rd.          NO METER           $    616.49           0           $      0
4013027377  Barbadoes Generating Sta   Barbadoes Island           11-6730            $  1,164.78           0           $      0
</TABLE>

<PAGE>

                              PECO Energy Company
                                   Utilities
                     Eleven Months Ended November 30, 1999
                     -------------------------------------

Twelve Month Figure                                             $520,799
                                                                --------

<TABLE>
<CAPTION>
                                                                                  Eleven Months                    Gas Stand Alone
                                                                                  Ended 11/30/99    Allocation     located 11 Month
ACCOUNTNO               NAME                     ADDRESS1             METERNO      SumOfREVENUE     Percentage          Revenue
- ---------               ----                     --------             -------      ------------     ----------          -------
<S>         <C>                        <C>                        <C>             <C>               <C>            <C>
4013027377  Barbadoes Generating Sta   Barbadoes Island           530M-23         $      93.40           0             $      0
4013027377  Barbadoes Generating Sta   Barbadoes Island           530M-4          $  22,617.10           0             $      0
4013069341  Oreland Serv Bldg          Roesch Ave. & Anderson Av  20-361381       $       0.00       31.03%            $      0
4013069341  Oreland Serv Bldg          Roesch Ave. & Anderson Av  20-434758       $       0.00       31.03%            $      0
4013069341  Oreland Serv Bldg          Roesch Ave. & Anderson Av  9MLS-14942      $   2,275.31       31.03%            $    706
4013069341  Oreland Serv Bldg          Roesch Ave. & Anderson Av  9SS-210262      $       0.00       31.03%            $      0
4014076331  Pottstown Serv Bldg        Conrail RR + York St.      20-554133       $       0.00       31.03%            $      0
4014076331  Pottstown Serv Bldg        Conrail RR + York St.      9MLS-12901      $   4,229.70       31.03%            $  1,312
4014076331  Pottstown Serv Bldg        Conrail RR + York St.      9MLS-13013      $   3,737.01       31.03%            $  1,159
4014931250  Vincent Dam Monitor        Schuylkill River & Dam     9-2157780       $       0.00           0             $      0
4014931300  Limerick Atomic Station    341 Longview Rd.           3B19PS-10047    $  55,463.31           0             $      0
4014931300  Limerick Atomic Station    341 Longview Rd.           3B22PC-333      $ 172,557.04           0             $      0
4014931420  Limerick Atomic Station    Limerick Rd.               222M-10001      $   5,492.39           0             $      0
4014931430  Limerick Atomic Station    Evergreen & Sanatoga Rds.  3B32P-10001     $ 254,654.20           0             $      0
4014931440  Limerick Atomic Station    Evergreen & Sanatoga Rds.  3B29PD-10034    $ 122,631.11           0             $      0
4014931445  Limerick Atomic Station    Evergreen & Sanatoga Rds   3B29PQEC10016   $  10,331.82           0             $      0
4014931445  Limerick Atomic Station    Evergreen & Sanatoga Rds   3b29pqxc54792   $  87,643.51           0             $      0
4014931450  Limerick Atomic Station    298 S. Longview Rd.        119P-51         $  14,816.98           0             $      0
4014931460  Limerick Atomic Station    299 Longview Rd.           9-8110412       $     192.02           0             $      0
4014931500  Limerick Atomic Station    Possom Hollow Rd.          3B26P-10005     $  69,153.48           0             $      0
4014931600  Limerick Atomic Station    Sub #10                    3B26P-10003     $  30,875.90           0             $      0
4014931600  Limerick Atomic Station    Sub #10                    3B26P-10004     $  45,603.90           0             $      0
4014931600  Limerick Atomic Station    Sub #10                    3B26P-10006     $  24,911.80           0             $      0
4014931700  Limerick Atomic Station    Evergreen & Sanatoga Rds   3B26P-10001     $  47,142.20           0             $      0
4014931700  Limerick Atomic Station    Evergreen & Sanatoga Rds   3B26P-10002     $   3,981.10           0             $      0
4014931820  Limerick Atomic Station    Evergreen & Sanatoga Rds.  NO METER        $   5,284.20           0             $      0
4017932300  General Meter Shop         950 Pulaski Rd.            126PD-10086     $  44,237.50       31.03%            $ 13,725
4017932300  General Meter Shop         950 Pulaski Rd.            27-493831       $       0.00       31.03%            $      0
4017932300  General Meter Shop         950 Pulaski Rd.            27-729099       $   2,897.36       31.03%            $    899
4501010001  PECO Energy                2950 River RD              NO METER        $   1,568.17           0             $      0
4501010001  PECO Energy                2950 River RD              NO METER-I      $     190.63           0             $      0
4502850001  Amquip Tower Site          777 Winks La.              9SD-801370      $   2,489.99           0             $      0
4503900900  Croydon Gen. Station       955 River Rd.              3B26PC-51       $   2,376.56           0             $      0
4503900900  Croydon Gen. Station       955 River Rd.              919MC-188       $     392.60           0             $      0
4503900900  Croydon Gen. Station       955 River Rd.              9SS-455600      $     703.99           0             $      0
4505140010  Emilie Servive Center      3200 Edgely Rd.            219MD-11341     $  16,519.07       31.03%            $  5,125
4505140010  Emilie Servive Center      3200 Edgely Rd.            222STD-10533    $  13,177.05       31.03%            $  4,088
4516850006  AT & T Tower Site          25 Old Limekiln Rd.        9SD-802962      $   3,035.88           0             $      0
4517850001  Doylestown Serv Bldg       210 W. Ashland St.         19STD-11456     $   6,273.38       31.03%            $  1,946
4517850001  Doylestown Serv Bldg       210 W. Ashland St.         20-361417       $   2,241.38       31.03%            $    695
4517850001  Doylestown Serv Bldg       210 W. Ashland St.         9MLD-14877      $     569.21       31.03%            $    177
4519900100  Warminster Serv Bldg       400 Park Ave.              27-493907       $   1,603.61       31.03%            $    498
4519900100  Warminster Serv Bldg       400 Park Ave.              27-518135       $   1,620.34       31.03%            $    503
</TABLE>

<PAGE>

                              PECO Energy Company
                                   Utilities
                     Eleven Months Ended November 30, 1999
                     -------------------------------------

Twelve Month Figure                                             $520,799
                                                                --------

<TABLE>
<CAPTION>
                                                                                 Eleven Months                 Gas Stand Alone
                                                                                 Ended 11/30/99   Allocation     Allocated 11
ACCOUNT NO          NAME                      ADDRESS 1             METER NO     Sum Of REVENUE   Percentage    Month Revenue
- ----------          ----                      ---------             --------     --------------   ----------    -------------
<S>         <C>                       <C>                        <C>             <C>              <C>           <C>
4519900100  Warminster Serv Bldg      400 Park Ave.              3B15PD-35853    $       649.58     31.03%        $    202
4519900100  Warminster Serv Bldg      400 Park Ave.              511PC-1634      $    69,598.73     31.03%        $ 21,593
4519900100  Warminster Serv Bldg      400 Park Ave.              511PC-1635      $    77,587.95     31.03%        $ 24,072
4519900100  Warminster Serv Bldg      400 Park Ave.              511PD-58120     $     9,209.24     31.03%        $  2,857
4519900100  Warminster Serv Bldg      400 Park Ave.              511PD-58121     $    14,262.18     31.03%        $  4,425
4519900100  Warminster Serv Bldg      400 Park Ave.              63-340222       $    13,589.81     31.03%        $  4,216
4519900100  Warminster Serv Bldg      400 Park Ave.              63-344356       $    15,000.14     31.03%        $  4,654
4519900100  Warminster Serv Bldg      400 Park Ave.              9-6150032       $         0.00     31.03%        $      0
4519900100  Warminster Serv Bldg      400 Park Ave.              9SD-0047322     $        67.58     31.03%        $     21
4519900100  Warminster Serv Bldg      400 Park Ave.              9SD-401089      $       302.06     31.03%        $     94
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     515P-10001      $    35,066.80     31.03%        $ 10,880
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     515P-32         $    73,671.09     31.03%        $ 22,857
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     59-348508       $       315.76     31.03%        $     98
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     63-344944       $    24,633.11     31.03%        $  7,643
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     9MLD-17297      $       135.34     31.03%        $     42
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     NO METER        $       677.58     31.03%        $    210
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     NO METER-2      $       126.49     31.03%        $     39
5006930250  Ardmore Serv Bldg         213 W. County Line Rd.     NO METER-3      $        54.82     31.03%        $     17
5014050048  Bishop Hollow Tower       397 Bishop Hollow Rd.      109PLD-17891    $     3,009.98         0         $      0
5014050048  Bishop Hollow Tower       397 Bishop Hollow Rd.      109PLD-18029    $       354.44         0         $      0
5014050048  Bishop Hollow Tower       397 Bishop Hollow Rd.      9-8249709       $         1.83         0         $      0
5014901640  Morton Service Building   200 Yale Avenue            15-665044       $     1,086.89     31.03%        $    337
5014901640  Morton Service Building   200 Yale Avenue            3B29PQEC-10013  $    50,386.43     31.03%        $ 15,633
5014901640  Morton Service Building   200 Yale Avenue            3B29PQEC-10014  $   117,817.88     31.03%        $ 36,554
5014901640  Morton Service Building   200 Yale Avenue            59-348506       $       450.40     31.03%        $    140
5014901640  Morton Service Building   200 Yale Avenue            64-348391       $         0.00     31.03%        $      0
5014901640  Morton Service Building   200 Yale Avenue            NO METER        $       283.91     31.03%        $     88
5014901640  Morton Service Building   200 Yale Avenue            NO METER-2      $        92.50     31.03%        $     29
5014901640  Morton Service Building   200 Yale Avenue            NO METER-3      $        42.17     31.03%        $     13
5014901640  Morton Service Building   200 Yale Avenue            NO METER-4      $       440.85     31.03%        $    137
5015124657  Baldwin Service Center    1500 Chester Pk.           20-418945       $     2,202.41     31.03%        $    683
5015124657  Baldwin Service Center    1500 Chester Pk.           20-626796       $     2,508.64     31.03%        $    778
5015124657  Baldwin Service Center    1500 Chester Pk.           27-680362       $     2,596.92     31.03%        $    806
5015124657  Baldwin Service Center    1500 Chester Pk.           27-680364       $     3,211.23     31.03%        $    996
5015124657  Baldwin Service Center    1500 Chester Pk.           28-703020       $       911.42     31.03%        $    283
5015124657  Baldwin Service Center    1500 Chester Pk.           28-703023       $     7,588.23     31.03%        $  2,354
5015124657  Baldwin Service Center    1500 Chester Pk.           3B15PD-10361    $    12,943.88     31.03%        $  4,016
5015124657  Baldwin Service Center    1500 Chester Pk.           3B26PD-10467    $    74,473.92     31.03%        $ 23,106
5015124657  Baldwin Service Center    1500 Chester Pk.           NO METER        $     3,070.44     31.03%        $    953
5017191267  PECO ENVIRONMENTAL        3 Jeffrey St.              3B15PD-38054    $     4,499.36         0         $      0
5017390031  Chester Service Bldg      Highland Ave.              122P-10003      $     8,898.23     31.03%        $  2,761
5017390031  Chester Service Bldg      Highland Ave.              62-340464       $     6,545.44     31.03%        $  2,031
5017390031  Chester Service Bldg      Highland Ave.              9-6109038       $         0.00     31.03%        $      0
</TABLE>
<PAGE>

                              PECO Energy Company
                                   Utilities
                     Eleven Months Ended November 30, 1999
                     -------------------------------------

Twelve Month Figure                                             $520,799
                                                                --------

<TABLE>
<CAPTION>
                                                                                 Eleven Months                 Gas Stand Alone
                                                                                 Ended 11/30/99   Allocation     Allocated 11
ACCOUNT NO          NAME                      ADDRESS 1             METER NO     Sum Of REVENUE   Percentage    Month Revenue
- ----------          ----                      ---------             --------     --------------   ----------    -------------
<S>         <C>                       <C>                        <C>             <C>              <C>           <C>
5509801542  Delta Service Bldg        Main & Baptist St.         9-2060745       $         0.00         0         $      0
5509801542  Delta Service Bldg        Main & Baptist St.         9-4110599       $     3,540.59         0         $      0
5509801707  Delta Storage Yard        Main St.                   6-1426358       $     1,072.12         0         $      0
5509803213  Peach Bottom Atomic Sta.  River Rd.                  519PW-1         $    18,866.46         0         $      0
5509803216  Peach Bottom Atomic Sta.  Atom Rd.                   3B29PD-10003    $   134,891.38         0         $      0
5509803219  Peach Bottom Atomic Sta.  Quarry Rd.                 9-4198096       $     1,900.30         0         $      0
5509803221  Peach Bottom Atomic Sta.  Boat House & WellHouse Rd  9-6203533       $         0.00         0         $      0
5509803223  Peach Bottom Atomic Sta   Lay Rd.                    9-8272772       $     2,456.09         0         $      0
5509803226  Peach Bottom Atomic Sta.  Sirens at all locations    NO METER        $     2,377.90         0         $      0
5509803227  Peach Bottom Atomic Sta.  Lay Rd.                    9-6166300       $       583.89         0         $      0
5509803228  Peach Bottom Atomic Sta.  Atom Rd.                   3B19PD-10760    $     3,919.75         0         $      0
5509803229  Peach Bottom Atomic Sta.  Atom Rd.                   3B22PD41277     $    14,159.44         0         $      0
5509803230  Peach Bottom Atomic Sta.  Atom Rd.                   109PLD-24579    $     1,414.88         0         $      0
                                                                                 --------------                   --------


Total-11 months Ended November 1999                                              $14,223,792.22                   $477,399
- -----------------------------------                                              --------------                   --------
Ratioed Upward for 12 months                                                                                      $520,799
- ----------------------------                                                                                      --------
</TABLE>
<PAGE>

                                 Exhibit 1.2k
                                 ------------

Tax Savings on Interest Adjusted Ratebase
- -----------------------------------------

                                                                     (Thousand$)
                                                                     -----------
Ratebase at Dec 31, 1998=                                              $839,135
Stand Alone Ratebase=                                                  $940,001

Debt Capitalization=                                                      45.61%
Preferred Securities Capitalization=                                       5.25%
Debt Interest Rate=                                                        8.67%
Preferred Securities Return Rate=                                          9.08%

Calculated Interest on Stand Alone Ratebase
                                                                       $ 41,652
Estimated Interest Used to Compute
State and Federal Taxes=                                               $ 22,430

Increase in Interest Expense=                                          $ 19,222
Tax Rate=                                                                41.494%
                                                                       --------

Reduction in Income Taxes=                                             $  7,976
<PAGE>

                                 Exhibit 1.2l
                                 ------------

Shareholder Services-No Labor
- -----------------------------
                                                       Allocated   Increase for
                                             Total     Actual Gas  Stand Alone
                                             -----     ----------  -----------

Outside Services                           $1,241,000  $   83,879  $  1,157,121
Annual Report                              $  381,312  $   25,773  $    355,539
Proxy Expense                              $  393,000  $   26,563  $    366,437
Annual Meeting                             $  430,587  $   29,103  $    401,484
Stock Exchange                             $  105,000  $    7,097  $     97,903
Other                                      $  221,102  $   14,944  $    206,158
                                           ----------  ----------  ------------
                                           $2,772,001  $  187,360  $  2,584,641

If assume spin this off to our shareholders, same number
of shareholders

Basis 923 acct Outside Services employed
- ----------------------------------------
electric=                $29,258,641 gas=              $1,977,598   0.067590221
<PAGE>

                                 Exhibit 1.2m
                                 ------------

Increase in Capital Stock Tax and Realty Taxes from Common Plant and IT
- -----------------------------------------------------------------------

New Common Plant and IT Less Reserve=                              $160,466,212
Current Common Plant less Reserve=                                 $ 40,300,000
                                                                   ------------

Increase in Common Plant and IT                                    $120,166,212
Percent Financed by Preferred and
Common Equity=                                                            49.14%

Preferred and Common Equity Portion
of Increased Common Plant and IT=                                  $ 59,049,677

Capital Stock Tax Rate=                                                   1.099%

Increase in Capital Stock Tax=                                     $    648,956
                                                                   ------------

Realty Tax on Common Plant Increase
                   Allocated Current Common Plant-Land=389 account
                     Land=                              $6,050,510
                     Allocated to Gas=                      15.705%
                                                        ----------
                                                        $  950,233
                   Common Stand Alone=                  $4,458,575

                   Increase in Land=                    $3,508,342
                   Realty Tax Rate=                        6.30319%
                                                        ----------
                   Increase in Realty Tax=              $  221,137

Increase in Capital Stock and Realty Taxes=             $  870,093
<PAGE>

                                 Exhibit 1.2n
                                 ------------

Increase in Uncollectible Accounts Expense
- ------------------------------------------

Increases as a stand alone entity to average of other state
gas utilities

<TABLE>
<CAPTION>
                                  Uncoll Expense   Residential Revenue   Comml & Indust Rev     Total
                                   (Thousand$)         (Thousand$)          (Thousand$)      (Thousand$)
                                   -----------         -----------          -----------      -----------
<S>                               <C>              <C>                   <C>                 <C>
PECO Gas Revenue 1998                 $  4,439            $249,438             $126,107         $375,545
Uncollectible as Percent
of Revenue                                1.18%

Rate Increase                         $120,998
Increase in Uncollectibles            $  1,430
</TABLE>
<PAGE>

                                         Exhibit 1.3
                                         -----------
                                   Gas Stand Alone Company
                                   -----------------------
                                     Proposed Employees
                                     ------------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Production                                                0                 13                  12                  25
Gas Supply and Storage                                    1                 19                   1                  21
Distribution                                              2                162                 441                 605
Customer Accts, Service, and Sales                        1                 63                 111                 175
A and G                                                   7                146                  46                 199
Executive                                                 2                  0                   4                   6
                                                         --                ---                 ---                ----

Total                                                    13                403                 615                1031
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Chief Executive Officer                                  1                                                        1
Administrative Assistant/Secy                                                                  1                  1
Chief Operating Officer                                  1                                                        1
Administrative Assistant/Secy                                                                  1                  1
Support                                                                                        2                  2


Total                                                    2                    0                4                  6


VP Finance and Accounting                                1                                                        1
- -------------------------
Administrative Assistant/Secy                                                                  1                  1
Controller                                               1                                                        1
Administrative Assistant/Secy                                                                  1                  1
Manager-Plant Acctg                                                           1                                   1
Administrative Assistant/Secy                                                                  1                  1
Analysts                                                                      3                                   3
Manager-General Acctg                                                         1                                   1
Analysts                                                                      5                                   5
Manager-Reporting                                                             1                                   1
Administrative Assistant/Secy                                                                  1                  1
Analysts                                                                      2                                   2
Manager-Taxes                                                                 1                                   1
Analysts/Compliance/Liasons                                                   4                                   4
Director-Business Services                                                    1                                   1
Administrative Assistant/Secy                                                                  1                  1
Supervisor-Accts Payable                                                      1                                   1
Analysts                                                                      1                                   1
Clerks                                                                                         3                  3
Supervisor-Payroll                                                            1                                   1
Administrative Assistant/Secy                                                                  1                  1
Analysts                                                                      2                                   2
Clerks                                                                                         3                  3
Supervisor-Office Services                                                    1                                   1
Graphics Designers                                                                             2                  2
Office Machine Operators                                                                       2                  2
Clerk                                                                                          1                  1
Treasurer                                                1                                                        1
Administrative Assistant/Secy                                                                  1                  1
Analysts                                                                      6                                   6
Manager-Shareholder Relations                                                 1                                   1
Analysts                                                                      1                                   1
Manager-Budgeting                                                             1                                   1
Administrative Assistant/Secy                                                                  1                  1
Analysts                                                                      4                                   4
Manager-Planning and Performance                                              1                                   1
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Administrative Assistant/Secy                                                                  1
Analysts                                                                      3                                    1
                                                                                                                   3
Director-Rates                                                                1
Administrative Assistant/Secy                                                                  1                   1
Tariff Coordinator                                                                             1                   1
Manager-Tariff and Analysis                                                   1                                    1
Rate Engineers                                                                4                                    1
Regulatory Liason                                                             1                                    4
                                                                                                                   1
Total                                                    3                   49               22
                                                                                                                  74

VP-Information Services                                  1
- -----------------------                                                                                            1
Administrative Assistant/Secy                                                                  1
Operations Area Lead                                                          1                                    1
Manager-Support                                                               1                                    1
Project Leaders                                                               2                                    1
Analysts/Programmers                                                          2                                    2
Manager-Systems                                                               1                                    2
Administrative Assistant/Secy                                                                  1                   1
Project Leaders                                                               2                                    1
Analysts/Programmers                                                         11                                    2
Manager-Information Center                                                    1                                   11
Analysts                                                                      4                                    1
Manager-Operations                                                            1                                    4
Administrative Assistant/Secy                                                                  1                   1
Supervisors                                                                   2                                    1
Analysts/Operators                                                            6                                    2
Manager-Data Administration                                                   1                                    6
Analysts                                                                      3                                    1
Manager-Applications                                                          1                                    3
Project Leaders                                                               3                                    1
Analysts/Programmers                                                         10                                    3
                                                                                                                  10
Total                                                    1                   52                3
                                                                                                                  56

VP-General Counsel/Corporate Secretary                   1                                                         1
- --------------------------------------
Administrative Assistant/Secy                                                                  1                   1
Administrator                                                                 1                                    1
Supervising Attorney-Corporate Operations                                     1                                    1
Attorney                                                                      1                                    1
Supervising Attorney-Regulatory                                               1                                    1
Attorney                                                                      2                                    2
Attornies-Litigation/Claims                                                   2                                    2
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Paralegals                                                                                       2                  2
Administrative Assistant/Secy                                                                    4                  4
Manager-Environmental Affairs                                                  1                                    1
Administrative Assistant/Secy                                                                    1                  1
Staff Personnel                                                                1                                    1
Environmental Coordinators                                                     2                                    2


Manager-Claims                                                                 1                                    1
Administrative Assistant/Secy                                                                    1                  1
Supervisor                                                                     1                                    1
Field Investigators                                                            4                                    4
Support Personnel                                                                                2                  2

Manager-Audit Services                                                         1                                    1
Administrative Assistant/Secy                                                                    1                  1
Auditors                                                                       2                                    2


Total                                                    1                    21                12                 34


VP-Human Resources                                       1                                                          1
- ------------------
Administrative Assistant/Secy                                                                    1                  1
Manager                                                                        1                                    1
Analyst                                                                        1                                    1
Human Resources Generalist                                                     1                                    1
Labor Relations Representative                                                 1                                    1
Benefits Representative                                                        1                                    1
Staffing Representative                                                        1                                    1
Payroll Representative                                                         2                                    2
Data Entry                                                                                       1                  1
Test Administrator                                                                               1                  1
Retirement Management Representative                                                             1                  1
Compensation and Benefits Administrators                                       2                                    2
Manager-Occupational Health and Safety                                         1                                    1
Administrative Assistant/Secy                                                                    1                  1
Counselors                                                                     3                                    3
Nurses                                                                         1                                    1

Total                                                    1                    15                 5                 21


VP-Corporate & Public Affairs                            1                                                          1
- -----------------------------
Administrative Assistant/Secy                                                                    2                  2
Regional Affairs Representatives                                               2                                    2
Manager-Corporate Communications                                               1                                    1
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Representatives                                                                2                                    2
Administrative Assistant/Secy                                                                    1                  1
Manager-Corporate Policy and Programs                                          1                                    1
Representatives                                                                3                                    3
Administrative Assistant/Secy                                                                    1                  1

Total                                                    1                     9                 4                 14

VP-Gas Supply and Transportation                         1                                                          1
- --------------------------------
Operations Area Lead                                                           1                                    1
Administrative Assistant/Secy                                                                    1                  1
Manager-Acquis & Planning                                                      1                                    1
Supply and Transportation Analysts                                             5                                    5
Manager-System Control/Transportation                                          1                                    1
Analysts                                                                       2                                    2
Operators                                                                      6                                    6
Manager-Gas Regulation                                                         1                                    1
Analysts                                                                       2                                    2
Manager-Plant Operations                                                       1                                    1
Supervisor                                                                     1                                    1
Analysts/Specialists/Operators/Mechanics                                      11                12                 23

Total                                                    1                    32                13                 46


VP-Contractor & Supply Management                        1                                                          1
- ---------------------------------
Administrative Assistant/Secy                                                                    1                  1
Operations Area Lead                                                           1                                    1
Director-Contractor & Project Management                                       1                                    1
Administrative Assistant/Secy                                                                    1                  1
Manager-Project Mgmt                                                           1                                    1
Project Managers                                                               3                                    3
Lead Engineers                                                                 2                                    2
Manager-Constr. & Maintenance                                                  1                                    1
Contract Administrators                                                        2                                    2
Sourcing/Quality Specialists                                                   2                                    2
QC Inspectors                                                                  3                                    3
Paving                                                                         3                                    3
Manager-Tech & General Services                                                1                                    1
Contract Administrators                                                        2                                    2
Sourcing Specialists                                                           1                                    1
Manager-Business Programs                                                      1                                    1
Analysts                                                                       3                                    3
Estimator                                                                                        2                  2
Director-Material Management                                                   1                                    1
Administrative Assistant/Secy                                                                    1                  1
Manager-Materials & Logistics                                                  1                                    1
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Supervisors-Warehouse                                                          2                                    2
Materials Providers                                                                              4                  4
Supervisors-Transportation Operations                                          1                                    1
Equipment Operators                                                                              6                  6
Dispatchers                                                                                      3                  3
Supervisors-Material Providers                                                 2                                    2
Material Providers                                                                               4                  4
Manager-Inventory Alternatives                                                 1                                    1
Project Leader                                                                 2                                    2
Commodity Analysts                                                             2                                    2
Material Coordinator                                                           1                                    1
Clerk                                                                                            1                  1
Manager-Commodities & Engin Matls                                              1                                    1
Buyers/Analysts                                                                2                                    2
Material Coordinator                                                           1                                    1
Clerk                                                                                            1                  1
Manager-Work Mgmt/Bus Process                                                  1                                    1
Analysts                                                                       2                                    2
Material Coordinator                                                                             1                  1
Manager-Logistics and Support                                                  1                                    1
Administrative Assistant/Secy                                                                    1                  1
Supervisor-Transportation Operations                                           1                                    1
Equipment Operators                                                                              6                  6
Supervisor-Transportation Planning                                             1                                    1
Dispatchers                                                                                      4                  4
Chauffeurs                                                                                       1                  1
Supervisor-Delchester                                                          1                                    1
Materials Providers                                                                              3                  3
Supervisor-Bucksmont                                                           1                                    1
Materials Providers                                                                              3                  3
Supervisor-Warehouse Operations                                                1                                    1
Materials Providers                                                                              6                  6
Manager-Fleet Managerment                                                      1                                    1
Administrative Assistant/Secy                                                                    1                  1
Supervisors                                                                    4                                    4
Mechanics                                                                                       11                 11
Analysts                                                                       2                                    2
Tool Repair                                                                                      2                  2
Design Specialists                                                                               1                  1
Carpenter                                                                                        1                  1
Support Technician                                                                               1                  1
Manager-Performance Improvement                                                1                                    1
Administrative Assistant/Secy                                                                    1                  1
Methods/Training/Safety Instructors                                            2                                    2
Analysts/Specialists                                                                             6                  6
Manager-Real Estate and Facilities                                             1                                    1
Administrative Assistant/Secy                                                                    1                  1
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Facilities/Leasing Analyst                                                     1                                    1
Representatives                                                                                  2                  2
Manager-Meter Services                                                         1                                    1
Administrative Assistant/Secy                                                                    1                  1
Engineer                                                                       2                                    2
Supervisor-Shop Service                                                        1                                    1
Analyst                                                                        1                                    1
Meter Technicians                                                                                3                  3
Clerk                                                                                            1                  1
Supervisor-Field Services                                                      1                                    1
Engineer                                                                       1                                    1
Meter Technicians                                                                                7                  7
Clerk                                                                                            1                  1

Total                                                    1                    72                89                162


VP-Customer and Marketing Services                       1                                                          1
- ----------------------------------
Administrative Assistant/Secy                                                                    1                  1
Operations Area Lead                                                           1                                    1
Director-Marketing                                                             1                                    1
Administrative Assistant/Secy                                                                    1                  1
Market Managers                                                                2                                    2
Business Developer                                                             2                                    2
Applications Support Engineer                                                  2                                    2
Marketing Research Specialist                                                  2                                    2
Administrative Assistant/Secy                                                                    1                  1
Manager-Account Management                                                     1                                    1
Account Executives                                                             5                                    5
Manager-Service Center                                                         1                                    1
Account Teams                                                                                    8                  8
Manager-Billing Team                                                           1                                    1
Billing Team                                                                   1                                    1
Billing Team                                                                                     3                  3
Manager-Credit and Collections                                                 1                                    1
Account Representatives                                                                          3                  3
Manager-Regulatory Performance                                                 1                                    1
Regulatory Assessors                                                                             2                  2
Clerks                                                                                           2                  2
Manager-Support Services                                                       1                                    1
Support Specialists                                                            2                                    2
Analysts                                                                                         1                  1
Manager-Economic Development                                                   1                                    1
Administrative Assistant/Secy                                                                    1                  1
Regional Directors                                                             3                                    3
Director-Call Center and Billing                                               1                                    1
Administrative Assistant/Secy                                                                    1                  1
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------
                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                       Managerial,
                                                                      Supervisory,
                                                     Executive        Professional        Non-Exempt            Total
                                                     ---------        ------------        ----------            -----
<S>                                                  <C>              <C>                 <C>                   <C>
Senior Analyst                                                                 1                                    1
Manager-Operations                                                             1                                    1
Supervisors                                                                    6                                    6
Operations Representatives                                                                      50                 50
Supervisor-High Bill Field                                                     1                                    1
Representatives                                                                                  4                  4
Manager-Resource Management                                                    1                                    1
Analysts                                                                       3                 1                  4
Manager-Billing                                                                1                                    1
Representatives                                                                2                                    2
Representatives                                                                                  7                  7
Manager-Vendor Operations                                                      1                                    1
Manager-Energy Usage                                                           1                                    1
Administrative Assistant/Secy                                                                    1                  1
Program Lead                                                                   1                                    1
Analysts                                                                       2                                    2
Supervisor-Back Office                                                         1                                    1
Consultants                                                                                      2                  2
Supervisor-Revenue Protection                                                  1                                    1
Protection Technicians                                                                           4                  4
Support                                                                                          3                  3
Manager-Accounts Receivable                                                    1                                    1
Administrative Assistant/Secy                                                                    1                  1
Supervisor-Revenue Control                                                     1                                    1
Analysts                                                                       2                                    2
Analysts                                                                                         3                  3
Supervisor-Payment Processing                                                  1                                    1
Analysts                                                                       1                                    1
Analysts                                                                                         6                  6
Manager-Community Services                                                     1                                    1
Analysts                                                                       1                                    1
Analysts                                                                                         2                  2
Program Manager-Call Center                                                    1                                    1
Analysts                                                                       2                                    2
Analysts                                                                                         3                  3
                                                                                                 0                  0

Total                                                    1                    63               111                175


VP-Operations                                            1                                                          1
- -------------
Administrative Assistant/Secy                                                                    1                  1
Operations Area Lead                                                           1                                    1
Analysts                                                                       2                                    2
Director-Customer Response                                                     1                                    1
Administrative Assistant/Secy                                                                    1                  1
Manager-Planning and Analysis                                                  1                                    1
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------

                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                          Managerial,
                                                         Supervisory,
                                            Executive    Professional       Non-Exempt     Total
                                            ---------    ------------       ----------     -----
<S>                                         <C>          <C>                <C>            <C>
Project Manager                                               1                               1
Work Management                                               1                               1
Analysts                                                      1                               1
Clerks                                                                           2            2
Manager-Field Services                                        1                               1
Shift Managers                                                3                               3
System Dispatchers                                           18                              18
Supervisors                                                   6                               6
Energy Technicians                                                              90           90
Supervisors                                                   2                               2
Foremen                                                                          6            6
Distribution Mechanics                                                          30           30
Director-BucksMont Region                                     1                               1
Administrative Assistant/Secy                                                    1            1
Manager-Contractor&Builder Services                           1                               1
Contractor Liasons                                                               4            4
Design/Construction Consultants                                                  5            5
Supv Engineer-Engineering&Design                              1                               1
Engineers                                                     2                               2
Gas Designers                                                                    5            5
Technical Assistant                                                              1            1
Manager-Work Management                                       1                               1
Scheduler                                                     1                               1
Work Week Managers                                            2                               2
Clerks                                                                           4            4
Manager-Maintenance                                           1                               1
Technical Assistant                                                              1            1
Gas Supervisors                                               4                               4
Gas Foremen                                                                     12           12
Gas Mechanics                                                                   64           64
Director-DelChester Region                                    1                               1
Administrative Assistant/Secy                                                    1            1
Manager-Contractor&Builder Services                           1                               1
Contractor Liasons                                                               4            4
Design/Construction Consultants                                                  4            4
Supv Engineer-Engineering&Design                              1                               1
Engineers                                                     2                               2
Gas Designers                                                                    6            6
Technical Assistant                                                              1            1
Manager-Work Management                                       1                               1
Scheduler                                                     1                               1
Work Week Managers                                            2                               2
Clerks                                                                           4            4
Manager-Maintenance                                           1                               1
Technical Assistant                                                              1            1
Gas Supervisors                                               4                               4
Gas Foremen                                                                     13           13
</TABLE>
<PAGE>

                                  Exhibit 1.3
                                  -----------

                         Stand Alone Gas Organization
                         ----------------------------
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                          Managerial,
                                                         Supervisory,
                                            Executive    Professional       Non-Exempt     Total
                                            ---------    ------------       ----------     -----
<S>                                         <C>          <C>                <C>            <C>
Gas Mechanics                                                                    67          67
Director-Engineering Services                                  1                              1
Administrative Assistant/Secy                                                     1           1
Manager-Mapping and Document Services                          1                              1
Supervisor-CAD Support                                         1                              1
Analysts                                                       1                              1
Supervisor-Gas Map                                             1                              1
Drafter/Clerks                                                                    4           4
Supervisor-Document Control                                    1                              1
Analysts                                                       1                              1
Clerks                                                                            3           3
Manager-System Planning&Customer Engineering                   1                              1
Senior Engineer                                                2                              2
Engineer                                                       2                              2
Clerk                                                                             1           1
Manager-Corrosion Control                                      1                              1
Administrative Assistant/Secy                                                     1           1
Analyst                                                        1                              1
Technical Analysts                                             2                              2
Corrosion Control Mechanics                                                      12          12
Manager-Gas Engineering                                        1                              1
Engineer                                                       7                              7
Designer                                                                          1           1
Clerk                                                                             1           1

Total                                           1             90                352         443


Total Employee Count                           13            403                615        1031
</TABLE>
<PAGE>

                                  Exhibit 1.4
                                  -----------

                     PECO Energy Company-1998 Payroll Data
                     -------------------------------------

<TABLE>
<CAPTION>
<S>                       <C>            <C>            <C>           <C>
Payroll                   $448,915,051
ff198
avg employees                     7029
1998 qr


Avg98payroll              $     63,868
Other Accounts            $ 25,572,605


                                                                      Employee Alloc
                                                                         Based on
                              Direct       Clearing        Total       Avg Payroll
                              ------       --------        -----       -----------
1998 Electric
- -------------
Production                $175,699,570   $ 7,641,604    $183,341,174       2870.6
Transmission              $ 10,279,102   $   447,063    $ 10,726,165        167.9
Distribution              $ 46,862,634   $ 2,038,171    $ 48,900,805        765.6
Customer Accounts         $ 24,119,106   $ 1,048,999    $ 25,168,105        394.1
Cust Serv/Info            $  6,745,843   $   293,393    $  7,039,236        110.2
Sales                     $  2,971,361   $   129,232    $  3,100,593         48.5
A and G                   $ 59,832,735   $ 2,602,272    $ 62,435,007        977.6
                          ------------   -----------    ------------       ------

Total                     $326,510,351   $14,200,734    $340,711,085       5334.6

Plant Construction        $ 45,909,840   $ 1,676,644    $ 47,586,484        745.1
Plant Removal             $     28,831                  $     28,831          0.5

Other Accounts            $ 23,449,890                  $ 23,449,890        367.2

Total Electric            $395,898,912   $15,877,378    $411,776,290       6447.3
                          ------------   -----------    ------------

1998 Gas
- --------
Prod-Manuf Gas            $    176,855   $     7,006    $    183,861          2.9
Prod-Nat Gas                             $         0    $          0          0.0
Other Gas Supply          $  2,400,854   $    95,114    $  2,495,968         39.1
Storage, LNG, Process     $    979,091   $    38,788    $  1,017,879         15.9
Distribution              $ 10,085,768   $   399,564    $ 10,485,332        164.2
Customer Accounts         $  4,369,815   $   173,117    $  4,542,932         71.1
Cust Serv/Info            $    910,405   $    36,067    $    946,472         14.8
Sales                     $    404,043   $    16,007    $    420,050          6.6
A and G                   $  3,553,234   $   140,767    $  3,694,001         57.8
                          ------------   -----------    ------------       ------

Total                     $ 22,880,065   $   906,430    $ 23,786,495        372.4

Plant Construction        $ 10,817,086   $   395,044    $ 11,212,130        175.6
Plant Removal             $     17,421                  $     17,421          0.3

Other Accounts            $  2,122,715                  $  2,122,715         33.2

Total Gas                 $ 35,837,287   $ 1,301,474    $ 37,138,761        581.5
                          ------------   -----------    ------------

                          $431,736,199   $17,178,852    $448,915,051       7028.8
</TABLE>
<PAGE>

                                  Exhibit 1.5
                                  -----------

                              Gas Comparison Data
                              Calendar Year 1998
                                Employee Counts
                                ---------------

<TABLE>
<CAPTION>
                                                                                                               Measure:
                                                                                                             Distribution
                                                                               Measure:      Distribution       Mains
                                                  Employee                    Customers         Mains        (M.Ft.) per
Pennsylvania Utilities                             Count     Customers       per Employee      (M.Ft.)         Employee
- ----------------------                             -----     ---------       ------------      -------         --------
<S>                                               <C>        <C>             <C>             <C>             <C>
People's                                             935      349,487              374          29,591           31.65
Columbia Gas of PA                                   876      383,921              438          36,398           41.55
PG Energy                                            554      148,873              269          12,351           22.29
Equitable Gas                                        770      203,952              265          18,532           24.07
                                                    ----      -------            -----          ------           -----

Simple Average                                                                     336                           29.89

Current PECO                                         582      415,437              714          31,030           53.32
PECO Employee Count if at Average of the Measure                                 1,235                           1,038

PECO Measure at
Stand Alone Values                                  1031      415,437              403          31,030           30.10
</TABLE>
<PAGE>

                                  Exhibit 1.6
                                  -----------
                         Income Statement and Ratebase
          Adjustments to Electric Operations Based on Gas Stand Alone
          -----------------------------------------------------------
                                  (Thousand$)

<TABLE>
<CAPTION>
                                                                                            Effect on
Income Statement                                                            Taxes and        Revenue
- ----------------
Adjustments                                    Rate Base      Revenues       Expenses      Requirements
- -----------                                    ---------      --------       --------      ------------
<S>                                            <C>            <C>           <C>            <C>
Increase in External Audit Fees                                               $   75         $     79
Increase in Board of Director's Fees                                          $   42         $     44
Increase in Postage Expenses                                                  $  528         $    553
Increase in Common Plant Book Deprec. Expense                                 $  935         $  1,672
Reduction in Taxes from Inc. in Common Tax Depreciation                        ($556)           ($993)
Increase in Deferred Taxes from Common Depreciation Exp.                      $    7         $     13
Increase in Shareholder Services Expenses                                     $  187         $    196
Increase in Capital Stock Taxes                                               $  218         $    228

Ratebase
- --------
Adjustments
- -----------

Increase in Common Plant                       $59,547                                       $  8,070
Increase in Reserve from Common Plant          $19,247                                        ($2,608)
Increase in Acc. Def Taxes from
   Common Plant                                $ 2,246                                          ($304)
                                                                                             --------

Total Increased Revenue Requirements
for Electric Operations Due to Gas Stand Alone                                               $  6,950
</TABLE>
<PAGE>

                              Exhibit 1.6, page 2
                              -------------------
                              Effect on Electric Operations
                              -----------------------------
                              (From Dec 98 PAPUC Quarterly Report)
                              ------------------------------------

Ratebase Effect from Common Plant
- ---------------------------------
Increase in Common Plant                                  $59,547,000
Increase in Reserve                                       $19,247,000
                                                          -----------

Increase in Net Plant                                     $40,300,000

Increase in Accumulated Def Taxes                         $ 2,246,000
                                                          -----------

Net Increase in Ratebase                                  $38,054,000

Effect on Depreciation from Common Plant
- ----------------------------------------

Increase in Book Depreciation                             $   935,000
Reduction in Income Taxes                                 $   555,605
Increase in Deferred Income Taxes                         $     7,000
                                                          -----------

Net Effect on Income                                      $   386,395

Total Additional Revenue Requirements
- -------------------------------------

Cost of Capital-December 1998 Quarterly Report
- ----------------------------------------------

                                                Weighted    After Tax
                   Capitalization    Return       Return       Return
                   --------------    ------       ------       ------
Debt                     45.61%       8.67%        3.95%        2.31%
Pref Secur                5.25%       9.08%        0.48%        0.28%
Pref Stock                3.21%       7.24%        0.23%        0.23%
Common                   45.93%      10.36%        4.76%        4.76%
                        -------                    -----        -----

                        100.00%                    9.42%        7.58%
                                                  revreq
                                                  factor     13.5522%
Tax Rate                             41.494%
Gross Receipts                        4.400%


Increase in External Audit Fees
- -------------------------------

Allocated to Gas from Gas Expense Assumptions Data=                  $ 75,443

Shareholder Services, No Labor
- ------------------------------

Allocated to Gas from Gas Expense Assumptions Data=                  $187,360

Director's Fees
- ---------------

Allocated to Gas from Gas Expense Assumptions Data=                  $ 42,177

                                       2
<PAGE>

                              Exhibit 1.6, page 3
                              -------------------

Postage Expenses on Customer Bills
- ----------------------------------

Allocated to Gas from Gas Expense Assumptions Data=                 $   528,476

Increase in Capital Stock Tax from Additional Common Plant
- ----------------------------------------------------------

Additional Common Plant less Reserve Previously
Allocated to Gas=                                                   $40,300,000

Percent Financed by Preferred and
Common Equity=                                                            49.14%
                                                                          ------

Preferred and Common Equity
Portion of Additional Common Plant=                                 $19,803,420

Capital Stock Tax Rate=                                                   1.099%
                                                                          ------

Increase in Capital Stock Taxes from
Additional Common Plant=                                            $   217,640

                                       3

<PAGE>

                                                                     Exhibit K-1


                                Analysis of How
                        The Interconnection Requirement
                                    Of PUHCA
                        Is Satisfied by OATTs and OASIS

                                  March, 2000

     This document describes the legal, regulatory and operating aspects of the
current interstate electric transmission system in the United States in support
of the assertion by Applicant in the accompanying Application-Declaration that
the electric utility companies of Exelon Corporation ("Exelon") will be
"interconnected" for purposes of satisfying one of the four elements of the
"single integrated public-utility system" requirement of the Public Utility
Holding Company Act of 1935 (the "Act").  The Application-Declaration presents
the facts which demonstrate that Exelon will meet each of the four requirements
for integration, in that the Exelon public-utility system will be:

     .  physically interconnected or capable of physical interconnection;

     .  economically operated under normal conditions as a single interconnected
        and coordinated system;

     .  confined in its operations to a single area or region, in one or more
        States; and

     .  not so large as to impair (considering the state of the art and the area
        or region affected) the advantages of localized management, efficient
        operation, and the effectiveness of regulation.

     This document addresses only the interconnection requirement and provides
additional facts to support the legal conclusions regarding the integration test
presented in the Application-Declaration.

     This document is divided into two parts:

     .  Part 1:   The Development of Interstate Transmission -- Legal,
        Regulatory and Operating Changes Resulting in Non-discriminatory, Open
        Access to the System

     .  Part 2:  A Practical Guide to Moving Power -- How Open Access
        Transmission Tariffs (OATTs) and Open Access Same-time Information
        Systems (OASIS) Work
<PAGE>

                                    Part 1:
                                    -------

 The Development of Interstate Transmission -- Legal, Regulatory and Operating
 -----------------------------------------------------------------------------
      Changes Resulting in Non-discriminatory, Open Access to the System
      ------------------------------------------------------------------

       This part will briefly trace the development of the interstate electric
transmission network.  Legislative, regulatory and technological developments,
and the increasingly competitive structure of the electric utility industry,
have fundamentally changed the way in which utilities which are not
geographically adjacent may be "interconnected" so as to be able to engage in
coordinated operations.

       Traditional Integration and Interconnection.
       --------------------------------------------

       Utilities have long exchanged electricity for economic and reliability
purposes.  Energy generated by one utility can be sold to another utility which
is not geographically adjacent because the energy can be transported across the
nation's transmission system - an interconnected network of high voltage
electric lines that run for hundreds and sometimes thousands of miles.  The
principal reason it now can be economic to sell energy generated in one area to
another is that the cost of generation, plus the cost of transmission, is less
than the cost of generation in the receiving area.   In the past, one of the
principal reasons for allowing two utilities to merge or be controlled by a
single holding company under the Act was the economies and efficiencies that
would result primarily from combining their generation.  These efficiencies
could be obtained if lower cost generation of utility "A" could be used to serve
utility "B's" customers when available.

       The use of the lowest cost generation to meet demand was traditionally
accomplished through "central economic dispatch."/1/  Generation was brought on
line in economic order -- starting with the least expensive and continuing
through the available resources adding more expensive generation as demand
increased.  To accomplish this, the commonly controlled utilities had to be able
to transmit utility A's more economic generation to utility B's service area
rather than run utility B's more expensive generation. Because intervening
utilities were generally not required to "wheel" -- that is, transmit -- third
party energy over their transmission systems, however, central dispatch was
usually possible only for utilities physically interconnected through owned
                                                                      -----
transmission facilities.  In limited circumstances, central economic dispatch
was possible if utility A and B had a contractual right to use a third-party's
transmission line.  Historically under the Act, therefore, for two separate
utility companies to be "integrated" they had to be, for legal and practical
reasons described briefly below, adjacent or at least in very close proximity.

     The Energy Policy Act of 1992 ("EPACT") changed the legal framework for the
interstate transmission of electricity./2/ EPACT changed the conditions under
which utilities could

________________________
1   See American Electric Power Company, Inc., Holding Co. Act Release No. 20633
    --- -------------------------------------
(July 21, 1978) ("AEP").
                  ---

2   Pub. L. No. 102-486, 106 Stat. 2776 (1992).

                                       2
<PAGE>

request transmission service over the systems of others, and thus expanded the
circumstances in which two remote utilities could economically move power from
one to the other. FERC initially implemented EPACT on a case-by-case basis,
ordering individual utilities to enter into specific transactions. Later it used
its authority under EPACT, and its authority to remedy discriminatory conduct
under the Federal Power Act (FPA), to require all utilities to file open access
tariffs, and to encourage those not under its jurisdiction to do so as well.
This ruling came in Order No. 888/3/ which opened the transmission grid to all
market participants, including transmission owners, on comparable terms. This
development greatly facilitated the growth in transmission transactions. Order
No. 888's key provision was the requirement that utilities file standard
transmission tariffs (called "OATTs" -- open access transmission tariff) under
which a transmission provider must offer service. OATTs provided utilities and
power marketers for the first time with a generally available right to use the
transmission systems of others to move power at tariffed rates.

     In a companion ruling, Order No. 889,/4/ FERC also mandated that
transmission owners establish a comprehensive information system regarding the
availability and price of their transmission service on Internet sites called
Open Access Same-Time Information System ("OASIS"). OASIS sites provide the
information necessary for utilities to use the interstate transmission system to
coordinate their operations.

     Through the use of the OATT and OASIS system, it has become routine for
utilities that are not adjacent to one another to move electricity between each
other as if they were adjacent.  By reserving capacity through the OASIS sites,
utilities may operate their various generating assets on an economic basis and
otherwise act as an integrated public utility company.  As a means to achieve
the interconnections necessary to establish integration, these legal and
practical circumstances have only become available in recent years -- in fact
                                                                      -------
only since about 1997./5/
- ---------------------

     Development of the Physical Infrastructure
     ------------------------------------------

     The early administration of the Act transformed the electric utility
industry from a small number of very large companies, many of them including
properties scattered across the nation and operated with little regard for
efficient or coordinated operation, into a larger number of smaller companies
operating in clearly defined, compact and contiguous service areas.  The
principal drivers of efficiency in this period were the economies of scale
derived from larger, centrally located generating units and transmission systems
designed and constructed by an individual utility to serve the needs of its own
service area.  Utilities operated in relative electric isolation.

______________________
/3/   Promoting Wholesale Competition Through Open Access Non-Discriminatory
Transmission Service by Public Utilities; Recovery of Stranded Costs by Public
Utilities and Transmitting Utilities, FERC Stats. and Regs., Regulations
Preambles, (P) 31,036 (1996) ("Order No. 888"), order on rehearing, FERC Stats.
& Regs., Regulations Preambles, (P) 31,048 (1997) ("Order No. 888-A"), order on
rehearing, 81 FERC (P) 61,248 (1997) ("Order No. 888-B"), order on rehearing, 82
FERC (P) 61,046 (1998) ("Order No. 888-C").

/4/   Open Access Same-Time Information System (formerly Real-Time Information
      ------------------------------------------------------------------------
Network) and Standards of Conduct, Order No. 889, [1991-1996 Transfer Binder]
- ---------------------------------
FERC Stats.  & Regs., Regs.  Preambles (P) 31,035, at 31,585 (1996), order on
                                                                     --------
reh'g, Order No. 889-A, III FERC Stats.  & Regs., Regs.  Preambles (P) 61,253
- ------
(1997).

/5/   The requirement to file an OATT was effective in 1996.  OASIS went into
operation in 1997.

                                       3
<PAGE>

     The decades following the enactment of the Act, however, saw the
significant expansion of the transmission sector of the electric utility
industry.  The total miles of high voltage (230 kV and above) transmission lines
tripled in the 1950s, and tripled again in the l960s./6/  While utilities had
originally constructed transmission facilities to transmit power from their own
plants to their customers, in the 1940s, 1950's and 1960s, utilities
increasingly developed interconnections with their neighboring utilities to
obtain and provide mutual assistance in emergency situations, to improve
reliability, and to reduce the costs of power supply through long-term capacity
and economy transactions with their neighbors./7/ Technological advances in
transmission have also occurred, making it possible to transmit electric power
economically over long distances at higher voltages.  In today's world,
"improved transmission and monitoring technologies have increased the feasible
geographic bounds for supply choice; a geographic radius of 1,000 miles or more
is currently considered reasonable for choosing among supply options."/8/

     Advances in telecommunications and computer technology have improved the
ability to economically dispatch power systems and control power flow across
such systems.  Improvements in telecommunication technology have allowed for the
quick and reliable transfer of data, providing system operators an almost real
time ability to monitor and control the power system and dispatch, from a single
location, generation that can be located throughout a large geographic area./9/
The OASIS of each utility is a site on the Internet -- a communications
technology which has dramatically changed many aspects of business operations --
including facilitating virtually instantaneous wholesale electric power
transactions.

     The interconnection of the transmission grid has proven so beneficial that
every utility in the continental United States is interconnected with one of
three Interconnections: the Eastern Interconnection, which encompasses utilities
in the eastern United States and Canada from the Atlantic Ocean to the High
Plains; the Western Interconnection, which encompasses utilities from the High
Plains/Rocky Mountain region to the Pacific Ocean; and ERCOT, which encompasses
most of the State of Texas.  FERC has described the present state of the
transmission sector of the electric utility industry:

__________________________
/6/  There were 2,974 miles of high voltage transmission in 1940, 8,174 miles in
1950, 22,379 miles in 1960, and 65,370 miles in 1970.  Peter Fox-Penner,
Electric Utility Restructuring, A Guide to the Competitive Era (1997) at 130.
- --------------------------------------------------------------
In 1998, there were 200,000 miles of high voltage transmission.  Electric Power
Annual 1998 Volume I, Energy Information Administration, Department of Energy
(1999) available at
http://www.eia.doe.gov/cneaf/electricity/epav1/epav1.sum.html

/7/  See William J.  Baumol & J. Gregory Sidak, Transmission Pricing and
     --- -------------------------------------
Stranded Costs in the Electric Power Industry (1995) at 13.

/8/  Electricity: Innovation and Competition, Hearing Before the Subcomm.  of
     ------------------------------------------------------------------------
Energy and Power of the House Comm. on Commerce, 105th Cong. 38 (1997)
- ------------------------------------------------
(statement of Robert B. Schainker, Manager, Substations, Transmissions and
Substation Business Area Power Delivery Group, Electric Power Research
Institute).  Philadelphia is about 760 miles from Chicago. Technological
advances in the "size" of transmission lines (345 kV to 765 kV lines) have
allowed for the transfer of large amounts of power over great distances.
Technological advances have also occurred in the "type" of transmission lines.
High-voltage direct current ("HVDC") technology enables the transmission of bulk
power over longer distances with less energy loss than traditional alternating
current ("AC") transmission lines. New flexible AC technology can increase the
capacity of existing transmission lines by approximately 20 to 40 percent. Such
technology "help[s] electric utilities operate their bulk power networks closer
to their inherent thermal limits, while maintaining and/or improving network
security and reliability."  Id.
                            ---

/9/  Leslie Lamarre, The Digital Revolution, EPRI Journal, (Jan./Feb. 1998).
                     ----------------------

                                       4
<PAGE>

     The transmission facilities of any one utility in a region are part of a
     larger, integrated transmission system.  From an electric engineering
     perspective, each of the three interconnections in the United States (the
     Eastern, the Western and ERCOT) operates as a single "machine."/10/


     Development of a Competitive Generation Sector
     ----------------------------------------------

     Although the United States has been "electrically interconnected" through
the interstate grid for decades, only in the past few years has the grid been
operated in a way that would constitute "interconnection" as defined in the Act.
Two developments were necessary to achieve such "interconnected" status -- legal
and practical changes that allow practical access for all to the interstate
transmission grid and the resulting development of an independent, competitive
generation market.

     Today's generation sector of the electric utility industry is very
different than it was in 1935.  In the late 1970s, concern over the nation's
energy future, in conjunction with other factors, led to the first significant
legislative development at the federal level affecting the electric utility
industry since the adoption of the Act and the Federal Power Act: the enactment
of the Public Utility Regulatory Policies Act of 1978 ("PURPA"). PURPA
encouraged the development of electric generating facilities separate from the
traditional integrated utility.  Various types of entities -- independent power
producers ("IPPs") and qualifying facilities ("QFs")/11/, sometimes generically
grouped as non-utility generators ("NUGs") appeared on the scene. These
generators operate without a franchised service territory or an established
customer base in many cases and seek to sell some or all of the output of their
generating facilities in the wholesale market./12/  The effect of these
developments was to foster the start of the separation of generation from the
transmission and distribution functions of utility operations.  Further, in some
parts of the country, traditional integrated electric operations increasingly
began to include power purchases from third parties in their supply options,
rather than only for short-term emergency or opportunity purposes.

     The development of non-traditional generators was inhibited by their lack
of access to essential transmission facilities to reach a broad customer base,
as well as ownership restrictions effectively created by the integration
requirements of the Act.  Recognizing these obstacles and desiring to promote
greater development of wholesale power markets generally, Congress passed EPACT
which amended the Federal Power Act to permit any entity selling power at
wholesale to

_____________________
     /10/  Regional Transmission Organization, Notice of Proposed Rulemaking, IV
FERC Stats. & Regs. (P)32,541 (1999) ("RTO NOPR") at 33,697. FERC has noted that
"the entire Eastern interconnection is, as the name indicates, interconnected."
North American Electric Reliability Council, 87 FERC (P) (1999). This quotation
- -------------------------------------------
uses the term "integrated" in the sense of interconnected and not with the
technical meaning of "integrated" under the Act.


     /11/  A "QF" is a qualifying facility that meets the energy efficiency
standards of PURPA. QF's are not public utility companies under the Act.

     /12/  The earliest QFs and IPPs in the 1980's typically sold all their
output to the incumbent vertically integrated utility that served the area where
their generation was located. This arrangement was typical because the QF or IPP
did not have a means of obtaining transmission service to sell to more distant
customers.

                                       5
<PAGE>

request FERC to order a transmission-owning utility to provide transmission
services./13/ With the passage of EPACT, for the first time the owner of
electric generation had a means to require an unaffiliated owner of
                                   -------
transmission to transmit power to the generation owner's wholesale customers.
Subsequent FERC action has led to the rapid development of wholesale markets and
the general availability of transmission services for all generators, IPPs and
traditional integrated utilities.

     Development of True "Open Access"
     -----------------------------------

     Following enactment of EPACT, FERC soon concluded that transmission access
was not yet sufficiently available to allow a fully competitive market in
electric generation to develop.  To address this concern, within three years
after the enactment of EPACT, FERC commenced its so-called "Mega-NOPR"
proceeding./14/ This notice of proposed rulemaking culminated approximately a
year later with FERC's issuance of Order No. 888.

     Order No. 888 requires all FERC jurisdictional transmission owners to:

     .  offer comparable open-access transmission service

     .  for wholesale and unbundled retail open access transactions

     .  under a tariff of general applicability on file at FERC; and

     .  take transmission service for their own wholesale sales under their
        open-access tariff.

     Each element listed above is important.  All transmission owners under FERC
jurisdiction are required to offer open-access service.  The service must be
"comparable." FERC defines comparability as: "an open access tariff that is not
unduly discriminatory or anticompetitive should offer third parties access on
the same or comparable basis, and under the same or comparable terms and
conditions, as the transmission provider's uses of its system."/15/ To ensure
that a transmission owner makes its facilities available on a fair basis to all,
it must offer service to others on the same terms as are available to itself.
All wholesale transactions are eligible for the open access service, which must
be provided at a FERC approved tariff rate.

_____________________
     /13/  PURPA also included a provision that allowed the Commission to order
wheeling for power generated by a third party; but only under certain narrowly-
defined circumstances. Furthermore, FERC quickly interpreted this already
limited authority very conservatively. See Southeastern Power Administration v.
                                       --- ------------------------------------
Kentucky Utilities Co., 25 FERC (P) 61,204 (1983).  EPACT amended sections 211
- ----------------------
and 212 of the Federal Power Act to expand the Commission's authority to order
wheeling upon application.  16 U.S.C. (S)(S) 824j, 824k.  EPACT also created a
new exemption under Section 32 of the 1935 Act for exempt wholesale generators
("EWGs").  The EWG exemption ensures that the Act's integration requirements
will not thwart the development of IPPs participating in the wholesale market,
an implicit acknowledgment that the economic operation of a utility system
depends on contractual relationships as well as facilities ownership.

     /14/  Promoting Wholesale Competition Through Open Access Non-
           --------------------------------------------------------
discriminatory Transmission Services by Public Utilities; Recovery of Stranded
- -------------------------------------------------------------------------------
Costs by Public Utilities and Transmitting Utilities, 70 FERC (P) 61,357 (1995).
                ------------------------------------

     /15/  67 FERC at 61,490.

                                       6
<PAGE>

     Order No. 888 was intended to facilitate third-party utilization of the
transmission grid as the vehicle for developing a competitive wholesale bulk
power market.  Prior to EPACT and Order No. 888, the only way to obtain
transmission service was through negotiation with the transmission owner -- who
was under no obligation to provide service./16/  While many agreements for
transmission service were entered into, transmission owners often did not have
an incentive to provide attractive pricing or reasonable terms and conditions.
There was no open market for transmission services.
             ----

     Under Order No. 888, a utility must wheel power for third parties upon
their request, on either a firm or a non-firm basis.  The transmission owner
must offer reasonable, non-discriminatory, FERC-approved pricing.  If the
transmission owner has capacity, it must be made available on a generally first
come first served basis./17/  If the transmitting utility does not have
sufficient transmission capacity to transmit on a firm basis, it must either
offer to expand its transmission system to accommodate the request, or, if
appropriate, redispatch its own generation to relieve constraints thereby making
transmission capacity available./18/ In the interim, the transmission user may
seek non-firm transmission on the same basis as other users. Thus, Order No. 888
provides a mechanism for expanding the capacity of the transmission system to
accommodate users' needs./19/

     Prior to Order No. 888, electric utilities typically had to construct
direct interconnections to facilitate capacity and energy transfers. Although
the country was electrically interconnected for many years, it was not until
EPACT and Order No. 888 that an electric generator (an IPP or traditional
utility) had a legal right to access that system of interconnected transmission
               -----------
for its own use. Order No. 888 does not distinguish the type of generator.  Open
access is available to, and is in fact used by, independent generators and
traditional utility generators.  Importantly, as a matter of right under Order
No. 888, two utilities can now arrange for interconnection.  By using the OATTs,
they can acquire either a firm or a non-firm path that allows power transfers
between the two systems.  As will be shown below, based on reasonable evaluation
of available transmission capacity, a combined operation like Exelon can safely
rely on a mixed portfolio of firm and non-firm transmission reservations to
satisfy its needs to transfer power within its system to achieve efficient
coordinated operations.  While it might have been difficult to show that a
single "contract path" of the old, pre-Order No. 888 industry would have been
sufficient to establish that ComEd and PECO could be part of an "integrated
public utility system" under the Act, with the transmission capacity available
under Order No. 888 a finding of interconnection and, therefore, integration is
easily established under the traditional standards of the Act./20/

____________________
     /16/   Under PURPA, FERC had authority to order a utility to provide
transmission service but only in very limited services. See Note 13 above.

     /17/   See below for a discussion of the process for "reserving" capacity.

     /18/   Whether the customer or the transmission owner must pay for upgrades
is determined in accordance with FERC rules.

     /19/   One of the principal reasons for FERC's encouragement of regional
transmission organizations ("RTO's") is to make the process of system
development more efficient. See below under "Further Developments from RTOs."

     /20/   The legal analysis under the Act is included in the Application-
Declaration. By the "traditional standards of the Act," Applicant means not the
traditional "interconnection" analysis, but the "coordination" analysis

                                       7
<PAGE>

     OASIS.
     -----

     At the time FERC began its mega-NOPR proceeding leading to issuance of
Order No. 888, it recognized that transmission users would need substantially
improved, easily accessible and publicly available information about what type
of transmission capacity might be available.  Consequently, FERC began a
companion rulemaking proceeding that led to issuance of Order No. 889. In
summary, Order No. 889 requires transmission owners to identify the total
transmission capacity on their system as well as the transmission capacity
available for third party users, and to post that information on an Internet
site.

     Specifically, FERC Order No. 889 requires each transmission owning public
utility to develop and maintain an Open Access Same-Time Information System to
give transmission users access to information regarding available transmission
capacity./21/  The OASIS, which is accessible to all eligible transmission users
through the Internet, provides the day to day information necessary for a
transmission user to plan for the movement of its generation from one area to
the other.  OASIS makes possible the "nuts-and-bolts" daily operation of the
open access system.

____________________
(i.e., that the system is sufficiently interconnected so that under normal
conditions it can function as a coordinated public utility system.)

     /21/  See Note 4 above.

                                       8
<PAGE>

                                    Part 2:

                     A Practical Guide to Moving Power --
                 How Open Access Transmission Tariffs (OATTs)
                                      and
            Open Access Same-time Information Systems (OASIS) Work
            ------------------------------------------------------

     This part will show how the statutory and regulatory changes described in
Part 1 are put to use by electric utilities today.  The following is a step by
step guide to how, from an actual operating perspective, OATTs and OASIS can be
used to establish electrical interconnection and therefore allow Exelon to
engage in coordinated operations.

     Use of OATTs and OASIS.
     -----------------------

     The process of transferring energy between unaffiliated utilities occurs
continually and involves three steps; the first two steps of which can occur in
either order depending on the circumstances:

     .  Buyer and Seller Agree to Energy Transaction
     .  Buyer or Seller Reserves Transmission
     .  Schedule Transaction -- actual movement of power

     Exelon will follow this same pattern.  The first step described above for
typical wholesale transactions, however, will not be a part of the Exelon model.
Unlike most other registered holding company systems which are made up of two or
more separate utility entities owning generation, all of Exelon's generation
assets will be centralized in a single Genco./22/  This entity will be able to
determine the most efficient and economical use of all the generation subject to
Exelon's control and use that generation to most efficiently meet the
traditional bundled service or provider of last resort obligations of ComEd and
PECO.  Genco will effectuate its decisions -- for example to use a generating
source in the Midwest to meet a load requirement in the East -- through the
second and third steps listed above.  These steps use the OATT/OASIS system
summarized in the following discussion.

     On-Going Transmission Reservation -- Long-term; Short-term; Firm and Non-
     ------------------------------------------------------------------------
     Firm.
     -----

     In order to be assured of the interconnection capacity sufficient to
coordinate the use of its various generation assets, Exelon will procure
transmission service to transport that power from the source - the Illinois
generating station in this example-- to the ultimate sink or delivery point,
which in this case would be a delivery point on the PJM transmission system,
because PECO's provider-of-last resort customers are located within the PJM
transmission system. This would require reservation of transmission along what
is called a contract path, made up of

_______________________
     /22/   As more fully described in the Application-Declaration, if it is not
feasible for regulatory, tax or other reasons to transfer generating facilities
to Genco, Genco will nevertheless perform the coordination function for Exelon
described herein.

                                       9
<PAGE>

transmission systems that link the source in Illinois to the sink in
Pennsylvania. Currently, there are at least three alternate paths that could be
used:

     1.  ComEd to American Electric Power (AEP) to Allegheny Power to PJM

     2.  ComEd to AEP to FirstEnergy to PJM; or

     3.  ComEd to AEP to Virginia Electric Power to PJM.

     As can be seen, each of the three alternatives involves the same parties
for three of the four segments -- ComEd, AEP and PJM.  The middle link can be
completed over one of three companies.  Thus, Exelon will have flexibility to
use any one of the three available paths to meet its needs.  Exelon likely will
use all three simultaneously at times, and in any event will procure the most
cost effective path available./23/

     Each of these transmission systems referred to above has an OATT on file
with FERC./24/ The OATT provides all eligible users, such as the new Exelon, the
right to purchase transmission, if available, at tariffed rates. As will be
detailed below, transmission capacity in the amounts likely to be needed for the
coordinated operations of Exelon is expected to be available for the foreseeable
future./25/

     Transmission service is reserved for a specific time period for a specific
amount of power measured in megawatts (MW). Transmission service may be reserved
for as short as one hour or for as long as several years. Transmission service
may be requested and reserved far in advance of the date the transmission is to
be used. Once the transmission service is reserved, the user has the right -- to
the exclusion of others based on a priority system explained below -- to use
that amount of capacity during the specified time period.

     Based on the considerable experience of PECO and ComEd in wholesale energy
transactions, Exelon will likely forecast its anticipated need for transmission
service for a one to five year planning period./26/ Then, based on public data
as to available transmission and its

_____________________
     /23/ Other paths are also available but require going over additional
systems.

     /24/ Allegheny Power System, Inc., et al., 80 FERC (P) 61,143 (1997),
          -----------------------------------
order on reh'g,  85 FERC (P) 61,235(1998); American Electric Power. Service
                                           ----------------------- --------
Corp., 78 Corp., 78 FERC (P) 61,070, orders on reh'g, 79 FERC (P) 61,061 (1997)
and 82 FERC (P) 61,204 (1998);Commonwealth Edison Co., 88 FERC (P) 61,296
                              ------------------------
(1999); Commonwealth Edison Co., 90 (P) FERC  61,121 (2000); First Energy
         -----------------------                             ------------
Operating Companies, 85 FERC (P) 61,392 (1998); PJM Interconnection, L.L.C., 88
- -------------------
FERC (P) 61,039 (1999); Virginia Electric and Power Company, 87 FERC (P) 61,082
                        -----------------------------------
(1999).

     /25/ Furthermore, as noted above, the transmission owner is obligated under
its OATT to expand capacity in accordance with FERC rules if Exelon desires
long-term firm transmission that would otherwise be unavailable. According to
the Pro Forma OATT, if the transmission provider determines that a System Impact
Study is required to assess whether or not system expansion is required, it must
use due diligence to complete the study within sixty (60) days upon receipt of
an executed System Impact Study Agreement. FERC Pro Forma Open Access
Transmission Tariff, Section 19.0, Additional Study Procedures for Firm
Point-to-Point Transmission Service Requests.

     /26/ There is a great deal of public information available to help Exelon's
planning.  In addition to available transmission capacity ("ATC") which is
posted on each transmission provider's OASIS site, other

                                       10
<PAGE>

evaluation of the likely future markets, it will make the reservations it
believes, based on its business judgement, are necessary to ensure continued
integrated and coordinated operations./27/

     Transmission service is reserved through the provider's Internet OASIS
site. Each provider must post on its OASIS all its available transmission
capacity ("ATC") -- what it has available to sell -- for long-term and short-
term reservations.  A user will determine when it needs transmission service,
check the OASIS listings to ensure sufficient ATC is available for the required
time period on each leg of the transfer, and then place the reservation./28/
Reservation requests are submitted by inputting the request directly to the
OASIS site./29/ The transmission provider must respond to the request within the
time period specified under the OATT -- the longer the term of the reservation,
the longer the allowed response time. Within the time allowed, the provider must
either accept the reservation or provide a reason permitted under the OATT for
denying the request./30/ Exelon will have entered into standard transmission
service agreements with each potential provider and the specific transaction
reserved will be subject to that agreement.  Reserving transmission capacity is
an on-going, normal, day-to-day operation.  Exelon will periodically assess its
long-term needs and will adjust its specific reservations as needed on a short-
term basis./31/

     The transmission capacity reservations thus procured by Exelon may be
either firm or non-firm.   Under the OATTs, there is a hierarchy of service --
and a corresponding variation in cost.  "Firm" service is the most reliable.
Firm service is available for long-term (i.e., one year or more), monthly,
weekly and daily periods. The transmission provider may "cut" (i.e., refuse to
initiate or curtail use of the transmission for energy deliveries
notwithstanding the firm reservation) only when the reliability of the system is
threatened -- in short, in emergency situations.  All users of firm service --
including the owner of the transmission facilities with respect to its "native
load" -- must be treated equally when service is cut..

- --------------------------------------------------------------------------------
information is available on the Internet and elsewhere. Information regarding
transmission system conditions and projected changes is available from the
regional reliability councils, and from the North American Electric Reliability
Council ("NERC"). For example, NERC makes available information on "TLRs" --
Transmission Line-loading Relief events. These are circumstances when system
conditions required curtailment or cutting of transmission transactions.
Analysis of this information can indicate where, and for what periods, firm
reservations would be prudent. As RTO's develop, they likely also will be a
source of information for planning purposes.

     /27/   Significant improvements in transmission and resource planning have
also occurred since 1935. There are several software packages available today
that enable the system planner to model the operation of most of the equipment
used on a power system. Studies can be performed that not only evaluate power
transfer capabilities, but also allow the system planner to add different types
of equipment to determine their impact on increasing power transfer
capabilities. Leslie Lamarre, The Digital Revolution, EPRI Journal, (Jan./Feb.
                               ----------------------
1998).

     /28/   This is done over the Internet. The user places a "query" on the
OASIS site for the path, amount and time desired. The OASIS software will
perform a search and return results of what transmission is available within
those parameters.

     /29/   Long-term reservations (for a period of one year or more) must be
made at least 60 days in advance of the start date but can be requested and
     --------
confirmed before that 60 day period. Short-term, non-firm reservations can be
          ------
made on shorter notice -- monthly, on 60 days notice; daily, on 48 hours notice
and hourly, by noon of the day before.

     /30/   Other than rejections for technical non-compliance with the terms of
the OATT in the request, which can be corrected by the user, the transmission
provider, in general, may only reject a reservation request based on
insufficient transmission capacity to fully meet the request in the amount and
for the time period specified.

     /31/   Under the OATT, most transmission providers allow users to
"rollover" a long-term reservation of a year or more, which in effect this gives
the user a right of first refusal on future reservations of transmission
capacity at the end of the period of a long-term reservation.

                                       11
<PAGE>

situations./32/ All users of firm service -- including the owner of the
transmission facilities with respect to its "native load" -- must be treated
equally when service is cut./33/

     Firm service is generally more costly than non-firm service. Transmission
providers may offer non-firm users a discount off the providers' tarriffed rate
for firm service. Exelon will mix its firm service reservations, which carry a
higher relative cost, with non-firm service.  Non-firm is available for monthly,
weekly, daily and hourly periods.  Although non-firm service is, of course,
subject to being cut before firm service (and the shorter the period, the lower
its priority), based on experience, Exelon will be able to determine when and
where non-firm service will be economical and reliable./34/

     Many periods and places of peak usage of the transmission system can be
accurately forecast.  In the hot summer months, areas that typically must import
power may put a strain on the transmission system.  If Exelon forecasts a need
to move power through a congested area to meet its own coordination needs, it
likely would reserve firm transmission at that point and for the time periods of
expected heavy demand.  The service reserved can be tailored to Exelon's needs.
Available transmission products allow a user like Exelon to most efficiently use
its firm reservations and afford considerable flexibility for last minute
changes in reservations to meet changing market conditions.  Importantly, Exelon
would not necessarily have to reserve firm transmission service for a long-term
period in order to ensure availability of transmission service in the peak
period.  Exelon's experience will indicate when and where firm is needed and
when reliance on short-term, non-firm reservations will suffice./35/

     By establishing a basic level of long-term, firm reservations over those
portions of the path where deemed necessary, Exelon will be able to establish
with a high degree of reliability that service will be available to it when
needed because it will be able to supplement this "base" amount with short-term
products to meet other needs as they develop.  Development of a package of
reservations, on various paths and for various time periods, is a dynamic
process, not a static, one time event.  By constantly monitoring its needs and
the capacity it has reserved, Exelon will be able to maintain its coordinated
operations.

     This description of the transmission reservation process under OATTs and
OASIS shows that reserving firm transmission service, over one entire contract
path between Exelon's eastern and western areas for all hours of the day, 365
days a year would almost certainly result in times when Exelon would not need to
use that service, or in times when it could easily have arranged

_______________________
     /32/   The experience of ComEd and PECO is that firm transmission is only
rarely cut and uncontrollable events such as storm damage is the usual cause.

     /33/   FERC Pro Forma Open Access Transmission Tariff, Section 13.6,
Curtailment of Firm Transmission Service.

     /34/   Non-firm reservations of equal duration are cut on a pro-rata basis.

     /35/   Under the OATT, a confirmed firm reservation may be cancelled in
certain circumstances if the transmission provider receives a later request for
transmission service having a longer duration in an overlapping period.
Transmission users are protected from last minute cancellations under the OATT
(e.g., a one-week firm reservation may be cancelled only up to one week before
it begins.) This is one of many factors that must be considered when making
long-range plans regarding what transmission capacity should be reserved to
provide reasonably reliable transmission service for anticipated needs.

                                       12
<PAGE>

transmission on a short term basis and not incurred the cost of the long-term
reservation. In other words, a single, long-term firm contract path is not the
most cost effective means to establish the interconnection necessary to meet the
integration requirement.

     Furthermore, the development of regional organizations will expand the
geographic reach of the entity controlling the reservation process. As larger
areas come under the control of a single entity, that entity's OASIS site will
give users a "one-stop" ability to make reservations over multiple transmission
systems for long-distance transactions.

     PECO is a member of the PJM Independent System Operator (ISO).  The PJM ISO
operates the transmission systems of the members in the PJM power pool.  ComEd
is a member of the Midwest ISO (MISO) approved by FERC in September 1998./36/
MISO is scheduled to commence operation by mid to late 2001.

     In December 1999, the FERC conditionally approved the formation of the
Alliance Regional Transmission Organization (Alliance)./37/  AEP, FirstEnergy,
Virginia Electric and Power (and others) are members of the Alliance. Thus, the
MISO, Alliance, which expects to begin operations in 2001, and PJM form a
continuous contract path between the ComEd and PECO systems./38/

     Scheduling  Actual Movements of Power.
     --------------------------------------

     The third step in the process of moving power  - the one that actually
makes the power move -- is scheduling the delivery of the energy to be moved
from generation in one area of the Exelon system to the customer, or load, in
another area.  Scheduling means notifying the transmission providers on whose
systems reservations have been made (either many months ago, or just the day
before) of the amount of power that will be flowing -- where the power is
originating and when, where it is going or sinking, what hours it will flow, how
many MWs will flow, how line losses will be provided for and other necessary
information. With this notification the transmission providers will know where
the power is coming from, where it is going and which transmission reservation
is being used. A transmission customer must also let the transmission provider
know the other control areas or systems the transmission customer will use for
the particular transaction.  Much of this information is provided through
posting to the OASIS site.

     Scheduling is a continuous process.  It will be coordinated for Exelon by
Genco using the real-time information concerning the status of all generating
facilities controlled by Exelon.  Genco will use that information, and the
information about the transmission capacity available to Exelon, to economically
match supply and demand.  Although the description may appear complex, much of
the scheduling process is automated and routine.

___________________________
     /36/   84 FERC (P) 61,231, order on reconsideration, 85 FERC (P) 61,250,
order on reh'g, 85 FERC (P) 61,372 (1998)

     /37/   89 FERC (P)  61,298 (1999).

     /38/   FERC Order 2000 imposes additional requirements on ISOs in order for
them to become regional transmission organizations designed to enhance further
the efficiency and operation of interstate wholesale electric markets.

                                       13
<PAGE>

     The physical control of the transmission grid is accomplished through
"control areas"./39/  The operator of a control area makes sure that generation
and demand is balanced in the control area. Power moving across a control area
in a wholesale transaction must be taken into account in this balancing process.
The scheduling process informs the control area operators to enter the
transaction in their control computers so that the system will be adjusted to
accommodate the transaction. The transmission provider's control computers will
adjust generation within the control area in accordance with the North American
Electric Reliability Council ("NERC") Operating Guidelines to balance the actual
flow to match the scheduled flow, thus effectuating the transaction in real-
time. This process is the normal and long-standing method by which the electric
power system of North America is controlled to maintain a constant frequency and
ensure the interchange of energy between areas.

     Actual Experience.
     ------------------

     The feasibility of transmitting power between the ComEd electric system and
the PECO electric system is clearly demonstrated by the actual recent operations
of the companies.  ComEd and PECO have had in place a 300 MW firm power sales
arrangement from ComEd to PECO since 1996.  PECO has been able to move this
power to Pennsylvania for its use through a portfolio of open access
transmission arrangements. With regard to the 300 MW transaction, non-firm
transmission has been the primary vehicle used for moving this power, with firm
segments used only where necessary to avoid potential congestion.  Historically,
there has been no need to procure end-to-end firm transmission over the entire
path for this transaction and no need is anticipated in the foreseeable
future./40/

     PECO has not historically experienced difficulty in moving power or
interruptions of its transmission service notwithstanding its partial use of
non-firm transmission arrangements./41/  Data for calendar year 1999 indicate
that an average of about 48% of the power supplied under the 300 MW contract
during "off-peak" periods was transmitted to PJM for use by PECO load./42/ This
percentage ranged from a high of 73% in October 1999 to a low of 25% in March
1999. Furthermore, a significant amount of the power moved from ComEd to PECO
under the 300 MW contract has moved during periods of "peak" usage. The average
amount delivered to PECO was about 37% with the highest amount being 61% in
September 1999 and the lowest 13% in March 1999. The experience for 1999 is
typical of that experienced over the life of the contract.

____________________
     /39/   Generally, a control area is the same as the service area of a
single utility. For example, ComEd's transmission system constitutes a single
control area as does AEP's. As RTO's develop, they will assume much of the
control area functions.

     /40/   This information is given by way of example and does not mean that a
300 MW transfer from ComEd to PECO will necessarily be a part of how Exelon
conducts its coordinated operations.

     /41/   PECO does not believe there has ever been a failure to deliver the
power from ComEd to PECO when it was scheduled to be delivered to PECO.

     /42/   The 300 MW purchase agreement was procured by PECO partially in
anticipation of its native load requirements and partially to support PECO's
competitive marketing business. The balance of the power not used by PECO was
sold to wholesale customers.

                                       14
<PAGE>

     In light of this operating history, an increase in the use of "firm"
transmission products for this sale would not be economic, and would only result
in added expense with no incremental gain in the ability to deliver power from
ComEd to PECO and vice-versa./43/

     To demonstrate that there is adequate transmission capacity over the
alternative paths that Exelon would use to coordinate its operations between
ComEd and PECO, Exelon determined the ATC for the year 2000 as of February 2000
on the systems forming the contract path between ComEd and PECO. The following
chart summarizes this information. ComEd and PECO believe, based on their
experience in conducting their wholesale electric businesses, that sufficient
interconnection capacity will be available for the foreseeable future to
satisfactorily coordinate the operations of Exelon.

                           ATC as of February, 2000

                Period January 1, 2000 through January 1, 2001


                                         Lowest ATC Posted
                                         -----------------
       System          Path                   On OASIS
       ------          ----                   --------

       CE              CE - AEP        3000 MW
       AEP              CE - VP        2000 MW
       AEP             CE - APS        3000 MW
       AEP              CE - FE        0 MW (6/00, 7/00 & 8/00)
                                       >3000 MW in all other
                                       periods
       VP               AEP-PJM        1210 MW
       APS              AEP-PJM        1000 MW
       FE               AEP-PJM        893 MW.

     The amount of power that can be moved over the contract paths described
above is, of course, limited to the smallest amount available on any point of
the path.  The "bottleneck" determines the real ability to move power.  As shown
above, one leg of the path from ComEd to PECO -- the AEP system path from ComEd
to FirstEnergy-- is showing zero ATC for June, July and August of 2000.  As an
alternative, however, Exelon will be able to use the path of AEP to either
Virginia Power (VP) or Allegheny Power (APS) in place of the connection to
FirstEnergy.

______________________________
     /43/   In addition to the 300 MW long-term, firm sales contract, ComEd and
PECO have engaged in short-term or "spot" transactions, moving both ways, from
time to time. Power purchased on a spot basis has also moved between the
utilities in the same manner.

     /44/   Source: OASIS sites of each of the following transmission providers:

     CE   Commonwealth Edison        VP   Virginia Power
     AEP  American Electric Power    APS  Allegheny Power
     FE   FirstEnergy

                                       15
<PAGE>

As shown in the chart, those paths show ATC of 2,000 and 3,000 MW, respectively.
Finally, while the last leg of the path -- to PJM -- has only 893 MW of ATC over
the FirstEnergy system, the alternates of VP and APS have higher amounts./45/

     As another way to measure the reliability of the approach PECO has taken to
move power under the 300 MW contract, and thus infer the reliability with which
Exelon will be interconnected, Applicant has done an analysis to determine the
likelihood that a hypothetical transmission of 300 MW between ComEd and PECO
using 100% non-firm reservations would have been cut by reason of transmission
- --------------------------------
constraints.  This analysis covered the period of October 1, 1998 to September
30, 1999.  It assumed that 300 MW would be transferred from ComEd to PECO all
hours of each day (which is a highly unlikely requirement). Using publicly
reported data regarding TLRs (i.e., incidents where transmission was curtailed)
over the possible paths that a 300 MW transaction would take, Applicant
determined that this hypothetical non-firm reservation transaction would have
been cut from a low of 0.7% of the time to a high of 3.3% of the time depending
on the path used. This analysis further showed that the same 300 MW transaction
all hours of each day on firm transmission reservation would never have been
                         -----------------------------
cut.  These data show that obtaining costly firm transmission adds only a very
small percentage increase in reliability which, in Exelon's view is not worth
the incremental cost.  Rather, the use of a combination of firm and non-firm
open access transmission as a means to establish the necessary interconnections
to coordinate the activities of Exelon is economical and highly reliable.

_______________________
     /43/   Exelon cannot forecast at this time the amounts of transmission
capacity it may need but believes these data indicate that there will be more
than a sufficient amount of capacity to be able to efficiently conduct
coordinated operations.

                                       16
<PAGE>

                                   Conclusion
                                   ----------

     Further Developments from RTOs
     ------------------------------

     The open access transmission available today under OATTs and OASIS and
Order No. 888 is fully sufficient to establish an effective and economical means
of interconnection for the Exelon system.  This method of interconnection does
not depend on the further development of interstate transmission markets.
Although the current system is sufficient to establish interconnection, FERC has
recognized that improvements can be made. FERC is seeking further efficiency in
operation of the interstate transmission grid by encouraging transmission owners
to join a regional transmission organization ("RTO") that would have certain
specified characteristics. On December 15, 1999, FERC issued Order No. 2000
providing that each public utility that owns, operates, or controls transmission
facilities must make certain filings with respect to forming and participating
in an RTO -- i.e., a properly constituted ISO or transmission company
             ----
("TRANSCO").

     FERC expects that properly configured RTOs, through control over a larger,
regional grid, will:

     .  improve transmission congestion management on the grid;/46/

     .  improve efficiency by providing more accurate estimates of available
        transfer capability than those currently provided by individual
        systems;/47/

________________________
     /46/ As FERC explains:

          The scheduling of power by multiple utilities over a regional grid can
          lead to unexpected overloads on constrained facilities. This can be a
          serious barrier to competitive power trading because some power sale
          transactions may be have to be curtailed. With a regional scope, an
          RTO would be better able to mange congestion. An RTO would be in a
          better position to prevent congestion or control it through
          application of appropriate region wide congestion pricing to ration
          use of the grid if necessary. An RTO would also more readily identify
          schedules that could lead to congestion, and relieve congestion
          through regional redispatch authority.

RTO NOPR at 33,716.

     /47/ The FERC explains this benefit as follows:

          Conditions on all parts of the regional grid affect ATC on individual
          utility systems. Factors such as load estimates, generation and
          transmission outages, generation dispatch orders and transactions on
          individual systems can affect the determination of ATC. An individual
          utility may not have complete or timely information regarding such
          factors and may apply assumptions and criteria in its ATC estimates
          that are different from those of neighboring transmission operators,
          leading to wide variations in ATC values for the same transmission
          path.

          An RTO would produce better ATC estimates because it would have access
          to complete regional usage information, would have current information
          because the RTO will be the security coordinator as well as the OASIS
          site

                                       17
<PAGE>

     .  allow for more effective management of parallel path flows by
        internalizing such flows within the RTO-controlled system;/48 and

     .  allow for more efficient planning for transmission or generation
        investments needed to increase transmission capacity./49/

     Among other benefits, an RTO price structure further reduces "rate
pancaking," allowing power on the most distant edges of the region to be
transmitted at market price with no additional cost for transmission than would
exist for a nearby transaction or even the generation-to-end-user within a
utility's own service area.  RTOs will thus increase the efficiency of using
open access as a means of interconnection.

     Because RTOs will offer service to customers on a system-wide basis under a
single FERC-approved tariff, customers will have available "'one stop shopping'
for regional transmission service . . . resulting in simpler and more efficient
procedures for transmission users to transmit power over greater distances."/50/
The emergence of RTOs, with the encouragement of FERC, will further facilitate
wholesale competition, moving the industry further from the vertically-
integrated utility model under which utilities relied substantially on their own
resources to serve their loads.

     As can be seen, each of the advances sought through the development of RTOs
will improve the efficiency of a basic system that is already in place.  There
is no essential part of the open access system that remains to be developed in
order for it to be used as a means to establish the interconnection necessary to
meet the integration test under the Act.

     The Exelon System Will be Interconnected
     ----------------------------------------

     Due to these and other developments at the federal level, the landscape of
the electric industry has changed dramatically in recent years.  Wholesale power
markets have developed from a balkanized, utility specific, cost-based structure
to a more competitive market-based structure./51/ The development of the
OATT/OASIS regime has provided important new means of achieving interconnection
and integration under the Act. The Commission already has recognized many of
these changes in its decisions in UNITIL Corp., Holding Co. Act Release No.
                                  ------------
25524 (April 24, 1992) and Conectiv, Inc., Holding Co. Act Release No. 26832
                           --------------
(February 25, 1998). The Commission should find that, in the case of the Exelon
system, open access transmission as described herein constitutes interconnection
within the meaning of the Act.

____________________
          administrator, and would calculate ATC values on a consistent
          region-wide basis using a regional flow model.

  RTO NOPR at 33,716.

     /48/ RTO NOPR at 33,717.

     /49/  "One advantage of an RTO that is helpful in planning is that it will
be able to see the 'big picture.' Planning and expansion of grid facilities will
no longer be done on a piecemeal basis."

     /50/ RTO NOPR at 33,717.

     /51/ Indeed, FERC in Order No. 888 invoked the widely-differing cost of
utility-generated electricity across the major regions of the country as
evidence of the need for reform. Order No. 888 at 31,651-52.

                                       18


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