COMMONWEALTH ENERGY SYSTEM
10-K405, 1999-03-31
ELECTRIC & OTHER SERVICES COMBINED
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                 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                          Washington, D. C. 20549-1004

                                    Form 10-K

                  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

(Mark One)
[ X ]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
       EXCHANGE ACT OF 1934

       For the fiscal year ended December 31, 1998

                                       OR

[   ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
       EXCHANGE ACT OF 1934

       For the transition period from ________________ to ________________

                          Commission file number 1-7316

                             COMMONWEALTH ENERGY SYSTEM                   
       (Exact name of registrant as specified in its Declaration of Trust)

        Massachusetts                                           04-1662010     
(State or other jurisdiction of                             (I.R.S. Employer
incorporation or organization)                             Identification No.)

One Main Street, Cambridge, Massachusetts                      02142-9150
(Address of principal executive offices)                       (Zip Code)

                                (617) 225-4000                    
              (Registrant's telephone number, including area code)

           Securities registered pursuant to Section 12(b) of the Act:

     Title of each class        Name of each exchange on which registered
Common Shares of Beneficial           New York Stock Exchange, Inc.
   Interest $2 par value              Pacific Exchange, Inc.

           Securities registered pursuant to Section 12(g) of the Act:

                                 Title of Class
                                      None

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to
this Form 10-K. [ x ]

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports) and (2) has been subject to such
filing requirements for the past 90 days. YES [ x ] NO [   ]

Aggregate market value of the voting stock held by non-affiliates of the
registrant as of March 16, 1999:  $801,039,203

Common Shares outstanding at March 16, 1999:  21,540,550 shares

Document Incorporated by Reference                Part in Form 10-K

None                                              Not applicable

               List of Exhibits begins on page 75 of this report.
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                           COMMONWEALTH ENERGY SYSTEM

                                TABLE OF CONTENTS
                                     PART I
                                                                    PAGE
Item   1.  Business...............................................   3
              General.............................................   3
              Electric Power Supply...............................   5
              Power Supply Commitments and Support Agreements.....   7
              Electric Fuel Supply................................   7
              Nuclear Fuel Supply and Disposal....................   8
              Gas Supply..........................................   8
              Rates, Regulation and Legislation...................   9
              Competition.........................................  18
              Segment Information.................................  19
              Environmental Matters...............................  19
              Construction and Financing..........................  19
              Employees...........................................  20

Item  2.   Properties.............................................  20

Item  3.   Legal Proceedings......................................  21

Item  4.   Submission of Matters to a Vote of Security Holders....  21

                                     PART II
Item  5.   Market for the Registrant's Securities and Related
           Stockholder Matters....................................  22

Item  6.   Selected Financial Data................................  23

Item  7.   Management's Discussion and Analysis of Financial
           Condition and Results of Operations....................  24

Item  7A.  Quantitative and Qualitative Disclosures About
           Market Risk............................................  35

Item  8.   Financial Statements and Supplementary Data............  36

Item  9.   Changes in and Disagreements with Accountants on
           Accounting and Financial Disclosure....................  36

                                    PART III
Item 10.   Trustees and Executive Officers of the Registrant......  62

Item 11.   Executive Compensation.................................  66

Item 12.   Security Ownership of Certain Beneficial Owners and
           Management.............................................  74

Item 13.   Certain Relationships and Related Transactions.........  75

                                     PART IV
Item 14.   Exhibits, Financial Statement Schedules and Reports
           on Form 8-K............................................  75

Signatures........................................................  93
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                           COMMONWEALTH ENERGY SYSTEM

                                     PART I.
Item 1.     Business

General

      Commonwealth Energy System, a Massachusetts trust, is an unincorporated
business organization with transferable shares.  It is organized under a
Declaration of Trust dated December 31, 1926, as amended, pursuant to the laws
of Massachusetts.  It is an exempt public utility holding company under the
provisions of the Public Utility Holding Company Act of 1935, holding all of
the stock of four operating public utility companies.  Commonwealth Energy
System, the parent company, is referred to in this report as the "Parent" and,
together with its subsidiaries, is collectively referred to as "COM/Energy."

      The operating utility subsidiaries of the Parent have been engaged in
the generation, transmission and distribution of electricity and the dis-
tribution of natural gas, all within Massachusetts.  These subsidiaries are:

               Electric                                    Gas

     Cambridge Electric Light Company           Commonwealth Gas Company
     Canal Electric Company
     Commonwealth Electric Company

      In addition to the utility companies, the Parent also owns all of the
stock of a company that operates a total energy plant serving the Longwood
Medical Area of Boston (Advanced Energy Systems, Inc.), a steam distribution
company (COM/Energy Steam Company), a liquefied natural gas (LNG) and
vaporization facility (Hopkinton LNG Corp.), a subsidiary that is pursuing
energy-related business opportunities (COM/Energy Technologies, Inc.), and
five real estate trusts.  An energy marketing subsidiary, COM/Energy
Marketing, Inc., sold its assets to Reliant Energy in February 1999. 
Subsidiaries of the Parent receive technical assistance as well as financial,
data processing, accounting, legal and other services from a wholly-owned
services company subsidiary (COM/Energy Services Company).

      The five real estate subsidiaries are: Darvel Realty Trust, which is a
joint-owner of the Riverfront Office Park complex in Cambridge; COM/Energy
Acushnet Realty, which leases land to Hopkinton LNG Corp. (Hopkinton);
COM/Energy Research Park Realty, which was organized to develop a research
building in Cambridge; COM/Energy Cambridge Realty, which was organized to
hold various properties; and COM/Energy Freetown Realty (Freetown), which
holds 596 acres of land in Freetown, Massachusetts.

      Each of the operating utility subsidiaries serves retail customers
except for Canal Electric Company (Canal Electric).  Canal Electric operated
an electric generating station located in Sandwich, Massachusetts until
December 30, 1998 when it was sold pursuant to COM/Energy's electric industry
restructuring plan that was approved by the Massachusetts Department of
Telecommunications and Energy (DTE) and is consistent with the Electric
Industry Restructuring Act passed by the Massachusetts legislature in 1997. 
The station consisted of Canal Unit 1, an oil-fired steam electric generating
unit that was wholly-owned by Canal Electric with a rated capacity of 569
megawatts (MW), and Canal Unit 2, a steam electric generating unit with dual-
fuel capability (oil and natural gas) that was jointly-owned by Canal Electric
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                           COMMONWEALTH ENERGY SYSTEM

and Montaup Electric Company (Montaup) (an unaffiliated company) with a rated
capacity of 580 MW.  Canal Unit 2 was operated under an agreement with Montaup
which provides for the equal sharing of output, fixed charges and operating
expenses.

      Electric service is furnished by Cambridge Electric Light Company (Cam-
bridge Electric) and Commonwealth Electric Company (Commonwealth Electric) at
retail to approximately 327,000 year-round and 45,500 seasonal customers in 41
communities in eastern and southeastern Massachusetts covering 1,112 square
miles and having an aggregate population of 645,000.  The territory served
includes the communities of Cambridge, New Bedford and Plymouth and the
geographic area comprising Cape Cod and Martha's Vineyard.  Cambridge Electric
also sells power at wholesale to the Town of Belmont, Massachusetts.

      Natural gas is distributed by Commonwealth Gas Company (Commonwealth
Gas) to approximately 239,000 customers in 51 communities in central and
eastern Massachusetts covering 1,067 square miles and having an aggregate
population of 1,128,000.  Twelve of these communities are also served by
Cambridge Electric or Commonwealth Electric with electricity.  Some of the
larger communities served by Commonwealth Gas include Cambridge, Somerville,
New Bedford, Plymouth, Worcester, Framingham, Dedham and the Hyde Park area of
Boston.

      Advanced Energy Systems, Inc.'s principal assets include a total energy
plant (MATEP) and related contracts that were acquired on June 1, 1998 from
Harvard University.  MATEP provides steam, electricity and chilled water
services to several hospitals and professional schools in the Longwood Medical
Area of Boston under long-term contracts that will remain in place until at
least September 2015.  Its major customers are Brigham and Women's Hospital,
Beth Israel Deaconess Hospital, Dana-Farber Cancer Institute, the Joslin
Diabetes Center, Children's Hospital and Harvard's medical, dental and public
health schools.  For additional information concerning MATEP, refer to Note
3(e) of Notes to Consolidated Financial Statements filed under Item 8 of this
report.

      Steam, which was produced by Cambridge Electric in connection with the
generation of electricity, was purchased by COM/Energy Steam and, together
with its own production, is distributed to 19 customers in Cambridge and two
customers (including Massachusetts General Hospital) in Boston.  Steam is used
for space heating and other purposes.

      Industry in the territories served by COM/Energy companies is highly
diversified.  The larger industrial customers include high-technology firms
and manufacturers of such products as photographic equipment and supplies,
computer diskettes, rubber products, textiles, wire and other fastening
devices, abrasives and grinding wheels, candy, copper and alloys, and
chemicals.

      In December 1998, the Parent signed an Agreement and Plan of Merger with
BEC Energy, the parent company of Boston Edison Company, that will create
NSTAR, an energy delivery company serving approximately 1.3 million customers
located entirely within Massachusetts including more than one million electric
customers in 81 communities and 240,000 gas customers in 51 communities.  The
merger is expected to occur shortly after the satisfaction of certain
conditions, including receipt of certain regulatory approvals.  The regulatory
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                           COMMONWEALTH ENERGY SYSTEM

approval process is expected to be completed during the second half of 1999.

Electric Power Supply

      On May 27, 1998, COM/Energy agreed to sell substantially all of its non-
nuclear generating assets (984 MW) to affiliates of The Southern Company of
Atlanta, Georgia.  The sale was conducted through an auction process that was
outlined in a restructuring plan filed with the DTE in November 1997 in
conjunction with the state's industry restructuring legislation enacted in
1997.  The sale was approved by the DTE on October 30, 1998 and by the FERC on
November 12, 1998.  Proceeds from the sale of these assets, after
construction-related adjustments at the closing that occurred on December 30,
1998, amounted to approximately $453.9 million or 6.1 times their book value
of approximately $74.2 million.  The proceeds from the sale, net of book
value, transaction costs and certain other adjustments, amounted to $358.6
million and will be used to reduce transition costs related to electric
industry restructuring that otherwise would have been collected through a non-
bypassable transition charge.

      Prior to December 30, 1998, COM/Energy owned generating facilities with
a net capability at the time of peak load (1,004.7 MW on July 23, 1998)
totaling 1,010.6 MW including 559.2 MW provided by Canal Electric Unit 1, of
which three-quarters (419.4 MW) was sold to neighboring utilities under long-
term contracts, and 275.7 MW was provided by Canal Unit 2.  Another 126.1 MW
was provided by various smaller units.  Of the 541.6 MW available to
COM/Energy, 63.1 MW was used principally for peaking purposes.  Central Maine
Power Company's Wyman Unit 4, an oil-fired facility in which COM/Energy had a
1.4% joint-ownership interest, provided 8.8 MW. 

      A 3.52% ownership interest in the Seabrook 1 nuclear power plant
provides 40.9 MW of capability to COM/Energy.  In addition, through Canal
Electric's equity ownership in Hydro-Quebec Phase II, COM/Energy has an
entitlement of 67.8 MW.  Purchase power arrangements were also in place with
four natural gas-fired cogenerating units in Massachusetts totaling 204.7 MW. 
COM/Energy also receives 67 MW from a waste-to-energy plant and has
entitlements totaling 23.4 MW through contracts with four hydroelectric sup-
pliers.

      To satisfy demand requirements and provide required reserve capacity,
COM/Energy supplemented its generating capacity by purchasing power on a long
and short-term basis through capacity entitlements under power contracts with
other New England and Canadian utilities and with Qualifying Facilities and
other non-utility generators through a competitive bidding process that is
regulated by the DTE.

      Pursuant to a restructured Power Sale Agreement (PSA), effective January
1, 1995, a non-utility generator (NUG) ceased supplying capacity and energy to
Commonwealth Electric.  The restructured PSA defers Commonwealth Electric's
obligation to purchase the NUG's capacity and energy for a maximum of six
years.

      COM/Energy also has available 84.8 MW from two operating nuclear units
in which its distribution companies have life-of-the-unit contracts for power. 
Information with respect to these units is as follows:
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                           COMMONWEALTH ENERGY SYSTEM

                                        Vermont
                                         Yankee               Pilgrim

Year of Initial Operation                 1972                1972
Contract Expiration Date                  2012                2004
Equity Ownership (%)                      2.50                -
Plant Entitlement (%)                     2.25                11.0
Plant Capability (MW)                    531.0                668.9
COM/Energy Entitlement (MW)               11.2                73.6

    Commonwealth Electric has an 11% entitlement in the Pilgrim nuclear power
plant that is expected to be sold by Boston Edison Company in 1999 to Entergy
Nuclear Generating Company.  In conjunction with this sale, Commonwealth
Electric has reached an agreement to buy out of this contract, but will
continue to buy power on a declining basis through 2004.  Cambridge Electric
has a 2.5% equity ownership in the Vermont Yankee nuclear power plant. 
Vermont Yankee has granted AmerGen Energy Co. an exclusive right to negotiate
an agreement to buy the plant.

      Information relative to nuclear units that are no longer operating in
which COM/Energy has an equity ownership is as follows:

                                           Connecticut    Maine      Yankee
                                              Yankee      Yankee     Atomic
                                                (Dollars in thousands)

Year of Shutdown                                1996       1997        1992
Equity Ownership (%)                            4.50       4.00        4.50
Equity Ownership Balance                      $4,713     $3,476        $395

For additional information, refer to Note 3(d) of the Notes to Consolidated
Financial Statements filed under Item 8 of this report.

      Cambridge Electric, Canal Electric and Commonwealth Electric, together
with other electric utility companies in the New England area, are members of
Independent System Operator (ISO) - New England (formerly the New England
Power Pool or NEPOOL), which was formed in 1971 to provide for the joint
planning and operation of electric systems throughout New England.  ISO - New
England operates a centralized dispatching facility to ensure reliability of
service and to dispatch the most economically available generating units of
the member companies to fulfill the region's energy requirements.  This
concept is accomplished by use of computers to monitor and forecast load
requirements.

      ISO - New England, on behalf of its members entered into an
Interconnection Agreement with Hydro-Quebec, a Canadian utility operating in
the Province of Quebec.  The agreement provided for construction of an
interconnection (referred to as the Hydro-Quebec Project-Phase I and Phase II)
between the electrical systems of New England and Quebec.  The parties also
entered into an Energy Contract and an Energy Banking Agreement; the former
which obligated Hydro-Quebec to offer ISO - New England participants up to 33
million MWH of surplus energy during an eleven-year term that began September
1, 1986 has since expired, and the latter provided for energy transfers
between the two systems.  ISO - New England also entered into Phase II
agreements for an additional purchase from Hydro-Quebec of 7 million MWH per
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                           COMMONWEALTH ENERGY SYSTEM

year for a twenty-five year period that began in late 1990.

      Canal Electric is obligated to pay its share of operating and capital
costs for Phase II over a 25 year period ending in 2015.  Future minimum lease
payments for Phase II have an estimated present value of $11.1 million at
December 31, 1998.  In addition, Canal has an equity interest in Phase II
which amounted to $2.8 million in 1998 and $3.1 million in 1997.

      COM/Energy's electric subsidiaries are also members of the Northeast
Power Coordinating Council (NPCC), an advisory organization that includes the
major power systems in New England and New York plus the Provinces of Ontario
and New Brunswick in Canada.  NPCC establishes criteria and standards for
reliability and serves as a vehicle for coordination in the planning and
operation of these systems.

      The reserve requirements used by the ISO - New England participants in
planning future additions are determined by ISO - New England to meet the
reliability criteria recommended by the NPCC.  COM/Energy estimates that,
during the next ten years, reserve requirements so determined will be
approximately 20% of peak load.

Power Supply Commitments and Support Agreements

      Cambridge Electric and Commonwealth Electric, through Canal Electric,
secure cost savings for their respective customers by planning for bulk power
supply on a single system basis.  Additionally, Cambridge Electric and
Commonwealth Electric have long-term contracts for the purchase of electricity
from various sources.  Generally, these contracts are for fixed periods and
require payment of a demand charge for the capacity entitlement and an energy
charge to cover the cost of fuel.  For additional information concerning
commitments under long-term power contracts, refer to Note 3(d) of Notes to
Consolidated Financial Statements filed under Item 8 of this report.

      COM/Energy's 3.52% interest in the Seabrook nuclear power plant is
owned by Canal Electric to provide for a portion of the capacity and energy
needs of Cambridge Electric and Commonwealth Electric.  For additional
information concerning Seabrook 1, refer to Note 3(b) of Notes to Consolidated
Financial Statements filed under Item 8 of this report.

      Commonwealth Electric and Cambridge Electric continue to evaluate bids
related to capacity entitlements associated with power contracts in response
to electric industry restructuring legislation enacted in Massachusetts in
November 1997.

Electric Fuel Supply

      (a) Oil and Natural Gas

      Of COM/Energy's total energy requirement for 1998, approximately 48%
was generated using imported residual oil and approximately 30% was generated
using natural gas.

      Effective March 15, 1998, Canal Electric executed a one-year contract
with Coastal Refining and Marketing, Inc. (Coastal) for the purchase of 1%
sulfur residual fuel oil.  The contract provided for delivery of a set
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                           COMMONWEALTH ENERGY SYSTEM

percentage of Canal Electric's fuel requirement, the balance (a maximum of
50%) to be met by spot purchases or by Coastal at the discretion of Canal
Electric.

      Energy Supply & Credit Corporation (ESCO Massachusetts, Inc.) operated
Canal's fuel oil terminal and managed the receipt of and payment for fuel oil
under assignment of Canal Electric's supply contracts to ESCO Massachusetts,
Inc.  Residual fuel oil in the terminal's shore tanks was held in inventory by
ESCO Massachusetts, Inc. and delivered upon demand to Canal Electric's two day
tanks.

      During 1996, Unit 2 was converted to dual-fuel capability, residual
fuel oil and natural gas.  Canal Electric anticipated that dual-fuel
capability would result in future savings as the least expensive fuel was
utilized.

      (b) Nuclear Fuel Supply and Disposal

      Approximately 13% of COM/Energy's total energy requirement for 1998 was
generated by nuclear plants.  The nuclear fuel contract and inventory
information for Seabrook 1 has been furnished to COM/Energy by North Atlantic
Energy Services Corporation (NAESCO), the managing agent responsible for
operation of the unit.  Seabrook's requirement for nuclear fuel components are
100% covered through 2002 by existing contracts.

      There are no spent fuel reprocessing or disposal facilities currently
operating in the United States.  Instead, commercial nuclear electric gener-
ating units operating in the United States are required to retain spent fuel
on-site.  As required by the Nuclear Waste Policy Act of 1982 (the Act), as
amended, the joint-owners entered into a contract with the Department of
Energy for the transportation and disposal of spent fuel and high level
radioactive waste at a national nuclear waste repository or Monitored
Retrievable Storage (MRS) facility.  Owners or generators of spent nuclear
fuel or its associated wastes are required to bear the costs for such
transportation and disposal through payment of a fee of approximately 1
mill/KWH based on net electric generation to the Nuclear Waste Fund.  Under
the Act, a storage or disposal facility for nuclear waste was anticipated to
be in operation by 1998; a reassessment of the project's schedule requires
extending the completion date of the permanent facility until at least 2010. 
Seabrook 1 is currently licensed for enough on-site storage to accommodate
spent fuel expected to be accumulated through at least the year 2010.

Gas Supply

      Commonwealth Gas purchases transportation, storage and balancing
services from Tennessee Gas Pipeline Company (Tennessee) and Algonquin Gas
Transmission Company (and other upstream pipelines that bring gas from the
supply wells to the final transporting pipelines) and purchases all of its gas
supplies from third-party vendors, utilizing firm contracts with terms of less
than one year.  The vendors vary from small independent marketers to major gas
and oil companies.

      In addition to firm transportation and gas supplies mentioned above,
Commonwealth Gas utilizes contracts for underground storage and LNG facilities
to meet its winter peaking demands.  The underground storage contracts are a
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                           COMMONWEALTH ENERGY SYSTEM

combination of existing and new agreements which are the result of Federal
Energy Regulatory Commission (FERC) Order 636 service unbundling.  The LNG
facilities, described below, are used to liquefy and store pipeline gas during
the warmer months for use during the heating season.

      Commonwealth Gas entered into a multi-party agreement in 1992 to assume
a portion of Boston Gas Company's contracts to purchase Canadian gas supplies
from Alberta Northeast (ANE) and have the volumes delivered by the Iroquois
Gas Transmission System and Tennessee pipelines.  The ANE gas supply contract
was filed with the DTE and hearings were completed in April 1993.  The DTE
approved the ANE gas supply contract in November 1995.  Commonwealth Gas is
presently in negotiations with the parties to allow for final execution of all
pertinent agreements and contracts.

      Commonwealth Gas began transporting gas on its distribution system in
1990 for end-users.  As of December 31, 1998, there were 593 customers using
this transportation service, accounting for 11,146 BBTU or approximately 24%
of total throughput.

Hopkinton LNG Facility

      A portion of the gas supply for Commonwealth Gas during the heating
season is provided by Hopkinton LNG Corp. (Hopkinton), a wholly-owned
subsidiary of the Parent.  The facility consists of a liquefaction and
vaporization plant and three above-ground cryogenic storage tanks having an
aggregate capacity of 3 million MCF of natural gas.

      In addition, Hopkinton owns a satellite vaporization plant and two
above-ground cryogenic storage tanks located in Acushnet, Massachusetts with
an aggregate capacity of 500,000 MCF of natural gas that are filled with LNG
trucked from Hopkinton.

      Commonwealth Gas has contracts for LNG service with Hopkinton extending
on a year to year basis with notice of termination required five years in
advance of the anticipated termination date.  Current contract payments
include a demand charge sufficient to cover Hopkinton's fixed charges and an
operating charge which covers liquefaction and vaporization expenses. 
Commonwealth Gas furnishes pipeline gas during the period April 15 to November
15 each year for liquefaction and storage.  As the need arises, LNG is
vaporized and placed in the distribution system of Commonwealth Gas.

      Based upon information presently available regarding projected growth
in demand and estimates of availability of future supplies of pipeline gas,
Commonwealth Gas believes that its present sources of gas supply are adequate
to meet existing load and allow for future growth in sales.

Rates, Regulation and Legislation

      Certain of COM/Energy's utility subsidiaries operate under the
jurisdiction of the DTE which regulates retail rates, accounting, issuance of
securities and other matters.  In addition, Canal, Cambridge Electric and
Commonwealth Electric file their respective wholesale rates with the FERC.
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                           COMMONWEALTH ENERGY SYSTEM

      Electric Industry

      (a) Restructuring Legislation

      On November 25, 1997, the Governor of Massachusetts signed into law the
Electric Industry Restructuring Act (the Act).  This legislation provided,
among other things, that customers of retail electric utility companies who
take standard offer service receive a 10 percent rate reduction and be allowed
to choose their energy supplier, effective March 1, 1998.  The Act also
provides that utilities be allowed full recovery of transition costs subject
to review and an audit process.  The rate reduction mandated by the legisla-
tion increases to 15 percent effective September 1, 1999 for customers who
continue to take standard offer service.  A statewide ballot referendum that
sought to repeal the legislation was defeated by a wide margin on November 3,
1998.

      COM/Energy had filed a comprehensive electric restructuring plan with
the DTE in November 1997, that was substantially approved by the DTE in
February 1998.  The divestiture of COM/Energy's non-nuclear generation assets
and the entitlements associated with its purchased power contracts through an
auction process was an integral part of COM/Energy's restructuring plan and is
consistent with the Act.  While COM/Energy is encouraged with the treatment
afforded net non-mitigable transition costs (which, for COM/Energy, are
primarily the result of above-market purchased power contracts with non-
utility generators) by the legislation and the DTE, the mandated rate reduc-
tion has had a significant impact on cash flows of COM/Energy.  However, the
successful sale of the generating assets, as discussed below, will reduce the
negative impact that the rate reductions will have on future cash flows.

      On May 27, 1998, COM/Energy selected affiliates of Southern Energy New
England, L.L.C. (Southern Energy), an affiliate of The Southern Company of
Atlanta, Georgia, to buy substantially all of its non-nuclear electric
generating assets.  As a result of construction-related adjustments at the
closing on December 30, 1998, the final amount of proceeds from the sale was
approximately $454 million.  These facilities represented 984 megawatts (MW)
of electric capacity and had a book value of $74 million.  The plants sold
include: Canal Unit 1 (566 mw) and a one-half interest in Canal Unit 2 (282.5
MW) located in Sandwich, MA and owned by Canal Electric; the Kendall Station
facility (67 MW) and the adjacent Kendall Jets (46 MW), located in Cambridge,
MA and owned by Cambridge Electric; five diesel generators (13.8 MW) in Oak
Bluffs and West Tisbury on the island of Martha's Vineyard that are owned by
Commonwealth Electric, and a 1.4 percent joint-ownership interest (8.9 MW) in
Wyman Unit No. 4 located in Yarmouth, ME, also owned by Commonwealth Electric.

      COM/Energy continues to evaluate bids related to the purchased power
contracts.  COM/Energy is also evaluating the disposition of the Blackstone
Station generating unit (15.3 MW) owned by Cambridge Electric and located in
Cambridge, MA that is subject to a right of first offer held by Harvard
University on any divestiture of the facility.

      On July 31, 1998, a divestiture filing was submitted to the FERC and
the DTE that requested approval of the sale of the generating assets to
Southern Energy and further proposed (subject to completion of the sale) that
the current 10 percent rate reduction increase, effective January 1, 1999.  On
October 30, 1998, the DTE approved COM/Energy's sale of assets to Southern
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                           COMMONWEALTH ENERGY SYSTEM

Energy.  However, at that time, the DTE deferred ruling on the allocation of
the net proceeds from the sale of Canal Units 1 and 2 between Cambridge
Electric and Commonwealth Electric and on the rate of return to be paid to
customers on the net proceeds from the sale over an eleven-year period.  The
FERC approved the sale on November 12, 1998.

      On December 23, 1998, the DTE approved COM/Energy's proposal to
establish a special purpose affiliate, Energy Investment Services, Inc. (EIS),
that will administer the above-book value net proceeds from the sale of the
Canal units with the goal of preserving capital and maximizing earnings for
the benefit of retail customers.  EIS will credit the proceeds and any return
earned to the accounts of Commonwealth Electric and Cambridge Electric,
resulting in a reduction in the transition costs to be billed to customers. 
In addition, COM/Energy agreed to pursue the buyout of above-market purchased
power contracts, including the Pilgrim nuclear unit in which Commonwealth
Electric has an 11% entitlement.  This transaction is expected to occur in the
second quarter of 1999.

      On December 23, 1998, the DTE approved the divestiture filing that was
submitted to the FERC and the DTE on July 31, 1998 that requested approval of
the sale of the generating assets to Southern Energy and further proposed
(subject to completion of the sale which occurred December 30, 1998) that the
10 percent rate reduction increase, effective January 1, 1999, to
approximately 12 percent for Commonwealth Electric and to approximately 16
percent for Cambridge Electric.  In addition, the companies proposed to
increase the retail price of standard offer service, starting January 1, 1999,
from 2.8 cents per kilowatthour (kwh) to 3.5 cents.  At the same time, the
transition charge for Commonwealth Electric's customers declined from 4.08
cents per kwh to 3.159 cents and for Cambridge Electric's customers from 2.73
cents per kwh to 1.447 cents.  These changes are intended to further reduce
the cost of electricity to customers, to make the market increasingly more
attractive for independent power suppliers to sell electricity directly to
consumers, and to reduce cost deferrals associated with the pricing of
standard offer service.

      No gain was recorded on the sale of the generating assets on a consoli-
dated basis as COM/Energy is obligated to reduce Cambridge Electric's and
Commonwealth Electric's transition costs by the net proceeds of the sale.

      (b) Unbundled Rates

      As a result of electric industry restructuring, both Commonwealth
Electric and Cambridge Electric have unbundled their rates, provided customers
with a 10 percent rate reduction as of March 1, 1998 and have afforded custom-
ers the opportunity to purchase generation supply in the competitive market.
Unbundled delivery rates are composed of a customer charge (to collect
metering and billing costs), a distribution charge (to collect the costs of
delivering electricity), a transition charge (to collect past costs for
investments in generating plants and costs related to power contracts), a
transmission charge (to collect the cost of moving the electricity over high
voltage lines from a generating plant), an energy conservation charge (to
collect costs for demand-side management programs) and a renewable energy
charge (to collect the cost to support the development and promotion of
renewable energy projects).  Electricity supply services provided by
COM/Energy include optional standard offer service and default service.
<PAGE>
<PAGE 12>

                           COMMONWEALTH ENERGY SYSTEM

Standard offer service is the electricity that is supplied by the local
distribution company (such as Cambridge Electric and Commonwealth Electric)
until a competitive power supplier is chosen by the customer.  It is designed
as a seven-year transitional service to give the customer time to learn about
competitive power suppliers.  The price of standard offer service will
increase over time.  Default service is supplied by the local distribution
company when a customer is not receiving power from either standard offer
service or a competitive power supplier.  The market price for default service
will fluctuate based on the average market price for power.  Amounts collected
through these various charges will be reconciled to actual expenditures on an
on-going basis.

      Prior to the implementation of industry restructuring on March 1, 1998,
Commonwealth Electric and Cambridge Electric had Fuel Charge rate schedules
that generally allowed for current recovery, from retail customers, of fuel
used in electric production, purchased power and transmission costs.  These
schedules required a quarterly computation and DTE approval of a Fuel Charge
decimal based upon forecasts of fuel, purchased power, transmission costs and
billed unit sales for each period.  To the extent that collections under the
rate schedules did not match actual costs for that period, an appropriate
adjustment was reflected in the calculation of the next subsequent calendar
quarter decimal.  These rate schedules are no longer in effect.

      Also prior to March 1, 1998, Cambridge Electric and Commonwealth Elec-
tric collected a portion of capacity-related purchased power costs associated
with certain long-term power arrangements through base rates.  The recovery
mechanism for these costs used a per kwh factor that was calculated using
historical (test-period) capacity costs and unit sales.  This factor was then
applied to current monthly kwh sales.  When current period capacity costs
and/or unit sales varied from test-period levels, Cambridge Electric and
Commonwealth Electric experienced a revenue excess or shortfall that had a
significant impact on net income.  However, as part of the settlement agree-
ments approved by the DTE in May 1995, Cambridge Electric and Commonwealth
Electric were allowed to defer these costs (within certain limits) which
neutralized their sometimes volatile effect on net income.  Both companies
also had separately stated Conservation Charge rate schedules that allowed for
current recovery, from retail customers, of conservation and load management
costs.  These rate schedules are no longer in effect.

      (c) Retail Choice Pilot Program

      Prior to March 1, 1998, the date retail choice was available for all
customers, Commonwealth Electric had designed a program to allow a limited
number of customers the opportunity to possibly reduce their electric bills
while Commonwealth Electric learned more about real-time pricing and the
administrative requirements associated with open-market competition.  Through
the program, Commonwealth Electric developed internal procedures for billing
and allocating the costs for providing an alternative supply to its retail
customers, and developed methods for educating customers regarding retail
choice.  The program was available to 18 commercial and industrial customers
of Commonwealth Electric that took service under one of Commonwealth
Electric's economic development rates.  This program was discontinued on
February 28, 1998.
<PAGE>
<PAGE 13>

                           COMMONWEALTH ENERGY SYSTEM

      (d) Customer Transition Charge

      In September 1995, the DTE issued a ruling largely approving four rate
tariffs, including a Customer Transition Charge (CTC), that were filed by
Cambridge Electric on March 15, 1995.  The CTC was intended to protect
remaining customers from paying certain stranded costs that were incurred in
the event that Cambridge Electric's largest customers discontinued full
service, yet still remain connected for back-up and other services.  These
costs included long-term power contracts entered into to meet projected energy
requirements, investments in substations, underground and overhead lines and
current and future decommissioning costs associated with nuclear plants.  This
ruling is believed to be the first retail stranded cost charge approved
nationally and follows the DTE's initial restructuring order which endorsed,
in principle, the recovery of stranded costs.

      Through the CTC, Cambridge Electric recovered 75% of net stranded costs
as calculated in its proposal.  Cambridge Electric's other rates include a
Supplemental Service Rate, a Standby Service Rate and a Maintenance Service
Rate each of which were approved with only minor changes.

      Cambridge Electric was an intervenor in an appeal at the Massachusetts
Supreme Judicial Court (SJC) filed by the Massachusetts Institute of
Technology (MIT) involving this DTE decision approving the CTC for the
recovery of stranded investment costs.  By its terms, the CTC was terminated
on March 1, 1998, coincident with the retail access date established by the
Massachusetts Legislature in the Electric Industry Restructuring Act.  On
September 18, 1997, the SJC remanded the CTC matter to the DTE for further
consideration.  The SJC stated that, although recovery of prudent and
verifiable stranded costs by utility companies is in the public interest and
consistent with the Public Utility Regulatory Policies Act, the
insufficiencies of the DTE's subsidiary findings precluded the SJC from
undertaking a meaningful review of the DTE's calculations that formed the
basis of the CTC.  The DTE is in the process of determining whether to hear
additional evidence in the remand or to rely on the record and pleadings
already filed.

      (e) Wholesale Rate Proceedings

      The Town of Belmont Massachusetts Municipal Light Department (Belmont)
is a municipally-owned utility that provides electric service to approximately
25,000 residential customers as well as commercial customers.  Belmont
purchases approximately 80 percent of its electric requirements from Cambridge
Electric under a Net Requirements Power Supply Agreement (NRA).  The balance
of its electric requirements are currently purchased from the New York Power
Authority (NYPA) and Boston Edison Company and transmitted to Belmont under a
Transmission Services Agreement with Cambridge Electric.

         Net Requirements Power Supply Agreement

      Cambridge Electric has provided electric service to Belmont for nearly
a century.  Historically, Belmont was a full-requirements customer of
Cambridge Electric, purchasing a "bundled" power supply and transmission
service.  In 1985, however, when Belmont received an allocation of
approximately two megawatts of low-cost "preference" power from NYPA,
Cambridge Electric agreed to provide transmission service for Belmont's NYPA
<PAGE>
<PAGE 14>

                           COMMONWEALTH ENERGY SYSTEM

power under its firm transmission tariff, and to provide "bundled" power
supply and transmission service for the remainder of Belmont's power needs
under a "partial requirements" tariff.

      On March 8, 1993, Cambridge Electric filed, with the concurrence of
Belmont, the NRA which was approved by FERC's June 18, 1993 letter order.

      Prior to approving the NRA however, FERC Staff advised Cambridge
Electric that the cost-of-service formula in the NRA needed to be clarified
and that Cambridge Electric should file such clarification at least sixty days
prior to the April 1, 1998 date upon which the formula rate would become
applicable under the NRA.  In compliance with this requirement, on January 21,
1998, Cambridge Electric submitted a supplemental filing containing the
clarification to the formula rate set forth in the NRA.  On February 19, 1998,
Belmont filed with the FERC a protest claiming that Cambridge Electric's
November 1997 announcement of its intention to leave the power supply business
would have profound implications for Belmont as they were served from
Cambridge Electric's general mix of electric power and that the divestiture
will result in unjust and unreasonable charges.

      On March 30, 1998, the FERC issued its order approving Cambridge
Electric's filing to become effective April 1, 1998 subject to the outcome of
the pending proceeding.

      On April 29, 1998 Belmont filed a request for rehearing alleging the
FERC erred in its March 30 Order by accepting Cambridge Electric's proposed
modifications to the NRA without hearing or suspension, and without requiring
that Cambridge Electric explain the basis for its deletion of certain
protective standards.  On May 29, 1998, the FERC issued its order denying
rehearing.

      Subsequently, Cambridge Electric and Belmont entered into negotiations
to settle certain outstanding issues.  An amendment to the Order has been
signed by both parties and a joint offer of settlement (Joint Offer) was filed
January 15, 1999.  Cambridge Electric awaits FERC action on the Joint Offer.

         Transmission Services Agreement

      Cambridge Electric and Belmont entered into discussions in early 1993
to negotiate a transmission services agreement (TSA).  However, there were
significant differences between the parties and final negotiations were held
in late February 1994.

      As Cambridge Electric and Belmont were unable to agree on the terms of
a TSA, Cambridge Electric filed a proposed TSA with the FERC on June 29, 1994. 
Belmont intervened in the proceeding.  The FERC set the TSA for hearing to
determine whether or not it was consistent with a previous memorandum of
understanding (MOU) and whether the transmission rates were just and
reasonable.  Cambridge Electric and Belmont settled on the rate of return
before hearings started.
<PAGE>
<PAGE 15>

                           COMMONWEALTH ENERGY SYSTEM

      After the hearing and filing of initial and reply briefs, on September
14, 1995, the presiding administrative law judge (ALJ) issued an initial
decision.

      The ALJ found that: (i) the proposed transmission agreement rates were
not just and reasonable and directed Cambridge Electric to revise the rates
based on directly assigned facilities and further that use rights should be
based on the same direct assigned facilities; (ii) the proposed transmission
agreement, revised in accordance with the findings made in the decision, are
consistent with the parties' MOU and; (iii) that Cambridge Electric's pre-
existing firm transmission tariff rate is just and reasonable.

      On October 16, 1995, Belmont filed a motion for expedited review and
issuance of decision.  On July 2, 1998, Belmont renewed its motion for
issuance of a decision.  On July 20, 1998, the FERC issued its opinion and
order and affirmed certain parts and reversed other parts of the initial
decision.

      On August 19, 1998, both Cambridge Electric and Belmont filed requests
for rehearing of the July 20, 1998 order each citing issues on which they felt
the FERC had erred.

      On November 4, 1998, the FERC issued its opinion and order by granting
a rehearing for certain issues and denying a rehearing for others.

      In the order on rehearing the FERC granted Cambridge Electric's
rehearing request on the limited rate issue regarding the method for
allocating certain costs.  The rehearing order resulted in Cambridge Electric
being able to increase its transmission rate to Belmont.  In addition to
Cambridge Electric receiving increased transmission revenues in the future,
the decision substantially reduced Cambridge Electric's refund obligation to
Belmont.  The FERC's rehearing order denied all of Belmont's rehearing
requests including when Belmont has the ability to purchase rights of use from
Cambridge Electric.

      The Order obligated Cambridge Electric to make a compliance filing to
include the necessary revisions to the TSA.  Once the FERC approved and
accepted the compliance filing, Cambridge Electric would have 30 days to make
refunds to Belmont, with interest, back to the refund effective date of
January 29, 1995.

      On December 4, 1998, Cambridge Electric made its compliance filing.  On
December 28, 1998, Belmont filed its protest claiming Cambridge Electric's
compliance filing contains proposed revisions to the TSA which were not
directed by the FERC and therefore should be rejected.

      On January 4, 1999, Belmont filed with the United States Court of
Appeals for the District of Columbia Circuit a petition for review of the July
20, 1998 and November 4, 1998 FERC orders.

      On January 12, 1999, Cambridge Electric filed its response to Belmont's
December 28, 1998 protest.  Cambridge Electric awaits FERC action on Belmont's
protest.
<PAGE>
<PAGE 16>

                           COMMONWEALTH ENERGY SYSTEM

      (f) Transmission Rate Matters

      On March 29, 1995, the FERC issued two notices of proposed rulemaking
concerning open access transmission and stranded costs.  The FERC's notices
proposed to remove impediments to competition in the wholesale bulk power
marketplace and to bring more efficient, lower-cost power to electric
consumers.  On March 29, 1996, Cambridge Electric filed transmission tariffs
that implemented the FERC's requirements for non-discriminatory open access
transmission for both point-to-point and network service.  The tariffs were
accepted on May 17, 1996 to be effective on May 28, 1996, but the rates are
subject to an investigation initiated by the FERC itself.  A settlement with
the FERC regarding this investigation was filed on February 6, 1997.

      On April 24, 1996, the FERC issued Order No. 888, a set of three inter-
related rules resolving the above rulemakings.  The FERC required all public
utilities that own, control or operate transmission facilities in interstate
commerce to have on file wholesale Open Access Transmission Tariffs (OATTs)
that conform to the FERC pro-forma tariff contained in Order No. 888.  On July
9, 1996, Cambridge Electric and Commonwealth Electric filed OATTs that conform
to the FERC's pro-forma tariffs.  On November 13, 1996, the FERC accepted the
non-rate terms and conditions of these tariffs effective July 9, 1996, subject
to a revision of one section dealing with the scheduling of services.

      On January 21, 1997, Cambridge Electric and Commonwealth Electric filed
revised OATTs to be consistent with the recently filed NEPOOL OATT. On March
4, 1997, the FERC issued Order No. 888-A which required revisions to the
tariffs filed in compliance with Order No. 888.  Cambridge Electric and
Commonwealth Electric filed their revised OATTs on July 14, 1997.  On July 31,
1997, the FERC issued an order on the July 9, 1996 filings, approving the
rates, pending the outcome of any outstanding proceedings.  On November 25,
1997, the FERC issued Order No. 888-B requiring minor changes that did not
require an additional filing.

      On July 31, 1998, Cambridge Electric filed a Settlement Agreement at
FERC on regarding the outstanding proceeding referred to in the Order. On
September 31, 1998, following the filing of ISO - New England's revised OATT,
Cambridge Electric and Commonwealth Electric filed revised OATTs for
consistency with ISO - New England. On January 28, 1999. FERC approved the
July 31, 1998 Settlement Agreement which applied to Cambridge Electric's July
9, 1996 OATT.

      Currently, Cambridge Electric and Commonwealth Electric are awaiting
decisions by FERC on the OATTs filed after 1996.

Gas Industry

      (a) Industry Restructuring

      Commonwealth Gas and eight other gas utilities initiated the Massachu-
setts Gas Unbundling Collaborative (the Collaborative) on September 15, 1997,
to explore and develop generic principles to achieve the goals set forth by
the DTE.  Collaborative participants represented a broad array of stakeholder
interests including the utilities, natural gas marketers, interstate pipe-
lines, producers, energy consultants, labor unions, consumer advocates and
representatives for the DTE, the Massachusetts Attorney General's Office, and
<PAGE>
<PAGE 17>

                           COMMONWEALTH ENERGY SYSTEM

the Massachusetts Division of Energy Resources.

      On March 18, 1998, the Collaborative filed a report to the DTE that
summarized its progress.  The Collaborative reported that it had made substan-
tial progress in the areas of rate unbundling and terms and conditions for
unbundled services.  The report also described at least two policy issues,
capacity disposition and cost responsibility, on which the Collaborative's
participants require specific regulatory guidance before completing a compre-
hensive framework for the transition to a more competitive market structure. 
In response to this report, the DTE issued a Notice of Inquiry (NOI) to
address the Collaborative's unresolved issues.  On May 1, 1998, Commonwealth
Gas filed initial written comments in the proceeding arguing in favor of a
mandatory capacity assignment proposal.  On June 8, 1998, the DTE, as part of
the aforementioned NOI, received final comments regarding the feasibility of
implementing comprehensive unbundling for all local distribution companies
(LDCs) by November 1, 1998.  On June 29, 1998, Commonwealth Gas and three
other Massachusetts LDCs submitted unbundled rate settlements to the DTE for
consideration.

      The DTE issued a procedural order regarding the NOI on July 2, 1998
which stated that the introduction of comprehensive unbundling for all classes
of customers for all LDCs is not feasible by November 1, 1998.  The DTE stated
that unbundled rates for the four LDCs that filed settlements on June 29, 1998
(including Commonwealth Gas) shall be in place by November 1, 1998 and that
comprehensive unbundling shall be implemented no later than April 1, 1999. 
Also, as part of the July 2, 1998 procedural order, the DTE ordered that a set
of proposed Model Terms and Conditions be submitted by the Collaborative no
later than July 15, 1998.  A partial set of Model Terms and Conditions were
submitted on July 10, 1998 that excluded provisions for capacity assignment as
well as those related sections of the terms and conditions that required
further development by the Collaborative once the issues being addressed in
the NOI were resolved by the DTE.

      On August 15, 1998, the DTE approved the unbundled rate settlement
submitted by Commonwealth Gas.  Commonwealth Gas submitted compliance rates
consistent with the settlement agreement on September 11, 1998, and unbundled
rates became effective on November 1, 1998.

      On November 30, 1998 the DTE issued an order approving the partial set
of Model Terms and Conditions that were submitted by the Collaborative on July
10, 1998. In response to that order, however, the ten gas companies partici-
pating in the Collaborative informed the DTE that an April 1, 1999 implementa-
tion date for comprehensive gas unbundling was no longer feasible due to the
significant time required by the Collaborative to complete the Model Terms and
Conditions once the unresolved issues in the aforementioned NOI were answered
by the DTE, as well as the additional time required by the gas companies to
develop the systems necessary to implement unbundling consistent with these
provisions.

      On February 1, 1999, the DTE issued an order in the NOI with regard to
capacity assignment and cost responsibility.  The DTE found in favor of
mandatory capacity assignment, where gas marketers would be required to accept
the full cost and contractual obligations of the capacity that the gas
companies had historically procured to serve their common customers.  In
support of its decision, the DTE determined that the capacity market in
<PAGE>
<PAGE 18>

                           COMMONWEALTH ENERGY SYSTEM

Massachusetts was not yet workably competitive to allow it to remove tradi-
tional regulatory controls that were designed to ensure the reliability of gas
service to customers.  The DTE further reaffirmed that the LDCs must continue
with their obligation to plan for and procure sufficient upstream capacity. 
Finally, the DTE found that alternative approaches to mandatory capacity
assignment would result in transition costs that would conflict with the
well-established policy on cost allocation.

      On February 17, 1999, the Collaborative reconvened to continue its work
in completing the Model Terms and Conditions consistent with the DTE's order
on capacity assignment with a goal to begin the implementation of comprehen-
sive unbundling for all LDCs beginning in 1999.

      (b) Unbundled Rates

      New unbundled rates for Commonwealth Gas went into effect on November
1, 1998.  The unbundled rates were developed in accordance with a Settlement
Agreement reached by participants in the Massachusetts Gas Unbundling
Collaborative (MGUC) that was filed with the Massachusetts Department of
Telecommunications and Energy on June 29, 1998 and approved on August 15,
1998.  The new unbundled rates reflect the separation of the Company's gas
supply function from its local distribution function.

      Commencing with the billing month of November 1998, Commonwealth Gas
has a Seasonal Cost of Gas Adjustment Clause (CGAC) and a Local Distribution
Adjustment Clause (LDAC) that provide for the recovery, from firm customers or
Default Service customers, of certain costs previously recovered through base
rates.  The CGAC provides for rates that must be approved semi-annually by the
DTE.  The LDAC provides for rates that require annual approval.

      As part of its new unbundled rates, Commonwealth Gas modified its
existing CGAC to allow for the following changes: (a) the addition of
provisions that allow for the recovery of certain bad-debt expenses; (b) new
formulas that no longer adjust the Gas Adjustment Factors for the seasonal
embedded gas costs that were in existing sales rates; (c) updated language
reflecting the ratemaking requirements for non-core revenue margins; and (d)
the removal of provisions for the recovery of environmental remediation costs
and FERC Order 636 transition costs, which will instead be recovered through
the LDAC.

      Commonwealth Gas' new LDAC recovers conservation charges, environmental
remediation costs, balancing penalty revenue credits, and costs associated
with the its participation in the MGUC.

Competition

      COM/Energy continues to develop and implement strategies that deal with
the restructured utility industry.  The planned merger with BEC Energy, the
sale of substantially all its non-nuclear generating assets and the purchase
of MATEP are actions that are indicative of COM/Energy's commitment to seeking
competitive advantages and other benefits by taking advantage of its
strengths.  For a more detailed discussion of the pending merger with BEC
Energy, refer to the "Merger with BEC Energy" section of Management's
Discussion and Analysis of Financial Condition and Results of Operations filed
under Item 7 of this report.  For additional information concerning the
<PAGE>
<PAGE 19>

                           COMMONWEALTH ENERGY SYSTEM

purchase of MATEP, refer to Note 3(e) of Notes to Consolidated Financial
Statements filed under Item 8 of this report.

      On February 6, 1997, due to the dramatically changing nature of the
electric and gas industries, COM/Energy announced the consolidation of
management personnel of Commonwealth Electric, Commonwealth Gas and COM/Energy
Services Company effective on that date.  The companies continue to operate
under their existing company names.  The consolidation process for these
companies involved the merging of similar functions and activities to
eliminate duplication in order to create the most efficient and cost-effective
operation possible.  In addition, COM/Energy initiated a voluntary personnel
reduction program during the second quarter of 1997 which reduced the total
number of regular employees by approximately 13%.  COM/Energy has reduced its
full-time work force approximately 37% since 1990.  Also, the introduction of
advanced technologies in the workplace continues to improve customer service
and COM/Energy's competitive position.

Segment Information

      COM/Energy companies provide electric, gas and steam services to retail
customers in service territories located in central, eastern and southeastern 
Massachusetts and, in addition, sell electricity at wholesale to Massachusetts
customers and own and operate a cogeneration plant that provides the Longwood
Medical Area of Boston with heating, chilled water service and electricity. 
Other operations of COM/Energy include the pursuit of new business
opportunities and the operation of rental properties and other investment
activities which do not presently contribute significantly to either revenues
or operating income.

      Reference is made to additional industry segment information in Note 11
of Notes to Consolidated Financial Statements filed under Item 8 of this re-
port.

Environmental Matters

      COM/Energy is subject to laws and regulations administered by federal,
state and local authorities relating to the quality of the environment. 
COM/Energy's compliance with these laws and regulations will require capital
expenditures of $585,000 from 1999 through 2003 for the electric and gas
divisions.

      For additional information concerning environmental issues, refer to
the "Environmental Matters" section of "Management's Discussion and Analysis
of Financial Condition and Results of Operations" filed under Item 7 of this
report.

Construction and Financing

      For information concerning COM/Energy's financing and construction
programs refer to Management's Discussion and Analysis of Financial Condition
and Results of Operations filed under Item 7 and Note 3(a) of the Notes to
Consolidated Financial Statements filed under Item 8 of this report.
<PAGE>
<PAGE 20>

                           COMMONWEALTH ENERGY SYSTEM

Employees

      The total number of full-time employees for COM/Energy declined by
approximately 5% to 1,638 in 1998 from 1,727 employees at year-end 1997.  Of
the current total, 1,029 (63%) are represented by various collective
bargaining units covered by separate contracts with expiration dates ranging
from March 2001 through April 2003.  Although a labor dispute with one
collective bargaining unit occurred during 1996, employee relations have
generally been satisfactory since the dispute was resolved in September 1996.

Item 2.     Properties

      Substantially all of COM/Energy's non-nuclear generating assets were
sold on December 30, 1998.  COM/Energy, through its Canal Electric subsidiary,
retained its 3.52% interest (40.5 MW of capacity) in Seabrook 1 and a steam
electric generating unit, Blackstone Station in Cambridge, MA with a
capability of 15.3 MW, is still owned and operated by Cambridge Electric.

      Prior to the sale, COM/Energy's principal electric properties consisted
of Canal Unit 1, a 569 MW oil-fired steam electric generating unit, and its
one-half ownership in Canal Unit 2, a 580 MW steam electric generating unit
with the ability to burn both oil and natural gas, both located in Sandwich,
Massachusetts.  Additionally, Cambridge Electric owned and operated a steam
electric generating station and two gas turbine units located in Cambridge,
Massachusetts with a total capability of 100 MW and Commonwealth Electric had
an interest in smaller generating units totaling 13.8 MW and a 1.4% (8.8 MW)
joint-ownership interest in Central Maine Power Company's Wyman Unit 4.

      Other electric properties include an integrated system of distribution
lines and substations.  In addition, COM/Energy's other principal properties
consist of an electric division office building in Wareham, Massachusetts and
other structures such as garages and service buildings.

      At December 31, 1998, the electric transmission and distribution system
consisted of 5,861 pole miles of overhead lines, 4,540 cable miles of
underground line, 385 substations and 386,241 active customer meters.

      The principal natural gas properties consist of distribution mains,
services and meters necessary to maintain reliable service to customers.  At
December 31, 1998, the gas system included 2,826 miles of gas distribution
lines, 168,188 services and 247,560 customer meters together with the
necessary measuring and regulating equipment.  In addition, COM/Energy owns a
liquefaction and vaporization plant, a satellite vaporization plant and above-
ground cryogenic storage tanks having an aggregate storage capacity equivalent
to 3.5 million MCF of natural gas.  COM/Energy's gas division owns a central
headquarters and service building in Southborough, Massachusetts, five
district office buildings and several natural gas receiving and take stations.
<PAGE>
<PAGE 21>

                           COMMONWEALTH ENERGY SYSTEM

Item 3.     Legal Proceedings

      Cambridge Electric is an intervenor in an appeal at the Massachusetts
Supreme Judicial Court (SJC) filed by MIT of a decision by the DTE approving a
customer transition charge that allows Cambridge Electric to recover certain
stranded costs.  For additional information refer to the "Customer Transition
Charge" section in Item 1 of this report.


Item 4.     Submission of Matters to a Vote of Security Holders

            None
<PAGE>
<PAGE 22>


                           COMMONWEALTH ENERGY SYSTEM

                                    PART II.

Item 5. Market for the Registrant's Securities and Related Stockholder
        Matters

    (a) Principal Markets

        The Parent's common shares are listed on the New York and Pacific
        stock exchanges.  The table below sets forth the high and low closing
        prices as reported on the New York Stock Exchange composite
        transactions tape.

                                 1998 by Quarter           
                      First      Second     Third     Fourth
            High      $40        $40 13/16  $37 3/4   $40 1/2
            Low        30 15/16   34 5/8     29 1/8    31 11/16

                                 1997 by Quarter           
                      First      Second     Third     Fourth
            High      $24 1/2    $24        $27       $34 9/16
            Low        20 7/8     19         23 3/4    25 11/16

    (b)  Number of Shareholders at December 31, 1998

         11,839 shareholders

    (c)  Frequency and Amount of Dividends Declared in 1998 and 1997

                    1998                              1997            
                               Per                               Per
                              Share                             Share
         Declaration Date    Amount        Declaration Date    Amount
         March 26, 1998      $ .405        March 27, 1997      $ .395
         June 25, 1998         .405        June 26, 1997         .395
         September 24, 1998    .405        September 25, 1997    .395
         December 17, 1998     .405        December 18, 1997     .395
                             $1.620                            $1.580

    (d)  Future dividends may vary depending upon the Parent's earnings and
         capital requirements as well as financial and other conditions
         existing at that time.








<PAGE>
<PAGE 23>


                           COMMONWEALTH ENERGY SYSTEM

Item 6.  Selected Financial Data



                        1998       1997         1996       1995       1994
                         (Dollars in thousands except common share data)

Operating Revenues
   Electric          $  636,563  $  688,508  $  649,678 $  604,980  $  638,150
   Gas                  306,099     333,977     341,867    306,953     323,568
   Steam and other       37,453      19,259      19,360     17,355      15,867
   Total             $  980,115  $1,041,744  $1,010,905 $  929,288  $  977,585

Net Income           $   54,404  $   49,901  $   59,175 $   51,396  $   48,968

Common Share Data-
 Earnings per share       $2.48       $2.27       $2.70      $2.36       $2.29
 Dividends declared
   per share              $1.62       $1.58       $1.54      $1.50       $1.50
 Average shares
    outstanding      21,534,042  21,531,433  21,529,676 21,311,836  20,827,562

Total Assets         $1,762,888  $1,485,050  $1,428,955 $1,392,342  $1,345,032

Long-term debt       $  385,602  $  364,311  $  355,305 $  377,181  $  418,307
Redeemable preferred
  shares                 11,380      12,200      13,020     13,840      14,660
Common share
  investment            449,592     430,770     415,694    390,785     362,997
Total Capitalization $  846,574  $  807,281  $  784,019 $  781,806  $  795,964



                                              1998 by Quarter
                                  1st         2nd        3rd        4th
                             (Dollars in thousands except per share amounts)

Operating Revenues                $276,604   $204,291   $233,606   $265,614
Operating Income                    35,054     11,546     15,959     26,301
Income Before Interest Charges      35,749     12,350     28,853     24,361
Net Income                          25,559      1,065     16,070     11,710
Earnings per Common Share             1.18        .03        .74        .53
Dividends Declared per
   Common Share                       .405       .405       .405       .405
Closing Price of Common Shares-
   High                           40         40 13/16     37 3/4   40 1/2  
   Low                            30 15/16   34 5/8       29 1/8   31 11/16



                                                1997 by Quarter
                                     1st        2nd        3rd        4th
                             (Dollars in thousands except per share amounts)

Operating Revenues                $316,190   $221,944   $222,115   $281,495
Operating Income                    35,892      7,793     16,887     27,078
Income Before Interest Charges      36,541      8,774     17,227     27,709
Net Income (Loss)                   26,400     (1,334)     7,147     17,688
Earnings per Common Share             1.21       (.07)       .32        .81
Dividends Declared per
   Common Share                       .395       .395       .395       .395
Closing Price of Common Shares-
   High                             24 1/2     24         27       34  9/16
   Low                              20 7/8     19         23 3/4   25 11/16

<PAGE>
<PAGE 24>

                           COMMONWEALTH ENERGY SYSTEM

Item 7.   Management's Discussion and Analysis of Financial Condition
          and Results of Operations

Results of Operations

    Earnings and Dividends

    Earnings and earnings per common share by organizational element for the
three-year period were as follows:
                             1998               1997              1996    
                                   Per                Per              Per
                       Amount     Share    Amount    Share   Amount   Share
                        (Dollars in thousands except per share amounts)

Electric...........    $34,234    $1.59    $34,811   $1.62   $39,667  $1.85
Gas................     12,214      .57     14,681     .68    16,229    .75
Other..............      7,026      .32       (579)   (.03)    2,229    .10
    Total..........    $53,474    $2.48    $48,913   $2.27   $58,125  $2.70

    Parent company earnings and dividends on preferred shares were
allocated among the electric, gas and other operations of COM/Energy
based on the Parent's equity investment in each segment.

    1998 versus 1997

    Earnings per share for the year 1998 were $2.48 compared to the $2.27
achieved in 1997 and include a one-time gain of 50 cents per share from the
sale of real estate.  Earnings for 1997 include a one-time after-tax charge of
50 cents per share that related to a voluntary Personnel Reduction Program
(PRP).  Excluding these one-time items, the decline in earnings for the year
was due to an increase in other operation expense (19 cents) reflecting costs
associated with outsourcing the information technology, telecommunications and
network services function (including costs related to Year 2000 compliance)
net of PRP savings.  Other factors that negatively impacted earnings were a
17% decline in firm gas sales (27 cents), a revenue shortfall related to
demand-side management activity (25 cents), higher interest costs (10 cents),
costs associated with new business development (4 cents) and costs related to
supporting the industry restructuring referendum question on the November 1998
ballot (2 cents).  Factors that had a positive impact on earnings were the
labor savings realized from the PRP, a decline in the provision for bad debts  
(6 cents) and an increase in retail electric sales (2 cents).

    1997 versus 1996

    Earnings per share for the year 1997 were $2.27 compared to the record
level of $2.70 achieved in 1996.  Excluding the aforementioned PRP, factors
that had a positive impact on earnings for the year were lower operating and
maintenance expenses (25 cents) that resulted, in part, from the PRP, an
increase in electric unit sales (11 cents) and the absence in 1997 of costs
associated with a labor dispute in 1996 (13 cents).  Earnings for 1997 were
negatively affected by the absence of a 1996 refund associated with a power
contract settlement agreement (11 cents), lower firm gas unit sales (8 cents),
costs associated with new business development (12 cents), the absence of a
1996 recognition of the recoverability of costs associated with Canal Electric
Company's postretirement benefits costs that were subsequently recovered in
<PAGE>
<PAGE 25>

                           COMMONWEALTH ENERGY SYSTEM

wholesale rates (5 cents) and a lower investment base on generation assets  
(6 cents).

    In March 1998, the Parent's Board of Trustees increased the quarterly
dividend rate per share 2.5% from 39 1/2 cents to 40 1/2 cents ($1.62 on an
annualized basis).  This was the third consecutive year and the fourth time in
five years that the Board had voted to increase the quarterly dividend rate. 
Dividends paid to common shareholders in 1998 were $34.9 million, representing
a payout ratio of 65% of 1998 earnings per share.

    Electric Operations

    Operating revenues from regulated operations for 1998 were $75.7 million
(11%) lower than in 1997 due primarily to a 10 percent rate reduction (further
discussed below) and decreases in electricity purchased for resale and fuel
charges ($58.8 million).  The decline in these costs reflects a cost deferral
of $42.5 million in conjunction with COM/Energy's restructuring plan as
approved by the Massachusetts Department of Telecommunications and Energy
(DTE).  As a result of electric industry restructuring, COM/Energy has unbun-
dled its rates, provided customers with a 10 percent rate reduction as of
March 1, 1998 and has afforded customers the opportunity to purchase genera-
tion supply in the competitive market.  Delivery rates are composed of a
customer charge (to collect metering and billing costs), a distribution
charge, a transition charge (to collect stranded costs), a transmission
charge, an energy conservation charge (to collect costs for demand-side
management programs) and a renewable energy charge.  Electricity supply
services provided by COM/Energy include optional standard offer service and
default service.  Amounts collected through these various charges will be
reconciled to actual expenditures on an on-going basis.  For additional
information concerning electric industry restructuring, refer to the Rates,
Regulation and Legislation section filed under Item 1 of this report. 
Operating revenues from two non-regulated subsidiaries increased $23.8
million.

    Electric operating revenues from regulated operations for 1997 increased
$38.8 million (6%) due to greater wholesale sales reflecting the changing
capacity needs of non-affiliated utilities ($11.7 million) and the Independent
System Operator (ISO) - New England (the agency that operates a centralized
facility to ensure reliability of service and dispatch of economically
available generating units throughout New England) ($11 million) and higher
retail unit sales ($2.4 million).  Offsetting these factors was the absence of
a $4 million refund associated with a 1996 power contract settlement agreement
and lower revenues ($2.1 million) due to the return allowed on Canal
Electric's declining investment base.

    Unit sales (in Megawatthours or MWH) were as follows:
                                           %                   %
                                1998     Change      1997    Change      1996  

    Residential..........    1,814,258    (0.9)   1,830,793    1.5    1,802,973
    Commercial...........    2,560,433     2.2    2,506,215    3.1    2,430,188
    Industrial and other.      458,877    (0.5)     459,104    2.1      449,844
        Total retail.....    4,833,568     0.8    4,796,112    2.4    4,683,005
    Wholesale............    4,030,454     2.9    3,916,974   43.9    2,721,623
        Total............    8,864,022     1.7    8,713,086   17.7    7,404,628
<PAGE>
<PAGE 26>

                           COMMONWEALTH ENERGY SYSTEM

    In 1998 and 1997, retail unit sales increased due to strong commercial
sector sales and approximately 5,700 (1.5%) and 4,200 (1.2%) additional
customers, respectively, most of which are permanent year-round residential
and commercial customers.  In 1998, the increase in the level of wholesale
sales primarily reflected increased sales to non-associated utilities, and to
a lesser extent, increased sales to the Town of Belmont and to ISO - New
England.  The change in wholesale sales in 1997 reflected the increased
availability of Canal Unit 1 and greater sales to ISO - New England.  The
changes in wholesale unit sales have little, if any, impact on net income.

    The $38.1 million increase (10.7%) in fuel and purchased power costs in
1997 was due primarily to higher wholesale unit sales and higher costs for
replacement power due to the shutdown for repairs of both Connecticut Yankee
and Maine Yankee in mid- and late-1996, respectively.  These units remained
out of service until their permanent shutdown in December 1996 and August
1997, respectively.

    Gas Operations

    Operating revenues from regulated operations decreased $41.9 million
(12.7%) during 1998 due primarily to the considerable decline in firm unit
sales.  Operating revenues from an unregulated subsidiary increased $14.1
million.  Also affecting revenues in both periods was a lower average cost of
gas.

    In 1997, operating revenues from regulated operations decreased $11
million (3.2%) primarily due to a 5.6% decline in firm unit sales ($11.1
million) and lower conservation and load management (C&LM) costs ($1.8
million), offset by an increase in transportation revenues of $1.8 million and
revenues from sales of gas to third parties of $3.9 million.  Operating
revenues from an unregulated subsidiary increased $3.1 million.

    Unit sales and transportation volume (in billions of British thermal
units or BBTU) were as follows:
                                           %                  %
                                 1998    Change     1997    Change    1996  

    Residential.........        19,514   (11.5)     22,043   (3.1)    22,759
    Commercial..........         8,965   (19.1)     11,077   (4.2)    11,558
    Industrial and other         3,524   (37.0)      5,594  (16.2)     6,676
        Total firm.......       32,003   (17.3)     38,714   (5.6)    40,993
    Off-system..........         4,429    65.7       2,673   10.5      2,420
    Interruptible and other      1,658   (14.2)      1,933  (34.5)     2,949
        Total sales......       38,090   (12.1)     43,320   (6.6)    46,362
    Transportation......         9,230    41.9       6,506   34.1      4,852
        Total............       47,320    (5.0)     49,826   (2.7)    51,214

    The decrease in unit sales to firm customers in 1998 reflects the impact
of the milder weather conditions experienced during the year on all customer
segments.  The fluctuation in interruptible and other sales reflects the
competitive market that exists today in the natural gas industry.  A portion
of the margin realized on these sales reduced the cost of gas sold to firm
customers.  Degree days for the current year totaled 5,754, 11% lower than
last year and 12.1% below the normal level of 6,541.
<PAGE>
<PAGE 27>

                           COMMONWEALTH ENERGY SYSTEM

    The decline in firm unit sales in 1997 was due to decreases to all
customer segments that reflected milder weather experienced in the region
during the first quarter as compared to a colder period in 1996.  Degree days
for 1997 totaled 6,463, 3.6% lower than 1996 and 1.2% below normal.

    Other Operating Expenses

    In 1998, other operation increased $9.8 million (4.3%), despite reflecting
the absence of a one-time charge ($17.7 million) related to the aforementioned
PRP, due to higher costs related to the outsourcing of the information tech-
nology, telecommunications and network services function ($13.3 million) that
includes costs associated with Year 2000 compliance, costs associated with new
business development ($13.3 million), increased C&LM costs ($5 million) and
higher costs associated with real estate operations ($1.3 million).  These
increases were offset, in part, by a decline in insurance and employee
benefits costs ($1.1 million) and labor savings from the PRP, the absence of
storm damage costs related to an April 1997 blizzard ($2 million) and a
decline in the provision for bad debts ($2.1 million).

    Other operation in 1997 increased $10.3 million (4.8%) due to a one-time
charge related to the aforementioned PRP, costs associated with new business
development ($3.6 million), and an increase in the provision for bad debts
($1.4 million) that reflected higher reserve requirements.  The impact of
these factors was offset, in part, by lower operating costs ($5 million) that
resulted, in part, from the PRP, lower pension costs ($2.7 million) and the
absence of costs related to the 1996 labor dispute ($4.6 million).

    Maintenance increased $3 million (8.2%) in 1998 due to the addition of the
Medical Area Total Energy Plant (MATEP) facility ($1.9 million) and greater
expenses related to Canal Unit 1 boiler plant and related equipment.  In 1997,
maintenance declined $4.1 million (10%) and resulted from a reduction in
transmission and distribution-related projects and, to a lesser extent, the
PRP.

    Depreciation increased $7.6 million (14.2%) during 1998 and reflects the
treatment allowed for certain production plant pursuant to the electric
industry restructuring legislation as well as a higher level of depreciable
plant including the newly acquired MATEP facility.  Depreciation increased
$1.6 million (3.1%) in 1997 due to additions to property, plant and equipment,
that included the costs associated with the conversion of Canal Unit 2 in mid-
1996 to burn natural gas as well as oil.

    Federal and state income taxes decreased $4.8 million (15.4%) during 1998
reflecting the level of pre-tax income related to normal operations.  The tax
impact from the sale of real estate ($6.3 million) was reflected as an offset
to the gain from the sale in Other Income on the Consolidated Statements of
Income.  Federal and state income taxes decreased $4.8 million (13.4%) during
1997 due mainly to the lower level of pre-tax income.

    The increase of $823,000 (2.9%) in local property and other taxes for 1998
was due primarily to real estate taxes associated with MATEP and higher real
estate tax rates and assessments offset, in part, by a decline in payroll
taxes attributable to savings realized from the aforementioned PRP.  Local
property and other taxes were higher during 1997 due to higher property tax
<PAGE>
<PAGE 28>

                           COMMONWEALTH ENERGY SYSTEM

rates and assessments within COM/Energy's service territory and an increase in
payroll-related taxes due to a 1996 labor dispute.

    Other Income

    In 1998, other income increased $9.9 million due to the gain from the
aforementioned sale of real estate ($10.8 million net of taxes).  In 1997,
other income decreased $2 million due primarily to the absence of a 1996
recognition of the recoverability of costs associated with Canal Electric's
postretirement benefits ($1.8 million) following Federal Energy Regulatory
Commission (FERC) approval, and the absence of a gain from the sale of real
estate ($402,000 net of taxes) in 1996.

    Interest Charges

    The $6.6 million (16.3%) increase in total interest charges for 1998
resulted from higher levels of short-term borrowings, the full impact from the
issuance of two series of long-term debt in September 1997 and the issuance of
new long-term debt in the third quarter of 1998, partially offset by maturing
long-term debt and scheduled sinking fund payments.  The $2 million decline in
total interest charges for 1997 was due to maturing long-term debt and
scheduled sinking fund payments partially offset by a slightly higher average
level of short-term borrowings.

Liquidity and Capital Resources

    Financial Condition

    COM/Energy's cash requirements are essentially met through the generation
of cash flows from the sale of electricity, natural gas (including liquefied
natural gas), steam and chilled water.  Cash requirements for current opera-
tions, construction programs, debt service and other capital requirements are
maintained through internal generation and short-term borrowings made avail-
able through COM/Energy's credit lines with banks.  Long-term debt issues are
used to permanently finance short-term debt when deemed appropriate by
management.

    The Parent, through its Advanced Energy Systems, Inc. subsidiary (AES),
purchased the MATEP total energy plant, that was formerly owned and operated
by Harvard University and is located in the Longwood Medical Area of Boston,
and related contracts, for $146.3 million on June 1, 1998.  This acquisition
was ultimately financed with a $40 million equity contribution from the Parent
to AES (financed with a 2-year term note issued by the Parent) and $112.5
million in 23-year term notes at a rate of 6.924% with sinking fund payments
scheduled to begin in 2003.  The notes are secured by long-term contracts
between MATEP and its customers.  This new venture increased revenues by
approximately $34 million in 1998 and it is projected that annual revenues
from this facility will average approximately $60 million in the years 1999
through 2003.

    COM/Energy's 1998 net cash flow from operating activities ($81.9 million)
exceeded funds required to support normal additions to property, plant and
equipment.  The improved cash flow position also reflects proceeds from the
sale of COM/Energy's generating assets and real estate ($466.6 million).  No
gain was recorded on the sale of the generating assets on a consolidated basis
<PAGE>
<PAGE 29>

                           COMMONWEALTH ENERGY SYSTEM

as COM/Energy is obligated to reduce Cambridge Electric's and Commonwealth
Electric's transition costs by the net proceeds of the sale.

    The year's cash requirements for the payment of preferred and common divi-
dends ($35.9 million), the payment of maturing long-term debt and sinking fund
requirements ($102.1 million) and the repayment of short-term borrowings
($92.1 million) were provided from operations and proceeds from the issuance
of long-term debt ($152.5 million) and the sale of assets.  Other information
on the sources and uses of cash for the past three years is included in the
Consolidated Statements of Cash Flows.

    On February 12, 1999, the holders of the Parent's Cumulative Preferred
Shares (Series A 4.80%, Series B 8.10% and Series C 7.75%) were notified that
each series will be redeemed in full effective April 1, 1999.  The redemption
price of $102 for Series A and $101 for each of Series B and C, plus accrued
dividends will be paid upon redemption.


                              Capital Requirements
    -------------------------------------------------------------------
                            Bar graph illustration of
                     comparative two-year (1997-1998) actual
                      and five-year (1999-2003) forecast of
                      capital requirements based on values
                             listed in chart below.
    -------------------------------------------------------------------

                                                  Forecast             
                       1997    1998   1999    2000    2001   2002   2003
                                      (Dollars in millions)
    Construction-
      Electric         $ 35    $ 38   $ 38    $ 38    $ 41   $ 41   $ 44
      Gas                18      19     19      18      19     19     19
      Other               4       3      6      10       5      5      5
    Maturing Debt        23     102     48      27       5     37     20
    Purchase of MATEP    -      146     -       -       -      -      - 
    Retirement of
      Preferred Shares   -       -      11      -       -      -      - 
                       $ 80    $308   $122    $ 93    $ 70   $102   $ 88

    Capital Requirements and Resources

    COM/Energy's projected capital expenditures for the years 1999 through
2003 are $475.8 million, including $122.1 million for 1999 that consists of
$63.4 million for construction expenditures and $58.7 million for maturing
debt, sinking fund payments and the redemption of the preferred shares.  These
1999 expenditures will be met through a combination of long and short-term
debt issues and internally-generated funds.

    COM/Energy's goal is to maintain a capital structure that preserves an
appropriate balance between debt and equity.  Management believes its capital
resources and liquidity are sufficient to meet its current and projected
requirements.
<PAGE>
<PAGE 30>

                           COMMONWEALTH ENERGY SYSTEM

    COM/Energy's capitalization structure is presented below:

                                  1998                    1997      
                                    (Dollars in thousands)

    Long-term debt           $434,602    48.4%       $383,311    41.7%
    Preferred shares           11,380     1.3          12,200     1.3
    Common equity             449,592    50.1         430,770    46.8
    Short-term debt             2,000     0.2          94,075    10.2
    Total capitalization     $897,574   100.0%       $920,356   100.0%

                                 Capitalization
    -------------------------------------------------------------------
                            Bar graph illustration of
                  comparative five-year (1999-2003) forecast of
                    capitalization components based on values
                             listed in chart below.
    -------------------------------------------------------------------

                                         Forecast                       
                    1999        2000         2001         2002        2003
                                     (Dollars in millions)

    Common
      Equity  $  474  45%  $  488  46%  $  509  47%  $  537  49% $  566   51%
    Long-term
      Debt       480  46      454  43      447  42      435  40     540   48
    Short-term
      Debt        92   9      120  11      121  11      114  11       7    1
              $1,046 100%  $1,062 100%  $1,077 100%  $1,086 100% $1,113  100%


    Forward-Looking Statements

    This discussion contains statements which, to the extent it is not a
recitation of historical fact, constitute "forward-looking statements" and is
intended to be subject to the safe harbor protection provided by the Private
Securities Litigation Reform Act of 1995.  A number of important factors
affecting the Parent's business and financial results could cause actual
results to differ materially from those reflected in the forward-looking
statements or projected amounts.  Those factors include developments in the
legislative, regulatory and competitive environment, certain environmental
matters, demands for capital and new business development expenditures and the
availability of cash from various sources.
<PAGE>
<PAGE 31>

                           COMMONWEALTH ENERGY SYSTEM

Merger with BEC Energy

    The electric utility industry has continued to change in response to
legislative and regulatory mandates that are aimed at lowering prices for
energy by creating a more competitive marketplace.  These pressures have
resulted in an increasing trend in the electric industry to seek competitive
advantages and other benefits through business combinations.  On December 5,
1998, the Parent and BEC Energy (BEC), headquartered in Boston, Massachusetts,
entered into an Agreement and Plan of Merger (the Merger Agreement).  Pursuant
to the Merger Agreement, the Parent and BEC will be merged into a new holding
company to be known as NSTAR.  Holders of Parent common shares will receive
1.05 shares of NSTAR common stock for each share held while BEC common
shareholders will receive one share of NSTAR common stock for each share held. 
In addition, current Parent and BEC common shareholders have the right to
receive cash rather than NSTAR common stock in the amount of $44.10 for each
share held, up to an aggregate maximum of $300 million.  At the close of the
merger, Parent shareholders will own approximately 32% of NSTAR common stock
and BEC shareholders will own approximately 68%.  The merger is expected to
occur shortly after the satisfaction of certain conditions, including the
receipt of certain regulatory approvals including that of the DTE.  The
regulatory approval process is expected to be completed during the second half
of 1999.

    The merger will create an energy delivery company serving approximately
1.3 million customers located entirely within Massachusetts, including more
than one million electric customers in 81 communities and 240,000 gas custom-
ers in 51 communities.

    Shareholder votes on the merger will be held as part of each of the
Parent's and BEC's annual shareholder meetings scheduled for the second
quarter of 1999.  The Merger Agreement may be terminated under certain
circumstances, including by any party if the merger is not consummated by
December 5, 1999, subject to an automatic extension of six months if the
requisite regulatory approvals have not yet been obtained by such date.  The
merger will be accounted for using the purchase method of accounting.

    Upon effectiveness of the merger, Thomas J. May, BEC's current Chairman,
President and Chief Executive Officer (CEO), will become the Chairman and CEO
of NSTAR.  Russell D. Wright, the Parent's current President and CEO, will
become the President and Chief Operating Officer of NSTAR and will serve on
NSTAR's board of directors. Also, upon effectiveness of the merger, NSTAR's
board of directors will consist of the Parent's and BEC's current trustees.


    Provisions of Statement of Financial Accounting Standards No. 71

    As described in Note 2(b) of the Notes to Consolidated Financial State-
ments, COM/Energy follows the provisions of Statement of Financial Accounting
Standards (SFAS) No. 71, "Accounting for the Effects of Certain Types of
Regulation."  In the event COM/Energy is somehow unable to meet the criteria
for following SFAS No. 71, the accounting impact would be an extraordinary,
<PAGE>
<PAGE 32>

                           COMMONWEALTH ENERGY SYSTEM

non-cash charge to operations in an amount that could be material.  Conditions
that could give rise to the discontinuance of SFAS No. 71 include: 1) increas-
ing competition restricting COM/Energy's ability to establish prices to
recover specific costs, and 2) a significant change in the current manner in
which rates are set by regulators.  COM/Energy monitors these criteria to
ensure that the continuing application of SFAS No. 71 is appropriate.  Based
on the current evaluation of the various factors and conditions that are
expected to impact future cost recovery, COM/Energy believes that its retail
electric utility operations, excluding generation-related assets, remain
subject to SFAS No. 71 and its regulatory assets, including those related to
electric generation, remain probable of future recovery.

    As a result of electric industry restructuring, COM/Energy's retail
electric companies discontinued application of accounting principles applied
to their investment in electric generation facilities effective March 1, 1998. 
COM/Energy will not be required to write off any of its generation-related
assets, including regulatory assets.  These assets have been retained on the
Consolidated Balance Sheets because the legislation and the DTE's plan for a
restructured electric industry specifically provide for their recovery through
the non-bypassable transition charge.

Year 2000

    The Year 2000 issue is the result of computer programs being written using
two digits rather than four to define the applicable year.  Any computer
program that has date sensitive software may recognize a date using "00" as
the year 1900 rather than the year 2000.  This could result in a temporary
inability to process transactions or engage in normal business activities. 
COM/Energy has been involved in Year 2000 compliancy since 1996.

    COM/Energy, on a coordinated basis and with the assistance of RCG Informa-
tion Technologies and other consultants, is addressing the Year 2000 issue. 
COM/Energy has followed a five-phase process in its Year 2000 compliance
efforts, as follows: Awareness (through a series of internal announcements to
employees and through contacts with vendors); Inventory (all computers,
applications and embedded systems that could potentially be affected by the
Year 2000 problem); Assessment (all applications or components and the impact
on overall business operations and a plan to correct deficiencies and the cost
to do so); Remediation (the modification, upgrade or replacement of deficient
hardware and software applications and infrastructure modifications); and
Testing (a detailed, comprehensive testing program for the modified critical
component, system or software that involves the planning, execution and
analysis of results).

   COM/Energy's inventory phase required an assessment of all date sensitive
information and transaction processing computer systems and determined that
approximately 90% of its software systems needed some modifications or
replacement.  Plans were developed and are being implemented to correct and
test all affected systems, with priorities assigned based on the importance of
the activity.  COM/Energy has identified the software and hardware installa-
tions that are necessary.  All installations are expected to be completed and
tested by mid-1999.

   COM/Energy has also inventoried its non-information technology systems
that may be date sensitive (facilities, electric and gas operations, energy
<PAGE>
<PAGE 33>

                           COMMONWEALTH ENERGY SYSTEM

supply/production and distribution) that use embedded technology such as
micro-controllers and micro-processors.  COM/Energy is approximately 86%
complete in its efforts to resolve non-compliance with Year 2000 requirements
related to its non-information technology systems.  COM/Energy anticipates
that these systems will be updated or replaced as necessary and tested by mid-
1999.

   At present, the remediation phase for information technology as it applies
to hardware and non-technology issues is scheduled for completion by June 1,
1999.  The testing phase for Year 2000 compliance is approximately 70%
complete and is scheduled to be concluded by June 30, 1999.  All other phases
are complete.

   Modifying and testing COM/Energy's information and transaction processing
systems from 1996 through 2000 is currently expected to cost approximately $7
million, including approximately $900,000 incurred through 1997 and $3.1
million spent in 1998.  Approximately $3 million is expected to be spent in
1999 and 2000.  Year 2000 costs have been expensed as incurred and will
continue to be funded from operations.

   In addition to its internal efforts, COM/Energy has initiated formal
communications with its significant suppliers to determine the extent to which
COM/Energy may be vulnerable to its suppliers' failure to correct their own
Year 2000 issues.  As of February 1, 1999, COM/Energy has received responses
from approximately 75% of those entities contacted, and nearly all have
indicated that they are or will be Year 2000 compliant.  Failure of
COM/Energy's significant suppliers to address Year 2000 issues could have a
material adverse effect on COM/Energy's operations, although it is not
possible at this time to quantify the amount of business that might be lost or
the costs that could be incurred by COM/Energy.  Contact with significant
vendors is continuing and inadequate or marginal responses are being pursued
by COM/Energy.  COM/Energy is prepared to replace certain suppliers or to
initiate other contingency plans should these vendors not respond to
COM/Energy's satisfaction by July 1, 1999.

   In addition, parts of the global infrastructure, including national
banking systems, electrical power grids, gas pipelines, transportation
facilities, communications and governmental activities, may not be fully
functional after 1999.  Infrastructure failures could significantly reduce
COM/Energy's ability to acquire energy and its ability to serve its customers
as effectively as they are now being served.  COM/Energy is identifying
elements of the infrastructure that are critical to its operations and is
obtaining information as to the expected Year 2000 readiness of these ele-
ments.

   COM/Energy has started its contingency planning for critical operational
areas that might be effected by the Year 2000 issue if compliance by
COM/Energy is delayed.  COM/Energy gas and electric operations currently have
emergency operating plans as well as information technology disaster recovery
plans as components of its standard operating procedures.  These plans will be
enhanced to identify potential Year 2000 risks to normal operations and the
appropriate reaction to these potential failures including contingency plans
that may be required for any third parties that fail to achieve Year 2000
compliance.  All necessary contingency plans are expected to be completed by
June 30, 1999, although in certain cases, especially infrastructure failures,
<PAGE>
<PAGE 34>

                           COMMONWEALTH ENERGY SYSTEM

there may be no practical alternative course of action available to
COM/Energy.

   COM/Energy is working with other energy industry entities, both regionally
and nationally with respect to Year 2000 readiness and is cooperating in the
development of local and wide-scale contingency planning.

   While COM/Energy believes its efforts to address the Year 2000 issue will
allow it to be successful in avoiding any material adverse effect on
COM/Energy's operations or financial condition, it recognizes that failing to
resolve Year 2000 issues on a timely basis would, in a "most reasonably likely
worst case scenario," significantly limit its ability to acquire and distrib-
ute energy and process its daily business transactions for a period of time,
especially if such failure is coupled with third party or infrastructure
failures.  Similarly, COM/Energy could be significantly effected by the
failure of one or more significant suppliers, customers or components of the
infrastructure to conduct their respective operations after 1999.  Adverse
affects on COM/Energy could include, among other things, business disruption,
increased costs, loss of business and other similar risks.

   The foregoing discussion regarding Year 2000 project timing, effective-
ness, implementation and costs includes forward-looking statements that are
based on management's current evaluation using available information.  Factors
that might cause material changes include, but are not limited to, the
availability of key Year 2000 personnel, the readiness of third parties, and
COM/Energy's ability to respond to unforeseen Year 2000 complications.

Environmental Matters

   Commonwealth Gas is participating in the assessment of a number of former
manufactured gas plant (MGP) sites and alleged MGP waste disposal locations to
determine if and to what extent such sites have been contaminated and whether
Commonwealth Gas may be responsible for remedial actions.  In April 1998,
Commonwealth Gas recorded an additional liability and corresponding regulatory
asset of $500,000 due to an increase in the site clean-up cost estimate for an
MGP site for which Commonwealth Gas was previously cited as a Potentially
Responsible Party.  The DTE has approved recovery of costs associated with MGP
sites.

   Commonwealth Gas and certain other COM/Energy subsidiaries are also
involved in other known or potentially contaminated sites where the associated
costs may not be recoverable in rates and have recorded in prior years an
estimated liability (and a charge to operations) of $1.8 million to cover the
expected costs associated with assessment and remediation activities.  These
estimates are reviewed and adjusted periodically as further investigation and
assignment of responsibility occurs.  COM/Energy is unable to estimate its
ultimate liability for future environmental remediation costs.  However, in
view of COM/Energy's current assessment of its environmental responsibilities,
existing legal requirements and regulatory policies, management does not
believe that these matters will have a material adverse effect on COM/Energy's
results of operations or financial position.

   On January 1, 1997, COM/Energy adopted the provisions of Statement of
Position (SOP) 96-1, "Environmental Remediation Liabilities."  SOP 96-1 pro-
vides authoritative guidance for recognition, measurement, display and
<PAGE>
<PAGE 35>

                           COMMONWEALTH ENERGY SYSTEM

disclosure of environmental remediation liabilities in financial statements. 
COM/Energy has recorded environmental remediation liabilities net of amounts
paid of $2.9 million at December 31, 1998.  The adoption of SOP 96-1 did not
have a material adverse effect on COM/Energy's results of operations or
financial position.

New Accounting Principles

   In June 1998, the Financial Accounting Standards Board issued SFAS No.
133, "Accounting for Derivative Instruments and Hedging Activities."  SFAS No.
133 establishes accounting and reporting standards requiring that every
derivative instrument (including certain derivative instruments embedded in
other contracts possibly including fixed-price fuel supply and power con-
tracts) be recorded on the balance sheet as either an asset or liability
measured at its fair value.  SFAS No. 133 requires that changes in the
derivative's fair value be recognized currently in earnings unless specific
hedge accounting criteria are met.  Special accounting for qualifying hedges
allows a derivative's gains and losses to offset related results on the hedged
item in the income statement, and requires that a company must formally
document, designate and assess the effectiveness of transactions that receive
hedge accounting.

   SFAS No. 133 is effective for fiscal years beginning after June 15, 1999
and may be implemented as of the beginning of any fiscal quarter after
issuance but cannot be applied retroactively.  SFAS No. 133 must be applied to
derivative instruments and certain derivative instruments embedded in hybrid
contracts that were issued, acquired or substantively modified after December
31, 1997 and, at the company's election, before January 1, 1998.

   In April 1998, the American Institute of Certified Public Accountants
issued SOP 98-5, "Reporting on the Costs of Start-Up Activities" (SOP 98-5). 
SOP 98-5 provides guidance on the financial reporting of start-up and organi-
zation costs and requires that these costs be expensed as incurred.

   The adoption of SFAS No. 133 and SOP 98-5 is not expected to have a
material impact on COM/Energy's results of operations or financial condition.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

   Although COM/Energy has material commodity purchase contracts and finan-
cial instruments (debt), these instruments are not subject to market risk. 
COM/Energy's electric distribution and gas distribution subsidiaries have rate
making mechanisms which allow for the recovery of fuel costs from customers. 
The fuel adjustment mechanisms allow COM/Energy's subsidiaries to pass all
costs related to the purchase of commodities to the customer, thereby insulat-
ing COM/Energy from market risk.

   Similarly, any change in the fair market value of COM/Energy's prudently
incurred debt obligations realized by COM/Energy would be borne by customers
through future rates.
<PAGE>
<PAGE 36>

                           COMMONWEALTH ENERGY SYSTEM

   Although not a rate regulated subsidiary, COM/Energy's MATEP facility has
cost of service based contracts with its customers which are similar to fuel
recovery mechanisms discussed above.  Under these contracts, the cost of
commodities purchased for generation is passed on to the customer, thereby
protecting COM/Energy from changes in the market price of fuel.


Item 8.  Financial Statements and Supplementary Data

   The Company's financial statements required by this item are filed
herewith on pages 37 through 61 of this report.


Item 9.  Changes in and Disagreements with Accountants on Accounting and       
         Financial Disclosure

   None.
<PAGE>
<PAGE 37>

                           COMMONWEALTH ENERGY SYSTEM

Item 8.  Financial Statements and Supplementary Data

                               MANAGEMENT'S REPORT
               Commonwealth Energy System and Subsidiary Companies

      The consolidated financial statements presented herein are representa-
tions of the management of Commonwealth Energy System.  Management recognizes
its responsibility for the preparation and presentation of financial state-
ments in conformity with generally accepted accounting principles.  To fulfill
this responsibility, management maintains a system of internal accounting
controls, including established policies and procedures and a comprehensive
internal auditing program to evaluate the adequacy and effectiveness of
accounting and operating controls, compliance with system policies and
procedures and the safeguarding of system assets.

      The responsibility of our independent auditors' examination is limited
to the expression of an opinion as to the fairness of the consolidated
financial statements presented.  The independent auditors are selected by the
Board of Trustees and report their findings thereto through the Audit Commit-
tee, which is comprised of three outside Trustees.  The Board of Trustees is
responsible for ensuring that both the independent auditors and management
fulfill their respective responsibilities as they pertain to these consolidat-
ed financial statements.

                                                      James D. Rappoli,
                                                      Financial Vice President
                                                        and Treasurer

February 18, 1999


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS

To the Board of Trustees of Commonwealth Energy System:

      We have audited the accompanying consolidated balance sheets and
consolidated statements of capitalization of COMMONWEALTH ENERGY SYSTEM (the
System) (a Massachusetts trust) and subsidiary companies as of December 31,
1998 and 1997, and the related consolidated statements of income, cash flows,
changes in common shareholders' investment and changes in redeemable preferred
shares for each of the three years in the period ended December 31, 1998. 
These consolidated financial statements are the responsibility of the System
and subsidiary companies' management.  Our responsibility is to express an
opinion on these consolidated financial statements based on our audits.

      We conducted our audits in accordance with generally accepted auditing
standards.  Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement.  An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements.  An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation.  We believe that our audits provide a reasonable basis
for our opinion.

      In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Common-
wealth Energy System and subsidiary companies as of December 31, 1998 and
1997, and the results of their operations and their cash flows for each of the
three years in the period ended December 31, 1998, in conformity with general-
ly accepted accounting principles.

                                                      Arthur Andersen LLP

Boston, Massachusetts
February 18, 1999
<PAGE>
<PAGE 38>


                           COMMONWEALTH ENERGY SYSTEM

                   INDEX TO FINANCIAL STATEMENTS AND SCHEDULES

                                    PART II.


FINANCIAL STATEMENTS


      Consolidated Statements of Income for the Years Ended December 31, 1998,
      1997 and 1996

      Consolidated Statements of Cash Flows for the Years Ended December 31,
      1998, 1997 and 1996

      Consolidated Balance Sheets at December 31, 1998 and 1997

      Consolidated Statements of Capitalization for the Years Ended December
      31, 1998, 1997 and 1996

      Consolidated Statements of Changes in Common Shareholders' Investment
      for the Years Ended December 31, 1998, 1997 and 1996

      Consolidated Statements of Changes in Redeemable Preferred Shares for
      the Years Ended December 31, 1998, 1997 and 1996

      Notes to Consolidated Financial Statements


                                    PART IV.


SCHEDULES

      I     Investments in, Equity in Earnings of, and Dividends Received      
            from Related Parties for the Years Ended December 31, 1998, 1997   
            and 1996

      II    Valuation and Qualifying Accounts for the Years Ended December 31,
            1998, 1997 and 1996

SCHEDULES OMITTED

      All other schedules are not submitted because they are not applicable or
      not required or because the required information is included in the
      financial statements or notes thereto.


<PAGE>
<PAGE 39>

                           COMMONWEALTH ENERGY SYSTEM

                        CONSOLIDATED STATEMENTS OF INCOME

              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

                 (Dollars in thousands except per share amounts)

                                               1998        1997        1996

Operating Revenues
  Electric                                  $  636,563  $  688,508   $  649,678
  Gas                                          306,099     333,977      341,867
  Steam and other                               37,453      19,259       19,360
                                               980,115   1,041,744    1,010,905

Operating Expenses
  Fuel used in electric production,
    principally oil                            107,066     129,021       91,690
  Electricity purchased for resale             228,920     265,805      265,019
  Cost of gas sold                             163,701     184,122      187,530
  Other operation                              235,426     225,658      215,319
  Maintenance                                   39,864      36,838       40,913
  Depreciation                                  60,997      53,405       51,782
  Taxes-
    Local property                              20,879      19,130       18,049
    Income                                      26,253      31,040       35,840
    Payroll and other                            8,149       9,075        7,839
                                               891,255     954,094      913,981
Operating Income                                88,860      87,650       96,924

Other Income
  Gain from sale of real estate, net            10,789         -            402
  Other                                          1,664       2,601        4,217
                                                12,453       2,601        4,619

Income Before Interest Charges                 101,313      90,251      101,543

Interest Charges
  Long-term debt                                37,435      33,572       35,586
  Other interest charges                         9,474       6,778        6,782
                                                46,909      40,350       42,368

Net Income                                      54,404      49,901       59,175
  Dividends on preferred shares                    930         988        1,050
Earnings Applicable to Common Shares        $   53,474  $   48,913   $   58,125

Average Number of Common Shares
  Outstanding                               21,534,042  21,531,433   21,529,676
Basic and Diluted Earnings
  Per Common Share                               $2.48       $2.27        $2.70














The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE>
<PAGE 40>

                           COMMONWEALTH ENERGY SYSTEM

                           CONSOLIDATED BALANCE SHEETS

                           DECEMBER 31, 1998 AND 1997

                             (Dollars in thousands)

                                                        1998        1997
Assets

Property, Plant and Equipment, at original cost
  Electric                                           $  963,181   $1,173,797
  Gas                                                   391,069      373,541
  Other                                                 118,717       72,475
                                                      1,472,967    1,619,813
  Less-Accumulated depreciation and amortization        462,153      577,962
                                                      1,010,814    1,041,851
  Construction work in progress                           6,942        7,864
  Nuclear fuel in process                                 1,568          193
                                                      1,019,324    1,049,908

Equity in Corporate Joint Ventures
  Nuclear electric power companies (2.5% to 4.5%)        10,391       10,368
  Other investments                                       3,640        3,399
                                                         14,031       13,767

Restricted Cash - Long-term                             172,239          -  

Current Assets
  Cash and cash equivalents                              74,840        4,299
  Restricted cash                                        21,094          -
  Accounts receivable, less reserves of $9,084 in
    1998 and $9,408 in 1997                             122,064      128,946
  Unbilled revenues                                      21,211       32,029
  Inventories, at average cost-
    Electric production fuel oil                            572        1,902
    Natural gas                                          24,519       23,301
    Materials and supplies                                7,833        7,441
  Prepaid property taxes                                  8,112        9,282
  Other                                                   5,466        5,786
                                                        285,711      212,986

Deferred Charges
  Regulatory assets                                     210,628      178,864
  Power sale agreements                                  29,685          -
  Other                                                  31,270       29,525
                                                        271,583      208,389





                                                     $1,762,888   $1,485,050












The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE>
<PAGE 41>

                           COMMONWEALTH ENERGY SYSTEM

                           CONSOLIDATED BALANCE SHEETS

                           DECEMBER 31, 1998 AND 1997

                             (Dollars in thousands)

                                                        1998        1997

Capitalization and Liabilities

Capitalization (See separate statement)
  Common share investment                            $  449,592   $  430,770
  Redeemable preferred shares, less current
    sinking fund requirements                            11,380       12,200
  Long-term debt, less current sinking fund
    requirements and maturing debt                      385,602      364,311
                                                        846,574      807,281

Capital Lease Obligations                                10,982       12,272


Current Liabilities
  Interim Financing-
    Notes payable to banks                                2,000       94,075
    Maturing long-term debt                              49,000       19,000
                                                         51,000      113,075

  Other Current Liabilities-
    Current sinking fund requirements                     8,123        8,473
    Accounts payable                                    106,952      107,157
    Accrued taxes-
      Local property and other                           10,633        9,795
      Income                                            134,768       14,410
    Accrued interest                                      5,213        6,778
    Dividends declared                                    8,732        8,517
    Other                                                54,462       43,627
                                                        328,883      198,757
                                                        379,883      311,832


Deferred Credits
  Accumulated deferred income taxes                         -        176,354
  Regulatory liabilities                                375,207       14,087
  Nuclear units' purchased power contracts               59,507       69,659
  Unamortized investment tax credits                     21,616       25,340
  Other                                                  69,119       68,225
                                                        525,449      353,665


Commitments and Contingencies

                                                     $1,762,888   $1,485,050












The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE>
<PAGE 42>

                           COMMONWEALTH ENERGY SYSTEM

                      CONSOLIDATED STATEMENTS OF CASH FLOWS

              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

                             (Dollars in thousands)

                                                   1998        1997       1996
Operating Activities
  Net income                                    $  54,404   $ 49,901  $ 59,175
  Gain from sale of real estate, net              (10,789)       -        (402)
  Effects of noncash items-
    Depreciation and amortization                  74,110     65,646    63,331
    Deferred income taxes, net                   (126,114)     2,542     3,515
    Investment tax credits, net                    (3,723)    (1,278)   (1,285)
    Earnings from corporate joint ventures         (1,636)    (1,348)   (1,557)
  Dividends from corporate joint ventures           1,887      1,272     1,376
  Change in working capital, exclusive of cash-
    Accounts receivable and unbilled revenues      17,700    (12,269)   (9,446)
    Accrued (prepaid) income taxes                120,358      6,500   (14,097)
    Accrued (prepaid) local property and
      other taxes                                   2,008        532      (555)
    Accounts payable and other                      9,449     20,756   (33,956)
  Transition costs deferral                       (42,498)       -         -
  Fuel charge stabilization deferral, net           1,465     (5,543)    2,372
  Deferred postretirement benefits costs              -       (2,126)   (2,157)
  All other operating items                       (14,672)   (17,034)   (3,689)
Net cash provided by operating activities          81,949    107,551    62,625

Investing Activities
  Additions to property, plant and
    equipment (inclusive of AFUDC)-
      Electric                                    (38,289)   (34,524)  (38,844)
      Gas                                         (19,362)   (18,230)  (11,611)
      Other                                        (3,297)    (4,804)   (2,730)
  Purchase of total energy plant
    and related contracts                        (146,270)       -         -
  Proceeds from sale of real estate                22,175        -         700
  Proceeds from sale of generating assets, net    444,474        -         -  
Net cash (provided by) used for
  investing activities                            259,431    (57,558)  (52,485)

Financing Activities
  Sale of common shares                               -          -          32
  Payment of dividends                            (35,858)   (35,056)  (34,205)
  Proceeds from (payment of) short-term
    borrowings, net                               (92,075)   (24,400)   62,875
  Long-term debt issues                           152,500     35,000       -  
  Retirement of long-term debt and preferred
    shares through sinking funds                   (8,123)    (8,473)   (8,436)
  Long-term debt issues refunded                  (93,950)   (14,260)  (33,230)
Net cash used for financing activities            (77,506)   (47,189)  (12,964)

Net increase (decrease) in cash,
  cash equivalents and restricted cash            263,874      2,804    (2,824)
Cash and cash equivalents
  at beginning of period                            4,299      1,495     4,319
Cash, cash equivalents and restricted
  cash at end of period                         $ 268,173   $  4,299  $  1,495

Supplemental Disclosures of Cash Flow Information
  Cash paid during the period for:
    Interest (net of capitalized amounts)       $  44,685   $ 38,201  $ 41,294
    Income taxes                                $  28,164   $ 24,436  $ 46,563

The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE>
<PAGE 43>

                           COMMONWEALTH ENERGY SYSTEM

                    CONSOLIDATED STATEMENTS OF CAPITALIZATION

                           DECEMBER 31, 1998 AND 1997

                             (Dollars in thousands)

                                                           1998       1997
Common Share Investment
  Common shares, $2 par value-
    Authorized-50,000,000 shares
    Outstanding-21,540,550 shares in 1998
      and 21,531,784 shares in 1997                     $ 43,081    $ 43,063
    Amounts paid in excess of par value                  112,170     111,912
    Retained earnings                                    294,341     275,795
      Total common share investment                      449,592     430,770

Redeemable Preferred Shares,
  Cumulative, $100 Par Value
    Series A, 4.80%                                        2,400       2,520
    Series B, 8.10%                                        3,680       3,840
    Series C, 7.75%                                        6,120       6,660
    Less-Current sinking fund requirements                  (820)       (820)
      Total redeemable preferred shares                   11,380      12,200

Long-term Debt
  Parent
    Senior Notes due-
      1998, 10.45%                                           -        10,000
      1999, 10.58%                                        10,000      10,000
      2000, variable rate (5.673% in 1998)                40,000         -
      Less-Maturing long-term debt                       (30,000)    (10,000)
        Total Parent long-term debt                       20,000      10,000

  Subsidiary companies
    Mortgage Bonds, collateralized by property of
      operating subsidiaries, due-
        2001, 8.99%                                       10,800      14,450
        2006, 8.85%                                          -        34,300
        2007, 6.54%                                       10,000      10,000
        2017, 7.04%                                       25,000      25,000
        2020, 7 3/8%                                         -        10,000
        2020, 9 7/8%                                         -        40,000
        2020, 9.95%                                       25,000      25,000
        2033, 7.11%                                       35,000      35,000

    Notes due- 
        1999, variable rate (6.25% in 1998 and
                6.391% in 1997)                            9,000       9,000
        1999, 8.04%                                       10,000      10,000
        2002, 7 3/4%                                       2,400       2,500
        2002, 9.30%                                       30,000      30,000
        2003, 7.43%                                       15,000      15,000
        2004, 9.50%                                        7,500      10,000
        2007, 8.70%                                        5,000       5,000
        2007, 9.55%                                       10,000      10,000
        2008, 7.70%                                       10,000      10,000
        2012, 9.37%                                       14,737      15,789
        2013, 7.98%                                       25,000      25,000
        2014, 9.53%                                       10,000      10,000
        2019, 9.60%                                       10,000      10,000
        2021, 6.924%                                     112,500         -
        2023, 8.47%                                       15,000      15,000
        Less-Maturing long-term debt                     (19,000)     (9,000)
             Current sinking fund requirements            (7,303)     (7,653)
             Unamortized discount, net                       (32)        (75)
        Total subsidiary companies' long-term debt       365,602     354,311

        Total long-term debt                             385,602     364,311

          Total capitalization                          $846,574    $807,281


The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE>
<PAGE 44>

                           COMMONWEALTH ENERGY SYSTEM

      CONSOLIDATED STATEMENTS OF CHANGES IN COMMON SHAREHOLDERS' INVESTMENT

              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

                                                     Amounts
                                             Par     Paid in
                                             Value   Excess
                                             $2 Per  of Par   Retained
                                  Shares     Share   Value    Earnings  Total
                                             (Dollars in thousands)

Balance December 31, 1995        21,528,268  $43,056 $111,749 $235,980 $390,785
Add (Deduct)-
 Net income                             -        -        -     59,175   59,175
 Sale of shares                       1,408        3       29      -         32
 Cost of stock split                    -        -        (93)     -        (93)
 Cash dividends declared-
  Common shares-$1.54 per share         -        -        -    (33,155) (33,155)
  Preferred shares                      -        -        -     (1,050)  (1,050)
Balance December 31, 1996        21,529,676   43,059  111,685  260,950  415,694
Add (Deduct)-
 Net income                             -        -        -     49,901   49,901
 Shares issued pursuant to
  Long-Term Incentive
  Compensation Plan                   2,108        4       43      -         47
 Amortization of deferred
  compensation                          -        -        184      -        184
 Cash dividends declared-
  Common shares-$1.58 per share         -        -        -    (34,068) (34,068)
  Preferred shares                      -        -        -       (988)    (988)
Balance December 31, 1997        21,531,784   43,063  111,912  275,795  430,770
Add (Deduct)-
 Net income                             -        -        -     54,404   54,404
 Shares issued pursuant to
  Long-Term Incentive
  Compensation Plan                   8,766       18      178      -        196
 Amortization of deferred
  compensation                          -        -         80      -         80
 Cash dividends declared-
  Common shares-$1.62 per share         -        -        -    (34,928) (34,928)
  Preferred shares                      -        -        -       (930)    (930)
Balance December 31, 1998        21,540,550  $43,081 $112,170 $294,341 $449,592



         Consolidated Statements of Changes in Redeemable Preferred Shares
                Commonwealth Energy System and Subsidiary Companies
               For the Years Ended December 31, 1998, 1997 and 1996

                                             Authorized and Outstanding
                                    Cumulative Preferred Shares-$100 Par Value

                                      Series A   Series B   Series C    Total
                                       4.80%      8.10%      7.75%      Shares

Balance December 31, 1995             27,600     41,600     77,400     146,600
    Less-Sinking fund redemptions      1,200      1,600      5,400       8,200
Balance December 31, 1996             26,400     40,000     72,000     138,400
    Less-Sinking fund redemptions      1,200      1,600      5,400       8,200
Balance December 31, 1997             25,200     38,400     66,600     130,200
    Less-Sinking fund redemptions      1,200      1,600      5,400       8,200
Balance December 31, 1998             24,000     36,800     61,200     122,000



The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE>
<PAGE 45>

                           COMMONWEALTH ENERGY SYSTEM

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1)   General Information

      Commonwealth Energy System (the Parent) is an exempt public utility
holding company with investments in four operating public utility companies
located in central, eastern and southeastern Massachusetts.  The Parent,
together with its subsidiaries, is collectively referred to as "COM/Energy." 
Electric operations have been involved in the production, distribution and
sale of electricity to 373,000 customers in 41 communities including New
Bedford, Plymouth, Cambridge and the geographic area comprising Cape Cod.  Gas
operations serve 239,000 customers in 51 communities including New Bedford,
Cambridge, Plymouth and Worcester.  In addition to the utility companies, the
Parent owns a subsidiary that operates a total energy plant serving the
Longwood Medical Area of Boston (see Note 3(e)), a steam distribution company,
five real estate trusts, a company engaged in the operation of LNG facilities
and a subsidiary that is pursuing energy-related business opportunities.

      COM/Energy has 1,638 regular employees including 1,029 (63%) represented
by various collective bargaining units covered by separate contracts with
expiration dates ranging from March 2001 through April 2003.

      In response to the significant changes that have taken place in the
utility industry, COM/Energy sold substantially all of its non-nuclear
generating assets in 1998 to focus on the transmission and distribution of
energy and related services (see Note 2(c).

      In December 1998, the Parent signed an Agreement and Plan of Merger with
BEC Energy, the parent company of Boston Edison Company, that will create an
energy delivery company serving approximately 1.3 million customers located
entirely within Massachusetts including more than one million electric
customers in 81 communities and 240,000 gas customers in 51 communities.

(2)   Significant Accounting Policies

      (a)  Principles of Consolidation and Accounting

      The consolidated financial statements include the accounts of the Parent
and all of its subsidiary companies.  All significant intercompany accounts
and transactions have been eliminated in consolidation.

      The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period.  Actual results could differ from those estimates.

      Certain prior year amounts are reclassified from time to time to conform
with the presentation used in the current year's financial statements.

      (b)  Regulatory Assets and Liabilities

      COM/Energy's operating utility companies are regulated as to rates,
accounting and other matters by various authorities, including the Federal
Energy Regulatory Commission (FERC) and the Massachusetts Department of
Telecommunications and Energy (DTE).

      Based on the current regulatory framework, COM/Energy accounts for the
economic effects of regulation in accordance with the provisions of Statement
of Financial Accounting Standards (SFAS) No. 71, "Accounting for the Effects
of Certain Types of Regulation."  Regulated subsidiaries of the Parent have
established various regulatory assets in cases where the DTE and/or the FERC
have permitted or are expected to permit recovery of specific costs over time.
<PAGE>
<PAGE 46>

                           COMMONWEALTH ENERGY SYSTEM

Similarly, the regulatory liabilities established by COM/Energy are required
to be refunded to customers over time.  In the event the criteria for applying
SFAS No. 71 are no longer met, the accounting impact would be an extraordi-
nary, non-cash charge to operations of an amount that could be material. 
Criteria that give rise to the discontinuance of SFAS No. 71 include: 1)
increasing competition that restricts COM/Energy's ability to establish prices
to recover specific costs, and 2) a significant change in the current manner
in which rates are set by regulators from cost based regulation to another
form of regulation.  These criteria are reviewed on a regular basis to ensure
the continuing application of SFAS No. 71 is appropriate.  Based on the
current evaluation of the various factors and conditions that are expected to
impact future cost recovery, COM/Energy believes that its regulatory assets,
including those related to generation, are probable of future recovery.

      As a result of electric industry restructuring, COM/Energy's retail
electric companies discontinued application of accounting principles applied
to their investment in electric generation facilities effective March 1, 1998. 
COM/Energy will not be required to write off any of its generation-related
assets, including regulatory assets.  These assets will be retained on the
Consolidated Balance Sheets because the legislation and the DTE's plan for a
restructured electric industry specifically provide for their recovery through
a non-bypassable transition charge.

      The principal regulatory assets included in deferred charges were as
follows:
                                                          1998        1997
                                                       (Dollars in thousands)

      Transition costs                                  $ 47,771     $    -  
      Fuel charge stabilization                           26,682       29,655
      Postretirement benefit costs                        23,958       25,475
      Power contract buy-out                              15,717       17,609
      Deferred income taxes                               15,737       13,089
      FERC Order 636 transition costs                      5,968        7,336
      Maine Yankee unrecovered plant and 
         decommissioning costs                            30,646       34,908
      Connecticut Yankee unrecovered plant and
         decommissioning costs                            25,185       28,566
      Yankee Atomic unrecovered plant and
         decommissioning costs                             3,676        6,184
      Seabrook related costs                               3,008        4,324
      Environmental costs                                  5,079        3,930
      Other                                                7,201        7,788
                                                        $210,628     $178,864

      The regulatory liabilities, reflected in the accompanying Consolidated
Balance Sheets were as follows:
                                                          1998        1997
                                                       (Dollars in thousands)

      Regulatory liability related
         to sale of generating assets                   $358,604     $    -  
      Deferred income taxes                               12,196       13,143
      Demand-side management deferral                      3,956          -  
      Other                                                  451          944
                                                        $375,207     $ 14,087

      The regulatory liability of $358.6 million was established pursuant to
COM/Energy's divestiture filing that was approved by the DTE in which
COM/Energy agreed to use the net proceeds from the sale of its non-nuclear
generating assets to reduce transition costs that are billed to its retail
electric customers over the next several years as a result of electric
industry restructuring.
<PAGE>
<PAGE 47>

                           COMMONWEALTH ENERGY SYSTEM

      COM/Energy's regulatory assets, including the costs associated with
existing power contracts with three Yankee nuclear power plants that have shut
down permanently (see Note 3(d)), and all of its regulatory liabilities are
reflected in rates charged to customers.  Regulatory assets are to be recov-
ered over the next 11 years pursuant to the legislation discussed below.

      In November 1997, the Commonwealth of Massachusetts enacted a comprehen-
sive electric utility industry restructuring bill.  On November 19, 1997, the
Parent's electric subsidiaries filed a restructuring plan with the DTE.  The
plan, approved by the DTE on February 27, 1998, provides that the Parent's
retail electric subsidiaries, beginning March 1, 1998, initiate a ten percent
rate reduction for all customer classes and allow customers to choose their
energy supplier.  As part of the plan, the DTE authorized the recovery of
certain strandable costs and provides that certain future costs may be
deferred to achieve or maintain the rate reductions that the restructuring
bill mandates.  The legislation gives the DTE the authority to determine the
amount of strandable costs that will be eligible for recovery.  Costs that
will qualify as strandable costs and be eligible for recovery include, but are
not limited to, certain above market costs associated with generating facili-
ties, costs associated with long-term commitments to purchase power at above
market prices from independent power producers and regulatory assets and
associated liabilities related to the generation portion of the electric
business.

      (c)  Divestiture of Generation Assets

      The cost of transitioning to competition will be mitigated, in part, by
the sale of COM/Energy's non-nuclear generating assets.  On May 27, 1998,
COM/Energy agreed to sell substantially all of its non-nuclear generating
assets (984 MW) to affiliates of The Southern Company of Atlanta, Georgia. 
The sale was conducted through an auction process that was outlined in a
restructuring plan filed with the DTE in November 1997 in conjunction with the
state's industry restructuring legislation enacted in 1997.  The sale was
approved by the DTE on October 30, 1998 and by the FERC on November 12, 1998. 
Proceeds from the sale of these assets, after construction-related adjustments
at the closing that occurred on December 30, 1998, amounted to approximately
$453.9 million or 6.1 times their book value of approximately $74.2 million. 
The proceeds from the sale, net of book value, transaction costs and certain
other adjustments, amounted to $358.6 million and will be used to reduce
transition costs related to electric industry restructuring that otherwise
would have been collected through a non-bypassable transition charge.

      COM/Energy established Energy Investment Services, Inc. as the vehicle
to invest the net proceeds from the sale of Canal Electric Company's (Canal
Electric) generation assets.  These proceeds will be invested in a conserva-
tive portfolio of securities that is designed to maintain principal and earn a
reasonable return.  Both the principal amount and income earned will be used
to reduce the transition costs that would otherwise be billed to customers of
Cambridge Electric Light Company (Cambridge Electric) and Commonwealth
Electric Company (Commonwealth Electric).  The net proceeds have been classi-
fied as restricted cash on the Consolidated Balance Sheet.

      (d)  Equity Method of Accounting

      COM/Energy uses the equity method of accounting for investments in
corporate joint ventures due, in part, to its ability to exercise significant
influence over operating and financial policies of these entities.  Under this
method, it records as income the proportionate share of the net earnings of
the joint ventures with a corresponding increase in the carrying value of the
investment.  The investment is reduced as cash dividends are received. 
COM/Energy conducts business with the corporate joint ventures in which it has
investments, principally four nuclear generating facilities located in New
England and a 3.8% interest in Hydro-Quebec Phase II.
<PAGE>
<PAGE 48>

                           COMMONWEALTH ENERGY SYSTEM

      (e)  Operating Revenues

      Customers are billed for their use of electricity and gas on a cycle
basis throughout the month.  To reflect revenues in the proper period, the
estimated amount of unbilled sales revenue is recorded each month.

      COM/Energy's utility companies are generally permitted to bill customers
for costs associated with purchased power and transmission, fuel used in
electric production, gas, conservation and load management and environmental
costs.  The amount of such costs incurred but not yet reflected in customers'
bills is recorded as unbilled revenues.

      (f)  Depreciation

      Depreciation is provided using the straight-line method at rates
intended to amortize the original cost and the estimated cost of removal less
salvage of properties over their estimated economic lives. The average
composite depreciation rates were as follows: 

                                     1998      1997     1996

      Electric                       3.81%     3.66%    3.65%
      Gas                            2.95      2.95     2.94
      District heating and cooling   4.09      3.80     3.89
      LNG                            3.61      3.65     3.59

      (g)  Allowance for Funds Used During Construction

      Under applicable rate-making practices, COM/Energy companies are
permitted to include an allowance for funds used during construction (AFUDC)
as an element of their depreciable property costs.  This allowance is based on
the amount of construction work in progress that is not included in the rate
base on which utility companies earn a return.  An amount equal to the AFUDC
capitalized in the current period is reflected in other interest charges in
the accompanying Consolidated Statements of Income and amounted to $413,000,
$368,000 and $257,000 in 1998, 1997 and 1996, respectively.

      While AFUDC does not provide funds currently, these amounts are recover-
able in revenues over the service life of the constructed property.  The
amount of AFUDC recorded was at a weighted average rate of 5.5% in 1998, 6.1%
in 1997 and 6.2% in 1996.

      (h) Earnings Per Share

      SFAS No. 128, "Earnings Per Share," requires the presentation of both
basic and diluted earnings per share (EPS).  Diluted EPS reflect the possible
impact on EPS that could occur if securities or other contracts to issue
common stock were exercised or converted into common stock or resulted in the
issuance of common stock that then shared in the earnings of the entity.  The
Parent granted potential awards in the form of common shares to certain key
employees pursuant to its Long Term Incentive Compensation Plan (see Note
5(d)) during the first quarter of 1997, and to members of the Board of
Trustees in June 1998 pursuant to the Restricted Common Share Plan for
Trustees.  The granting of these shares did not have a material impact on the
Parent's EPS.

(3)   Commitments and Contingencies

      (a)  Capital Expenditures

      COM/Energy is engaged in a continuous construction program presently
estimated at $327.9 million for the five-year period 1999 through 2003.  Of
that amount, $63.4 million is estimated for 1999.  The program is subject to
periodic review and revision.
<PAGE>
<PAGE 49>

                           COMMONWEALTH ENERGY SYSTEM

      (b)  Seabrook Nuclear Power Plant

      COM/Energy's 3.52% interest in the Seabrook nuclear power plant is owned
by Canal Electric, a wholesale electric generating subsidiary, to provide for
a portion of the capacity and energy needs of affiliates Cambridge Electric
and Commonwealth Electric.  Canal Electric is recovering 100% of its Seabrook
1 investment through a power contract with Cambridge Electric and Commonwealth
Electric pursuant to FERC and DTE approval.

      Pertinent information with respect to Canal Electric's joint-ownership
interest in Seabrook 1 and information relating to operating expenses that are
included in the accompanying financial statements are as follows:

                               1998       1997
                          (Dollars in thousands)

    Utility plant-in-
      service                $232,471   $232,471   Plant capacity (MW)    1,150
    Nuclear fuel               23,581     22,207   Canal Electric's share:
    Accumulated depreciation                         Percent interest     3.52%
      and amortization        (71,929)   (64,379)    Entitlement (MW)      40.5
    Construction work in                           In-service date         1990
      progress                  1,852      1,036   Operating license
                             $185,975   $191,335     expiration date       2026

                                1998       1997       1996
                                 (Dollars in thousands)
      Operating expenses:
        Fuel                  $ 1,274    $ 1,471    $ 1,727
        Other operation         4,369      4,206      4,091
        Maintenance             1,437      2,364        990
        Depreciation            6,577      6,314      6,544
        Amortization            1,319      1,319      1,319
                              $14,976    $15,674    $14,671

      Canal Electric and the other joint owners have established a decommis-
sioning fund to cover decommissioning costs.  The estimated cost to decommis-
sion the plant is $489 million in current dollars.  Canal Electric's share of
this liability (approximately $17.2 million), less its share of the market
value of the assets held in a decommissioning trust (approximately $3.2
million), is approximately $14 million at December 31, 1998.

      (c) Price-Anderson Act

      Under the Price-Anderson Act (the Act), owners of nuclear power plants
have the benefit of approximately $9.7 billion of public liability coverage
which would compensate the public for valid bodily injury and property loss on
a no-fault basis in the event of an accident at a commercial nuclear power
plant.  Under the provisions of the Act, each nuclear reactor with an operat-
ing license can be assessed up to $88.1 million per nuclear incident with a
maximum assessment of $10 million per incident within one calendar year. 
Nuclear plant owners have initiated insurance programs designed to help cover
liability claims relating to property damage, decontamination, replacement
power and business interruption costs for participating utilities arising from
a nuclear incident.

      COM/Energy has an equity ownership interest in four nuclear generating
facilities as well as a 3.52% joint-ownership interest in Seabrook 1.  The
operators of these units maintain nuclear insurance coverage (on behalf of the
owners of the facilities) with Nuclear Electric Insurance Limited (NEIL II)
and the American Nuclear Insurers (ANI).  NEIL II provides $2.25 billion of
property, boiler, machinery and decontamination insurance coverage, including
accidental premature decommissioning insurance in the amount of the shortfall
<PAGE>
<PAGE 50>

                           COMMONWEALTH ENERGY SYSTEM

in the Decommissioning Trust Fund, in excess of the underlying $500 million
policy.  All companies insured with NEIL II are subject to retroactive
assessments if losses exceed the accumulated funds available.  ANI provides
$500 million of "all risk" property damage, boiler, machinery and decontamina-
tion insurance.  An additional $200 million of primary financial protection
coverage is provided for off-site bodily injury or property damage caused by a
nuclear incident.  ANI also provides secondary financial protection liability
insurance that currently provides $9.5 billion of retrospective insurance
premium benefits in accordance with the provisions of the Act.  Three of the
four units in which COM/Energy has an equity ownership interest have been
permanently shut down.  The Nuclear Regulatory Commission has approved each of
these units' requests to withdraw from participation in the secondary insur-
ance program.  Additional coverage ($200 million) provided by ANI includes
tort liability protection arising out of radiation injury claims by nuclear
workers and injury or property damage caused by the transportation or shipment
of nuclear materials or waste.

      Based on its various ownership interests in the five nuclear generating
facilities, COM/Energy's retrospective premium could be $600,000 annually or a
cumulative total of $5.3 million, exclusive of the effect of inflation
indexing (at five-year intervals) and a 5% surcharge ($2.9 million) in the
event that total public liability claims from a nuclear incident exceed the
funds available to pay such claims.

      (d)  Power Contracts

      COM/Energy has long-term contracts to purchase capacity from various
generating facilities.  Generally, these contracts are for fixed periods and
require payment of a demand charge for the capacity entitlement and an energy
charge to cover the cost of fuel.  Information relative to these contracts is
as follows:
                  Range of
                  Contract
                 Expiration     Entitlement                  Cost             
                   Dates         %       MW       1998       1997       1996  
                                                    (Dollars in thousands)
Type of Unit
Natural gas       2008-2017    (a)       212.0  $120,926   $127,580   $120,842
Nuclear           2004-2012    (b)        85.1    41,969     41,058     41,280
Waste-to-energy     2015       100        67.0    44,423     43,038     39,622
Hydro             2014-2023    100        23.9    11,359     10,952     12,537
  Total                                  388.0  $218,677   $222,628   $214,281

  (a) Includes contracts to purchase power from various non-utility generators
      with capacity entitlements ranging from 11.1% to 100%.

  (b) Commonwealth Electric has an 11% entitlement in the Pilgrim nuclear
      power plant that is expected to be sold by Boston Edison Company in 1999
      to Entergy Nuclear Generating Company.  In conjunction with this sale,
      Commonwealth Electric has reached an agreement to buy out of this
      contract, but will continue to buy power on a declining basis through
      2004.  Cambridge Electric has a 2.5% ownership interest in the Vermont
      Yankee nuclear power plant.  The estimated cost to decommission this
      plant is $406.7 million in current dollars.  COM/Energy's share of this
      liability (approximately $9.2 million), less its share of the market
      value of the assets held in a decommissioning trust (approximately $5.1
      million), is approximately $4 million at December 31, 1998.
<PAGE>
<PAGE 51>

                           COMMONWEALTH ENERGY SYSTEM

      Pertinent information with respect to life-of-the-unit contracts with
nuclear units that are no longer operating in which COM/Energy has an equity
ownership is as follows:

                                           Connecticut    Maine      Yankee
                                              Yankee      Yankee     Atomic
                                                (Dollars in thousands)

Equity Ownership (%)                            4.50       4.00        4.50
Plant Entitlement (%)                           4.50       3.59        4.50
Contract Expiration Date                        2007       2008        2000
Year of Shutdown                                1996       1997        1992
1996 Actual Cost ($)                           9,259      6,511       2,260
1997 Actual Cost ($)                           5,760      8,928       2,238
1998 Actual Cost ($)                           3,553      4,705       2,184
Decommissioning cost estimate (100%) ($)     465,693    403,418      81,699
COM/Energy's decommissioning cost ($)         20,956     14,483       3,676
Market value of assets (100%) ($)            260,641    212,664     148,464
COM/Energy's market value of assets ($)       11,729      7,635       6,681

      Based upon regulatory precedent, the operators of the Yankee units
believe they will be permitted to continue to collect from power purchasers -
(including COM/Energy companies) decommissioning costs, unrecovered plant
investment and other costs associated with the permanent closure of these
plants over the remaining period of each plant's operating license. 
COM/Energy does not believe that the ultimate outcome of the early closing of
these plants will have a material adverse effect on its operations and
believes that recovery of these FERC-approved costs would continue to be
allowed in its rates at the retail level.

      Costs pursuant to these power contracts are included in electricity
purchased for resale in the accompanying Consolidated Statements of Income and
are recoverable in revenues.

      The estimated aggregate obligations for capacity under the long-term
purchased power contracts and a life-of-the-unit contract from the one
remaining operating Yankee nuclear unit (Vermont Yankee) in effect for the
five years subsequent to 1998 is as follows:

                            Long-Term
                            Purchased     Equity Owned
                              Power       Nuclear Unit      Total
                                    (Dollars in thousands)

          1999              $208,479          $5,704      $214,183
          2000               205,695           5,318       211,013
          2001               211,151           5,710       216,861
          2002               216,715           5,876       222,591
          2003               215,387           5,621       221,008

      Due to changing conditions within the nuclear industry, it is possible
that the remaining operating nuclear plant in which COM/Energy has an equity
ownership interest could be shut down prior to the expiration of that unit's
operating license.

      The costs associated with these power contract obligations are a
significant component of COM/Energy's stranded costs that are being recovered
through a transition charge pursuant to DTE approval.

      (e) Acquisition

      On June 1, 1998, Advanced Energy Systems, Inc. (AES), a wholly-owned
subsidiary of the Parent, acquired for $146.3 million all of the issued and
outstanding shares of capital stock of Harvard University's Medical Area Total
<PAGE>
<PAGE 52>

                           COMMONWEALTH ENERGY SYSTEM

Energy Plant, Inc. subsidiary (MATEP) and all rights under customer contracts
owned by Harvard University.  MATEP's principal asset is a cogeneration plant
that provides heating, chilled water service and electricity to several
hospitals, medical research centers and teaching institutions in the 200-acre
Longwood Medical Area of Boston pursuant to the contracts that were assigned
to AES.  The purchase price was established through a sealed-bid auction
process and the transaction was ultimately financed with an equity contribu-
tion from the Parent to AES of approximately $40 million and the proceeds from
a permanent financing of $112.5 million in 23-year term notes at a rate of
6.924% with sinking fund payments scheduled to begin in 2003.  The notes are
secured by long-term contracts between MATEP and its customers.

      Results for MATEP are included in the accompanying consolidated finan-
cial statements from the date of acquisition.

      The acquisition was accounted for under the purchase method of account-
ing.  The purchase price was allocated based on the fair value of assets
acquired and resulted in the recognition of an intangible asset amounting to
approximately $31 million that is being amortized on a straight-line basis
over fifteen years.

      Based on unaudited data, the following pro forma summary presents the
consolidated results of operations as if the acquisition had occurred at the
beginning of the years presented:

                                      1998              1997          1996
                               (Dollars in thousands except per share amounts)

  Revenues                         $1,002,205       $1,101,462    $1,070,723

  Net Income Applicable to
      Common Shares                $   51,741       $   50,913    $   60,185

  Basic and Diluted Earnings
      per Common Share                  $2.40            $2.36         $2.80

      The pro forma results do not purport to be indicative of the results of
operations that actually would have resulted had the acquisition been made at
the beginning of the years presented, or of results that may occur in the
future.

      (f) Environmental Matters

      COM/Energy is subject to laws and regulations administered by federal,
state and local authorities relating to the quality of the environment.  These
laws and regulations affect, among other things, the siting and operation of
electric generating and transmission facilities and can require the installa-
tion of expensive air and water pollution control equipment.  These regula-
tions have had an impact on COM/Energy's operations in the past and will
continue to have an impact on future operations, capital costs and construc-
tion schedules of major facilities with the exception of electric generating
facilities since substantially all of COM/Energy's non-nuclear generating
assets were sold in 1998.  For additional environmental information, see
"Environmental Matters" in Management's Discussion and Analysis of Financial
Condition and Results of Operations.
<PAGE>
<PAGE 53>

                           COMMONWEALTH ENERGY SYSTEM

(4)   Income Taxes

      COM/Energy files a consolidated federal income tax return.  For finan-
cial reporting purposes, the Parent and its subsidiaries provide taxes on a
separate return basis.

      The following is a summary of the consolidated provisions for income
taxes:

                                                 1998       1997       1996
                                                    (Dollars in thousands)
      Federal
          Current                             $ 135,073    $24,396    $28,375
          Deferred                             (111,581)     2,612      2,784
          Investment tax credits, net            (3,723)    (1,278)    (1,285)
                                                 19,769     25,730     29,874
      State
          Current                                27,294      5,389      5,542
          Deferred                              (14,073)       316        890
                                                 13,221      5,705      6,432
                                                 32,990     31,435     36,306
      Amortization of regulatory liability
          relating to deferred income taxes        (460)      (386)      (159)
                                              $  32,530    $31,049    $36,147
      Federal and state income taxes
          charged to:
            Operating expense                 $  26,253    $31,040    $35,840
            Other (income) expense                6,277          9        307
                                              $  32,530    $31,049    $36,147

      The significant change in the current and deferred provisions for income
taxes in 1998 reflects the current tax related to the sale of COM/Energy's
non-nuclear generating assets and the related deferred tax benefit.

      Deferred tax liabilities and assets are determined based on the differ-
ence between the financial statement and tax bases of assets and liabilities
using enacted tax rates in effect in the year in which the differences are
expected to reverse.

      Accumulated deferred income taxes consisted of the following:

                                                   1998        1997
                                                 (Dollars in thousands)
      Liabilities
          Property-related                       $149,354    $198,183
          Transition costs                         17,966         -
          Power contract buy-out                    6,135       6,853
          Fuel charge stabilization                11,300      12,241
          Postretirement benefits plan              6,317       7,742
          All other                                19,033      16,847
                                                  210,105     241,866
      Assets
          Sale of generating assets               139,912         -
          Long-term power contracts                23,358         -
          Investment tax credits                   16,332      16,058
          Pension plan                              9,512       6,409
          Regulatory liability                      5,671       6,103
          Personnel reduction program               1,654       1,540
          All other                                22,688      20,960
                                                  219,127      51,070
      Accumulated deferred income taxes
          (deferred tax asset), net              $ (9,022)   $190,796

<PAGE>
<PAGE 54>

                           COMMONWEALTH ENERGY SYSTEM

      The net deferred tax asset for 1998 is included in other deferred
charges in the accompanying Consolidated Balance Sheets.  The net deferred
income tax liability for 1997 includes a current deferred tax liability of
$14,442,000 which is included in accrued income taxes.

      The total income tax provision set forth previously represents 37% in
1998 and 38% in 1997 and 1996 of income before such taxes.  The following
table reconciles the statutory federal income tax rate to these percentages:

                                                    1998      1997      1996
                                                     (Dollars in thousands)

      Federal statutory rate                            35%       35%       35%

      Federal income tax expense
         at statutory levels                       $30,427   $28,332   $33,363
      Increase (Decrease) from statutory levels:
        State tax net of federal tax benefit         8,594     3,708     4,181
        Tax versus book depreciation                 1,492     1,714     1,553
        Amortization of investment tax credits      (3,723)   (1,278)   (1,285)
        Reversals of capitalized expenses             (672)     (654)     (654)
        Dividend received deduction                   (401)     (366)     (381)
        Amortization of excess deferred reserves    (2,984)     (386)     (159)
        Other                                         (203)      (21)     (471)
                                                   $32,530   $31,049   $36,147

        Effective federal income tax rate               37%       38%       38%

(5)   Employee Benefit Plans

      (a) Pension

      COM/Energy has a noncontributory pension plan covering substantially all
regular employees who have attained the age of 21 and have completed a year of
service.  Pension benefits are based on an employee's years of service and
compensation.  COM/Energy makes monthly contributions to the plan consistent
with the funding requirements of the Employee Retirement Income Security Act
of 1974.

      The following tables set forth the change in the pension benefit
obligation and plan assets as well as the plan's funded status reconciled to
the amount included in the financial statements:

                                                   1998          1997
                                                 (Dollars in thousands)
      Change in benefit obligation
        Obligation at beginning of year          $ 409,039     $ 340,850
        Service cost                                 7,431         7,565
        Interest cost                               28,266        24,824
        Actuarial loss                              39,799        57,936
        Benefits paid                              (25,520)      (22,136)
        Obligation at end of year                $ 459,015     $ 409,039

                                                   1998          1997
                                                 (Dollars in thousands)

      Change in plan assets
        Fair value of plan assets at
          beginning of year                      $ 390,625     $ 343,884
        Actual return on plan assets                30,228        61,095
        Employer contributions                       6,048         7,782
        Benefits paid                              (25,520)      (22,136)
        Fair value of plan assets at
          end of year                            $ 401,381     $ 390,625
<PAGE>
<PAGE 55>

                           COMMONWEALTH ENERGY SYSTEM

                                                   1998          1997
                                                 (Dollars in thousands)

      Funded status                              $ (57,634)    $ (18,414)
      Unrecognized transition obligation             4,822         6,429
      Unrecognized prior service cost               10,487        11,922
      Unrecognized net actuarial (gain) loss        18,994       (20,480)
      Prepaid (accrued) benefit cost             $ (23,331)    $ (20,543)

      Weighted-average assumptions as of December 31 were as follows:

                                                   1998          1997

      Discount rate                                6.50%         7.00%
      Expected return on plan assets               9.00          8.75
      Rate of increase in future compensation      3.75          3.75

      Plan assets consist primarily of fixed-income and equity securities.
Fluctuations in the fair market value of plan assets will affect pension
expense in future years.

      Components of net periodic pension cost were as follows:

                                              1998        1997        1996
                                                 (Dollars in thousands)

      Service cost                          $  7,431    $  7,565    $  7,663
      Interest cost                           28,266      24,824      24,462
      Expected return on plan assets         (29,903)    (26,596)    (24,483)
      Amortization of transition
        obligation                             1,607       1,607       1,607
      Amortization of prior service cost       1,435       1,435       1,435
        Total                                  8,836       8,835      10,684
      Less: Amounts capitalized
            and deferred                       2,112       3,017       2,203
        Net periodic pension cost           $  6,724    $  5,818    $  8,481

      The net periodic pension cost reflects the use of the projected unit
credit method which is also the actuarial cost method used in determining
future funding of the plan.  Commonwealth Electric and Cambridge Electric, in
accordance with current ratemaking, are deferring the difference between the
pension contribution which is reflected in base rates, and pension expense.

      (b)  Other Postretirement Benefits

      Certain employees are eligible for postretirement benefits if they meet
specific requirements.  These benefits could include health and life insurance
coverage and reimbursement of Medicare Part B premiums.  Under certain
circumstances, eligible employees are required to make contributions for
postretirement benefits.

      To fund its postretirement benefits, COM/Energy makes contributions to
various voluntary employees' beneficiary association trusts that were estab-
lished pursuant to section 501(c)(9) of the Internal Revenue Code (the Code). 
COM/Energy also makes contributions to a subaccount of its pension plan
pursuant to section 401(h) of the Code to fund a portion of its postretirement
benefit obligation.

      The following tables set forth the change in the postretirement benefit
obligation and plan assets as well as the plan's funded status reconciled to
the amount included in the financial statements:
<PAGE>
<PAGE 56>

                           COMMONWEALTH ENERGY SYSTEM

                                                   1998          1997
                                                 (Dollars in thousands)
      Change in benefit obligation
        Obligation at beginning of year          $ 149,364     $ 125,647
        Service cost                                 2,064         1,919
        Interest cost                               10,087         9,223
        Actuarial loss                               8,447        18,620
        Participant contributions                      134            82
        Benefits paid                               (8,429)       (6,127)
        Obligation at end of year                $ 161,667     $ 149,364

                                                   1998          1997
                                                 (Dollars in thousands)
      Change in plan assets
        Fair value of plan assets at
          beginning of year                      $  61,632     $  45,967
        Actual return on plan assets                 5,039         9,483
        Employer contributions                      11,786        12,227
        Participant contributions                      134            82
        Benefits paid                               (8,429)       (6,127)
        Fair value of plan assets at
         end of year                             $  70,162     $  61,632

      Funded status                              $ (91,505)    $ (87,732)
      Unrecognized transition obligation            74,697        80,033
      Unrecognized net actuarial loss               16,808         7,699
      Prepaid (accrued) benefit cost             $     -       $     -  

      Weighted-average assumptions as of December 31 were as follows:

                                                    1998          1997

      Discount rate                                 6.50%         7.00%
      Expected return on plan assets                9.00          8.75
      Rate of increase in future compensation       3.75          3.75

      For measurement purposes, a 6.50% annual rate of increase in the per
capita cost of covered medical claims was assumed for 1999.  The rates were
assumed to decrease gradually to 4.5% for 2007 and remain at that level
thereafter.  Dental claims and Medicare Part B premiums are expected to
increase at 4.5% and 3.1%, respectively.

      Plan assets consist primarily of fixed-income and equity securities.
Fluctuations in the fair market value of plan assets will affect the periodic
postretirement benefit cost in future years.

      Components of net periodic postretirement benefit cost were as follows:

                                                    1998     1997      1996
                                                   (Dollars in thousands)

      Service cost                                $ 2,064  $ 1,919  $ 2,211
      Interest cost                                10,087    9,223    9,352
      Expected return on plan assets               (5,701)  (4,247)  (3,138)
      Amortization of transition obligation         5,336    5,336    5,336
         Total                                     11,786   12,231   13,761
      Add: Net amortization of deferrals            3,026    1,119       64
      Less: Amounts capitalized and deferred        1,479    1,585    1,678
         Net periodic postretirement
         benefit cost                             $13,333  $11,765  $12,147
<PAGE>
<PAGE 57>

                           COMMONWEALTH ENERGY SYSTEM

      Assumed healthcare cost trend rates have a significant effect on the
amounts reported for health care plans.  A one-percentage point change in
assumed healthcare cost trend rates would have the following effects:

                                                   One-Percentage-Point 
                                                  Increase     Decrease
                                                  (Dollars in thousands)

      Effect on total of service and
         interest cost components                 $ 1,730      $ (1,430)
      Effect on postretirement
         benefit obligation                       $19,786      $(18,638)

      On April 15, 1997, the DTE issued an accounting ruling allowing Common-
wealth Gas Company to include postretirement benefits costs in cost-of-service
and to amortize the deferred balance of $10.5 million at March 31, 1997
associated with these costs over a period not to exceed ten years that began
in April 1997.

      (c) Savings Plan

      COM/Energy has an Employees Savings Plan that provides for contributions
equal to contributions by eligible employees of up to four percent of each
employee's compensation rate and up to five percent for those employees no
longer eligible for postretirement health benefits.  The total COM/Energy
contribution was $3,688,000 in 1998, $4,173,000 in 1997 and $4,053,000 in
1996.

      (d) Long-Term Incentive Compensation Plan

      The Long-Term Incentive Compensation Plan (the Plan), approved by
shareholders in 1994, was established to advance the interests of the Parent
by providing long-term financial incentives, primarily common shares of the
Parent, to selected key employees of COM/Energy for achieving specified
objectives.  The Parent, in encouraging such share ownership, seeks to
attract, retain and motivate employees who hold positions of significant
responsibility.  Eligible employees are chosen by the Executive Compensation
Committee of the Board of Trustees and are presented grant share awards which
mature after a three-year vesting period.  Shares are issued to participants
in March following the close of the third plan year.  All shares are subject
to forfeiture if specified performance measures are not met.  During the
applicable vesting period, participants have all the voting, dividend and
other related rights of a record holder except that the shares are nontrans-
ferable.  Common shares granted under the Plan cannot exceed 1% of the total
shares issued and outstanding.  In 1997, 31,606 common shares, valued at
approximately $707,000, were granted to COM/Energy officers.  Compensation
costs of approximately $270,000 and $231,000 were recorded in 1998 and 1997,
respectively, with the remainder to be recognized over the remaining vesting
period of 14 months.  Common shares granted pursuant to the Plan had no
material impact on earnings per share.

(6)   Interim Financing and Long-Term Debt

      (a)  Notes Payable to Banks

      COM/Energy companies maintain both committed and uncommitted lines of
credit for the short-term financing of their construction programs and other
corporate purposes.  As of December 31, 1998, COM/Energy companies had $122
million of committed lines of credit that will expire at varying intervals in
1999.  These lines are normally renewed upon expiration and require annual
fees of up to .1875% of the individual line.  At December 31, 1998, the
uncommitted lines of credit totaled $10 million.  Interest rates on the
outstanding borrowings generally are at an adjusted money market rate and
averaged 5.7% and 5.8% in 1998 and 1997, respectively.  Notes payable to banks
totaled $2,000,000 and $94,075,000 at December 31, 1998 and 1997, respective-
ly.
<PAGE>
<PAGE 58>

                           COMMONWEALTH ENERGY SYSTEM

      (b)  Long-term Debt Maturities and Retirements

      Under terms of various indentures and loan agreements, the Parent and
certain subsidiary companies are required to make periodic sinking fund
payments for retirement of outstanding long-term debt.  These payments and
balances of maturing debt issues for the five years subsequent to 1998 are as
follows:

                    Sinking Funds    Maturing Debt Issues
      Year          Subsidiaries     Parent  Subsidiaries      Total
                                   (Dollars in thousands)

      1999              $7,303       $30,000      $19,000     $56,303
      2000               7,303        20,000          -        27,303
      2001               8,660           -          3,500      12,160
      2002               5,010           -         32,000      37,010
      2003               4,910           -         15,000      19,910

(7)   Redeemable Preferred Shares

      Each series of the Parent's preferred shares was issued at par value,
$100 per share, and is subject to periodic, mandatory sinking fund payments.
The Parent can make additional voluntary redemptions, not exceeding the
required redemption, at par, on a non-cumulative basis, on each sinking fund
date.

      Preferred shares may also be called for redemption, in whole or in
part, in excess of the required and voluntary sinking fund redemptions.  The
obligation to make mandatory redemptions is cumulative and the Parent is not
allowed to pay dividends to common shareholders or make optional sinking fund
payments if mandatory redemptions are in arrears.  Details of redemptions for
each series are contained in the following table:

                                    Sinking Funds           Optional
                   Dividend           1999-2003            Redemption
                     Rate      Mandatory      Optional     Call Prices
                               (Dollars in thousands)

      Series A      4.80%        $120           $120          $102
      Series B      8.10          160            160           101
      Series C      7.75          540            540           101

      Preferred shareholders have no voting rights except in the event that
six full quarterly dividends have not been paid.  In this circumstance, the
preferred shareholders are entitled, voting as a class, to elect two of the
nine Trustees of the Parent.

      The preference of these shares in involuntary liquidation is equal to
par value.  The shares are of equal rank and are entitled to cumulative
dividends at the annual rate established for each series.  No dividend can be
declared on any series unless proportionate dividends are concurrently
declared on the other outstanding series and in the event that dividend
payments are in arrears, the Parent may not redeem any shares unless all
shares of all preferred series are redeemed.

      On February 12, 1999, the holders of each series of preferred shares
were notified that the Parent will redeem each series in full effective April
1, 1999.
<PAGE>
<PAGE 59>

                           COMMONWEALTH ENERGY SYSTEM

(8)   Disclosures About Fair Value of Financial Instruments

      The fair value of certain financial instruments included in the accom-
panying Consolidated Balance Sheets as of December 31, 1998 and 1997 are as
follows:

                                   1998                   1997   
                          Carrying       Fair      Carrying     Fair  
                            Value       Value        Value     Value  
                                      (Dollars in thousands)

      Long-term debt       $441,905   $480,937     $390,964  $444,970
      Preferred shares       12,200     14,848       13,020    14,708

      The carrying amount of cash and notes payable to banks approximates the
fair value because of the short maturity of these financial instruments.

      The estimated fair value of long-term debt and preferred stock are based
on quoted market prices of the same or similar issues or on the current rates
offered for debt or preferred shares with the same remaining maturity.  The
fair values shown above do not purport to represent the amounts at which those
obligations would be settled.

(9)   Lease Obligations

      COM/Energy companies lease property, transmission facilities and
equipment under agreements, some of which are capital leases. Several subsid-
iaries renegotiate certain lease agreements annually.  These new agreements
are for a term of one year and are renewable monthly thereafter.  COM/Energy
Services Company has agreements in effect for office furniture, computer and
transportation equipment.  Generally, these agreements require the lessee to
pay related taxes, maintenance and other costs of operation.  Leases currently
in effect contain no provisions which prohibit COM/Energy companies from
entering into future lease agreements or obligations.

      The following is a breakdown, by major class, of property under capital
lease at December 31:
                                                          1998       1997
                                                      (Dollars in thousands)

      Transmission facilities                           $11,119    $11,801
      Office furniture, computer equipment and other      1,271      1,753
                                                         12,390     13,554
      Less: Accumulated amortization                         68         53
                                                        $12,322    $13,501

      Future minimum lease payments, by period and in the aggregate, of
capital leases and non cancelable operating leases consisted of the following
at December 31, 1998:
                                                       Capital    Operating
                                                       Leases       Leases 
                                                      (Dollars in thousands)

      1999                                             $ 2,594     $ 9,974
      2000                                               2,141       4,881
      2001                                               1,643       3,374
      2002                                               1,582       3,374
      2003                                               1,520       3,025
      Beyond 2003                                       15,422       8,394
      Total future minimum lease payments               24,902     $33,022
      Less: Estimated interest element
            included therein                            12,580
      Estimated present value of future minimum
            lease payments                             $12,322
<PAGE>
<PAGE 60>

                           COMMONWEALTH ENERGY SYSTEM

      Total rent expense for all operating leases, except those with terms of
a month or less, amounted to $11,471,000 in 1998, $11,181,000 in 1997 and
$12,922,000 in 1996.  There were no contingent rentals and no sublease rentals
for the years 1998, 1997 and 1996.

(10)  Dividend Restriction

      At December 31, 1998, approximately $110,799,000 of consolidated
retained earnings was restricted against the payment of cash dividends by
terms of indentures and note agreements securing long-term debt.

(11)  Operating Segment Information

      COM/Energy's operations are classified into four reportable segments:
utility operations, district heating and cooling, non-regulated energy-related
services, and real estate operations.

      COM/Energy's four regulated operating public utility companies provide
electricity and natural gas services to approximately 612,000 retail customers
in communities located in central, eastern and southeastern Massachusetts and
sold electricity at wholesale to several other New England utilities. 
District heating and cooling operations include a steam distribution company,
and a company that operates a total energy plant acquired June 1, 1998 that
provides electricity, steam, and chilled water services in Boston's Longwood
Medical Area.  Energy-related services represent subsidiaries that operate
liquefied natural gas facilities, marketed electricity and natural gas to high
volume customers in the Northeast, and operate an energy information technolo-
gy company.  Real estate operations consist of five real estate trusts that
have been engaged in the development, sale and lease of properties.

      The accounting policies used to develop segment information correspond
to those described in Note 2, "Significant Accounting Policies."  COM/Energy
evaluates performance based on earnings from operations before income taxes
and nonrecurring gains and losses.  The Parent accounts for inter-segment
sales and transfers at current market prices.  Profits on inter-segment sales
are not eliminated.

                                            1998           1997          1996
                                                 (Dollars in thousands)
Revenues from unaffiliated customers
      Utility operations                  $  901,729   $1,022,485   $  991,545
      District heating and cooling            47,940       16,879       17,242
      Energy-related services                 28,501          125          -
      Real estate operations                   1,945        2,255        2,118
                                          $  980,115   $1,041,744   $1,010,905

Inter-segment revenues
      Utility operations                  $  112,893   $  128,636   $  109,378
      Energy-related services                 61,537       47,207       46,514
                                          $  174,430   $  175,843   $  155,892

Income tax expense
      Utility operations                  $   30,284   $   31,820   $   35,377
      District heating and cooling             1,062          425        1,020
      Energy-related services                 (3,772)      (1,679)      (1,063)
      Real estate operations                  (1,321)         474          506
                                          $   26,253   $   31,040   $   35,840

Depreciation and amortization expense
      Utility operations                  $   69,318   $   63,642   $   61,587
      District heating and cooling             3,156          298          292
      Energy-related services                  1,636        1,706        1,452
                                          $   74,110   $   65,646   $   63,331
<PAGE>
<PAGE 61>

                           COMMONWEALTH ENERGY SYSTEM

Interest income
      Utility operations                  $    1,705   $    1,681   $    1,721
      District heating and cooling                65           40           22
      Real estate operations                     636          337          237
                                          $    2,406   $    2,058   $    1,980

Interest expense
      Utility operations                  $   38,002   $   37,055   $   38,398
      District heating and cooling             3,165            4          -
      Energy-related services                  5,681        3,290        3,843
      Real estate operations                      61            1          127
                                          $   46,909   $   40,350   $   42,368

Net income (loss)
      Utility operations                  $   50,569   $   52,410   $   58,088
      District heating and cooling             1,956          361        1,583
      Energy-related services                 (7,594)      (3,214)        (700)
      Real estate operations                   9,473          344          204
                                          $   54,404   $   49,901   $   59,175

Assets
      Utility operations                  $1,617,469   $1,434,424   $1,392,302
      District heating and cooling           101,149        8,014        7,230
      Energy-related services                 38,761       36,322       23,236
      Real estate operations                   5,509        6,290        6,187
                                          $1,762,888   $1,485,050   $1,428,955

Capital Expenditures (including AFUDC)
      Utility operations                  $   57,283   $   53,221   $   51,997
      District heating and cooling             2,124        1,021          288
      Energy-related services                  1,541        3,265          769
      Real estate operations                     -             51          131
                                          $   60,948   $   57,558   $   53,185

Significant nonrecurring items (after-tax)
   Personnel Reduction Program
      Utility operations                  $      -     $  (10,738)  $      -  

   Gain from Sale of Real Estate
      Utility operations                  $    1,292   $      -     $      402
      Real estate operations                   9,497          -            -  
                                          $   10,789   $      -     $      402

Significant noncash items
   Deferred income taxes and ITC, net
      Utility operations                  $ (131,534)  $    1,798   $    1,972
      District heating and cooling               905          (11)           8
      Energy-related services                    169       (1,305)         (63)
      Real estate operations                     623          782          313
                                          $ (129,837)  $    1,264   $    2,230

   Earnings of Corporate Joint Ventures
      Utility operations                  $   (1,636)  $   (1,348)  $   (1,557)

Investment in equity-method investees
      Utility operations                  $   13,219   $   13,471   $   13,395
      District heating and cooling                12          296          -  
      Energy-related services                    800          -            -  
                                          $   14,031   $   13,767   $   13,395

      All segment amounts reported above correspond to items reported in the
consolidated financial statements and are consistent with the presentation
adopted in internal management reports.

<PAGE>
<PAGE 62>

                           COMMONWEALTH ENERGY SYSTEM

                                    PART III.

Item 10.   Trustees and Executive Officers of the Registrant

a. Trustees of the Registrant:

     Three Trustees will be elected at the Annual Meeting of Shareholders to
hold office for the ensuing three years in accordance with the Declaration of
Trust which provides for staggered terms of Trustees of three years each.  The
three Trustees elected at this meeting will hold office for a three-year term
and until the election and qualification of their respective successors. 
Under the terms of the Declaration of Trust, Trustees are required to be
elected by a plurality vote of the Shareholders.

     The Shares represented by the enclosed form of proxy will be voted, and
the persons named in such form of proxy will, unless otherwise directed in the
proxy, vote Shares represented by proxies received for the election of the
following nominees:
                                 Peter H. Cressy
                               William J. O'Brien
                                Russell D. Wright

     It is not contemplated that any of the three nominees will be unable to
serve.  Should any of the nominees be unable to serve, your proxy will be
voted for the election of a nominee acceptable to the remaining Trustees.

                  Information Concerning Nominees and Trustees
                                                                  Common Shares
                                                                   Beneficially
                                                Year First         Owned as of
                                                 Became a            March 1,
Name, Principal Occupation and Term of Office    Trustee    Age       1999     

(A) KEVIN C. BRYANT, General Manager -
(D)   BankBoston - Europe
      TERM EXPIRES IN 2000.................       (1997)     38         484

(C) SHELDON A. BUCKLER, Chairman of the Board
      of Commonwealth Energy System; Retired
      Vice Chairman of the Board, Polaroid 
      Corporation, Cambridge, Massachusetts; 
      Director, Aseco Corp.; Lord Corporation;
      Nashua Corporation and Parlex Corp. 
      TERM EXPIRES IN 2001.................       (1991)     67       6,821

(A) PETER H. CRESSY, Chancellor, University of
(E)   Massachusetts Dartmouth, North Dartmouth,
      Massachusetts; Retired Rear Admiral,
      United States Navy
      TERM EXPIRES IN 1999 (NOMINEE).......       (1994)     57         637

(A) BETTY L. FRANCIS, Executive Vice President
(D)   and Chief Credit Officer, HomeSide
      Lending, Inc., Jacksonville, Florida
      TERM EXPIRES IN 2001.................       (1991)     52         685
<PAGE>
<PAGE 63>

                           COMMONWEALTH ENERGY SYSTEM

            Information Concerning Nominees and Trustees (Continued)

                                                                  Common Shares
                                                                   Beneficially
                                                Year First          Owned as of
                                                 Became a            March 1,
Name, Principal Occupation and Term of Office    Trustee    Age        1999    

(C) FRANKLIN M. HUNDLEY, Of Counsel,
(D)   Rich, May, Bilodeau & Flaherty,
      P.C., Boston, Massachusetts (Attorneys);
      Chairman of the Board and a Trustee, 
      Berkshire Energy Resources
      TERM EXPIRES IN 2000................        (1985)     64       5,389

(B) WILLIAM J. O'BRIEN, Partner, Centre For
(C)   Generative Leadership L.L.C., Hamilton,
      Massachusetts (Consulting); Retired
      President and CEO, The Hanover Insurance
      Company
      TERM EXPIRES IN 1999 (NOMINEE)........      (1994)     66       5,785

(B) MICHAEL C. RUETTGERS, President, Chief
(E)   Executive Officer and a Director, EMC
      Corporation, Hopkinton, Massachusetts
      (Data storage technology); Director,
      EG&G Inc.
      TERM EXPIRES IN 2001..................      (1995)     56       1,280

(B) GERALD L. WILSON, Vannevar Bush Professor of
(E)   Engineering, Massachusetts Institute of
      Technology, Cambridge, Massachusetts;
      Director, Analogics Corp. and Aseco Corp.
      TERM EXPIRES IN 2000..................      (1985)     59       1,975

    RUSSELL D. WRIGHT, President and Chief
      Executive Officer of Commonwealth Energy
      System and Chairman and a Director of 
      its subsidiary companies
      TERM EXPIRES IN 1999 (NOMINEE)........      (1998)     52      15,561

     Each of the persons named above has held his or her present position (or
another executive position with the same employer) for more than the past five
years.

     Each Trustee, including nominees, owned beneficially less than one-third
of one percent of the outstanding Common Shares.

(A)  Member of Audit Committee.
(B)  Member of Executive Compensation Committee.
(C)  Member of Nominating Committee.
(D)  Member of Benefit Review Committee.
(E)  Member of Strategic Planning Committee.
<PAGE>
<PAGE 64>

                           COMMONWEALTH ENERGY SYSTEM

b.    Executive Officers of the Registrant:
                                                                      Age at
                                                                     December
Name of Officer         Position and Business Experience             31, 1998


Russell D. Wright       President, Chief Executive Officer               52
                        and Trustee of the Parent and Chairman
                        and Chief Executive Officer of its
                        principal subsidiary companies effective
                        September 1, 1998; Vice Chairman and
                        Chief Executive Officer of Utility
                        Operations effective March 1, 1998;
                        President and Chief Operating Officer
                        of Commonwealth Gas Company* effective
                        February 6, 1997 and President and Chief
                        Operating Officer of Cambridge Electric
                        Light Company*, Canal Electric Company*,
                        COM/Energy Steam Company*, and
                        Commonwealth Electric Company* effective
                        March 1, 1993; Financial Vice President
                        and Treasurer of the Parent and Financial
                        Vice President of its subsidiary companies
                        from 1987 to 1993.

Deborah A. McLaughlin   President and Chief Operating Officer of         40
                        Utility Operations effective March 1, 1998;
                        Vice President of Customer Service for
                        Utility Operations from 1997 to 1998;
                        Vice President of Customer Service for
                        Cambridge Electric Light Company*, Canal
                        Electric Company*, COM/Energy Steam
                        Company*, and Commonwealth Electric
                        Company* from 1993 to 1997; Audit Manager
                        for COM/Energy Services Company* from
                        1987 to 1993.

James D. Rappoli        Financial Vice President and Treasurer of        47
                        the Parent and its subsidiary companies
                        effective March 1, 1993; Treasurer of Parent
                        subsidiary companies from 1990 to 1993;
                        Assistant Treasurer of Parent subsidiary
                        companies from 1989 to 1990.

Michael P. Sullivan     Vice President, Secretary, and                   50
                        General Counsel of the Parent
                        and subsidiary companies (effective
                        June 1993); Vice President, Secretary,
                        and General Attorney of the Parent and
                        subsidiary companies since 1981.


    * Subsidiary of the Parent.
<PAGE>
<PAGE 65>


                           COMMONWEALTH ENERGY SYSTEM

b. Executive Officers of the Registrant (Continued):
                                                                      Age at
                                                                     December
Name of Officer         Position and Business Experience             31, 1998


John R. Williams        Vice President of Corporate Services of          55
                        COM/Energy Services Company* (effective
                        December 2, 1996); Vice President of
                        Operations at Commonwealth Electric*
                        from 1993 to 1996; Vice President of
                        Human Resources and Communications at
                        COM/Energy Services Company* from 1990 to
                        1993; Vice President of Corporate Human
                        Resources at COM/Energy Services Company*
                        from 1987 to 1990.

    * Subsidiary of the Parent.

    The term of office for Parent officers expires on the date of the next
Annual Organizational Meeting.

    There are no family relationships between any trustee and executive
officer and any other trustee or executive of the Parent.  There were no
arrangements or understandings between any officer or trustee and any other
person pursuant to which he was or is to be selected as an officer, trustee or
nominee.

    There have been no events under any bankruptcy act, no criminal pro-
ceedings and no judgments or injunctions material to the evaluation of the
ability and integrity of any trustee or executive officer during the past five
years.

<PAGE>
<PAGE 66>
                           COMMONWEALTH ENERGY SYSTEM

Item 11.   Executive Compensation

     The following table shows compensation paid by the Parent and its
subsidiaries to the Parent's President and Chief Executive Officer and the
four other highest paid Executive Officers of the Parent whose total compensa-
tion in 1998 exceeded $100,000.
<TABLE>
<CAPTION>
                                                       Long-Term Compensation   
                        Annual Compensation         Awards       Payouts
                                                                          Long-
                                                                          Term
                                                                 Options  Incen-
                                                 Other   Restr-  /Stock   tive   All
                                                 Annual  icted   Apprec-  Plan  Other
<S>                                              Compen- Stock   iation  (LTIP) Compen-
 Name and                     Salary             sation  Awards  Rights  Payouts sation
 Principal Position     Year    (1)     Bonus      (2)    (3)    (SARS)            (4) 
                        <C>   <C>       <C>      <C>   <C>       <C>     <C>    <C>
Russell D. Wright(5)    1998 $323,434 $155,011    -    $120,000  -    $   -    $12,791
 President and Chief    1997  276,333   118,825    -        -     -     100,800  10,977
 Executive Officer of   1996  250,000    97,427    -     100,000  -        -     10,020
 the Parent and 
 Chairman of its 
 subsidiary
 companies

William G. Poist (5)    1998  267,867    40,000    -        -     -       -      10,734
 President and Chief    1997  388,200   160,290    -        -     -    134,900   15,528
 Executive Officer of   1996  380,000   142,142    -     160,000  -        -     15,204
 the Parent and 
 Chairman of its 
 subsidiary
 companies

Deborah A. McLaughlin   1998  207,667   110,943    -      48,000  -        -       9,758
 President and Chief    1997  142,500    52,924    -        -     -      46,080    6,294
 Operating Officer of   1996  125,831    41,534    -      40,000  -        -       7,062
 Utility Operations

James D. Rappoli        1998  206,667   81,223    -      68,000  -        -      8,280
  Financial Vice        1997  194,967   75,370    -        -     -      53,040   7,797
  President and         1996  178,167   60,740    -      54,800  -        -      7,126
  Treasurer of the
  Parent and its
  subsidiary companies

Michael P. Sullivan     1998  182,133   73,791    -      62,000  -        -      7,284
  Vice President,       1997  173,667   66,154    -        -     -      48,360   6,944
  Secretary and General 1996  161,666   55,121    -      54,000  -        -      6,229
  Counsel of the Parent
  and its subsidiary
  companies
<FN>
(1)   The amounts in this column represent the aggregate total of cash
      compensation received and compensation deferred by the
      above-named individuals.  Compensation is deferred pursuant to
      the provisions of the Employees Savings Plan of Commonwealth
      Energy System and Subsidiary Companies and the Executive Salary
      Continuation and Excess Benefit Plan for Employees of Common-
      wealth Energy System and Subsidiary Companies.
<PAGE>
<PAGE 67>
                           COMMONWEALTH ENERGY SYSTEM

(2)   The dollar value of perquisites and other personal benefits,
      securities or property totaling either $50,000 or 10% of total
      annual salary and bonus, together with various other earnings,
      amounts reimbursed for the payment of taxes and the dollar value
      of any stock discounts not generally available are required to be
      disclosed in this column.  In 1998, there were no such perqui-
      sites, earnings, reimbursements or discounts paid or made.

(3)   The amounts in this column represent the value of the restricted
      stock award made in 1999 which was calculated by multiplying the
      average closing market price of the Parent's Common Shares at the
      time of the grant by the number of Common Shares awarded.  The
      restrictions on these shares shall lapse three years from the
      date of grant provided that the individual is still in the employ
      of the Parent.  Dividends are paid on the restricted Common
      Shares to the same extent as they are paid on the Parent's Common
      Shares. The aggregate number of restricted Common Share holdings
      for the above-named Executive Officers as of March 1, 1999 is
      24,995 Common Shares, having an aggregate value of $910,755.

(4)   The amounts in this column represent the aggregate contributions or
      account credits made by the Parent and certain subsidiary companies
      during 1998 on behalf of the above-named individuals to the Employees
      Savings Plan of Commonwealth Energy System and Subsidiary Companies and
      the Executive Salary Continuation and Excess Benefit Plan for Employees
      of Commonwealth Energy System and Subsidiary Companies.  The Employees
      Savings Plan of Commonwealth Energy System and Subsidiary Companies is
      a defined contribution plan.  The Plan incorporates salary deferral
      provisions pursuant to Section 401(k) of the Internal Revenue Code for
      all employees who have elected to participate on that basis.  The
      Executive Salary Continuation and Excess Benefit Plan for Employees of
      Commonwealth Energy System and Subsidiary Companies is a defined
      contribution/defined benefit plan.  Unlike the Employees Savings Plan,
      this Plan is not a qualified plan under Section 401(a) of the Internal
      Revenue Code.  The Plan was established to provide an additional
      benefit to eligible participants in the Employees Savings Plan whose
      benefit under that Plan would be curtailed by limits in effect under
      the Internal Revenue Code for qualified plans.  Of the amounts set
      forth in the "All Other Compensation" column, $2,500, $6,399, $2,500,
      $2,500 and $2,499 represent the contributions made on behalf of Mr.
      Wright, Mr. Poist, Ms. McLaughlin, Mr. Rappoli and Mr. Sullivan,
      respectively, by the Employees Savings Plan. Amounts credited to the
      accounts of Mr. Wright, Mr. Poist, Ms. McLaughlin, Mr. Rappoli and
      Mr. Sullivan by the Executive Salary Continuation and Excess Benefit
      Plan in 1998 equaled $10,291, $4,335, $7,258, $5,780 and $4,785,
      respectively.

(5)   William G. Poist retired as President and Chief Executive Officer of
      the Parent on September 1, 1998 and Russell D. Wright was elected as
      his successor on September 1, 1998.
</TABLE>
<PAGE>
<PAGE 68>
                           COMMONWEALTH ENERGY SYSTEM

                                  PENSION PLAN

          The following table shows annual retirement benefits payable to
employees, including Executive Officers, upon retirement at age 65, in various
compensation and years of service classifications, assuming the election of a
retirement allowance payable as a life annuity from the Pension Plan for
Employees of Commonwealth Energy System and Subsidiary Companies and
the Executive Salary Continuation and Excess Benefit Plan for Employees of
Commonwealth Energy System and Subsidiary Companies, as of December 31, 1998.
<TABLE>
<CAPTION>
    Highest Annual
  Consecutive 3-Year
    Average Base
    Salary of Last               Annual Benefit for Years of Service
      10 Years         10 Years   15 Years   20 Years   25 Years   30 Years   35 Years
<S>                    <C>        <C>        <C>        <C>        <C>        <C>
    $ 90,000 ....      $ 15,621   $ 23,431   $ 31,241   $ 39,052   $ 46,862   $ 50,922
     120,000 ....        21,121     31,681     42,241     52,802     63,362     68,922
     150,000 ....        26,621     39,931     53,241     66,552     79,862     86,922
     180,000 ....        32,121     48,181     64,241     80,302     96,362    104,922
     210,000 ....        37,621     56,431     75,241     94,052    112,862    122,922
     240,000 ....        43,121     64,681     86,241    107,802    129,362    140,922
     270,000 ....        48,621     72,931     97,241    121,552    145,862    158,922
     300,000 ....        54,121     81,181    108,241    135,302    162,362    176,922
     330,000 ....        59,621     89,431    119,241    149,052    178,862    194,922
     360,000 ....        65,121     97,681    130,241    162,802    195,362    212,922
     390,000 ....        70,621    105,931    141,241    176,552    211,862    230,922
     420,000 ....        76,121    114,181    152,241    190,302    228,362    248,922
     450,000 ....        81,621    122,431    163,241    204,052    244,862    266,922
</TABLE>
      With regard to the annual benefit to be paid under the Pension Plan,
      federal law places certain limits on the amount of benefits which can be
      paid from qualified pension plans.  Payments made by the Parent in
      excess of the applicable limitations are made pursuant to the terms of
      the Executive Salary Continuation and Excess Benefit Plan for Employees
      of Commonwealth Energy System and Subsidiary Companies.  For 1998, the
      maximum annual compensation limit under the Pension Plan for Employees
      of Commonwealth Energy System and Subsidiary Companies was $160,000, and
      the maximum annual benefit under that Plan was $130,000.

     The Pension Plan is a non-contributory defined benefit plan.  The Plan is
a final average earnings type plan under which benefits reflect the employee's
years of credited service.  The employee receives the higher of either a
Social Security integrated or non-integrated formula to realize the maximum
retirement benefit applicable to his or her employment history.  Both of the
formulae are based on the average of the three highest consecutive January 1
base salaries during the ten-year period preceding the employee's retirement
or termination.  Retirement benefits are available to employees on or after
age fifty-five provided the sum of their age and years of service is at least
seventy-five. Mr. Wright, Mr. Poist, Ms. McLaughlin, Mr. Rappoli and
Mr. Sullivan have 31, 27, 19, 24 and 23 credited years of service respective-
ly. For the purposes of calculating the annual retirement benefits of Mr.
Wright, Mr. Poist, Ms. McLaughlin, Mr. Rappoli and Mr. Sullivan  pursuant to
the Plan, only the amounts set forth in the summary compensation table as
"Salary" are utilized to determine each Executive Officer's three highest
consecutive January 1 base salaries during the ten-year period preceding the
Executive Officer's retirement or termination.
<PAGE>
<PAGE 69>

                           COMMONWEALTH ENERGY SYSTEM

                        OTHER EXECUTIVE OFFICER BENEFITS

     Each Executive Officer of the Parent has elected certain pre-retirement
death benefits and supplemental retirement benefits in exchange for waiving
certain standard life insurance benefits (in excess of $50,000), and the
survivor income benefits generally available to all eligible employees.  The
alternative program for Executive Officers provides a pre-retirement death
benefit of either:  (i) a lump-sum payment of three times annual base salary
or (ii) fifty percent of monthly base salary for one hundred and eighty
months.  The supplemental retirement benefit provides that an Executive
Officer may retire after the attainment of age fifty-five and completion of
ten years of service.  Normal retirement at age sixty-five provides an annual
payment equal to thirty-five percent of final base salary per year for life or
for a period of one hundred and eighty months, whichever is longer.  Benefits
are reduced for retirement prior to age sixty-five.  The supplemental retire-
ment benefits are in addition to the amounts shown in the table above and are
not subject to limitation.  If termination of employment occurs following a
change in control of the Parent after the Executive Officer's completion of
ten years of service with the Parent but before the attainment of age
fifty-five, the Executive Officer shall be entitled to receive upon attainment
of age fifty-five a retirement benefit equal to the amounts that would have
been payable had the Executive Officer remained in the employment of the
Parent until the date of the Executive Officer's fifty-fifth birthday and
retired on that date.  Should the employment of the Executive Officer termi-
nate for any other reason (other than death) and before completion of ten
years of service and attainment of age fifty-five, there are no benefits
payable under this alternative program for Executive Officers.

      The Parent has entered into Severance Agreements with its Executive
Officers, including Mr. Wright, Ms. McLaughlin, Mr. Rappoli and Mr. Sullivan. 
The Severance Agreements provide that in the event of termination of employ-
ment following a change of control of the Parent, as defined in the Severance
Agreements, the Parent shall pay to the Executive Office a lump sum severance
benefit payable to Mr. Wright, Ms. McLaughlin, Mr. Rappoli and Mr. Sullivan is
up to three times their salary and annual incentive compensation.  No benefit
would be paid if the effect of any payment would be to provide benefits above
those normally payable beyond age sixty-five.

             COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION

     The Executive Compensation Committee of the Board of Trustees (the
"Committee") is composed of three independent, non-employee Trustees.  The
Committee reviews and approves compensation levels for the Parent's Chief
Executive Officer and oversees the Parent's executive compensation programs
affecting all Executive Officers.  These programs have been designed in order
to attract, retain, motivate and reward those individuals who are most
responsible for the Parent's growth and profitability.  The programs reflect
the Committee's objectives of tying a substantial portion of each Executive
Officer's compensation to both the Parent's and the individual's success in
meeting designated goals and objectives and in realizing increases in total
shareholder return.

      Compensation for Executive Officers consists of base salary, annual cash
incentive compensation and long-term incentive awards in the form of restrict-
ed stock awards of Common Shares.  Executive Officers also participate in the
Pension Plan and the Employee Savings Plan and receive benefits under medical
and other benefit plans which are available to employees generally.
<PAGE>
<PAGE 70>

                           COMMONWEALTH ENERGY SYSTEM
Base Salary

     In setting the base salaries for the Chief Executive Officer and all
other Executive Officers, the Committee evaluates the general responsibilities
of the particular position and the individual's experience in that position
and also applies the data and criteria described in the next paragraph.  The
Chief Executive Officer's base salary target is designed generally to match
the market median for the utility reference group described in the next
paragraph.  The Committee adjusts the Chief Executive Officer's salary in
relation to the salary range target through the evaluation of the same
objective criteria used to determine the Chief Executive Officer's annual
incentive award set forth below.  Less emphasis is placed on base salary
adjustments than on incentive compensation, consistent with the Committee's
objectives of placing increasingly greater emphasis on performance based,
at-risk incentive compensation.

     In setting the Chief Executive Officer's base salary for 1998, the
Committee surveyed and reviewed compensation levels and the reference criteria
relating to such compensation levels within the gas and electric utility
industry.  Compensation data and comparisons were provided to the Committee by
independent sources and were used by the Committee together with market
compensation data provided by the Parent's human resources department,
compensation reports contained in proxy materials for companies considered by
the Committee to be similar to the Parent in size, responsibility and complex-
ity and utility industry references such as those provided by the Edison
Electric Institute.  Among the reference criteria reviewed by the Committee in
developing external market pay norms were business type (investor-owned
utilities), scope (utilities with revenues of approximately $500 million to
$2 billion) and location (utilities headquartered in the northeast region of
the U.S.).  This market reference group of companies represents a subset of
Value Line, Inc.'s utility sample.

Annual Incentive Compensation

     The Chief Executive Officer is eligible to receive annual cash bonus
compensation under the Parent's Annual Incentive Plan.  In 1998, the Annual
Incentive Plan provided for awards to the Chief Executive Officer of up to a
maximum of 47% of annual base salary.  Both individual and Parent performance
goals and objectives were set.  The Chief Executive Officer's award for 1998
was determined on a weighted basis, with two-thirds of the award potential
attributable to the attainment of Parent goals and objectives and one-third of
the award potential attributable to individual goals and objectives.  For
1998, the Parent criteria forming the goals and objectives applicable to the
Annual Incentive Plan were: 1) meeting pre-established targets comparing
Parent actual net income to budgeted net income for 1998; 2) success in
implementing budgetary constraints in the interest of controlling costs; and
3) meeting certain pre-established benchmark measures of operation and
maintenance expenses per customer, as compared to a peer group of 18 utility
companies recommended by the Parent's independent compensation consultant. 
Each of the three Parent goals and objectives are equally weighted, and awards
are made based on meeting, exceeding or reaching maximum attainment of
targets. 

     The goal established for actual net income was to meet or exceed the
approved budgeted amounts.  The Parent's 1998 net income exceeded targeted net
income by 7.5%.  The goal established for cost control was for operation and
maintenance expenses in 1998 to be below the approved budgeted amounts.  This
goal was met, as the Parent reduced actual operation and maintenance expenses
to 3.8% below established budgets.  The goal of maintaining operation and
maintenance expenses per customer within the top 50% of the 18 company
industry peer group was also exceeded, as the Parent was rated the fourth most
effective of the 18 companies in controlling operation and maintenance
<PAGE>
<PAGE 71>

                           COMMONWEALTH ENERGY SYSTEM

expenses.  In the aggregate, the goals and objectives applicable to the Parent
component of the Annual Incentive Plan were rated as 92% achieved.

     The individual goals of Mr. Wright for 1998 under the Annual Incentive
Plan included: timely completion of COM/Electric's Restructuring Plan before
the Massachusetts Department of Telecommunications and Energy; the sale of
COM/Electric's generation assets to Southern Energy; the development of
procedures to ensure compliance by the Parent with state and federal affiliate
transaction and Standards of Conduct laws and regulations; and the completion
of various investor relations programs as recommended by the Parent's investor
relations consultant.  Performance relative to achieving individual goals was
rated as 90% achieved, resulting in an aggregate performance rating of 90%
achievement.  In addition, Mr. Poist was given a discretionary award of
$40,000 under the Annual Incentive Plan.

Long-Term Compensation

     The Long-Term Incentive Plan, approved by shareholders in 1994, measures
performance and provides for the potential for awards of Common Shares over a
three-year Plan Period.  The Plan provides for awards to the Chief Executive
Officer of up to a maximum of 50% of annual base salary, awarded in the form
of restricted Common Shares.  Awards of Common Shares under the Plan are made
if the Parent's average three-year total return (share appreciation and
dividends), as compared to the peer group index of utility companies as
established by Value Line, Inc., meets or exceeds the achievement standards
set by the Committee at the beginning of a Plan Period.  In this way, the
interests of Executive Officers and Shareholders continue to be aligned.

     For the three-year Plan Period commencing in 1996, the Threshold, Plan
Target and Maximum Shareholder Return achievement standards were 95% of Index
Average, Index Average, and 120% of Index Average, respectively.  During this
Plan Period, the Parent's average total return was equal to 150% of the peer
group index, resulting in a maximum award in March of 1999 to Mr. Wright equal
to 50% of his January 1, 1998 base salary ($120,000) in restricted Common
Share.  Under the terms of the Long Term Incentive Plan, the restricted Common
Shares generally vest three years from the date they are issued.

Other Executive Officers

     The Chief Executive Officer, in conjunction with the Parent's human
resources department and an independent consultant, established salary ranges
for each Executive Officer.  The salary ranges were based in part upon
salaries provided to executive officers in the Parent's industry peer group,
as reported by the Edison Electric Institute and from regional salary surveys,
so as to establish salary ranges generally in the median of the peer group. 
Specific salary levels were then established through an evaluation of the
responsibilities of the position, the individual's experience in that position
and the Executive Officer's achievement of goals and performance of duties. 
The base salary levels, as recommended by the Chief Executive Officer, were
also reviewed and approved by the Executive Compensation Committee.

     In addition to base salary, the named Executive Officers are also
eligible to receive compensation under the Annual Incentive Plan and the Long
Term Incentive Plan.  The named Executive Officers are eligible to receive
compensation of up to a maximum of 42% (for Vice Presidents) to 47% (for the
Operating Companies' President) of annual base salary under the Annual
Incentive Plan and of up to 40% (for Vice Presidents) to 50% (for the Operat-
ing Companies' President) of annual base salary in restricted Common Shares
under the Long Term Incentive Plan. In 1998, the Parent goals and objectives
constituting the annual performance criteria and the corresponding weightings
which determined eligibility for awards to the named Executive Officers under
<PAGE>
<PAGE 72>

                           COMMONWEALTH ENERGY SYSTEM

the Annual Incentive Plan were the same as those applicable to the Chief
Executive Officer.  The individual goals and objectives of the other Executive
Officer Annual Incentive Plan participants included:  completion of the
purchase of the MATEP facility; Year 2000 compliance for the Parent's Share-
holder Record Systems; continuing and expanding the Parent's Investor Rela-
tions Program; completing the sale of COM/Electric's generating assets to
Southern Energy; and timely completion of COM/Electric's Restructuring Plan
before the Massachusetts Department of Telecommunications and Energy on or
before March 1, 1998.

      The performance criteria applicable to the named Executive Officers
under the Long Term Incentive Plan are the same as those applicable to the
Chief Executive Officer.

Policy on Deductibility of Compensation

     Pursuant to Section 162(m) of the Internal Revenue Code, the ability of
the Parent to deduct the compensation paid to any of the five most highly paid
officers in excess of $1 million is limited by Federal Law.  The compensation
of each of the Parent's Executive Officers, however, is lower than the $1
million threshold at which tax deductions are limited. It is therefore not
necessary that the Committee formulate a policy with respect to qualifying
compensation for deductibility under the Internal Revenue Code.

Conclusion

     The Committee continues to take action to link executive compensation
directly to corporate performance and shareholder total return.  A substantial
portion of each Executive Officer's compensation is now dependent upon
measurable individual performance and Parent Common Share appreciation.

               THE EXECUTIVE COMPENSATION COMMITTEE
               Michael C. Ruettgers, Chairperson
               William J. O'Brien
               Gerald L. Wilson

                      COMPARATIVE TOTAL SHAREHOLDER RETURN

     The line graph below compares the cumulative total shareholder return for
the Parent's Common Shares to the cumulative total return of the S&P 500 Stock
Index and a Peer Group Index which is comprised of 83 utility companies
(including the Parent) which are followed by Value Line, Inc.  The entities
which comprise the Peer Group are also set forth hereinafter.
<PAGE>
<PAGE 73>

                           COMMONWEALTH ENERGY SYSTEM

                       Comparative Five-Year Total Returns
          Commonwealth Energy System, S&P 500 and Value Line Peer Group
                     (Performance results through 12/31/98)


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


                           Line graph illustration of

                  comparative five-year (1994-1998) cumulative

                      total returns based on values listed

                                 in chart below.


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


                   1993      1994       1995      1996      1997      1998

      COM/Energy   $100      $ 85       $112      $126      $190      $242
      S&P 500       100       102        140       172       230       295
      Peer Group    100        90        116       124       168       198

      Assumes $100 invested at the close of trading on the last trading day of
      1993 in COM/Energy Common Shares, S&P 500 and the Peer Group.  Also
      assumes reinvestment of dividends.

      Source: Value Line, Inc.

                                   PEER GROUP

Allegheny Power System, Inc.               MidAmerican Energy Holdings Co.
Ameren Corp.                               Minnesota Power, Inc.
American Electric Power Co., Inc.          Montana Power Co.
Baltimore Gas and Electric Co.             Nevada Power Co.
BEC Energy                                 New Century Energies, Inc.
Black Hills Corp.                          New England Electric System
Carolina Power & Light Co.                 Niagara Mohawk Power Corp.
Central & South West Corp.                 NIPSCO Industries, Inc.
Central Hudson Gas & Electric Corp.        Northeast Utilities
Central Vermont Public Service Corp.       Northern States Power Co.
CILCORP                                    Northwestern Corp.
CINergy Corp.                              OGE Energy, Inc.
CLECO Corp.                                Orange & Rockland Utilities
CMS Energy Corp.                           Otter Tail Power Co.
Commonwealth Energy System                 PacifiCorp.
Conectiv, Inc.                             PECO Energy Co.
Consolidated Edison, Inc.                  PG&E Corp.
Dominion Resources, Inc.                   Pinnacle West Capital
DPL, Inc.                                  Potomac Electric Power Co.
DQE                                        PP&L Resources, Inc.
DTE Energy Co.                             Public Service Co. of New Mexico
Duke Power Corp.                           Public Service Enterprise Group Inc.
Eastern Utilities Associates               Puget Sound Energy Inc.
Edison International                       Rochester Gas and Electric Corp.
Empire District Electric Co.               SCANA Corp.
Energy East Corp.                          Sierra Pacific Resources
Entergy Corp.                              SIGCORP, Inc.
<PAGE>
<PAGE 74>

                           COMMONWEALTH ENERGY SYSTEM

FirstEnergy Corp.                          Southern Co.
Florida Progress Corp.                     St. Joseph Light & Power Co.
FPL Group, Inc.                            TECO Energy, Inc.
GPU, Inc.                                  Texas Utilities Company
Green Mountain Power Corp.                 TNP Enterprises, Inc.
Hawaiian Electric Industries, Inc.         Unicom Corp.
Houston Industries, Inc.                   Unisource Energy Corp.
IDACORP, Inc.                              United Illuminating Co.
Illinova Corp.                             UtiliCorp United Inc.
Interstate Energy Corp.                    Washington Water Power Co.
IPALCO Enterprises, Inc.                   Western Resources, Inc.
Kansas City Power & Light                  Wisconsin Energy Corp.
LG&E Energy Corp.                          WPS Resources Corp.
MDU Resources Group Inc.

Item 12.   Security Ownership of Certain Beneficial Owners and Management

     Section 16(a) of the Securities Exchange Act of 1934, as amended,
requires Trustees, Executive Officers and persons who beneficially own more
than ten percent (10%) of the Parent's Common Shares to file initial reports
of ownership on Form 3 and reports of changes in ownership on Form 4 and/or
Form 5 with the Securities and Exchange Commission (the Commission) and any
national securities exchange on which the Parent's securities are registered. 
Trustees, Executive Officers and greater than ten percent (10%) beneficial
owners are required by the Commission's regulations to furnish the Parent with
copies of all Section 16(a) forms they file.

     Based on a review of the copies of such forms furnished to the Parent and
written representations from the Trustees and Executive Officers, the Parent
believes that all Section 16(a) filing requirements applicable to its Trust-
ees, Executive Officers and greater than ten percent (10%) beneficial owners
were complied with for 1998.

     The following table shows the beneficial ownership, reported to the
Parent as of March 1, 1999, of Common Shares of the Parent owned by the Chief
Executive Officer and the four other most highly paid Executive Officers and,
as a group, all Trustees and Executive Officers of the Parent.

                                                Total
                                                Common         Percent of
      Name                                      Shares (1)        Class  

      Russell D. Wright                          15,561           0.1%
      William G. Poist                           20,472           0.1%
      Deborah A. McLaughlin                       4,744           0.1%
      James D. Rappoli                           10,292           0.1%
      Michael P. Sullivan                         8,739           0.1%
      All Trustees and Executive Officers
        as a group (13 persons)                  82,864           0.3%

(1)  Beneficial ownership includes, where applicable, shares with respect to
which voting or investment power is attributed to an Executive Officer or
Trustee because of joint fiduciary ownership of the Shares or relationship of
the Executive Officer or Trustee to the record owner, such as a spouse,
together with shares held under the Employees Savings Plan of Commonwealth
Energy System and Subsidiary Companies.
<PAGE>
<PAGE 75>


                           COMMONWEALTH ENERGY SYSTEM

Item 13.   Certain Relationships and Related Transactions

     The Parent paid legal fees in 1998 to the firm of Rich, May, Bilodeau &
Flaherty, P.C., of which Mr. Hundley is Of Counsel. The firm has been employed
in the last fiscal year and the current fiscal year.

                                    PART IV.

Item 14.    Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a)  1. Index to Financial Statements

     Consolidated financial statements and notes thereto of Commonwealth
     Energy System and Subsidiary Companies, together with the Report of
     Independent Public Accountants, are filed under Item 8 of this Form 10-K
     and listed on the Index to Financial Statements and Schedules (page 38).

(a)  2. Index to Financial Statement Schedules

               Commonwealth Energy System and Subsidiary Companies

     Filed herewith at page(s) indicated -

     Report of Independent Public Accountants on Schedules (page 75).

     Schedule I - Investments in, Equity in Earnings of, and Dividends Re-
     ceived from Related Parties - Years Ended December 31, 1998, 1997 and
     1996 (pages 89-91).

     Schedule II - Valuation and Qualifying Accounts - Years Ended December
     31, 1998, 1997 and 1996 (page 92).

     All other schedules have been omitted because they are not applicable,
     not required or because the required information is included in the
     financial statements or notes thereto.

     Subsidiaries not Consolidated and Fifty-Percent or Less Owned Persons

     Financial statements of 50% or less owned persons accounted for by the
     equity method have been omitted because they do not, considered individ-
     ually or in the aggregate, constitute a significant subsidiary.

     Form 11-K, Annual Reports of Employee Stock Purchases, Savings and
     Similar Plans

     Pursuant to Rule 15(d)-21 of the Securities and Exchange Act of 1934, the
     information, financial statements and exhibits required by Form 11-K with
     respect to the Employees Savings Plan of Commonwealth Energy System and
     Subsidiary Companies will be filed as an amendment to this report under
     cover of Form 10-K/A no later than April 30, 1999.




<PAGE>
<PAGE 76>


                           COMMONWEALTH ENERGY SYSTEM

(a)  3. Exhibits:
                               Notes to Exhibits -

  a.  Unless otherwise designated, the exhibits listed below are incorporated
      by reference to the appropriate exhibit numbers and the Securities and
      Exchange Commission file numbers indicated in parentheses.

  b.  During 1981, New Bedford Gas and Edison Light Company sold its gas
      business and properties to Commonwealth Gas Company and changed its
      corporate name to Commonwealth Electric Company.

  c.  The following is a glossary of Commonwealth Energy System and subsid-
      iary companies' acronyms that are used throughout the following Exhibit
      Index:

        CES ......................  Commonwealth Energy System
        CE .......................  Commonwealth Electric Company
        CEL ......................  Cambridge Electric Light Company
        CEC ......................  Canal Electric Company
        CG .......................  Commonwealth Gas Company
        NBGEL ....................  New Bedford Gas and Edison Light
                                    Company
        HOPCO ....................  Hopkinton LNG Corp.

                                  Exhibit Index

Exhibit 3. Declaration of Trust

                     Commonwealth Energy System (Registrant)

  3.1.1    Declaration of Trust of CES dated December 31, 1926, as amended by
           vote of the shareholders and trustees May 7, 1998 (Exhibit 1 to the
           CES Form 10-Q (September 1998), File No. 1-7316).

Exhibit 4.  Instruments defining the rights of security holders, including
             indentures

                     Commonwealth Energy System (Registrant)

Debt Securities -

  4.1.1    CES Note Agreement ($40 Million Privately Placed Senior Notes)
           dated June 28, 1989 (Exhibit 1 to the CES Form 10-Q (September
           1989), File No. 1-7316).

                        Cambridge Electric Light Company

Indenture of Trust or Supplemental Indenture of Trust -

  4.2.1    Original Indenture on Form S-1 (April, 1949) (Exhibit 7(a), File
           No. 2-7909).

  4.2.2    Third Supplemental on Form 10-K (1984) (Exhibit 1, File No. 2-
           7909).
<PAGE>
<PAGE 77>


                           COMMONWEALTH ENERGY SYSTEM

  4.2.3    Fourth Supplemental on Form 10-K (1984) (Exhibit 2, File No. 2-
           7909).

  4.2.4    Sixth Supplemental on Form 10-Q (June 1989) (Exhibit 1, File No. 2-
           7909).

                     Subsidiary Companies of the Registrant

  4.2.5  Seventh Supplemental on Form 10-Q (June 1992), (Exhibit 1, File No
         2-7909).

                             Canal Electric Company

Indenture of Trust and First Mortgage or Supplemental Indenture of Trust and
First Mortgage -

  4.3.1  Indenture of Trust and First Mortgage with State Street Bank and
         Trust Company, Trustee, dated October 1, 1968 (Exhibit 4(b) to Form
         S-1, File No. 2-30057).

  4.3.2  First and General Mortgage Indenture with Citibank, N.A., Trustee,
         dated September 1, 1976 (Exhibit 4(b)2 to Form S-1, File No. 2-
         56915).

  4.3.3  First Supplemental dated October 1, 1968 with State Street Bank and
         Trust Company, Trustee, dated September 1, 1976 (Exhibit 4(b)3 to
         Form S-1, File No. 2-56915).

  4.3.4  Third Supplemental dated September 1, 1976 with Citibank, N.A., New
         York, NY, Trustee, dated December 1, 1990 (Exhibit 3 to 1990 Form
         10-K, File No. 2-30057).

  4.3.5  Fourth Supplemental dated September 1, 1976 with Citibank, N.A., New
         York, NY, Trustee, dated December 1, 1990 (Exhibit 4 to 1990 Form
         10-K, File No. 2-30057).

                            Commonwealth Gas Company

Indenture of Trust or Supplemental Indenture of Trust -

  4.4.1   Original Indenture on Form S-1 (Feb., 1949) (Exhibit 7(a), File No.
          2-7820).

  4.4.2   Sixteenth Supplemental on Form 10-K (1986) (Exhibit 1, File No. 2-
          1647).

  4.4.3   Seventeenth Supplemental on Form 10-K (1990) (Exhibit 2, File No.
          2-1647).

  4.4.4   Eighteenth Supplemental on Form 10-Q (March 1994) (Exhibit 1, File
          No. 2-1647).

  4.4.5   Nineteenth Supplemental on Form 10-K (1997) (Exhibit 1, File No. 2-
          1647).
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<PAGE 78>


                           COMMONWEALTH ENERGY SYSTEM

Exhibit 10. Material Contracts

10.1      Power contracts.

10.1.1    Power contracts between CEC (Unit 1) and NBGEL and CEL dated
          December 1, 1965 (Exhibit 13(a)(1-4) to the CEC Form S-1, File No.
          2-30057).

10.1.2    Power contract between Yankee Atomic Electric Company (YAEC) and
          CEL dated June 30, 1959, as amended April 1, 1975 (Refiled as
          Exhibit 1 to the 1991 CEL Form 10-K, File No. 2-7909).

10.1.2.1  Second, Third and Fourth Amendments to 10.1.2 as amended October 1,
          1980, April 1, 1985 and May 6, 1988, respectively (Exhibit 2 to the
          CEL Form 10-Q (June 1988), File No. 2-7909).

10.1.2.2  Fifth and Sixth Amendments to 10.1.2 as amended June 26, 1989 and
          July 1, 1989, respectively (Exhibit 1 to the CEL Form 10-Q (Septem-
          ber 1989), File No. 2-7909).

10.1.3    Power Contract between YAEC and NBGEL dated June 30, 1959, as
          amended April 1, 1975 (Refiled as Exhibit 2 to the 1991 CE Form
          10-K, File No. 2-7749).

10.1.3.1  Second, Third and Fourth Amendments to 10.1.3 as amended October 1,
          1980, April 1, 1985 and May 6, 1988, respectively (Exhibit 1 to the
          CE Form 10-Q (June 1988), File No. 2-7749).

10.1.3.2  Fifth and Sixth Amendments to 10.1.3 as amended June 26, 1989 and
          July 1, 1989, respectively (Exhibit 3 to the CE Form 10-Q (September
          1989), File No. 2-7749).

10.1.4    Power Contract between Connecticut Yankee Atomic Power Company
          (CYAPC) and CEL dated July 1, 1964 (Exhibit 13-K1 to the Parent's
          Form S-1, (April 1967) File No. 2-25597).

10.1.4.1  Additional Power Contract providing for extension on contract term
          between CYAPC and CEL dated April 30, 1984 (Exhibit 5 to the CEL
          Form 10-Q (June 1984), File No. 2-7909).

10.1.4.2  Second Supplementary Power Contract providing for decommissioning
          financing between CYAPC and CEL dated April 30, 1984 (Exhibit 6 to
          the CEL Form 10-Q (June 1984), File No. 2-7909).

10.1.5    Power contract between Vermont Yankee Nuclear Power Corporation
          (VYNPC) and CEL dated February 1, 1968 (Exhibit 3 to the CEL 1984
          Form 10-K, File No. 2-7909).

10.1.5.1  First Amendment dated June 1, 1972 (Section 7) and Second Amendment
          dated April 15, 1983 (decommissioning financing) to 10.1.5 (Exhibits
          1 and 2, respectively, to the CEL Form 10-Q (June 1984), File No. 2-
          7909).
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<PAGE 79>

                           COMMONWEALTH ENERGY SYSTEM

10.1.5.2  Third Amendment dated April 1, 1985 and Fourth Amendment dated June
          1, 1985 to 10.1.5 (Exhibits 1 and 2, respectively, to the CEL Form
          10-Q (June 1986), File No. 2-7909).

10.1.5.3  Fifth and Sixth Amendments to 10.1.5 dated February 1, 1968, both as
          amended May 6, 1988 (Exhibit 1 to the CEL Form 10-Q (June 1988),
          File No. 2-7909).

10.1.5.4  Seventh Amendment to 10.1.5 dated February 1, 1968, as amended June
          15, 1989 (Exhibit 2 to the CEL Form 10-Q (September 1989), File No.
          2-7909).

10.1.5.5  Additional Power Contract dated February 1, 1984 between CEL and
          VYNPC providing for decommissioning financing and contract extension
          (Refiled as Exhibit 1 to CEL 1993 Form 10-K, File No. 2-7909).

10.1.6    Power contract between Maine Yankee Atomic Power Company (MYAPC) and
          CEL dated May 20, 1968 (Exhibit 5 to the Parent's Form S-7, File No.
          2-38372).

10.1.6.1  First Amendment dated March 1, 1984 (decommissioning financing) and
          Second Amendment dated January 1, 1984 (supplementary payments) to
          10.1.6 (Exhibits 3 and 4 to the CEL Form 10-Q (June 1984), File No.
          2-7909).

10.1.6.2  Third Amendment to 10.1.6 dated October 1, 1984 (Exhibit 1 to the
          CEL Form 10-Q (September 1984), File No. 2-7909).

10.1.7    Agreement between NBGEL and Boston Edison Company (BECO) for the
          purchase of electricity from BECO's Pilgrim Unit No. 1 dated Au-
          gust 1, 1972 (Exhibit 7 to the CE 1984 Form 10-K, File No. 2-7749).

10.1.7.1  Service Agreement between NBGEL and BECO for purchase of stand-by
          power for BECO's Pilgrim Station dated August 16, 1978 (Exhibit 1 to
          the CE 1988 Form 10-K, File No. 2-7749).

10.1.7.2  System Power Sales Agreement by and between CE and BECO dated July
          12, 1984 (Exhibit 1 to the CE Form 10-Q (September 1984), File No.
          2-7749).

10.1.7.3  Power Exchange Agreement by and between BECO and CE dated December
          1, 1984 (Exhibit 16 to  the CE 1984 Form 10-K, File No. 2-7749).

10.1.7.4  Service Agreement for Non-Firm Transmission Service between BECO and
          CEL dated July 5, 1984 (Exhibit 4 to the CEL 1984 Form 10-K, File
          No. 2-7909).

10.1.8    Agreement for Joint-Ownership, Construction and Operation of New
          Hampshire Nuclear Units (Seabrook) dated May 1, 1973 (Exhibit 13(N)
          to the NBGEL Form S-1 dated October 1973, File No. 2-49013 and as
          amended below:

10.1.8.1  First through Fifth Amendments to 10.1.8 as amended May 24, 1974,
          June 21, 1974, September 25, 1974, October 25, 1974 and January 31,
          1975, respectively (Exhibit 13(m) to the NBGEL Form S-1 (November 7,
          1975), File No. 2-54995).

10.1.8.2  Sixth through Eleventh Amendments to 10.1.8 as amended April 18,
          1979, April 25, 1979, June 8, 1979, October 11, 1979 and December
          15, 1979, respectively (Refiled as Exhibit 1 to the CEC 1989 Form
          10-K, File No. 2-30057).
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<PAGE 80>


                           COMMONWEALTH ENERGY SYSTEM

10.1.8.3   Twelfth through Fourteenth Amendments to 10.1.8 as amended May 16,
           1980, December 31, 1980 and June 1, 1982, respectively (Filed as
           Exhibits 1, 2, and 3 to the CE 1992 Form 10-K, File No. 2-7749).

10.1.8.4   Fifteenth and Sixteenth Amendments to 10.1.8 as amended April 27,
           1984 and June 15, 1984, respectively (Exhibit 1 to the CEC Form 10-
           Q (June 1984), File No. 2-30057).

10.1.8.5   Seventeenth Amendment to 10.1.8 as amended March 8, 1985 (Exhibit 1
           to the CEC Form 10-Q (March 1985), File No. 2-30057).

10.1.8.6   Eighteenth Amendment to 10.1.8 as amended March 14, 1986 (Exhibit 1
           to the CEC Form 10-Q (March 1986), File No. 2-30057).

10.1.8.7   Nineteenth Amendment to 10.1.8 as amended May 1, 1986 (Exhibit 1 to
           the CEC Form 10-Q (June 1986), File No. 2-30057).

10.1.8.8   Twentieth Amendment to 10.1.8 as amended September 19, 1986 (Exhib-
           it 1 to the CEC 1986 Form 10-K, File No. 2-30057).

10.1.8.9   Twenty-First Amendment to 10.1.8 as amended November 12, 1987
           (Exhibit 1 to the CEC 1987 Form 10-K, File No. 2-30057).

10.1.8.10  Settlement Agreement and Twenty-Second Amendment to 10.1.8, both
           dated January 13, 1989 (Exhibit 4 to the CEC 1988 Form 10-K, File
           No. 2-30057).

10.1.9     Purchase and Sale Agreement together with an implementing Addendum
           dated December 31, 1981, between CE and CEC, for the purchase and
           sale of the CE 3.52% joint-ownership interest in the Seabrook
           units, dated January 2, 1981 (Refiled as Exhibit 4 to the CE 1992
           Form 10-K, File No. 2-7749).

10.1.10    Agreement to transfer ownership, construction and operational
           interest in the Seabrook Units 1 and 2 from CE to CEC dated January
           2, 1981 (Refiled as Exhibit 3 to the 1991 CE Form 10-K, File No. 2-
           7749).

10.1.11    Power Contract, as amended to February 28, 1990, superseding the
           Power Contract dated September 1, 1986 and amendment dated June 1,
           1988, between CEC (seller) and CE and CEL (purchasers) for seller's
           entire share of the Net Unit Capability of Seabrook 1 and related
           energy (Exhibit 1 to the CEC Form 10-Q (March 1990), File No. 2-
           30057).

10.1.12    Agreement between NBGEL and Central Maine Power Company (CMP), for
           the joint-ownership, construction and operation of William F. Wyman
           Unit No. 4 dated November 1, 1974 together with Amendment No. 1
           dated June 30, 1975 (Exhibit 13(N) to the NBGEL Form S-1, File No.
           2-54955).




<PAGE>
<PAGE 81>


                           COMMONWEALTH ENERGY SYSTEM

10.1.12.1  Amendments No. 2 and 3 to 10.1.12 as amended August 16, 1976 and
           December 31, 1978 (Exhibit 5(a) 14 to the Parent's Form S-16 (June
           1979), File No. 2-64731).

10.1.13    Agreement between the registrant and Montaup Electric Company (MEC)
           for use of common facilities at Canal Units I and II and for
           allocation of related costs, executed October 14, 1975 (Exhibit 1
           to the CEC 1985 Form 10-K, File No. 2-30057).

10.1.13.1  Agreement between the registrant and MEC for joint-ownership of
           Canal Unit II, executed October 14, 1975 (Exhibit 2 to the CEC 1985
           Form 10-K, File No. 2-30057).

10.1.13.2  Agreement between the registrant and MEC for lease relating to
           Canal Unit II, executed October 14, 1975 (Exhibit 3 to the CEC 1985
           Form 10-K, File No. 2-30057).

10.1.14    Contract between CEC and NBGEL and CEL, affiliated companies, for
           the sale of specified amounts of electricity from Canal Unit 2
           dated January 12, 1976 (Exhibit 7 to the Parent's 1985 Form 10-K,
           File No. 1-7316).

10.1.15    Capacity Acquisition Agreement between CEC,CEL and CE dated Septem-
           ber 25, 1980 (Refiled as Exhibit 1 to the 1991 CEC Form 10-K, File
           No. 2-30057).

10.1.15.1  Amendment to 10.1.15 as amended and restated June 1, 1993,  hence-
           forth referred to as the Capacity Acquisition and Disposition
           Agreement, whereby Canal Electric Company, as agent, in addition to
           acquiring power may also sell bulk electric power which Cambridge
           Electric Light Company and/or Commonwealth Electric Company owns or
           otherwise has the right to sell (Exhibit 1 to Canal Electric's Form
           10-Q (September 1993), File No. 2-30057).

10.1.16    Phase 1 Vermont Transmission Line Support Agreement and Amendment
           No. 1 thereto between Vermont Electric Transmission Company, Inc.
           and certain other New England utilities, dated December 1, 1981 and
           June 1, 1982, respectively (Exhibits 5 and 6 to the CE 1992 Form
           10-K, File No. 2-7749).

10.1.16.1  Amendment No. 2 to 10.1.16 as amended November 1, 1982 (Exhibit 5
           to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.16.2  Amendment No. 3 to 10.1.16 as amended January 1, 1986 (Exhibit 2 to
           the CE 1986 Form 10-K, File No. 2-7749).

10.1.17    Power Purchase Agreement between Pioneer Hydropower, Inc. and CE
           for the purchase of available hydro-electric energy produced by a
           facility located in Ware, Massachusetts, dated September 1, 1983
           (Refiled as Exhibit 1 to the CE 1993 Form 10-K, File No. 2-7749).




<PAGE>
<PAGE 82>


                           COMMONWEALTH ENERGY SYSTEM

10.1.18    Power Purchase Agreement between Corporation Investments, Inc.
           (CI), and CE for the purchase of available hydro-electric energy
           produced by a facility located in Lowell, Massachusetts, dated
           January 10, 1983 (Refiled as Exhibit 2 to the CE 1993 Form 10-K,
           File No. 2-7749).

10.1.18.1  Amendment to 10.1.18 between CI and Boott Hydropower, Inc., an
           assignee therefrom, and CE, as amended March 6, 1985 (Exhibit 8 to
           the CE 1984 Form 10-K, File No. 2-7749).

10.1.19    Phase 1 Terminal Facility Support Agreement dated December 1, 1981,
           Amendment No. 1 dated June 1, 1982 and Amendment No. 2 dated
           November 1, 1982, between New England Electric Transmission Corpo-
           ration (NEET), other New England utilities and CE (Exhibit 1 to the
           CE Form 10-Q (June 1984), File No. 2-7749).

10.1.19.1  Amendment No. 3 to 10.1.19 (Exhibit 2 to the CE Form 10-Q (June
           1986), File No. 2-7749).

10.1.20    Preliminary Quebec Interconnection Support Agreement dated May 1,
           1981, Amendment No. 1 dated September 1, 1981, Amendment No. 2
           dated June 1, 1982, Amendment No. 3 dated November 1, 1982, Amend-
           ment No. 4 dated March 1, 1983 and Amendment No. 5 dated June 1,
           1983 among certain New England Power Pool (NEPOOL) utilities
           (Exhibit 2 to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.21    Agreement with Respect to Use of Quebec Interconnection dated
           December 1, 1981, Amendment No. 1 dated May 1, 1982 and Amendment
           No. 2 dated November 1, 1982 among certain NEPOOL utilities (Exhib-
           it 3 to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.21.1  Amendatory Agreement No. 3 to 10.1.21 as amended June 1, 1990,
           among certain NEPOOL utilities (Exhibit 1 to the CEC Form 10-Q
           (September 1990), File No. 2-30057).

10.1.22    Phase I New Hampshire Transmission Line Support Agreement between
           NEET and certain other New England Utilities dated December 1, 1981
           (Exhibit 4 to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.23    Agreement, dated September 1, 1985, with Respect To Amendment of
           Agreement With Respect To Use Of Quebec Interconnection, dated
           December 1, 1981, among certain NEPOOL utilities to include Phase
           II facilities in the definition of "Project" (Exhibit 1 to the CEC
           Form 10-Q (September 1985), File No. 2-30057).

10.1.24    Agreement to Preliminary Quebec Interconnection Support Agreement -
           Phase II among Public Service Company of New Hampshire (PSNH), New
           England Power Co. (NEP), BECO and CEC whereby PSNH assigns a
           portion of its interests under the original Agreement to the other
           three parties, dated October 1, 1987 (Exhibit 2 to the CEC 1987
           Form 10-K, File No. 2-30057).



<PAGE>
<PAGE 83>


                           COMMONWEALTH ENERGY SYSTEM

10.1.25    Preliminary Quebec Interconnection Support Agreement - Phase II
           among certain New England electric utilities dated June 1, 1984
           (Exhibit 6 to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.25.1  First, Second and Third Amendments to 10.1.25 as amended March 1,
           1985, January 1, 1986 and March 1, 1987, respectively (Exhibit 1 to
           the CEC Form 10-Q (March 1987), File No. 2-30057).

10.1.25.2  Fifth, Sixth and Seventh Amendments to 10.1.25 as amended October
           15, 1987, December 15, 1987 and March 1, 1988, respectively (Exhib-
           it 1 to the CEC Form 10-Q (June 1988), File No. 2-30057).

10.1.25.3  Fourth and Eighth Amendments to 10.1.25 as amended July 1, 1987 and
           August 1, 1988, respectively (Exhibit 3 to the CEC Form 10-Q
           (September 1988), File No. 2-30057).

10.1.25.4  Ninth and Tenth Amendments to 10.1.25 as amended November 1, 1988
           and January 15, 1989, respectively (Exhibit 2 to the CEC 1988 Form
           10-K, File No. 2-30057).

10.1.25.5  Eleventh Amendment to 10.1.25 as amended November 1, 1989 (Exhibit
           4 to the CEC 1989 Form 10-K, File No. 2-30057).

10.1.25.6  Twelfth Amendment to 10.1.25 as amended April 1, 1990 (Exhibit 1 to
           the CEC Form 10-Q (June 1990), File No. 2-30057).

10.1.26    Phase II Equity Funding Agreement for New England Hydro-Transmis-
           sion Electric Company, Inc. (New England Hydro) (Massachusetts),
           dated June 1, 1985, between New England Hydro and certain NEPOOL
           utilities (Exhibit 2 to the CEC Form 10-Q (September 1985), File
           No. 2-30057).

10.1.27    Phase II Massachusetts Transmission Facilities Support Agreement
           dated June 1, 1985, refiled as a single agreement incorporating
           Amendments 1 through 7 dated May 1, 1986 through January 1, 1989,
           respectively, between New England Hydro and certain NEPOOL utili-
           ties (Exhibit 2 to the CEC Form 10-Q (September 1990), File No. 2-
           30057).

10.1.28    Phase II New Hampshire Transmission Facilities Support Agreement
           dated June 1, 1985, refiled as a single agreement incorporating
           Amendments 1 through 8 dated May 1, 1986 through January 1, 1990,
           respectively, between New England Hydro-Transmission Corporation
           (New Hampshire Hydro) and certain NEPOOL utilities (Exhibit 3 to
           the CEC Form 10-Q (September 1990), File No. 2-30057).

10.1.29    Phase II Equity Funding Agreement for New Hampshire Hydro, dated
           June 1, 1985, between New Hampshire Hydro and certain NEPOOL
           utilities (Exhibit 3 to the CEC Form 10-Q (September 1985), File
           No. 2-30057).

10.1.29.1  Amendment No. 1 to 10.1.29 dated May 1, 1986 (Exhibit 6 to the CEC
           Form 10-Q (March 1987), File No. 2-30057).

<PAGE>
<PAGE 84>


                           COMMONWEALTH ENERGY SYSTEM

10.1.29.2  Amendment No. 2 to 10.1.29 as amended September 1, 1987 (Exhibit 3
           to the CEC Form 10-Q (September 1987), File No. 2-30057).

10.1.30    Phase II New England Power AC Facilities Support Agreement, dated
           June 1, 1985, between NEP and certain NEPOOL utilities (Exhibit 6
           to the CEC Form 10-Q (September 1985), File No. 2-30057).

10.1.30.1  Amendments Nos. 1 and 2 to 10.1.30 as amended May 1, 1986 and
           February 1, 1987, respectively (Exhibit 5 to the CEC Form 10-Q
           (March 1987), File No. 2-30057).

10.1.30.2  Amendments Nos. 3 and 4 to 10.1.30 as amended June 1, 1987 and
           September 1, 1987, respectively (Exhibit 5 to the CEC Form 10-Q
           (September 1987), File No. 2-30057).

10.1.31    Agreement Authorizing Execution of Phase II Firm Energy Contract,
           dated September 1, 1985, among certain NEPOOL utilities in regard
           to participation in the purchase of power from Hydro-Quebec (Exhib-
           it 8 to the CEC Form 10-Q (September 1985), File No. 2-30057).

10.1.32    Agreements by and between Swift River Company and CE for the
           purchase of available hydro-electric energy to be produced by units
           located in Chicopee and North Willbraham, Massachusetts, both dated
           September 1, 1983 (Exhibits 11 and 12 to the CE 1984 Form 10-K,
           File No. 2-7749).

10.1.33    Power Purchase Agreement by and between SEMASS Partnership, as
           seller, to construct, operate and own a solid waste disposal
           facility at its site in Rochester, Massachusetts and CE, as buyer
           of electric energy and capacity, dated September 8, 1981 (Exhibit
           17 to the CE 1984 Form 10-K, File No. 2-7749).

10.1.33.1  Power Sales Agreement to 10.1.33 for all capacity and related
           energy produced, dated October 31, 1985 (Exhibit 2 to the CE 1985
           Form 10-K, File No. 2-7749).

10.1.33.2  Amendment to 10.1.33 for all additional electric capacity and
           related energy to be produced by an addition to the Original Unit,
           dated March 14, 1990 (Exhibit 1 to the CE Form 10-Q (June 1990),
           File No. 2-7749).

10.1.33.3  Amendment to 10.1.33 for all additional electric capacity and
           related energy to be produced by an addition to the Original Unit,
           dated May 24, 1991 (Exhibit 1 to CE Form 10-Q (June 1991), File No.
           2-7749).

10.1.34    Power Sale Agreement by and between CE (buyer) and Northeast Energy
           Associated, Ltd. (NEA) (seller) of electric energy and capacity,
           dated November 26, 1986 (Exhibit 1 to the CE Form 10-Q (March
           1987), File No. 2-7749).

10.1.34.1  First Amendment to 10.1.34 as amended August 15, 1988 (Exhibit 1 to
           the CE Form 10-Q (September 1988), File No. 2-7749).

<PAGE>
<PAGE 85>


                           COMMONWEALTH ENERGY SYSTEM

10.1.34.2  Second Amendment to 10.1.34 as amended January 1, 1989 (Exhibit 2
           to the CE 1988 Form 10-K, File No. 2-7749).

10.1.34.3  Power Sale Agreement dated August 15, 1988 between NEA and CE for
           the purchase of 21 MW of electricity (Exhibit 2 to the CE Form
           10-Q (September 1988), File No. 2-7749).

10.1.34.4  Amendment to 10.1.34.3 as amended January 1, 1989 (Exhibit 3 to the
           CE 1988 Form 10-K, File No. 2-7749).

10.1.35    Power Purchase Agreement and First Amendment, dated September 5,
           1989 and August 3, 1990, respectively, by and between Commonwealth
           Electric (buyer) and Dartmouth Power Associates Limited Partnership
           (seller), whereby buyer will purchase all of the energy (67.6 MW)
           produced by a single gas turbine unit (Exhibit 1 to the CE Form 10-
           Q (June 1992), File No. 2-7749).

10.1.35.1  Second Amendment, dated June 23, 1994, to 10.1.50 by and between
           Commonwealth Electric Company and Dartmouth Power Associates, L.P.
           dated September 5, 1989 (Exhibit 4 to the CE Form 10-Q (June 1995),
           File No. 2-7749).

10.1.36    Power Purchase Agreement by and between Masspower (seller) and Com-
           monwealth Electric Company (buyer) for a 11.11% entitlement to the
           electric capacity and related energy of a 240 MW gas-fired cogen-
           eration facility, dated February 14, 1992 (Exhibit 1 to Common-
           wealth Electric's Form 10-Q (September 1993), File No. 2-7749).

10.1.37    Power Sale Agreement by and between Altresco Pittsfield, L.P.
           (seller) and Commonwealth Electric Company (buyer) for a 17.2%
           entitlement to the electric capacity and related energy of a 160 MW
           gas-fired cogeneration facility, dated February 20, 1992 (Exhibit 2
           to Commonwealth Electric's Form 10-Q (September 1993), File No. 2-
           7749).

10.1.37.1  System Exchange Agreement by and among Altresco Pittsfield, L.P.,
           Cambridge Electric Light Company, Commonwealth Electric Company and
           New England Power Company, dated July 2, 1993 (Exhibit 3 to Common-
           wealth Electric's Form 10-Q (September 1993), File No 2-7749).

10.1.37.2  Power Sale Agreement by and between Altresco Pittsfield, L. P.
           (seller) and Cambridge Electric Light Company (Cambridge Electric)
           (buyer) for a 17.2% entitlement to the electric capacity and
           related energy of a 160 MW gas-fired cogeneration facility, dated
           February 20, 1992 (Exhibit 1 to Cambridge Electric's Form 10-Q
           (September 1993), File No. 2-7909).

10.1.37.3  First Amendment, dated November 7, 1994, to 10.1.37 by and between
           Commonwealth Electric Company and Altresco Pittsfield, L.P. dated
           February 20, 1992 (Filed as Exhibit 3 to Commonwealth Electric
           Company's Form 10-Q (June 1995), File 2-7749).



<PAGE>
<PAGE 86>


                           COMMONWEALTH ENERGY SYSTEM

10.1.37.4  First Amendment, dated November 7, 1994, to 10.1.37.2 by and
           between Cambridge Electric Light Company and Altresco Pittsfield,
           L.P. dated February 20, 1992 (Filed as Exhibit 2 to Cambridge
           Electric Light Company's Form 10-Q (June 1995), File 2-7909).

10.2       Natural gas purchase contracts.

10.2.1     Transportation Agreement between CNG and CG to provide for trans-
           portation of natural gas on a daily basis from Steuben Gas Storage
           Company to TGP (Exhibit 10 to the CG 1991 Form 10-K, File No. 2-
           1647).

10.3       Other agreements.

10.3.1     Pension Plan for Employees of Commonwealth Energy System and
           Subsidiary Companies as amended and restated January 1, 1993
           (Exhibit 1 to CES Form 10-Q (September 1993), File No. 1-7316).

10.3.2     Employees Savings Plan of Commonwealth Energy System and Subsid-
           iary Companies as amended and restated January 1, 1993.(Exhibit 2
           to CES Form 10-Q (September 1993), File No. 1-7316).

10.3.2.1   First Amendment to 10.3.2, effective October 1, 1994. (Exhibit 1 to
           CES Form S-8 (January 1995), File No. 1-7316).

10.3.2.2   Second Amendment to 10.3.2, effective April 1, 1996 (Exhibit 1 to
           CES Form 10-K/A Amendment No. 1 (April 30, 1996), File No. 1-7316).

10.3.2.3   Third Amendment to 10.3.2, effective January 1, 1997 (Exhibit 1 to
           CES Form 10-K/A Amendment No. 1 (April 29, 1997), File No. 1-7316).

10.3.3     New England Power Pool Agreement (NEPOOL) dated September 1, 1971
           as amended through August 1, 1977, between NEGEA Service Corpora-
           tion, as agent for CEL, CEC, NBGEL, and various other electric
           utilities operating in New England together with amendments dated
           August 15, 1978, January 31, 1979 and February 1, 1980. (Exhibit
           5(c)13 to New England Gas and Electric Association's Form S-16
           (April 1980), File No. 2-64731).

10.3.3.1   Thirteenth Amendment to 10.3.3 as amended September 1, 1981 (Re-
           filed as Exhibit 3 to the Parent's 1991 Form 10-K, File No.
           1-7316).

10.3.3.2   Fourteenth through Twentieth Amendments to 10.3.3 as amended
           December 1, 1981, June 1, 1982, June 15, 1983, October 1, 1983,
           August 1, 1985, August 15, 1985 and September 1, 1985, respectively
           (Exhibit 4 to the CES Form 10-Q (September 1985), File No. 1-7316).

10.3.3.3   Twenty-first Amendment to 10.3.3 as amended to January 1, 1986
           (Exhibit 1 to the CES Form 10-Q (March 1986), File No. 1-7316).

10.3.3.4   Twenty-second Amendment to 10.3.3 as amended to September 1, 1986
           (Exhibit 1 to the CES Form 10-Q (September 1986), File No. 1-7316).

<PAGE>
<PAGE 87>


                           COMMONWEALTH ENERGY SYSTEM

10.3.3.5   Twenty-third Amendment to 10.3.3 as amended to April 30, 1987
           (Exhibit 1 to the CES Form 10-Q (June 1987), File No. 1-7316).

10.3.3.6   Twenty-fourth Amendment to 10.3.3 as amended March 1, 1988 (Exhibit
           1 to the CES Form 10-Q (March 1989), File No. 1-7316).

10.3.3.7   Twenty-fifth Amendment to 10.3.3. as amended to May 1, 1988 (Exhib-
           it 1 to the CES Form 10-Q (March 1988), File No. 1-7316).

10.3.3.8   Twenty-sixth Agreement to 10.3.3 as amended March 15, 1989 (Exhibit
           1 to the CES Form 10-Q (March 1989), File No. 1-7316).

10.3.3.9   Twenty-seventh Agreement to 10.3.3 as amended October 1, 1990
           (Exhibit 3 to the CES 1990 Form 10-K, File No. 1-7316).

10.3.3.10  Twenty-eighth Agreement to 10.3.3 as amended September 15, 1992
           (Exhibit 1 to the CES Form 10-Q (September 1994), File No. 1-7316).

10.3.3.11  Twenty-ninth Agreement to 10.3.3 as amended May 1, 1993 (Exhibit 2
           to the CES Form 10-Q (September 1994), File No. 1-7316).

10.3.4     Guarantee Agreement by CEL (as guarantor) and MYA Fuel Company (as
           initial lender) covering the unconditional guarantee of a portion
           of the payment obligations of Maine Yankee Atomic Power Company
           under a loan agreement and note initially between Maine Yankee and
           MYA Fuel Company (Exhibit 3 to the CEL Form 10-K for 1985, File No.
           2-7909). 

Exhibit 21. Subsidiaries of the Registrant

             Incorporated by reference to Exhibit 1 to the Parent's 1997
             Annual Report on Form 10-K, File No. 1-7316.

Exhibit 27. Financial Data Schedule

             Filed herewith as Exhibit 2 is the Financial Data Schedule for
             the twelve months ended December 31, 1998.

(b) Reports on Form 8-K

             One report on Form 8-K was filed during the three months ended
             December 31, 1998.  The report was filed on December 10, 1998 for
             an event first reported on December 7, 1998 regarding the planned
             merger between the Parent and BEC Energy.
<PAGE>
<PAGE 88>


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS



To the Board of Trustees of Commonwealth Energy System:


    We have audited, in accordance with generally accepted auditing standards,
the consolidated financial statements of Commonwealth Energy System included
in this Form 10-K and have issued our report thereon dated February 18, 1999. 
Our audits were made for the purpose of forming an opinion on those consoli-
dated financial statements taken as a whole.  The schedules listed in Part IV,
Item 14 of this Form 10-K are presented for purposes of complying with the
Securities and Exchange Commission's rules and are not part of the basic
consolidated financial statements.  These schedules have been subjected to the
auditing procedures applied in the audits of the basic consolidated financial
statements and, in our opinion, fairly state in all material respects the
financial data required to be set forth therein in relation to the basic
consolidated financial statements taken as a whole.


                                           ARTHUR ANDERSEN LLP

Boston, Massachusetts
February 18, 1999.

<PAGE>
<PAGE 89>

<TABLE>                                                                                                       SCHEDULE I
                                                   COMMONWEALTH ENERGY SYSTEM
                       INVESTMENTS IN, EQUITY IN EARNINGS OF, AND DIVIDENDS RECEIVED FROM RELATED PARTIES
                                              FOR THE YEAR ENDED DECEMBER 31, 1998
                                                     (Dollars in Thousands)
<CAPTION>                               Balance at                                                   Balance at
                                    Beginning of Year        Additions         Deductions            End of Year       Notes
                                    Number                 Equity                                 Number              Receive-
                                      of                     in    Other   Distribution Other      of                  able
<S>                                 Shares   Investment   Earnings  (A)    of Earnings   (B)      Shares  Investment     (C)    
SUBSIDIARIES CONSOLIDATED:        <C>        <C>         <C>      <C>      <C>          <C>      <C>      <C>         <C>
 (All issues are common stock)
   Cambridge Electric Light Co.      346,600   $ 48,225   $ 8,821   $ -     $ 4,246     $ -      346,600   $ 52,800   $    -
   COM/Energy Steam Co.               25,500      3,508     1,119     -         765       -       25,500      3,862        -
   Canal Electric Co.              1,523,200     99,531   199,117     -      10,282       -    1,523,200    288,366        - 
   Commonwealth Gas Co.            2,857,000    116,035    13,269     -      12,142       -    2,857,000    117,162        - 
   Darvel Realty Trust                    26      1,053       -       -         -         -           26      1,053        - 
   COM/Energy Freetown Rlty.               1      4,684      (553)    -         -         -            1      4,131      2,255
   COM/Energy Research Park Rlty.          1        931     9,915     -       9,000       -            1      1,846        860
   COM/Energy Cambridge Rlty.              1         38        (8)    -         -         -            1         30        - 
   COM/Energy Acushnet Rlty.               1        701       119     -         -         -            1        820        - 
   COM/Energy Services Co.             3,250        284        42     -         -         -        3,250        326        - 
   Commonwealth Electric Co.       2,043,972    180,204    15,109     -      10,118       -    2,043,972    185,195        -  
   Hopkinton LNG Corp.                 5,000      3,882       546     -         275       -        5,000      4,153        165
   Advanced Energy Systems, Inc.         100      1,017       837  40,280       -         -          100     42,134        -
   COM/Energy Resources, Inc.            100         41         8     -         -         -          100         49        -
   COM/Energy Marketing, Inc.            100        442    (1,385)    -         -         -          100       (943)     3,440
   COM/Energy Technologies, Inc.         100      2,384    (3,062)  4,200       -         -          100      3,522      2,290
                                               $462,960   243,894   44,480  $46,828     $ -                $704,506    $ 9,010
OTHER INVESTMENTS:
 (Accounted for by the equity method)
   Nuclear Electric Power Companies   52,454   $10,368    $ 1,650      -    $ 1,626     $ -       52,454   $ 10,392
   Hydro-Quebec Phase II              127,034     3,075       454      -        468      261     116,722      2,800
   Other Investments                     -          324       -        515      -         -          -          839
<FN>                                           $ 13,767   $ 1,278      296  $   971     $261               $ 14,031
NOTES:
        (A) Additional investment.
        (B) In 1998, New England Hydro-Transmission Company, Inc. repurchased 8.1% (10,249.2 shares) of its outstanding
            shares.  Canal Electric Company  received proceeds of $145,028 ($14.15 per share) and has included this amount
            with dividends.  Also in 1998, New  England Hydro-Transmission Corporation repurchased 10.1% (63.2 shares) of its
            outstanding shares.  Canal  Electric Company received proceeds of $115,910 (1,833.92 per share) and has included
            this amount with dividends.
        (C) Notes are written for 11 months and 29 days.  Interest is at the prime rate and is adjusted for changes in the
            rate during the term of the notes.
/TABLE
<PAGE>
<PAGE 90>
<TABLE>
                                                                                                              SCHEDULE I
                                                   COMMONWEALTH ENERGY SYSTEM
                       INVESTMENTS IN, EQUITY IN EARNINGS OF, AND DIVIDENDS RECEIVED FROM RELATED PARTIES
                                              FOR THE YEAR ENDED DECEMBER 31, 1997
                                                     (Dollars in Thousands)
<CAPTION>                               Balance at                                                   Balance at
                                    Beginning of Year        Additions         Deductions            End of Year       Notes
                                    Number                 Equity                                 Number              Receive-
                                      of                     in    Other   Distribution Other      of                  able
<S>                                 Shares   Investment   Earnings  (A)    of Earnings   (B)      Shares  Investment     (C)    
SUBSIDIARIES CONSOLIDATED:        <C>        <C>         <C>      <C>      <C>          <C>      <C>      <C>         <C>
 (All issues are common stock)
   Cambridge Electric Light Co.      346,600   $ 45,851   $ 5,216   $  -    $ 2,842     $ -      346,600   $ 48,225   $  7,500
   COM/Energy Steam Co.               25,500      3,194     1,265      -        951       -       25,500      3,508        375
   Canal Electric Co.              1,523,200     99,021    14,828      -     14,318       -    1,523,200     99,531        - 
   Commonwealth Gas Co.            2,857,000    110,020    15,443     -       9,428       -    2,857,000    116,035        - 
   Darvel Realty Trust                    26      1,001        52      -        -         -           26      1,053        - 
   COM/Energy Freetown Rlty.               1      5,031      (347)    -         -         -            1      4,684      1,730
   COM/Energy Research Park Rlty.          1        877       582      -        528       -            1        931        - 
   COM/Energy Cambridge Rlty.              1         43        (5)    -         -         -            1         38        - 
   COM/Energy Acushnet Rlty.               1        694        62      -         55       -            1        701        - 
   COM/Energy Services Co.             3,250        262        22      -        -         -        3,250        284        - 
   Commonwealth Electric Co.       2,043,972    175,545    16,923      -     12,264       -    2,043,972    180,204        -  
   Hopkinton LNG Corp.                 5,000      3,881       549      -        548       -        5,000      3,882        650
   Advanced Energy Systems, Inc.         -          -        (904)  1,921       -         -          100      1,017        -
   COM/Energy Resources, Inc.            -          -         (60)    101       -         -          100         41        -
   COM/Energy Marketing, Inc.            -          -        (758)  1,200       -         -          100        442        -
   COM/Energy Technologies, Inc.         -          -        (916)  3,300       -         -          100      2,384        -  
                                               $445,420   $51,952   $6,522  $40,934     $ -                $462,960    $ 9,795
OTHER INVESTMENTS:
 (Accounted for by the equity method)
   Nuclear Electric Power Companies  52,454    $10,046    $ 1,045      -    $   723     $ -       52,454   $ 10,368
   Hydro-Quebec Phase II             137,329      3,321       233      -        248      231     127,034      3,075
   Other Investments                     -           28       -        296      -         -          -          324
<FN>                                           $ 13,395   $ 1,278      296  $   971     $231               $ 13,767
NOTES:
        (A) Additional investment.
        (B) In 1997, New England Hydro-Transmission Company, Inc. repurchased 7.5% (10,249.2 shares) of its outstanding
            shares.  Canal Electric Company  received proceeds of $145,539 ($14.20 per share) and has included this amount
            with dividends.  Also in 1997, New  England Hydro-Transmission Corporation repurchased 6.85% (46.124 shares) of
            its outstanding shares.  Canal  Electric Company received proceeds of $85,207 (1,847.46 per share) and has
            included this amount with  dividends.
        (C) Notes are written for 11 months and 29 days.  Interest is at the prime rate and is adjusted for changes in the
            rate during the term of the notes.
/TABLE
<PAGE>
<PAGE 91>
<TABLE>

                                                                                                               SCHEDULE I
                                                   COMMONWEALTH ENERGY SYSTEM
                       INVESTMENTS IN, EQUITY IN EARNINGS OF, AND DIVIDENDS RECEIVED FROM RELATED PARTIES
                                              FOR THE YEAR ENDED DECEMBER 31, 1996
                                                     (Dollars in Thousands)

<CAPTION>                                   Balance at                                            Balance at
                                        Beginning of Year    Additions      Deductions            End of Year    
                                        Number                 Equity                          Number                  Notes
                                          of                     in     Distribution  Other     of                   Receivable
                                        Shares   Investment   Earnings  of Earnings    (B)     Shares   Investment       (A)   
<S>                                   <C>        <C>         <C>        <C>           <C>     <C>       <C>          <C>
SUBSIDIARIES CONSOLIDATED:
 (All issues are common stock)
   Cambridge Electric Light Company     346,600  $ 44,179     $ 5,120      $ 3,448      $ -     346,600  $ 45,851     $  4,665
   COM/Energy Steam Company              25,500     3,539       1,583        1,928        -      25,500     3,194        2,155
   Canal Electric Company             1,523,200    98,471      16,574       16,024        -   1,523,200    99,021        5,620
   Commonwealth Gas Company           2,857,000   109,659      16,789       16,428        -   2,857,000   110,020        5,495
   Darvel Realty Trust                       26     1,055          75          129        -          26     1,001          -
   COM/Energy Freetown Realty                 1     5,477        (446)         -          -           1     5,031        1,305
   COM/Energy Research Park Realty            1       739         461          323        -           1       877          -
   COM/Energy Cambridge Realty                1        48          (5)         -          -           1        43          -
   COM/Energy Acushnet Realty                 1       575         119          -          -           1       694          -
   COM/Energy Services Company            3,250       337         (27)          48        -       3,250       262          -
   Commonwealth Electric Company      2,043,972   168,919      19,605       12,979        -   2,043,972   175,545        2,240
   Hopkinton LNG Corp.                    5,000     3,893         548          560        -       5,000     3,881        1,015
                                                 $436,891     $60,396      $51,867      $ -              $445,420      $22,495

OTHER INVESTMENTS:
 (Accounted for by the equity method)
   Nuclear Electric Power Companies      52,454  $  9,814     $ 1,059      $   827      $ -      52,454  $ 10,046
   Hydro-Quebec Phase II                137,391     3,372         498          436       113    137,329     3,321
   Other Investments                        -          28         -            -          -         -          28
                                                 $ 13,214     $ 1,557      $ 1,263      $113             $ 13,395
<FN>
NOTES:  (A) Notes are written for 11 months and 29 days.  Interest is at the prime rate and is adjusted for changes in the
            rate during the term of the notes.
        (B) In 1996, New England Hydro-Transmission Corporation repurchased 6.52% of their outstanding shares at $1,831.30
            per share.  Canal Electric Company received $112,616 for the repurchase of 61.495 shares, and has included this
            amount with dividends.
/TABLE
<PAGE>
<PAGE 92>


                                                                 SCHEDULE II

                           COMMONWEALTH ENERGY SYSTEM

                        VALUATION AND QUALIFYING ACCOUNTS

              FOR THE YEARS ENDED DECEMBER 31, 1998, 1997 AND 1996

                             (Dollars in Thousands)


                                       Additions       
                   Balance at   Provision                  Deductions   Balance
                   Beginning    Charged to                  Accounts    at End
Description         of Year     Operations   Recoveries    Written Off  of Year


                                      Year Ended December 31, 1998   

Allowance for
  Doubtful Accounts  $9,408      $6,613        $2,265        $ 9,202    $9,084


                                      Year Ended December 31, 1997   

Allowance for
  Doubtful Accounts  $8,324      $8,638        $2,085        $ 9,639    $9,408


                                      Year Ended December 31, 1996   

Allowance for
  Doubtful Accounts  $8,040      $7,152        $1,866        $ 8,734    $8,324

<PAGE>
<PAGE 93>


                           COMMONWEALTH ENERGY SYSTEM

                      FORM 10-K          DECEMBER 31, 1998

                                   SIGNATURES

     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized.

                                           COMMONWEALTH ENERGY SYSTEM   
                                                 (Registrant)


                                  By:    R. D. WRIGHT                   
                                         Russell D. Wright, President and
                                         Chief Executive Officer

     Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the date indicated.

Principal Executive Officer:

R. D. WRIGHT                                        March 25, 1999
Russell D. Wright,
President and Chief Executive Officer

Principal Financial and Accounting Officer:

JAMES D. RAPPOLI                                    March 25, 1999
James D. Rappoli,
Financial Vice President and Treasurer

A majority of the Board of Trustees:

SHELDON A. BUCKLER                                  March 25, 1999
Sheldon A. Buckler, Chairman of
    the Board

                                                    March   , 1999
Kevin C. Bryant, Trustee

PETER H. CRESSY                                     March 25, 1999
Peter H. Cressy, Trustee

B. L. FRANCIS                                       March 25, 1999
Betty L. Francis, Trustee

FRANKLIN M. HUNDLEY                                 March 25, 1999
Franklin M. Hundley, Trustee
<PAGE>
<PAGE 94>


                           COMMONWEALTH ENERGY SYSTEM

                      FORM 10-K          DECEMBER 31, 1998

                                   SIGNATURES
                                   (Continued)


                                                    March   , 1999
William J. O'Brien, Trustee

MICHAEL C. RUETTGERS                                March 25, 1999
Michael C. Ruettgers, Trustee

G. L. WILSON                                        March 25, 1999
Gerald L. Wilson, Trustee

R. D. WRIGHT                                        March 25, 1999
Russell D. Wright, Trustee

<PAGE>
<PAGE 95>



                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS




   As independent public accountants, we hereby consent to the incorporation
by reference of our reports included in this Form 10-K into the System's
previously filed Registration Statements on Form S-8 File No. 33-57467 and on
Form S-3 File No. 33-55593.  It should be noted that we have not audited any
financial statements of the System subsequent to December 31, 1998 or per-
formed any audit procedures subsequent to the date of our report.



                                              ARTHUR ANDERSEN LLP

Boston, Massachusetts
March 31, 1999.



<TABLE> <S> <C>

<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from the
balance sheet, statement of income and statement of cash flows contained in
Form 10-K of Commonwealth Energy System for the fiscal year ended December 31,
1998 and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<CIK> 0000071304
<NAME> COMMONWEALTH ENERGY SYSTEM
<MULTIPLIER> 1,000
       
<S>                            <C>
<FISCAL-YEAR-END>              DEC-31-1998
<PERIOD-END>                   DEC-31-1998
<PERIOD-TYPE>                         YEAR
<BOOK-VALUE>                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>        1,019,324
<OTHER-PROPERTY-AND-INVEST>         14,031
<TOTAL-CURRENT-ASSETS>             285,711
<TOTAL-DEFERRED-CHARGES>           271,583
<OTHER-ASSETS>                     172,239
<TOTAL-ASSETS>                   1,762,888
<COMMON>                            43,081
<CAPITAL-SURPLUS-PAID-IN>          112,170
<RETAINED-EARNINGS>                294,341
<TOTAL-COMMON-STOCKHOLDERS-EQ>     449,592
               11,380
                              0
<LONG-TERM-DEBT-NET>               385,602
<SHORT-TERM-NOTES>                       0
<LONG-TERM-NOTES-PAYABLE>            2,000
<COMMERCIAL-PAPER-OBLIGATIONS>           0
<LONG-TERM-DEBT-CURRENT-PORT>       57,123
              820
<CAPITAL-LEASE-OBLIGATIONS>         10,982
<LEASES-CURRENT>                     1,340
<OTHER-ITEMS-CAPITAL-AND-LIAB>     844,049
<TOT-CAPITALIZATION-AND-LIAB>    1,762,888
<GROSS-OPERATING-REVENUE>          980,115
<INCOME-TAX-EXPENSE>                26,253
<OTHER-OPERATING-EXPENSES>         865,002
<TOTAL-OPERATING-EXPENSES>         891,255
<OPERATING-INCOME-LOSS>             88,860
<OTHER-INCOME-NET>                  12,453
<INCOME-BEFORE-INTEREST-EXPEN>     101,313
<TOTAL-INTEREST-EXPENSE>            46,909
<NET-INCOME>                        54,404
            930
<EARNINGS-AVAILABLE-FOR-COMM>       53,474
<COMMON-STOCK-DIVIDENDS>            34,928
<TOTAL-INTEREST-ON-BONDS>           37,435
<CASH-FLOW-OPERATIONS>              81,949
<EPS-PRIMARY>                         2.48
<EPS-DILUTED>                         2.48
        


</TABLE>


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