COMMONWEALTH ENERGY SYSTEM
10-K405, 1997-03-31
ELECTRIC & OTHER SERVICES COMBINED
Previous: NEW BRUNSWICK SCIENTIFIC CO INC, 4, 1997-03-31
Next: DAVIS NEW YORK VENTURE FUND INC, N-30D, 1997-03-31



<PAGE 1>


                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 [FEE REQUIRED]

       For the fiscal year ended December 31, 1996

                                      OR

[   ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
       EXCHANGE ACT OF 1934 [NO FEE REQUIRED]

       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 Stock 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 17, 1997:  $473,652,872

Common Shares outstanding at March 17, 1997:  21,529,676 shares

Document Incorporated by Reference               Part in Form 10-K

Notice of 1997 Annual Meeting and
Proxy Statement, dated March 28, 1997
(pages as specified herein)                      Part III

              List of Exhibits begins on page 53 of this report.

<PAGE 2>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                               TABLE OF CONTENTS

                                    PART I
                                                                  PAGE
Item   1. Business...............................................   3
             General.............................................   3
             Electric Power Supply...............................   4
             Power Supply Commitments and Support Agreements.....   7
             Electric Fuel Supply................................   7
             Nuclear Fuel Supply and Disposal....................   8
             Gas Supply..........................................   9
             Rates, Regulation and Legislation...................  10
             Competition.........................................  14
             Segment Information.................................  15
             Environmental Matters...............................  15
             Construction and Financing..........................  15
             Employees...........................................  15

Item  2.  Properties.............................................  16

Item  3.  Legal Proceedings......................................  16

Item  4.  Submission of Matters to a Vote of Security Holders....  16

                                    PART II
Item  5.  Market for the Registrant's Securities and Related
          Stockholder Matters....................................  17

Item  6.  Selected Financial Data................................  18

Item  7.  Management's Discussion and Analysis of Financial
          Condition and Results of Operations....................  19

Item  8.  Financial Statements and Supplementary Data............  27

Item  9.  Changes in and Disagreements with Accountants on
          Accounting and Financial Disclosure....................  27

                                   PART III
Item 10.  Trustees and Executive Officers of the Registrant......  50

Item 11.  Executive Compensation.................................  51

Item 12.  Security Ownership of Certain Beneficial Owners and
          Management.............................................  51

Item 13.  Certain Relationships and Related Transactions.........  52

                                    PART IV
Item 14.  Exhibits, Financial Statement Schedules and Reports
          on Form 8-K............................................  52

Signatures........................................................ 76

<PAGE 3>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                                    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 "System" and,
together with its subsidiaries, is collectively referred to as "the system."

      The operating utility subsidiaries of the System are engaged in the
generation, transmission and distribution of electricity and the distribution
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 System also owns all of the
stock of a steam distribution company (COM/Energy Steam Company), five real
estate trusts, a liquefied natural gas (LNG) and vaporization facility
(Hopkinton LNG Corp.) and two new subsidiaries that are pursuing energy-
related business opportunities.  Subsidiaries of the System have common
executive and financial management and 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.  Two new subsidiaries,
COM/Energy Enterprises, Inc. and COM/Energy Resources, Inc., were established
to pursue business opportunities created by the restructuring of the electric
and gas industries and the emergence of new energy technologies.

      Each of the operating utility subsidiaries serves retail customers
except for Canal Electric Company (Canal) which operates an electric
generating station located in Sandwich, Massachusetts.  The station consists
of Canal Unit 1, an oil-fired steam electric generating unit that is wholly-
owned by Canal and has a rated capacity of 566 MW, and Canal Unit 2, a steam



<PAGE 4>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

electric generating unit that was converted to dual-fuel capability (oil and
natural gas) in 1996 that is jointly-owned by Canal and Montaup Electric
Company (Montaup) (an unaffiliated company) and has a rated capacity of 575.8
MW.  Canal Unit 2 is 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 316,000 year-round and 46,900 seasonal customers in 41
communities in eastern 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 234,000 customers in 49 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
system companies 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.

      Steam, which is produced by Cambridge Electric in connection with the
generation of electricity, is 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 system companies is highly
diversified.  The larger industrial customers include high-technology firms
and manufacturers of such products as photographic equipment and supplies,
rubber products, textiles, wire and other fastening devices, abrasives and
grinding wheels, candy, copper and alloys, and chemicals.  Among customers
served is a major educational institution, Harvard University (Harvard).  In
March 1994, Cambridge Electric was successful in negotiating a seven-year
service agreement with Harvard whose sales in 1996, 1995 and 1994 accounted
for approximately 2.0%, 2.1% and 1.6%, respectively, of the system's total
unit sales.

      Electric Power Supply

      To satisfy demand requirements and provide required reserve capacity,
the system supplements 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 Massachusetts Department of Public Utilities (DPU).

      System companies own generating facilities with a net capability at the
time of peak load totaling 1,029.8 MW including 566 MW provided by Canal Unit
1, of which three-quarters (424.5 MW) is sold to neighboring utilities under
long-term contracts, and 287.9 MW provided by Canal Unit 2.  Another 126.3 MW
is provided by various smaller system units.  Of the 555.7 MW available to the
<PAGE 5>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

system, 63.3 MW are used principally for peaking purposes.  A 3.52% ownership
interest in the Seabrook 1 nuclear power plant provides 40.8 MW of capability
to the system and Central Maine Power Company's Wyman Unit 4, an oil-fired
facility in which the system has a 1.4% joint-ownership interest, provides 8.8
MW.  Additionally, in 1993, Canal extended an agreement with New England Power
Company (NEP) whereby 50 MW of Canal Unit 2 (previously 20 MW) is exchanged
for 50 MW of Bear Swamp Unit Nos. 1 and 2 through April 1997.  The Bear Swamp
Units are pumped storage hydroelectric generating facilities.  These contracts
are designed to reduce the system's reliance on oil.

      In addition, through Canal's equity ownership in Hydro-Quebec Phase II,
the system 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.  The system also receives 67 MW from a waste-to-energy
plant and has entitlements totaling 23.8 MW through contracts with four
hydroelectric suppliers.

      Pursuant to a restructured Power Sale Agreement (PSA), effective January
1, 1995, a non-utility generator (NUG) ceased supplying capacity and energy to
the system.  The restructured PSA defers the system's obligation to purchase
the NUG's capacity and energy for a maximum of six years.  In addition, on
January 27, 1995, the DPU approved the buy-out of a PSA between Commonwealth
Electric and another NUG, effective April 12, 1995.  This buy-out is expected
to save Commonwealth Electric's customers approximately $37 million over the
next 20 years.

      The system anticipates providing for future peak load plus reserve
requirements through existing system generation, including purchasing
available capacity from neighboring utilities, non-utility generators, power
marketers and power brokers.

      The system also has available 115.6 MW from three operating nuclear
units in which system distribution companies have life-of-the-unit contracts
for power.  Information with respect to these units is as follows:

                                      Maine       Vermont
                                      Yankee       Yankee    Pilgrim

Year of Initial Operation              1972         1972       1972
Contract Expiration Date               2008         2012       2012
Equity Ownership (%)                   4.00         2.50        -
Plant Entitlement (%)                  3.59         2.25       11.0
Plant Capability (MW)                 870.0        496.0      664.7
System Entitlement (MW)                31.2         11.2       73.2

      In July 1996, Connecticut Yankee Atomic Power Company (Connecticut
Yankee), which operates the Connecticut Yankee nuclear power plant, took the
unit out of service in connection with certain safety-related issues and
refueling.  On December 4, 1996, the plant's Board of Directors, following an
economic evaluation of continuing to operate the plant over the remaining ten
years of its current license life compared to closing the plant and incurring
replacement power for the same period, voted to permanently shutdown the
plant.  In 1992, Yankee Atomic Electric Company (Yankee Atomic) permanently

<PAGE 6>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

discontinued power operation and began decommissioning the Yankee Nuclear
Power Station located in Rowe, Massachusetts.  For additional information,
refer to Note 4(e) of the Notes to Consolidated Financial Statements filed
under Item 8 of this report.

      One of the operating nuclear generating facilities, located in
Wiscasset, Maine and operated by Maine Yankee Atomic Power Company (Maine
Yankee), experienced two outages due to design and regulatory issues during
1996.  On July 20, 1996 the unit came off line to address a design issue on
the primary component cooling system.  The unit remained off-line until
September 2, 1996 to also address issues related to compliance with the
Nuclear Regulatory Commissions (NRC) General Letter 96-01 that addresses
surveillance testing of safety system components.

      The second outage for Maine Yankee began on December 5, 1996 to correct
technical issues associated with a Confirmatory Action Letter issued by the
NRC.  Maine Yankee used this outage as an opportunity to breach the reactor
and identify the specific fuel assemblies which were detected leaking earlier
in the operating cycle.  They identified eight assemblies with a total of
seventy-five fuel rods leaking, and found the most recent load of fuel
unacceptable for continued operation of the plant.  Additional cable
separation issues were also identified and the NRC has expanded the
requirements of the Confirmatory Action Letter that Maine Yankee must meet
prior to restart.  The restart date of the unit has not yet been determined.

      Cambridge Electric, Canal and Commonwealth Electric, together with other
electric utility companies in the New England area, are members of NEPOOL,
which was formed in 1971 to provide for the joint planning and operation of
electric systems throughout New England.

      NEPOOL 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.

      NEPOOL, on behalf of its members entered into an Interconnection Agree-
ment 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 have also entered
into an Energy Contract and an Energy Banking Agreement; the former obligates
Hydro-Quebec to offer NEPOOL participants up to 33 million MWH of surplus
energy during an eleven-year term that began September 1, 1986 and the latter
provides for energy transfers between the two systems.  NEPOOL has also
entered into Phase II agreements for an additional purchase from Hydro-Quebec
of 7 million MWH per year for a twenty-five year period which began in late
1990.

      Canal 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 $12.5 million at December 31,
1996.  In addition, Canal has an equity interest in Phase II which amounted to
$3.3 million in 1996 and $3.4 million in 1995.
<PAGE 7>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      The System'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 NEPOOL participants in planning
future additions are determined by NEPOOL to meet the reliability criteria
recommended by the NPCC.  The system 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, 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 system commitments
under long-term power contracts, refer to Note 4(d) of Notes to Consolidated
Financial Statements filed under Item 8 of this report.

      The system's 3.52% interest in the Seabrook nuclear power plant is owned
by Canal to provide for a portion of the capacity and energy needs of Cam-
bridge Electric and Commonwealth Electric.  For additional information
concerning Seabrook 1, refer to Note 4(b) of Notes to Consolidated Financial
Statements filed under Item 8 of this report.

      Electric Fuel Supply

      (a) Oil and Natural Gas

      Of the system's total energy requirement for 1996, approximately 21% was
generated using imported residual oil and approximately 38% was generated
using natural gas.

      Effective October 1, 1996, Canal executed a fifteen-month contract with
Enron Liquid Fuels, Inc. (Enron) for the purchase of 1% sulfur residual fuel
oil.  The contract provides for delivery of a set percentage of Canal's fuel
requirement, the balance (a maximum of 35%) to be met by spot purchases or by
Enron at the discretion of Canal.  Through December 31, 1996, 17.6% of Canal's
total requirements have been met by lower-cost, spot purchases resulting in
savings to its customers.

      Energy Supply & Credit Corporation (ESCO Massachusetts, Inc.) operates
Canal's fuel oil terminal and manages the receipt of and payment for fuel oil
under assignment of Canal's supply contracts to ESCO Massachusetts, Inc. 
Residual fuel oil in the terminal's shore tanks is held in inventory by ESCO
Massachusetts, Inc. and delivered upon demand to Canal's two day tanks.
<PAGE 8>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      Fuel oil storage facilities at the Canal site have a capacity of
1,199,000 barrels, representing approximately 60 days of normal operation of
the two units.  During 1996, ESCO Massachusetts, Inc. maintained an average
daily inventory of 421,000 barrels of fuel oil, which represents approximately
thirty-four days of normal operation of the two units.  This supply is
maintained by tanker deliveries.

      During 1996 Unit 2 was converted to dual-fuel capability, residual fuel
oil and natural gas.  During September and October 1996, Unit 2 burned
approximately 1.6 million MMBTU's of natural gas, saving customers
approximately $1.1 million.  Natural gas was not burned at Unit 2 during
November and December as the cost of residual fuel oil was more economical
during that period.  Canal anticipates that its dual fuel capability will
result in future savings as the least expensive fuel is utilized.

      Canal has entered into a contract with Duke/Louis Dreyfus, L.L.C. to
provide 100% of the natural gas requirements of Unit 2 through December 31,
1997.

      (b) Nuclear Fuel Supply and Disposal

      Approximately 24% of the system's total energy requirement for 1996 was
generated by nuclear plants.  The nuclear fuel contract and inventory
information for Seabrook 1 has been furnished to the system by North Atlantic
Energy Services Corporation (NAESCO), the plant manager responsible for
operation of the unit.  Seabrook's requirement for nuclear fuel components are
100% covered through 1999 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 high level
wastes and 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 all of 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 temporary storage 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 all
spent fuel expected to be accumulated through at least the year 2010.
<PAGE 9>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      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 ranging
from less than one year to three or more years.  The vendors vary from
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
combination of existing and new agreements which are the result of 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 DPU and hearings were completed in April 1993.  The DPU
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, 1996, there were 66 customers using
this transportation service, accounting for 6,192 BBTU or approximately 11.8%
of system throughput.

      Hopkinton LNG Facility

      A portion of Commonwealth Gas' supply during the heating season is
provided by Hopkinton LNG Corp. (Hopkinton), a wholly-owned subsidiary of the 
System.  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 and 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.  Commonwealth Gas and Hopkinton
are currently evaluating the contracts to determine if amendments to the
contracts should be negotiated in light of the ongoing deregulation of the
natural gas industry.  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
<PAGE 10>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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 and Regulation and Legislation

      Certain of the System's utility subsidiaries operate under the
jurisdiction of the DPU, 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. 
However, on August 16, 1995, the DPU issued an order calling for the
restructuring of the electric utility industry in Massachusetts.  For further
information pertaining to the effects of this restructuring order on the
System's utility companies' rates, regulation and legislation, refer to the
"Electric Industry Restructuring" section of Management's Discussion and
Analysis of Financial Condition and Results of Operations filed under Item 7
of this report.

      (a) Wholesale Rate Proceedings

      Cambridge Electric provides power supply and transmission services to
its FERC-jurisdictional wholesale customers.  Cambridge Electric requires FERC
approval to change its wholesale rates, including those to the Municipal Light
Department of the Town of Belmont, Massachusetts (Belmont), a "partial
requirements" customer since 1986.  Since February 1993, Belmont has taken
power supply service under a FERC approved Net Requirements Power Supply
Agreement.

      In 1993, Cambridge Electric and Belmont began negotiations for a new
transmission service agreement.  The negotiations were not successful.  On
June 29, 1994, Cambridge Electric filed for FERC approval of a new
transmission service agreement with Belmont.  The FERC accepted the rates
effective January 25, 1995, subject to refund.  At the same time, an
investigation was opened by the FERC to determine the reasonableness of both
the existing transmission tariff rates to Belmont and the proposed trans-
mission service agreement with Belmont.  Both Belmont and FERC staff
intervened in the investigation.  Cambridge Electric filed its case with the
FERC on October 25, 1994 and evidentiary hearings were held in March 1995.

      An Initial Decision (ID) of the Presiding Administrative Law Judge was
issued on September 14, 1995.  In the ID the Administrative Law Judge found
that Cambridge Electric's existing transmission tariff rates were just and
reasonable.  The Administrative Law Judge identified a number of revisions to
the filed transmission service agreement which effectively reduced the rates
to Belmont.  In October 1995, the parties filed briefs on exceptions to the
Administrative Law Judge's ID.  Cambridge Electric awaits final FERC action on
this investigation.
<PAGE 11>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      On March 29, 1995, the FERC issued two notices of proposed rulemaking
concerning open access transmission (RM95-8-000) and stranded costs (RM94-7-
001).  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 a Section 206 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
interrelated 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
that conform to the FERC pro-forma tariff contained in Order No. 888.  On July
9, 1996, Cambridge Electric and Commonwealth Electric filed tariffs 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 December 31, 1996, Cambridge Electric and Commonwealth Electric filed
market-based power sales tariffs with the FERC which received FERC approval on
February 27, 1997.  The Companies seek authorization to make wholesale power
sales at fully negotiated rates.  In addition, the Companies requested
authorization to participate as brokers in the sale and purchase of
electricity.

      (b) Automatic Adjustment Clauses

          Electric

      Both Commonwealth Electric and Cambridge Electric have Fuel Charge rate
schedules which generally allow for current recovery, from retail customers,
of fuel used in electric production, purchased power and transmission costs. 
These schedules require a quarterly computation and DPU 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 do not match actual costs for that period, an
appropriate adjustment is reflected in the calculation of the next subsequent
calendar quarter decimal.

      Cambridge Electric and Commonwealth Electric collect a portion of
capacity-related purchased power costs associated with certain long-term power
arrangements through base rates.  The recovery mechanism for these costs uses
a per kilowatthour (KWH) factor that is calculated using historical (test-
period) capacity costs and unit sales.  This factor is then applied to current
monthly KWH sales.  When current period capacity costs and/or unit sales vary
from test-period levels, Cambridge Electric and Commonwealth Electric have
experienced a revenue excess or shortfall that has had a significant impact on
net income.  However, as part of the settlement agreements approved by the DPU
in May 1995, Cambridge Electric and Commonwealth Electric can now defer these
<PAGE 12>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

costs (within certain limits) which neutralizes their sometimes volatile
effect on net income.

      Both Commonwealth Electric and Cambridge Electric have separately stated
Conservation Charge rate schedules which allow for current recovery, from
retail customers, of conservation and load management costs.

          Gas

      Commonwealth Gas has a Standard Seasonal Cost of Gas Adjustment rate
schedule (CGA) which provides for the recovery, from firm customers, of
purchased gas and conservation and load management costs not collected through
base rates.  These schedules, which require DPU approval, are estimated semi-
annually and include credits for gas pipeline refunds and profit margins
applicable to interruptible and other non-firm sales.  Actual gas costs are
reconciled annually as of October 31 and any difference is included as an
adjustment in the calculation of the decimals for the two subsequent six-month
periods.

      Periodically, Commonwealth Gas is required to file a long-range forecast
of the energy needs and requirements of its market area and annual supplements
thereto with the DPU.  To approve this long-range forecast and resource plan,
the DPU must find, among other things, that Commonwealth Gas' projected firm
load is reasonable and based on proven and verifiable forecasting methods and
data, and that Commonwealth Gas assembles its supply portfolio based on a
prudent resource planning process that can be reasonably expected to meet
projected demands on a cost-efficient basis.  Commonwealth Gas filed its
forecast, covering the period November 1996 through October 2001, with the DPU
on December 20, 1996.

      (c) Gas Demand and Transition Costs

      Commonwealth Gas is obligated, as part of its pipeline transportation
and supplier gas purchase contracts, to pay monthly demand charges which are
recovered through the CGA.

      As a direct result of implementation of Order 636, most pipeline
companies are incurring transition costs which include the cost of
restructuring gas supply contracts, the value of facilities that were
supporting the gas sales function and are no longer used and useful for
transportation only services, the cost of contracts with upstream pipeline
companies and various miscellaneous costs.  These costs are billed to
Commonwealth Gas and other local distribution companies.

      Commonwealth Gas is collecting all contract restructuring costs from its
customers through the CGA as permitted by the DPU.

      (d) Retail Choice Pilot Program

      On September 3, 1996, the DPU approved Commonwealth Electric's retail
choice pilot program.  The program is comprised of two components: under
Subscription A, eligible customers have the opportunity to buy their power
<PAGE 13>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

from a supplier other than Commonwealth Electric (an alternative supplier);
under Subscription B, eligible customers continue to buy their power from
Commonwealth Electric, but at prices posted by Commonwealth Electric one day
ahead.  All participating customers will pay Commonwealth Electric a customer
charge, transmission and distribution charges, and an access charge.

      The program is available to Commonwealth Electric's 18 commercial and
industrial customers taking service under one of Commonwealth Electric's
economic development rates.  Subscription A has been filled by 5 customers
having an aggregate load of approximately 15 megawatts.  However, because this
portion of the program is temporarily suspended pending re-bidding of the
power supply, Commonwealth Electric is assisting these customers to qualify
them on Subscription B.  The remaining customers are eligible to participate
in Subscription B.

      The program is designed to allow a limited number of customers the
opportunity to possibly reduce their electric bills while Commonwealth
Electric learns more about real-time pricing and the administrative require-
ments associated with open-market competition.  Through the program,
Commonwealth Electric expects to develop internal procedures for billing and
allocating the costs for providing an alternative supply to its retail
customers, and to develop methods for educating customers regarding retail
choice.  The program is scheduled to continue until December 31, 1997.

      Those customers that find that their selection is not right for them
will be able to return to Commonwealth Electric service at their prior rate.

      (e) Customer Transition Charge

      In September 1995, the DPU 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 will protect remaining
customers from paying certain costs, often referred to as stranded investment
costs, that were incurred in the event that Cambridge Electric's largest
customers discontinue full service, yet still remain connected for back-up and
other services.  These costs include 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 DPU restructuring order which
endorsed, in principle, the recovery of stranded investment costs.

      Through the CTC, Cambridge Electric will initially recover 75% of net
stranded investment 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 is encouraged by the DPU's position on recovery of stranded
investment costs and expects to address recovery of the remaining 25% in its
restructuring filing.
<PAGE 14>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      The Massachusetts Institute of Technology (MIT) appealed the DPU's deci-
sion to the Massachusetts Supreme Judicial Court (the SJC).  Cambridge
Electric is an intervenor in this proceeding.  While no schedule is set for a
decision from the SJC, Cambridge Electric anticipates a decision sometime in
the second quarter of 1997.  At this time, Cambridge Electric is unable to
predict the outcome of this proceeding.  In addition, on February 29, 1996,
the FERC denied a petition filed in January 1996 by MIT, which sought relief
from paying the CTC, on the premise that stranded costs are to be resolved at
the state level.  Cambridge Electric believes that the FERC's action will be
an important factor that the SJC will consider in the appeal process.

      In a previous legal proceeding, on August 27, 1996, the United States
District Court for the District of Massachusetts (District Court) granted the
motions for summary judgement of Cambridge Electric and the DPU and dismissed
the May 1996 complaint filed by MIT.  In its complaint, MIT had alleged that
the CTC approved by the DPU and implemented by Cambridge Electric violated the
Public Utility Regulatory Policies Act of 1978 (PURPA).  In dismissing MIT's
complaint, the District Court found that MIT's complaint involved an
allegation relating to the DPU's application of PURPA, which is not within the
District Court's jurisdiction.

      Competition

      The system continues to develop and implement strategies that deal with
the increasingly competitive environment facing the electric business.  The
inherently high cost of providing energy services in the Northeast has placed
the region at a competitive disadvantage as more customers begin to explore
alternative energy supply options.  Pursuant to its aforementioned Model
Rules, the DPU is proposing to implement programs under which utility and non-
utility generators can sell electricity to customers of other utilities
without regard to previously closed franchise service areas.  In 1994, the DPU
began an inquiry into incentive ratemaking.

      The system's actions in response to the new competitive challenges have
been well received by regulators, business groups and customers.  The system
has developed and will continue to develop innovative pricing mechanisms
designed to retain existing customers, add new retail and wholesale customers
and expand beyond current markets.  For a more detailed discussion of the
DPU's restructuring order, refer to the "Electric Industry Restructuring"
section of Management's Discussion and Analysis of Financial Condition and
Results of Operations filed under Item 7 of this report.

      On February 6, 1997, due to the dramatically changing nature of the
electric and gas industries, the System announced the consolidation of
management personnel of Commonwealth Electric, Commonwealth Gas and COM/Energy
Services Company effective on that date.  COM/Electric and COM/Gas will
continue to operate under their existing company names.  The consolidation
process for these companies will involve the merging of similar functions and
activities to eliminate duplication in order to create the most efficient and
cost-effective operation possible and will ultimately result in the reduction
of up to 300 positions (15%) system-wide.  Through prior work force reductions
and attrition, the system has reduced its full-time work force approximately
23.1% since 1990.  Also, the introduction of advanced technologies in the
<PAGE 15>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

workplace continues to improve customer service and the system's competitive
position.  The system has yet to be significantly impacted by the increase in
competition and, absent a major shift in regulation at the state level,
believes its current business strategy will have a positive impact in the
near-term.

      Segment Information

      System 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.  Other operations of the system include the development and
management of new real estate ventures, the operation of rental properties and
other investment activities and the pursuit of new business opportunities
which do not presently contribute significantly to either revenues or
operating income.

      Reference is made to additional industry segment information in Note 12
of Notes to Consolidated Financial Statements filed under Item 8 of this re-
port.

      Environmental Matters

      The system is subject to laws and regulations administered by federal,
state and local authorities relating to the quality of the environment. 
System compliance with these laws and regulations will require capital
expenditures of $68.8 million from 1997 through 2001 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 the system'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 4(a) of the Notes to
Consolidated Financial Statements filed under Item 8 of this report.

      Employees

      The total number of full-time employees for the system declined 5% to
1,991 in 1996 from 2,096 employees at year-end 1995.  Of the current total,
1,182 (59%) are represented by various collective bargaining units. 
Agreements with two units representing approximately 5% of regular employees
are scheduled to expire in 1997.  Refer to Note 1 of Notes to Consolidated
Financial Statements filed under Item 8 of this report for additional
information regarding employee relations.
<PAGE 16>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

Item 2.    Properties

      The system's principal electric properties consist of Canal Unit 1, a
566 MW oil-fired steam electric generating unit, and its one-half ownership in
Canal Unit 2, a 575.8 MW steam electric generating unit with the ability to
burn both oil and natural gas, both located at Canal Electric's facility in
Sandwich, Massachusetts.

      Cambridge Electric owns and operates two steam electric generating
stations and two gas turbine units located in Cambridge, Massachusetts with a
total capability of 112.5 MW.  In addition, the system has a 3.52% interest
(40.5 MW of capacity) in Seabrook 1 and a 1.4% or 8.8 MW joint-ownership
interest in Central Maine Power Company's Wyman Unit 4.  The system also has
an interest in smaller generating units totaling 77.6 MW used primarily for
peaking and emergency purposes.

      Other electric properties include an integrated system of distribution
lines and substations.  In addition, the system'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, 1996, the electric transmission and distribution system
consisted of 5,803 pole miles of overhead lines, 4,371 cable miles of
underground line, 355 substations and 378,088 active customer meters.

      The principal natural gas properties consist of distribution mains,
services and meters necessary to maintain reliable service to customers.  At
the end of 1996, the gas system included 2,791 miles of gas distribution
lines, 165,926 services and 243,083 customer meters together with the
necessary measuring and regulating equipment.  In addition, the system 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.  The system'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.


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 DPU approving a
customer transition charge that allows Cambridge Electric to recover certain
stranded investment 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 17>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                                   PART II.

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

    (a) Principal Markets

        The System'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.

                                 1996 by Quarter           
                      First     Second     Third     Fourth
            High      $25       $25 3/4    $25 5/8   $24 7/8
            Low        21 15/16  22 3/4     21 1/2    22 1/2

                                 1995 by Quarter           
                      First     Second     Third     Fourth
            High      $20 15/16 $20 3/4    $21 11/16 $23 9/16
            Low        17 13/16  18 7/8     17 11/16  20 1/2

    (b) Number of Shareholders at December 31, 1996

        13,676 shareholders

    (c) Frequency and Amount of Dividends Declared in 1996 and 1995

                   1996                             1995            
                              Per                               Per
                             Share                             Share
        Declaration Date    Amount       Declaration Date     Amount
        March 28, 1996      $ .385       March 23, 1995       $ .375
        June 27, 1996         .385       June 22, 1995          .375
        September 26, 1996    .385       September 28, 1995     .375
        December 19, 1996     .385       December 14, 1995      .375
                            $1.540                            $1.500

    (d) Future dividends may vary depending upon the System's earnings and
        capital requirements as well as financial and other conditions
        existing at that time.
<PAGE 18>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

Item 6. Selected Financial Data



                       1996       1995        1994       1993       1992
                          (Dollars In Thousands Except Common Share Data)

Operating Revenues
  Electric           $  649,678 $  604,980  $  638,150 $  622,039 $  595,112
  Gas                   341,867    306,953     323,568    302,644    294,874
  Steam and other        19,360     17,355      15,867     14,035     14,307
   Total             $1,010,905 $  929,288  $  977,585 $  938,718 $  904,293

Net Income           $   59,175 $   51,396  $   48,968 $   45,834 $   39,897

Common Share Data-
 Earnings per share       $2.70      $2.36       $2.29      $2.18      $1.91
 Dividends declared
   per share              $1.54      $1.50       $1.50      $1.46      $1.46
 Average shares
    outstanding      21,529,676 21,311,836  20,827,562 20,431,228 20,163,736

Total Assets         $1,428,955 $1,392,342  $1,345,032 $1,318,940 $1,273,475

Long-term debt       $  355,305 $  377,181  $  418,307 $  448,893 $  361,092
Redeemable preferred
  share investment       13,020     13,840      14,660     15,480     16,300
Common share
  investment            415,694    390,785     362,997    337,070    315,219
Total Capitalization $  784,019 $  781,806  $  795,964 $  801,443 $  692,611



                                             1996 by Quarter
                                  1st        2nd         3rd        4th
                            (Dollars In Thousands Except Per Share Amounts)

Operating Revenues               $298,614   $222,667   $226,909   $262,715
Operating Income                   36,131     18,608     17,601     24,325
Income Before Interest Charges     38,622     19,863     18,838     24,220
Net Income                         27,907      9,463      8,360     13,445
Earnings per Common Share            1.28        .43        .37        .62
Dividends Declared per
  Common Share                       .385       .385       .385       .385
Closing Price of Common Shares-
  High                           25           25 3/4     25 5/8     24 7/8
  Low                            21 15/16     22 3/4     21 1/2     22 1/2


                                             1995 by Quarter
                                  1st        2nd         3rd        4th
                            (Dollars In Thousands Except Per Share Amounts)

Operating Revenues               $265,225   $208,776   $206,542   $248,745
Operating Income                   30,011     17,237     17,253     30,042
Income Before Interest Charges     31,913     17,738     17,945     28,408
Net Income                         20,933      6,430      7,116     16,917
Earnings per Common Share             .98        .29        .32        .77
Dividends Declared per
  Common Share                       .375       .375       .375       .375
Closing Price of Common Shares-
  High                           20 15/16     20 3/4   21 11/16    23 9/16
  Low                            17 13/16     18 7/8   17 11/16    20 1/2 
<PAGE 19>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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:

                               1996              1995              1994     
                                    Per               Per               Per
                          Amount   Share    Amount   Share    Amount   Share
                           (Dollars in Thousands Except Per Share Amounts)

    Electric...........   $39,667  $1.85    $32,247  $1.52    $32,952  $1.58
    Gas................    16,229    .75     15,352    .72     12,346    .59
    Other..............     2,229    .10      2,687    .12      2,500    .12
        Total..........   $58,125  $2.70    $50,286  $2.36    $47,798  $2.29

    Parent company earnings and dividends on preferred shares were allocated
among the electric, gas and other operations of the system based on the
Parent's equity investment in each segment.  Common share data for 1995 and
1994 has been restated throughout this discussion to reflect the two-for-one
stock split that became effective June 5, 1996.

    1996 versus 1995

    In 1996, earnings applicable to common shares increased $7.8 million
(15.6%) to $58.1 million.  Earnings per share increased $.34 to $2.70.  Return
on average common equity, among the highest in the utility industry, improved
to 14.4% from 13.3% in 1995.  Significant factors that contributed to the
improved earnings included higher firm gas ($.18) and retail electric ($.14)
unit sales, a refund ($.11) associated with a power contract settlement
agreement, lower interest costs ($.09), and the reversal of a reserve for
Canal Electric Company's (Canal) recovery of postretirement benefits costs
($.07).  Partially offsetting these factors were costs related to a five and
one-half month labor dispute ($.11) resolved in September, storm damage from
Hurricane Edouard ($.06), a customer refund ($.05 in 1996 versus $.01 in 1995)
pursuant to a 1995 settlement agreement with the Massachusetts Department of
Public Utilities (DPU) that limits Commonwealth Electric Company's
(Commonwealth Electric) return on equity, as defined in a settlement that
expires in 1997, and the reversal in 1995 of a reserve ($.04) related to a
conservation program settlement in 1995.

    In March 1996, the System's Board of Trustees increased the quarterly
dividend rate per share 2.7% from $.375 to $.385, an annual rate of $1.54. 
Dividends paid to common shareholders in 1996 were $33.2 million, representing
a payout ratio of 57% of 1996 earnings.





<PAGE 20>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

    1995 versus 1994

    In 1995, earnings applicable to common shares increased $2.5 million or
5.2% to $50.3 million.  Earnings per share increased $.07 to $2.36.  Factors
that contributed to the improved earnings were a $3.8 million reduction ($.11)
in other operation expense, the reversal of a reserve related to the system's
energy conservation programs ($.04), and higher steam unit sales ($.01). 
Partially offsetting these factors was an increase in interest charges ($.07)
primarily related to deferred gas costs and, to a lesser extent, higher short-
term interest rates.

    Electric Operations

    In 1996, electric operating revenues increased $44.7 million or 7.4% due
mainly to higher fuel costs of $33.9 million reflecting the increased
availability of Canal's Unit 1 generating facility that was out of service
during the first seven months of 1995 for scheduled maintenance and repairs.
The remainder of the change reflects a $4 million refund associated with a
power contract settlement approved by the Federal Energy Regulatory Commission
(FERC) relative to billing issues in prior years, the impact of higher retail
unit sales ($3.9 million), and the recovery in rates of $1.8 million for
Canal's previously deferred postretirement benefits costs.

    Electric operating revenues in 1995 decreased $32.8 million (5.1%) due
mainly to lower fuel oil costs ($32.6 million) caused by a combination of
scheduled maintenance and other repairs to Canal's Unit 1.  Also contributing
to the decline in revenues were lower conservation and load management (C&LM)
costs ($3.3 million).  Offsetting these declines were increases related to the
recovery of costs associated with a power contract buyout ($3.9 million
including $1.9 million in carrying charges) and the recognition in revenues of
$2 million in carrying charges associated with Commonwealth Electric's fuel
charge stabilization deferral.

    Unit sales (in Megawatthours or MWH) were as follows:
                                          %                   %
                                1996    Change      1995    Change      1994  

    Residential..........    1,802,973   2.9     1,752,430  (1.0)    1,770,095
    Commercial...........    2,430,188  (0.8)    2,450,390   1.8     2,406,077
    Industrial and Other.      449,844   1.1       445,020    -        445,037
        Total Retail.....    4,683,005   0.8     4,647,840   0.6     4,621,209
    Wholesale............    2,721,623  37.9     1,973,543 (48.1)    3,803,786
        Total............    7,404,628  11.8     6,621,383 (21.4)    8,424,995

    In 1996 retail unit sales increased slightly due to approximately 3,700
(1.0%) additional customers, the majority of which are permanent year-round
residential customers.  The increase in the level of wholesale sales reflected
the increased availability of Canal Unit 1 as explained above.  The changes in
wholesale unit sales have little, if any, impact on net income.  Retail unit
sales increased in 1995 due to a modest growth in customers (approximately
2,500 or 0.6%) mainly in the residential and commercial sectors and, to a



<PAGE 21>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

lesser extent, additional weather-related load attributable to greater air-
conditioning and heating use.  The decrease in total unit sales in 1995 was
mainly due to a lower level of wholesale sales reflecting the decreased
availability of Canal Unit 1.

    The cost of fuel increased in 1996 by $33.9 million due primarily to the
availability of Canal Unit 1, while the cost of purchased power decreased by
$9.8 million reflecting the availability of Canal Unit 1 and the reduced
requirement for other more costly sources of power.  In 1995, the 36% decline
in fuel costs was due to reduced consumption at Canal Unit 1.  The cost of
purchased power increased just 2% in 1995.

    Gas Operations

    In 1996, gas operating revenues increased approximately $34.9 million or
11.4% due to higher gas costs of $28.7 million reflecting both higher prices
from suppliers and increased unit sales to customers.  The increased firm
sales, including transportation, equated to $6.9 million due to higher degree
days during 1996.

    Gas operating revenues decreased in 1995 by $16.6 million or 5.1% due
mainly to an $18.3 million (10.3%) decline in the cost of gas sold that
reflects a 3.7% reduction in total sales.

    Quasi-firm sales are designed for customers who receive interruptible
service in peak months as negotiated in each contract and firm service in all
other months.  Fluctuations in quasi-firm sales had minimal impact on net
income in 1996 and 1995.  On January 17, 1997, the DPU approved a margin-
sharing proposal filed by Commonwealth Gas Company (COM/Gas) for sales and
transportation to quasi-firm customers.  This proposal allows COM/Gas to
retain 25% of the margins on these sales over a certain threshold amount as
set from year to year.  The remaining margins reduce the cost of gas sold to
firm customers.

      Unit sales and transportation volume (in billions of British thermal
units or BBTU) were as follows:

                                          %                  %
                                1996    Change      1995   Change     1994  

      Residential.........     22,759    6.7       21,336   (0.8)    21,515
      Commercial..........     11,558    7.9       10,710   (0.2)    10,728
      Industrial and other      6,676    4.1        6,412    1.8      6,296
        Total firm.......      40,993    6.6       38,458   (0.2)    38,539
      Off-system..........      2,420  (40.1)       4,043  (36.8)     6,401
      Quasi-firm..........      1,066  (44.1)       1,906  291.4        487
      Interruptible.......      1,883   55.0        1,215  (36.9)     1,927
        Total sales......      46,362    1.6       45,622   (3.7)    47,354
      Transportation......      4,852   20.6        4,024   82.2      2,208
        Total............      51,214    3.2       49,646    0.2     49,562

    The increase in unit sales to firm customers during 1996 (6.6%) reflects
significant improvements for all customer classes consistent with colder than

<PAGE 22>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

normal weather experienced during the year, as compared to milder weather in
1995 that was 1.4% above normal.  Heating degree days were nearly 3.8% higher
during 1996 as compared to 1995 and 2.3% above normal.  A growing customer
base, including customers formerly receiving quasi-firm sales service, also
contributed to the increase in firm unit sales in 1996.  During 1995 firm unit
sales were virtually unchanged compared to 1994.

    Other Operating Expenses

    In 1996, other operation increased approximately $9 million or 4.4%
reflecting the net impact of higher general liability insurance costs ($6.3
million), higher postretirement benefits costs ($4 million), and the net
impact of COM/Gas' labor dispute ($3.8 million).  These expenses were offset
somewhat by lower C&LM costs ($2.4 million), a $1.6 million decline in medical
costs, a decline in the provision for bad debts ($1.1 million) reflecting
improved collection experience, and the absence of legal fees ($.8 million)
associated with the cancellation of a power contract in 1995.  Other operation
in 1995 declined $7.1 million or 3.3% due primarily to a decline in liability
insurance ($5.4 million) caused by accrual adjustments that reflected better
than anticipated experience, lower C&LM costs ($3.3 million) and a decline in
the provision for bad debts ($1 million).  This was offset, in part, by higher
labor costs ($3.5 million) and postretirement benefits costs ($2.6 million).

    Maintenance increased in 1996 by $2.5 million or 6.5% primarily due to
storm damage costs related to Hurricane Edouard ($2.1 million).  These
increases were partially offset by reductions in maintenance costs, primarily
associated with Canal Unit 1 ($1.5 million).  During 1995, maintenance
increased $1.9 million (5.2%) reflecting scheduled maintenance and other
repair costs to several system generating units ($1.5 million).

    Depreciation expense increased $3.6 million and $4 million in 1996 and
1995, respectively, consistent with the System's additions to and upgrading of
its property, plant and equipment.

    Other Income

    The $3.4 million increase in 1996 was due mainly to the recording of a
regulatory asset by Canal for costs associated with postretirement benefits
that were recovered in 1996 wholesale rates ($1.8 million) and a gain
recognized on the sale of a parcel of non-utility land by Cambridge Electric
($.7 million).  The increase in 1995 was due to a decline in the expense
component of other income due primarily to the reversal of a reserve ($1.4
million) that had been established by Commonwealth Electric that related to
certain costs associated with its conservation program, offset by the
recognition of a reserve ($2.7 million, net of tax) related to a system
generating station that discontinued operations and, to a lesser extent, the
absence of the equity component of allowance for funds used during
construction (AFUDC) ($.3 million).






<PAGE 23>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

    Interest Charges

    Total interest charges declined $2.2 million, or 5%, in 1996 reflecting
maturing long-term debt and scheduled sinking fund payments.  Interest charges
for 1995 increased $1.1 million or 2.6% due primarily to a higher level of
interest on deferred gas costs ($2 million) and higher short-term interest
rates, offset, in part, by lower long-term interest costs ($.9 million) that
reflected maturing long-term debt and scheduled sinking fund payments.

Liquidity and Capital Resources

    Financial Condition

    The system's cash requirements are essentially met through the generation
of cash flows from the sale of electricity, natural gas (including liquefied
natural gas) and steam.  Daily cash requirements for current operations,
construction programs, debt service and other capital requirements are
maintained through internal generation and short-term borrowings made
available through the system's credit lines with banks.  Long-term debt
financings are used to refinance short-term debt when deemed appropriate by
management.

    The system's 1996 net cash flow from operating activities exceeded funds
used for investing activities for additions to property, plant and equipment
by $10.2 million or 19.2%.  These types of investing activities continue to be
funded entirely with internally-generated funds.  Cash required in 1996 for
financing activities was primarily for the payment of preferred and common
dividends ($34.2 million) and the funding of maturing long-term debt and
sinking fund requirements ($41.7 million).  Proceeds from short-term borrow-
ings ($62.9 million) helped to meet the year's cash requirements.  Other
information on the sources and uses of cash for the past three years is
included in the Consolidated Statements of Cash Flows in this report.

                             Capital Requirements
    -------------------------------------------------------------------
                           Bar graph illustration of
                    comparative two-year (1995-1996) actual
                     and five-year (1997-2001) forecast of
                     capital requirements based on values
                            listed in chart below.
    -------------------------------------------------------------------

                                                 Forecast             
                       1995   1996   1997    1998    1999  2000    2001
                                     (Dollars in Millions)
    Construction-
        Electric       $ 61   $ 39   $ 49    $ 60    $ 34  $ 31    $ 27
        Gas              16     11     18      18      19    19      19
        Other             3      3      1       1       1     1       1
    Maturing Debt        34     42     23      28      28     7       8
                       $114   $ 95   $ 91    $107    $ 82  $ 58    $ 55



<PAGE 24>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

    Capital Requirements and Resources

    The system's projected capital expenditures for the years 1997 through
2001 are $392.2 million, including $90.9 million for 1997 that consists of
$68.2 million in construction expenditures and $22.7 million for debt and
sinking fund payments.  These 1997 requirements will be met primarily through
internally-generated funds of $78.8 million with the balance of $12.1 million
supplemented by long and short-term debt financings.  The System could also
raise capital through the issuance of additional series of preferred shares or
additional Common Shares or through changing its Dividend Reinvestment and
Common Share Purchase Plan from a market purchase plan to direct issue of
shares.  The system'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.

    The system's capitalization structure, including short-term debt, is
presented below:

                                1995              1996      
                                (Dollars in Thousands)

      Long-term debt....   $410,411  47.1%   $369,565  40.3%
      Preferred shares..     13,840   1.6      13,020   1.4
      Common equity.....    390,785  44.9     415,694  45.4
      Short-term debt...     55,600   6.4     118,475  12.9
      Total capitalization $870,636 100.0%   $916,754 100.0%

                                Capitalization
      -------------------------------------------------------------------
                           Bar graph illustration of
                 comparative five-year (1997-2001) forecast of
                   capitalization components based on values
                            listed in chart below.
      -------------------------------------------------------------------

                                        Forecast                       
                   1997        1998         1999        2000         2001
                                    (Dollars in Millions)

    Common
      Equity    $438   46%  $458  48%   $477   51%   $495  54%    $515  58%
    Total
      Debt       493   53    480  51     444   48     407  45      368  41
    Preferred
      Stock       12    1     11   1      11    1      10   1        9   1
                $943  100%  $949 100%   $932  100%   $912 100%    $892 100%

    Forward-Looking Statements

    This report contains statements which, to the extent they are not recita-
tions of historical fact, constitute "forward-looking statements" and are
intended to be subject to the safe harbor protection provided by the Private
Securities Litigation Reform Act of 1995.  A number of important factors
<PAGE 25>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

affecting the System's business and financial results could cause actual
results to differ materially from those stated in the forward-looking state-
ments.  Those factors include developments in the legislative, regulatory and
competitive environment, certain environmental matters, demands for capital
expenditures and the availability of cash from various sources, and uncertain-
ty as to regulatory approval of the full recovery of regulatory assets and
other stranded costs.

Electric Industry Restructuring

    In August 1995, the DPU issued an order calling for the restructuring of
the electric utility industry in Massachusetts.  On May 1, 1996, the DPU
issued a second order containing proposed rules for implementing electric
industry restructuring that were the subject of public comment and hearings
during June and July 1996.  Subsequently, on December 30, 1996, the DPU issued
another order announcing its "Model Rules and Legislative Proposal" as a guide
in the creation of a competitive market for electric generation in
Massachusetts that would provide customers with the opportunity to achieve
lower electric bills beginning January 1, 1998.  The order also required
electric utilities to file by March 3, 1997, revenue-neutral, unbundled rates
and model bills showing a breakdown of the bill into generation, transmission,
distribution and access charge categories.

    In its "Model Rules," the DPU has proposed that the minimum structural
reorganization needed to create a competitive market is the functional
separation of generation, transmission and distribution within one integrated
company, and the establishment of a separate marketing affiliate if a company
retains generation assets.  The Massachusetts Legislature, which will render
the final passage of any restructuring law, is now considering the DPU's
proposed legislation.

    Other elements of the DPU's Model Rules provide that electric customers
will be able to buy their power on the open market; distribution services will
remain a monopoly service offered exclusively by the existing local
distribution companies in clearly defined service territories; and customers
will have three types of electric generation choices.  First, customers may
enter into unregulated agreements with a competitive supplier for the
provision of generation.  Second, customers may continue to buy power directly
from their electric distribution company at a price regulated by the DPU. 
Third, customers who have received generation from a competitive supplier but
who, for any reason, have stopped receiving such generation will be able to
receive default generation service, provided by distribution companies at spot
market price.

    Changes in the electric industry may reduce the opportunity that currently
exists for electric companies to recover their investment in generating plant
and other expenditures previously approved by the DPU and included in current
rates.  The potential losses, which may result from subjecting electric
company generation to the pressures of a competitive market, are typically
referred to as "stranded costs."  The single largest component of stranded
costs which are significant to the system relates to above market purchased
power contracts that Commonwealth Electric and Cambridge Electric have with
non-utility generators.  However, the DPU has concluded that it is in the
public interest to provide electric companies a reasonable opportunity to
<PAGE 26>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

collect net, non-mitigable stranded costs.  The DPU has proposed that stranded
costs associated with owned generation facilities, regulatory assets, and
minimum purchased power obligations be collected over the expected economic
life of the generating facility, the current amortization schedule of the
regulatory asset, or the contractual term of the purchased power obligation,
respectively.  The DPU's proposal requires that any stranded cost recovery for
an electric utility be subject to mitigation efforts to reduce embedded costs
over time.  The Model Rules specify that mitigation should include such
measures as sales of capacity and energy from owned generation, renegotiation
or buy-out of purchased power contracts, and sales and voluntary writedowns of
assets.  Further, the DPU will conduct stranded cost charge reconciliations at
years two, five and ten following the date of retail access.

    During the last several months, three Massachusetts electric utilities
have announced negotiated settlement agreements with the Massachusetts
Attorney General's Office (Attorney General) that include divestiture of
generating assets, provision for a ten percent reduction in customers' charges
and recovery of stranded costs through a non-bypassable access charge.  One
settlement agreement has already been approved by the DPU.  Implementation of
any restructuring settlement may be affected by actions of the Massachusetts
Legislature.

    The system is engaged in preliminary settlement discussions with the
Attorney General, and expects to reach a comprehensive settlement during the
first half of 1997.  In the unlikely event it is unable to complete a
settlement, the system would file a full restructuring plan with the DPU.

    As described in Note 2(b) to the Consolidated Financial Statements, the
system complies with the provisions of Statement of Financial Accounting
Standards (SFAS) No. 71, "Accounting for the Effects of Certain Types of
Regulation."  In the event the system determined that it no longer met the
criteria for following SFAS No. 71, the accounting impact would be an
extraordinary, non-cash charge to operations in an amount that could be
material.  Criteria that give rise to the discontinuance of SFAS No. 71
include: 1) increasing competition restricting the system'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.  The system periodically
reviews 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, the system
believes that its regulatory assets, including those related to generation,
are probable of future recovery.

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.

    The costs associated with the assessment and clean-up of these sites are
recoverable in rates through the cost of gas adjustment clause over a seven-
year amortization period without carrying costs pursuant to a 1990 DPU order. 
Commonwealth Gas has recorded an estimated $2.5 million liability that
<PAGE 27>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

reflects its best estimate (based on current information) of the costs to be
incurred in connection with assessment and remediation activities identified
to this point.  Commonwealth Gas has also recorded a regulatory asset in
anticipation of recovery of these costs.  Commonwealth Gas is unable to
predict the total cost to ultimately resolve these matters, due to significant
uncertainty as to the actual site conditions and the extent of any associated
remediation activities and the assignment of responsibility.  However, it is
expected that all such costs will continue to be recovered in rates as
described above.

    Commonwealth Gas and certain other system subsidiaries are also involved
in other known or potentially contaminated sites where the associated costs
may not be recoverable in rates and have recorded an estimated liability (and
a charge to operations) of $2 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.  The system is unable to estimate its ultimate
liability for future environmental remediation costs.  However, in view of the
system'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 the system's results of
operations or financial position.

    Effective January 1, 1997, the system will adopt the provisions of
Statement of Position (SOP) 96-1, "Environmental Remediation Liabilities." 
This Statement provides authoritative guidance for recognition, measurement,
display and disclosure of environmental remediation liabilities in financial
statements.  The system has recorded environmental remediation liabilities net
of amounts paid of $4.2 million at December 31, 1996.  Upon adoption of SOP
96-1, the system's estimated liability will not incrementally change and
further, management does not believe that SOP 96-1 will have a material
adverse effect on the system's results of operations or financial position.


Item 8. Financial Statements and Supplementary Data

    The Company's financial statements required by this item are filed
herewith on pages 28 through 49 of this report.


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

    None.









<PAGE 28>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

Item 8.  Financial Statements and Supplementary Data

                              MANAGEMENT'S REPORT

      The consolidated financial statements presented herein are
representations of the management of Commonwealth Energy System.  Management
recognizes its responsibility for the preparation and presentation of
financial statements 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
Committee, 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
consolidated financial statements.


                                                     James D. Rappoli,
                                                     Financial Vice President

February 19, 1997.


                   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 (a
Massachusetts trust) and subsidiary companies as of December 31, 1996 and
1995, 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, 1996.  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
Commonwealth Energy System and subsidiary companies as of December 31, 1996
and 1995, and the results of their operations and their cash flows for each of
the three years in the period ended December 31, 1996, in conformity with
generally accepted accounting principles.


                                                     ARTHUR ANDERSEN LLP

Boston, Massachusetts
February 19, 1997.
<PAGE 29>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                  INDEX TO FINANCIAL STATEMENTS AND SCHEDULES

                                   PART II.


FINANCIAL STATEMENTS


      Consolidated Statements of Income for the Years Ended December 31, 1996,
      1995 and 1994

      Consolidated Statements of Cash Flows for the Years Ended December 31,
      1996, 1995 and 1994

      Consolidated Balance Sheets at December 31, 1996 and 1995

      Consolidated Statements of Capitalization for the Years Ended December
      31, 1996, 1995 and 1994

      Consolidated Statements of Changes in Common Shareholders' Investment
      for the Years Ended December 31, 1996, 1995 and 1994

      Consolidated Statements of Changes in Redeemable Preferred Shares for
      the Years Ended December 31, 1996, 1995 and 1994

      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, 1996, 1995  
            and 1994

      II    Valuation and Qualifying Accounts for the Years Ended December 31,
            1996, 1995 and 1994

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 30>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                       CONSOLIDATED STATEMENTS OF INCOME

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 and 1994

               (Dollars in Thousands - Except Per Share Amounts)

                                             1996          1995       1994

Operating Revenues
  Electric                                 $  649,678    $604,980   $638,150
  Gas                                         341,867     306,953    323,568
  Steam and other                              19,360      17,355     15,867
                                            1,010,905     929,288    977,585

Operating Expenses
  Fuel used in electric production,
    principally oil                            91,690      57,820     90,414
  Electricity purchased for resale            265,019     274,795    269,418
  Cost of gas sold                            187,530     158,835    177,150
  Other operation                             215,319     206,280    213,370
  Maintenance                                  40,913      38,414     36,522
  Depreciation                                 51,782      48,170     44,188
  Taxes-
    Local property                             18,049      17,573     17,467
    Income                                     36,099      24,574     29,154
    Payroll and other                           7,839       8,284      8,087
                                              914,240     834,745    885,770
Operating Income                               96,665      94,543     91,815

Other Income                                    4,878       1,461        627

Income Before Interest Charges                101,543      96,004     92,442

Interest Charges
  Long-term debt                               35,586      38,581     39,442
  Other interest charges                        7,039       6,884      4,475
  Allowance for borrowed funds used during
    construction                                 (257)       (857)      (443)
                                               42,368      44,608     43,474

Net Income                                     59,175      51,396     48,968
  Dividends on preferred shares                 1,050       1,110      1,170
Earnings Applicable to Common Shares       $   58,125    $ 50,286   $ 47,798

Average Number of Common Shares
  Outstanding                              21,529,676  21,311,836 20,827,562
Earnings Per Common Share                       $2.70       $2.36      $2.29



The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE 31>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                     CONSOLIDATED STATEMENTS OF CASH FLOWS

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 and 1994

                            (Dollars in Thousands)

                                                   1996       1995      1994

Operating Activities
  Net income                                    $ 59,175   $ 51,396  $ 48,968
  Effects of noncash items-
    Depreciation and amortization                 63,331     60,555    53,727
    Deferred income taxes, net                     3,515      4,182    14,846
    Investment tax credits, net                   (1,285)    (1,401)   (1,470)
    Earnings from corporate joint ventures        (1,557)    (1,633)   (1,750)
  Dividends from corporate joint ventures          1,376      2,067     1,651
  Change in working capital, exclusive of cash-
    Accounts receivable and unbilled revenues     (9,446)   (13,626)   15,085
    Income taxes                                 (14,097)    14,353     8,016
    Local property and other taxes                  (555)      (950)      616
    Accounts payable and other                   (33,956)    25,199    28,976
  Power contract buy-out                             -      (25,500)      -  
  Fuel charge stabilization deferral, net          2,372     (3,447)  (15,964)
  Deferred postretirement benefits and
    pension costs                                 (2,157)    (4,479)   (8,536)
  FERC Order 636 transition costs, net               -       11,390    (2,585)
  All other operating items                       (3,391)     6,565   (15,017)
Net cash provided by operating activities         63,325    124,671   126,563

Investing Activities
  Additions to property, plant and
    equipment (exclusive of AFUDC)-
      Electric                                   (38,607)   (60,841)  (37,997)
      Gas                                        (11,591)   (16,143)  (17,993)
      Other                                       (2,730)    (3,659)   (1,843)
  Allowance for borrowed funds used during
    construction                                    (257)      (857)     (443)
Net cash used for investing activities           (53,185)   (81,500)  (58,276)

Financing Activities
  Sale of common shares                               32      9,534     9,434
  Payment of dividends                           (34,205)   (33,142)  (32,475)
  Proceeds from (payment of) short-term
    borrowings, net                               62,875     10,750   (27,125)
  Retirement of long-term debt and preferred
    shares through sinking funds                  (8,436)    (8,716)   (6,406)
  Long-term debt issues refunded                 (33,230)   (25,000)  (10,000)
Net cash used for financing activities           (12,964)   (46,574)  (66,572)

Net increase (decrease) in cash                   (2,824)    (3,403)    1,715
Cash at beginning of period                        4,319      7,722     6,007
Cash at end of period                           $  1,495   $  4,319  $  7,722

Supplemental Disclosures of Cash Flow Information
  Cash paid during the period for:
    Interest (net of capitalized amounts)       $ 41,294   $ 42,051  $ 41,022
    Income taxes                                $ 46,563   $ 12,918  $ 17,563




The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE 32>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                          CONSOLIDATED BALANCE SHEETS

                          DECEMBER 31, 1996 and 1995

                            (Dollars in Thousands)

                                                       1996        1995
Assets

Property, Plant and Equipment, at original cost
  Electric                                          $1,150,818   $1,118,630
  Gas                                                  357,403      346,990
  Other                                                 66,365       65,020
                                                     1,574,586    1,530,640
  Less-Accumulated depreciation and amortization       536,041      497,712
                                                     1,038,545    1,032,928
  Construction work in progress                          5,485       10,154
  Nuclear fuel in process                                1,597          122
                                                     1,045,627    1,043,204

Equity in Corporate Joint Ventures
  Nuclear electric power companies (2.5% to 4.5%)       10,046        9,814
  Other investments                                      3,349        3,400
                                                        13,395       13,214

Current Assets
  Cash                                                   1,495        4,319
  Accounts receivable, less reserves of $8,324,000
    in 1996 and $8,040,000 in 1995                     117,008      105,377
  Unbilled revenues                                     31,698       33,883
  Inventories, at average cost-
    Electric production fuel oil                         2,221        1,683
    Natural gas                                         23,084       17,339
    Materials and supplies                               6,220        6,516
  Prepaid taxes                                          9,079        9,044
  Other                                                  5,686        6,799
                                                       196,491      184,960

Deferred Charges
  Regulatory assets                                    154,291      130,672
  Other                                                 19,151       20,292
                                                       173,442      150,964


                                                    $1,428,955   $1,392,342









The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE 33>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                          CONSOLIDATED BALANCE SHEETS

                          DECEMBER 31, 1996 and 1995

                            (Dollars in Thousands)

                                                       1996        1995

Capitalization and Liabilities

Capitalization (See separate statement)
  Common share investment                           $  415,694   $  390,785
  Redeemable preferred shares, less current
    sinking fund requirements                           13,020       13,840
  Long-term debt, less current sinking fund
    requirements and maturing debt                     355,305      377,181
                                                       784,019      781,806

Capital Lease Obligations                               12,346       13,291


Current Liabilities
  Interim Financing-
    Notes payable to banks                             118,475       55,600
    Maturing long-term debt                             14,260       33,230
                                                       132,735       88,830

  Other Current Liabilities-
    Current sinking fund requirements                    8,473        9,103
    Accounts payable                                    90,269      100,715
    Accrued taxes-
      Local property and other                           9,060        9,580
      Income                                             7,910       22,007
    Accrued interest                                     6,267        8,389
    Dividends declared                                   8,289        8,073
    Other                                               39,279       55,379
                                                       169,547      213,246
                                                       302,282      302,076


Deferred Credits
  Accumulated deferred income taxes                    174,877      170,182
  Unamortized investment tax credits                    26,618       27,903
  Other                                                128,813       97,084
                                                       330,308      295,169


Commitments and Contingencies


                                                    $1,428,955   $1,392,342




The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE 34>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                   CONSOLIDATED STATEMENTS OF CAPITALIZATION

                          DECEMBER 31, 1996 and 1995

                            (Dollars in Thousands)

                                                         1996       1995
Common Share Investment
  Common shares, $2 par value-
    Authorized-50,000,000 shares
    Outstanding-21,529,676 shares in 1996
      and 21,528,268 shares in 1995                   $ 43,059    $ 43,056
    Amounts paid in excess of par value                111,685     111,749
    Retained earnings                                  260,950     235,980
      Total common share investment                    415,694     390,785

Redeemable Preferred Shares,
  Cumulative, $100 Par Value
    Series A, 4.80%                                      2,640       2,760
    Series B, 8.10%                                      4,000       4,160
    Series C, 7.75%                                      7,200       7,740
    Less-Current sinking fund requirements                (820)       (820)
      Total redeemable preferred shares                 13,020      13,840

Long-term Debt
  System
    Senior Notes due-
      1997, 10.48%                                      10,000      10,000
      1998, 10.45%                                      10,000      10,000
      1999, 10.58%                                      10,000      10,000
      Less-Maturing long-term debt                     (10,000)        -  
        Total System long-term debt                     20,000      30,000

  Subsidiary companies
    Mortgage Bonds, collateralized by property of
      operating subsidiaries, due-
        1996, 7%                                           -         3,800
        1996, 8.99%                                        -        10,000
        2001, 8.99%                                     18,100      21,750
        2006, 8.85%                                     34,650      35,000
        2020, 7 3/8%                                    10,000      10,000
        2020, 9 7/8%                                    40,000      40,000
        2020, 9.95%                                     25,000      25,000
        2033, 7.11%                                     35,000      35,000

    Notes due- 
        1996, 9.97%                                        -        20,000
        1997, 6 1/4%                                     4,260       4,320
        1998, variable rate (6.125% in 1996 and
                6.5625% in 1995)                         9,000       9,000
        1999, 8.04%                                     10,000      10,000
        2002, 7 3/4%                                     2,600       2,700
        2002, 9.30%                                     30,000      30,000
        2003, 7.43%                                     15,000      15,000
        2004, 9.50%                                     12,500      15,000
        2007, 8.70%                                      5,000       5,000
        2007, 9.55%                                     10,000      10,000
        2008, 7.70%                                     10,000      10,000
        2012, 9.37%                                     16,842      17,895
        2013, 7.98%                                     25,000      25,000
        2014, 9.53%                                     10,000      10,000
        2019, 9.60%                                     10,000      10,000
        2023, 8.47%                                     15,000      15,000
        Less-Maturing long-term debt                    (4,260)    (33,230)
             Current sinking fund requirements          (7,653)     (8,283)
             Unamortized discount, net                    (734)       (771)
        Total subsidiary companies' long-term debt     335,305     347,181

        Total long-term debt                           355,305     377,181

          Total capitalization                        $784,019    $781,806

The accompanying notes are an integral part of these consolidated financial
statements.

<PAGE 35>
              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

     CONSOLIDATED STATEMENTS OF CHANGES IN COMMON SHAREHOLDERS' INVESTMENT

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 and 1994

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

Balance December 31, 1993       20,590,154 $41,180 $ 94,657 $201,233 $337,070
Add (Deduct)-
 Net income                            -       -        -     48,968   48,968
 Sale of shares                    461,640     923    8,511      -      9,434
 Cash dividends declared-
  Common shares-$1.50 per share        -       -        -    (31,305) (31,305)
  Preferred shares                     -       -        -     (1,170)  (1,170)
Balance December 31, 1994       21,051,794  42,103  103,168  217,726  362,997
Add (Deduct)-
 Net income                            -       -        -     51,396   51,396
 Sale of shares                    476,474     953    8,581      -      9,534
 Cash dividends declared-
  Common shares-$1.50 per share        -       -        -    (32,032) (32,032)
  Preferred shares                     -       -        -     (1,110)  (1,110)
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



        CONSOLIDATED STATEMENTS OF CHANGES IN REDEEMABLE PREFERRED SHARES

              FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 and 1994

                                           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, 1993            30,000     44,800      88,200    163,000
    Less-Sinking fund redemptions     1,200      1,600       5,400      8,200
Balance December 31, 1994            28,800     43,200      82,800    154,800
    Less-Sinking fund redemptions     1,200      1,600       5,400      8,200
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


The accompanying notes are an integral part of these consolidated financial
statements.
<PAGE 36>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1)   General Information

      Commonwealth Energy System (the System) is an exempt public utility
holding company with investments in four operating public utility companies
located in central, eastern and southeastern Massachusetts. The System is the
parent company and, together with its subsidiaries, is collectively referred
to as "the system."  System electric operations are involved in the production
and sale of electricity to 363,000 customers in 41 communities including New
Bedford, Plymouth, Cambridge and the geographic area comprising Cape Cod. Gas
operations serve 234,000 customers in 49 communities including New Bedford,
Cambridge, Plymouth and Worcester. In addition to the utility companies, the
system includes a steam distribution company, five real estate trusts, a
company engaged in the operation of LNG facilities and two new subsidiaries
that are pursuing energy-related business opportunities.

      The system has 1,991 regular employees including 1,182 (59%) represented
by various collective bargaining units.  On September 8, 1996, a contract was
ratified, following a five and one-half month labor dispute, with a collective
bargaining unit that represents approximately 17% of regular employees.  The
new six-year agreement will remain in effect through March 31, 2002.  New
agreements were reached earlier this year with two other bargaining units
(representing approximately 23% of regular employees) that were scheduled to
expire on October 1, 1996 and November 1, 1997.  These new agreements will
remain in effect until 2002 and 2001, respectively.  Additional contracts with
two bargaining units representing approximately 5% of regular employees are
scheduled to expire in 1997.

(2)   Significant Accounting Policies

      (a)  Principles of Consolidation and Accounting

      The consolidated financial statements include the accounts of the System
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

      The system'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 Public
Utilities (DPU).

      Based on the current regulatory framework, the system 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 System have
established various regulatory assets in cases where the DPU and/or the FERC
have permitted or are expected to permit recovery of specific costs over time. 
Similarly, the regulatory liabilities established by the system are required
to be refunded to customers over time.  Effective January 1, 1996, the system
adopted SFAS No. 121, "Accounting for the Impairment of Long-Lived Assets and
for Long-Lived Assets to be Disposed Of."  SFAS No. 121 imposes stricter
criteria for regulatory assets by requiring that such assets be probable of
future recovery at each balance sheet date.  SFAS No. 121 did not have an
<PAGE 37>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

impact on the system's financial position or results of operations upon
adoption.  This result may change as modifications are made to the current
regulatory framework due to ongoing electric industry restructuring efforts in
Massachusetts.  If all or a separable portion of the system's operations
becomes no longer subject to the provisions of SFAS No. 71, a write-off of
related regulatory assets and liabilities would be required, unless some form
of transition cost recovery continues through rates established and collected
for the system's remaining regulated operations.  In addition, the system
would be required to determine any impairment to the carrying costs of
deregulated plant and inventory assets.  However, on December 30, 1996, the
DPU issued an order containing "model rules" for industry restructuring that
management believes would essentially allow full recovery of stranded costs. 
For additional information relating to industry restructuring, see the
"Electric Industry Restructuring" section under Management's Discussion and
Analysis of Financial Condition and Results of Operations.

      The principal regulatory assets included in deferred charges at December
31, 1996 and 1995 were as follows:
                                                         1996        1995
                                                      (Dollars in Thousands)

      Postretirement benefit costs including
         pensions                                      $ 25,051    $ 24,608
      Power contract buy-out                             20,794      23,838
      Fuel charge stabilization                          21,504      22,063
      Deferred income taxes                              13,597      14,106
      FERC Order 636 transition costs                     9,680      11,711
      Connecticut Yankee unrecovered plant and
         decommissioning costs                           35,879         -  
      Yankee Atomic unrecovered plant and
         decommissioning costs                            7,798      10,135
      Seabrook related costs                              6,262       9,511
      Other                                              13,726      14,700
                                                       $154,291    $130,672

      The regulatory liabilities, reflected in the accompanying Consolidated
Balance Sheets and related primarily to deferred income taxes, were $17.7
million and $14 million at December 31, 1996 and 1995, respectively.

      As of December 31, 1996, $120.5 million of the system's regulatory
assets, including the Connecticut Yankee costs associated with an existing
power contract (see Note 4(e)), and all of its regulatory liabilities are
reflected in rates charged to customers.  Regulatory assets are being
recovered over a weighted average period of approximately 11 years.  The fuel
charge stabilization deferral is expected to be recovered over a six-year
period beginning in April 1998, pursuant to a yet to be determined recovery
schedule and subject to final DPU approval.  Requests for recovery of the
remaining regulatory assets (primarily postretirement benefits costs) are in
process and DPU approval is expected during 1997.

      (c)  Equity Method of Accounting

      The system 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.  The
system 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 38>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      (d)  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.

      System 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.

      (e)  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: 

                                 1996     1995      1994

      Electric                   3.65%    3.52%     3.30%
      Gas                        2.94     2.90      2.98
      Steam                      3.89     3.91      3.94
      LNG                        3.59     3.20      3.12

      (f)  Allowance for Funds Used During Construction

      Under applicable rate-making practices, system 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 the accompanying
Consolidated Statements of Income.

      While AFUDC does not provide funds currently, these amounts are
recoverable in revenues over the service life of the constructed property. 
The amount of AFUDC recorded was at a weighted average rate of 6.2% in 1996,
7.1% in 1995 and 9.1% in 1994.

(3) Common Shares Outstanding

      On June 5, 1996, the System effected a two-for-one stock split of its
outstanding common shares as proposed by the System's Board of Trustees on
March 28, 1996 and subsequently approved by the System's shareholders on May
2, 1996.  The record date for the stock split was May 15, 1996.  The split
resulted in the issuance of an additional 10.8 million common shares and
accompanied an increase in the number of authorized common shares from 18
million to 50 million and included a change in the par value from four dollars
to two dollars per common share.  Prior year amounts for the average number of
common shares outstanding, earnings per common share, dividends declared per
common share and common share investment information in the accompanying
consolidated financial statements and in the table of selected financial data
have been restated to reflect the stock split.

(4) Commitments and Contingencies

      (a)  Construction

      The system is engaged in a continuous construction program presently
estimated at $302 million for the five-year period 1997 through 2001.  Of that
<PAGE 39>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

amount, $68.7 million is estimated for 1997.  The program is subject to
periodic review and revision.

      (b)  Seabrook Nuclear Power Plant

      The system's 3.52% interest in the Seabrook nuclear power plant is owned
by Canal Electric Company (Canal Electric), a wholesale electric generating
subsidiary, to provide for a portion of the capacity and energy needs of
affiliates Cambridge Electric Light Company (Cambridge Electric) and
Commonwealth Electric Company (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 DPU
approval.

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

                               1996      1995
                           (Dollars in Thousands)

     Utility plant-in-
       service               $232,183  $232,547  Plant capacity (MW)    1,150
     Nuclear fuel              21,613    20,138  Canal Electric's share:
     Accumulated depreciation                      Percent interest      3.52%
       and amortization       (57,359)  (50,230)   Entitlement (MW)      40.5
     Construction work in                        In-service date         1990
       progress                   844       946  Operating license
                             $197,281  $203,401    expiration date       2026

                                1996      1995      1994
                                 (Dollars in Thousands)
      Operating expenses:
        Fuel                  $ 1,727   $ 2,353   $ 1,939
        Other operation         4,091     4,292     4,340
        Maintenance               990     1,376     1,688
        Depreciation            6,544     6,542     6,531
        Amortization            1,319     1,319     1,320
                              $14,671   $15,882   $15,818

      Canal Electric and the other joint owners have established a
decommissioning fund to cover decommissioning costs.  The estimated cost to
decommission the plant is $449.9 million in current dollars.  Canal Electric's
share of this liability (approximately $15.8 million), less its share of the
market value of the assets held in a decommissioning trust (approximately $1.9
million), is approximately $13.9 million at December 31, 1996.

      (c) Price-Anderson Act

      Under the Price-Anderson Act (the Act), owners of nuclear power plants
have the benefit of approximately $8.9 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
operating license can be assessed up to $79.3 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.

      The system has an equity ownership interest in four nuclear generating
facilities as well as a 3.52% joint-ownership interest in Seabrook 1.  The
<PAGE 40>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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 combined American Nuclear Insurers/Mutual Atomic Energy Liability
Underwriters (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 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 decontamination 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 which currently provides $8.7 billion of retrospective insurance
premium benefits in accordance with the provisions of the Act.  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, the system's retrospective premium could be as high as $1.9
million yearly or a cumulative total of $15.1 million, exclusive of the effect
of inflation indexing (at five-year intervals) and a 5% surcharge ($4 million)
in the event that total public liability claims from a nuclear incident exceed
the funds available to pay such claims.

      (d)  Power Contracts

      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. 
Pertinent information with respect to life-of-the-unit contracts for power
from nuclear units that operated in 1996 in which the system has an equity
ownership (Yankee Nuclear Units) is as follows:

                                          Connecticut    Maine     Vermont
                                             Yankee*     Yankee     Yankee
                                               (Dollars in Thousands)

Equity Ownership (%)                           4.50       4.00       2.50
Plant Entitlement (%)                          4.50       3.59       2.25
Plant Capability (MW)                         560.0      870.0      496.0
System Entitlement (MW)                        25.2       31.2       11.2
Contract Expiration Date                       2007       2008       2012
1994 Actual Cost ($)                          8,902      6,250      3,660
1995 Actual Cost ($)                          9,498      7,376      4,003
1996 Actual Cost ($)                          9,259      6,511      4,208
Decommissioning cost estimate (100%) ($)    410,582    380,718    366,142
System's decommissioning cost ($)            18,476     13,668      8,238
Market value of assets (100%) ($)           209,448    163,536    159,613
System's market value of assets ($)           9,425      5,871      3,591

* Refer to section (e) for further information on Connecticut Yankee.

      Cambridge Electric pays its share of the decommissioning expense to
each of the operators of these nuclear facilities as a cost of electricity
purchased for resale.
<PAGE 41>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      The system also has long-term contracts to purchase capacity from other
generating facilities.  Information relative to these contracts is as follows:

                      Range of
                      Contract
                     Expiration  Entitlement     1996       1995       1994
                       Dates       %     MW      Cost       Cost       Cost  
                                                   (Dollars in Thousands)
Type of Unit
Natural gas          2008-2017      *     204.7$120,842   $121,636  $137,304
Nuclear                 2012       11   73.6     37,072     40,376    41,475
Waste-to-energy         2015      100   67.0     39,622     37,526    38,107
Hydro                2014-2023    100   23.7     12,537      9,933     7,521
  Total                                369.0   $210,073   $209,471  $224,407

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

      Costs pursuant to these 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 life-of-the-
unit contracts from the operating Yankee Nuclear Units and other long-term
purchased power contracts in effect for the five years subsequent to 1996 are
as follows:

                                          Long-Term
                          Equity Owned    Purchased
                          Nuclear Units     Power          Total
                                   (Dollars in Thousands)

          1997               $11,474       $216,032      $227,506
          1998                11,003        219,702       230,705
          1999                12,768        224,508       237,276
          2000                12,779        229,992       242,771
          2001                11,908        239,253       251,161

      (e)  Yankee Nuclear Power Plants

      On July 22, 1996, Connecticut Yankee Atomic Power Company (Connecticut
Yankee), which operates the Connecticut Yankee nuclear power plant (the
Connecticut plant), took the unit out of service in connection with certain
safety-related issues and refueling.  During the outage, Connecticut Yankee's
owners evaluated the economics of continuing to operate the plant over the
remaining ten years of its current license life, compared to the costs of
closing the plant and incurring replacement power for the same period.  As a
result of this evaluation, on December 4, 1996, Connecticut Yankee's Board of
Directors voted to permanently shut down the plant.

      Cambridge Electric has an equity ownership interest in Connecticut
Yankee of 4.5% which, at December 31, 1996, amounted to approximately $4.7
million.  Cambridge Electric, through its ownership interest, has a
corresponding capacity entitlement and power purchase obligation.

      The preliminary estimate of the sum of future payments for the closing,
decommissioning and recovery of the remaining investment in the plant is
approximately $797 million.  Cambridge Electric's share of these remaining
estimated costs is approximately $36 million.  Based upon regulatory
precedent, Connecticut Yankee believes that it would continue to collect from
its power purchasers (including Cambridge Electric) its decommissioning costs,
unrecovered plant investment and other costs associated with the permanent
closure of the plant over the remaining period of the plant's operating
license that expires in 2007.  Cambridge Electric does not believe the
<PAGE 42>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

ultimate outcome of the early closing of this plant will have a material
adverse effect on its operations and believes that recovery of these FERC-
approved costs will continue to be allowed in its rates at the retail level.

      This action follows the permanent shutdown of the Yankee Atomic plant in
Rowe, Massachusetts in 1992.  Due to changing conditions within the nuclear
industry, it is possible that the remaining two operating nuclear plants in
which the system has an equity ownership interest could be shut down sometime
in the future prior to the expiration of each unit's operating license.

      (f) Environmental Matters

      The system 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
installation of expensive air and water pollution control equipment.  These
regulations have had an impact on the system's operations in the past and will
continue to have an impact on future operations, capital costs and
construction schedules of major facilities.  For additional information, see
"Environmental Matters" in Management's Discussion and Analysis of Financial
Condition and Results of Operations.

(5)   Income Taxes

      The system files a consolidated federal income tax return.  For
financial reporting purposes, the System and its subsidiaries provide taxes on
a separate return basis.

      The following is a summary of the consolidated provisions for income
taxes for the years ended December 31, 1996, 1995 and 1994:

                                               1996        1995       1994
                                                (Dollars in Thousands)
      Federal
          Current                             $28,375     $15,954    $12,789
          Deferred                              2,784       8,231     12,617
          Investment tax credits, net          (1,285)     (1,401)    (1,470)
                                               29,874      22,784     23,936
      State
          Current                               5,542       4,176      3,171
          Deferred                                890       1,115      2,403
                                                6,432       5,291      5,574
                                               36,306      28,075     29,510
      Amortization of regulatory liability
          relating to deferred income taxes      (159)     (5,164)      (174)
                                              $36,147     $22,911    $29,336
      Federal and state income taxes
          charged to:
            Operating expense                 $36,099     $24,574    $29,154
            Other (income) expense                 48      (1,663)       182
                                              $36,147     $22,911    $29,336

      Deferred tax liabilities and assets are determined based on the
difference 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.

      In May 1995, Canal Electric refunded certain unprotected excess deferred
taxes to Commonwealth Electric and Cambridge Electric resulting in a reduction
to the 1995 tax provision.
<PAGE 43>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      Accumulated deferred income taxes consisted of the following in 1996 and
1995:
                                                  1996        1995
                                                (Dollars in Thousands)
      Liabilities
          Property-related                      $195,810    $190,763
          Power contract buy-out                  10,002      10,002
          Fuel charge stabilization                8,124       8,149
          Postretirement benefits plan             7,442       6,767
          Seabrook nonconstruction                 1,183       3,089
          All other                               20,018      20,006
                                                 242,579     238,776
      Assets
          Investment tax credits                  17,205      18,035
          Pension plan                             8,528       7,457
          Regulatory liability                     6,352       6,455
          All other                               22,239      21,570
                                                  54,324      53,517
      Accumulated deferred income taxes, net    $188,255    $185,259

      The net year-end deferred income tax liability above includes a current
deferred tax liability of $13,378,000 and $15,077,000 in 1996 and 1995,
respectively, which are included in accrued income taxes in the accompanying
Consolidated Balance Sheets.

      The total income tax provision set forth previously represents 38% in
1996, 31% in 1995 and 37% in 1994 of income before such taxes.  The following
table reconciles the statutory federal income tax rate to these percentages:

                                                  1996      1995      1994
                                                   (Dollars in Thousands)

      Federal statutory rate                          35%       35%       35%

      Federal income tax expense at statutory
        levels                                   $33,363   $26,007   $27,406
      Increase (Decrease) from statutory levels:
        State tax net of federal tax benefit       4,181     3,439     3,623
        Tax versus book depreciation               1,553     1,369     1,471
        Amortization of investment tax credits    (1,285)   (1,368)   (1,457)
        Reversals of capitalized expenses           (654)     (652)     (654)
        Dividend received deduction                 (381)     (389)     (428)
        Amortization of excess deferred reserves    (159)   (5,164)     (174)
        Other                                       (471)     (331)     (451)
                                                 $36,147   $22,911   $29,336

        Effective federal income tax rate             38%       31%       37%

(6)  Employee Benefit Plans

      (a) Pension

      The system 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.  The system makes monthly contributions to the plan consistent
with the funding requirements of the Employee Retirement Income Security Act
of 1974.
<PAGE 44>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      Components of pension expense and related assumptions to develop pension
expense were as follows:

                                            1996        1995        1994
                                               (Dollars in Thousands)

      Service cost                        $  7,663    $  6,386    $  7,316
      Interest cost                         24,462      23,949      21,452
      Return on plan assets-(gain)/loss    (45,961)    (62,933)      4,544
      Net amortization and deferral         24,520      42,928     (21,990)
        Total pension expense               10,684      10,330      11,322
      Less: Amounts capitalized
            and deferred                     2,203       1,842       2,823
        Net pension expense               $  8,481    $  8,488    $  8,499

      Discount rate                         7.25%       8.50%       7.25%
      Assumed rate of return                8.75        9.00        8.50
      Rate of increase in future
        compensation                        4.25        5.00        4.50

      Pension expense 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 pension contribution,
which is reflected in base rates, and pension expense.  The funded status of
the system's pension plan (using a measurement date of December 31) is as
follows:

                                                 1996          1995
                                               (Dollars in Thousands)

      Accumulated benefit obligation:
        Vested                                 $(254,888)    $(240,585)
        Nonvested                                (30,604)      (26,772)
                                               $(285,492)    $(267,357)

      Projected benefit obligation             $(340,850)    $(323,652)
      Plan assets at fair market value           343,884       308,969
        Projected benefit obligation less
          or (greater) than plan assets            3,034       (14,683)
      Unamortized transition obligation            8,036         9,643
      Unrecognized prior service cost             13,357        14,792
      Unrecognized gain                          (43,918)      (27,349)
        Accrued pension liability              $ (19,491)    $ (17,597)

      The following actuarial assumptions were used in determining the plan's
year-end funded status:
                                                 1996          1995

      Discount rate                              7.50%         7.25%
      Rate of increase in future compensation    4.25          4.25

      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.

      (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.
<PAGE 45>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      To fund its postretirement benefits, the system makes contributions to
various voluntary employees' beneficiary association trusts that were
established pursuant to section 501(c)(9) of the Internal Revenue Code (the
Code).  The system 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 system contributed approximately $13.7
million, $14 million and $14.5 million to these trusts during 1996, 1995 and
1994, respectively.

      The net periodic postretirement benefit cost for the years ended
December 31, 1996, 1995 and 1994 include the following components and related
assumptions:

                                                  1996      1995     1994
                                                  (Dollars in Thousands)

      Service cost                              $ 2,211   $ 1,774  $ 2,198
      Interest cost                               9,352     9,022    8,299
      Return on plan assets                      (5,176)   (5,796)    (186)
      Amortization of transition obligation
        over 20 years                             5,336     5,336    5,336
      Net amortization and deferral               2,038     3,692   (1,118)
         Total postretirement benefit cost       13,761    14,028   14,529
      Less: Amounts capitalized and deferred      1,614     5,898    8,811
         Net postretirement benefit cost        $12,147   $ 8,130  $ 5,718
 
      Discount rate                               7.25%     8.50%    7.25%
      Assumed rate of return                      8.75      9.00     8.50
      Rate of increase in future compensation     4.25      5.00     4.50

      The funded status of the system's postretirement benefit plan using a
measurement date of December 31, 1996 and 1995 is as follows:

                                                        1996        1995
                                                     (Dollars in Thousands)

      Accumulated postretirement benefit obligation:
        Retirees                                     $ (72,827)  $ (71,270)
        Fully eligible active plan participants        (11,468)    (12,860)
        Other active plan participants                 (41,352)    (41,814)
                                                      (125,647)   (125,944)
      Plan assets at fair market value                  45,967      33,324
      Accumulated postretirement benefit obligation
         greater than plan assets                      (79,680)    (92,620)
      Unamortized transition obligation                 85,368      90,703
      Unrecognized (gain) loss                          (5,688)      1,917
                                                     $     -     $     -  

      The following actuarial assumptions were used in determining the plan's
estimated accumulated postretirement benefit obligation (APBO) and funded
status for 1996 and 1995:

                                                        1996        1995

      Discount rate                                     7.50%       7.25%
      Rate of increase in future compensation           4.25        4.25
      Medicare Part B premiums                          9.50       12.20
      Medical care                                      7.00        8.00
      Dental care                                       5.00        5.00

      The above dental rate remains constant through the year 2007.  Rates for
Medicare Part B premiums and medical care decrease to 3.1% and 5%,
respectively, by 2007 and remain at that level thereafter.  A one percent
<PAGE 46>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

change in the medical trend rate would have a $1.7 million impact on the
system's annual expense and would change the APBO by approximately $16.1
million.

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

      Effective May 1, 1995 the DPU approved a settlement proposal sponsored
jointly by Commonwealth Electric and the Attorney General of Massachusetts
which allows Commonwealth Electric to fully recover costs relating to
postretirement benefits and to amortize its $8.6 million deferred balance over
a ten-year period.  In February 1996, FERC accepted for filing rate schedules
that provided for the recovery of Canal Electric's expense effective with its
March 1996 contract billings including the recovery of previously deferred
costs over a six-month period.  Commonwealth Gas has recently requested a
ruling from the DPU as it seeks to fully recover its costs.  In addition,
Commonwealth Gas has requested to amortize its deferred balance of $10 million
over a period not to exceed ten years.  While the system is unable to predict
the ultimate outcome of its request, it believes that the DPU will authorize
similar treatment as provided to Commonwealth Electric.

      (c) Savings Plan

      The system has an Employees Savings Plan that provides for system
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
system contribution was $4,053,000 in 1996, $4,393,000 in 1995 and $4,302,000
in 1994.

(7)  Interim Financing and Long-Term Debt

      (a)  Notes Payable to Banks

      System companies maintain both committed and uncommitted lines of credit
for the short-term financing of their construction programs and other cor-
porate purposes.  As of December 31, 1996, system companies had $135 million
of committed lines of credit that will expire at varying intervals in 1997. 
These lines are normally renewed upon expiration and require annual fees of up
to .1875% of the individual line.  At December 31, 1996, the uncommitted lines
of credit totaled $20 million.  Interest rates on the outstanding borrowings
generally are at an adjusted money market rate and averaged 5.6% and 6.1% in
1996 and 1995, respectively.  Notes payable to banks totaled $118,475,000 and
$55,600,000 at December 31, 1996 and 1995, respectively.

      (b)  Long-term Debt Maturities and Retirements

      Under terms of various indentures and loan agreements, the System 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 December 31,
1996 are as follows:

                   Sinking Funds    Maturing Debt Issues
      Year         Subsidiaries     System  Subsidiaries      Total
                                  (Dollars in Thousands)

      1997             $7,653       $10,000     $ 4,260      $21,913
      1998              7,653        10,000       9,000       26,653
      1999              7,653        10,000      10,000       27,653
      2000              6,153           -           -          6,153
      2001              7,581           -         3,500       11,081
<PAGE 47>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

(8)   Redeemable Preferred Shares

      Each series of the System's preferred shares was issued at par value,
$100 per share, and is subject to periodic, mandatory sinking fund payments.
The System 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 System 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           1997-2001           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 System.

      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 System may not redeem any shares unless all
shares of all preferred series are redeemed.

(9)   Disclosures About Fair Value of Financial Instruments

      The fair value of certain financial instruments included in the
accompanying Consolidated Balance Sheets as of December 31, 1996 and 1995 is
as follows:

                                  1996                   1995   
                                   (Dollars in Thousands)

                          Carrying     Fair       Carrying    Fair  
                            Value     Value         Value    Value  

      Long-term debt      $377,218   $417,411     $418,694  $475,661
      Preferred stock       13,840     14,601       14,660    16,847

      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.
<PAGE 48>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

(10)  Lease Obligations

      System companies lease property, transmission facilities and equipment
under agreements, some of which are capital leases. Several subsidiaries
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 system 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, 1996 and 1995:

                                                         1996       1995
                                                     (Dollars in Thousands)

      Transmission facilities                          $12,454    $13,128
      Office furniture, computer equipment and other     1,500      1,888
                                                        13,954     15,016
      Less: Accumulated amortization                        77         85
                                                       $13,877    $14,931

      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, 1996:

                                                      Capital   Operating
                                                      Leases      Leases 
                                                    (Dollars in Thousands)

      1997                                            $ 2,941    $13,791
      1998                                              2,319     12,182
      1999                                              1,810     11,369
      2000                                              1,732      5,032
      2001                                              1,669      3,058
      Beyond 2001                                      18,845     12,159
      Total future minimum lease payments              29,316    $57,591
      Less: Estimated interest element
            included therein                           15,439
      Estimated present value of future minimum
            lease payments                            $13,877

      Total rent expense for all operating leases, except those with terms of
a month or less, amounted to $12,922,000 in 1996, $13,867,000 in 1995 and
$13,052,000 in 1994.  There were no contingent rentals and no sublease rentals
for the years 1996, 1995 and 1994.

(11)  Dividend Restriction

      At December 31, 1996, approximately $112,717,000 of consolidated
retained earnings was restricted against the payment of cash dividends by
terms of indentures and note agreements securing long-term debt.

(12)  Segment Information

      System companies provide electric, gas and steam services to retail
customers in communities located in central, eastern and southeastern
Massachusetts and, in addition, sell electricity at wholesale to Massachusetts
customers.  Other operations of the system include the development and
operation of rental properties and other activities which do not presently
contribute significantly to either revenues or operating income.
<PAGE 49>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

      Operating income of the various industry segments includes income from
transactions with affiliates and is exclusive of interest expense, income
taxes and equity in earnings of unconsolidated corporate joint ventures.

      The amount of identifiable assets represented by the system's investment
in corporate joint ventures consists principally of a percentage ownership in
the assets of four regional electric generating plants and a 3.8% interest in
Hydro-Quebec Phase II.

                                             1996        1995        1994
                                               (Dollars in Thousands)
  Revenues from
    Unaffiliated Customers
      Electric                            $  649,678  $  604,980  $  638,150
      Gas                                    341,867     306,953     323,568
      Steam and other                         19,360      17,355      15,867
        Total Revenues                    $1,010,905  $  929,288  $  977,585

  Capital Expenditures (including AFUDC)
      Electric                            $   38,844  $   61,643  $   38,754
      Gas                                     11,611      16,198      18,020
      Other                                    2,730       3,659       1,843
                                          $   53,185  $   81,500  $   58,617

  Operating Income
    Before Income Taxes
      Electric                            $   92,374  $   78,817  $   85,823
      Gas                                     36,984      36,611      31,664
      Steam and other                          3,406       3,689       3,482
        Total Operating Income Before
          Income Taxes                    $  132,764  $  119,117  $  120,969

  Identifiable Assets
      Electric                            $1,011,306  $  982,384  $  931,168
      Gas                                    388,930     374,615     380,805
      Steam and other                         58,081      57,269      53,914
                                           1,458,317   1,414,268   1,365,887
    Intercompany eliminations                (42,757)    (35,140)    (34,503)
    Investment in corporate joint
      ventures                                13,395      13,214      13,648
        Total Identifiable Assets         $1,428,955  $1,392,342  $1,345,032

  Depreciation Expense
      Electric                            $   39,977  $   36,977  $   33,188
      Gas                                     10,061       9,656       9,559
      Steam and other                          1,744       1,537       1,441
        Total Depreciation                $   51,782  $   48,170  $   44,188





<PAGE 50>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                                   PART III.

Item 10. Trustees and Executive Officers of the Registrant

a. Trustees of the Registrant:

   Information required by this item is incorporated herein by reference to
   the Notice of 1997 Annual Meeting and Proxy Statement dated
   March 28, 1997, pages 3-4.

b. Executive Officers of the Registrant:
                                                                     Age at
                                                                    December
Name of Officer         Position and Business Experience            31, 1996

William G. Poist        President, Chief Executive Officer and          63
                        Trustee of the System and Chairman and
                        Chief Executive Officer of its principal
                        subsidiary companies since January 1,
                        1992; Vice President of the System and
                        COM/Energy Services Company* effective
                        September 1, 1991; President and Chief
                        Operating Officer of Commonwealth Gas
                        Company* from 1983 to 1991 and Hopkinton
                        LNG Corp.* from 1985 to 1991. 

James D. Rappoli        Financial Vice President and Treasurer of       45
                        the System and its subsidiary companies
                        effective March 1, 1993; Treasurer of System
                        subsidiary companies from 1990 to 1993;
                        Assistant Treasurer of System subsidiary
                        companies from 1989 to 1990.

Russell D. Wright       President and Chief Operating Officer of        50
                        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 System and Financial Vice
                        President of its subsidiary companies
                        (July 1987 to March 1993); Treasurer of
                        System subsidiary companies (December 1989
                        to December 1990); Assistant Vice President-
                        Finance of System subsidiary companies 1986.

    * Subsidiary of the System.
<PAGE 51>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

b. Executive officers of the Registrant (Continued):
                                                                     Age at
                                                                    December
Name of Officer         Position and Business Experience            31, 1996

Michael P. Sullivan     Vice President, Secretary, and                  48
                        General Counsel of the System
                        and subsidiary companies (effective
                        June 1993); Vice President, Secretary,
                        and General Attorney of the System and
                        subsidiary companies since 1981.

Robert A. Paul          Senior Vice President of Corporate              52
                        Planning of COM/Energy Services
                        Company* (effective February 10, 1997);
                        Vice President of Commonwealth
                        Edison Co. (a subsidiary of Unicom Corp.)
                        from 1994 to 1997; senior manager at
                        Digital Equipment Corp. from 1977 to 1994.

John R. Williams        Vice President of Corporate Services of         53
                        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 System.

   The term of office for System officers expires May 1, 1997, 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 System.  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.

Item 11.  Executive Compensation

   Information required by this item is incorporated herein by reference to
the Notice of 1997 Annual Meeting and Proxy Statement dated March 28, 1997,
pages 5-9.

Item 12.  Security Ownership of Certain Beneficial Owners and Management

   Information required by this item is incorporated herein by reference to
the Notice of 1997 Annual Meeting of Shareholders dated March 28, 1997,
pages 2-4.
<PAGE 52>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

Item 13.  Certain Relationships and Related Transactions

   Information required by this item is incorporated herein by reference to
the Notice of 1997 Annual Meeting and Proxy Statement dated March 28, 1997,
pages 2-4.

                                   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 (page 29).

(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 71).

    Schedule I - Investments in, Equity in Earnings of, and Dividends
    Received from Related Parties - Years Ended December 31, 1996, 1995 and
    1994 (pages 72-74).

    Schedule II - Valuation and Qualifying Accounts - Years Ended December
    31, 1996, 1995 and 1994 (page 75).

    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, 1997.




<PAGE 53>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

(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 4, 1995 (Exhibit 1 to the
          CES Form 10-Q (September 1995), 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 54>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

  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).
<PAGE 55>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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
         (September 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 System'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).
<PAGE 56>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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 System'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
         August 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 Power Exchange Agreement by and between BECO and CEL dated
         December 1, 1984 (Exhibit 5 to the CEL 1984 Form 10-K, File No. 2-
         7909).

10.1.7.5 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).
<PAGE 57>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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).

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
          (Exhibit 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    Agreement to Share Certain Costs Associated with the Tewksbury-
          Seabrook Transmission Line dated May 8, 1986 (Exhibit 2 to the CEC
          1986 Form 10-K, File No. 2-30057).

10.1.10   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).

10.1.11   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).

10.1.12   Termination Supplement between CEC, CE and CEL for Seabrook Unit 2,
          dated December 8, 1986 (Exhibit 3 to the CEC 1986 Form 10-K, File
          No. 2-30057).
<PAGE 58>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.13   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).

10.1.14   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).

10.1.14.1 Amendments No. 2 and 3 to 10.1.17 as amended August 16, 1976 and
          December 31, 1978 (Exhibit 5(a) 14 to the System's Form S-16 (June
          1979), File No. 2-64731).

10.1.15   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).

10.1.15.1 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).

10.1.15.2 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).

10.1.16   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 System's 1985 Form 10-K,
          File No. 1-7316).

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

10.1.17.1 Supplement to 10.1.20 consisting of three Capacity Acquisition
          Commitments each dated May 7, 1987, concerning Phases I and II of
          the Hydro-Quebec Project and electricity acquired from Connecticut
          Light and Power Company (CL&P) (Exhibit 1 to the CEC Form 10-Q
          (September 1987), File No. 2-30057).

10.1.17.2 Supplements to 10.1.20 consisting of two Capacity Acquisition
          Commitments each dated October 31, 1988, concerning electricity
          acquired from Western Massachusetts Electric Company and/or CL&P
          for periods ranging from November 1, 1988 to October 31, 1994
          (Exhibit 2 to the CEC Form 10-Q (September 1989), File No. 2-
          30057).
<PAGE 59>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.17.3 Amendment to 10.1.20 as amended and restated June 1, 1993, 
          henceforth 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).

10.1.17.4 Capacity Disposition Commitment dated June 25, 1993 by and between
          Canal Electric Company (Unit 2) and Commonwealth Electric Company
          for the sale of a portion of Commonwealth Electric's entitlement in
          Unit 2 to Green Mountain Power Corporation (Exhibit 2 to Canal
          Electric's Form 10-Q (September 1993), File No. 2-30057).

10.1.18   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).

10.1.18.1 Amendment No. 2 to 10.1.21 as amended November 1, 1982 (Exhibit 5
          to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.18.2 Amendment No. 3 to 10.1.21 as amended January 1, 1986 (Exhibit 2 to
          the CE 1986 Form 10-K, File No. 2-7749).

10.1.19   Participation Agreement between MEPCO and CEL and/or NBGEL dated
          June 20, 1969 for construction of a 345 KV transmission line
          between Wiscasset, Maine and Mactaquac, New Brunswick, Canada and
          for the purchase of base and peaking capacity from the NBEPC
          (Exhibit 13 to the CES 1984 Form 10-K, File No. 1-7316).

10.1.19.1 Supplement Amending 10.1.22 as amended June 24, 1970 (Exhibit 8 to
          the CES Form S-7, Amendment No. 1, File No. 2-38372).

10.1.20   Power Purchase Agreement between Weweantic Hydro Associates and CE
          for the purchase of available hydro-electric energy produced by a
          facility located in Wareham, Massachusetts, dated December 13, 1982
          (Exhibit 1 to the CE 1983 Form 10-K, File No. 2-7749).

10.1.20.1 Power Purchase Agreement (Revised) between Weweantic Hydro Associ-
          ates and Commonwealth Electric Company for the purchase of
          available hydro-electric energy produced by a facility located in
          Wareham, MA, originally dated December 13, 1982, revised and dated
          March 12, 1993 (Exhibit 1 to the CE Form 10-Q (June 1993), File No.
          2-7749).

10.1.21   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 60>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.22   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).

10.1.22.1 Amendment to 10.1.25 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).

10.1.23   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
          Corporation (NEET), other New England utilities and CE (Exhibit 1
          to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.23.1 Amendment No. 3 to 10.1.26 (Exhibit 2 to the CE Form 10-Q (June
          1986), File No. 2-7749).

10.1.24   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,
          Amendment 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).

10.1.25   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
          (Exhibit 3 to the CE Form 10-Q (June 1984), File No. 2-7749).

10.1.25.1 Amendatory Agreement No. 3 to 10.1.28 as amended June 1, 1990,
          among certain NEPOOL utilities (Exhibit 1 to the CEC Form 10-Q
          (September 1990), File No. 2-30057).

10.1.26   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).

10.1.27   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).

10.1.28   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 61>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.29   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).

10.1.29.1 First, Second and Third Amendments to 10.1.32 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).

10.1.29.2 Fifth, Sixth and Seventh Amendments to 10.1.32 as amended October
          15, 1987, December 15, 1987 and March 1, 1988, respectively
          (Exhibit 1 to the CEC Form 10-Q (June 1988), File No. 2-30057).

10.1.29.3 Fourth and Eighth Amendments to 10.1.32 as amended July 1, 1987 and
          August 1, 1988, respectively (Exhibit 3 to the CEC Form 10-Q
          (September 1988), File No. 2-30057).

10.1.29.4 Ninth and Tenth Amendments to 10.1.32 as amended November 1, 1988
          and January 15, 1989, respectively (Exhibit 2 to the CEC 1988 Form
          10-K, File No. 2-30057).

10.1.29.5 Eleventh Amendment to 10.1.32 as amended November 1, 1989 (Exhibit
          4 to the CEC 1989 Form 10-K, File No. 2-30057).

10.1.29.6 Twelfth Amendment to 10.1.32 as amended April 1, 1990 (Exhibit 1 to
          the CEC Form 10-Q (June 1990), File No. 2-30057).

10.1.30   Phase II Equity Funding Agreement for New England Hydro-
          Transmission 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).

10.1.31   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
          utilities (Exhibit 2 to the CEC Form 10-Q (September 1990), File
          No. 2-30057).

10.1.32   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).

10.1.33   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).

10.1.33.1 Amendment No. 1 to 10.1.36 dated May 1, 1986 (Exhibit 6 to the CEC
          Form 10-Q (March 1987), File No. 2-30057).
<PAGE 62>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.33.2 Amendment No. 2 to 10.1.36 as amended September 1, 1987 (Exhibit 3
          to the CEC Form 10-Q (September 1987), File No. 2-30057).

10.1.34   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).

10.1.34.1 Amendments Nos. 1 and 2 to 10.1.37 as amended May 1, 1986 and
          February 1, 1987, respectively (Exhibit 5 to the CEC Form 10-Q
          (March 1987), File No. 2-30057).

10.1.34.2 Amendments Nos. 3 and 4 to 10.1.37 as amended June 1, 1987 and
          September 1, 1987, respectively (Exhibit 5 to the CEC Form 10-Q
          (September 1987), File No. 2-30057).

10.1.35   Phase II Boston Edison AC Facilities Support Agreement, dated June
          1, 1985, between BECO and certain NEPOOL utilities (Exhibit 7 to
          the CEC Form 10-Q (September 1985), File No. 2-30057).

10.1.35.1 Amendments Nos. 1 and 2 to 10.1.38 as amended May 1, 1986 and
          February 1, 1987, respectively (Exhibit 2 to the CEC Form 10-Q
          (March 1987), File No. 2-30057).

10.1.35.2 Amendments Nos. 3 and 4 to 10.1.38 as amended June 1, 1987 and
          September 1, 1987, respectively (Exhibit 4 to the CEC Form 10-Q
          (September 1987), File No. 2-30057).

10.1.36   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
          (Exhibit 8 to the CEC Form 10-Q (September 1985), File No. 2-
          30057).

10.1.37   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).

10.1.37.1 Transmission Service Agreement between Northeast Utilities'
          companies (NU) - The Connecticut Light and Power Company (CL&P) and
          Western Massachusetts Electric Company (WMECO), and CE for NU
          companies to transmit power purchased from Swift River Company's
          Chicopee Units to CE, dated October 1, 1984 (Exhibit 14 to the CE
          1984 Form 10-K, File No. 2-7749).

10.1.37.2 Transformation Agreement between WMECO and CE whereby WMECO is to
          transform power to CE from the Chicopee Units, dated December 1,
          1984 (Exhibit 15 to the CE 1984 Form 10-K, File No. 2-7749).

10.1.38   System Power Sales Agreement by and between CL&P and WMECO, as
          buyers, and CE, as seller, dated January 13, 1984 (Exhibit 13 to
          the CE 1984 Form 10-K, File No. 2-7749).
<PAGE 63>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.39   System Power Sales Agreement by and between CL&P, WMECO, as
          sellers, and CEL, as buyer, of power in excess of firm power
          customer requirements from the electric systems of the NU
          Companies, dated June 1, 1984, as effective October 25, 1985
          (Exhibit 1 to CEL 1985 Form 10-K, File No. 2-7909).

10.1.39.1 System Power Sales Agreement by and between CL&P, WMECO, and PSNH,
          as sellers, and Commonwealth Electric Company, as buyer, of power
          for peaking capacity and related energy, dated January 13, 1995, as
          effective June 1, 1995 and extending to October 31, 2000 (Exhibit 2
          to the CE Form 10-Q (June 1995), File No. 2-7749).

10.1.40   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).

10.1.40.1 Power Sales Agreement to 10.1.44 for all capacity and related
          energy produced, dated October 31, 1985 (Exhibit 2 to the CE 1985
          Form 10-K, File No. 2-7749).

10.1.40.2 Amendment to 10.1.44 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).

10.1.40.3 Amendment to 10.1.44 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).

10.1.41   System Power Sales Agreement by and between CE (seller) and NEP
          (buyer), dated January 6, 1984 (Exhibit 1 to the CE Form 10-Q (June
          1985), File No. 2-7749).

10.1.42   Service Agreement by and between CE and NEP dated March 24, 1984,
          whereas CE agrees to purchase short-term power applicable to NEP'S
          FERC Electric Tariff Number 5 (Exhibit 1 to the CE Form 10-Q (June
          1987), File No. 2-7749).

10.1.43   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).

10.1.43.1 First Amendment to 10.1.47 as amended August 15, 1988 (Exhibit 1 to
          the CE Form 10-Q (September 1988), File No. 2-7749).

10.1.43.2 Second Amendment to 10.1.47 as amended January 1, 1989 (Exhibit 2
          to the CE 1988 Form 10-K, File No. 2-7749).
<PAGE 64>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.43.3 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).

10.1.43.4 Amendment to 10.1.47.3 as amended January 1, 1989 (Exhibit 3 to the
          CE 1988 Form 10-K, File No. 2-7749).

10.1.44   Exchange of Power Agreement between Montaup Electric Company and CE
          dated January 17, 1991 (Exhibit 2 to CE Form 10-Q (September 1991)
          File No. 2-7749).

10.1.44.1 First Amendment, dated November 24, 1992, to Exchange of Power
          Agreement between Montaup Electric Company and Commonwealth
          Electric Company dated January 17, 1991 (Exhibit 1 to CE Form 10-Q
          (March 1993) File No. 2-7749).

10.1.45   System Power Exchange Agreement by and between Commonwealth
          Electric Company and New England Power Company dated January 16,
          1992 (Exhibit 1 to CE Form 10-Q (March 1992), File No. 2-7749).

10.1.45.1 First Amendment, dated September 8, 1992, to 10.1.49 by and between
          Commonwealth Electric Company and New England Power Company dated
          January 16, 1992 (Exhibit 1 to CE Form 10-Q (September 1992), File
          No. 2-7749).

10.1.45.2 Second Amendment, dated March 2, 1993, to 10.1.49 by and between CE
          and New England Power Company (NEP) dated January 16, 1992 (Exhibit
          2 to CE Form 10-Q (March 1993) File No.  2-7749).

10.1.46   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).

10.1.46.1 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).

10.1.47   Power Exchange Contract, dated March 24, 1993, between NEP and
          Canal Electric Company (Canal) for an exchange of unit capacity in
          which NEP will purchase 20 MW of Canal Unit 2 capacity in exchange
          for Canal's purchase of 20 MW of NEP's Bear Swamp Units 1 and 2 (10
          MW per unit) commencing May 31, 1993 through April 28, 1997 and NEP
          will purchase 50 MW of Canal's Unit 2 capacity in exchange for
          Canal's purchase of 50 MW of NEP's Bear Swamp Units 1 and 2 (25 MW
          per unit) commencing November 1, 1993 through April 28, 1997
          (Exhibit 1 to Canal's Form 10-Q (March 1993) File No. 2-30057).
<PAGE 65>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.1.48   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).

10.1.49   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).

10.1.49.1 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
          Commonwealth Electric's Form 10-Q (September 1993), File No 2-
          7749).

10.1.49.2 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).

10.1.49.3 First Amendment, dated November 7, 1994, to 10.1.53 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).

10.1.49.4 First Amendment, dated November 7, 1994, to 10.1.53.2 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    Service Agreement Applicable to Rate Schedule F-1 between AGT and
          CG for Firm natural gas services, dated January 28, 1981 (Exhibit 1
          to the CG Form 10-Q (March 1987), File No. 2-1647).

10.2.2    Gas Service Contract between HOPCO and NBGEL for the performance of
          liquefaction, storage and vaporization service and the operation
          and maintenance of an LNG facility located at Acushnet, MA dated
          September 1, 1971 (Exhibit 8 to the CG 1984 Form 10-K, File No. 2-
          1647).

10.2.2.1  Gas Service Contract between HOPCO and CG for the performance of
          liquefaction, storage and vaporization services and the operation
          of LNG facilities located in Hopkinton, MA dated September 1, 1971
          (Exhibit 9 to the CG 1984 Form 10-K, File No. 2-1647).
<PAGE 66>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.2.2.2  Amendments to 10.2.2 and 10.2.2.1 as amended December 1, 1976
          (Exhibits 2 and 3 to the CG 1986 Form 10-K, File No. 2-1647).

10.2.2.3  Supplement 1 to Gas Service Contract between HOPCO and NBGEL dated
          September 1, 1973 and September 14, 1977 (Exhibit 5(c)5 to the CES
          Form S-16 (June 1979), File No. 2-64731).

10.2.2.4  Supplement 1 to 10.2.2.1 dated September 14, 1977 (Exhibit 5(c)6 to
          the CG Form S-16 (June 1979), File No. 2-64731).

10.2.2.5  Supplement 2 to 10.2.2.1 dated September 30, 1982 (Refiled as
          Exhibit 2 to the CG 1992 Form 10-K, File No. 2-1647).

10.2.2.6  1986 Consolidating Supplement to CG Service Contract and NBGEL
          Service Contract by and between CG and HOPCO dated December 31,
          1986 amending and consolidating the CG Service Contract and the
          NBGEL Service Contract both as amended December 1, 1976 and
          supplemented September 14, 1977 (Exhibit 2 to CG Form 10-Q (March
          1988), File No. 2-1647).

10.2.3    Operating Agreement between Air Products and Chemicals, Inc., (APC)
          and HOPCO, dated as of September 1, 1971, as supplemented by
          Supplements No. 1, No. 2 and No. 3 dated as of July 1, 1974,
          August 1, 1975 and January 1, 1985, respectively, with respect to
          the operation and maintenance by APC of HOPCO's liquefied natural
          gas facilities located at Hopkinton, MA (Exhibit 11 to the CES 1984
          Form 10-K, File No. 1-7316).

10.2.3.1  Engineering and Prime Contracting Agreement between APC and HOPCO
          for performance of engineering services and capital project
          construction at LNG facility in Hopkinton, MA (Exhibit 12 to the
          CES 1984 Form 10-K, File No. 1-7316).

10.2.4    Firm Storage Service Transportation Contract by and between TGP and
          CG providing for firm transportation of natural gas from CGT, dated
          December 15, 1985 (Exhibit 1 to the CG 1985 Form 10-K, File No. 2-
          1647).

10.2.5    Gas Sales Agreement by and between Enron Gas Marketing, Inc. and CG
          relating to the sale and purchase of natural gas on an
          interruptible basis, dated June 17, 1986 (Exhibit 3 to the CG Form
          10-Q (June 1986), File No. 2-1647).

10.2.6    Service Agreement dated December 14, 1985 and an amendment thereto
          dated May 15, 1986 by and between Texas Eastern Transmission
          Corporation (TET) and CG to receive, transport and deliver to
          points of delivery natural gas for the account of CG, dated
          December 14, 1985 (Exhibit 5 to the CG Form 10-Q (June 1986), File
          No. 2-1647).

10.2.7    Gas Transportation Agreement by and between TET and CG to receive,
          transport and deliver on an interruptible basis, certain quantities
          of natural gas for the account of CG, dated January 31, 1986
          (Exhibit 6 to the CG Form 10-Q (June 1986), File No. 2-1647).
<PAGE 67>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.2.8    Service Agreement dated May 19, 1988, by and between TET and CG,
          whereby TET agrees to receive, transport and deliver natural gas to
          CG (Exhibit 1 to the CG Form 10-Q (September 1988), File No. 2-
          1647).

10.2.9    Gas Transportation Agreement by and between AGT and CG to receive,
          transport and deliver certain quantities of natural gas on a firm
          basis for the account of CG dated December 1, 1988 (Exhibit 2 to
          the CG 1988 Form 10-K, File No. 2-1647).

10.2.10   Gas Sales Agreement between Tejas Power Corporation (seller) and CG
          (purchaser) for the purchase of spot market gas, dated February 21,
          1989 with a contract term of at least one year (Exhibit 2 to the CG
          Form 10-Q (March 1989), File No. 2-1647).

10.2.11   Gas Sales Agreement between Vitol (seller) and CG (purchaser) for
          the purchase of spot market gas, dated April 5, 1988, with a
          contract term of at least one year (Exhibit 1 to the CG Form 10-Q
          (June 1989), File No. 2-1647).

10.2.12   Gas Sales Agreement between Fina Oil and Chemical Company (seller)
          and CG (purchaser) for the purchase of spot market gas, dated July
          10, 1989, with a contract term of at least one year (Exhibit 3 to
          the CG Form 10-Q (September 1989), File No. 2-1647).

10.2.13   Gas Sales Agreement between Panenergy (seller) and CG (purchaser)
          for the purchase of spot market gas, dated August 14, 1989, with a
          contract term of at least one year (Exhibit 4 to the CG Form 10-Q
          (September 1989), File No. 2-1647).

10.2.14   Gas Storage Agreement between Steuben Gas Storage Company (Steuben)
          and CG (customer) for the storage and delivery of customer's
          natural gas to and from underground gas storage facilities, dated
          May 23, 1989, with a contract term of at least one year (Exhibit 4
          to the CG Form 10-Q (June 1989), File No. 2-1647).

10.2.14.1 Amendment, dated August 28, 1989, to 10.2.14 dated May 23, 1989
          (Exhibit 5 to the CG Form 10-Q (September 1989), File No. 2-1647).

10.2.15   Gas Sales Agreement between LGN&E (seller) and CG (purchaser) for
          the purchase of firm gas, dated August 15, 1990, with a contract
          term of at least six years (Exhibit 1 to the CG Form 10-Q
          (September 1990), File No. 2-1647).

10.2.16   Transportation Agreement between AGT and CG to provide for firm
          transportation of natural gas on a daily basis, dated December 1,
          1988 (Exhibit 3 to the CG 1991 Form 10-K, File No. 2-1647).

10.2.17   Gas Sales Agreement between AFT and CG to reduce the volume of Rate
          Schedule F-1, dated October 15, 1990 (Exhibit 5 to the CG 1991 Form
          10-K, File No. 2-1647).
<PAGE 68>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

10.2.18   Transportation Agreement between AFT and CG for Rate Schedule AFT-
          1, dated November 1, Agreement No. 90103, 1990 (Exhibit 6 to the CG
          1991 Form 10-K, File No. 2-1647).

10.2.19   Transportation Agreement between TGP and CG dated September 1, 1991
          (Exhibit 9 to the CG 1991 Form 10-K, File No. 2-1647).

10.2.20   Transportation Agreement between CNG and CG to provide for
          transportation 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).

10.2.21   Service Line Agreement by and between Commonwealth Gas Company (CG)
          and Milford Power Limited Partnership dated March 12, 1992 for a
          term ending January 1, 2013.  (Exhibit 1 to the CG Form 10-Q (March
          1992), 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 the Employees Savings Plan of Commonwealth
          Energy System and Subsidiary Companies, as amended and restated as
          of January 1, 1993, effective October 1, 1994. (Exhibit 1 to CES
          Form S-8 (January 1995), 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
          Corporation, 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
          (Refiled as Exhibit 3 to the System'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 69>


              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

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
          (Exhibit 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    Fuel Supply, Facilities Lease and Operating Contract by and
          between, on the one side, ESCO (Massachusetts), Inc. and Energy
          Supply and Credit Corporation, and on the other side, CEC, dated as
          of February 1, 1985 (Exhibit 1 to the CEC 1984 Form 10-K, File No.
          2-30057.

10.3.4.1  Amendments Nos. 1 and 2 to 10.3.5 as amended July 1, 1986 and
          November 15, 1989, respectively (Exhibit 3 to the CEC 1989 Form 10-
          K, File No. 2-30057).

10.3.5    Assignment and Sublease Agreement and Canal's Consent of Assignment
          thereto whereby ESCO-Mass assigns its rights and obligations under
          Part II of the Resupply Agreement dated February 1, 1985 to ESCO
          Terminals Inc., dated June 4, 1985 (Exhibit 4 to CEC Form 10-Q
          (June 1985), File No. 2-30057).

10.3.6    Oil Supply Contract by and between CEC (buyer) and Coastal Oil New
          England, Inc. (seller) for a portion of CEC's requirements of No. 6
          residual fuel oil, dated July 1, 1991 (Exhibit 3 to CEC Form
          10-Q (June 1991), File No. 2-30057).

10.3.6.1  Assignment Agreement between CEC and ESCO (Massachusetts), Inc.
          (ESCO-Mass) and Energy Supply and Credit Corporation whereby CEC
          assigns to ESCO-Mass rights and obligations under 10.3.7 (above)
          dated July 1, 1991 (Exhibit 4 to CEC Form 10-Q (June 1991), File
          No. 2-30057).

10.3.7    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). 
<PAGE 70>

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

Exhibit 21. Subsidiaries of the Registrant

            Filed herewith as Exhibit 1 is a list of subsidiaries of
            Commonwealth Energy System, all of which are wholly-owned, as of
            December 31, 1996.

Exhibit 22. Published Report Regarding Matters Submitted to Vote of Security
            Holders.

            Filed herewith as Exhibit 2 is the Notice of 1997 Annual Meeting
            and Proxy Statement dated March 28, 1997.

Exhibit 27. Financial Data Schedule

            Filed herewith as Exhibit 3 is the Financial Data Schedule for
            the twelve months ended December 31, 1996.

            Filed herewith as Exhibit 4 is the restated Financial Data Sched-
            ule for the twelve months ended December 31, 1995.

            Filed herewith as Exhibit 5 is the restated Financial Data Sched-
            ule for the twelve months ended December 31, 1994.

(b) Reports on Form 8-K

            No reports on Form 8-K were filed during the three months ended
            December 31, 1996.
<PAGE 71>


                   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 19, 1997. 
Our audits were made for the purpose of forming an opinion on those
consolidated 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 19, 1997.
<PAGE 72>
<TABLE>

                                                                                                            SCHEDULE I

                                      COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES
                      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 73>
<TABLE>


                                                                                                            SCHEDULE I

                                      COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES
                      INVESTMENTS IN, EQUITY IN EARNINGS OF, AND DIVIDENDS RECEIVED FROM RELATED PARTIES
                                             FOR THE YEAR ENDED DECEMBER 31, 1995
                                                    (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  $ 43,784     $ 5,438      $ 5,043     $-      346,600  $ 44,179    $ 2,425
   COM/Energy Steam Company             25,500     4,110       2,093        2,664      -       25,500     3,539        500
   Canal Electric Company            1,523,200    98,048      14,132       13,709      -    1,523,200    98,471        555
   Commonwealth Gas Company          2,857,000   106,001      16,229       12,571      -    2,857,000   109,659      1,425
   Darvel Realty Trust                      26       870         185          -        -           26     1,055        -
   COM/Energy Freetown Realty                1     5,833        (356)         -        -            1     5,477      1,085
   COM/Energy Research Park Realty           1       886         239          386      -            1       739        -
   COM/Energy Cambridge Realty               1        57          (9)         -        -            1        48        -
   COM/Energy Acushnet Realty                1       524          67           16      -            1       575        -
   COM/Energy Services Company           3,250       337          49           49      -        3,250       337        -
   Commonwealth Electric Company     2,043,972   163,561      15,169        9,811      -    2,043,972   168,919        -
   Hopkinton LNG Corp.                   5,000     3,893         548          548      -        5,000     3,893        620
                                                $427,904     $53,784      $44,797     $-               $436,891     $6,610

OTHER INVESTMENTS:
 (Accounted for by the equity method)
   Nuclear Electric Power Companies     52,454  $  9,818     $ 1,093      $ 1,097     $-       52,454  $  9,814
   Hydro-Quebec Phase II               137,442     3,802         540          876      94     137,391     3,372
   Other Investments                       -          28         -            -        -          -          28
                                                $ 13,648     $ 1,633      $ 1,973     $94              $ 13,214
<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 1995, New England Hydro-Transmission Corporation repurchased 6.52% of their outstanding shares at $1,834.62
            per share.  Canal Electric Company received $94,017 for the repurchase of 51.246 shares, and has included this
            amount with dividends.
</TABLE>
<PAGE 74>
<TABLE>

                                                                                                            SCHEDULE I

                                      COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES
                      INVESTMENTS IN, EQUITY IN EARNINGS OF, AND DIVIDENDS RECEIVED FROM RELATED PARTIES
                                             FOR THE YEAR ENDED DECEMBER 31, 1994
                                                    (Dollars in Thousands)
<CAPTION>
                                           Balance at                                             Balance at
                                       Beginning of Year       Additions      Deductions          End of Year    
                                       Number                Equity                          Number                 Notes
                                         of                    in    Other   Distribution      of                 Receivable
                                       Shares   Investment  Earnings  (B)    of Earnings     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  $ 43,674    $ 6,242  $   -    $ 6,132        346,600  $ 43,784     $   410
   COM/Energy Steam Company             25,500     3,321      1,976      -      1,187         25,500     4,110         105
   Canal Electric Company            1,523,200    94,552     14,158      -     10,662      1,523,200    98,048       9,350
   Commonwealth Gas Company          2,857,000   107,004     13,568      -     14,571      2,857,000   106,001       2,935
   Darvel Realty Trust                      26       759        111      -        -               26       870         -  
   COM/Energy Freetown Realty                1   (18,832)      (335)  25,000      -                1     5,833         360
   COM/Energy Research Park Realty           1     1,045        296      -        455              1       886         -  
   COM/Energy Cambridge Realty               1        74        (17)     -        -                1        57         -  
   COM/Energy Acushnet Realty                1       558         66      -        100              1       524         -  
   COM/Energy Services Company           3,250       337         49      -         49          3,250       337         -  
   Commonwealth Electric Company     2,043,972   163,329     16,073      -     15,841      2,043,972   163,561         200
   Hopkinton LNG Corp.                   5,000     4,019        548      -        674          5,000     3,893         -  
                                                $399,840    $52,735  $25,000  $49,671                 $427,904     $13,360

OTHER INVESTMENTS:
 (Accounted for by the equity method)
   Nuclear Electric Power Companies     52,454  $  9,660    $ 1,242  $   -    $ 1,084         52,454  $  9,818
   Hydro-Quebec Phase II               137,442     3,861        508      -        567        137,442     3,802
   Other Investments                       -          28        -        -        -              -          28
                                                $ 13,549    $ 1,750  $   -    $ 1,651                 $ 13,648
<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)  Additional investment.
</TABLE>
<PAGE 75>


                                                               SCHEDULE II

              COMMONWEALTH ENERGY SYSTEM AND SUBSIDIARY COMPANIES

                       VALUATION AND QUALIFYING ACCOUNTS

             FOR THE YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994

                            (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, 1996   

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


                                     Year Ended December 31, 1995   

Allowance for
  Doubtful Accounts  $7,956     $8,089        $2,180       $10,185    $8,040


                                     Year Ended December 31, 1994   

Allowance for
  Doubtful Accounts  $7,761     $9,396        $2,138       $11,339    $7,956

<PAGE 76>


                          COMMONWEALTH ENERGY SYSTEM

                     FORM 10-K          DECEMBER 31, 1996

                                  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:    WILLIAM G. POIST               
                                         William G. Poist, 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:

WILLIAM G. POIST                                   March 27, 1997
William G. Poist,
President and Chief Executive Officer

Principal Financial and Accounting Officer:

JAMES D. RAPPOLI                                   March 27, 1997
James D. Rappoli,
Financial Vice President and Treasurer

A majority of the Board of Trustees:

SHELDON A. BUCKLER                                 March 27, 1997
Sheldon A. Buckler, Chairman of
    the Board

PETER H. CRESSY                                    March 27, 1997
Peter H. Cressy, Trustee

                                                   March   , 1997
Henry Dormitzer, Trustee

B. L. FRANCIS                                      March 27, 1997
Betty L. Francis, Trustee

FRANKLIN M. HUNDLEY                                March 27, 1997
Franklin M. Hundley, Trustee
<PAGE 77>


                          COMMONWEALTH ENERGY SYSTEM

                     FORM 10-K          DECEMBER 31, 1996

                                  SIGNATURES
                                  (Continued)


WILLIAM J. O'BRIEN                                 March 27, 1997
William J. O'Brien, Trustee

WILLIAM G. POIST                                   March 27, 1997
William G. Poist, Trustee

MICHAEL C. RUETTGERS                               March 27, 1997
Michael C. Ruettgers, Trustee

G. L. WILSON                                       March 27, 1997
Gerald L. Wilson, Trustee

<PAGE 78>



                   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, 1996 or
performed any audit procedures subsequent to the date of our report.



                                             ARTHUR ANDERSEN LLP

Boston, Massachusetts
March 28, 1997.


                                                   Exhibit 1

                   COMMONWEALTH ENERGY SYSTEM

                      LIST OF SUBSIDIARIES

                        DECEMBER 31, 1996



Cambridge Electric Light Company

Canal Electric Company

COM/Energy Acushnet Realty

COM/Energy Cambridge Realty

COM/Energy Enterprises, Inc.

COM/Energy Freetown Realty

COM/Energy Research Park Realty

COM/Energy Resources, Inc.

COM/Energy Services Company

COM/Energy Steam Company

Commonwealth Electric Company

Commonwealth Gas Company

Darvel Realty Trust

Hopkinton LNG Corp.


<PAGE 1>



                                               Commonwealth
                                               Energy System
                                               Notice of 1997
                                               Annual Meeting and
                                               Proxy Statement






































                                               Please sign and return your
                                               proxy promptly

<PAGE>
<PAGE 2>


                          COMMONWEALTH ENERGY SYSTEM

                           Cambridge, Massachusetts

                   Notice of Annual Meeting of Shareholders

                                  May 1, 1997

To the Shareholders of
COMMONWEALTH ENERGY SYSTEM:

      Notice is hereby given that the Annual Meeting of Shareholders of
Commonwealth Energy System will be held at the office of the System, One Main
Street, P.O. Box 9150, Cambridge, Massachusetts 02142-9150, on Thursday,
May 1, 1997, at 10:30 o'clock A.M., Eastern Daylight Time, for the following
purposes:

      1.    To elect three Trustees to hold office for a three-year term and
            until the election and qualification of their respective
            successors.

      2.    To transact such other business as may properly come before the
            meeting or any adjournment or adjournments thereof.

      Common Shareholders of record at the close of business on March 17, 1997
are entitled to notice of, and to vote at, the meeting.

                                         By order of the Trustees, 





                                         Michael P. Sullivan
                                         Vice President, Secretary 
                                         and General Counsel

March 28, 1997

                                   IMPORTANT

      We cordially invite you to attend the Annual Meeting of Shareholders,
but IF YOU DO NOT EXPECT TO BE PRESENT, PLEASE MAIL YOUR PROXY IN ORDER THAT
THE PRESENCE OF A QUORUM MAY BE ASSURED.  Because our shares are widely
distributed over a large number of holders, it is both necessary and desirable
that all Shareholders send in their proxies.  Failure to secure a quorum on
the date set would necessitate an adjournment, which would cause the System
considerable and needless expense.  To avoid this, please SIGN AND DATE the
accompanying proxy and mail it promptly in the enclosed envelope to
Commonwealth Energy System, P.O. Box 9150, Cambridge, Massachusetts 02142-
9150.

<PAGE>
<PAGE 3>


                                PROXY STATEMENT

      This statement is furnished in connection with the solicitation of
proxies by the Board of Trustees of Commonwealth Energy System (hereinafter
called the "System") to be used at the Annual Meeting of Shareholders of the
System to be held on Thursday, May 1, 1997, at the principal executive office
of the System, One Main Street, P.O. Box 9150, Cambridge, Massachusetts 02142-
9150, of which due notice has been given in accordance with the System's
Declaration of Trust dated December 31, 1926, as amended.  If the enclosed
form of proxy is executed and returned, it may nevertheless be revoked at any
time insofar as it has not been exercised.  A properly executed and returned
proxy will be voted in accordance with the directions contained thereon. 
Abstentions shall be voted neither "for" nor "against," but shall be counted
in the determination of a quorum.  Broker non-votes shall not be counted
either in calculating the number of shares present for the purpose of
determination of a quorum or for the purpose of determining whether a matter
has received the required number of votes.  The giving of a later-dated proxy
revokes all proxies previously given.  The approximate date on which this
Proxy Statement and the accompanying proxy card will first be mailed to
Shareholders is March 28, 1997.

                             FINANCIAL STATEMENTS

      The audited financial statements of Commonwealth Energy System and
Subsidiary Companies, which include comparative Balance Sheets as of
December 31, 1996 and 1995, Statements of Income and Statements of Cash Flows
for the three years ended December 31, 1996 and the Report of Independent
Public Accountants, are set forth in the Annual Report to Shareholders.

                               VOTING SECURITIES

      Each Common Share is entitled to one vote.  Only Shareholders of record
at the close of business on March 17, 1997 are qualified to vote at the
meeting.  There were outstanding as of the record date 21,561,282 Common
Shares.

      The Employees Savings Plan of Commonwealth Energy System and Subsidiary
Companies owned beneficially 3,178,045 Common Shares representing 14.7% of the
outstanding Common Shares as of March 17, 1997.  Members of the Plan are
entitled to give voting instructions with respect to their interests.

                 OWNERSHIP BY MANAGEMENT OF VOTING SECURITIES

      The following table shows the beneficial ownership, reported to the
System as of March 17, 1997, of Common Shares of the System owned by the Chief
Executive Officer and the four other most highly compensated Executive
Officers and, as a group, all Trustees and Executive Officers of the System.

                                              Total
                                              Common         Percent of
      Name                                    Shares (1)        Class  

      William G. Poist                         19,608           0.1%
      Russell D. Wright                        11,772           0.1%
      James D. Rappoli                          6,577           0.1%
      Leonard R. Devanna                        6,478           0.1%
      Michael P. Sullivan                       6,315           0.1%
      All Trustees and Executive Officers
        as a group (14 persons)                73,732           0.3%

<PAGE>
<PAGE 4>


(1) Beneficial ownership set forth in this Proxy Statement includes, where
    applicable, shares with respect to which voting or investment power is
    attributed to an Executive Officer or Trustee because of joint or
    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.


                   MATTERS TO BE BROUGHT BEFORE THE MEETING

                            1-ELECTION OF TRUSTEES

      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:

                                Kevin C. Bryant
                              Franklin M. Hundley
                               Gerald L. Wilson

      Of the three nominees, Mr. Hundley and Dr. Wilson are presently
Trustees.  Mr. Bryant was nominated by the Board on February 27, 1997 to fill
the position which will be occasioned by the retirement of Mr. Henry
Dormitzer, who is retiring from the Board of Trustees at the conclusion of his
term effective May 1, 1997.

      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
                                              Year First        Beneficially
                                               Became a         Owned as of
Name, Principal Occupation and Term of Office  Trustee    Age   March 17, 1997

    KEVIN C. BRYANT, Regional President, 
      BankBoston - Southeastern Region,
      Fall River, Massachusetts
      (NOMINEE)...........................        -        36         200

(C) SHELDON A. BUCKLER, Chairman of the Board
      of Commonwealth Energy System; Retired
      Vice Chairman of the Board and a 
      Director, Polaroid Corporation, 
      Cambridge, Massachusetts (Manufacturer 
      of photographic equipment and supplies); 
      Director, Aseco Corp.; Cerion Technologies, 
      Inc.; Nashua Corporation; Parlex Corp. 
      and Spectrum Information Technologies, Inc.
      TERM EXPIRES IN 1998 ...............      (1991)     65       4,432

<PAGE>
<PAGE 5>


                  INFORMATION CONCERNING NOMINEES AND TRUSTEES

                                                                Common Shares
                                              Year First        Beneficially
                                               Became a         Owned as of
Name, Principal Occupation and Term of Office  Trustee    Age   March 17, 1997

(A) PETER H. CRESSY, Chancellor, University of
(E)   Massachusetts Dartmouth, North Dartmouth,
      Massachusetts; Retired Rear Admiral,
      United States Navy
      TERM EXPIRES IN 1999 ...............      (1994)     55         228

(A) BETTY L. FRANCIS, Executive Vice President
(D)   and Chief Credit Officer, HomeSide
      Lending, Inc., Jacksonville, Florida
      TERM EXPIRES IN 1998 ...................  (1991)     50         200

(C) FRANKLIN M. HUNDLEY, Member and a Managing
(D)   Director, Rich, May, Bilodeau & Flaherty,
      P.C., Boston, Massachusetts (Attorneys);
      Director, The Berkshire Gas Company
      TERM EXPIRES IN 1997 (NOMINEE).........   (1985)     62       5,056

(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 ..................   (1994)     64       3,500

    WILLIAM G. POIST, President and Chief
      Executive Officer of Commonwealth Energy
      System and Chairman, Chief Executive Officer
      and a Director of its subsidiary companies
      TERM EXPIRES IN 1999 ...................  (1992)     63      19,608

(B) MICHAEL C. RUETTGERS, President, Chief
(E)   Executive Officer and a Director, EMC
      Corporation, Hopkinton, Massachusetts
      (Data storage technology); Director,
      CrossComm Corporation
      TERM EXPIRES IN 1998 ...................  (1995)     54       1,000

(B) GERALD L. WILSON, Vannevar Bush Professor of
(E)   Engineering, Massachusetts Institute of
      Technology, Cambridge, Massachusetts;
      Director, Analogic Corp. and Aseco Corp.
      TERM EXPIRES IN 1997 (NOMINEE).........   (1985)     57       1,304

      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 except for Dr. Wilson, who served as Vice President-Corporate Technology
and Manufacturing at Carrier Corporation during 1991-1992 while on a leave of
absence from Massachusetts Institute of Technology.

      During 1996, fees of $329,819 were incurred for legal services rendered
by the firm of Rich, May, Bilodeau & Flaherty, P.C., of which Mr. Hundley is a
Member and a Managing Director.  The firm has been employed in the last fiscal
year and the current fiscal year.

      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 6>


            COMPENSATION OF EXECUTIVE OFFICERS DURING THE YEAR 1996

      The following table shows compensation paid by the System and its
subsidiaries to the System's President and Chief Executive Officer and the
four other highest paid Executive Officers of the System whose total
compensation in 1996 exceeded $100,000.

<TABLE>
                          SUMMARY COMPENSATION TABLE
<CAPTION>
                                                     Long-Term Compensation   
                              Annual Compensation       Awards        Payouts

                                                                       Long-
                                                               Options  Term
                                               Other   Restr-  /Stock  Incen- All
                                               Annual  icted   Apprec-  tive  Other
                                               Compen- Stock   iation   Plan  Compen-
 Name and                     Salary           sation  Awards  Rights  (LTIP) sation
 Principal Position     Year    (1)    Bonus     (2)    (3)    (SARS) Payouts   (4)  
<S>                     <C>   <C>      <C>        <C><C>           <C>   <C>  <C>
William G. Poist        1996  $380,000 $142,142   -  $160,000      -     -    $15,204
 President and Chief    1995   350,000   95,645   -      -         -     -     14,004
 Executive Officer of   1994   320,000   98,721   -      -         -     -     12,804
 the System and Chair-
 man and Chief Exec-
 utive Officer of its
 subsidiary companies

Russell D. Wright       1996  $250,000 $ 97,427   -  $100,000     -      -    $10,020
 President and Chief    1995   231,667   66,060   -      -        -      -      9,269
 Operating Officer      1994   215,897   60,964   -      -        -      -      8,400
 of Cambridge
 Electric Light
 Company, Canal
 Electric Company,
 COM/Energy Steam
 Company and
 Commonwealth
 Electric Company

Kenneth M. Margossian(5)1996 $209,330 $ 81,182   -       -        -      -    $ 8,375
 President and          1995  194,583   56,040   -       -        -      -      7,786
 Chief Operating        1994  179,917   52,005   -       -        -      -      7,140
 Officer of Common-
 wealth Gas Company
 and Hopkinton LNG Corp.

James D. Rappoli        1996  $178,167 $60,740   -   $ 54,800     -      -    $ 7,126
  Financial Vice        1995   164,583  46,624   -       -        -      -      6,586
  President and         1994   151,686  43,196   -       -        -      -      5,880
  Treasurer of the
  System and its
  subsidiary companies
</TABLE>
<PAGE>
<PAGE 7>


<TABLE>
                          SUMMARY COMPENSATION TABLE (CONT'D)
<CAPTION>
                                                   Long-Term Compensation   
                            Annual Compensation       Awards        Payouts
                                                                    Long-
                                                            Options  Term
                                           Other    Restr-  /Stock  Incen-    All
                                           Annual   icted   Apprec-  tive    Other
                                           Compen-  Stock   iation   Plan    Compen-
 Name and                   Salary         sation   Awards  Rights   (LTIP)  sation
 Principal Position    Year   (1)    Bonus   (2)     (3)    (SARS)  Payouts    (4)  
<S>                    <C>  <C>      <C>        <C><C>         <C>     <C>  <C>
Leonard R. Devanna     1996 $168,000 $ 56,799   -  $ 55,200    -       -    $ 8,398
  President and        1995  154,250   45,511   -      -       -       -      7,714
  Chief Operating      1994  142,166   41,745   -      -       -       -      5,912
  Officer of
  COM/Energy Enterprises,
  Inc. and COM/Energy
  Resources, Inc.
- --------------------
<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 and the Executive Salary Continuation and Excess
      Benefit Plan of Commonwealth Energy System and Subsidiary Companies.

(2)   The dollar value of perquisites and other personal benefits, securities
      or property totalling 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
      1996, there were no such perquisites, earnings, reimbursements or
      discounts paid or made.

(3)   The amounts in this column represent the value of the restricted stock
      award, which was calculated by multiplying the average closing market
      price of the System's Common Shares during the first week of February,
      1997 (the time of 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 System. 
      Dividends are paid on the restricted Common Shares to the same extent as
      they are paid on the System's Common Shares.  The aggregate number of
      restricted Common Share holdings for the above-named Executive Officers
      as of March 1, 1997, is 15,563 Common Shares, having an aggregate value
      of $342,386.

(4)   The amounts in this column represent the aggregate contributions by the
      System and certain subsidiary companies during 1996 on behalf of the
      above-named individuals to the Employees Savings Plan and the Executive
      Salary Continuation and Excess Benefit Plan 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 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, $6,335, $4,860, $4,775, $2,376 and $2,968 

<PAGE>
<PAGE 8>


      represent the contributions made on behalf of Messrs. Poist, Wright,
      Margossian, Rappoli and Devanna, respectively, by the Employees Savings
      Plan.  Contributions made on behalf of Messrs. Poist, Wright,
      Margossian, Rappoli and Devanna by the Executive Salary Continuation and
      Excess Benefit Plan in 1996 equalled $8,869, $5,160, $3,600, $4,750 and
      $5,430, respectively.

(5)   Mr. Margossian resigned as President and Chief Operating Officer of
      Commonwealth Gas Company and Hopkinton LNG Corp. effective February 6,
      1997.
</TABLE>

<PAGE>
<PAGE 9>


                              PENSION PLAN TABLE

      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 of Commonwealth Energy
System and Subsidiary Companies, as of December 31, 1996.

<TABLE>
<CAPTION>
    Highest Annual
  Consecutive 3-Year
    Average Base
    Salary of Last               Annual Benefit for Years of Service (1)
      10 Years         10 Years   15 Years 20 Years   25 Years   30 Years   35 Years
    <S>                <C>        <C>      <C>        <C>        <C>        <C>
    $ 90,000 ....      $15,722    $23,583  $ 31,444   $ 39,306   $ 47,167   $ 51,278
     120,000 ....       21,222     31,833    42,444     53,056     63,667     69,278
     150,000 ....       26,722     40,083    53,444     66,806     80,167     87,278
     180,000 ....       32,222     48,333    64,445     80,555     96,667    105,278
     210,000 ....       37,722     56,583    75,445     94,305    113,167    123,278
     240,000 ....       43,222     64,833    86,445    108,055    129,667    141,278
     270,000 ....       48,722     73,083    97,445    121,805    146,167    159,278
     300,000 ....       54,222     81,333   108,445    135,555    162,667    177,278
     330,000 ....       59,722     89,583   119,445    149,305    179,167    195,278
     360,000 ....       65,222     97,833   130,445    163,055    195,667    213,278
     390,000 ....       70,722    106,083   141,445    176,805    212,167    231,278
     420,000 ....       76,222    114,333   152,445    190,555    228,667    249,278
     450,000 ....       81,722    122,583   163,445    204,305    245,167    267,278

- -------------
<FN>
(1)   Federal law places certain limits on the amount of benefits which can be
      paid from qualified pension plans.  Payments made by the System in
      excess of the applicable limitations are made pursuant to the terms of
      the Executive Salary Continuation and Excess Benefit Plan of
      Commonwealth Energy System and Subsidiary Companies.  For 1996, the
      maximum annual compensation limit under the Pension Plan for Employees
      of Commonwealth Energy System and Subsidiary Companies was $150,000, and
      the maximum annual benefit under that Plan was $120,000.
</TABLE>
      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 an 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.  Messrs. Poist, Wright, Margossian, Rappoli and Devanna have 32,
29, 27, 22 and 15 credited years of service respectively. For the purposes of
calculating the annual retirement benefits of Messrs. Poist, Wright,
Margossian, Rappoli and Devanna 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.

      Each Executive Officer of the System 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 

<PAGE>
<PAGE 10>


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
retirement 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 System after the Executive Officer's
completion of ten years of service with the System 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 System until the date of the Executive Officer's fifty-fifth birthday
and retired on that date.  Should the employment of the Executive Officer
terminate 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 System has entered into Severance Agreements with its Executive
Officers, including Messrs. Poist, Wright, Rappoli and Devanna.  The Severance
Agreements provide that in the event of termination of employment following a
change of control of the System, as defined in the Severance Agreements, the
System shall pay to the Executive Officer a lump sum severance benefit
together with certain other benefits. The severance benefit payable to
Mr. Poist is up to three times his annual salary and annual incentive
compensation, and to Messrs. Wright, Devanna and Rappoli two times annual
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.

<PAGE>
<PAGE 11>


            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 System's Chief
Executive Officer and oversees the System'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 System'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 System'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 and awards
of cash incentive compensation under the System's Annual Incentive Plan and
1996-1997 Strategic Plan Compensation Program.  Long-term incentive awards in
the form of restricted stock awards of Common Shares are made under the terms
of the System's Long Term Incentive Plan.  Executive Officers also participate
in the Pension Plan and the Employees Savings Plan and receive benefits under
medical and other benefit plans which are available to employees generally. 

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 1996, 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 System's human resources department,
compensation reports contained in proxy materials for companies considered by
the Committee to be similar to the System in size, responsibility and
complexity 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 System's Annual Incentive Plan.  In 1996, the Annual
Incentive Plan provided for awards to the Chief Executive Officer of up to a
maximum of 40% of annual base salary.  Both individual and System performance
goals and objectives were set.  The Chief Executive Officer's award for 1996
was determined on a weighted basis, with two-thirds of the Award potential
attributable to the attainment of System goals and objectives and one-third of
the award potential attributable to individual goals and objectives.  For
1996, the System criteria forming the goals and objectives applicable to the

<PAGE>
<PAGE 12>


Annual Incentive Plan were: 1) meeting pre-established targets comparing
System actual net income to budgeted net income for 1996; 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 System's independent compensation consultant. 
Each of the three System 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 System's 1996 net income exceeded targeted net
income by 11.8%, resulting in a maximum award.  The goal established for cost
control was for operation and maintenance expenses in 1996 to be below the
approved budgeted amounts.  This goal was exceeded by the System having
reduced actual operation and maintenance expenses to 4.4% 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 System was rated the fifth most effective of the 18 companies
in controlling operation and maintenance expenses.  In the aggregate, the
goals and objectives applicable to the System component of the Annual
Incentive Plan were rated as 96% achieved.

      The individual goals of the Chief Executive Officer for 1996 under the
Annual Incentive Plan included: originating and implementing several projects
and programs designed to maximize System synergies, the development of new
business opportunities and the oversight of COM/Electric's restructuring
compliance filings at the Massachusetts Department of Public Utilities.  The
Chief Executive Officer's performance relative to achieving individual goals
was rated as 79% achieved, resulting in an aggregate performance rating of 90%
achievement.

Long-Term Compensation

      The System has in place two long term incentive compensation plans, one
which provides for the potential of awards of restricted Common Shares of the
System and the other providing for the potential of cash awards.

      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 System'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 1994, 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 System's average total return was equal to 142% of the peer
group index, resulting in a maximum award in March of 1997 to Mr. Poist equal
to 50% of his January 1, 1994 base salary ($160,000) in restricted Common
Shares.  Under the terms of the Long-Term Incentive Plan, the restricted
Common Shares generally vest three years from the date they are issued.

      The 1996-1997 Strategic Plan Compensation Program ("Program") provides
Executive Officers the opportunity to receive cash awards up to an amount
which is equivalent to the amount which would be awarded in Grant Shares under
the terms of the Long Term Incentive Plan if a three-year Plan Period ending
in 1997 were in effect (no such Plan Period ending in 1997 was established
under the Long Term Incentive Plan).  Unlike the Long Term Incentive Plan,
which uses Shareholder total return as the sole criterion, the Program also

<PAGE>
<PAGE 13>


rates both the Executive Officer's contributions to achieving results in
implementing the System's Strategic Plan and the Executive Officer's overall
performance.  Awards, if any, under the Program would be made in 1998.

Other Executive Officers

      With respect to other Executive Officers, the Chief Executive Officer,
in conjunction with the System'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
System'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, the Long
Term Incentive Plan and the 1996-1997 Strategic Plan Compensation Program. 
The named Executive Officers are eligible to receive compensation of up to a
maximum of 35% (for Vice Presidents) to 40% (for Operating Company Presidents)
of annual base salary under the Annual Incentive Plan and of up to 40% (for
Vice Presidents) to 50% (for Operating Company Presidents) of annual base
salary in restricted Common Shares under the Long Term Incentive Plan and in
cash awards under the 1996-1997 Strategic Plan Compensation Program. In 1996,
the System goals and objectives constituting the annual performance criteria
and the corresponding weightings which determined eligibility for awards to
the named Executive Officers under 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 such projects as restructuring the System's existing debt portfolio,
converting Canal Electric's Unit No. 2 so that it can be fueled by both oil
and natural gas, implementing an investor relations program and renegotiating
the lease for the System's Cambridge, Massachusetts headquarters.

      The performance criteria applicable to the named Executive Officers
under the Long Term Incentive Plan and the 1996-1997 Strategic Plan
Compensation Program 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 System to deduct the compensation paid to any of the five most highly
compensated officers in excess of $1 million is limited by Federal Law.  The
compensation of each of the System's Executive Officers, however, is
significantly 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 has taken action over the past three years 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 System Common Share
appreciation.

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

<PAGE>
<PAGE 14>


                     COMPARATIVE TOTAL SHAREHOLDER RETURN

      The line graph below compares the cumulative total shareholder return
for the System's Common Shares to the cumulative total return of the S&P 500
Stock Index and a Peer Group Index which is comprised of 91 utility companies
(including the System) which are followed by Value Line, Inc.  The entities
which comprise the Peer Group are also set forth hereinafter.

                      Comparative Five-Year Total Returns
         Commonwealth Energy System, S&P 500 and Value Line Peer Group
                    (Performance results through 12/31/96)


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


                          Line graph illustration of

                 comparative five-year (1992-1996) cumulative

                     total returns based on values listed

                                in chart below.


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


                   1991      1992      1993     1994      1995      1996

      COM/Energy  $100.00   $117.00   $135.25  $114.32   $151.51   $169.98
      S&P 500      100.00    107.79    118.66   120.56    165.78    204.30
      Peer Group   100.00    107.20    119.27   104.73    137.47    139.57

      Assumes $100 invested at the close of trading on the last trading day of
      1991 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.             Minnesota Power & Light Co.
American Electric Power Co., Inc.        Montana Power Co.
Atlantic Energy Inc.                     Nevada Power Co.
Baltimore Gas and Electric Company       New England Electric System
Boston Edison Company                    New York State Electric & Gas Corp.
Carolina Power & Light Co.               Niagara Mohawk Power Corporation
Centerior Energy Corporation             NIPSCO Industries, Inc.
Central Hudson Gas & Electric Corp.      Northeast Utilities
Central Louisiana Electric Company Inc.  Northern States Power Co.
Central Maine Power Co.                  Northwestern Public Service Co.
Central & South West Corp.               OGE Energy, Inc.
Central Vermont Public Service Corp.     Ohio Edison Co.
CILCORP Inc.                             Orange and Rockland Utilities, Inc.
CINergy Corp.                            Otter Tail Power Co.
CIPSCO Incorporated                      PG&E Corporation
CMS Energy Corp.                         PacifiCorp.

<PAGE>
<PAGE 15>


Commonwealth Energy System               PECO Energy Company
Consolidated Edison Co. of New York, Inc.Pinnacle West Capital Corp.
DPL Inc.                                 Portland General Electric Co.
Delmarva Power & Light Co.               Potomac Electric Power Co.
Dominion Resources, Inc.                 PP&L Resources, Inc.
DQE                                      Public Service Co. of Colorado
DTE Energy Corporation                   Public Service Co. of New Mexico
Duke Power Co.                           Public Service Enterprise Group Inc.
Eastern Utilities Associates             Puget Sound Power & Light Co.
Edison International                     Rochester Gas and Electric Corp.
Empire District Electric Company         St. Joseph Light & Power Co.
Enova Corporation                        SCANA Corp.
Entergy Corporation                      Sierra Pacific Resources
Florida Progress Corp.                   SIGCORP
FPL Group, Inc.                          The Southern Company
GPU, Inc.                                Southwestern Public Service Co.
Green Mountain Power Corp.               TECO Energy, Inc.
Hawaiian Electric Industries, Inc.       Texas Utilities Company
Houston Industries, Incorporated         TNP Enterprises, Inc.
Idaho Power Co.                          Tucson Electric Power Co.
IES Industries                           Unicom Corp.
Illinova Corp.                           Union Electric Co.
Interstate Power Co.                     United Illuminating Co.
IPALCO Enterprises, Inc.                 UtiliCorp. United Inc.
Kansas City Power & Light Co.            Washington Water Power Co.
KU Energy Corporation                    Western Resources, Inc.
LG&E Energy Corp.                        Wisconsin Energy Corp.
Long Island Lighting Co.                 WPL Holdings, Inc.
MDU Resources Group, Inc.                WPS Resources Corporation
MidAmerican Energy Holdings Company

               MEETINGS OF THE BOARD OF TRUSTEES AND COMMITTEES

      The System's Board of Trustees held thirteen meetings throughout 1996. 
The Board has an Audit Committee, an Executive Compensation Committee, a
Nominating Committee, a Benefit Review Committee and a Strategic Planning
Committee.

      The Audit Committee is composed of Betty L. Francis, Chairperson,
Peter H. Cressy and Henry Dormitzer.  The Committee held four meetings in
1996.  The Committee's functions are to recommend the selection of an
independent public accountant, to review the scope of and approach to audit
work, to review non-audit services provided by the independent public
accountants and to review accounting principles and practices and the adequacy
of internal controls.

      The Executive Compensation Committee is composed of Michael C.
Ruettgers, Chairperson, William J. O'Brien and Gerald L. Wilson.  During 1996,
the Committee held seven meetings.  This Committee reviews and recommends
compensation and promotional adjustments for certain of the System's personnel
and also reviews and recommends adjustments to the compensation of Trustees.

      The Nominating Committee is composed of Sheldon A. Buckler, Chairperson,
Franklin M. Hundley and William J. O'Brien.  The Committee held one meeting in
1996.  The functions of the Committee are to coordinate suggestions or
searches for potential nominees for the position of Trustee, to review and

<PAGE>
<PAGE 16>


evaluate qualifications of potential nominees and to recommend to the Board of
Trustees nominees for vacancies occurring from time to time on the Board of
Trustees.  The Committee will consider nominees recommended by Shareholders
upon the timely submission of the names of such nominees with their
qualifications and biographical information forwarded to the Nominating
Committee of the Board of Trustees.

      The Benefit Review Committee is composed of Franklin M. Hundley,
Chairperson, Henry Dormitzer and Betty L. Francis.  During 1996, the Committee
held two meetings.  The Committee was organized to consider and recommend to
the Board of Trustees matters associated with the System's major funded
benefit plans.  Functions of the Committee include recommending the
composition of benefit plan boards and reviewing investment policy,
objectives, performance or proposed changes related to the plans.

      The Strategic Planning Committee is composed of Gerald L. Wilson,
Chairperson, Peter H. Cressy and Michael C. Ruettgers.  The Committee held
four meetings during 1996.  The functions of this Committee are to attend
strategic planning sessions, provide support and insight to management and
coordinate management planning activities with the Board of Trustees.

      Effective February 23, 1996, each Trustee who was not an employee of the
System was compensated for his or her services as Trustee at the rate of
$12,500 per year, plus $1,000 for each Trustee and Committee meeting attended. 
The Chairpersons of the Audit, Executive Compensation, Benefit Review and
Strategic Planning Committees each received an additional $1,000 during the
year.  In addition, the Chairman of the Board received a retainer of $20,000
per year for his services as Chairman of the Board and of the Nominating
Committee.

      Trustees are entitled to defer all or a specified portion of their
compensation pursuant to the terms of the Deferred Compensation Plan for
Trustees of Commonwealth Energy System.  An account is established for each
Trustee electing to participate in the Plan, which account is credited with
the amount which would otherwise be payable to the Trustee as compensation for
the Trustee's services.  At the end of each month, interest is credited at an
annual rate equivalent to the weighted average prime lending rate.  Upon the
Trustee's retirement, the account balance is paid either in a lump sum or in
annual installments according to the election made by the Trustee.  The rights
of the Trustee in the account are not assignable and constitute an unsecured
claim against the general assets of the System.

      The Retirement Plan for Trustees of Commonwealth Energy System was
adopted to provide retirement benefits to non-management members of the Board
of Trustees in recognition of their services to the System.  Members of the
Board of Trustees who have served as Trustees for at least five years are
eligible to participate in the Plan.  Each eligible Trustee qualifies for an
annual retirement benefit payment equal to fifty percent of the annual
retainer fee in effect at retirement (excluding retainers for chairing
committees), plus 10% of the annual retainer fee for each year in addition to
five years served, up to 100% of such fee.  The annual retirement benefit
payment is adjusted to reflect the first subsequent increase, if any, in the
annual retainer fee for service on the Board following the Trustee's
retirement.  The annual retirement benefit payment becomes vested at the time
of eligibility and is payable to Trustees for a period equal to the greater of
ten years or the number of years of service as a Trustee.

<PAGE>
<PAGE 17>


                               2-OTHER BUSINESS

      The Board of Trustees of the System knows of no matters other than those
set forth in the Notice of the Annual Meeting which are likely to be brought
before the meeting.  If any other matters of which the Board of Trustees is
not aware are appropriately presented for action, however, it is the intention
of the persons named in the proxy to vote in accordance with their judgment on
such matters.

                                 MISCELLANEOUS

      The independent public accounting firm selected by the Trustees as
Auditor of the System is Arthur Andersen LLP.  It is expected that
representatives of Arthur Andersen LLP will be present at the Annual Meeting
with the opportunity to make a statement if they desire to do so and to
respond to appropriate questions.

      The cost of soliciting proxies will be borne by the System.  A limited
number of regular employees may solicit proxies by telephone or in person
subsequent to the initial solicitation by mail.  In addition, the System has
retained the firm of D. F. King to aid in such solicitation of proxies.  The 
System expects to pay such firm a fee of $5,500 plus expenses.  The System
will reimburse banks, brokerage firms and other custodians, nominees and
fiduciaries for reasonable expenses incurred in sending proxy material to
security owners.

      The proxy card for a participant in the System's Dividend Reinvestment
and Common Share Purchase Plan includes the number of shares which are
registered in the participant's name and the number of shares beneficially
owned by the participant that are held in the name of the nominee of the
System for the Plan.  A participant's vote with respect to the shares
registered in the participant's name is also an instruction by the participant
to the nominee to vote the shares credited to the participant's account under
the Plan.

      In order for Shareholder proposals for the 1998 Annual Meeting of
Shareholders to be eligible for inclusion in the System's Proxy Statement,
they must be received by the System at its principal office in Cambridge,
Massachusetts, prior to December 4, 1997.

      It is important that proxies be returned promptly to avoid unnecessary
expense.  Therefore, Shareholders are urged, regardless of the number of
shares owned, to SIGN, DATE and RETURN the enclosed proxy promptly.



                                      Michael P. Sullivan
                                      Vice President, Secretary
                                      and General Counsel


Cambridge, Massachusetts 02142-9150
March 28, 1997

<PAGE>
<PAGE 18>


APPENDICES
                          COMMONWEALTH ENERGY SYSTEM
               Proxy-Annual Meeting of Shareholders-May 1, 1997
          This Proxy is Solicited on Behalf of the Board of Trustees

      The undersigned hereby appoints Sheldon A. Buckler, Franklin M. Hundley
and William G. Poist and each or any of them, with power of substitution, as
proxies to attend the Annual Meeting of Shareholders of the System to be held
on Thursday, May 1, 1997 and at any adjournment thereof and to vote the number
of shares which the shareholder(s) would be entitled to vote if personally
present:

      To vote your shares for all Trustee nominees, mark the "FOR"  box on
item 1. To withhold voting for all nominees, mark the "WITHHELD" box.  If you
do not wish  your shares voted "FOR" a particular nominee, mark the
"EXCEPTIONS" box  and enter the name(s) of the exception(s) in the space
provided.

_____________________________________________________________________________
                      The Trustees recommend a vote "FOR"
1.  Election of Trustees                        FOR    WITHHELD   
EXCEPTIONS*
    Nominees: K. C. Bryant                      [  ]     [  ]         [  ]
              F. M. Hundley
              G. L. Wilson
              *EXCEPTIONS: ____________________
_____________________________________________________________________________
2.  Upon any other business that may properly come before the meeting.
_____________________________________________________________________________
      This Proxy will be voted as directed above.  If no other indication
        is made, this proxy will be voted FOR the election of Trustes.
           Any proxy or proxies to vote such shares at said meeting
          heretofore given by the sharheolder(s) are hereby revoked.
                     PLEASE SIGN AND DATE ON REVERSE SIDE





                                                           
____________________________________________________

                                                           
____________________________________________________
                                                           Signature(s)
should agree with name(s) printed below

       (When signing as attorney, executor or administrator, trustee or
           guardian, etc., please indicate your full title as such.)

Acct. No.                                                  No. of Shares





Dated_______________________, 1997

           PLEASE SIGN, DATE AND RETURN IN ENCLOSED PREPAID ENVELOPE



<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,
1996 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-31-1996
<PERIOD-END>                   DEC-31-1996
<PERIOD-TYPE>                         YEAR
<BOOK-VALUE>                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>        1,045,627
<OTHER-PROPERTY-AND-INVEST>         13,395
<TOTAL-CURRENT-ASSETS>             196,491
<TOTAL-DEFERRED-CHARGES>           173,442
<OTHER-ASSETS>                           0
<TOTAL-ASSETS>                   1,428,955
<COMMON>                            43,059
<CAPITAL-SURPLUS-PAID-IN>          111,685
<RETAINED-EARNINGS>                260,950
<TOTAL-COMMON-STOCKHOLDERS-EQ>     415,694
               13,020
                              0
<LONG-TERM-DEBT-NET>               355,305
<SHORT-TERM-NOTES>                       0
<LONG-TERM-NOTES-PAYABLE>          118,475
<COMMERCIAL-PAPER-OBLIGATIONS>           0
<LONG-TERM-DEBT-CURRENT-PORT>       21,913
              820
<CAPITAL-LEASE-OBLIGATIONS>         12,346
<LEASES-CURRENT>                     1,531
<OTHER-ITEMS-CAPITAL-AND-LIAB>     489,851
<TOT-CAPITALIZATION-AND-LIAB>    1,428,955
<GROSS-OPERATING-REVENUE>        1,010,905
<INCOME-TAX-EXPENSE>                36,099
<OTHER-OPERATING-EXPENSES>         878,141
<TOTAL-OPERATING-EXPENSES>         914,240
<OPERATING-INCOME-LOSS>             96,665
<OTHER-INCOME-NET>                   4,878
<INCOME-BEFORE-INTEREST-EXPEN>     101,543
<TOTAL-INTEREST-EXPENSE>            42,368
<NET-INCOME>                        59,175
          1,050
<EARNINGS-AVAILABLE-FOR-COMM>       58,125
<COMMON-STOCK-DIVIDENDS>            33,155
<TOTAL-INTEREST-ON-BONDS>           35,586
<CASH-FLOW-OPERATIONS>              63,325
<EPS-PRIMARY>                         2.70
<EPS-DILUTED>                            0
        


</TABLE>

<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,
1995 and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<RESTATED>
<CIK> 0000071304
<NAME> COMMONWEALTH ENERGY SYSTEM
<MULTIPLIER> 1,000
       
<S>                            <C>
<FISCAL-YEAR-END>              DEC-31-1995
<PERIOD-END>                   DEC-31-1995
<PERIOD-TYPE>                         YEAR
<BOOK-VALUE>                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>        1,043,204
<OTHER-PROPERTY-AND-INVEST>         13,214
<TOTAL-CURRENT-ASSETS>             184,960
<TOTAL-DEFERRED-CHARGES>           150,964
<OTHER-ASSETS>                           0
<TOTAL-ASSETS>                   1,392,342
<COMMON>                            43,056
<CAPITAL-SURPLUS-PAID-IN>          111,749
<RETAINED-EARNINGS>                235,980
<TOTAL-COMMON-STOCKHOLDERS-EQ>     390,785
               13,840
                              0
<LONG-TERM-DEBT-NET>               377,181
<SHORT-TERM-NOTES>                       0
<LONG-TERM-NOTES-PAYABLE>           55,600
<COMMERCIAL-PAPER-OBLIGATIONS>           0
<LONG-TERM-DEBT-CURRENT-PORT>       41,513
              820
<CAPITAL-LEASE-OBLIGATIONS>         13,291
<LEASES-CURRENT>                     1,640
<OTHER-ITEMS-CAPITAL-AND-LIAB>     497,672
<TOT-CAPITALIZATION-AND-LIAB>    1,392,342
<GROSS-OPERATING-REVENUE>          929,288
<INCOME-TAX-EXPENSE>                24,574
<OTHER-OPERATING-EXPENSES>         810,171
<TOTAL-OPERATING-EXPENSES>         834,745
<OPERATING-INCOME-LOSS>             94,543
<OTHER-INCOME-NET>                   1,461
<INCOME-BEFORE-INTEREST-EXPEN>      96,004
<TOTAL-INTEREST-EXPENSE>            44,608
<NET-INCOME>                        51,396
          1,110
<EARNINGS-AVAILABLE-FOR-COMM>       50,286
<COMMON-STOCK-DIVIDENDS>            32,032
<TOTAL-INTEREST-ON-BONDS>           38,581
<CASH-FLOW-OPERATIONS>             124,671
<EPS-PRIMARY>                         2.36
<EPS-DILUTED>                            0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> UT
<LEGEND>
This schedule contains restated 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, 1994 and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<RESTATED>
<CIK> 0000071304
<NAME> COMMONWEALTH ENERGY SYSTEM
<MULTIPLIER> 1,000
       
<S>                            <C>
<FISCAL-YEAR-END>              DEC-31-1994
<PERIOD-END>                   DEC-31-1994
<PERIOD-TYPE>                         YEAR
<BOOK-VALUE>                      PER-BOOK
<TOTAL-NET-UTILITY-PLANT>        1,014,857
<OTHER-PROPERTY-AND-INVEST>         13,648
<TOTAL-CURRENT-ASSETS>             181,606
<TOTAL-DEFERRED-CHARGES>           134,921
<OTHER-ASSETS>                           0
<TOTAL-ASSETS>                   1,345,032
<COMMON>                            42,103
<CAPITAL-SURPLUS-PAID-IN>          103,168
<RETAINED-EARNINGS>                217,726
<TOTAL-COMMON-STOCKHOLDERS-EQ>     362,997
               14,660
                              0
<LONG-TERM-DEBT-NET>               418,307
<SHORT-TERM-NOTES>                       0
<LONG-TERM-NOTES-PAYABLE>           44,850
<COMMERCIAL-PAPER-OBLIGATIONS>           0
<LONG-TERM-DEBT-CURRENT-PORT>       30,973
              820
<CAPITAL-LEASE-OBLIGATIONS>         14,098
<LEASES-CURRENT>                     1,631
<OTHER-ITEMS-CAPITAL-AND-LIAB>     456,696
<TOT-CAPITALIZATION-AND-LIAB>    1,345,032
<GROSS-OPERATING-REVENUE>          977,585
<INCOME-TAX-EXPENSE>                29,154
<OTHER-OPERATING-EXPENSES>         856,616
<TOTAL-OPERATING-EXPENSES>         885,770
<OPERATING-INCOME-LOSS>             91,815
<OTHER-INCOME-NET>                     627
<INCOME-BEFORE-INTEREST-EXPEN>      92,442
<TOTAL-INTEREST-EXPENSE>            43,474
<NET-INCOME>                        48,968
          1,170
<EARNINGS-AVAILABLE-FOR-COMM>       47,798
<COMMON-STOCK-DIVIDENDS>            31,305
<TOTAL-INTEREST-ON-BONDS>           39,442
<CASH-FLOW-OPERATIONS>             126,563
<EPS-PRIMARY>                         2.29
<EPS-DILUTED>                            0
        


</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission