BOSTON EDISON COMPANY 
 
                          Change in Control Agreement 
                          --------------------------- 
 
 
 
 
     AGREEMENT, made this ___ day of ________________, 1996, by and between 
________     ("Executive") and Boston Edison Company (the "Company"), 
 
                                  WITNESSETH 
 
     WHEREAS, the Board of Directors of the Company (the "Board") has 
determined that it is in the best interests of the Company and its 
shareholders for the Company to agree to provide benefits under the 
circumstances described below to Executive and other executives who are 
responsible for the policy-making functions of the Company and the overall 
viability of the Company's business; and 
 
     WHEREAS, the Board recognizes that the possibility of a change of control 
of the Company is unsettling to such executives and desires to make 
arrangements at this time to help assure their continuing dedication to their 
duties to the Company and its shareholders, notwithstanding any attempts by 
outside parties to gain control of the Company; and 
 
     WHEREAS, the Board believes it important, should the Company receive 
proposals from outside parties, to enable such executives, without being 
distracted by the uncertainties of their own employment situation, to perform 
their regular duties, and where appropriate to assess such proposals and 
advise the Board as to the best interests of the Company and its shareholders 
and to take such other action regarding such proposals as the Board determines 
to be appropriate; and 
 
     WHEREAS, the Board also desires to demonstrate to the executives that the 
Company is concerned with their welfare and intends to provide that loyal 
executives are treated fairly; and 
 
     WHEREAS, the Board wishes to assure the executives of fair severance 
should any of their employment terminate in specified circumstances following 
a change of control of the Company and to assure the executives of other 
benefits upon a change of control. 
 
     NOW, THEREFORE, in consideration of the premises and the mutual covenants 
contained herein, the parties hereto agree as follows: 
 
     1.     In the event that any individual, corporation, partnership, 
company, or other entity (a "Person"), which term shall include a "group" 
(within the meaning of section 13(d) of the Securities Exchange Act of 1934 
(the "Act")), begins a tender or exchange offer, circulates a proxy to the 
Company's shareholders, or takes other steps to effect a "Change of Control" 
(as defined in Exhibit A attached hereto and made a part hereof), Executive 
agrees that he will not voluntarily leave the employ of the Company and will 
render the services contemplated in the recitals to this Agreement until such 
Person has terminated the efforts to effect a Change of Control or until a 
Change of Control has occurred. 
 
     2.     If, within 24 months following a Change of Control (the "Post 
Change of Control Period") Executive's employment with the company is 
terminated by the Company for any reason other than for "Cause" or 
"Disability" (as defined paragraph 4 below), or as a result of Executive's 
death, or Executive terminates such employment for Good Reason (as defined in 
paragraph 5 below): 
 
     (a)    The Company will pay to Executive within 30 days of such  
            termination of employment a lump-sum cash payment equal to the 
            sum of (i) the Executive's annual base salary ("Annual Base 
            Salary") through the date of such termination of employment to 
            the extent not theretofore paid, (ii) a prorated portion of the 
            target award payable under the Company's Executive Annual 
            Incentive Compensation Plan, or any comparable or successor plan 
            (the "Annual Plan") determined by calculating the product of, (A) 
            the target bonus award payable for the fiscal year in which the 
            date of termination occurs under the Annual Plan, times (B) a 
            fraction, the numerator of which is the number of days in the 
            current fiscal year through the date of termination of employment, 
            and the denominator of which is 365, (iii) a prorated portion of 
            the target award payable under the Company's Performance Share 
            Plan, or any comparable or successor plan (the "Long-Term Plan") 
            for the performance period ending on the last day of the fiscal 
            year during which the date of termination of employment occurs 
            determined by calculating the product of (A) the target award 
            payable for such performance period and (B) a fraction, the 
            numerator of which is the number of days in the current 
            performance period through the date of termination, and the 
            denominator of which is the actual number of days in the 
            performance period (provided that if any awards are expressed in 
            shares of common stock rather than cash, the Company will pay the 
            cash equivalent of such awards based on the closing price per 
            share as reported in the Wall Street Journal (Eastern Edition) New 
            York Stock Exchange Composite Transactions determined on the date 
            prior to the date of the Change of Control or the average per 
            share price for the 10 trading days preceding the date of the 
            Change of Control (whichever is higher)) and (iv) any compensation 
            for the fiscal year in which the date of termination occurs 
            previously deferred by the Executive (together with any accrued 
            interest or earnings thereon) and any accrued vacation pay, in 
            each case to the extent not theretofore paid; and 
 
     (b)    any stock, stock option or cash awards granted to the Executive by 
            the Company that would have become vested upon continued  
            employment by the Executive shall immediately vest in full  
            notwithstanding any provision to the contrary of such grant and 
            shall remain exercisable until the earlier of the fifth  
            anniversary of such termination and the latest date on which such 
            grant could have been exercised; and 
 
     (c)    the Company will pay to Executive within 30 days of such  
            termination of employment a lump-sum cash payment equal to three 
            times:  (A) the amount of the Executive's Annual Base Salary at 
            the rate in effect immediately prior to the date of termination or 
            at the rate in effect immediately prior to the Change of Control, 
            whichever is higher, and (B) the amount of the actual bonus paid 
            to the Executive under the Annual Plan and the Long-Term Plan for 
            the most recently completed fiscal year ended before the Change of 
            Control, or the target bonus payable under the Annual Plan and 
            Long-Term Plan for the fiscal year during which the termination of 
            employment occurs, whichever is higher (provided that if any  
            awards are expressed in shares of common stock rather than cash, 
            the Company will pay the cash equivalent of such awards based on 
            the closing price per share as reported in the Wall Street Journal 
            (Eastern Edition) New York Stock Exchange Composite Transactions 
            determined on the date prior to the date of the Change of Control 
            or the average per share price for the 10 trading days preceding 
            the date of the Change of Control (whichever is higher)); 
 
     (d)    the Company will pay to Executive within 30 days of such  
            termination of employment a lump-sum cash payment equal to the 
            full balance standing to his credit with the Company under any and 
            all deferred compensation plans or arrangements and the lump-sum 
            actuarial equivalent of the Executive's accrued benefit under any 
            supplement retirement plan or arrangement (the sum of the amounts 
            described in subsections (a) and (d) shall be hereinafter referred 
            to as the "Accrued Obligations"); and 
 
     (e)    an amount equal to the excess of (i) the lump-sum actuarial  
            equivalent of the accrued benefit under (a) the Company's  
            qualified defined benefit Retirement Plan (the "Retirement Plan") 
            (utilizing actuarial assumptions no less favorable to the  
            Executive than those in effect under the Retirement Plan  
            immediately prior to the date of the Change of Control), and (b) 
            any supplemental retirement plan of the Company in which the  
            Executive participates (the "SERP") which the Executive would  
            receive if the Executive's employment continued for two years  
            after the date of termination assuming for these purposes that all 
            accrued benefits are fully vested, and further assuming that the 
            Executive's annual compensation for purposes of determining  
            benefits under the Retirement Plan and SERP ("Covered  
            Compensation") in each of the two years is at least equal to the 
            higher of Executive's annual rate of Covered Compensation for the 
            most recently completed fiscal year ending prior to the date of 
            the Change of Control or the year in which the Change of Control 
            occurs, over (ii) the lump-sum actuarial equivalent of the  
            Executive's actual accrued benefit (paid or payable), if any, 
            under the Retirement Plan and the SERP as of the date of  
            termination and; 
 
     (f)    Executive, together with his dependents, will continue following 
            such termination of employment to participate fully at the  
            Company's expense in all welfare benefit plans, programs,  
            practices and policies, including without limitation, life,  
            medical, disability, dental accidental death and travel insurance 
            plans, maintained or sponsored by the Company immediately prior to 
            the Change of Control, or receive substantially the equivalent  
            coverage (or the full value thereof in cash) from the Company,  
            until the longer of the second anniversary of such termination or 
            any longer period as may be provided by the terms of the  
            appropriate plan, program, practice or policy, provided, however, 
            that if the Executive becomes re-employed with another employer 
            and is eligible to receive medical or other welfare benefits under 
            another employer provided plan, the medical and other welfare 
            benefits described herein shall be secondary to those provided 
            under such other plan during such applicable period of  
            eligibility.  For purposes of determining eligibility (but not the 
            time of commencement of benefits) of the Executive for any retiree 
            benefits pursuant to such plans, practices, programs and policies, 
            the Executive shall be considered to have remained employed until 
            two years after the date of termination and to have retired on the 
            last day of such period; and 
 
     (g)    to the extent not theretofore paid or provided for, the Company 
            shall timely pay or provide to the Executive any other amounts or 
            benefits required to be paid or provided or which the Executive is 
            eligible to receive under any plan, program, policy, practice, 
            contract or agreement of the Company ("Other Benefits"); and 
 
     (h)    the Company will promptly reimburse Executive for any and all  
            legal fees and expenses (including, without limitation,  
            stenographer fees, printing costs, etc.) incurred by him as a 
            result of such termination of employment, including without 
            limitation all fees and expenses incurred to enforce the 
            provisions of this Agreement or contesting or disputing that 
            the termination of his employment is for Cause or other than 
            for Good Reason (regardless of the outcome thereof). 
 
     Notwithstanding anything herein to the contrary, to the extent that any 
payment or benefit provided for herein is required to be paid or vested an any 
earlier date under the terms of any plan, agreement or arrangements, such 
plan, agreement or arrangement shall control. 
 
     3.     Death, Disability, Cause, Other Than For Good Reason. 
            ---------------------------------------------------- 
 
     (a)    DEATH.  If the Executive's employment shall terminate during the 
            Post Change of Control Period by reason of the Executive's death, 
            this Agreement shall terminate without further obligations to the 
            Executive's legal representatives under this Agreement, other than 
            for payment of Accrued Obligations and the timely payment or  
            provision of Other Benefits.  Accrued Obligations shall be paid to 
            the Executive's estate or beneficiary, as applicable, in a lump 
            sum in cash within 30 days of death. 
 
     (b)    DISABILITY.  If the Executive's employment is terminated during 
            the Post Change of Control Period by reason of the Executive's 
            Disability, this Agreement shall terminate without further  
            obligations to the Executive other than for payment of Accrued 
            Obligations and the timely payment or provision of Other Benefits. 
            Accrued Obligations shall be paid to the Executive in a lump sum 
            in cash within 30 days of the date of termination of employment. 
            For purposes of this Agreement, "Disability" shall mean the 
            absence of the Executive from the Executive's duties with the 
            Company on a full-time basis for 180 consecutive business days as 
            a result of incapacity due to mental or physical illness which is 
            determined to be total and permanent by a physician selected by 
            the Company or its insurers and acceptable to the Executive or the 
            Executive's legal representative.  If the Company determines in 
            good faith that the Disability of the Executive has occurred  
            during the Post Change of Control Period, it may give the  
            Executive written notice of its intention to terminate the  
            Executive's employment.  In such event, the Executive's employment 
            with the Company shall terminate effective on the 30th day after 
            receipt of such notice by the Executive, provided that, within the 
            30 days of such receipt, the Executive shall not have returned to 
            full-time performance of the Executive's duties. 
 
     (c)    CAUSE.  If the Executive's employment shall be terminated for 
            Cause (as defined in Section 4 below) during the Post Change of 
            Control Period, this Agreement shall terminate without further 
            obligations to the Executive other than the obligation to pay the 
            Executive (A) his Annual Base Salary through the date of  
            termination, (B) the amount of any compensation previously  
            deferred by the Executive, and (C) Other Benefits, in each case to 
            the extent theretofore unpaid.  If the Executive voluntarily  
            terminates employment during the Post Change of Control Period, 
            excluding a termination for Good Reason, this Agreement shall 
            terminate without further obligations to the Executive other than 
            for Accrued Obligations and the timely payment or provisions of 
            Other Benefits.   
 
     In such case, all Accrued Obligations shall be paid to the Executive in a 
lump sum in cash within 30 days of date of the termination of employment. 
 
     4.     "Cause" means only: (a) commission of a felony or gross neglect of 
duty by the Executive which is intended to result in substantial personal 
enrichment of the Executive at the expense of the Company, (b) conviction of a 
crime involving moral turpitude, or (c) willful failure by the Executive of 
his duties to the Company which failure is deliberate on the Executive's part, 
results in material injury to the Company, and continues for more than 30 days 
after written notice given to the Executive pursuant to a two-thirds vote of 
all of the members of the Board at a meeting called and held for such purpose 
(after reasonable notice to Executive) and at which meeting the Executive and 
his counsel were given an opportunity to be heard, such vote to set forth in 
reasonable detail the nature of the failure.  For purposes of this definition 
of Cause, no act or omission shall be considered to have been "willful" unless 
it was not in good faith and the Executive had knowledge at the time that the 
act or omission was not in the best interest of the Company.  Any act, or 
failure to act, based on authority given pursuant to a resolution duly adopted 
by the Board or upon the instructions of the Chief Executive Officer or 
another senior officer of the Company or based on the advice of counsel of the 
Company shall be conclusively presumed to be done, or omitted to be done, by 
the Executive in good faith and in the best interest of the Company. 
 
     5.     Executive shall be deemed to have voluntarily terminated his 
employment for Good Reason if the Executive leaves the employ of the Company 
for any reason following: 
 
     (a)    The assignment to the Executive of any duties inconsistent in any 
            respect with the Executive's position (including status, offices, 
            titles and reporting requirements), authority, duties or  
            responsibilities immediately prior to the Change of Control; or 
            any other action by the Company which results in a diminution in 
            such position, authority, duties or responsibilities, excluding 
            for this purpose an isolated, insubstantial and inadvertent action 
            not taken in bad faith and which is remedied by the Company  
            promptly after receipt of notice thereof given by the Executive; 
 
     (b)    Any reduction in the Executive's rate of Annual Base Salary for 
            any fiscal year to less than 100% of the rate of Annual Base 
            Salary paid to him in the completed fiscal year immediately 
            preceding the Change of Control, or reduction in Executive's total 
            cash and stock compensation opportunities, including salary and 
            incentives, for any fiscal year to less than 100% of the total 
            cash and stock compensation opportunities made available to him in 
            the completed fiscal year immediately preceding the Change of 
            Control (for this purpose, such opportunities shall be deemed 
            reduced if the objective standards by which the Executive's 
            incentive compensation measured becomes stringent or the amount of 
            such compensation is materially reduced on a discretionary basis 
            from the amount that would be payable solely by reference to the 
            objectives; or 
 
     (c)    Failure of the Company to continue in effect any retirement, life, 
            medical, dental, disability accidental death or travel insurance 
            plan, in which Executive was participating immediately prior to 
            the Change of Control unless the Company provides Executive with a 
            plan or plans that provide substantially similar benefits, or the 
            taking of any action by the Company that would adversely effect 
            Executive's participation in or materially reduce Executive's 
            benefits under any of such plans or deprive Executive of any 
            material fringe benefit enjoyed by Executive immediately prior to 
            the Change of Control other than an isolated, insubstantial and 
            inadvertent failure not occurring in bad faith and which is 
            remedied by the Company promptly after receipt of notice thereof 
            given by the Executive; or 
 
     (d)    The Company requires Executive to be based at any office or 
            location outside the Greater Boston Metropolitan Area or the 
            Company requires the Executive to travel on Company business to 
            a substantially greater extent than required immediately prior 
            to the date of Change of Control; or 
 
     (e)    Any purported termination by the Company of the Executive's 
            employment otherwise than is expressly permitted by this 
            Agreement; or 
 
     (f)    Any failure by the Company to comply with and satisfy Section 8 
            of this Agreement. 
 
     For purposes of this Section 5, any good faith determination of Good 
Reason made by the Executive shall be conclusive. 
 
     6.     If any payment or benefit received by Executive (whether paid or 
payable or distributed or distributable pursuant to the terms of this 
Agreement or otherwise, but determined without regard to any additional 
payments required under this Section 6), would be  subject to the excise tax 
imposed by Section 4999 of the Internal Revenue Code of 1986, as amended (the 
"Code"), or any interest or penalties are incurred by the Executive with 
respect to such excise tax) the Company will pay to Executive an additional 
amount in cash (the "Additional Amount") equal to the amount necessary to 
cause the aggregate payments and benefits received by Executive, including 
such Additional Amount (net of all federal, state, and local income taxes and 
all taxes payable as a result of the application of Sections 28OG and 4999 of 
the Code and including any interest and penalties with respect to such taxes) 
to be equal to the aggregate payments and benefits Executive would have 
received, excluding such Additional Amount (net of all federal, state and 
local income taxes) as if Sections 28OG and 4999 of the Code (and any 
successor provisions thereto) had not been enacted into law. 
 
     Following the termination of Executive's employment, Executive may submit 
to the Company a written opinion (the "Opinion") of a nationally recognized 
accounting firm, employment consulting firm, or law firm selected by Executive 
setting forth a statement and a calculation of the Additional Amount.  The 
determination of such firm concerning the extent of the Additional Amount 
(which determination need not be free from doubt), shall be final and binding 
on both Executive and the Company.  The Company will pay to Executive the 
Additional Amount not later than 10 days after such firm has rendered the 
Opinion.  The Company agrees to pay the fees and expenses of such firm in 
preparing and rendering the opinion. 
 
     If, following the payment to Executive of the Additional Amount, 
Executive's liability for the excise tax imposed by Section 4999 of the Code 
on the payments and benefits received by Executive is finally determined (at 
such time as the Internal Revenue Service is unable to make any further 
adjustment to the amount of such liability) to be less than the amount thereof 
set forth in the Opinion, Executive shall reimburse the Company, without 
interest, in an amount equal to the amount by which the Additional Amount 
should be reduced to reflect such decrease in the actual excise tax 
liability.  The calculation of such reimbursement shall be made by a 
nationally recognized accounting firm, an employment consulting firm, or a law 
firm selected by Executive, whose determination shall be binding on Executive 
and the Company and whose fees and expenses therefor shall be paid by the 
Company. 
 
     7.     In the case of any dispute under this Agreement, Executive may 
initiate binding arbitration in Boston, Massachusetts, before the American 
Arbitration Association by serving a notice to arbitrate upon the Company or, 
at Executive's election, institute judicial proceedings, in either case within 
90 days of the effective date of his termination or, if later, his receipt of 
notice of termination, or such longer period as may be reasonably necessary 
for Executive to take such action if illness or incapacity should impair his 
taking such action within the 90-day period.  The Company shall not have the 
right to initiate binding arbitration, and agrees that upon the initiation of 
binding arbitration by Executive pursuant to this paragraph 7 the Company 
shall cause to be dismissed any judicial proceedings it has brought against 
Executive relating to this Agreement.  The Company authorizes Executive from 
time to time to retain counsel of his choice to represent Executive in 
connection with any and all actions, proceedings, and/or arbitration, whether 
by or against the Company or any director, officer, shareholder, or other 
person affiliated with the Company, which may affect Executive's rights under 
this Agreement.  The Company agrees (i) to pay the fees and expenses of such 
counsel, (ii) to pay the cost of such arbitration and/or judicial proceeding, 
and (iii) to pay interest to Executive on all amounts owed to Executive under 
this Agreement during any period of time that such amounts are withheld 
pending arbitration and/or judicial proceedings.  Such interest will be at the 
base rate as announced from time to time by The First National Bank of Boston. 
 
     In addition, notwithstanding any existing prior attorney-client 
relationship between the Company and counsel retained by Executive, the 
Company irrevocably consents to Executive entering into an attorney-client 
relationship with such counsel and agrees that a confidential relationship 
shall exist between Executive and such counsel. 
 
     8.     If the Company is at any time before or after a Change of Control 
merged or consolidated into or with any other corporation or other entity 
(whether or not the Company is the surviving entity), or if substantially all 
of the assets thereof are transferred to another corporation or other entity, 
the provisions of this Agreement will be binding upon and inure to the benefit 
of the corporation or other entity resulting from such merger or consolidation 
or the acquirer of such assets (the "Successor Entity"), and this paragraph 8 
will apply in the event of any subsequent merger or consolidation or transfer 
of assets.  The Company will require any such Successor Entity to assume 
expressly and agree to perform this Agreement in the same manner and to the 
same extent that the Company would be required to perform if no such 
transaction had taken place.  As used in this Agreement, "Company" shall mean 
the Company as hereinbefore defined and any Successor Entity which assumes and 
agrees to perform this Agreement by operation of law or otherwise. 
 
     In the event of any merger, consolidation, or sale of assets described 
above, nothing contained in this Agreement will detract from or otherwise 
limit Executive's right to or privilege of participation in any stock option 
or purchase plan or any bonus, profit sharing, pension, group insurance, 
hospitalization, or other incentive or benefit plan or arrangement which may 
be or become applicable to executives of the corporation resulting from such 
merger or consolidation or the corporation acquiring such assets of the 
Company. 
 
     In the event of any merger, consolidation, or sale of assets described 
above, references to the Company in this Agreement shall unless the context 
suggests otherwise be deemed to include the entity resulting from such merger 
or consolidation or the acquirer of such assets of the Company. 
 
     9.     Any termination by the Company for Cause, or by the Executive for 
Good Reason, shall be communicated by Notice of Termination to the other party 
hereto given in accordance with the last paragraph of Section 14 of this 
Agreement.  For purposes of this Agreement, a "Notice of Termination" means a 
written notice which (i) indicates the specific termination provision in this 
Agreement relied upon, (ii) to the extent applicable, sets forth in reasonable 
detail the facts and circumstances claimed to provide a basis for termination 
of the Executive's employment under the provision so indicated and (iii) if 
the Date of Termination (as defined below) is other than the date of receipt 
of such notice, specifies the termination date (which date shall be not more 
than thirty days after the giving of such notice).  The failure by the 
Executive or the Company to set forth in the Notice of Termination any fact or 
circumstance which contributes to a showing of Good Reason or Cause shall not 
waive any right of the Executive or the Company, respectively, hereunder or 
preclude the Executive or the Company, respectively, from asserting such fact 
or circumstance in enforcing the Executive's or the Company's rights  
hereunder. 
 
     "Date of Termination" means (i) if the Executive's employment is 
terminated by the Company for Cause, or by the Executive for Good Reason, the 
date of receipt of the Notice of Termination or any later date specified 
therein, as the case may be, (ii) if the Executive's employment is terminated 
by the Company other than for Cause or Disability, the Date of Termination 
shall be the date on which the Company notifies the Executive of such 
termination and (iii) if the Executive's employment is terminated by reason of 
death or Disability, the Date of Termination shall be the date of death of the 
Executive or the effective date of the Disability, as the case may be. 
 
     10.    All payments required to be made by the Company hereunder to 
Executive or his dependents, beneficiaries, or estate will be subject to the 
withholding of such amounts relating to tax and/or other payroll deductions as 
may be required by law. 
 
     11.    There shall be no requirement on the part of the Executive to seek 
other employment or otherwise mitigate damages in order to be entitled to the 
full amount of any payments and benefits to which Executive is entitled under 
this Agreement, and the amount of such payments and benefits shall not be 
reduced by any compensation or benefits received by Executive from other 
employment. 
 
     12.    Nothing contained in this Agreement shall be construed as a 
contract of employment between the Company and the Executive, or as a right of 
the Executive to continue in the employ of the Company, or as a limitation of 
the right of the Company to discharge the Executive with or without Cause; 
provided that the Executive shall have the right to receive upon termination 
of his employment the payments and benefits provided in this Agreement and 
shall not be deemed to have waived any rights he may have either at law or in 
equity in respect of such discharge. 
 
     13.    No amendment, change, or modification of this Agreement may be 
made except in writing, signed by both parties. 
 
     14.    This Agreement shall terminate on the third anniversary of the 
date hereof, provided, however, that commencing on the date one year after the 
date hereof, and on each annual anniversary of such date (each such date 
hereinafter referred to as a "Renewal Date"), unless previously terminated, 
the term of this Agreement shall be automatically extended so as to terminate 
three years from such Renewal Date, unless at least sixty days prior to the 
Renewal Date the Company shall give notice to the Executive that the term of 
this Agreement shall not be so extended.  This Agreement shall not apply to a 
Change of Control which takes place after the termination of this Agreement. 
 
     Payments made by the Company pursuant to this Agreement shall be in lieu 
of severance payments, if any, which might otherwise be available to Executive 
under any severance plan, policy, program or arrangement generally applicable 
to the employees of the Company.  If for any reason Executive receives 
severance payments (other than under this Agreement) upon the termination of 
his employment with the Company, the amount of such payments shall be deducted 
from the amount paid under this Agreement.  The purpose of this provision is 
solely to avert a duplication of benefits; neither this provision nor the 
provisions of any other agreement shall be interpreted to reduce the amount 
payable to Executive below the amount that would otherwise have been payable 
under this Agreement. 
 
     The provisions of this Agreement shall be binding upon and shall inure 
to the benefit of Executive, his executors, administrators, legal 
representatives, and assigns, and the Company and its successors. 
 
     The validity, interpretation, and effect of this Agreement shall be 
governed by the laws of The Commonwealth of Massachusetts.  Any ambiguities 
in this Agreement shall be construed in favor of the Executive. 
 
     The invalidity or unenforceability of any provisions of this Agreement 
shall not affect the validity or enforceability of any other provision of 
this Agreement, which shall remain in full force and effect. 
 
     The Company shall have no right of set-off or counterclaims, in respect 
of any claim, debt, or obligation, against any payments to Executive, his 
dependents, beneficiaries, or estate provided for in this Agreement. 
 
     No right or interest to or in any payments shall be assignable by the 
Executive; PROVIDED, however, that this provision shall not preclude him from 
designating one or more beneficiaries to receive any amount that may be 
payable after his death and shall not preclude the legal representative of his 
estate from assigning any right hereunder to the person or persons entitled 
thereto under his will or, in the case of intestacy, to the person or persons 
entitled thereto under the laws of intestacy applicable to his estate.  The 
term "beneficiaries" as used in this Agreement shall mean a beneficiary or 
beneficiaries so designated to receive any such amount, or if no beneficiary 
has been so designated, the legal representative of the Executive's estate. 
 
     No right, benefit, or interest hereunder, shall be subject to 
anticipation, alienation, sale, assignment, encumbrance, charge, pledge, 
hypothecation, or set-off in respect of any claim, debt, or obligation, or to 
execution, attachment, levy, or similar process, or assignment by operation of 
law.  Any attempt, voluntary or involuntary, to effect any action specified in 
the immediately preceding sentence shall, to the full extent permitted by law, 
be null, void, and of no effect.   
 
     All notices and other communications hereunder shall be in writing and 
shall be given by hand delivery to the other party or by registered or 
certified mail, return receipt requested, postage prepaid, addressed as 
follows: 
 
 
     If to the Executive: 
     ------------------- 
 
 
     If to the Company:       Boston Edison Company 
     -----------------        800 Boylston Street 
                              Boston, MA  02199 
                              Attention: General Counsel 
 
 
or to such other address as either party shall have furnished to the other in 
writing in accordance herewith.  Notice and communications shall be effective 
when actually received by the addressee. 
 
 
 
 
 
 
     IN WITNESS WHEREOF, Boston Edison Company and Executive have each caused 
this Agreement to be duly executed and delivered as of the date set forth 
above. 
 
                                    BOSTON EDISON COMPANY 
 
 
                                    By:______________________________ 
                                       Name: 
                                       Title: 
 
 
                                    ________________________________ 
                                       Executive 
 
 
 
 
 
 
                                EXHIBIT A 
 
     CHANGE OF CONTROL.  For the purposes of this Agreement, a "Change of 
Control" shall mean: 
 
     (a)    The acquisition by any Person of beneficial ownership (within the 
            meaning of Rule 13d-3 promulgated under the Exchange Act) of 30% 
            or more of either (i) the then outstanding shares of common stock 
            of the Company (the "Outstanding Company Common Stock") or (ii) 
            the combined voting power of the then outstanding voting 
            securities of the Company entitled to vote generally in the 
            election of directors (the "Outstanding Company Voting 
            Securities"); provided, however, that for purposes of this 
            subsection (a), the following acquisitions shall not constitute a 
            Change of Control:  (i) any acquisition directly from the Company, 
            (ii) any acquisition by the Company, (iii) any acquisition by any 
            employee benefit plan (or related trust) sponsored or maintained 
            by the Company or any corporation controlled by the Company or 
            (iv) any acquisition by any corporation pursuant to a transaction 
            which complies with clauses (i), (ii) and (iii) of subsection (c) 
            of this Exhibit A; or  
 
     (b)    Individuals who, as of the date hereof, constitute the Board (the 
            "Incumbent Board") cease for any reason to constitute at least a 
            majority of the Board; provided, however, that any individual 
            becoming a director subsequent to the date hereof whose election, 
            or nomination for election by the Company's shareholders, was 
            approved by a vote of at least a majority of the directors then 
            comprising the Incumbent Board shall be considered as though such 
            individual were a member of the Incumbent Board, but excluding, 
            for this purpose, any such individual whose initial assumption of 
            office occurs as a result of an actual or threatened election 
            contest with respect to the election or removal of directors or 
            other actual or threatened solicitation of proxies or consents by 
            or on behalf of a Person other than the Board; or 
 
     (c)    Consummation of a reorganization, merger or consolidation or sale 
            or other disposition of all or substantially all of the assets of 
            the Company (a "Business Combination"), in each case, unless, 
            following such Business Combination, (i) all or substantially all 
            of the individuals and entities who were the beneficial owners, 
            respectively, of the Outstanding Company Common Stock and 
            Outstanding Company Voting Securities immediately prior to such 
            Business Combination beneficially own, directly or indirectly, 
            more than 50% of, respectively, the then outstanding shares of 
            common stock and the combined voting power of the then outstanding 
            voting securities entitled to vote generally in the election of 
            directors, as the case may be, of the corporation resulting from 
            such Business Combination (including, without limitation, a 
            corporation which as a result of such transaction owns the Company 
            or all or substantially all of the Company's assets either 
            directly or through one or more subsidiaries) in substantially the 
            same proportions as their ownership, immediately prior to such 
            Business Combination of the Outstanding Company Common Stock and 
            outstanding Company Voting Securities, as the case may be, (ii) no 
            Person (excluding any corporation resulting from such Business 
            Combination or any employee benefit plan (or related trust) of the 
            Company or such corporation resulting from such Business 
            Combination) beneficially owns, directly or indirectly, 30% or 
            more of, respectively, the then outstanding shares of common stock 
            of the corporation resulting from such Business Combination or the 
            combined voting power of the then outstanding voting securities of 
            such corporation except to the extent that such ownership existed 
            prior to the Business Combination and (iii) at least a majority of 
            the members of the board of directors of the corporation resulting 
            from such Business Combination were members of the Incumbent Board 
            at the time of the execution of the initial agreement, or of the 
            action of the Board, providing for such Business Combination; or 
 
     (d)    Approval by the shareholders of the Company of a complete 
            liquidation or dissolution of the Company.