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                                                                Exhibit 10.6.1

                                 AMENDMENT NO. 1
                                       TO
               NORTHEAST GENERATION COMPANY - NORTHEAST GENERATION
                                SERVICES COMPANY

                       MANAGEMENT AND OPERATION AGREEMENT

THIS AMENDMENT NO. 1 ("Amendment") to the MANAGEMENT AND OPERATION AGREEMENT
("Agreement") is made and entered into as of the 1st day of March, 2000, by and
between NORTHEAST GENERATION COMPANY, a Connecticut corporation with its
principal place of business in Berlin, Connecticut ("NGC"), and NORTHEAST
GENERATION SERVICES COMPANY, a Connecticut corporation with its principal place
of business in Rocky Hill, Connecticut ("NGS"). NGC and NGS shall be referred to
individually as the "Party" and collectively as the "Parties".

         WHEREAS, NGC and NGS entered into the Agreement as of February 1, 2000;

         WHEREAS, the United States Securities and Exchange Commission ("SEC")
has reserved jurisdiction under the Public Utility Holding Company Act of 1935,
as amended ("Act"), over the pricing provisions of the Agreement because such
pricing provisions are not fully cost-based; and,

         WHEREAS, the Parties agree that until and unless the SEC authorizes the
pricing provisions in the Agreement that do not comply with the cost provisions
under the Act, in accordance with the intent of Section 2.2 of the Agreement,
they will continue with the Agreement amended to be in accordance with the
cost-based provisions of the Act, as set forth more fully below.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein , it is agreed as follows:

         1.       Effective on the date of execution of this Amendment, Sections
                  4.1 to 4.3 of the Agreement and Exhibit 6 to Agreement shall
                  be suspended and replaced by the following:

                  "4.1A INTERIM PAYMENT PROVISIONS. Until such time as the SEC
                  approves or authorizes the pricing provisions contained in
                  Sections 4.1 to 4.3 of the Agreement and Exhibit 6 to the
                  Agreement, NGC shall pay NGS for the Services NGS provides
                  under Section 3 of this Agreement as described in this
                  paragraph. NGC shall pay NGS's actual total costs of providing
                  such services, including applicable overheads and indirect
                  costs, and reasonable compensation for necessary capital as
                  permitted by Rule 91 of the SEC under the Act as determined

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                  in accordance with Northeast Utilities System accounting and
                  cost allocation procedures, and with the methodologies used in
                  service agreements between Northeast Utilities Service Company
                  and various Northeast Utilities subsidiaries as approved by
                  the SEC."

         2.       RESTORATION OF INITIAL PRICING PROVISIONS. Upon SEC approval
                  or authorization for the pricing provisions contained in
                  Sections 4.1 to 4.3 of the Agreement and Exhibit 6 to the
                  Agreement, such provisions shall be immediately reinstated for
                  the period from and after the date of SEC approval or
                  authorization and the provisions of Section 1 of this
                  Agreement shall no longer be in force and effect.

         3.       EFFECT OF AMENDMENT ON AGREEMENT. The Agreement, as
                  specifically amended by this Amendment, is and shall continue
                  to be in full force and effect and is hereby in all respects
                  ratified and confirmed. The execution, delivery and
                  effectiveness of this Amendment shall not, except as expressly
                  provided herein, operate as a waiver of any right, power or
                  remedy of any party thereunder, nor constitute a waiver of any
                  provision of the Agreement.

         IN WITNESS WHEREOF THE PARTIES HAVE EXECUTED THIS AMENDMENT AS OF THE
DAY AND YEAR FIRST ABOVE WRITTEN.

NORTHEAST GENERATION COMPANY

BY: /s/ David R. McHale
   -------------------------------------
NAME:  David R. McHale
TITLE: Vice President and Treasurer

NORTHEAST GENERATION SERVICES COMPANY

BY: /s/ William J. Nadeau
   -------------------------------------
NAME:  William J. Nadeau
TITLE: Vice President and
       Chief Operating Officer

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                                                                  Exhibit 10.7

                       NORTHEAST UTILITIES SERVICE COMPANY
                                SERVICE CONTRACT

         AGREEMENT made and entered into as of the 4th day of January, 1999, by
and between NORTHEAST UTILITIES SERVICE COMPANY (hereinafter referred to as
Service Company) and NORTHEAST GENERATION COMPANY (hereinafter referred to as
Associate Company).

         WHEREAS, by order in File No. 37-65, the Securities and Exchange
Commission (hereinafter referred to as SEC) approved and authorized, under the
Public Utility Holding Company Act of 1935 (hereinafter referred to as the Act),
the organization and conduct of business of Service Company in accordance
herewith, as a wholly owned subsidiary service company of Northeast Utilities
(hereinafter referred to as Northeast); and

         WHEREAS, Service Company is willing to render services as provided
herein to Northeast and its associated subsidiaries (hereinafter collectively
referred to as the System) at cost, determined in accordance with applicable
rules and regulations under the Act; and

         WHEREAS, economies, increased efficiencies and other benefits will
result to the System from the performance by Service Company of services as
herein provided:

         NOW, THEREFORE, in consideration of the premises and of the mutual
agreements herein, it is agreed as follows:

                    SECTION 1. AGREEMENT TO FURNISH SERVICES.

         Service Company agrees to furnish to Associate Company and other System
companies, upon the terms and conditions herein provided, the services
hereinafter referred to in Section 2 hereof at such times and for such periods
as may be required, and Service Company will, as and to the extent required to
provide such services to the System, keep itself and its personnel available and
competent to render such services to the System so long as it is authorized so
to do by federal and state regulatory agencies having jurisdiction.

         For the purpose of providing services as herein provided, Service
Company proposes to establish various departments, one or more of which will
participate in providing particular services hereinafter described. Service
Company reserves to itself the privilege, without amendment hereof or express
prior agreement by Associate Company or other System companies, from time to
time to establish new departments, to subdivide or otherwise reorganize any of
the departments established by it, and to reallocate services among various
departments.

         Service Company will provide for Associate Company and other System
companies as required such other services not referred to in Section 2 hereof as
Service Company may conclude it may furnish with economies and increased
efficiencies to the System or such other services as Associate Company or other
System companies may require and Service Company is competent to perform.

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         Services will also be furnished to other System companies under
agreements similar in all respects hereto and may also be furnished, in Service
Company's discretion, to others, provided that by so doing the cost of services
to Associate Company or other System companies will not be increased.

         In supplying services hereunder, Service Company may arrange for
services of such executives, financial advisers, accountants, attorneys,
technical advisers, engineers and other persons as are required for or pertinent
to the rendition of such services.

                      SECTION 2. SERVICES TO BE PERFORMED.

         Subject to the provisions of Section 1 hereof, Service Company will
provide to Associate Company and other System companies the following services:

(A)      GENERAL SYSTEM MANAGEMENT: Executive, administrative, managerial,
         coordinating and advisory services, particularly with respect to the
         formulation and effectuation of policies and programs affecting or
         relating to the System as a whole, including financial, accounting, and
         economic policies and programs, power supply, public and employee
         relations, regulation, contractual arrangements, administrative and
         other proceedings, industry-wide activities and like matters.

(B)      OTHER FUNCTIONS AND ACTIVITIES: Studying, planning, advise, assistance,
         guidance, supervision, direction, administration, maintenance,
         handling, performance and operation, as may be required, in connection
         with the following functions and activities:

         (i)      CORPORATE AND SECRETARIAL: Policies and practices relating to
                  the performance of corporate secretarial functions and
                  activities, including the preparation and maintenance of
                  official corporate records, reports, minutes and
                  correspondence in accordance with assigned responsibilities
                  and duties.

         (ii)     FINANCIAL PLANNING: Financial structures; financial programs
                  to raise funds required or to effect savings through
                  refinancing; relations with commercial banks and negotiation
                  of short-term borrowings; relationships with investment
                  bankers, analysts, analyst societies, securities holders,
                  stock holders, stock exchanges and indenture trustees,
                  transfer agents and registrars; general treasury, banking and
                  financial matters.

         (iii)    ACCOUNTING: General accounting, customer accounting and
                  related records; depreciation, accounting procedures and
                  practices to improve efficiency; internal auditing, relations
                  with independent auditors and appearances before and
                  requirements of regulatory bodies with respect to accounting
                  matters; and financial and operating reports and other
                  statistical matters and analyses thereof.

         (iv)     TAXES: Consolidated and other income tax returns and other
                  federal, state and municipal tax returns, and all matters
                  related thereto, including relations with the Internal Revenue
                  Service and other taxing authorities, the examination and

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                  processing of tax returns, assessments and claims, and
                  developments in federal, state and municipal taxes.

         (v)      INSURANCE: Insurance programs and matters, including pension
                  and other employee benefit plans and programs; and relations
                  with insurance brokers and agents.

         (vi)     BUDGETS: Operating, construction and cash budgets, and similar
                  studies or documents, including estimates and other
                  information required therefor or related thereto.

         (vii)    DATA PROCESSING: Computer and other data processing
                  activities.

         (viii)   BULK POWER SUPPLY: The bulk power supply system from sources
                  of supply through to bulk substations, to achieve reliable
                  service at minimum cost, including forecasts of electric
                  loads; power supply arrangements among System companies; power
                  supply relations with other utilities; forecasts of gas
                  requirements and the procurement of gas supplies; design,
                  engineering and scheduling of electric and gas production and
                  transmission facilities; the design, engineering and
                  scheduling of major and unusual distribution facilities; and
                  System electric load dispatching operations and related
                  matters.

         (ix)     ENGINEERING RESEARCH AND STANDARDIZATION: Engineering
                  activities in the fields of research, design, construction and
                  standardization; technical specifications and standard designs
                  for and procedures and methods of utilizing materials,
                  equipment and associated services; technical support and
                  engineering as required in all areas of the System's
                  operations.

         (x)      SYSTEM OPERATIONS: Electric and gas operations, including
                  production, transmission and distribution of electricity and
                  gas; the construction, operation and maintenance of electric
                  and gas facilities; and in general all electric and gas
                  construction, maintenance and operating activities.

         (xi)     OTHER ADMINISTRATIVE SERVICES: Management-union and all other
                  employee relation activities, including the definition of
                  major organizational responsibilities and the translation of
                  those responsibilities into effective organization structures;
                  employee welfare and other programs and problems; business
                  methods and procedures; and transportation activities and
                  matters.

         (xii)    PURCHASING AND STORES: The purchasing and handling of
                  materials and supplies, fuel and equipment, including such
                  activities as buying, traffic, expediting and stock control,
                  and scrap and salvage sales; major and long-term purchase
                  contracts pertaining to the foregoing; and contacts with
                  market conditions and principal suppliers.

         (xiii)   COMMERCIAL ACTIVITIES: Electric, gas and other sales; customer
                  service facilities; rate matters and rate structures; and area
                  development plans and activities.

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         (xiv)    MARKETING AND SALES ACTIVITIES: Marketing, sales and pricing
                  strategies and plans; market research and support activities;
                  technical services; new business and product development;
                  trade ally and strategic alliance services; and marketing and
                  sales training and support.

(C)      Officers and other employees of Service Company will, on request of
         Associate Company, serve, without charge other than as herein provided,
         as officers or representatives of such Company.

                SECTION 3. AGREEMENT TO TAKE AND PAY FOR SERVICES

         Associate Company agrees to take from Service Company such of the
services to be performed by Service Company as may be required and to pay to
Service Company the cost of such services determined as herein provided. It is
the intent of this Agreement that the payment for services rendered by the
Service Company to the System shall cover all the costs of its doing business
(less credits for services to others and any other miscellaneous income items),
including reasonable compensation for necessary capital as permitted by Rule 91
of the SEC under the Act. The methods and procedure for determining the cost of
services performed for Associate Company are set forth in Appendix A hereto.

         Bills will be rendered for each calendar month on or before the
twentieth day of the succeeding month and will be payable on presentation and
not later than the last day of that month. Monthly charges may be made in whole
or in part for particular expenses on an estimated basis, subject to adjustment,
so that all charges for services during a calendar year will be made on an
actual basis.

               SECTION 4. EFFECTIVE DATE; TERM; AND CANCELLATION.

         This Agreement shall become and be effective as of the date hereof and
it shall continue in effect, unless sooner terminated as herein provided, for a
period of one year. It may be renewed from time to time for similar one-year
periods by mutual agreement. This Agreement shall also be subject to termination
and shall terminate, without any action by either of the parties, to the extent
and from the time that performance may conflict with the Act or with any rule,
regulation or order of the SEC adopted before or after the making hereof.

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         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed, by their respective officers thereunto duly authorized, all as of
the day and year first above written.

                                           NORTHEAST UTILITIES SERVICE COMPANY

                                           By:      /s/ Michael G. Morris
                                                    Michael G. Morris
                                                    Chairman, President and
                                                      and Executive Officer

Attest:

/s/ O. Kay Comendul
Assistant Secretary

                                           NORTHEAST GENERATION COMPANY

                                           By:      /s/ B. D. Kenyon
                                                    Bruce D. Kenyon
                                                    President
Attest:

/s/ O. Kay Comendul
Assistant Secretary

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                                   APPENDIX A

                      DESCRIPTION OF METHODS AND PROCEDURE
                         FOR ALLOCATING COST OF SERVICES

JOB OR WORK ORDERS FOR SERVICE

         There shall be job or work orders covering services to be performed for
Associate Company or other System companies. These orders may be either general
or specific. Services of a continuing nature, such as accounting, financial
planning and dispatching, will be covered by general job or work orders;
specific job or work orders will cover such things as issues of securities,
special studies or construction projects. General orders, as well as specific
orders, will specify the nature of the services to be performed thereunder in
sufficient detail that charges therefor may be determined as herein provided and
properly accounted for by the Associate Company under its prescribed Uniform
System of Accounts.

CHARGES FOR SERVICES

General

         Charges for services rendered to Associate Company and other System
companies will be made on the bases of benefits conferred and of actual cost
(including reasonable compensation for necessary capital as permitted by Rule 91
of the SEC under the Act), fairly and equitably allocated.

Specific Services

         Charges for specific services performed will be made to the appropriate
specific job or work order number assigned to accumulate the charges applicable
to the particular activity. These charges will include both direct and indirect
costs involved in providing the specific services.

General Services

         Charges for general services performed will be made to the appropriate
general job or work order number assigned to accumulate the charges applicable
to the particular activity. These charges will include both direct and indirect
costs involved in providing the general services.

NATURE OF CHARGES AND METHOD OF ALLOCATION

Direct Charges

         Direct charges consist of those costs which can practicably be recorded
separately and identified not only by job or work order number and department
but also as to source, such as time reports for each employee, vehicle reports,
invoices and other source documents. Time reports will be maintained for each
employee, including officers, in such detail as may be appropriate for such
employee and the nature of the services performed. Employees (other than
stenographic, secretarial,

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                                                                      Appendix A
                                                                          Page 2

clerical, and other workers engaged in rendering support services) will record
on their time reports hours chargeable to the appropriate job or work order
numbers and the nature of the work performed.

         Northeast will be charged with 25% of the costs chargeable to job or
work orders for general services not of an operating or functional nature
related primarily to the System subsidiary companies but primarily of benefit to
and performed for Northeast and the System as a whole. The balance of the
charges to such job or work orders will be allocated to among System subsidiary
companies as provided hereafter under "Charges to System Companies - General
Services."

Indirect Charges or Overhead Expenses

         Indirect charges or overhead expenses consist of all costs of the
Service Company, other than direct charges described above. These charges may be
classified into the following two general categories:

1.       GENERAL SERVICE COMPANY OVERHEADS - These charges include costs which
         cannot be identified as applicable to either a particular job or work
         order number or department and which must be allocated to the various
         Service Company departments on a fair and equitable basis. The
         following items are illustrative, and not all-inclusive, of the types
         of costs which may be so-allocated to the extent above provided: rents;
         office supplies and expenses; depreciation; building operation and
         maintenance; insurance; reasonable compensation for necessary capital;
         general services, such as stenographic, files, mail, etc., including
         salaries, employee benefits, and expenses of related employees; and
         other general overheads.

         These overhead costs will be allocated to each department on the basis
         of functional relationship, such as number of personnel, space
         occupied, use, etc.

2.       DEPARTMENT OVERHEADS - These charges include costs which can be
         identified as applicable to a particular department but which cannot be
         directly associated with a particular job or work order number. These
         costs will consist of the following:

         (a)      Wages and salaries of stenographic, secretarial, clerical and
                  other workers in the department engaged in rendering support
                  services.

         (b)      Lost or nonproductive time for vacations, personal time off,
                  sickness, holidays, etc., of all employees in department.

         (c)      Payroll-related Federal and State taxes and group benefit
                  plans for pension, life insurance, hospitalization and
                  medical, etc., of all employees in department.

         (d)      Miscellaneous supplies and expense.

         (e)      General Service Company overheads allocated to the particular
                  department as set forth in item 1 above.

                  The indirect charges of a particular department, as outlined
         in this item 2, will be distributed to the active specific or general
         job or work orders for which work is being

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                                                                      Appendix A
                                                                          Page 3

         performed by that department on the same proportionate basis as the
         actual direct payroll charges of that department.

CHARGES TO OTHER THAN SYSTEM COMPANIES

         Services performed for other than System companies will be billed and
paid for by them on an appropriate basis. All amounts so billed will be credited
to the appropriate job or work orders before any charges are made therefrom to
System companies.

CHARGES TO SYSTEM COMPANIES

Specific Services

         Charges for specific services recorded in the appropriate job or work
order numbers including overhead items, will be billed to the company or
companies for whom the services are performed.

General Services

         Charges for general services recorded in the appropriate job or work
order numbers, including overhead items, will be allocated among System
subsidiary companies on one of the following bases determined on the basis of
functional relationship to be the most fair and equitable:

1.       REVENUES - The relation of each company's gross operating revenues
         (electric, gas or total, as may be appropriate) to the sum of the
         operating revenues of all System companies (electric, gas or total, as
         may be appropriate) for the preceding calendar year.

2.       ELECTRIC PEAK LOAD - The relation of each company's annual electric
         peak load to the combined electric peak load of all System companies
         for the preceding calendar year.

3.       PEAK DAY SENDOUT - The relation of each company's gas peak day sendout
         to the combined gas peak day sendout of all System companies for the
         preceding calendar year.

4.       CUSTOMERS BILLED - The relation of each company's total customers
         billed to the combined total customers billed of all System companies
         for the preceding calendar year.

5.       OTHER - Such other basis or bases as experience may show will provide,
         on a functional relationship, a more fair and equitable allocation of
         particular charges than any of the foregoing.

DEPARTMENT COST CONTROLS

         Annual operating budgets, on a departmental basis, will be used and
costs will be controlled independently for each department so as to maintain a
periodic check on the balances, if any, over or underbilled to insure that
services rendered are being billed at cost. Each department will be charged with
all of its expenses, including overhead items allocated to it, and will be
credited with amounts billed from the department for services rendered. The
accounts of each department will be

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                                                                      Appendix A
                                                                          Page 4

maintained so as to be substantially in balance at all times. Accordingly,
semiannual reviews will be made of balances to determine to what extent the
billings should be adjusted to reflect actual cost.

BILLING

         Bills will be provided Associate Company in sufficient detail so as to
identify the services rendered and permit proper accounting distribution of the
charges under the Associate Company's prescribed Uniform System of Accounts.
Detail on the bill will include: (1) Department; (2) Function or type of
service; (3) Nature of charges, whether direct or indirect (overhead); and (4)
Source of charges, if direct.

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