NATIONAL GRID GROUP P L C
U-1/A, 1999-04-30
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             As filed with the Securities and Exchange Commission on
                                 April 30, 1999

                                File No. 70-9473

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


                      PRE-EFFECTIVE AMENDMENT NO. 1 TO THE

                             APPLICATION-DECLARATION

                                      UNDER

                 THE PUBLIC UTILITY HOLDING COMPANY ACT OF 1935


                           The National Grid Group plc
                               National Grid House
                                Kirby Corner Road
                                Coventry CV4 8JY
                                 United Kingdom

                           New England Electric System
                                25 Research Drive
                        Westborough, Massachusetts 01582


                    (Name of companies filing this statement
                  and addresses of principal executive offices)

                           The National Grid Group plc
                               National Grid House
                                Kirby Corner Road
                                Coventry CV4 8JY
                                 United Kingdom

                 (Name of top registered holding company parent)




<PAGE>




Jonathan M. G. Carlton                    Douglas W. Hawes
The National Grid Group plc               Joanne C. Rutkowski
National Grid House                       Sheri E. Bloomberg
Kirby Corner Road                         LeBoeuf, Lamb, Greene & MacRae, L.L.P.
Coventry CV4 8JY                          New York, NY  10019
United Kingdom                            Telephone:  212-424-8000
Telephone:  011-44-1203-423-006           Facsimile:   212-424-8500
Facsimile:   011-44-1203-423-026

National Grid (USA) Inc.
10th Floor
Oliver Building
2 Oliver Street
Boston, MA  02109

Michael E. Jesanis                        Clifford M. Naeve
Kirk L. Ramsauer                          Judith A. Center
New England Electric System               Skadden, Arps, Slate, Meagher
25 Research Drive                              & Flom L.L.P.
Westborough, Massachusetts  01582         1440 New York Avenue, N.W.
                                          Washington, D.C.  20005


                   (Names and addresses of agents for service)









<PAGE>



     This    Pre-Effective    Amendment    No.   1    amends    the   Form   U-1
Application/Declaration  in this  proceeding  which  originally  filed  with the
Securities and Exchange Commission on March 26, 1999 as follows:

A. To the extent that the  Commission  approves the  acquisition  of EUA NEES in
accordance with NEES' separate application  relating thereto,  National Grid and
the Intermediate  Companies hereby request  authorization to acquire an indirect
interest in EUA's utility subsidiaries and certain EUA's non-utility operations.

B. Item 1.B is amended and restated as follows:

     1. National Grid

     National  Grid  is  a  holding   company  formed  in  1989.  Its  principal
subsidiary, The National Grid Company plc, a public limited company formed under
the laws of England and Wales  ("National Grid Company") was created as a result
of the privatization and restructuring of the British electric system.  National
Grid's  ordinary  shares are listed on the London Stock Exchange (the "LSE") and
National Grid has an unsponsored  American  Depositary  Receipt  ("ADR") program
pursuant to which a  relatively  small  amount of its shares trade in the United
States as ADRs.  National Grid is preparing the  necessary  documentation  which
will enable it to become listed on a public  exchange in North America through a
full ADR program sometime prior to the closing of this transaction.

     National Grid currently has one direct  subsidiary,  National Grid Holdings
plc. ("National Grid Holdings") National Grid Holdings was formed under the laws
of England and Wales in 1999 to serve as a subholding company over National Grid
Company and the other  subsidiaries  of  National  Grid not in the NEES chain of
ownership. Prior to consummation of the Merger, National Grid Holdings will file
its  notification of a foreign  utility company  ("FUCO") status to qualify as a
FUCO  within the  meaning of Section 33 of the Act.  The  parities  expect  that
National Grid Holdings will retain this status  following the Merger.  A revised
chart showing National Grid and all of its subsidiaries  following the formation
of National Grid Holdings is attached hereto as Exhibit E-3.

                                       -1-

<PAGE>



     The  following  entities  are the  direct  subsidiaries  of  National  Grid
Holdings and the description of their  operations  provides a description of the
principal lines of business, as well as some administrative  operations,  within
the National Grid holding company system.

     a. National Grid Company -- As part of the U.K. government's  privatization
efforts, the Central Electricity  Generating Board, which owned and operated the
vast majority of electric generation and transmission  facilities in England and
Wales, was split into three competing generation  companies,  and an independent
transmission company,  National Grid Company. As a result, National Grid Company
is the only  transmission  company in England and Wales and now owns 4,300 miles
of  overhead  transmission  lines and 400 miles of  underground  cables,  all in
England and Wales,  as well as  interconnections  with Scotland and France.  The
principal  functions of National Grid Company in the  competitive  British power
supply   market  are  to  provide   transmission   services  on  a   for-profit,
non-discriminatory  basis,  and to maintain and make all needed  improvements to
optimize  access  to  that  system;  to  procure   ancillary   services  on  the
transmission  system;  to match demand and supply; to manage the daily system of
half-hourly  bids for competing  generators;  and to calculate market prices and
make the payments due from each day's energy  trading.  National Grid Company is
subject to regulatory  controls  overseen by the Director General of Electricity
Supply  with  regard to the prices it may charge for  transmission  services  in
England and Wales.  The current  transmission  price  control  arrangements  for
National Grid Company are expected to remain in force until March 31, 2001.

     b. National Grid Insurance  Limited,  is an insurance  subsidiary formed in
connection   with  the   self-insured   retention  of  National  Grid  Company's
transmission  assets.  National Grid owns all of the outstanding ordinary shares
of National Grid  Insurance  Limited,  with  preference  shares held by Barclays
Bank.

     c. National Grid International  Limited, is an intermediate holding company
for certain of the overseas operations of National Grid.

     d. The National Grid Group Quest  Trustees  Limited is the trustee  company
for National Grid's qualifying employee share ownership trust.

                                       -2-

<PAGE>



     e. NGG Telecoms Holdings Limited  indirectly holds National Grid's interest
(currently at 48.3%) in Energis plc ("Energis"),  a  telecommunications  company
focusing on the business marketplace in the United Kingdom.

     f. Natgrid Finance Holdings Limited is an intermediate  holding company for
entities that provide financial management services to National Grid.

     2. NEES

     NEES is organized and exists as a voluntary  association  created under the
laws of the Commonwealth of  Massachusetts on January 2, 1926.  NEES's principal
executive  office is located at 25 Research  Drive,  Westborough,  Massachusetts
01582.

     NEES is a holding company  registered  under Section 5 of the 1935 Act, and
it and its subsidiaries  are subject to the broad  regulatory  provisions of the
Act.  Various NEES  subsidiaries  are also subject to regulation by (i) the FERC
under  the  Federal  Power Act  ("FPA")  with  respect  to  wholesale  sales and
transmission  of electric  power,  construction  and operation of  hydroelectric
project,  and accounting and other  matters,  and (ii) various state  regulatory
commissions,  as  discussed  below.  In  addition,  the  activities  of  nuclear
facilities  in which NEES and its  subsidiaries  have  ownership  interests  are
regulated by the NRC.

     The common  stock,  par value of $1.00 per share,  of NEES is listed on the
New York Stock Exchange and the Boston Stock Exchange.  As of December 31, 1998,
there were 59,171,015 shares of NEES common stock outstanding. On a consolidated
basis at the end of 1998,  NEES had total assets of $5.07  billion,  net utility
assets of $2.5  billion,  total  operating  revenues of $2.42  billion,  utility
operating revenues of $2.24 billion, and net income of $190 million.

     NEES owns all of the voting  securities of the following four  distribution
subsidiaries,  Mass. Electric,  Narragansett,  Granite State and Nantucket,  and
99.97 percent of the outstanding voting securities of its principal transmission
subsidiary,  NEP.  The NEES system  covers more than 4,500  square  miles with a
population  of  approximately  3,000,000.  At December  31,  1998,  NEES and its
subsidiaries had approximately 3,540 employees.

                                       -3-

<PAGE>



     a. Mass.  Electric is a public utility  company  engaged in the delivery of
electric  energy  to  approximately  980,000  customers  in an  area  comprising
approximately  43  percent  of  Massachusetts.  Mass.  Electric's  service  area
consists of 146 cities and towns,  including the highly  diversified  commercial
and  industrial  cities of Worcester,  Lowell and Quincy.  The population of the
service area is approximately  2,160,000,  or 36 percent of the total population
of the state. During 1998, 39 percent of Mass. Electric's revenues from the sale
of  electricity  was  derived  from  residential  customers,   39  percent  from
commercial  customers,  21 percent from industrial  customers and 1 percent from
others. In 1998, the utility's 20 largest customers  accounted for approximately
7 percent of its electric revenues. At the end of 1998, Mass. Electric had total
assets of $1.45 billion,  operating  revenues of $1.49 billion and net income of
$50.4 million. Mass. Electric is subject to regulation by the FERC and the MDTE.

     b.  Narragansett  is a public  utility  company  engaged in the delivery of
electric energy to approximately  335,000 customers in Rhode Island. Its service
area covers about 839 square miles, or 80 percent of the area of the state,  and
encompasses 27 cities and towns, including Providence, East Providence, Cranston
and Warwick.  The population of the service area is approximately  725,000 or 72
percent  of the total  population  of the  state.  During  1998,  44  percent of
Narragansett's   revenues  from  the  sale  of  electricity   was  derived  from
residential  customers,  40 percent from commercial  customers,  14 percent from
industrial  customers,  and 2  percent  from  others.  In 1998,  the 20  largest
customers of Narragansett accounted for approximately 10 percent of its electric
revenues.  At the end of 1998,  Narragansett had total assets of $644.1 million,
operating revenues of $475 million and net income of $32.3 million. Narragansett
is subject to regulation by the FERC, the RIPUC and the Rhode Island Division of
Public Utilities and Carriers ("RIDIV").

     c. Granite  State is a public  utility  company  engaged in the delivery of
electric  energy  to   approximately   37,000  customers  in  21  New  Hampshire
communities.   The  Granite  State   service   territory  has  a  population  of
approximately  73,000 and includes the Salem area of southern New  Hampshire and
several  communities  along the  Connecticut  River.  During 1998, 49 percent of
Granite State's revenues from the sale of electricity was derived

                                       -4-

<PAGE>



from commercial  customers,  36 percent from residential  customers,  14 percent
from industrial  customers,  and 1 percent from others.  In 1998, the 10 largest
customers  of  Granite  State  accounted  for  approximately  18  percent of its
electric  revenue.  At the end of 1998,  Granite State had total assets of $61.8
million,  operating  revenues of $65.7 million,  and net income of $3.2 million.
Granite State is subject to regulation by the FERC and the NHPUC.

     d. Nantucket  provides  electric  utility service to  approximately  10,000
customers  on  Nantucket  Island  in   Massachusetts.   Nantucket's   year-round
population is approximately  6,000, with a summer peak of approximately  40,000.
Nantucket's  service area covers the entire  island.  During 1998, 62 percent of
Nantucket's  revenues from the sale of electricity was derived from  residential
customers,  37 percent from commercial  customers and 1 percent from others.  At
the end of 1998,  Nantucket had total assets of $44 million,  operating revenues
of $15.1 million, and net income of $567,000. Nantucket is subject to regulation
by the FERC and the MDTE.

     e. NEP is  principally  engaged in  purchasing,  transmitting  and  selling
electric  energy at  wholesale.  In 1998,  98 percent  of NEP's  all-requirement
revenue  from the sale of  electricity  was  derived  from  sales for  resale to
affiliated  companies and 2 percent from sales for resale to municipal and other
utilities.  NEP has  recently  completed  the sale of  substantially  all of its
non-nuclear generating business and currently is attempting to sell its minority
interests  in  three  operating  nuclear  power  plants  and  one  fossil-fueled
generating  station in Maine.1 At the end of 1998, NEP had total assets of $2.41
billion,  operating  revenues of $1.2 billion and net income of $122.9  million.
NEP is subject,  for certain  purposes,  to regulation by the SEC, the FERC, the
NRC, the RIDIV,  the MDTE, the NHPUC,  the VPSB, the CDPUC, and the Maine Public
Utilities Commission.

- --------

     1 NEP is also a holding company because it owns more than 10 percent of the
outstanding voting securities of Vermont Yankee Nuclear Power  Corporation,  the
licensed operator of the Vermont Yankee nuclear facility.  NEP also has minority
interests in Yankee Atomic Electric  Company,  Maine Yankee Atomic Power Company
and  Connecticut  Yankee  Atomic Power  Company,  all of which have  permanently
ceased operations. NEP is an exempt holding company under the Act. Yankee Atomic
Electric Company, Holding Co. Act Release No. 13048 (Nov. 25, 1955); Connecticut
Yankee Atomic Power Company, Holding Co. Act Release No. 14768 (Nov. 15, 1963).

                                       -5-

<PAGE>



     f. New England Electric Transmission ("NEET"), a wholly owned subsidiary of
NEES, owns and operates a direct current/alternating  current converter terminal
facility for the first phase of the Hydro-Quebec and New England interconnection
(the   "Interconnection")   and  six  miles  of  high  voltage   direct  current
transmission line in New Hampshire.

     g. New England Hydro-Transmission Corporation ("N.H. Hydro"), in which NEES
holds  53.97% of the common  stock,  operates 121 miles of  high-voltage  direct
current  transmission  line  in  New  Hampshire  for  the  second  phase  of the
Interconnection, extending to the Massachusetts border. At the end of 1998, N.H.
Hydro had total assets of $131 million, operating revenues of $31.7 million, and
net income of $4.8 million.

     h. New England Hydro-Transmission  Electric Company ("Mass. Hydro"), 53.97%
of  the   voting   stock  of  which   is  held  by  NEES,   operates   a  direct
current/alternating current terminal and related facilities for the second phase
of the Interconnection and 12 miles of high-voltage direct current  transmission
line in Massachusetts.  At the end of 1998, Mass. Hydro had total assets of $160
million, operating revenues of $37 million, and net income of $7.8 million.

          o    New England Hydro Finance  Company,  Inc. ("NE Hydro Finance") is
               owned in equal shares by Mass.  Hydro and N.H. Hydro and provides
               the debt  financing  required  by the owners to fund the  capital
               costs of their participation in the Interconnection.

     i. NEES  Communication,  Inc.  ("NEESCom") is an exempt  telecommunications
company  that  provides  telecommunications  and  information-related  goods and
services.  NEESCom holds a license issued by and is subject to regulation by the
Federal Communications  Commission.  NEESCom plans to focus on the fiber optics,
cable and infrastructure sectors of the telecommunications  industry. At the end
of 1998,  NEESCom  had  total  assets  of $12.6  million  and a net loss of $1.2
million.

     j.  NEES  Global,  Inc.  ("NEES  Global")  is  a  wholly-owned   nonutility
subsidiary of NEES that  provides  consulting  services and product  licenses to
unaffiliated

                                       -6-

<PAGE>



utilities in the areas of electric  utility  restructuring  and customer choice.
NEES Global also leases water heaters through its subsidiary,  New England Water
Heater Co. At the end of 1998, NEES Global had total assets of $23.2 million and
a net loss of $1.1 million for the year.

     k. NEES Energy, Inc. ("NEES Energy") is a wholly-owned marketing subsidiary
of NEES.

          o    AllEnergy Marketing Company, L.L.C. ("AllEnergy") is an indirect,
               wholly-owned  subsidiary of NEES.  NEES Energy owns 99 percent of
               the  voting  securities  of  AllEnergy;   NEES  Global  owns  the
               remaining  1  percent.  AllEnergy  markets  energy  products  and
               provides a wide range of energy-related  services including,  but
               not limited to, marketing, brokering and sales of energy, audits,
               fuel  supply,  repair,  maintenance,   construction,   operation,
               design,   engineering   and   consulting   to  customers  in  the
               competitive power markets of New England and New York.

     l.  Granite  State  Energy,   Inc.  ("Granite  State")  is  a  wholly-owned
nonutility  marketing  subsidiary  of NEES.  Granite  State  provides a range of
energy and energy-related services, including: sales of electric energy, audits,
power  quality,  fuel  supply,  repair,   maintenance,   construction,   design,
engineering and consulting.  At the end of 1998,  Granite State had total assets
of $304,000, operating revenues of $718,000 and a net loss of $22,000.

     m. New England  Water  Heating  Company is engaged in the rental,  service,
sale and installation of water heaters.

     n. New  England  Power  Service  Company  ("Service  Company"),  provides a
variety of administrative  and consulting  services for the NEES system pursuant
to a  service  agreement  approved  by the  Commission  in  accordance  with the
requirements of Rule 90. At the end of 1998, Service Company had total assets of
$123.1 million and net income of $1.8 million.

                                       -7-

<PAGE>



     Narragansett  and NEP (and  AllEnergy) are members of the New England Power
Pool  ("NEPOOL").  Mass.  Electric,  Nantucket and Granite State  participate in
NEPOOL  through NEP. The FERC  recently has approved a  restructuring  of NEPOOL
involving (i) the formation of an Independent  System Operator that will control
the  transmission  facilities  owned by the NEPOOL  public  utility  members and
administer the NEPOOL open-access  transmission tariff and (ii) the operation of
a power  exchange that will embody a  competitive  wholesale  power market.  New
England Power Pool, 85 FERC P. 61,379 (Dec. 17, 1998).

     A chart of the organization of NEES is attached hereto as Exhibit E-4.

C.   Item 2 is amended and restated as follows:


                                                               Millions
Accountants' fees                                              $   6.9
Legal fees and expenses                                            5.0
Shareholder communication and proxy solicitation expenses          1.4
Investment bankers' fees and expenses                             19.6
Consulting fees                                                     .8
Miscellaneous                                                      2.0
                                                               -------
         Total                                                 $  35.7


     The total  fees,  commissions  and  expenses  expected  to be  incurred  in
connection with the Merger are estimated to be approximately $35.7 million.

D.   Item 3.A.1.c is amended and restated as follows

     a. Section 10(b)(2) -Reasonableness of Fees

     National  Grid believes  that the overall  fees,  commissions  and expenses
incurred and to be incurred in  connection  with the Merger are  reasonable  and
fair in light  of the  size  and  complexity  of the  Merger  relative  to other
transactions and the anticipated benefits of the

                                       -8-

<PAGE>



Merger to the public,  investors and consumers;  that they are  consistent  with
recent precedent; and that they meet the standards of Section 10(b)(2).

     As set forth in Item 2 of this  Application/Declaration,  National Grid and
NEES together expect to incur a combined total of approximately $35.7 million in
fees,  commissions  and  expenses in  connection  with the Merger.  By contrast,
American  Electric  Power  Company and Central and South West  Corporation  have
represented  that they expect to incur  total  transaction  fees and  regulatory
processing fees of approximately $53 million,  including financial advisory fees
of approximately $31 million, in connection with their proposed Merger.

     The Applicants  believe that the estimated fees and expenses in this matter
bear a fair  relation  to the  value of NEES and the  strategic  benefits  to be
achieved by the  Merger,  and further  that the fees and  expenses  are fair and
reasonable in light of the  complexity of the Merger.  See Northeast  Utilities,
Holding  Co. Act Release No.  25548 (June 3, 1992),  modified on other  grounds,
Holding Co. Act Release No. 25550 (June 4, 1992)  (noting that fees and expenses
must bear a fair  relation to the value of the  company to be  acquired  and the
benefits to be achieved in connection with the acquisition).  Based on the price
of NEES stock on December 11, 1998, the Merger would be valued at  approximately
$3.2 billion.  The total estimated fees and expenses of $35.7 million  represent
approximately  1.25% of the value of the  consideration  to be paid by  National
Grid Company,  and are consistent  with (and are in fact  generally  lower than)
percentages  previously  approved by the Commission.  See, e.g.,  Entergy Corp.,
Holding Co. Act Release No. 25952 (Dec. 17, 1993) (fees and expenses represented
approximately 1.7% of the value of the consideration paid to the shareholders of
Gulf States Utilities);  Northeast Utilities,  Holding Co. Act Release No. 25548
(June 3, 1992) (approximately 2% of the value of the assets to be acquired).

E. Item 3.A.2.a.i is amended and restated as follows:

     Section 11(b)(1) directs the Commission:

               To require . . . that each registered  holding company,  and each
          subsidiary company thereof, shall take such take such action as the

                                       -9-

<PAGE>



          Commission  shall  find  necessary  to  limit  the  operations  of the
          holding-  company  system of which such  company is a part to a single
          integrated  public-utility system, and to such other businesses as are
          reasonably incidental, or economically necessary or appropriate to the
          operations  of  such  integrated  public-utility  system.  . .  .  The
          Commission  may  permit  as  reasonably  incidental,  or  economically
          necessary or appropriate  to the operations of one or more  integrated
          public-utility  systems the  retention  of an interest in any business
          (other than the  business of a  public-utility  company as such) which
          the  Commission  shall find  necessary  or  appropriate  in the public
          interest or for the  protection  of  investors  or  consumers  and not
          detrimental to the proper functioning of such system or systems.

For purposes of the single system requirement,  the Merger would simply impose a
new holding company structure over a fully-integrated electric utility system.

     The question then becomes  whether the "other  businesses" of National Grid
are  retainable  under the standards of Section 11 and the statutory  amendments
thereto.  As previously  noted,  National Grid  Holdings,  National  Grid's only
direct  subsidiary,  will  claim an  exemption  as a FUCO  under the Act.  Thus,
National  Grid  Holdings  and  all of  its  subsidiaries  will  be  exempt  form
regulation, and are retainable,  under the Act in accordance with the provisions
of Section 33(a)(1) of the Act.

     Although not jurisdictional, the parties note that National Grid's indirect
subsidiaries would be retainable in their own right as well. Attached as Exhibit
2 is a  description  of each of these  subsidiaries  and an  explanation  of the
independent bases for retention for these entities.

F. Item 3.B.1 is amended to add the following paragraph to the end thereto:

     The Applicant also seeks  confirmation that National Grid's borrowing under
Credit Facility for purposes of financing the Merger are  permissible  under the
Act and may be repaid in accordance with the terms of the Credit Facility, which
is attached hereto as Exhibit

                                      -10-

<PAGE>



B-3.  Although National Grid will technically incur this indebtedness just prior
to its acquisition of NEES and consequent  registration as a holding company, as
previously  discussed,  the parties recognize that the Commission will take this
financing into account in approving the  transaction.  These  borrowings will be
made from sophisticated commercial lenders on terms negotiated at arms-length.

G. Item 4 is amended and restated as follows:

     Set forth below is a summary of the regulatory approvals that National Grid
and NEES expect to obtain in connection with the Merger.

     a. Antitrust

     The Merger is subject to the  requirements of the HSR Act and the rules and
regulations thereunder,  which provide that certain acquisition transactions may
not be consummated until certain information has been furnished to the Antitrust
Division of the Department of Justice (the "Antitrust Division") and the Federal
Trade  Commission  (the  "FTC")  and until  certain  waiting  periods  have been
terminated or have expired.  NEES and National Grid Group filed their  premerger
notifications  on  March  31,  1999 and on April  9,  1999  the  waiting  period
thereunder was  terminated.  If the Merger is not  consummated  within 12 months
after the  expiration  or earlier  termination  of the  initial  HSR Act waiting
period, NEES and National Grid Group would be required to submit new information
to the  Antitrust  Division and the FTC, and a new HSR Act waiting  period would
have to expire or be earlier terminated before the Merger could be consummated.

     b. Federal Power Act

     Section 203 of the Federal  Power Act (the "FPA")  provides  that no public
utility  may  sell  or  otherwise  dispose  of  its  facilities  subject  to the
jurisdiction of the FERC or, directly or indirectly,  merge or consolidate  such
facilities  with those of any other  person or acquire any security of any other
public  utility  without  first  having  obtained  authorization  from the FERC.
Because this transaction involves a change in ownership and control of NEES's

                                      -11-

<PAGE>



public  utility  subsidiaries,  the prior approval of the FERC under FPA Section
203 is required in order to consummate the Merger.

     Under  Section 203 of the FPA,  the FERC is directed to approve a Merger if
it finds such  Merger  "consistent  with the public  interest."  In  reviewing a
Merger,  the FERC  generally  evaluates:  (1) whether the Merger will  adversely
affect competition;  (2) whether the Merger will adversely affect rates; and (3)
whether  the  Merger  will  impair the  effectiveness  of  regulation.  NEES and
National Grid Group believe the proposed Merger satisfies these standards.

     NEES's public utility  subsidiaries  filed an application  with the FERC on
March 10, 1999  requesting that the FERC approve the Merger under Section 203 of
the EPA.  The FERC  issued a notice on March 10,  1999,  indicating  the comment
period relating to this application expires on May 10, 1999.

     c. Atomic Energy Act

     Since  NEP  holds  licenses  issued by the  Nuclear  Regulatory  Commission
("NRC") in connection with that subsidiary's  interests in various nuclear power
plants and also holds minority common stock interest in  corporations  that hold
such licenses,  the Merger (which would constitute an indirect transfer of NEP's
licenses to National Grid Group)  requires NRC approval  under the Atomic Energy
Act of 1954. The Atomic Energy Act effectively  prohibits  foreign  ownership or
control of a nuclear  license (as distinct  from the physical  plant).  National
Grid Group is a foreign entity within the meaning of the Atomic Energy Act. NEES
and National  Grid Group  believe they can satisfy NRC  concerns  about  foreign
ownership  and  control.  NEP's  minority  interests  in  the  common  stock  of
corporations  that hold  nuclear  licenses  does not give NEES control over such
facilities  or the  licensee  for the  facilities,  and  therefore  the indirect
acquisition  by National Grid Group of NEP's  interest will not be  inconsistent
with the Atomic Energy Act. In addition,  although NEP owns a minority  interest
in two nuclear  facilities and therefore has minority,  non-operating  ownership
licenses  with  respect  to  those  facilities,  NEP  has no  control  over  the
facilities  themselves,  and a recently  issued NRC review  procedure  regarding
foreign ownership or control provides that

                                      -12-

<PAGE>



foreign  ownership  of such  minority  non-operating  licenses  is  permissible,
provided that the licensee agrees to conditions that prevent foreign  domination
or  control  of the  facility.  NEES  and  National  Grid  Group  have  filed an
application  with the NRC agreeing to such conditions on March 15, 1999. The NRC
recently adopted a similar  framework to that proposed by NEES and National Grid
Group in its Order  Approving  Transfer  of License  for the Three  Mile  Island
Nuclear  Station,  Unit 1, from GPU  Nuclear,  Inc.,  et al., to Amergen  Energy
Company LLC and Approving Conforming Amendment,  issued April 12, 1999. NEES and
National  Grid  Group  have been  informed  that the NRC  intends  to review the
transfer  of all  licenses  in  which  NEP has an  interest,  including  through
minority positions in common stock,  within the context of the application filed
by the parties.

     d. Exon-Florio

     The  Committee on Foreign  Investment  in the United  States  ("CFIUS") may
review and  investigate the Merger under  Exon-Florio,  and the President of the
United  States or his designee is empowered to take certain  actions in relation
to Mergers,  acquisitions and takeovers by foreign persons which could result in
foreign control of persons  engaged in interstate  commerce in the United States
pursuant to  Exon-Florio.  In particular,  Exon-Florio  enables the President to
block or reverse any  acquisitions  by foreign  persons which threaten to impair
the  national  security  of  the  United  States.   Before  the  Merger  may  be
consummated,  any CFIUS review and investigation of the Merger under Exon-Florio
must  have  terminated,  and  the  President  must  not  have  taken  any of his
authorized actions under Exon-Florio.  The Exon-Florio application in connection
with the Merger was filed on March 30,  1999 and on April 29,  1999 the  parties
were informed by the Deparment of the Treasury that action under Exon-Florio had
concluded with respect to the Merger.

     e. State Regulatory Approval

     The Merger  does not require  the  approval  of the MDTE or the RIPUC.  The
merger  does  require  the  approval of the VPSB and the CDPUC and is subject to
review by the NHPUC.


                                      -13-

<PAGE>



     While  the MDTE  does  not have  jurisdiction  over  the  merger,  NEES and
National  Grid  made an  informational  filing  on March 8,  1999 with the MDTE,
describing the merger and the benefits of the merger to  ratepayers.  As part of
the  filing,  the  companies  advised  the MDTE that the SEC would be  seeking a
certification  from the MDTE,  the  RIPUC  and the NHPUC  that each of the state
commissions has the authority and resources to protect ratepayers in matter such
as rates, financings,  affiliate transactions and the financial integrity of the
operating utility within its state and additionally that the commission  intends
to continue to exercise its authority.

     On March 18, 1999, the companies made a similar  informational  filing with
the NHPUC and requested  certification from the NHPUC to the SEC that it has the
authority  and  resources  to  protect  ratepayers.  The  companies  also  filed
affidavits attesting to the fact that the transaction would not adversely affect
ratepayers  and that there would be no change in the NHPUC's  jurisdiction  over
Granite  State and NEP as a result of the merger.  On April 21, 1999,  the NHPUC
issued an order  finding  that the merger did not satisfy the  requirements  for
exemption from the NHPUC's formal review process. A procedural  schedule for the
NHPUC's review is expected to be established on May 4, 1999.

     While the RIPUC has indicated that no filing with it is required, a copy of
the   informational   filing  made  with  the  MDTE  was  given  to  the  RIPUC.
Additionally,  the companies  will be meeting with the RIPUC and staff to answer
any questions they may have and to request that a certification  to the SEC from
the RIPUC that it has the authority and resources to protect ratepayers.

     NEP has a small amount of  transmission  assets in Vermont and therefore is
deemed  to be a  Vermont  public  utility.  While  the  VPSB  has no  regulatory
jurisdiction over NEP's operations,  under Vermont law it does have authority to
approve the merger.  The  application for approval of the Merger by the VPSB was
filed on March 29, 1999.

     The CDPUC has jurisdiction  over the transaction  because of NEP's minority
ownership  interest in the Millstone III Nuclear Power Plant. On March 31, 1999,
the  parties 


                                      -14-

<PAGE>



filed a letter with the CDPUC seeking  confirmation  that CDPUC  approval is not
required for the Merger.

                                    * * * * *


Finally,  pursuant to Rule 24 under the Act, the  Applicants  represent that the
transactions proposed in this filing shall be carried out in accordance with the
terms   and   conditions   of,   and   for   the   purposes   stated   in,   the
declaration-application no later than December 31, 2004.

I. Item 6 is amended and restated as follows:

     A. Exhibits

         A-1   Memorandum and Articles of Association of The National Grid Group
               plc (previously filed).

         A-2   Agreement and Declaration of Trust of New England Electric System
               (filed as Exhibit 3 to the 1994 NEES Form 10-K (File No. 1-3446),
               and incorporated herein by reference).

         A-2.2 Proposed  amendment  to the NEES  Agreement  and  Declaration  of
               Trust (included in Exhibit C-1 hereto).

         B-1   Agreement  and Plan of Merger,  dated as of December 11, 1998, by
               and  among  NEES,  National  Grid  Group  and  NGG  Holdings  LLC
               (included in Exhibit C-1 hereto).

         B-2   NEES Standard Form of Service  Contract,  as amended  (previously
               filed).

         B-3   National Grid Group Credit Agreement.

         C-1   Proxy Statement of NEES for the  shareholders  meeting to be held
               in connection with the Merger (filed with the Commission on March
               26, 1999 and incorporated by reference herein).

         C-2   Circular of  National  Grid Group for the  extraordinary  general
               meeting of shareholders to be held in connection with the Merger

         D-1.1 Joint  Application  of New England Power  Company,  Massachusetts
               Electric Company, The Narragansett  Electric Company, New England
               Electric Transmission Corporation, New England Hydro-Transmission
               Corporation,  New  England  Hydro-Transmission  Electric  Company
               Inc.,  AllEnergy  Marketing Company,  L.L.C. and NGG Holdings LLC
               before the FERC (previously filed).

                                      -15-

<PAGE>



         D-1.2 Order of the FERC (to be filed by amendment).

         D-2.1 Application   of  New  England  Power  Company   before  the  NRC
               (previously filed).

         D-2.2 Order of the NRC (to be filed by amendment).

         D-3.1 Submission to the MDTE (previously filed).

         D-3.2 Response from the MDTE (to be filed by amendment).

         D-4.1 Omitted

         D-4.2 Omitted

         D-5.1 Submission to the NHPUC (previously filed).

         D-5.2 Order of the NHPUC

         D-5.3 Additional submission to the NHPUC (to be filed by amendment)

         D-5.4 Final response of the NHPUC (to be filed by amendment)

         D-6.1 Submission to the VPSB.

         D-6.2 Response from the VPSB (to be filed by amendment).

         D-7.1 Submission to the CDPUC.

         D-7.2 Order of the CDPUC (to be filed by amendment).

         E-1   Map of service territory of NEES (previously filed).

         E-2   NGG Corporate  Chart, as revised.  (filed in paper format on Form
               SE)

         E-3   NEES Corporate Chart (previously filed).

         F-1.1 Opinion  of  Counsel  -  National  Grid  Group.  (to be  filed by
               amendment)

         F-1.2 Opinion of Counsel - NEES. (to be filed by amendment)

         F-2   Past tense opinion of counsel (to be filed by amendment).

         G-1   Opinion of Merrill  Lynch,  Pierce,  Fenner & Smith  Incorporated
               (included in Exhibit C-1).

         H-1   Annual  Report of  National  Grid  Group  dated  March  31,  1998
               (previously filed).

         H-2   Annual  Report on Form 10-K of NEES for the year  ended  December
               31,  1998  (filed  with  the  Commission  on March  31,  1999 and
               incorporated by reference herein).

                                      -16-

<PAGE>



         H-3   Form U5S of NEES  for the year  ended  December  31,  1998 (to be
               filed by amendment).

         I-1   Proposed Form of Notice (previously filed).

         J-1   Description  of  Nonutility  Subsidiaries  of National  Grid,  as
               revised.

         J-2   Merger  Structure  and  Description  of  Intermediate   Companies
               (previously filed).

         J-3   "The  Financial  Strength  of the  National  Grid  Group  and the
               Proposed  Acquisitions  of NEES and EUA,"  Julian  Franks and the
               Brattle Group (March, 1999) (previously filed).

     B. Financial Statements

         FS-1  National Grid Group  Unaudited Pro Forma  Condensed  Consolidated
               Balance Sheet (to be filed by amendment).

         FS-2  National Grid Group  Unaudited Pro Forma  Condensed  Consolidated
               Statement of Income (to be filed by amendment).

         FS-3  Notes to Unaudited  Pro Forma  Condensed  Consolidated  Financial
               Statements (to be filed by amendment).

         FS-4  National Grid Group Consolidated Balance Sheet.

         FS-5  National Grid Group  Consolidated  Profit and Loss Account,  Cash
               Flow  Statement  and  Statement  of Total  Recognized  Gains  and
               Losses.

         FS-5.1 Notes to National Grid Group Consolidated Financial Statements.

         FS-6  NEES Consolidated Balance Sheet as of December 31, 1998 (included
               in Exhibit H-2).

         FS-7  NEES Consolidated Statement of Income for the twelve months ended
               December 31, 1998 (included in Exhibit H-2).

                                      -17-

<PAGE>


                                    SIGNATURE

     Pursuant to the  requirements  of the Public Utility Holding Company Act of
1935, the Applicants have duly caused this Pre-Effective  Amendment No. 1 to the
Application/Declaration  on Form  U-1 to be  signed  on their  behalf  of by the
undersigned thereunto duly authorized.



Date:  April 30, 1999
                                   THE NATIONAL GRID GROUP PLC


                                    /s/ Jonathan M.G. Carlton
                                   Jonathan M.G. Carlton
                                   Business Development Manager - Regulation

                                   NEW ENGLAND ELECTRIC SYSTEM


                                    /s/ Kirk L. Ramsauer
                                   Kirk L. Ramsauer
                                   Deputy General Counsel





                                      -18-


THIS AGREEMENT is made on 5th March, 1999

BETWEEN:

(1)  THE NATIONAL  GRID GROUP plc (a company  incorporated  in England and Wales
     with  registered  number  2367004)  ("NGG") as initial  guarantor  and as a
     Borrower;

(2)  THE NATIONAL GRID COMPANY plc (a company  incorporated in England and Wales
     with registered number 2366977) ("NG Company") as a Borrower;

(3)  ABN AMRO BANK N.V., BARCLAYS CAPITAL, CHASE MANHATTAN PLC, DEUTSCHE BANK AG
     LONDON,  DRESDNER  KLEINWORT  BENSON and HSBC  INVESTMENT BANK plc as joint
     arrangers (the "Arrangers");

(4)  HSBC INVESTMENT BANK plc as agent (the "Agent"); and

(5)  THE BANKS AND  FINANCIAL  INSTITUTIONS  listed in Schedule 1 (The Banks) as
     Banks.

IT IS AGREED as follows:

1.   INTERPRETATION

1.1  Definitions

In this Agreement:

     "1996 Facility Agreement"

     means the  (pound)800,000,000  syndicated  revolving  credit and acceptance
     facility  agreement  dated 6th  June,  1996  between  (amongst  others)  NG
     Company, NGG and Morgan Guaranty Trust Company of New York as Agent;

     "Acceptance Commission Rate"

     means the percentage rate per annum in respect of a Utilisation of the Bill
     Facility  determined in accordance with Clause 10.6 (Applicable  Margin and
     Acceptance Commission Rate);

     "Additional Borrower"

     means:

     (A)  a wholly owned Subsidiary of NGG (other than NG Company)  incorporated
          in the United Kingdom; or

     (B)  any other  Subsidiary  of NGG approved in writing by all of the Banks,
          which, in each case, becomes a Borrower in accordance with Clause 29.4
          (Additional Borrowers);

<PAGE>

     "Additional Guarantor"

     means a member of the Group which  becomes a guarantor in  accordance  with
     Clause 29.5 (Additional Guarantors);

     "Advance"

     means a Facility A Advance,  a Facility B Advance,  a Facility C Advance, a
     Facility D Advance or a Term-out Advance as the case may be;

     "Affiliate"

     means a Subsidiary  or a Holding  Company (as defined in Section 736 of the
     Companies  Act 1985) of a person and any other  Subsidiary  of that Holding
     Company;

     "Agent's Spot Rate of Exchange"

     means the spot rate of exchange as determined by the Agent for the purchase
     of the relevant  Optional  Currency in the London foreign  exchange  market
     with  Dollars or  Sterling,  as  applicable,  at or about  11.00 a.m.  on a
     particular day;

     "Anniversary"

     means an anniversary of the Signing Date;

     "Applicable Margin"

     means the percentage rate per annum  determined from time to time to be the
     Applicable  Margin in accordance  with Clause 10.6  (Applicable  Margin and
     Acceptance Commission Rate);

     "Asset Disposal"

     means any single  disposal  of any assets  (including  but not limited to a
     disposal of any  Subsidiary or Affiliate,  any disposal to facilitate or as
     part of a securitisation and any issue by a member of the Group of any debt
     instrument  convertible  into all or any part of the equity  share  capital
     owned by it in  another  member of the  Group)  by any  member of the Group
     after the  Signing  Date other than a disposal  of assets  permitted  under
     paragraphs (i) to (vii) of Clause 20.9(b) (Disposals);

     "Balance Sheet"

     means, at any time, the latest published audited consolidated balance sheet
     of the Group;

     "Banks"

     means each of the banks and financial  institutions listed in Parts I to IV
     of Schedule 1 (The Banks),  their  respective  successors  in title and any
     other bank or  financial  institution  which  becomes a Party  pursuant  to
     Clause 29.3 (Procedure for transfers);

                                       -2-
<PAGE>

     "Bill"

     means a  Sterling  bill of  exchange  substantially  in the form set out in
     Schedule 5 (Form of Bill);

     "Bill Facility"

     means the acceptance credit facility forming part of Facility D referred to
     in Clause 2 (The Facilities);

     "Borrower"

     means each of:

     (a)  in relation to Facility D only, NG Company; and

     (b)  in  relation to  Facilities  A, B and C only,  NGG and any  Additional
          Borrower;

     "Borrower Accession Agreement"

     means  an  agreement  substantially  in the  form  set  out in  Schedule  7
     (Borrower  Accession  Agreement)  with  such  amendments  as the  Agent may
     approve or reasonably require;

     "Business Day"

     means:

     (a)  a day (other  than a Saturday or a Sunday) on which banks are open for
          general interbank business in:

          (i)  London and, in relation to a transaction  involving Dollars,  New
               York; and

          (ii) in  relation to a  transaction  involving  an  Optional  Currency
               (other than Euros), the principal financial centre of the country
               of that Optional Currency; and

     (b)  in relation to a rate fixing for Euros, a TARGET Day;

     "Cash Disposal"

     means an Asset Disposal on arm's length terms, the  consideration for which
     is substantially  all cash or cash equivalent  consideration,  where all or
     part of such cash or cash equivalent consideration is applied in accordance
     with Clause 9.7 (Mandatory Prepayment from Significant Cash Disposals);

     "Commitment"

     means,  in relation to a Bank,  its Facility A  Commitment,  its Facility B
     Commitment,  its Facility C Commitment or its Facility D Commitment  or, as
     the context requires, the aggregate of all such Commitments;

                                       -3-
<PAGE>

     "Companies Act Subsidiary"

     means a subsidiary  within the meaning of Section 736 of the  Companies Act
     1985, as amended by Section 144 of the Companies Act 1989;

     "Controlled Group"

     means all members of a controlled  group of corporations  and all trades or
     businesses  (whether  or not  incorporated)  under  common  control  which,
     together with any Obligor,  are treated as a single  employer under Section
     414 of the U.S. Code;

     "Dangerous Substance"

     means any  radioactive  emissions and any natural or  artificial  substance
     (whether in solid or liquid  form or in the form of a gas or vapour)  which
     (whether alone or in conjunction  with any other substance) gives rise to a
     risk of causing harm to man or any other living  organism or causing damage
     to the  Environment  or public  health or welfare and  includes  but is not
     limited  to any  controlled,  special,  hazardous,  toxic,  radioactive  or
     dangerous waste;

     "Default"

     means an Event of  Default or any event  which,  with the giving of notice,
     expiry of any  applicable  grace period,  determination  of  materiality or
     fulfilment of any other  applicable  condition (or any  combination  of the
     foregoing)  in  each  case as  specified  in  Clause  21  (Default),  would
     constitute an Event of Default;

     "Disposal Proceeds"

     means in relation to any Asset Disposal, the value of all the consideration
     received  or  receivable  by members of the Group in relation to that Asset
     Disposal  whether at the time of the Asset  Disposal or on a deferred basis
     and for this purpose:

     (a)  counting as part of the consideration  the aggregate  principal amount
          of any  Financial  Indebtedness  in the entity  disposed  of and which
          remain in that entity immediately after the Asset Disposal;

     (b)  taking the value of any deferred consideration as an amount determined
          by the  auditors of NGG to represent  its net present  value as at the
          time the Asset Disposal is substantially completed; and

     (c)  taking non-cash  proceeds at their fair value as at the time the Asset
          Disposal is substantially completed;

                                       -4-
<PAGE>

     "EBDR"

     means the rate  determined by the Agent to be the  arithmetic  mean rounded
     upward, if necessary,  to the nearest four decimal places of the respective
     rates notified to the Agent by the Reference  Banks  (provided at least two
     Reference Banks are quoting) at or about 10.30 a.m. on the Utilisation Date
     for a Bill at which Eligible  Bills with a face amount of  (pound)1,000,000
     and of the same Tenor can be discounted in the London discount market at or
     about that time;

     "EIB Agreement"

     means the (pound)200,000,000 term credit agreement dated 5th December, 1996
     entered  into  between NG Company as  borrower,  NGG as  guarantor  and the
     European Investment Bank;

     "Electricity Act"

     means the UK  Electricity  Act 1989 and all  subordinate  legislation  made
     under it;

     "Eligible Bank"

     means a bank whose  acceptance  of a bill of exchange  would,  if such bill
     were  otherwise  so  eligible,  make such  bill of  exchange  eligible  for
     rediscount at the Bank of England;

     "Eligible Bill"

     means a Sterling bill of exchange eligible for rediscounting at the Bank of
     England;

     "EMU"

     means   Economic  and  Monetary  Union  as   contemplated   by  the  Treaty
     establishing the European Community;

     "EMU legislation"

     means legislative measures of the European Union in relation to EMU;

     "Energy and Network Business"

     means the business of generation,  transmission,  distribution, metering or
     supply of  electricity  or other sources of energy,  the  undertaking of an
     energy and telecoms  business  generally  and any  businesses  ancillary or
     incidental to any of those businesses;

     "Energy Laws"

     means the Electricity  Act and all other laws,  regulations or requirements
     of any relevant  authority (in so far as such  regulations or  requirements
     have the force of law) relating to the transmission, distribution or supply
     of electricity or any other sources of energy in each jurisdiction in which
     NGG or any of its Subsidiaries carries on business at any time;

                                       -5-
<PAGE>

     "Environment"

     means the media of air, water and land (wherever occurring) and in relation
     to the media of air and water  includes,  without  limitation,  the air and
     water  within  buildings  and the air and water  within  other  natural  or
     man-made  structures  above or below ground and any water  contained in any
     underground strata;

     "Environmental Approvals"

     means all  authorisations of any kind required under  Environmental Laws to
     which any member of the Group is subject at any time;

     "Environmental Law"

     means all  legislation,  regulations or orders (insofar as such regulations
     or orders  have the  force of law) to the  extent  that they  relate to the
     protection  or impairment  of the  Environment  or the control of Dangerous
     Substances  to which any  member of the Group is  subject  at any  relevant
     time;

     "ERISA"

     means the U.S. Employee Retirement Income Security Act of 1974 and any rule
     or regulation issued thereunder from time to time in effect;

     "EUA"

     means Eastern Utilities Associates, a Massachusetts business trust;

     "EUA Acquisition"

     means the purchase by NEES (or one of its wholly-owned Subsidiaries) of all
     the issued shares of common stock in EUA as  contemplated in the EUA Merger
     Agreement;

     "EUA Merger Agreement"

     means the Agreement  and Plan of Merger dated as of 1st  February,  1999 by
     and among NEES, Research Drive LLC and EUA;

     "Euro, Euros, |_|"

     means the single currency of the  Participating  Member States and excludes
     all Euro Sub- Denominations;

     "Euro Sub-Denomination"

     means the  national  currency  (other  than the Euro) of any  Participating
     Member State;

     "Euro unit"

     means a unit of the Euro as defined in EMU legislation;

                                       -6-
<PAGE>

     "Event of Default"

     means an event specified as such in Clause 21.1 (Events of Default);

     "Facilities"

     means Facility A, Facility B, Facility C, Facility D and the Bill Facility;

     "Facility A Advance"

     means an advance made or to be made by a Bank under Facility A;

     "Facility A Availability Period"

     means the period from and  including  the Signing Date to and including the
     second Anniversary;

     "Facility A Commitment"

     means in relation to a Bank:

     (a)  the amount in Dollars  set  opposite  its name in Part I of Schedule 1
          (The Banks); or

     (b)  the amount of that Commitment acquired by such Bank pursuant to Clause
          29.2 (New Banks) and/or Clause 29.3 (Procedure for transfers),

     less in each  case the  amount of that  Commitment  cancelled,  reduced  or
     transferred by that Bank pursuant to this Agreement;

     "Facility A Total Commitments"

     means the aggregate for the time being of the Facility A Commitments, being
     US$850,000,000 at the date of this Agreement;

     "Facility B Advance"

     means an advance made or to be made by a Bank under Facility B;

     "Facility B Availability Period"

     means the period from and  including  the Signing Date to and including the
     date one month before the Final Maturity Date;

     "Facility B Commitment"

     means in relation to a Bank:

     (a)  the amount in Dollars set  opposite its name in Part II of Schedule 1;
          or

                                       -7-
<PAGE>

     (b)  the amount of that Commitment acquired by such Bank pursuant to Clause
          29.2 (New Banks) and/or Clause 29.3 (Procedure for transfers),

     less in each  case the  amount of that  Commitment  cancelled,  reduced  or
     transferred by that Bank pursuant to this Agreement;

     "Facility B Total Commitments"

     means the aggregate for the time being of the Facility B Commitments, being
     US$550,000,000 at the date of this Agreement;

     "Facility C Advance"

     means an advance made or to be made by a Bank under Facility C;

     "Facility C Availability Period"

     means the period from the Signing  Date to the date which is 364 days after
     the Signing Date, or in relation to any Bank,  such later date as that Bank
     may have agreed under  Clause 5.10  (Extension  of Facility C  Availability
     Period);

     "Facility C Commitment"

     means in relation to a Bank:

     (a)  the amount in Dollars set  opposite its name in Part III of Schedule 1
          (The Banks); or

     (b)  the amount of that Commitment acquired by such Bank pursuant to Clause
          29.2 (New Banks) and/or Clause 29.3 (Procedure for transfers),

     less in each  case the  amount of that  Commitment  cancelled,  reduced  or
     transferred by that Bank pursuant to this Agreement;

     "Facility C Total Commitments"

     means the aggregate for the time being of the Facility C Commitments, being
     US$1,350,000,000 at the date of this Agreement;

     "Facility D Advance"

     means an advance made or to be made by a Bank under Facility D;

     "Facility D Availability Period"

     means the period from and  including  the Signing Date to and including the
     date one month before the Final Maturity Date;

                                       -8-
<PAGE>

     "Facility D Commitment"

     means in relation to a Bank:

     (a)  the amount in Sterling  set opposite its name in Part IV of Schedule 1
          (The Banks); or

     (b)  the amount of that Commitment acquired by such Bank pursuant to Clause
          29.2 (New Banks) and/or Clause 29.3 (Procedure for transfers),

     less in each  case the  amount of that  Commitment  cancelled,  reduced  or
     transferred by that Bank pursuant to this Agreement;

     "Facility D Total Commitments"

     means the aggregate for the time being of the Facility D Commitments, being
     (pound)250,000,000 at the date of this Agreement;

     "Facility D Utilisation"

     means a utilisation  of Facility D by the drawing of Facility D Advances or
     Bills;

     "Facility Office"

     means, in relation to any Bank, the office(s) through which it will perform
     all or any of its  obligations  under this Agreement  being those office(s)
     identified  with its signature  below (or, in the case of any New Bank, the
     office(s)  specified in the relevant  Transfer  Certificate)  or such other
     office(s) as it may from time to time select by not less than five Business
     Days' notice to the Agent;

     "Fee Letter"

     means each of:

     (i)  the  Underwriting  and  Mandate  Letter  from  the  Arrangers  to  the
          Borrowers  dated 19th  February,  1999  setting out the amount of fees
          referred to in Clause 23.1 (Front-end fees); and

     (ii) the  Agency  Fee  Letter  from the Agent to NGG dated on or around the
          Signing Date setting out the amount of fees referred to in Clause 23.4
          (Agency fee);

     "Final Maturity Date"

     means, subject to Clause 9 (Prepayment and Cancellation):

     (a)  in relation to Facilities A, B and D, the fifth Anniversary; and

     (b)  in relation to Facility C;

          (i)  the date falling 364 days after the Signing Date; or

                                       -9-
<PAGE>

         (ii)  where  any Banks  agree to extend  the  Facility  C  Availability
               Period   pursuant  to  Clause  5.10   (Extension  of  Facility  C
               Availability Period) then, with respect to Advances made by those
               Banks only, the date that is 364 days after the date in paragraph
               (b)(i) above; or

        (iii)  in the case of a Term-out Advance,  the date specified as such in
               the Utilisation Request for that Term-out Advance;

     "Finance Document"

     means this  Agreement,  a Fee Letter,  a Bill,  a Transfer  Certificate,  a
     Borrower Accession Agreement, a Guarantor Accession Agreement and any other
     document designated in writing as such by the Agent and NGG;

     "Finance Party"

     means  each of the  Arrangers,  the Banks  and the  Agent  (as the  context
     requires);

     "Financial Indebtedness"

     means (without double counting) any indebtedness in respect of:

     (a)  moneys  borrowed  or debit  balances  at  banks  and  other  financial
          institutions;

     (b)  any debenture,  bond, note, commercial paper, loan stock or other debt
          instrument;

     (c)  any acceptance or documentary credit  facilities,  bill discounting or
          factoring facilities;

     (d)  receivables  sold or  discounted  (otherwise  than  on a  non-recourse
          basis);

     (e)  the  acquisition  cost of any asset to the  extent  payable  before or
          after the time of  acquisition or possession by the party liable where
          the advance or deferred  payment is arranged  primarily as a method of
          raising finance or financing the acquisition of that asset;

     (f)  leases (whether in respect of land, machinery, equipment or otherwise)
          entered into primarily as a method of raising finance or financing the
          acquisition of the asset leased;

     (g)  currency or interest  swap,  cap or collar  arrangements  or any other
          derivative instrument;

     (h)  amounts  raised  under any other  transaction  having  the  commercial
          effect of a borrowing or raising of money; and

     (i)  any   guarantee,   indemnity  or  similar   assurance  in  respect  of
          indebtedness of any person falling within any of paragraphs (a) to (h)
          (both inclusive) above;

                                      -10-
<PAGE>

     "Financial Indebtedness Limit"

     means  each of the  limits  placed  on the  amount of  permitted  Financial
     Indebtedness  of  Subsidiaries  set out in  paragraph  (d) of Clause  20.15
     (Restrictions on Subsidiary  Financial  Indebtedness) as adjusted from time
     to  time  in  accordance  with  paragraph  (c)  of  Clause  9.7  (Mandatory
     Prepayment from Significant Cash Disposals);

     "forward-Sterling Advance"

     means an Advance in Sterling  made by a Bank where that Bank has elected by
     notice to the  Agent,  given at the time that Bank  becomes a party to this
     Agreement  or at the time a Bank changes its  Facility  Office,  to fix the
     interest  rate on  Advances  in  Sterling  two  Business  Days prior to the
     Utilisation Date (rather than on the Utilisation Date);

     "Grid Code"

     means the Grid Code drawn up pursuant to the  Transmission  Licence(s),  as
     from time to time revised in accordance with the Transmission Licence(s);

     "Group"

     means  NGG and its  Subsidiaries  from  time to time and  including,  after
     completion  of the NEES  Acquisition,  the NEES  Group but if at any time a
     Project Finance Company is a Subsidiary Undertaking but not a Companies Act
     Subsidiary,  then, for so long as it shall be a Subsidiary  Undertaking but
     not a Companies Act Subsidiary,  it shall be deemed for the purposes of the
     Finance  Documents (unless the contrary is specified) not to be a member of
     the Group;

     "Guarantor"

     means each of NGG and any Additional Guarantor;

     "Guarantor Accession Agreement"

     means  an  agreement  substantially  in the  form  set  out in  Schedule  8
     (Guarantor  Accession  Agreement)  with  such  amendments  as the Agent may
     approve or reasonably require;

     "Information Memorandum"

     means the Information  Memorandum to be prepared and delivered to potential
     lenders in connection with primary syndication of the Facilities (including
     any supplements);

     "Interest Date"

     means the last day of an Interest Period;

                                      -11-
<PAGE>

     "Interest Period"

     means,  in  relation  to a Facility A Advance or a Term-out  Advance,  each
     period  determined  in accordance  with Clause 10.1  (Selection of Interest
     Periods for Facility A Advances and Term-out  Advances)  or, in relation to
     overdue amounts, Clause 10.4 (Default interest);

     "Interest Period Selection Notice"

     means a notice  substantially  in the form set out in  Schedule  4 (Form of
     Utilisation Request/Interest Period Selection Notice);

     "LIBOR"

     means in relation to any Advance:

     (a)  except in  relation  to a  forward-Sterling  Advance,  the rate of the
          offered quotation for deposits in the currency of the relevant Advance
          for the  required  period  which  appears  on  Telerate  Page  3750 or
          Telerate  Page  3740,  as the case may be, at or about 11 a.m.  on the
          applicable Rate Fixing Day; or

     (b)  in relation to a forward-Sterling Advance (or in relation to any other
          Advance if no such offered rate appears on the relevant  Telerate Page
          as provided in (a) above),  the arithmetic  mean (rounded  upward,  if
          necessary,  to four decimal  places) of the rates,  as supplied to the
          Agent at its request,  quoted by the Reference  Banks to leading banks
          in  the  London  interbank  market  at or  about  11.00  a.m.  on  the
          applicable  Rate  Fixing  Day  for the  offering  of  deposits  in the
          currency and amount of the relevant Advance for the required period,

     and for the purpose of this definition:

     (i)  "required period" means the applicable  Interest Period for a Facility
          A Advance or a Term-out Advance or the Term of a Facility B Advance, a
          Facility C Advance  (other  than a Term-out  Advance)  or a Facility D
          Advance; and

     (ii) "Telerate  Page 3750" means the display  designated as Page 3750,  and
          "Telerate  Page 3740" means the display  designated  as Page 3740,  in
          each case on the Telerate  Service (or such other pages as may replace
          Page 3750 or Page 3740 on that service or such other service as may be
          nominated by the British Bankers'  Association  (including the Reuters
          Screen) as the  information  vendor  for the  purposes  of  displaying
          British Bankers' Association Interest Settlement Rates for deposits in
          the currency concerned);

     "Licence"

     means each of:

     (a)  the  Transmission  Licences  granted  by the  Secretary  of State to a
          member of the Group under section 6(1)(b) of the Electricity Act; and

                                      -12-
<PAGE>

     (b)  each  other  licence  or other  similar  authorisation  granted by any
          relevant  authority in any applicable  jurisdiction to a member of the
          Group pursuant to an Energy Law or otherwise to permit it to carry out
          generation, transmission, distribution or supply of electricity;

     "Majority Banks"

     means, at any time,  Banks the sum of the aggregate  Original Dollar Amount
     of whose  Utilisations  and undrawn  Commitments  at that time aggregate at
     least 662/3 per cent. of the sum of the aggregate Original Dollar Amount of
     all Utilisations  then  outstanding and the then undrawn Total  Commitments
     (or if the Total  Commitments  have been  reduced  to zero and there are no
     Utilisations then outstanding,  whose Commitments  aggregate at least 662/3
     per cent. of the Total Commitments immediately before the reduction);

     "Mandatory Cost"

     means the cost  imputed  to a Bank of  compliance  with the cash  ratio and
     special deposit  requirements of the Bank of England and the amount of fees
     payable to the  Financial  Services  Authority  during the Term or Interest
     Period  of any  Advance,  as  determined  in  accordance  with  Schedule  3
     (Calculation of the Mandatory Cost);

     "Maturity Date"

     means  the last day of the Term of a  Facility  B  Advance,  a  Facility  C
     Advance  (other than a Term- out  Advance),  a Facility D Advance or of the
     Tenor of a Bill;

     "Moody's"

     means Moody's Investors Services, Inc.;

     "Multi Employer Plan"

     means a "multi employer plan" as defined in Section  4001(a)(3) of ERISA to
     which any Obligor or any member of the  Controlled  Group has an obligation
     to contribute;

     "NEES"

     means New England Electricity System, a Massachusetts business trust;

     "NEES Acquisition"

     means the purchase of all of the issued and  outstanding  common  shares in
     NEES pursuant to the NEES Acquisition Agreement;

     "NEES Acquisition Agreement"

     means the Agreement and Plan of Merger dated as of 11th  December,  1998 by
     and among NGG, Iosta LLC and NEES;

                                      -13-
<PAGE>

     "NEES Acquisition Completion Date"

     means the date specified as such in the certificate in relation to the NEES
     Acquisition  delivered to the Agent as referred to in paragraph (e) of Part
     II of Schedule 2 (Conditions Precedent Documents);

     "NEES Group"

     means  NEES  and  its  Subsidiaries  from  time to  time  including,  after
     completion of the EUA Acquisition,  EUA and its  Subsidiaries  from time to
     time;

     "Net Available Proceeds"

     means, in relation to any Cash Disposal, such part of the Net Cash Proceeds
     as any Borrower is able lawfully to apply in prepayment of Advances and, in
     the case of any such  disposal  effected  by any member of the Group  other
     than a Borrower, such part of the Net Cash Proceeds of that disposal as:

     (a)  such  member of the Group would be able  lawfully  to make  available,
          directly  or  indirectly,  to any  Borrower  to enable it to make such
          application;

     (b)  that Borrower is able lawfully to so apply; and

     (c)  in the  case  of a  disposal  outside  the  United  Kingdom,  NGG  has
          determined in good faith can be  repatriated to a Borrower in order to
          apply the same in prepayment  of  Utilisations  without  breaching any
          relevant exchange control or similar restrictions in the country where
          the Net Cash  Proceeds  are  received or  receivable  by the  relevant
          member of the Group,

     provided that in each case the relevant member of the Group takes all steps
     that are reasonably open to it to obtain any exchange control  clearance or
     other consents,  permits,  authorisations or licences which are required to
     enable  the Net Cash  Proceeds  to be  repatriated  to, and  applied  by, a
     Borrower  in order to effect such a  prepayment  or such other steps as the
     Majority  Banks  may  reasonably  require  to make  the Net  Cash  Proceeds
     available for this purpose;

     "Net Cash Proceeds"

     means,  in  relation  to any Cash  Disposal,  the  cash or cash  equivalent
     proceeds  of such  disposal  actually  received  by the member of the Group
     concerned including, as at the date of actual receipt thereof, any deferred
     consideration  or  consideration  which is received,  for whatever  reason,
     otherwise than at the time of such disposal, less:

     (a)  all legal,  title,  registration  and  recording  taxes and  expenses,
          commissions,  costs, fees and expenses  incidental to, incurred on and
          fairly attributable to, that Cash Disposal;

     (b)  such  amount as the  auditors  to NGG  shall  consider  reasonable  as
          provision against the marginal increase in the liability of any member
          of the Group to pay any tax arising as a result of that Cash  Disposal
          as certified to the Agent by those auditors;

                                      -14-
<PAGE>

     (c)  in the  case of a  disposal  effected  by a  Subsidiary  of NGG,  such
          provision  as NGG shall  consider  reasonable  for all costs and taxes
          incurred by the Group and fairly attributable to up-streaming the cash
          proceeds or making any distribution in connection  therewith to enable
          them to reach a Borrower (including, without limitation, the repayment
          of  Financial  Indebtedness  related to the assets the  subject of the
          Cash Disposal which are required to be repaid in order to complete the
          Cash Disposal), but if the Majority Banks require such provision to be
          reviewed by the auditors of NGG from time to time,  only if and to the
          extent that the auditors confirm the same;

     (d)  in the case of a disposal of a Subsidiary, net cash which was shown in
          the  accounts of the  Subsidiary  concerned  and  demonstrated  to the
          satisfaction  of the  auditors  of NGG from  time to time to have been
          relied upon by the  purchaser  in making its  decision to purchase the
          Subsidiary and in fixing the purchase price therefor;

     (e)  any amount paid by the Group to top up an  underfunded  pension scheme
          in a  Subsidiary  or business  disposed of to the extent  necessary to
          facilitate the disposal;

     (f)  any amount  required to be paid by the Group to the  proprietor of any
          intellectual   property  rights   (including   intellectual   property
          licences)  related to the  assets  disposed  of where such  payment is
          required to enable such intellectual property rights to be transferred
          with such assets to the extent necessary to facilitate the disposal;

     (g)  in the case of a disposal of a Subsidiary  where  liabilities to third
          parties  are  assumed  by other  members  of the  Group as part of the
          consideration  for the sale of that  Subsidiary,  such  amount  of the
          consideration  received by the Group which is fairly  attributable  to
          that assumption; and

     (h)  in the case of a disposal by a  Subsidiary  that is not a wholly owned
          Subsidiary   of  NGG,  the  pro  rata  share  of  such  cash  proceeds
          attributable to the minority interests in that Subsidiary;

     "NG Company Guarantor"

     means each Regulated UK Subsidiary  which becomes a guarantor of NG Company
     in accordance with Clause 29.5 (Additional Guarantors);

     "NG Company Group"

     means NG Company and each  Regulated  UK  Subsidiary  (if any) from time to
     time;

     "Offeror"

     means NGG or a wholly owned subsidiary of NGG;

     "Obligor"

     means each of the  Borrowers  and/or each of the  Guarantors as the context
     requires;

                                      -15-
<PAGE>

     "Optional Currency"

     means:

     (a)  in  relation to Facility  B,  Sterling,  Euros and any other  currency
          (excluding  any Euro Sub-  Denominations)  which is for the time being
          freely transferable and convertible into Dollars and deposits of which
          are readily available in the London interbank market;

     (b)  in  relation  to Facility  D,  Dollars,  Euros and any other  currency
          (excluding  any Euro Sub-  Denominations)  which is for the time being
          freely  transferable  and  convertible  into  Sterling and deposits of
          which are readily available in the London interbank market;

     "Original Dollar Amount"

     means

     (a)  in relation to Utilisations under Facility A, Facility B or Facility C
          or the aggregate of all Utilisations  under all Facilities  (including
          under Facility D):

          (i)  if a Utilisation is denominated in Dollars,  the principal amount
               of that Utilisation; or

          (ii) if a  Utilisation  is  denominated  in any  other  currency,  the
               principal  amount of that Utilisation  notionally  converted into
               Dollars on the basis of the Agent's  Spot Rate of Exchange on the
               date of receipt by the Agent of the Utilisation  Request for that
               Utilisation; or

     (b)  in relation to determining the Total  Commitments or, for the purposes
          of the definition of the Majority Banks, Commitments,  if a Commitment
          is  denominated  in any currency  other than  Dollars,  the  principal
          amount of that  Commitment  notionally  converted  into Dollars on the
          basis of the Agent's  Spot Rate of Exchange  at the  relevant  date of
          calculation;

     "Original Group Accounts"

     means the  audited  consolidated  accounts  of the Group for the year ended
     31st March, 1998 prepared in accordance with the historic cost convention;

     "Original NG Company Accounts"

     means the audited unconsolidated accounts for NG Company for the year ended
     31st March, 1998 prepared in accordance with the historic cost convention;

     "Original Sterling Amount"

     means (in relation to Facility D Utilisations):

     (a)  the  principal  amount  of a  Utilisation  if  it  is  denominated  in
          Sterling; or

                                      -16-
<PAGE>

     (b)  if a Utilisation is denominated in an Optional Currency, the principal
          amount of that Utilisation  notionally  converted into Sterling on the
          basis of the  Agent's  Spot Rate of Exchange on the date of receipt by
          the Agent of the Utilisation Request for that Utilisation;

     "Participating Member State"

     means a member  state of the  European  Union  that  adopts the Euro as its
     currency in accordance with EMU legislation;

     "Party"

     means a party to this Agreement;

     "PBGC"

     means the Pension Benefit Guaranty Corporation;

     "Plan"

     means an "employee benefit plan" (as defined in Section 3(3) of ERISA);

     "PUHCA"

     means the United States of America  Public Utility  Holding  Company Act of
     1935, as amended;

     "Primary Syndication Period"

     means the period  ending on the earlier of the date the Agent  notifies NGG
     that primary syndication of the Facilities is completed and 30th June, 1999
     (or such other date as NGG and the Arrangers may agree);

     "Principal Subsidiary"

     means:

     (i)  an Obligor (other than NGG); or

     (ii) any  other  member  of the  Group  whose  tangible  net  worth  or net
          pre-taxation  profits at any time equal or exceed five per cent.  (5%)
          of the Tangible  Consolidated Net Worth or net pre-taxation profits of
          the Group at that time, and for the purposes of the above:

          (a)  the  net   pre-taxation   profits  of  the  Subsidiary  shall  be
               ascertained by reference to:

               (i)  the accounts  (consolidated  in the case of a company  which
                    itself has  Subsidiaries  and which,  in the normal  course,
                    prepares consolidated accounts) of the Subsidiary based upon
                    which the latest audited consolidated  accounts of the Group
                    have been made up; or

                                      -17-
<PAGE>

               (ii) if the company  becomes a Subsidiary of NGG after the end of
                    the   financial   period   to  which  the   latest   audited
                    consolidated  accounts  of  the  Group  relate,  the  latest
                    accounts (consolidated in the case of a company which itself
                    has Subsidiaries  and which, in the normal course,  prepares
                    consolidated accounts) of the Subsidiary; and

          (b)  tangible  net worth of the  Subsidiary  shall be  ascertained  by
               reference  to the  Tangible  Consolidated  Net  Worth  definition
               contained  in this  Clause,  changed  where  necessary  and as if
               references therein to NGG were references to such Subsidiary, and
               references  therein to the relevant period were references to the
               financial  year of such  Subsidiary  and on the  basis  that  all
               intra-Group items and investments shall be excluded; and

          (c)  the net pre-taxation profits of the Group shall be ascertained by
               reference  to the latest  audited  consolidated  accounts  of the
               Group,   adjusted   (where   appropriate)   to  reflect  the  net
               pre-taxation  profits of any  company  subsequently  acquired  or
               disposed of,

     provided always that if the whole or substantially  the whole of the assets
     of a Principal  Subsidiary is transferred by that Principal Subsidiary (the
     "disposing  Subsidiary")  to  another  Subsidiary  of NGG  (the  "receiving
     Subsidiary") or a number of  Subsidiaries of NGG, the disposing  Subsidiary
     shall  forthwith upon the transfer  cease to be a Principal  Subsidiary and
     the  receiving  Subsidiary  shall  forthwith  upon  the  transfer  become a
     Principal Subsidiary;

     "Project Finance Borrowing"

     means any Financial Indebtedness to finance a project:

     (a)  which is borrowed by a single  purpose  company,  partnership or other
          legal  person  (whether or not a member of the Group) where its or one
          or  more  of its  subsidiaries,  principal  assets  and  business  are
          constituted  by that project and whose  liabilities  in respect of the
          Financial  Indebtedness  concerned are not directly or indirectly  the
          subject  of  a  guarantee,  indemnity  or  other  form  of  assurance,
          undertaking  or  support  from any  member  of the  Group  (except  as
          expressly  referred to in paragraph  (b)(iii)  below or as a result of
          the making of  acceptances  or  endorsements  of bills in the ordinary
          course of trading  or payment  netting  arrangements  and other  usual
          course of business banking arrangements); or

     (b)  in  respect  of which the  person or  persons  making  that  Financial
          Indebtedness  available  to the  relevant  borrower  (whether or not a
          member of the Group) have no recourse  whatsoever to any member of the
          Group for the  repayment  of or  payment of any sum  relating  to that
          Financial Indebtedness other than:

          (i)  recourse to the borrower or one or more of its subsidiaries,  for
               amounts  limited  to the  aggregate  cash  flow or net cash  flow
               (other than  historic  cash flow or historic  net cash flow) from
               the project; and/or

                                      -18-
<PAGE>

         (ii)  recourse to the borrower,  or one or more of its  subsidiaries or
               any  shareholder of the borrower for the purpose only of enabling
               amounts to be claimed in respect of that  Financial  Indebtedness
               in an enforcement of any Security Interest  permitted pursuant to
               Clause 20.8  (Negative  pledge)  given by the  borrower or one or
               more of its subsidiaries over the assets comprised in the project
               (or given by any  shareholder  of the borrower over its shares in
               the  borrower  together  with,  in the case of a UK  incorporated
               shareholder  whose only  material  assets are those shares in the
               borrower,  a supporting floating charge over all or substantially
               all of its assets,  to secure that Financial  Indebtedness or any
               recourse  referred to in (iii) below or as a result of the making
               of acceptances or endorsements of bills in the ordinary course of
               trading or payment netting arrangements and other usual course of
               business  banking  arrangements,  provided that (A) the extent of
               the recourse to the  borrower or one or more of its  subsidiaries
               or  shareholder is limited solely to the amount of any recoveries
               made on any such  enforcement,  and (B) the person or persons are
               not  entitled,  by virtue of any right to claim arising out of or
               in  connection  with  the  Financial  Indebtedness,  to  commence
               proceedings  for the winding up or dissolution of the borrower or
               shareholder  or to  appoint  or procure  the  appointment  of any
               receiver, trustee or similar person or official in respect of the
               borrower or shareholder or any of its assets (save for the assets
               the subject of the relevant Security Interest); and/or

        (iii)  recourse to such borrower generally, or directly or indirectly to
               a member of the Group under any form of assurance or undertaking,
               which  recourse  is limited to a claim for  damages  (other  than
               liquidated  damages and damages  required to be  calculated  in a
               specified  way) for breach of an obligation  (not being a payment
               obligation or an  obligation to procure  payment by another or an
               obligation to comply or to procure compliance by another with any
               financial  ratios or other tests of financial  condition)  by the
               person against whom such recourse is available; or

     (c)  which the  Majority  Banks  shall  have  agreed in writing to treat as
          Project Finance Borrowing for the purposes of the Finance Documents.

     If at any time any Financial  Indebtedness is made to finance a project and
     that Financial Indebtedness does not qualify as a Project Finance Borrowing
     pursuant to the above paragraphs (b)(i), (ii) or (iii) but would so qualify
     if there  were not  recourse  to a member of the Group  which is either (i)
     limited as to the period during which it is in force (for  example,  during
     the  period up to  completion  of the  project)  or (ii)  limited as to the
     obligations  of the borrower to which it applies,  then,  in any such case,
     the Financial Indebtedness shall be regarded as a Project Finance Borrowing
     for the  purposes of this  definition  to the extent  that,  and during the
     period that, there is no such recourse to a member of the Group;

     "Project Finance Company"

     means any company,  partnership  or other legal person  falling  within the
     scope of paragraph (a) of the  definition of Project  Finance  Borrowing or
     which the Majority Banks have agreed shall be treated as a Project  Finance
     Company for the purposes of the Finance Documents;

                                      -19-
<PAGE>

     "Qualifying Bank"

     means a bank that:

     (a)  is a bank as  defined in  Section  840A of the Income and  Corporation
          Taxes Act 1988 and is within the charge to corporation  tax as regards
          any  interest  received  by it  under  this  Agreement  and  which  is
          beneficially entitled to that interest; or

     (b)  is  resident  (as  such  term is  defined  in the  appropriate  double
          taxation  treaty) in a country  with which the United  Kingdom  has an
          appropriate  double  taxation  treaty under which that  institution is
          entitled  to  exemption  from United  Kingdom  tax on interest  and is
          entitled to apply under the Double  Taxation  Relief (Taxes on Income)
          (General)  Regulations  1970 to  have  interest  paid to its  relevant
          Facility Office without  withholding or deduction for or on account of
          United Kingdom  taxation (and does not carry on business in the United
          Kingdom through a permanent  establishment  with which the investments
          under  this  Agreement  in respect  of which the  interest  is paid is
          effectively  connected) and for this purpose "double  taxation treaty"
          means any convention or agreement between the government of the United
          Kingdom and any other  government for the avoidance of double taxation
          and the  prevention of fiscal  evasion with respect to taxes on income
          and capital gains;

     "Rate Fixing Day"

     means:

     (a)  the second  Business Day before the first day of an Interest Period or
          the Term of an Advance  (other  than an Advance in  Sterling or Euros,
          but including forward-Sterling Advances); or

     (b)  in the case of an  Advance  in  Sterling  (except  a  forward-Sterling
          Advance), the first day of the Term of that Advance; or

     (c)  in the case of an Advance in Euros,  the second  TARGET Day before the
          first day of an Interest Period or the Term of that Advance,

          or such  other  day on which it is  market  practice  in the  relevant
          interbank  market for leading banks to give quotations for deposits in
          the  relevant  currency  for delivery on the first day of the relevant
          Interest Period or Term, as determined by the Agent;

     "Reference Banks"

     means,  subject to Clause 29.6  (Reference  Banks),  the  principal  London
     offices of The Chase  Manhattan  Bank,  Deutsche Bank AG London and Midland
     Bank plc;

     "Regulated Holding Company"

     means,  in respect of any Bank,  any person which is a Holding  Company (as
     defined  in  section  736 of the  Companies  Act  1985) of that Bank and is
     regulated as a bank or other financial institution;

                                      -20-
<PAGE>

     "Regulated UK Subsidiary"

     means,  at any time,  any member of the Group (other than NG Company) which
     operates any part of the  Transmission  Business carried on, as at the date
     of this Agreement, by NG Company pursuant to its Transmission Licence;

     "Regulated U.S. Subsidiary"

     means  any  Subsidiary  of  NGG  including,   after  the  NEES  Acquisition
     Completion  Date,  NEES,  and any  Subsidiary  of NEES which  operates  any
     electricity  generation,  transmission,  distribution  or  supply  business
     pursuant  to any Energy  Laws of the  United  States or of any State of the
     United States or pursuant to a Licence issued pursuant to such Energy Laws;

     "Regulations D, T, U and X"

     means, respectively, regulations D, T, U and X of the Board of Governors of
     the Federal Reserve System of the United States (or any successor);

     "Relevant Time"

     means the  applicable  time set  opposite  a Clause  number in  Schedule  9
     (Timetables);

     "Reportable Event"

     means a  reportable  event as  defined  in  Section  4043 of ERISA  and the
     regulations  issued under such  section with respect to a Plan,  excluding,
     however,  such  events  as to  which  the  PBGC by  regulation  waived  the
     requirement of Section  4043(a) of ERISA that it be notified within 30 days
     of the occurrence of such event, provided,  however, that a failure to meet
     the minimum funding standard of Section 412 of the U.S. Code and of Section
     302 of ERISA shall be a Reportable  Event regardless of the issuance of any
     such waiver of the notice  requirement  in accordance  with either  Section
     4043(a) of ERISA or Section 412(d) of the U.S. Code;

     "Requested Amount"

     means the  requested  amount of a  Utilisation  as set out in a Utilisation
     Request;

     "Reserve Asset Costs"

     means (without double counting):

     (a)  in relation to any Advance for any period, the Mandatory Costs;

     (b)  in  relation  to any  Advance  denominated  in  Dollars  to a Borrower
          incorporated   in  the  United   States  made   available  by  a  Bank
          incorporated  in the  United  States  and  lending  through a Facility
          Office  located  in the  United  States or by a branch  in the  United
          States of a Bank not  incorporated in the United States,  the cost, if
          any,  certified  by that  Bank as the  cost  to it of  complying  with
          Regulation D attributable to such Advance as a result of a

                                      -21-
<PAGE>

          change in Regulation D or the interpretation or application thereof on
          or after the Signing Date;

     (c)  in relation to any Advance for any period, the cost, if any, certified
          by a Bank as the  cost  to it of  complying  with  any  regulatory  or
          central bank requirement  relating to any Advance  including,  but not
          limited to, any reserve asset or similar  requirements of the European
          Central Bank attributable to such Advance; and

     (d)  in  relation to an Advance  denominated  in any  currency  (other than
          Sterling or Dollars and other than any amount  included in  paragraphs
          (a) or (c) above), the cost, if any, certified by any Bank as the cost
          to it of  complying  with any  applicable  regulatory  or central bank
          requirement  relating  to  Advances in that  currency  made  through a
          branch in the  jurisdiction of the relevant  currency as a result of a
          change in law,  regulation or  interpretation  or application  thereof
          occurring  on or after the later of (i) the Signing  Date and (ii) the
          date on which such Bank becomes a party to this Agreement;

     "Security Interest"

     means any mortgage,  pledge,  lien,  charge,  assignment,  hypothecation or
     security  interest or any other agreement or arrangement  having the effect
     of conferring security;

     "Significant Cash Disposal"

     means  any  Asset  Disposal  where the Net Cash  Proceeds  from that  Asset
     Disposal  or  any  related  series  of  Asset  Disposals  is  greater  than
     (pound)10,000,000 or its equivalent in other currencies;

     "Signing Date"

     means the date of this Agreement;

     "S&P"

     means Standard & Poor's Corporation;

     "Subsidiaries"

     means  Companies  Act   Subsidiaries  and  Subsidiary   Undertakings   (and
     "Subsidiary" shall be construed accordingly);

     "Subsidiary Undertaking"

     means a  subsidiary  undertaking  within the  meaning of Section 258 of the
     Companies Act 1985 (as inserted by Section 21 of the Companies Act 1989);

     "Tangible Consolidated Net Worth"

     means at any time the aggregate of:

                                      -22-
<PAGE>

     (i)  the amount paid up or credited as paid up on the issued share  capital
          of NGG; and

     (ii) the amount  standing  to the credit of the  consolidated  capital  and
          revenue reserves of the Group,

     based on the Balance Sheet but adjusted by (without double counting):

     (A)  adding  any  amount  standing  to the  credit of the  profit  and loss
          account for the Group for the period ending on the date of the Balance
          Sheet,  to the extent not included in paragraph  (ii) above and to the
          extent  the  amount  is not  attributable  to any  dividend  or  other
          distribution declared,  recommended or made by NGG or any other member
          of the Group to the extent of any minority interests therein;

     (B)  deducting  any  amount  standing  to the debit of the  profit and loss
          account for the Group for the period ending on the date of the Balance
          Sheet;

     (C)  reflecting  any variation in the amount of the issued share capital of
          NGG and the  consolidated  capital and  revenue  reserves of the Group
          after the date of the Balance Sheet;

     (D)  reflecting any variation in the interest of NGG in any other member of
          the Group since the date of the Balance Sheet;

     (E)  excluding any amount  attributable to deferred  taxation to the extent
          included in paragraphs (i) and (ii) above; and

     (F)  excluding any amount  attributable to minority interests to the extent
          included in paragraphs (i) and (ii) above;

     "TARGET Day"

     means  a  day  on  which  the  Trans-European   Automated  Real-Time  Gross
     Settlement Express Transfer (TARGET) System is open;

     "Tenor"

     means,  in relation to any Bill,  the period from the  Utilisation  Date on
     which  it is  accepted  until  its  Maturity  Date,  as  specified  in  the
     Utilisation Request relating thereto;

     "Term"

     means,  in  relation to a Facility B Advance,  a Facility C Advance  (other
     than a Term-out Advance) or a Facility D Utilisation (including Bills), the
     period  selected  by a  Borrower  for which the  relevant  Advance is to be
     outstanding,  as  specified in the  Utilisation  Request and  includes,  in
     relation to any Bill, its Tenor;

                                      -23-
<PAGE>

     "Term-out Advance"

     means a  Facility  C  Advance  drawn  under  paragraph  (b) of  Clause  8.3
     (Repayment of Facility C Advances);

     "Total Commitments"

     means,  on any day and from time to time,  the  aggregate of the Facility A
     Total Commitments,  the Facility B Total Commitments,  the Facility C Total
     Commitments and the Facility D Total Commitments;

     "Transfer Certificate"

     has the meaning given to it in Clause 29.3 (Procedure for transfers);

     "Transmission Business"

     has the meaning given to it in the relevant Transmission Licence;

     "Transmission Licence"

     means a licence granted under Section 6(l)(b) of the Electricity Act;

     "United Kingdom"

     means the United Kingdom of Great Britain and Northern Ireland;

     "United States"

     means the United States of America;

     "U.S. Borrower"

     means a Borrower incorporated in the United States;

     "U.S. Code"

     means the United States  Internal  Revenue Code of 1986, as amended and any
     rule or regulation issued thereunder from time to time in effect;

     "Utilisation"

     means a utilisation of any of the Facilities  pursuant to the terms of this
     Agreement and includes:

     (a)  in the case of a  Utilisation  comprising  Advances,  all the Advances
          made or to be made therein; or

     (b)  in the case of a Utilisation  comprising Bills, all the Bills accepted
          or to be accepted therein;

                                      -24-
<PAGE>

     "Utilisation Date"

     means:

     (a)  in the case of a  Utilisation  comprising  Advances,  the date for the
          making of the relevant Advances; and

     (b)  in the  case of a  Utilisation  comprising  Bills,  the  date  for the
          acceptance of the relevant Bills;

     "Utilisation Request"

     means a notice  substantially  in the form set out in  Schedule  4 (Form of
     Utilisation Request/Interest Period Selection Notice); and

     "Year 2000 Strategy"

     means a programme  designed to ensure that the  occurrence of the year 2000
     will not affect the  capacity  of any  computer  system,  software or other
     equipment  owned or used by any  Obligor  or  member  of the  Group (or any
     system  with which the  computer  system,  software or other  equipment  is
     interfaced)  which is  critical to the  business  of the Group  (taken as a
     whole)  or, in the case of NG  Company  the NG  Company  Group  (taken as a
     whole), to perform any function capable of being performed by that computer
     system,  software  or other  equipment  prior to the year 2000,  correctly,
     efficiently  and without  interruption  (and all steps and related  actions
     necessary to implement that programme).

1.2  Construction

(a)  In this Agreement, unless the contrary intention appears, any reference to:

     (i)  an   "amendment"   includes   a   supplement,   variation,   novation,
          re-enactment or a waiver;

          "assets" includes present and future  properties,  revenues and rights
          of every description;

          an  "authorisation"  includes  an  authorisation,  consent,  approval,
          resolution, licence, exemption, filing, registration and notarisation;

          "Barclays Capital" is a reference to Barclays Capital,  the investment
          banking division of Barclays Bank PLC;

          "indebtedness"  shall be construed so as to include any obligation for
          the payment or repayment of money,  whether present or future,  actual
          or contingent and whether incurred as principal or surety;

          a "month" is a reference to a period starting on one day in a calendar
          month and  ending  on the  numerically  corresponding  day in the next
          calendar month, except that:

                                      -25-
<PAGE>

          (1)  if the numerically  corresponding day is not a Business Day, that
               period shall end on the next Business Day in that calendar  month
               (if  there is one) or the  preceding  Business  Day (if  there is
               not); or

          (2)  if  there is no  numerically  corresponding  day in the  month in
               which  that  period  ends,  that  period  shall  end on the  last
               Business Day in that calendar month;

          a "principal  amount" in relation to a Bill is a reference to the face
          amount of that Bill;

          a  "person"   includes   any   individual,   company,   unincorporated
          association or body or persons (including a partnership, joint venture
          or consortium),  government, state, agency, international organisation
          or other entity;

          a "regulation"  includes any  regulation,  rule,  official  directive,
          request or guideline  (whether or not having the force of law, but, if
          not having the force of law,  being one with which the relevant  Party
          is accustomed to comply) of any governmental body, agency,  department
          or regulatory, self-regulatory or other authority or organisation;

     (ii) a provision  of a law is a reference  to that  provision as amended or
          re-enacted;

    (iii) the terms  "Director"  and  "Secretary of State" shall be construed as
          references to those terms as used in the Electricity Act;

     (iv) a Clause or a Schedule is a reference  to a clause of or a schedule to
          this Agreement;

      (v) a person includes its successors, transferees and assigns;

     (vi) a Finance  Document or another document is a reference to that Finance
          Document or that other document as amended;

    (vii) a time of day is a reference to London time; and

   (viii) "Sterling"  and  "(pound)" and "Dollars" and "US$" denote the lawful
          currencies  for the time being of the United  Kingdom of Great Britain
          and Northern Ireland and the United States of America respectively.

(b)  Unless the contrary  intention  appears,  a term used in any other  Finance
     Document  or in any notice  given under or in  connection  with any Finance
     Document has the same meaning in that Finance Document or notice as in this
     Agreement.

(c)  The index and headings in this Agreement are for  convenience  only and are
     to be ignored in construing this Agreement.

2.   THE FACILITIES

2.1  The Facilities

                                      -26-
<PAGE>

     Subject  to the  terms  and  conditions  hereof,  the  Banks  grant  to the
     Borrowers the following facilities:

     (a)  a committed Dollar term loan facility,  to be designated as Facility A
          under which the Banks will,  when  requested by NGG or any  Additional
          Borrower,  make cash  advances  in Dollars  to NGG or that  Additional
          Borrower during the Facility A Availability Period;

     (b)  a  committed  Dollar  denominated   multi-currency   revolving  credit
          facility,  to be designated as Facility B, under which the Banks will,
          when requested by NGG or any Additional  Borrower,  make cash advances
          in  Dollars  or in  Optional  Currencies  to  NGG or  that  Additional
          Borrower  on a  revolving  basis  during the  Facility B  Availability
          Period;

     (c)  a committed 364 day revolving Dollar credit  facility,  with an option
          to draw Term-out Advances, to be designated as Facility C, under which
          the Banks shall,  when  requested by NGG or any  Additional  Borrower,
          make cash advances in Dollars to NGG or that Additional  Borrower on a
          revolving basis during the Facility C Availability Period; and

     (d)  a  committed  Sterling  denominated  multi-currency  revolving  credit
          facility,  to be designated as Facility D, under which the Banks will,
          when  requested  by NG  Company,  make cash  advances  in  Sterling or
          Optional  Currencies  to (or  accept  Bills in  Sterling  drawn by) NG
          Company  on a  revolving  basis  during the  Facility  D  Availability
          Period.

2.2  Overall Facilities limit and sub-limit

(a)  No  Utilisation  shall be made if it would  cause  the  aggregate  Original
     Dollar Amount of all outstanding Advances:

     (i)  under Facility A, to exceed the Facility A Total Commitments; or

     (ii) under Facility B to exceed the Facility B Total Commitments; or

     (iii) under Facility C, to exceed the Facility C Total Commitments.

(b)  No  Utilisation  shall be made if it would  cause  the  aggregate  Original
     Sterling Amount of all outstanding Utilisations under Facility D, to exceed
     the Facility D Total Commitments.

2.3  Bank limits

(a)  A Bank  shall not be  obliged to make an Advance or accept a Bill under any
     Facility if it would cause the total amount  outstanding  and owing to that
     Bank  under  that  Facility  to exceed  its  Commitment  in respect of that
     Facility.

(b)  For the purposes of this Clause 2.3, the "total  amount  outstanding"  of a
     Bank under any Facility on any Utilisation  Date is the aggregate  Original
     Dollar Amount or aggregate  Original Sterling Amount (as applicable) of all
     Advances and Bills made or accepted by that Bank under that Facility  which
     would be outstanding on that Utilisation Date if:

                                      -27-
<PAGE>

     (i)  all outstanding  Utilisations  having Maturity Dates or Final Maturity
          Dates  which  fall on or before  that  Utilisation  Date are repaid or
          paid; and

    (ii)  all  Utilisations to be made on or before that Utilisation Date and in
          respect of which a Utilisation  Request has been received by the Agent
          are made.

(c)  If the  operation  of Clause 5.6 (Amount of each Bank's  Advance) or Clause
     6.3  (Amount of Bills to be  accepted  by each Bank)  would cause the total
     amount outstanding of a Bank (the "affected Bank") to exceed its Commitment
     in respect of any Facility then:

     (i)  the affected Bank will participate in the relevant  Utilisation to the
          extent  that  its  total  amount   outstanding  does  not  exceed  its
          Commitment in respect of the relevant Facility; and

    (ii)  the  amount of the  Advance  to be made,  or the  aggregate  principal
          amount of Bills to be accepted,  by each other Bank under the relevant
          Clause will be  re-calculated  in accordance with that Clause but, for
          the purpose of the  recalculation,  the affected Bank's  Commitment in
          respect  of the  relevant  Facility  will be  deducted  from the Total
          Commitments in respect of the relevant  Facility and the amount of the
          affected  Bank's  Advance or Bills (if any) will be deducted  from the
          Requested Amount; and

   (iii)  the  calculation  in paragraph  (c)(ii)  above will be applied to each
          Bank  in  turn  until  the  amount  of its  Advance  or the  aggregate
          principal  amount of Bills to be  accepted  by it under that Clause is
          determined.

2.4  Availability, number of Utilisation Requests and Utilisations

(a)  No  Utilisation  may be made at any time after the date one month  prior to
     the applicable Final Maturity Date.

(b)  No Utilisation Request may specify a Utilisation Date which is within three
     Business  Days of another  Utilisation  Date  (unless the  Utilisation  the
     subject  of  that   Utilisation   Request  is  to   refinance  an  existing
     Utilisation).

(c)  No more than one  Utilisation  Request may be  delivered on any one day but
     that Utilisation Request may subject to Clause 5 (Availability of Advances)
     specify any number and type of  Utilisations  from  Facility A, Facility B,
     Facility C, Facility D or all of them.

(d)  Except  during  the  Primary   Syndication   Period,   no   Utilisation  or
     Utilisations  with the same Interest  Date(s) and/or Maturity Date(s) other
     than the applicable  Final Maturity Date (or other earlier date as has been
     notified for cancellation of the Facilities) may have an aggregate Original
     Dollar Amount exceeding US$2,000,000,000.

(e)  Unless the Agent  agrees  otherwise,  no more than 20  Utilisations  may be
     outstanding  at any one  time  (taking  all  Facilities  together  for this
     purpose).

                                      -28-
<PAGE>

2.5  Primary Syndication Period

(a)  Subject to paragraph (b) below, but otherwise notwithstanding any provision
     of this  Agreement,  no  Borrower  will  deliver a  Utilisation  Request or
     Interest  Period  Selection  Notice during the Primary  Syndication  Period
     specifying a Term or an Interest Period other than one, two or three weeks.

(b)  Except as the Agent (after  consultation  with the  Arrangers)  and NGG may
     otherwise  agree,  each Interest  Period  Selection  Notice or  Utilisation
     Request  delivered during the Primary  Syndication  Period shall specify an
     Interest Period or Term ending on the same date as each other Advance to be
     drawn or  rolled  over on the same date and,  if there  are  Advances  then
     outstanding, ending on the same date as such other Advances.

(c)  No Borrower may request a Utilisation  comprising  Bills during the Primary
     Syndication Period.

2.6  Nature of each Finance Party's rights and obligations

(a)  The  obligations  of each  Finance  Party under the Finance  Documents  are
     several.

(b)  The  failure  of a Finance  Party to carry out those  obligations  does not
     relieve any other Party of its obligations  under the Finance Documents and
     no Finance Party is  responsible  for the  obligations of any other Finance
     Party under the Finance Documents.

(c)  The rights of a Finance  Party  under the  Finance  Documents  are  divided
     rights and a Finance Party may,  except as otherwise  stated in the Finance
     Documents, separately enforce those rights.

2.7  Borrowers' Agent

(a)  Subject to paragraph (b) below,  each Obligor  irrevocably  authorises  and
     instructs NGG as the  Borrowers'  agent to give and receive as agent on its
     behalf all notices (including  Utilisation Requests) and sign all documents
     in connection with the Finance  Documents on its behalf and take such other
     action as may be  necessary or desirable  under or in  connection  with the
     Finance Documents and confirms that it will be bound by any action taken by
     NGG as the  Borrowers'  agent  under  or in  connection  with  the  Finance
     Documents.

(b)  On the  first day after  the date of this  Agreement  on which  there is no
     amount  outstanding  under  Facility  A,  Facility  B or  Facility C and no
     Facility A Commitment, Facility B or Facility C Commitment is in force, and
     any amount is outstanding  under Facility D or any Facility D Commitment is
     in force:

     (i)  NG Company shall  automatically  replace NGG as the Borrowers'  agent,
          and each Obligor  irrevocably  authorises  and instructs NG Company as
          the  Borrowers'  agent in such  circumstances,  to give and receive as
          agent on its behalf all notices (including  Utilisation  Requests) and
          sign all  documents in  connection  with the Finance  Documents on its
          behalf and take such other  action as may be  necessary  or  desirable
          under or in connection with the Finance Documents;

                                      -29-
<PAGE>

    (ii)  each Obligor  confirms that it will in such  circumstances be bound by
          any action  taken by NG Company as the  Borrowers'  agent  under or in
          connection with the Finance Documents; and

   (iii)  each  reference in this  Agreement to NGG acting in such capacity will
          as from such date be deemed to refer to NG  Company in place of NGG as
          the context requires.

2.8  Actions of Borrowers' Agent

     The  respective  liabilities  of each of the  Obligors  under  the  Finance
     Documents shall not be in any way affected by:

     (a)  any irregularity (or purported irregularity) in any act done by or any
          failure (or purported failure) by NGG or NG Company;

     (i)  NGG or NG Company acting (or purporting to act) in any respect outside
          any authority conferred upon it by any Obligor; or

     (1)  the  failure (or  purported  failure) by or  inability  (or  purported
          inability) of NGG or NG Company to inform any Obligor of receipt by it
          of any notification under this Agreement.

3.   PURPOSE

3.1  Use of proceeds

     Each Borrower shall apply each Utilisation made by it:

     (a)  under  Facility  A, in or towards  financing  or  refinancing  the EUA
          Acquisition  (plus  related  fees,  costs and  expenses),  refinancing
          existing  borrowings of EUA and its  Subsidiaries  and for the general
          corporate purposes of the Group;

     (b)  under Facility B to meet the general  corporate  purposes of the Group
          including the financing of  acquisitions,  the refinancing of existing
          borrowings and general working capital;

     (c)  under Facility C, in or towards  financing the NEES Acquisition  (plus
          related fees, costs and expenses) and refinancing  existing borrowings
          of the NEES Group; and

     (d)  under Facility D, to meet the general corporate purposes of NG Company
          and its  Subsidiaries  and for general working capital  purposes of NG
          Company and its Subsidiaries.

3.2  No enquiry

     Without  affecting  the  obligations  of any  Obligor in any way no Finance
     Party is bound to monitor or verify the  application of the proceeds of any
     Utilisation.

                                      -30-
<PAGE>

4.   CONDITIONS PRECEDENT

4.1  Documentary conditions precedent

     The  obligations  of each Finance Party to any Obligor under this Agreement
     are subject to the condition  precedent that the Agent has notified NGG and
     the Banks that it has  received all of the  documents  set out in Part I of
     Schedule  2  (Conditions   Precedent   Documents)  in  form  and  substance
     satisfactory to the Agent.

4.2  Further condition precedent to Facility A and Facility C

(a)  Subject to paragraph (b) below,  the  obligations  of each Finance Party to
     participate in any  Utilisation  under Facility A or Facility C are subject
     to the further condition  precedent that the Agent has notified NGG and the
     Banks  that  it has  received  all of the  documents  set out in Part II to
     Schedule  2  (Conditions   Precedent   Documents)  in  form  and  substance
     satisfactory to the Agent.

(b)  Where the further condition precedent referred to in paragraph (a) above is
     not met on or before  the date that is 30 days  prior to the  expiry of the
     Facility C Availability Period then applicable to any Banks then NGG or any
     Additional Borrower may nonetheless exercise its option under paragraph (b)
     of Clause 8.3 (Repayment of Facility C Advances) to draw Term-out  Advances
     from those Banks. NGG will ensure that the proceeds of any Term-out Advance
     drawn in accordance with this paragraph:

     (i)  will be kept separate from other assets of the relevant Borrower; and

     (ii) will be  invested  only in  accordance  with the  Approved  Investment
          Guidelines  set out in Schedule 11 (Approved  Investment  Guidelines),
          and are not used for any other purpose,

     until such time as the  condition  precedent set out in paragraph (a) above
     is satisfied or waived by the Majority Banks.  Without limiting Clause 20.3
     (Information  -  Miscellaneous)  NGG will  supply to the Agent on a monthly
     basis a report on, and such other  information  as the Agent may reasonably
     request  in  relation  to,  the  manner  in  which  any  proceeds  drawn in
     accordance with this paragraph (b) have been or are to be invested.

4.3  Further conditions precedent generally

     The obligations of each Bank to participate in a Utilisation are subject to
     the further  conditions  precedent  that on both the  relevant  date of the
     Utilisation Request and the Utilisation Date:

     (a)  the representations  and warranties in Clause 19 (Representations  and
          Warranties)  to be  repeated  on those  dates are  correct and will be
          correct in all material  respects  immediately  after the Utilisation;
          and

     (b)  no  Default  is  outstanding  or would  result  from  the  Utilisation
          (provided that where no notice has been given pursuant to Clause 21.18
          (Acceleration) but a Default is outstanding each Bank shall be obliged
          to participate in a Utilisation,  to the extent  required by the terms
          hereof, where such Utilisation is in the same currency as and is in an
          amount equal to or less than an  outstanding  Utilisation  which is to
          mature on the Utilisation Date for the

                                      -31-
<PAGE>

          proposed  Utilisation and is to be applied on such Utilisation Date in
          repaying such outstanding Utilisation).

4.4  NG Company Conditionality

     Clause  4.3  (Further  conditions   precedent   generally)  will  apply  to
     Utilisations  by NG Company as if references in Clause 19  (Representations
     and   Warranties)  and  Clause  21  (Default)  to  NGG  (or  any  Obligor),
     Subsidiaries,  Principal  Subsidiaries,  Regulated U.S. Subsidiaries or the
     Group, were references only to NG Company, Regulated UK Subsidiaries or the
     NG Company Group, as the case may be.

5.   AVAILABILITY OF ADVANCES

5.1  Receipt of Utilisation Requests

     The Borrowers may borrow Advances if the Agent receives, not later than the
     Relevant Time, a duly completed Utilisation Request provided that:

     (a)  only  NGG or an  Additional  Borrower  shall  be  entitled  to  borrow
          Advances under Facilities A, B and C; and

     (b)  only NG Company shall be entitled to make Utilisations  under Facility
          D; and

     (c)  NG Company shall not be entitled to borrow Advances under any Facility
          other than Facility D.

5.2  Form of Utilisation Request for Facility A Advances

     A  Utilisation  Request  for a Facility A Advance  will not be  regarded as
     having been duly completed unless:

     (a)  the proposed  Utilisation Date is a Business Day during the Facility A
          Availability Period;

     (b)  the Requested Amount for each separate Utilisation comprising Facility
          A Advances is in a minimum  Original  Dollar Amount of  US$100,000,000
          and an integral  multiple of US$10,000,000 or such other amount as the
          relevant  Borrower and the Agent may agree before the delivery of that
          Utilisation  Request and the currency of each  Utilisation  comprising
          Facility A Advances is Dollars;

     (c)  only one  Interest  Period for each  separate  Utilisation  comprising
          Facility A Advances is specified which:

          (i)  does not overrun the Final Maturity Date; and

          (ii) subject to Clause 2.5 (Primary  Syndication  Period), is a period
               of 1, 2, 3 or 6 months (or, in any case, such other period as all
               the Banks may  previously  have  agreed for the  purposes of such
               Advances); and

                                      -32-
<PAGE>

     (d)  the payment instructions comply with Clause 12 (Payments).

5.3  Form of Utilisation Request for Facility B Advances

     A  Utilisation  Request  for a Facility B Advance  will not be  regarded as
     having been duly completed unless:

     (a)  the proposed  Utilisation Date is a Business Day during the Facility B
          Availability Period;

     (b)  only  one  currency  is  specified  for  each   separate   Utilisation
          comprising  Facility  B  Advances  and the  Requested  Amount  is in a
          minimum  Original  Dollar  Amount  of  US$25,000,000  and an  integral
          multiple of US$5,000,000 or an integral multiple of the amounts in the
          relevant Optional Currency agreed between the relevant  Borrower,  NGG
          and the Agent before the delivery of the relevant  Utilisation Request
          (or such other amount as the relevant Borrower,  NGG and the Agent may
          agree before the delivery of that Utilisation Request);

     (c)  only one Term for each  separate  Utilisation  comprising  Facility  B
          Advances is specified which:

          (i)  does not extend beyond the Final Maturity Date; and

          (ii) subject to Clause 2.5 (Primary Syndication Period) is a period of
               1, 2, 3 or 6 months or,  such  other  period as all the Banks may
               previously have agreed for the purposes of such Advances; and

     (d)  the payment instructions comply with Clause 12 (Payments).

5.4  Form of Utilisation Request for Facility C Advances

     A  Utilisation  Request  for a Facility C Advance  will not be  regarded as
     having been duly completed unless:

     (a)  the proposed  Utilisation Date is a Business Day during the applicable
          Facility C Availability Period;

     (b)  in the case of a Term-out  Advance,  the Utilisation  Request requests
          Advances  from all those  Banks  (but not some only) with a Facility C
          Availability Period expiring on the same day;

     (c)  the Requested Amount for each separate Utilisation comprising Facility
          C Advances is in a minimum  Original  Dollar Amount of  US$100,000,000
          and an integral multiple of US$10,000,000 (or such other amount as NGG
          and the  Agent may  agree  before  the  delivery  of that  Utilisation
          Request) and the currency of each  Utilisation  comprising  Facility C
          Advances is Dollars;

                                      -33-
<PAGE>

     (d)  only one  Term or,  in the case of  Term-out  Advances,  one  Interest
          Period  and  Final  Maturity  Date,  for  each  separate   Utilisation
          comprising Facility C Advances is specified which:

          (i)  does  not   extend   beyond  the  then   applicable   Facility  C
               Availability   Period   (other  than  in  the  case  of  Term-out
               Advances); and

          (ii) subject to Clause 2.5 (Primary  Syndication  Period), is a period
               of 1, 2, 3 or 6 months (or, in any case, such other period as all
               the Banks may  previously  have  agreed for the  purposes of such
               Advances);

     (e)  the payment instructions comply with Clause 12 (Payments); and

     (f)  in the case of a Term-out  Advance,  the proposed  Final Maturity Date
          (which must be the same date for all  Term-out  Advances  drawn on the
          same date) is a date  after the  applicable  Facility  C  Availability
          Period but no later than the third Anniversary.

5.5  Form of Utilisation Request for Facility D Advances

     A  Utilisation  Request  for a Facility D Advance  will not be  regarded as
     having been duly completed unless:

     (a)  the  Borrower is NG Company  and the  proposed  Utilisation  Date is a
          Business Day during the Facility D Availability Period;

     (b)  only  one  currency  is  specified  for  each   separate   Utilisation
          comprising  Facility  D  Advances  and the  Requested  Amount  is in a
          minimum Original Sterling Amount of (pound)25,000,000  and an integral
          multiple of (pound)5,000,000 or an integral multiple of the amounts in
          the relevant Optional Currency agreed between NG Company and the Agent
          before the delivery of the relevant Utilisation Request (or such other
          amount as NG Company  and the Agent may agree  before the  delivery of
          that Utilisation Request);

     (c)  only one Term for each  separate  Utilisation  comprising  Facility  D
          Advances is specified which:

          (i)  does not extend beyond the Final Maturity Date; and

          (ii) subject to Clause 2.5 (Primary  Syndication  Period), is a period
               of 1, 2, 3 or 6 months or such other  period as all the Banks may
               previously have agreed for the purposes of such Advances; and

     (d)  the payment instructions comply with Clause 12 (Payments).

                                      -34-
<PAGE>

5.6  Amount of each Bank's Advance

     The amount of each Bank's  Advance will be the  proportion of the Requested
     Amount which its  Commitment in respect of the relevant  Facility  bears to
     the aggregate  Commitments  of all Banks in respect of that Facility on the
     date  of  receipt  of  the  relevant  Utilisation  Request,   adjusted,  if
     necessary, to reflect the operation of Clause 2.3 (Bank limits).

5.7  Notification to Banks

     The Agent shall, not later than the Relevant Time,  notify each Bank of the
     details of the requested  Advances and the aggregate  amount of Advances to
     be made by that Bank.

5.8  Selection of an optional duration

(a)  If a  Borrower  requests  an  Interest  Period  or a Term in a  Utilisation
     Request other than 1, 2, 3 or 6 months,  it may also select in the relevant
     Utilisation Request an alternative  Interest Period or Term of 1, 2, 3 or 6
     months to apply and paragraph (b) below shall apply.

(b)  If:

     (i)  a Borrower requests an Interest Period or a Term other than 1, 2, 3 or
          6 months; and

     (ii) the Agent receives notice from a Bank not later than the Relevant Time
          stating that it does not agree to such request,

     then the Interest Period or Term for the proposed Utilisation shall instead
     be the alternative period specified in the relevant Utilisation Request or,
     in the absence of any alternative selection, 3 months.

(c)  If the Agent receives a notice from a Bank under paragraph (b)(ii) above it
     shall notify the Borrower and the Banks of the revised  Interest  Period or
     Term for the proposed Advances not later than the Relevant Time.

5.9  Payment of Proceeds

     Subject to the terms of this  Agreement,  each Bank shall make its  Advance
     available to the Agent for the relevant  Borrower for value on the relevant
     Utilisation Date.

5.10 Extension of Facility C Availability Period

     NGG may,  not  earlier  than 60 days nor  later  than 30 days  prior to the
     original  expiry date of the  Facility C  Availability  Period,  request by
     notice to the Agent (who will promptly  notify the Banks) that the Facility
     C  Availability  Period be  extended  to a date which is not later than 364
     days after the  original  expiry date (the  "Extended  Date").  If any Bank
     notifies  the Agent  that it agrees to extend the  Facility C  Availability
     Period,  then the  Facility  C  Availability  Period  will be  extended  in
     relation to that Bank  accordingly,  whether or not any other Bank extends.
     No Bank is under any  obligation  of any kind to agree to NGG's  request to
     extend and any Bank which  fails to  respond or reply  within the  required
     period will be deemed to have declined to extend.

                                      -35-
<PAGE>

6.   AVAILABILITY OF THE BILL FACILITY

6.1  Receipt of Requests

     NG Company may utilise the Bill Facility if the Agent  receives,  not later
     than the Relevant Time, a duly completed Utilisation Request.

6.2  Form of Utilisation Request

     A Utilisation  Request in respect of the Bill Facility will not be regarded
     as being duly completed unless:

     (a)  the proposed  Utilisation Date is a Business Day during the Facility D
          Availability Period;

     (b)  the Requested Amount is a minimum of (pound)25,000,000 and an integral
          multiple of  (pound)5,000,000  (or such other  amount as the Agent and
          NGG may agree);

     (c)  only one Tenor is specified which:

          (i)  does not extend beyond the Final Maturity Date; and

          (ii) is a period of between 7 and 187 days; and

     (d)  the payment instructions comply with Clause 12 (Payments).

6.3  Amount of Bills to be accepted by each Bank

     The aggregate  principal  amount of the Bills to be accepted by a Bank will
     be that proportion of the Requested  Amount which its Facility D Commitment
     bears to the  Facility  D Total  Commitments  on the date of receipt of the
     relevant  Utilisation  Request (as adjusted,  if necessary,  to reflect the
     operation  of Clause  2.3 (Bank  limits)  and Clause  7.2  (Completion  and
     Rounding of principal amount of Bills)).

6.4  Notification to Banks

(a)  The Agent shall, not later than the Relevant Time,  notify each Bank of the
     details of the requested  Bills and the aggregate  principal  amount of the
     Bills to be accepted by that Bank.

(b)  If a Bank,  having  received notice as contemplated in paragraph (a) above,
     so determines,  it may notify the Agent,  not later than the Relevant Time,
     that it does not wish the Agent to arrange for the discounting of the Bills
     in question.

6.5  Advances as an alternative

(a)  Notwithstanding  the delivery of a Utilisation Request in respect of Bills,
     if a Bank does not wish to accept  any Bills for any  reason or if the Bank
     is not an  Eligible  Bank,  then it  shall  notify  the  Agent  accordingly
     (provided  that if a Bank is not or ceases to be an Eligible  Bank it shall
     only be required
                                      -36-
<PAGE>

     to give such a notice once,  following which notice this Clause shall apply
     until further notice in writing is given from the Bank).

(b)  If a Bank so notifies the Agent that it is unwilling to accept any Bills or
     is not an Eligible Bank, then, subject to the terms of this Agreement,  the
     Bank shall  instead make a Facility D Advance in  accordance  with Clause 5
     (Availability of Advances) in Sterling on the relevant  Utilisation Date in
     a principal  amount equal to the  aggregate  principal  amount of the Bills
     which it would  otherwise  have been  obliged  to accept  pursuant  to this
     Clause and for a Term equal to the Tenor of those Bills.

6.6  Bills

     Subject to the provisions of Clause 6.5 (Advances as an alternative):

     (a)  each  Bank  shall  accept  Bills  in the  aggregate  principal  amount
          notified to it by the Agent  pursuant to Clause 6.4  (Notification  to
          Banks);

     (b)  the Agent shall, not later than the Relevant Time, notify the Borrower
          and each Bank  which is  discounting  Bills  itself of the  applicable
          EBDR;

     (c)  subject to the terms of this Agreement, each Bank which is discounting
          Bills  itself  shall pay to the Agent for the Borrower an amount equal
          to:

          (i)  the amount which the Bank would have  received as the proceeds of
               discounting  if it had discounted the Bills accepted by it at the
               applicable EBDR; less

          (ii) acceptance  commission  calculated at the  Acceptance  Commission
               Rate on the aggregate principal amount of those Bills.

6.7  Acceptance of Bills

     If the Agent notifies any Bank in accordance with Clause 6.4  (Notification
     to Banks)  that it is to accept  any Bills (and such Bank does not elect to
     make an Advance pursuant to Clause 6.5 (Advances as an  alternative)),  the
     Agent  shall,  by the  Relevant  Time,  deliver  to such Bank  Bills in the
     requisite  amount duly drawn by the Borrower whose Bills are to be accepted
     and duly  completed on behalf of such Borrower in accordance  with Clause 7
     (Bills).  Such Bank shall endorse and accept such Bills and shall,  subject
     to Clause  6.10  (Discounting  by  Banks),  lodge  the same at the  Agent's
     account at the Central  Moneymarkets  Office at the Bank of England at such
     Bank's own risk by the Relevant Time or,  alternatively,  act in accordance
     with such other  instructions  as may be given by the Agent on the relevant
     Utilisation Date.

6.8  Purchase or Discounting of Bills by Agent

     If, on the proposed Utilisation Date relating to any Bills:

     (a)  Sterling bills of exchange drawn on and accepted by Eligible Banks can
          then be discounted in the London discount market; and

                                      -37-
<PAGE>

     (b)  the Agent has been able to determine the EBDR applicable thereto,

     the Agent  shall,  subject to this Clause 6.8 and Clause 6.9  (Transfer  to
     Banks),  either offer such Bills for discount in the London discount market
     at the EBDR for such Utilisation Date or, at the Agent's discretion, elect,
     no later than the Relevant Time, to purchase such Bills as principal for an
     amount equal to the amount which it would have received had it arranged for
     the discounting of such Bills at such EBDR. The Agent will notify such EBDR
     by no later than the Relevant  Time to the  Borrower  whose Bills are being
     accepted and each Bank which is to discount  Bills  pursuant to Clauses 6.9
     (Transfer  to Banks) or 6.10  (Discounting  by Banks).  If, on any proposed
     Utilisation  Date,  the  conditions  set forth in this Clause have not been
     complied  with,  then the  proposed  Utilisation  shall not be made and any
     Bills accepted by the Banks in respect of such proposed  Utilisation  shall
     be  cancelled  and the  respective  obligations  of the parties in relation
     thereto shall be terminated.

6.9  Transfer to Banks

     If, on any occasion, the Agent does not exercise its discretion to purchase
     any or all of the Bills  accepted  by any Bank and it is unable to  arrange
     for such Bills to be discounted in the London  discount market at the EBDR,
     it shall promptly  notify such Bank to such effect and with an accompanying
     notice to such Bank,  it will instruct the Central  Moneymarkets  Office at
     the Bank of England to  transfer  such Bills to the account of such Bank or
     such Bank's Agent and return such Bills to such Bank, whereupon:

     (a)  such Bank shall itself discount or arrange for the discounting of such
          Bills and such Bills shall be deemed to have been so discounted at the
          EBDR  notified  by the Agent  pursuant  to Clause 6.7  (Acceptance  of
          Bills)  (whether or not such Bank is able so to discount  such Bills);
          and

     (b)  such Bank shall,  in  relation to such Bills,  pay to the Agent on the
          relevant  Utilisation  Date an amount  equal to the  amount  which the
          Agent  would  have  received  had the Agent  itself  arranged  for the
          discounting  of such  Bills at such  rate  (but  after  deducting  and
          retaining for its own account all acceptance commission payable by the
          relevant  Borrower to the Agent for the account of such Bank  pursuant
          to Clause 6.12 (Acceptance Commission)).

6.10 Discounting by Banks

     If, on any  occasion,  a Bank has  specified in a notice given by it to the
     Agent pursuant to paragraph (b) of Clause 6.4  (Notification to Banks) that
     it does not wish the Agent to arrange for the  discounting  of the Bills in
     question,  such Bank shall not return such Bills to the Agent in accordance
     with Clause 6.7  (Acceptance  of Bills) and if the  conditions set forth in
     Clause 6.8 (Purchase or  Discounting  of Bills by Agent) have been complied
     with:

     (a)  such  Bills  shall be deemed to have  been so  discounted  at the EBDR
          notified  pursuant to Clause 6.8 (Purchase or  Discounting of Bills by
          Agent)  (whether or not such Bank is able so to discount  such Bills);
          and

     (b)  such Bank shall,  in  relation to such Bills,  pay to the Agent on the
          relevant  Utilisation  Date an amount  equal to the  amount  which the
          Agent would have received had the Agent itself

                                      -38-
<PAGE>

          arranged  for the  discounting  of such  Bills at such EBDR (but after
          deducting and retaining for its own account all acceptance  commission
          payable by the relevant  Borrower to the Agent for the account of such
          Bank pursuant to Clause 6.12 (Acceptance Commission)).

6.11 Proceeds of Discounting

     The Agent  will  account  to the  relevant  Borrower  for all  proceeds  of
     discounting received by it pursuant to Clauses 6.8 (Purchase or Discounting
     of Bills by Agent), 6.9 (Transfer to Banks) and 6.10 (Discounting by Banks)
     and, if  applicable,  the purchase  price payable by the Agent as principal
     pursuant to Clause 6.8  (Purchase or  Discounting  of Bills by Agent),  but
     after deducting and paying to the Banks the acceptance  commission  payable
     to them pursuant to Clause 6.12 (Acceptance  Commission) (to the extent not
     already  deducted and retained by them  pursuant to Clause 6.9 (Transfer to
     Banks) or Clause 6.10 (Discounting by Banks)).

6.12 Acceptance Commission

     The relevant Borrower whose Bills are accepted  hereunder shall be obliged,
     on the day such Bills are accepted,  to pay to the Agent for the account of
     each Bank which accepts its Bills under Clause 6.7 (Acceptance of Bills) an
     acceptance  commission in Sterling at the applicable  Acceptance Commission
     Rate on the face amount thereof and for the Tenor thereof.

7.   BILLS

7.1  Holding and completion of Bills

(a)  NG Company  shall  ensure  that the Agent has a  sufficient  stock of blank
     signed  Bills  for   distribution  to  the  Banks  before   delivering  any
     Utilisation Request for a Utilisation comprising Bills.

(b)  Each Bill shall:

     (i)  have the drawee left blank and be endorsed by NG Company in blank;

     (ii) be undated;

     (iii) have the Maturity Date and the face amount left blank; and

     (iv) be  claused  in a manner  which  complies  with the Bank of  England's
          requirements for Eligible Bills at the time it is drawn.

7.2  Completion and Rounding of principal amount of Bills

(a)  NG Company hereby  irrevocably  authorises the Agent,  having regard to the
     proposed Utilisation and the provisions of this Agreement:

     (i)  to issue and complete Bills on its behalf by:

          (A)  signing  and dating  such Bills with the issue date and  Maturity
               Date;

                                      -39-
<PAGE>

          (B)  inserting the name of the relevant Bank as drawee; and

          (C)  inserting the face amount of each Bill; and

     (ii) to deliver the same to the Bank on which it is drawn for acceptance.

(b)  The  Agent  may round the  principal  amount  of the  relevant  Bills to be
     accepted by each Bank to ensure  that each Bill has a  principal  amount of
     not more than (pound)5,000,000.

7.3  Information relating to Bills

     NG Company  shall,  promptly on request by a Finance  Party,  supply to the
     Agent  for  that  Finance  Party  any  information  relating  to  any  Bill
     (including the underlying trade  transaction for that Bill) as that Finance
     Party  may  reasonably  require  or which  may be  required  by the Bank of
     England or any other fiscal or monetary authority in the United Kingdom.

7.4  Eligible Bills

     NG Company  shall  ensure that each Bill drawn by it and accepted by a Bank
     is eligible for  rediscounting  at the Bank of England  (assuming  that the
     relevant Bank is an Eligible Bank).

7.5  Custody of Bills

     The Agent and each Bank shall, as applicable:

     (a)  hold all uncompleted bills delivered to it under this Clause 7 in safe
          custody;

     (b)  advise NG Company, on request, of the number of uncompleted Bills held
          by it;

     (c)  cancel  any  blank  Bills  held by it on the Final  Maturity  Date and
          return them to NG Company as soon as practicable after that date; and

     (d)  not deal with any Bills  delivered  to it under this  Agreement  other
          than in accordance with the terms of this Agreement.

8.   REPAYMENT

8.1  Repayment of Facility A Advances

     Each  Borrower will repay the Facility A Advances made to it in full on the
     Final Maturity Date by payment to the Agent for the relevant Bank.

8.2  Repayment of Facility B Advance and Facility D Advance

     Each relevant Borrower will repay each Facility B Advance and each Facility
     D Advance made to it in full on its  Maturity  Date by payment to the Agent
     for the  relevant  Bank.  As Facility B and  Facility D are  available on a
     revolving basis, amounts repaid may be reborrowed subject to the

                                      -40-
<PAGE>

     terms of this Agreement. No Facility B Advance or Facility D Advance may be
     outstanding after the Final Maturity Date.

8.3  Repayment of Facility C Advances

(a)  Each  Borrower will repay each Facility C Advance made to it in full on its
     Maturity  Date or, in the case of a Term-out  Advance,  its Final  Maturity
     Date,  by  payment to the Agent for the  relevant  Bank.  As  Facility C is
     available on a revolving  basis during the Facility C Availability  Period,
     amounts  repaid  to a Bank may be  reborrowed  from that  Bank  during  the
     Facility C Availability Period applicable to that Bank subject to the terms
     of this Agreement.

(b)  At any time  prior to the  expiry of the  Facility  C  Availability  Period
     applicable to any Bank, any Borrower under Facility C may, by delivery of a
     duly completed  Utilisation  Request to the Agent (who shall send a copy to
     the Banks) elect to draw Term-out  Advances under Facility C from all those
     Banks (but not some only) with a Facility C Availability Period expiring on
     the same date  (pro  rata to their  Facility  C  Commitments)  with a Final
     Maturity Date after the applicable  Facility C  Availability  Period but no
     later than the third  Anniversary.  No  Term-out  Advance,  once  repaid or
     prepaid, may be reborrowed.  Only one Term-out Advance can be borrowed from
     each Bank and, upon  drawdown,  the undrawn  Facility C Commitment for that
     Bank (if any) will automatically be cancelled.

(c)  No Facility C Advance, other than a Term-out Advance, may be outstanding to
     a Bank after expiry of the Facility C Availability  Period then  applicable
     to that  Bank.  No  Term-out  Advance  may be  outstanding  after the third
     Anniversary.

8.4  Payment of Bills

     NG Company shall pay an amount equal to the  principal  amount of each Bill
     drawn by it on its  Maturity  Date by payment to the Agent for the relevant
     Bank.

9.   PREPAYMENT AND CANCELLATION

9.1  Automatic cancellation of Commitments

(a)  The  undrawn  Facility A  Commitment  of each Bank  shall be  automatically
     cancelled on the last day of the Facility A Availability Period.

(b)  The Facility B Commitment  and the Facility D Commitment of each Bank shall
     be  automatically  cancelled  at close of  business  on the last day of the
     Facility B  Availability  Period or  Facility  D  Availability  Period,  as
     applicable.

(c)  The  undrawn  Facility  C  Commitment  of each Bank  will be  automatically
     cancelled  on the last  day of the  Facility  C  Availability  Period  then
     applicable to that Bank.

9.2  Voluntary cancellation

(a)  NGG may, by giving not less than five  Business  Days' prior  notice to the
     Agent, cancel the unutilised portion of the Facility A Total Commitments in
     whole or in part (but, if in part, in a

                                      -41-
<PAGE>

     minimum   amount   of   US$100,000,000   and  an   integral   multiple   of
     US$10,000,000).  Any  cancellation  in part  shall be applied  against  the
     Facility A Commitment of each Bank pro rata.

(b)  NGG may, by giving not less than five  Business  Days' prior  notice to the
     Agent, cancel the unutilised portion of the Facility B Total Commitments in
     whole or in part (but, if in part, in a minimum amount of US$25,000,000 and
     in integral  multiples of US$5,000,000).  Any cancellation in part shall be
     applied against the Facility B Commitment of each Bank pro rata.

(c)  NGG may, by giving not less than five  Business  Days' prior  notice to the
     Agent, cancel the unutilised portion of the Facility C Total Commitments in
     whole or in part (but,  if in part, in a minimum  amount of  US$100,000,000
     and an integral multiple of US$10,000,000).  Any cancellation in part shall
     be applied against the Facility C Commitment of each Bank pro rata.

(d)  NG Company may, by giving not less than five Business Days' prior notice to
     the  Agent,   cancel  the  unutilised  portion  of  the  Facility  D  Total
     Commitments  in whole or in part (but, if in part,  in a minimum  amount of
     (pound)25,000,000  and  an  integral  multiple  of  (pound)5,000,000).  Any
     cancellation  in part shall be applied against the Facility D Commitment of
     each Bank pro rata.

9.3  Prepayment of Advances and early payment of Bills

(a)  Subject to Clause 26.2 (Other  Indemnities),  a Borrower may, by giving not
     less than five Business  Days' notice to the Agent,  prepay at any time the
     Advances  comprised  in any  Utilisation  made to it under any  Facility in
     whole or in part (but,  if in part,  in a minimum  amount  and an  integral
     multiple as follows:

     (i)  in respect  of a  Utilisation  under  Facility  A, a minimum  Original
          Dollar  Amount  of  US$100,000,000  and  an  integral  multiple  of an
          Original Dollar Amount of  US$10,000,000  (or such other amount as NGG
          and the Agent may agree before the delivery of the relevant  notice of
          prepayment);

    (ii)  in respect of a Utilisation under Facility B a minimum Original Dollar
          Amount of US$25,000,000 and an integral multiple of an Original Dollar
          Amount of US$5,000,000  or an integral  multiple of the amounts in the
          relevant Optional Currency agreed between NGG and the Agent before the
          delivery of that notice of prepayment (or such other amount as NGG and
          the Agent may agree before the delivery of that notice of prepayment);

   (iii)  in respect  of a  Utilisation  under  Facility  C, a minimum  Original
          Dollar  Amount  of  US$100,000,000  and  an  integral  multiple  of an
          Original Dollar Amount of  US$10,000,000  (or such other amount as NGG
          and the Agent may agree before the delivery of the relevant  notice of
          prepayment); and

    (iv)  in respect of a  Utilisation  under  Facility D (other  than by way of
          Bills), a minimum Original Sterling Amount of (pound)25,000,000 and an
          integral multiple of an Original  Sterling Amount of  (pound)5,000,000
          or an  integral  multiple  of the  amounts  in the  relevant  Optional
          Currency  agreed  between NG Company and the Agent before the delivery
          of the  relevant  notice of  prepayment  (or such  other  amount as NG
          Company and the Agent may agree  before the delivery of that notice of
          prepayment).

                                      -42-
<PAGE>

(b)  Any  voluntary  prepayment  made under  paragraph (a) above will be applied
     against all the Advances comprised in the relevant Utilisation(s).

(c)  NG Company may, by giving not less than five Business Days' prior notice to
     the  Agent,  prematurely  comply  with its  obligations  under  Clause  8.4
     (Payment of Bills).

9.4  Additional right of prepayment and cancellation

     Subject to Clause 26.2 (Other  Indemnities),  if any Obligor (the "affected
     Obligor")  is required to pay any amount to a Bank under  Clause 13 (Taxes)
     or Clause 15 (Increased  Costs),  NGG may, whilst the circumstances  giving
     rise  to the  requirement  continue,  serve  a  notice  of  prepayment  and
     cancellation  on that Bank  through  the Agent.  On the date  falling  five
     Business Days after the date of service of the notice:

     (a)  the affected Obligor shall prepay any Advances made to it by that Bank
          (together with all other amounts payable by it to that Bank under this
          Agreement);

     (b)  the affected  Obligor shall  immediately  perform its  obligations (if
          any) under Clause 8.4 (Payment of Bills) in respect of all outstanding
          Bills accepted by that Bank; and

     (c)  if NGG has so elected in the notice delivered  pursuant to this Clause
          9.4, that Bank's  Commitment shall be cancelled in full on the date of
          service of the notice.

9.5  Prepayment of Bills

     If, under the terms of this Agreement, NG Company prematurely complies with
     its obligations under Clause 8.4 (Payment of Bills) in respect of any Bill,
     then the  amount  payable by it shall be the  principal  amount of the Bill
     discounted on the basis of such normal  commercial  rates prevailing at the
     time of payment for  Sterling  deposits of an amount equal to the amount so
     paid for the period from the  Business Day after the time of payment to the
     Maturity Date of the Bill as the Agent shall reasonably determine.

9.6  Mandatory Prepayment and Cancellation on Change of Control

     If any single person,  or group of persons acting in concert (as defined in
     the City Code on Take- Overs and Mergers)  acquires  control (as defined in
     Section 416 of the Income and Corporation  Taxes Act 1988) of NGG, then the
     Agent may, and shall if so directed by the Majority  Banks,  within 90 days
     after the occurrence of such event by notice in writing to NGG:

     (a)  reduce the Total Facility A Commitments,  Total Facility B Commitments
          and Total  Facility C  Commitments  to the aggregate  Original  Dollar
          Amount of all outstanding  Utilisations  under those Facilities at the
          date of such notice and reduce the Total Facility D Commitments to the
          Aggregate  Original  Sterling Amount of all  outstanding  Utilisations
          under that Facility at the date of such notice; and/or

     (b)  declare that:

                                      -43-
<PAGE>

          (i)  the  Final  Maturity  Date for all  Facilities  shall be  brought
               forward to the date falling 30 days after the date of such notice
               whereupon  each reference in this Agreement to the Final Maturity
               Date  (and each  such  period)  shall be  amended  and  construed
               accordingly;

         (ii)  each Borrower's obligations under Clause 8 (Repayment) in respect
               of Advances and Bills outstanding on the date of such notice with
               Maturity Dates falling after the Final Maturity Date (as amended)
               shall be due and payable on the Final Maturity Date (as amended);
               and

        (iii)  on the Final  Maturity  Date (as amended)  the Total  Commitments
               shall be  cancelled  and all other  amounts  accrued or otherwise
               outstanding under this Agreement shall be due and payable.

9.7  Mandatory Prepayment from Significant Cash Disposals

(a)  NGG will notify the Agent not later than 60 Business Days after the date of
     receipt (a "Receipt  Date") by any member of the Group of any Net Available
     Proceeds from any  Significant  Cash  Disposals  specifying the amount (the
     "Sterling   Equivalent  Proceeds"  and,  in  respect  of  Significant  Cash
     Disposals to which paragraph (a)(ii) below applies,  the "Dollar Equivalent
     Proceeds")  of such  Net  Available  Proceeds  (notionally  converted  into
     Sterling  and/or  Dollars,  as  applicable,  at the  Agent's  Spot  Rate of
     Exchange two Business Days prior to the date of that notice) whereupon:

     (i)  in the case of any Significant Cash Disposal (other than a Significant
          Cash Disposal to which paragraph  (a)(ii) or paragraph  (a)(iii) below
          applies):

          (A)  an  amount  up to an  aggregate  amount  during  the  life of the
               Facilities  of  (pound)400,000,000  of  the  Sterling  Equivalent
               Proceeds of such  Significant  Cash  Disposals may be retained by
               the  Group  for use for  general  corporate  purposes  (so  that,
               accordingly,  any Net Cash Proceeds of Significant Cash Disposals
               applied in accordance with paragraph (b) below of this Clause 9.7
               will not count towards the (pound)400,000,000 amount); and

          (B)  thereafter,  an  amount  equal  to 50 per  cent.  of all  further
               Sterling  Equivalent  Proceeds  from  any such  Significant  Cash
               Disposal will be applied in mandatory  prepayment or reduction of
               the Facilities in accordance with the provisions of paragraph (b)
               below;

     (ii) in the case of any  Significant  Cash  Disposal  of all or any part of
          shares in or assets of the NEES Group (other than a  Significant  Cash
          Disposal to which paragraph (a)(iii) below applies):

          (A)  an  amount  up to an  aggregate  amount  during  the  life of the
               Facilities of US$50,000,000 of the Dollar Equivalent  Proceeds of
               such  Significant Cash Disposals may be retained by the Group for
               use for general corporate purposes; and

                                      -44-
<PAGE>

          (B)  thereafter  100  per  cent.  of  all  further  Dollar  Equivalent
               Proceeds from any such  Significant Cash Disposal will be applied
               in  mandatory  prepayment  or  reduction  of  the  Facilities  in
               accordance with the provisions of paragraph (b) below;

    (iii) in the case of any Significant  Cash Disposal by way or as part of the
          securitisation  of any assets of any member of the Group 100 per cent.
          of the Net Available Proceeds of such  securitisation  will be applied
          in mandatory  prepayment and reduction of the Facilities in accordance
          with paragraph (b) below.

(b)  Any  application by way of mandatory  prepayment  pursuant to paragraph (a)
     above shall be made within 90 days after the Receipt Date by application of
     an amount equal to the relevant portion of the Sterling Equivalent Proceeds
     or Dollar Equivalent Proceeds, and will be applied as follows:

     (i)  in the case of  Significant  Cash  Disposals  of assets  other than of
          assets of NG Company,  a Regulated UK  Subsidiary or any member of the
          NEES Group, in such proportions as NGG may elect:

          (A)  in permanent  reduction of Facility A Total  Commitments  and, to
               the extent  necessary,  in  permanent  prepayment  of  Facility A
               Advances;

          (B)  in permanent  reduction of Facility C Total  Commitments  and, to
               the extent  necessary,  in  permanent  prepayment  of  Facility C
               Advances; or

          (C)  in permanent prepayment of Term-out Advances; and

    (ii)  in the case of any Significant  Cash Disposals by NG Company or by any
          Regulated UK Subsidiary in permanent  reduction and  prepayment of any
          outstanding Financial  Indebtedness of NG Company or of such Regulated
          UK  Subsidiary,  as  the  case  may  be  which  was  not  incurred  in
          contemplation of the disposal; and

   (iii)  in the case of  Significant  Cash  Disposals by any member of the NEES
          Group:

          (A)  in  permanent   reduction  and  prepayment  of  any   outstanding
               Financial  Indebtedness of such member of the NEES Group required
               to be  repaid  as a result  of the  disposal  and  which  was not
               incurred in contemplation of the disposal; and

          (B)  thereafter, in accordance with paragraph (b)(i) above.

(c)  Where:

     (i)  a Borrower is not able to apply any of the Net Cash  Proceeds from any
          Significant Cash Disposal in mandatory  prepayment or reduction of the
          Facilities in accordance with paragraph (b) above within 90 days after
          the Receipt Date; or

    (ii)  a Borrower elects,  where so permitted by this Clause, to apply any of
          the Net Cash Proceeds  from a Significant  Cash Disposal in prepayment
          of any Financial  Indebtedness  of the Borrower  other than  Financial
          Indebtedness under this Agreement,

                                      -45-
<PAGE>

          then,  and for the purposes of paragraph  (c)(i) above until such time
          as those Net Cash Proceeds are so applied,

   (iii)  that will not,  in itself,  be an Event of Default  under this  Clause
          9.7; and

    (iv)  the Financial  Indebtedness  Limits set out in paragraph (d) of Clause
          20.15  (Restrictions  on Subsidiary  Financial  Indebtedness)  will be
          rateably  reduced by an amount  equivalent  to the amount of those Net
          Cash Proceeds to which paragraph (i) or (ii) above apply.

(d)  This  Clause  9.7 will  cease to apply on and  after  the date on which the
     Original Dollar Amount of the Total  Commitments  (whether or not drawn) is
     equal to or less than  US$1,250,000,000  (calculated  by  reference  to the
     Agent's Spot Rate of Exchange on the relevant date of calculation).

9.8  Mandatory  Cancellation  and Prepayment on Termination of NEES  Acquisition
     Agreement

     If the NEES  Acquisition  Agreement is terminated  for any reason the Total
     Facility A Commitments  and Total Facility C Commitments  will be deemed to
     be cancelled in full and permanently on the date of termination of the NEES
     Acquisition  Agreement and the relevant  Borrower  will promptly  repay all
     Term-out  Advances  drawn as at that  date on or before  the next  Interest
     Payment Date.

9.9  Mandatory Prepayment and Cancellation for Subsidiary Financial Indebtedness

     If,  at any  time  after  the  date  falling  six  months  after  the  NEES
     Acquisition  Completion  Date the level of Financial  Indebtedness to which
     paragraph  (d)  of  Clause  20.15  (Restrictions  on  Subsidiary  Financial
     Indebtedness)  applies incurred by any Subsidiaries to which  sub-paragraph
     (ii) of that Clause  applies,  exceeds  the  Financial  Indebtedness  Limit
     applicable from time to time to those  Subsidiaries then the Agent may, and
     will if so directed by the Majority Banks, by notice in writing to NGG:

     (a)  permanently  cancel and reduce the Total Facility A Commitments and/or
          the Total  Facility C Commitments  by an amount equal to the amount by
          which the Financial  Indebtedness  of those  Subsidiaries  exceeds the
          then applicable Financial Indebtedness Limit; and

     (b)  to the extent necessary to ensure that  outstandings do not exceed the
          relevant  Commitments as so reduced,  require the relevant Borrower to
          prepay  Facility A Advances  and/or Facility C Advances within 90 days
          of the date of that notice.

9.10 Miscellaneous provisions

(a)      Any notice of cancellation and/or prepayment under this Agreement shall
         be irrevocable and the Agent shall notify the Banks promptly of receipt
         of any such notice.

(b)      All  prepayments  under  this  Agreement  shall be made  together  with
         accrued  interest up to and  including  the date of  prepayment  on the
         amount  prepaid  and any other  amounts  due under  this  Agreement  in
         respect of that prepayment (including,  but not limited to, any amounts
         payable  under  Clause  26.2  (Other  Indemnities)  if not  made  on an
         Interest  Date or  Maturity  Date (as  appropriate)  in  respect of the
         relevant Advance(s) or Bill(s).

                                      -46-
<PAGE>

(c)  No  cancellation  or prepayment is permitted  except in accordance with the
     express terms of this Agreement.

(d)  Amounts  prepaid under this  Agreement in respect of Facility A Advances or
     Term-out Advances may not subsequently be re-borrowed.  Subject thereto and
     to the  terms of this  Agreement,  any  amount  prepaid  under  Clause  9.3
     (Prepayment of Advances and early payment of Bills) but not under any other
     provision of this Agreement may be reborrowed  under any other provision of
     this  Agreement.   Any  Commitment   cancelled  may  not   subsequently  be
     reinstated.

10.  INTEREST

10.1 Selection of Interest Periods for Facility A Advances and Term-out Advances

     The life of each Facility A Advance and of each Term-out Advance is divided
     into successive  periods (each an "Interest Period") for the calculation of
     interest. The first Interest Period of each such Advance will be the period
     selected in the  Utilisation  Request  for that  Advance.  Each  subsequent
     Interest Period will be the period selected by the relevant  Borrower in an
     Interest Period  Selection Notice received by the Agent not later than 4.30
     p.m. on the third Business Day before the end of the then current  Interest
     Period being,  subject to Clause 2.5 (Primary Syndication Period), 1, 2, 3,
     or 6 months or, in any case, such other period as the relevant Borrower and
     all the  Banks  may  agree  from  time to time or,  if no  notice  from the
     relevant Borrower (or NGG) is received by the Agent, one month.

10.2 Interest rate for all Advances

     The rate of interest  applicable  to each  Facility A Advance and  Term-out
     Advance for each of their Interest  Periods and to each Facility B Advance,
     Facility C Advance  (other than a Term-out  Advance) and Facility D Advance
     for each of their Terms is the rate per annum determined by the Agent to be
     the aggregate of:

     (i)  the Applicable Margin;

    (ii)  LIBOR; and

   (iii)  the Reserve Asset Costs.

10.3 Due dates

     Except as otherwise  provided in this Agreement,  accrued  interest on each
     Advance is payable by the relevant Borrower:

     (a)  in the case of a Facility A Advance  or a  Term-out  Advance,  on each
          Interest Date applicable to that Advance; and

     (b)  in the case of a Facility B Advance,  a Facility C Advance (other than
          a Term-out Advance) or a Facility D Advance, on its Maturity Date,

                                      -47-
<PAGE>

          and also, in the case of an Advance with an Interest  Period or a Term
          longer than 6 months,  at 6 monthly  intervals  after its  Utilisation
          Date for so long as the Interest Period or Term is outstanding.

10.4 Default interest

(a)  If an Obligor  fails to pay any amount  payable by it under this  Agreement
     (an  "overdue  amount"),  it shall  forthwith  on  demand  by the Agent pay
     default  interest on the overdue amount from the due date until the date of
     actual payment,  as well after as before judgment,  at a rate (the "default
     rate")  determined by the Agent to be 1 per cent.  per annum above the rate
     which would have been payable if the overdue amount had,  during the period
     of  non-payment,  constituted  a Facility A Advance in the  currency of the
     overdue  amount  for  such  successive  Interest  Periods  or Terms of such
     duration as the Agent may determine (each a "Default Term").

(b)  The default  rate will be  determined  on the first day of, or two Business
     Days before the first day of, the relevant Default Term, as appropriate.

(c)  If the Agent determines that deposits in the currency of the overdue amount
     are not at the relevant time being made available by the Reference Banks to
     leading  banks in the London  interbank  market,  the default  rate will be
     determined by reference to the cost of funds to the Agent from such sources
     as it reasonably may select.

(d)  Default interest will be compounded at the end of each Default Term.

10.5 Notification of rates of interest

     The Agent shall promptly notify each relevant Party of the determination of
     a rate of interest under this Agreement.

10.6 Applicable Margin and Acceptance Commission Rate

(a)  The Applicable Margin for a Facility A Advance,  a Facility B Advance and a
     Facility C Advance will be 0.575 per cent.  per annum,  unless  adjusted in
     accordance with this Clause 10.6.

(b)  The  Applicable  Margin  and  Acceptance  Commission  Rate for a Facility D
     Advance will be 0.525 per cent.  per annum,  unless  adjusted in accordance
     with this Clause 10.6.

(c)  If on the first day of an Interest  Period or Term  falling on or after the
     NEES Acquisition Completion Date:

     (i)  the long term senior  unsecured  credit rating  assigned to, or to any
          issue of or guaranteed by, NGG by:

          (A)  Moody's, is A2 or higher; or

          (B)  S&P, is A or higher; and

     (ii) the Original  Dollar  Amount of the Total  Commitments  at any time is
          within the ranges set out in Column 1 below,

                                      -48-
<PAGE>

          the  Applicable  Margin and Acceptance  Commission  Rate for each such
          Interest  Period or Term will be reduced to the percentage  figure set
          out  opposite  the  relevant  range in Column 2 or Column 3 below,  as
          applicable:


Column 1                                 Column 2                  Column 3
Total Commitments              Facility A, Facility B, and        Facility D
                                        Facility C             Applicable Margin
                                    Applicable Margin           and Acceptance
                                                                Commission Rate

Less than or equal to                 0.50 per cent.            0.45 per cent.
US$2,205,000,000 but greater
than US$1,575,000,000

Less than or equal to                0.425 per cent.            0.375 per cent.
US$1,575,000,000

(d)  If at any time:

     (i)  after  the  NEES  Acquisition  Completion  Date  a  long  term  senior
          unsecured  credit  rating  is not  assigned  to, or to any issue of or
          guaranteed by, NGG by either Moody's or S&P; or

     (ii) an Event of Default has occurred which is continuing,

     the Applicable  Margin and Acceptance  Commission  Rate for all Facility A,
     Facility B and Facility C Advances will be 0.575 per cent per annum and for
     all Facility D Utilisations will be 0.525 per cent. per annum.

(e)  Promptly  after  becoming  aware of the same, NGG shall inform the Agent in
     writing if any of the  circumstances  contemplated  by paragraph  (d) above
     arises.

(f)  In this Clause 10.6:

     (i)  a reference to an "issue of or guaranteed by" NGG is a reference to an
          issue  where the rating is based  primarily  on the  senior  unsecured
          credit risk of NGG; and

     (ii) if at any time  Moody's or S&P assigns  more than one long term senior
          unsecured  credit rating to NGG, or to issues of or guaranteed by NGG,
          only the lowest such rating shall be taken into account.

10.7 Forward-Sterling Advances

     Any Bank may elect by  notice to the Agent at the time that Bank  becomes a
     party to this  Agreement  or at the time that  Bank  changes  its  Facility
     Office that Sterling  Advances made by it out of a Facility  Office outside
     the UK be treated as forward-Sterling  Advances (with a Rate Fixing Day two
     Business Days prior to the first day of the Term of the Advance concerned).

                                      -49-
<PAGE>

11.  OPTIONAL CURRENCIES

11.1 Selection

Advances may only be  denominated  in an Optional  Currency if they are borrowed
under  Facility B or Facility D. No Borrower may request an Advance  denominated
in an Optional Currency (other than Dollars, Sterling or Euros) unless the Agent
has  confirmed to the Borrower that the Optional  Currency is readily  available
and freely transferable in the London foreign exchange market.

11.2 Non-availability of Currency

     If:

     (a)  before  9.00  a.m.  on any  Rate  Fixing  Day  for any  Advance  to be
          denominated in an Optional Currency,  the Agent receives notice from a
          Bank  that it is  impracticable  for that  Bank to fund  its  required
          Advance  in  that  Optional  Currency  for its  requested  Term in the
          ordinary course of business in the relevant interbank market; or

     (b)  the use of the proposed  Optional  Currency would or might  contravene
          any law or regulation,

     then:

     (i)  the Agent shall  promptly  (and in any event before 10.00 a.m. on that
          Rate Fixing Day) notify the relevant Borrower and the Banks;

     (ii) unless NGG or, in the case of Facility  D, NG  Company,  and the Agent
          otherwise agree, the requested Advances will be denominated instead in
          Dollars (in the case of Facility B  Advances)  or in Sterling  (in the
          case of  Facility  D  Advances),  in an amount  equal to the  Original
          Dollar Amount or the Original Sterling Amount,  as applicable,  of the
          requested Advances in the Optional Currency.

11.3 Notification of rates and amounts

(a)  If an  Advance  is to be drawn  down in an  Optional  Currency,  the amount
     thereof  shall be  determined  by  converting  the Original  Dollar  Amount
     thereof (if it is a Facility B Advance)  or the  Original  Sterling  Amount
     thereof (if it is a Facility D Advance) into that Optional  Currency on the
     basis of the  Agent's  Spot Rate of  Exchange on the date of receipt by the
     Agent of the Utilisation Request for that Advance.

(b)  If an Advance is to be repaid or prepaid by reference to an Original Dollar
     Amount or an Original  Sterling Amount,  the amount of Optional Currency to
     be repaid or prepaid  shall be  determined by reference to the Agent's Spot
     Rate of Exchange last used for determining the Optional  Currency amount of
     that Advance under paragraph (a) above.

(c)  The Agent shall notify each relevant Party of any  applicable  Agent's Spot
     Rate of Exchange or Original Dollar Amount or Original  Sterling Amount, as
     applicable, promptly after it has ascertained the same.

                                      -50-
<PAGE>

12.  PAYMENTS

12.1 Place

     Except where expressly provided to the contrary, all payments by an Obligor
     or a Bank under this Agreement shall be made to the Agent to its account at
     such office or bank in the principal financial centre of the country of the
     relevant currency (or, in the case of Euros, the principal financial centre
     of a Participating Member State or London) as it may notify to that Obligor
     or Bank for this purpose.

12.2 Funds

     Payments  under this  Agreement to the Agent shall be made for value on the
     due date at such  times and in such  funds as the Agent may  specify to the
     Party  concerned  as being  customary  at the time  for the  settlement  of
     transactions in the relevant currency in the place for payment.

12.3 Distribution

(a)  Each payment  received by the Agent under this  Agreement for another Party
     shall,  subject to paragraphs  (b) and (c) below,  be made available by the
     Agent to that Party by payment (on the date and in the  currency  and funds
     of receipt) to its account with such bank in the principal financial centre
     of the country of the  relevant  currency  (or,  in the case of Euros,  the
     principal  financial centre of Participating  Member State or London) as it
     may notify to the Agent for this purpose by not less than 5 Business  Days'
     prior  notice or, in the case of a Borrower,  in the  relevant  Utilisation
     Request.

(b)  The Agent may apply any amount  received by it for an Obligor in or towards
     payment  (on the date and in the  currency  and  funds of  receipt)  of any
     amount  due from an  Obligor  under this  Agreement  or in or  towards  the
     purchase of any amount of any currency to be so applied.

(c)  Where a sum is to be paid under this Agreement to the Agent for the account
     of another  Party,  the Agent is not  obliged to pay that sum to that Party
     until it has established that it has actually received that sum. Unless the
     Agent  receives not less than one Business  Day's written notice that a sum
     to be paid under this  Agreement  will not be paid,  it may assume that the
     sum has been paid to it in accordance  with this Agreement and, in reliance
     on that assumption, make available to that Party a corresponding amount. If
     the sum has not been made available, but the Agent has paid a corresponding
     amount to another  Party,  that Party shall  forthwith on demand refund the
     corresponding  amount to the Agent  together  with  interest on that amount
     from  the date of  payment  to the date of  receipt,  calculated  at a rate
     determined by the Agent to reflect its cost of funds.

(d)  If on any Utilisation Date:

     (i)  a Bank is required to participate  in an Advance  pursuant to Clause 5
          (Availability  of  Advances)  or  accept  Bills  pursuant  to Clause 6
          (Availability of the Bill Facility); and

     (ii) a payment is due to that Bank pursuant to Clause 8 (Repayment),

                                      -51-
<PAGE>

     then the Agent shall (without  prejudice to the obligations of the relevant
     Borrower under Clause 8 (Repayment))  apply the amount payable by such Bank
     to the Agent for the account of the relevant  Borrower on that  Utilisation
     Date in or  towards  satisfaction  of the amount  payable  by the  relevant
     Borrower  to such  Bank on such  Utilisation  Date  pursuant  to  Clause  8
     (Repayment).  The Agent shall advise NGG,  the  relevant  Borrower and each
     such Bank of the net amount,  if any, due from one party to the other after
     the application of funds as aforesaid and such net amount due shall be paid
     by the relevant  Borrower or the relevant  Bank(s),  as the case may be, on
     such date.

12.4 Currency

(a)  (i)  A repayment or  prepayment of an Advance is payable in the currency in
          which the Advance is denominated.

    (ii)  Interest is payable in the  currency in which the  relevant  amount in
          respect of which it is payable is denominated.

   (iii)  Amounts payable in respect of costs, expenses,  taxes and the like are
          payable in the currency in which they are incurred.

    (iv)  Any other amount  payable under this Agreement is, except as otherwise
          provided in this Agreement, payable in Sterling.

     (v)  Any  amount  payable  under  this  Agreement  in  the  currency  of  a
          Participating Member State will be paid in Euros.

(b)  If a change in any  currency of a country  occurs in a manner  different to
     that  expressly  contemplated  in this  Agreement,  this  Agreement will be
     amended  to the extent the Agent and NGG agree  (such  agreement  not to be
     unreasonably  withheld)  to be  necessary to reflect the change in currency
     and to put the  Banks  and the  Obligors  in the same  position,  as far as
     possible,  that  they  would  have been in if no  change  in  currency  had
     occurred.

12.5 Set-off and counterclaim

     All payments made by an Obligor under this Agreement  shall be made without
     set-off or counterclaim.

12.6 Non-Business Days

(a)  If a payment  under this  Agreement is due on a day which is not a Business
     Day, the due date for that payment  shall  instead be the next Business Day
     in the same calendar month (if there is one) or the preceding  Business Day
     (if there is not).  If,  however,  the extension of the due date would mean
     that a Bill would have a Tenor of more than 187 days, then the due date for
     that payment shall instead be the preceding Business Day.

(b)  During any  extension  of the due date for payment of any  principal  under
     this Agreement  interest is payable on the principal at the rate payable on
     the original due date.

                                      -52-
<PAGE>

12.7 Partial payments

(a)  If the Agent receives a payment  insufficient  to discharge all the amounts
     then due and payable by the Obligors under the Finance  Documents the Agent
     shall apply that payment  towards the obligations of the Obligors under the
     Finance Documents in the following order:

     (i)  first,  in or towards  payment pro rata of any unpaid costs,  fees and
          expenses of the Agent under this Agreement;

    (ii)  secondly,  in or towards  payment pro rata of any accrued fees due but
          unpaid under Clauses 23.1 (Front-end fee), 23.2 (Commitment  fee), and
          23.3 (Term-out Fee and Facility C Availability Extension Fee);

   (iii)  thirdly,  in or towards  payment pro rata of any accrued  interest due
          but unpaid under this Agreement;

    (iv)  fourthly,  in or towards  payment  pro rata of any  principal  due but
          unpaid under this Agreement; and

     (v)  fifthly,  in or  towards  payment  pro rata of any  other  sum due but
          unpaid under this Agreement.

(b)  The Agent shall, if so directed by all the Banks, vary the order set out in
     paragraphs (a)(ii) to (v) inclusive above.

(c)  Paragraphs  (a) and (b) above shall override any  appropriation  made by an
     Obligor.

13.  TAXES

13.1 Gross-up

(a)  For the  purposes of this  Clause 13,  "tax" and "taxes" in relation to any
     payment  to be made by an Obligor  under the  Finance  Documents  means any
     present or future  taxes of any nature now or  subsequently  imposed by the
     laws of:

     (i)  the United Kingdom;

    (ii)  any other  jurisdiction  from which, or through which, such payment is
          made or to the taxation  laws of which the relevant  Obligor is at the
          time of such payment subject;

   (iii)  any  political  sub-division  of the United  Kingdom or any such other
          jurisdiction; or

    (iv)  any federation or association of states of which the United Kingdom or
          any such other jurisdiction is, at the time of such payment, a member.

(b)  All payments by an Obligor  under the Finance  Documents to a Finance Party
     shall be made  without  any  deduction,  and free and clear of and  without
     deduction  or  withholding  for or on account  of any taxes,  except to the
     extent that the Obligor is required by law to deduct or withhold

                                      -53-
<PAGE>

     taxes from any amounts  payable or paid or to make  payment  subject to any
     taxes.  If any tax or amounts in  respect of tax must be  deducted,  or any
     other  deductions  must be made,  from any  amounts  payable  or paid by an
     Obligor,  or paid or  payable  by the Agent to a Bank,  under  the  Finance
     Documents,  the  Obligor  shall  pay  such  additional  amounts  as  may be
     necessary to ensure that the relevant  Bank  receives a net amount equal to
     the full  amount  which it would have  received  had  payment not been made
     subject to tax or other deduction.

13.2 Tax receipts

     All taxes required by law to be deducted or withheld by an Obligor from any
     amounts paid or payable  under the Finance  Documents  shall be paid by the
     relevant  Obligor  when due (unless the  obligation  to pay any such tax is
     being disputed in good faith) and the Obligor shall,  within 15 days of the
     payment  being made,  deliver to the Agent for the relevant  Bank  evidence
     satisfactory  to that Bank  (including  all relevant tax receipts) that the
     payment has been duly remitted to the appropriate authority.

13.3 Qualifying Bank

(a)  In respect of amounts payable by an Obligor,  if otherwise than as a result
     of the  introduction  of,  change  in,  or  change  in the  interpretation,
     administration  or application of, any law or regulation or any practice or
     concession of the United Kingdom Inland Revenue occurring after the date of
     this Agreement, a Bank is not or ceases to be a Qualifying Bank, no Obligor
     is liable to pay to that Bank under  Clause 13.1  (Gross-up)  any amount in
     respect of taxes  levied or  imposed  by the  United  Kingdom or any taxing
     authority of or in the United Kingdom in excess of the amount it would have
     been  obliged  to pay if  that  Bank  was  not or had  not  ceased  to be a
     Qualifying Bank.

(b)  On the date of this  Agreement,  each  Bank  which is a party on that  date
     warrants,  and each Bank which  becomes a Party after the date hereof shall
     warrant on the date upon which it becomes a Party,  that it is a Qualifying
     Bank. If for whatever reason a Bank ceases to be a Qualifying Bank it shall
     immediately notify the Agent and NGG in writing.

(c)  Each Bank undertakes,  as soon as reasonably  practicable after the Signing
     Date or,  as  applicable,  the date upon  which it  becomes a Party to this
     Agreement,  where  requested in writing by an Obligor to do so, to complete
     and file,  or to provide such  information  as NGG  reasonably  requests in
     order to complete  and file,  any  declaration,  claim,  exemption or other
     form, which it is able to complete and file or, in the case of information,
     to provide, as may be required to ensure that an Obligor is not required to
     pay  any  additional  amount  pursuant  to  paragraph  (b) of  Clause  13.1
     (Gross-up).

13.4 Collecting Agents Rules

Each  Bank  represents  to the  Agent  that,  in the case of a Bank  which is an
original signatory to this Agreement,  on the Signing Date and, in the case of a
Bank  which  becomes  a Bank  after the date of this  Agreement,  on the date it
becomes a Bank, in relation to the Facilities, it is:

     (a)  either:

          (i)  not  resident  in the  United  Kingdom  for  United  Kingdom  tax
               purposes; or

                                      -54-
<PAGE>

          (ii) a bank as defined in section  840A of the Income and  Corporation
               Taxes Act 1988 and resident in the United Kingdom; and

     (b)  beneficially  entitled to the  principal  and interest  payable by the
          Agent to it under this Agreement,

     (or, if it is not able to make those  representations,  will ensure that it
     assigns,  transfers  or novates its rights in respect of each  Advance then
     made (or, if made  later,  when made) to an entity in respect of which both
     representations   are   correct)   and,   if  it  is  able  to  make  those
     representations  on the Signing  Date or the date it becomes a Bank,  shall
     forthwith notify the Agent if either representation ceases to be correct.

13.5 Tax Credits

(a)  If an Obligor pays any  additional  amount (a "Tax  Payment")  under Clause
     13.1 (Gross-up) and a Bank  effectively  obtains a refund of tax, or relief
     or credit  against tax, by reason of that Tax Payment (a "Tax  Credit") and
     is able to  identify  the  Tax  Credit  as  being  attributable  to the Tax
     Payment, then it shall reimburse to the relevant Obligor such amount as the
     Bank  reasonably   determines  (in  its  absolute  discretion)  to  be  the
     proportion of the Tax Credit as will leave it, after that reimbursement, in
     no better or worse  position  than it would have been in if the Tax Payment
     had not been  required.  Each Bank shall have an absolute  discretion as to
     whether to claim any Tax Credit and, if it does so claim, the extent, order
     and manner in which it does so. No Bank shall be  obliged to  disclose  any
     information  regarding  its tax affairs or  computations  to any Obligor in
     respect of any provision of this Agreement or otherwise.

(b)  If any Bank makes any payment to an Obligor pursuant to paragraph (a) above
     and that Bank subsequently determines that the credit, relief, remission or
     repayment in respect of which such payment was made was not available to it
     or has been  withdrawn  from it or that it was  unable to use such  credit,
     relief,  remission or repayment in full,  the Obligor shall  reimburse that
     Bank to the extent (but not  exceeding  the  relevant  payment by that Bank
     under  paragraph  (a) above) that it  determines  to have been  required to
     place it in the same  after-tax  position  as it would have been in if such
     credit, relief, remission or repayment had been obtained and fully used and
     retained by that Bank.

13.6 U.S. Taxes

(a)  No U.S. Borrower shall be required to pay any additional amount pursuant to
     Clause  13.1  (Gross-up)  in respect  of United  States  taxes  (including,
     without limitation,  federal,  state, local or other income taxes),  branch
     profits or franchise  taxes with respect to a sum payable by it pursuant to
     this Agreement to a Finance Party if:

     (i)  on the  date  such  Bank  becomes  a Party  to this  Agreement  or has
          designated a new Facility Office:

          (1)  in the case of a Bank  which is not a United  States  person  (as
               such term is defined in Section  7701(a)(30)  of the U.S.  Code),
               such  Bank is not  entitled  to submit a United  States  Internal
               Revenue Service Form 1001 (relating to such Bank and entitling it
               to a complete  exemption from withholding on all interest payable
               to it

                                      -55-
<PAGE>

               pursuant to this  Agreement) or a Form 4224 (relating to interest
               payable  to  such  Bank  pursuant  to  this  Agreement)  (or  any
               successor  forms) with  respect to interest  payable  pursuant to
               this Agreement; or

          (2)  in the case of a Bank  which is a United  States  person (as such
               term is defined in Section  7701(a)(30) of the U.S. Code), Clause
               13.1  (Gross-up)  would  apply  (other  than as a  result  of the
               introduction  of,  suspension,  withdrawal or cancellation of, or
               change in the official interpretation, administration or official
               application of, any law,  regulation having the force of law, tax
               treaty or any published  practice or published  concession of the
               United  States  Internal  Revenue  Service or any other  relevant
               taxing or fiscal  authority  in any  jurisdiction  with which the
               relevant Bank has a connection, occurring after the date the Bank
               becomes  a  Party  to  this  Agreement  or has  designated  a new
               Facility Office); or

     (ii) such Bank has  failed to provide  the  Borrower  with the  appropriate
          form,  certificate  or  other  information  with  respect  to such sum
          payable that it was required to provide  pursuant to paragraph  (b) or
          (c) below and is entitled to file under applicable law; or

    (iii) such Bank is subject to such tax by reason of any  connection  between
          the jurisdiction imposing such tax and the Bank or its Facility Office
          other than a  connection  arising  solely from this  Agreement  or any
          transaction contemplated hereby.

(b)  If a Bank is not a United States person (as such term is defined in Section
     7701(a)(30)  of the U.S.  Code) it shall (if and to the  extent  that it is
     entitled  to do so under  applicable  law)  submit,  as soon as  reasonably
     practicable  after a U.S.  Borrower  becomes a Party to this  Agreement  or
     designated a new Facility Office,  in duplicate to each U.S.  Borrower duly
     completed  and  signed  copies of either  United  States  Internal  Revenue
     Service Form 1001 (or, such  successor  forms as shall be adopted from time
     to time by the relevant United States taxing authorities) (relating to such
     Bank and  entitling  it to a complete  exemption  from  withholding  on all
     amounts (to which such withholding would otherwise apply) to be received by
     such Bank,  including  fees,  pursuant to this Agreement in connection with
     any borrowing by such U.S.  Borrower) as a result of a tax treaty concluded
     with the United States or United States Internal  Revenue Service Form 4224
     (relating to all amounts (to which such withholding  would otherwise apply)
     to be received by such Bank,  including fees, pursuant to this Agreement in
     connection with any borrowing by such U.S.  Borrower).  Thereafter and from
     time to time upon the  reasonable  request  of a U.S.  Borrower,  such Bank
     shall (if and to the extent that it is  entitled to do so under  applicable
     law) submit to such U.S. Borrower such additional duly completed and signed
     copies of such forms (or such successor forms as shall be adopted from time
     to  time  by  the  relevant  United  States  taxation  authorities)  or any
     additional information,  in each case as may be required under then current
     United  States  law or  regulations  to  claim  the  inapplicability  of or
     exemption  from United States  withholding  taxes on payments in respect of
     all  amounts  (to  which  such  withholding  would  otherwise  apply) to be
     received  by such Bank,  including  fees,  pursuant  to this  Agreement  in
     connection with any borrowing by such U.S. Borrower.

(c)  If a Bank is a United  States  person  (as such term is  defined in Section
     7701(a)(30) of the U.S. Code) it shall,  as soon as reasonably  practicable
     after a U.S. Borrower becomes a Party to this Agreement or designates a new
     Facility  Office,  and  thereafter  upon the  reasonable  request of a U.S.
     Borrower,  submit in duplicate to such U.S.  Borrower a certificate  to the
     effect that it is such a

                                      -56-
<PAGE>

     United States person and shall (if and to the extent that it is entitled to
     do so under applicable law) upon the reasonable  request of a U.S. Borrower
     submit any  additional  information  that may be  necessary to avoid United
     States  withholding  taxes on all payments,  including fees, (to which such
     withholding  would  otherwise  apply)  to  be  received  pursuant  to  this
     Agreement in connection with any borrowing by such U.S. Borrower.

14.  MARKET DISRUPTION

14.1 Advances

(a)  If  LIBOR  is to be  determined  by  reference  to  Reference  Banks  but a
     Reference  Bank does not  supply an offered  rate by 11.15  a.m.  on a Rate
     Fixing Day, the applicable LIBOR shall,  subject to paragraph (b) below, be
     determined on the basis of the quotations of the remaining Reference Banks.

(b)  If, in relation to any proposed Utilisation comprising Advances:

     (i)  LIBOR is to be determined  by reference to Reference  Banks but no, or
          only  one,  Reference  Bank  supplies  a  rate  for  the  purposes  of
          determining  the applicable  LIBOR or the Agent  otherwise  determines
          that  adequate  and  fair  means do not  exist  for  ascertaining  the
          applicable LIBOR; or

     (ii) the Agent receives  notification from Banks participating in more than
          50 per cent. in value of the proposed Advances that, in their opinion:

          (A)  matching  deposits  may not be  available  to them in the  London
               interbank market in the ordinary course of business to fund their
               Advances for the relevant Interest Period or Term; or

          (B)  the cost to them of  matching  deposits  in the London  interbank
               market  would be in  excess of LIBOR  for the  relevant  Interest
               Period or Term,

     then the Agent shall promptly  notify NGG, any other relevant  Borrower and
     the relevant Banks of the fact and that this Clause 14.1 is in operation.

(c)  After any notification under paragraph (b) above:

     (i)  the relevant Borrower and the Banks may (through the Agent) agree that
          the Advances comprised in the Utilisation shall not be made; or

     (ii) in the absence of such agreement:

          (A)  the Advances shall still be made;

          (B)  the Interest Period or Term of each relevant Advance shall be one
               week during the Primary  Syndication  Period and  thereafter  one
               month;

                                      -57-
<PAGE>

          (C)  during the  Interest  Period or Term of each  Advance the rate of
               interest  applicable  to that  Advance  shall  be the  Applicable
               Margin plus the applicable  Reserve Asset Costs plus the rate per
               annum  notified by the relevant Bank to the Agent before the last
               day of that Interest Period or Term to be that which expresses as
               a  percentage  rate per annum the cost to the Bank of funding its
               Advance from whatever sources it may reasonably select;

          (D)  during the relevant Interest Period or Term of each Advance, NGG,
               any other  relevant  Borrower  and the  Agent  shall  enter  into
               negotiations for a period of not more than 30 days with a view to
               agreeing a substitute  basis for determining the rate of interest
               and/or   funding   applicable  to  any  future   Advances  to  be
               denominated  in the  currency of the  affected  Advances  for the
               duration agreed at the time of determining the substitute  basis;
               and

          (E)  any substitute  basis agreed under  paragraph (D) above shall be,
               with the  prior  consent  of all the  Banks,  binding  on all the
               Parties.

14.2 Bills

(a)  If the Agent is not able to determine the EBDR on any relevant  Utilisation
     Date by reference to all the Reference  Banks,  the Agent shall be entitled
     to  determine  the EBDR on the  basis of the  quotations  of the  remaining
     Reference Banks.

(b)  If, in relation to any Bills:

     (i)  no Reference Bank supplies a rate for  determining the applicable EBDR
          or the Agent otherwise  determines that adequate and fair means do not
          exist for ascertaining the applicable EBDR; or

     (ii) the  Agent  determines  that  the  Bills do not  comply  with the then
          current Bank of England regulations for Sterling bankers' acceptances,

     the Agent shall by 11.30 a.m. on the  relevant  Utilisation  Date  promptly
     notify NG Company and the  relevant  Banks of the fact and that this Clause
     is in operation.

(c)  After any notification under paragraph (b) above:

     (i)  the relevant Bills shall not be accepted;

    (ii)  if the Agent  receives a notice  from NG Company by 12.30 p.m.  on the
          relevant  Utilisation Date, then Advances in Sterling shall be made to
          NG Company in an amount equal to the  principal  amount of Bills to be
          accepted and there shall be  substituted  in the definition of "LIBOR"
          (insofar as it applies to those Advances) in Clause 1.1 the time "1.00
          p.m." instead of the time "11.00 a.m."; and

   (iii)  in  the  case  of  paragraph  (b)(i)  above,  no  further  Utilisation
          Requests  for Bills may be  delivered  until  the  Agent  notifies  NG
          Company that it is once again able to determine the applicable EBDR.

                                      -58-
<PAGE>

15.  INCREASED COSTS

15.1 Increased costs

     (a)  Subject to Clause 15.2 (Exceptions),  NGG shall forthwith on demand by
          a Finance  Party pay that  Finance  Party the amount of any  increased
          cost incurred by it as a result of:

          (i)  the  introduction  of, or any  change  in,  or any  change in the
               interpretation or application of, any law or regulation after the
               date of this Agreement;

         (ii)  compliance  with  any  regulation  made  after  the  date of this
               Agreement,

     (including  any law or  regulation  relating to taxation or reserve  asset,
     special deposit, cash ratio,  liquidity or capital adequacy requirements or
     any other form of banking or monetary control).

     (b)  In this Agreement, "increased cost" means:

          (i)  an  additional  cost incurred by a Finance Party or its Regulated
               Holding  Company as a result of that Finance Party having entered
               into,  or  performing,  maintaining  or funding  its  obligations
               under, any Finance Document; or

         (ii)  that portion of an additional cost incurred by a Finance Party or
               its Regulated  Holding Company in making,  funding or maintaining
               all or any advances comprised in a class of advances formed by or
               including  the  Advances  made  or to be made  by it  under  this
               Agreement as is attributable to it making, funding or maintaining
               its Advances; or

        (iii)  a  reduction  in any  amount  payable  to a Finance  Party or its
               Regulated  Holding  Company or the effective  return to a Finance
               Party under this Agreement or on its capital; or

         (iv)  the  amount  of  any  payment  made  by a  Finance  Party  or its
               Regulated  Holding  Company,  or the amount of  interest or other
               return  foregone  by a  Finance  Party or its  Regulated  Holding
               Company,  calculated  by  reference  to any  amount  received  or
               receivable  by a Finance  Party or any of its  Regulated  Holding
               Company from any other Party under this Agreement.

15.2 Exceptions

     Clause 15.1 (Increased costs) does not apply to any increased cost:

     (a)  compensated for by the payment of the Reserve Asset Cost; or

     (b)  compensated  for by the  operation of Clause 13 (Taxes) or which would
          have been  compensated  for by operation of that Clause but for Clause
          13.3 (Qualifying Bank); or

     (c)  attributable  to any  change  in the  rate of tax on the  overall  net
          income of a Finance  Party or its  Regulated  Holding  Company (or the
          overall net income of a division or branch of the Finance Party on its
          Regulated  Holding  Company)  imposed in the jurisdiction in which its
          principal office or Facility Office is situated; or

                                      -59-
<PAGE>

     (d)  incurred as a consequence of the implementation in whole or in part of
          the  International  Convergence  of Capital  Measurement  and  Capital
          Standards  dated July 1988 and  published  by The Basle  Committee  on
          Banking Regulations and Supervisory Practices in the United Kingdom by
          notices  issued by the Bank of  England  on or before the date of this
          Agreement; or

     (e)  attributable   to  any   implementation   by  any   authority   having
          jurisdiction  over any of the Banks of the proposals  contained in the
          matters set out in the EC Directive  93/6/EEC of 15th March,  1993, on
          the capital adequacy of investment firms and credit institutions.

16.  MITIGATION

     If any  circumstances  arise in relation to any Bank which would,  or would
     upon the giving of notice, result in:

     (a)  a demand for payment pursuant to Clause 15.1 (Increased  costs) or the
          provisions of Clause 14 (Market Disruption) applying;

     (b)  a  cancellation  of its Commitment  pursuant to paragraph  (b)(iii) of
          Clause 17 (Illegality); or

     (c)  an  increase  in the amount of any payment to be made to it or for its
          account pursuant to Clause 13.1 (Gross-up),

     then,  without in any way limiting,  reducing or otherwise  qualifying  any
     relevant Obligor's  obligations under any of the provisions  referred to in
     paragraphs (a) to (c) above,  the Bank will promptly upon becoming aware of
     the same notify the Agent thereof and, in consultation  with the Agent, NGG
     and any other relevant Obligor,  use reasonable  endeavours to transfer its
     participation  in the Facilities and its rights and obligations  under this
     Agreement to another financial institution or Facility Office acceptable to
     the Agent, NGG and any other relevant Obligor and willing to participate as
     a Bank under this  Agreement and otherwise  take such steps as it considers
     reasonably  open to it for a period not  exceeding  30 days to mitigate the
     effects of those  circumstances,  unless, in the reasonable opinion of that
     Bank,  such  steps  might  have a  material  adverse  effect  upon  the tax
     position,  business,  operations or financial condition,  or be contrary to
     the banking policy, of that Bank. Nothing in this provision shall require a
     Bank to disclose  any  information  as to its  banking  policy or any other
     matters which it regards as confidential or commercially sensitive.

17.  ILLEGALITY

     If it is or becomes  unlawful in any jurisdiction for a Bank to give effect
     to any of its  obligations as  contemplated by this Agreement or to fund or
     maintain any Advance, then:

     (a)  the Bank may notify NGG (through the Agent) accordingly; and

     (b)  (i)  each Borrower shall  forthwith  prepay or repay any Advances made
               to it by that Bank together with all other amounts  payable by it
               to that Bank  under  this  Agreement  on or  before  the last day
               permitted by the relevant law being, if

                                      -60-
<PAGE>

               possible, the Maturity Date for any Facility B Advance,  Facility
               C Advance  (other than a Term-out  Advance) or Facility D Advance
               or the next  Interest Date for a Facility A Advance or a Term-out
               Advance;

         (ii)  each  Borrower  shall  forthwith  perform its  obligations  under
               Clause 8.4 (Payment of Bills) in respect of all outstanding Bills
               accepted  by that Bank on or before the latest day  permitted  by
               the relevant  applicable  law being,  if  possible,  the Maturity
               Dates for those Bills; and

        (iii)  that Bank's  Commitment  shall be  cancelled  in full with effect
               from the date of the notification made under paragraph (a) above.

18.  GUARANTEE

18.1 Guarantee

(a)  Each  Guarantor   (other  than  an  NG  Company   Guarantor)   irrevocably,
     unconditionally  and jointly and severally with each other Guarantor (other
     than an NG Company Guarantor):

     (i)  as  principal  obligor,   guarantees  to  each  Finance  Party  prompt
          performance by each Borrower  (other than itself) (each such Borrower,
          a  "guaranteed  party") of all its  respective  obligations  under the
          Finance Documents;

    (ii)  undertakes  with each Finance Party that  whenever a guaranteed  party
          does not pay an  amount  when  due  under  or in  connection  with any
          Finance  Document,  that  Guarantor  shall  forthwith on demand by the
          Agent pay that  amount as if that  Guarantor  instead of the  relevant
          guaranteed party were expressed to be the principal obligor; and

   (iii)  indemnifies   each  Finance  Party  on  demand  against  any  loss  or
          liability  suffered  by  it  if  any  obligation  guaranteed  by  that
          Guarantor is or becomes unenforceable, invalid or illegal.

(b)  Each NG Company  Guarantor  irrevocably,  unconditionally  and  jointly and
     severally with each other Guarantor:

     (i)  as  principal  obligor,   guarantees  to  each  Finance  Party  prompt
          performance by NG Company of all its respective  obligations under the
          Finance Documents;

    (ii)  undertakes  with each Finance  Party that whenever NG Company does not
          pay an  amount  when due  under  or in  connection  with  any  Finance
          Document,  that Guarantor  shall  forthwith on demand by the Agent pay
          that amount as if that Guarantor  instead of NG Company were expressed
          to be the principal obligor; and

   (iii)  indemnifies   each  Finance  Party  on  demand  against  any  loss  or
          liability  suffered  by  it  if  any  obligation  guaranteed  by  that
          Guarantor is or becomes unenforceable, invalid or illegal.

18.2 Continuing guarantee

                                      -61-
<PAGE>

     This  guarantee is a continuing  guarantee  and will extend to the ultimate
     balance of all sums  payable by each  guaranteed  party  under the  Finance
     Documents,  regardless of any intermediate payment or discharge in whole or
     in part.

18.3 Reinstatement

     (a)  Where any  discharge  (whether  in respect of the  obligations  of any
          guaranteed  party or any security for those  obligations or otherwise)
          is made in whole or in part or any arrangement is made on the faith of
          any payment, security or other disposition which is avoided or must be
          restored on insolvency,  liquidation or otherwise without  limitation,
          the liability of that Guarantor under this Clause 18 shall continue as
          if the discharge or arrangement had not occurred.

     (b)  The Agent  may,  on behalf of each  other  Finance  Party,  concede or
          compromise any claim that any payment,  security or other  disposition
          is liable to avoidance or restoration.

18.4 Waiver of defences

     The obligations of each Guarantor under this Clause 18 will not be affected
     by any act, omission, matter or thing which, but for this provision,  would
     reduce, release or prejudice any of its obligations under this Clause 18 or
     prejudice  or diminish  those  obligations  in whole or in part,  including
     (whether or not known to it or any Finance Party):

     (a)  any time or waiver  granted to, or  composition  with,  any Obligor or
          other person;

     (b)  the taking, variation, compromise, exchange, renewal or release of, or
          refusal or neglect to perfect, take up or enforce, any rights against,
          or  security  over  assets  of,  any  Obligor  or other  person or any
          non-presentation   or   non-observance   of  any  formality  or  other
          requirement in respect of any instrument or any failure to realise the
          full value of any security;

     (c)  any incapacity or lack of powers, authority or legal personality of or
          dissolution  or change in the  members  or status of an Obligor or any
          other person;

     (d)  any  variation  (however  fundamental)  or  replacement  of a  Finance
          Document or any other document or security so that  references to that
          Finance  Document in this Clause 18 shall  include  each  variation or
          replacement;

     (e)  any  unenforceability,  illegality or invalidity of any  obligation of
          any  person  under  any  Finance  Document  or any other  document  or
          security,  to the intent that each Guarantor's  obligations under this
          Clause 18 shall  remain in full force and its  guarantee  be construed
          accordingly,  as if  there  were no  unenforceability,  illegality  or
          invalidity; or

     (f)  any  postponement,  discharge,  reduction,  non-provability  or  other
          similar  circumstance  affecting any obligation of any Obligor under a
          Finance  Document  resulting  from  any  insolvency,   liquidation  or
          dissolution  proceedings or from any law,  regulation or order so that
          each  such  obligation  shall  for the  purposes  of each  Guarantor's
          obligations  under this Clause 18 shall be  construed as if there were
          no such circumstance.

                                      -62-
<PAGE>

18.5 Immediate recourse

         Each  Guarantor  waives  any right it may have of first  requiring  any
         Finance  Party  (or any  trustee  or agent on its  behalf)  to  proceed
         against or enforce any other  rights or security or claim  payment from
         any person before claiming from that Guarantor under this Clause 18.

18.6 Appropriations

     Until all amounts which may be or become  payable by the Obligors  under or
     in connection  with the Finance  Documents  have been  irrevocably  paid in
     full, each Finance Party (or any trustee or agent on its behalf) may:

     (a)  refrain  from  applying or  enforcing  any other  moneys,  security or
          rights held or received by that Finance Party (or any trustee or agent
          on its behalf) in respect of those  amounts,  or apply and enforce the
          same in such manner and order as it sees fit  (whether  against  those
          amounts  or  otherwise)  and no  Guarantor  shall be  entitled  to the
          benefit of the same; and

     (b)  hold in a suspense  account (bearing  interest at a normal  commercial
          rate  as  determined  by the  Agent)  any  moneys  received  from  any
          Guarantor or on account of any Guarantor's liability under this Clause
          18.

18.7 Non-competition

     Until all amounts which may be or become  payable by the Obligors  under or
     in connection  with the Finance  Documents  have been  irrevocably  paid in
     full, no Guarantor shall,  after a claim has been made under this Clause 18
     or by virtue of any payment or performance by it under this Clause 18:

     (a)  be  subrogated  to any rights,  security or moneys  held,  received or
          receivable  by any  Finance  Party  (or any  trustee  or  agent on its
          behalf) or be entitled to any right of  contribution  or  indemnity in
          respect  of any  payment  made or moneys  received  on account of that
          Guarantor's liability under this Clause 18;

     (b)  claim,  rank,  prove or vote as a creditor of any guaranteed  party or
          its estate in  competition  with any Finance  Party (or any trustee or
          agent on its behalf); or

     (c)  receive,  claim or have the benefit of any  payment,  distribution  or
          security from or on account of any guaranteed  party,  or exercise any
          right of set-off as against any guaranteed party.

     Unless the Agent otherwise directs,  each Guarantor shall hold in trust for
     and  forthwith  pay or transfer  to the Agent for the  Finance  Parties any
     payment or distribution  or benefit of security  received by it contrary to
     this Clause 18.7.

18.8 Additional security

     This  guarantee is in addition to and is not in any way  prejudiced  by any
     other security now or hereafter held by any Finance Party.

                                      -63-
<PAGE>

18.9 Limitation on guarantee of U.S. Guarantors

     Notwithstanding  any other  provision of this Clause 18, the obligations of
     each Guarantor incorporated in the United States (a "U.S. Guarantor") under
     this Clause 18 shall be limited to a maximum  aggregate amount equal to the
     largest amount that would not render its obligations  hereunder  subject to
     avoidance as a fraudulent transfer or conveyance under Section 548 of Title
     11 of the United States  Bankruptcy  Code or any  applicable  provisions of
     comparable state law  (collectively,  the "Fraudulent  Transfer Laws"),  in
     each case after giving effect:

     (a)  to all  other  liabilities  of  such  U.S.  Guarantor,  contingent  or
          otherwise,  that are  relevant  under  the  Fraudulent  Transfer  Laws
          (specifically  excluding,   however,  any  liabilities  of  such  U.S.
          Guarantor in respect of intercompany  indebtedness to the Borrowers or
          Affiliates of the Borrowers to the extent that such indebtedness would
          be  discharged  in an  amount  equal to the  amount  paid by such U.S.
          Guarantor hereunder); and

     (b)  as assets to the value (as determined under the applicable  provisions
          of the  Fraudulent  Transfer  Laws)  of  any  rights  to  subrogation,
          contribution,  reimbursement, indemnity or similar rights of such U.S.
          Guarantor  pursuant  to (i)  applicable  law  or  (ii)  any  agreement
          providing for an equitable  allocation  among such U.S.  Guarantor and
          other  Affiliates  of  the  Borrowers  of  obligations  arising  under
          guarantees by such parties.

19.  REPRESENTATIONS AND WARRANTIES

19.1 Representations and warranties

     Subject to Clause 19.18 (Times for making  representations and warranties),
     each  Obligor  makes the  representations  and  warranties  set out in this
     Clause 19 to each Finance  Party (but,  in the case of NG Company,  only in
     respect of itself, the NG Company Subsidiaries and the NG Company Group, as
     applicable).

19.2 Status

(a)  It is a limited liability  company,  duly incorporated and validly existing
     under the laws of the jurisdiction of its incorporation; and

(b)  each  member of the Group has the power to own its  assets and carry on its
     business as it is being conducted.

19.3 Power and authority

     It has the power to enter  into and  perform,  and has taken all  necessary
     action to  authorise  the entry  into,  performance  and  delivery  of, the
     Finance  Documents  to which it is or will be a party and the  transactions
     contemplated by those Finance Documents.

                                      -64-
<PAGE>

19.4 Legal validity

     Each  Finance  Document to which it is or will be a party  constitutes,  or
     when  executed in  accordance  with its terms will  constitute,  its legal,
     valid and binding obligation in accordance with its terms.

19.5 Non-conflict

     The entry into and performance by it of, and the transactions  contemplated
     by, the Finance Documents do not and will not:

     (a)  conflict with any applicable law or regulation or judicial or official
          orders;

     (b)  conflict with its constitutional documents;

     (c)  conflict  with any  document  which is  binding  upon it or any of its
          assets; or

     (d)  result in the creation or imposition  of any Security  Interest on the
          assets of any member of the Group.

19.6 No default

     (a)  No  Event  of  Default  is   outstanding  or  would  result  from  any
          Utilisation; and

     (b)  no other event is outstanding  which  constitutes (or, with the giving
          of  notice,  expiry of any  applicable  grace  period,  lapse of time,
          determination of materiality or the fulfilment of any other applicable
          condition or any combination of the foregoing, is reasonably likely to
          constitute)  a default  under any  document  which is  binding  on any
          member  of the  Group or any  asset of any  member  of the Group to an
          extent or in a manner  which is  reasonably  likely to have a material
          adverse effect on the financial  condition of the Obligors (taken as a
          whole) or on the ability of the Obligors (taken as a whole) to perform
          their  obligations  under the Finance  Documents  (including,  without
          limitation,  the  obligations  of the Initial  Borrowers  under Clause
          20.19  (Group  Financial  covenants)  and  Clause  20.20  (NG  Company
          Financial  Covenants)  and the  obligations  of the  Guarantors  under
          Clause 18 (Guarantee)).

19.7 Licences

     Each Obligor and each Principal Subsidiary is duly licensed by:

     (a)  the Secretary of State under Section 6(1)(b) of the  Electricity  Act;
          or

     (b)  the relevant authorities under any other applicable Energy Laws,

     to the extent  that such  licences  are  required  for that Group  member's
     business at the time.

                                      -65-
<PAGE>

19.8 Compliance with Licences and regulations

     Each Obligor and each Principal  Subsidiary has complied with and is not in
     breach  of any  of  its  obligations  (if  any)  under  its  Licences,  the
     Electricity Act (save with the consent of the Director), the Grid Code, any
     regulation or other  requirement of the Director or any other Energy Law in
     any  such  case  applicable  to it to an  extent  or in a  manner  which is
     reasonably  likely  materially  and  adversely to affect the ability of the
     Obligors (taken as a whole) to perform their  obligations under the Finance
     Documents  (including,  without limitation,  the obligations of the Initial
     Borrowers under Clause 20.19 (Group  Financial  covenants) and Clause 20.20
     (NG Company  Financial  Covenants)  and the  obligations  of the Guarantors
     under Clause 18 (Guarantee)).

19.9 Environmental matters

     Each  Obligor and each  Principal  Subsidiary  has or will at the  relevant
     times have obtained all Environmental Approvals required in connection with
     its business and has at all times  complied in all material  respects  with
     the  terms  of  those  Environmental  Approvals  and all  other  applicable
     Environmental Laws in each case where failure to do so is reasonably likely
     materially and adversely to affect the ability of the Obligors  (taken as a
     whole) to perform their obligations under the Finance Documents (including,
     without limitation,  the obligations of the Initial Borrowers) under Clause
     20.19 (Group  Financial  covenants) and Clause 20.20 (NG Company  Financial
     Covenants)  and  the   obligations  of  the  Guarantors   under  Clause  18
     (Guarantee).

19.10 Authorisations

     All authorisations  required in connection with the entry into, performance
     and validity of, and the transactions contemplated by the Finance Documents
     have been obtained or effected (as  appropriate)  and are in full force and
     effect.

19.11 Accounts

(a)  In the case of NGG,  the  audited  consolidated  accounts of the Group most
     recently delivered to the Agent (which, at the date of this Agreement,  are
     the Original Group Accounts):

     (i)  save as  specified  therein,  have been  prepared in  accordance  with
          accounting  principles and practices  generally accepted in the United
          Kingdom consistently applied; and

    (ii)  give a true and fair view of the consolidated  financial  condition of
          the Group as at the date to which they were drawn up,

     and there has been no material adverse change in the consolidated financial
     condition  of the Group since the date to which those  accounts  were drawn
     up.

(b)  In the case of each Obligor  (other than NGG),  its audited  accounts  most
     recently delivered to the Agent:

     (i)  save as  specified  therein,  have been  prepared in  accordance  with
          accounting   principles  and  practices   generally  accepted  in  the
          jurisdiction in which it is incorporated consistently applied; and

                                      -66-
<PAGE>

    (ii)  give a true and fair view of its financial condition as at the date to
          which they were drawn up,

     and there has been no material adverse change in the financial condition of
     that Obligor since the date to which those accounts were drawn up.

19.12 Litigation

     No litigation, arbitration or administrative proceedings are current or, to
     its knowledge,  pending or  threatened,  which are  reasonably  likely,  if
     adversely  determined,  to have a material  adverse effect on the financial
     condition of the Group or the ability of the Obligors (taken as a whole) to
     perform their obligations under the Finance Documents  (including,  without
     limitation,  the  obligations of the Initial  Borrowers  under Clause 20.19
     (Group  Financial   covenants)  and  Clause  20.20  (NG  Company  Financial
     Covenants)  and  the   obligations  of  the  Guarantors   under  Clause  18
     (Guarantee)).

19.13 Information Package

(a)  The factual information contained in the Information Package is to the best
     of NGG's and NG  Company's  knowledge  and belief true and  accurate in all
     material respects as at its date, opinions expressed about the Group in the
     Information   Package  were  honestly  held  and  all  projections  in  the
     Information  Package were based on assumptions  considered to be reasonable
     in each case as at the date of which the Information Package speaks and all
     such information, opinions and assumptions were provided in good faith.

(b)  The Information Package did not omit at its date any information which made
     misleading  in  any  material  respect  any  factual   information  in  the
     Information Package.

(c)  Nothing has occurred  since the date of the  Information  Memorandum  which
     renders  the  information  contained  in it untrue,  or  misleading  in any
     material  respect and which, if disclosed,  could reasonably be expected to
     adversely affect the decision of a person considering whether to enter into
     this Agreement.

(d)  In this Clause 19.13 "Information Package" means:

     (i)  the Information Memorandum; and

    (ii)  the  financial  model in  relation  to the  Group  and the NEES  Group
          prepared by NGG (and including the assumptions on which such model was
          based).

19.14 Year 2000 Compliance

     Each Obligor and each Principal Subsidiary:

     (a)  has  taken  and  is  taking  all  steps  necessary  to  implement  the
          requirements  of the Director  applicable  to it (if any)  relating to
          avoiding any adverse effects of the occurrence of the year 2000 on the
          capacity of any computer system, software or other equipment owned or,
          used by that Party  which is  critical  to the  business  of the Group
          (taken as a whole) or, in

                                      -67-
<PAGE>

          the case of NG  Company  or any  Regulated  UK  Subsidiary,  to the NG
          Company Group (taken as a whole); and

     (b)  is  using  all  reasonable  endeavours  to  implement  the  Year  2000
          Strategy.

19.15 Borrowing Limits

     The  borrowing of Advances or the drawing of Bills under this  Agreement up
     to and including the maximum  amount  available to it under this  Agreement
     will not, when borrowed or drawn,  cause any limit on borrowings or, as the
     case may be, on the  giving of  guarantees  (whether  imposed  by  statute,
     regulation  or  agreement)  or on the  powers  of its  board of  directors,
     applicable to it, to be exceeded.

19.16 ERISA

(a)  Each member of the Controlled Group has fulfilled its obligations under the
     minimum  funding  standards of ERISA and the U.S. Code with respect to each
     Plan  maintained  by such member or any member of the  Controlled  Group to
     which such minimum funding standards apply.

(b)  Each member of the  Controlled  Group is in  compliance  with the  material
     applicable  provisions  of ERISA,  the U.S.  Code and any other  applicable
     United States Federal or State law with respect to each Plan.

(c)  No Reportable Event has occurred with respect to any Plan maintained by the
     Obligors  or any  member of the  Controlled  Group,  and no steps have been
     taken to  reorganise  or terminate  any such Plan or by the Obligors or any
     member of the Controlled  Group to effect a complete or partial  withdrawal
     from any Multi-Employer Plan.

(d)  No member of the Controlled Group has:

     (i)  sought a waiver of the minimum  funding  standard under Section 412 of
          the U.S. Code in respect of any Plan;

    (ii)  failed to make any  contribution  or payment to any Plan,  or made any
          amendment to any Plan,  and no other event,  transaction  or condition
          has occurred which has resulted or could result in the imposition of a
          lien or the  posting of a bond or other  security  under  ERISA or the
          U.S. Code; or

   (iii)  incurred any material,  actual  liability under Title I or Title IV of
          ERISA other than a liability  to the PBGC for premiums  under  Section
          4007 of ERISA.

19.17 U.S. Borrowers

(a)  Each U.S.  Borrower either (i) is not an investment  company required to be
     registered  under the United  States  Investment  Company  Act of 1940,  as
     amended,  or (ii) is exempt from the  registration  provisions  of that Act
     pursuant to an exemption under that Act.

                                      -68-
<PAGE>

(b)  None of the  proceeds  of any  Advance  or Bill will be used,  directly  or
     indirectly  by  any  Obligor,  and  whether   immediately,   ultimately  or
     incidentally,  for any purpose  which results in a violation by any Obligor
     of the provisions of Regulations U, T or X.

(c)  None of the Obligors nor any of their  respective  Subsidiaries are engaged
     principally,  or as one of its  important  activities,  in the  business of
     extending  credit for the  purpose  of buying or  carrying  "margin  stock"
     within the meaning of such Regulation U.

(d)  None of NGG nor any of its  Subsidiaries  is at the date of this  Agreement
     subject  to  regulation  as a "holding  company",  or an  "affiliate"  of a
     "holding company" or a "subsidiary company" of a "holding company",  within
     the meaning of PUHCA.  Following the NEES Acquisition  Completion Date, NGG
     will  be  a  "holding  company"  and  each  of  its  Subsidiaries  will  be
     "subsidiary companies" within the meaning of PUHCA. Without limiting Clause
     19.10  (Authorisations),  NGG and each of its  Subsidiaries  will be at all
     relevant  times in compliance in all material  respects with all applicable
     provisions  of that  Act and  the  rules,  regulations  and  orders  issued
     thereunder  and no  Utilisation  will  result in any  breach or  failure to
     comply with the applicable  provisions of PUHCA and any  applicable  rules,
     regulations and orders issued thereunder.

19.18 Times for making representations and warranties

     The   representations   and   warranties   set  out  in  this   Clause   19
     (Representations and Warranties):

     (a)  in the case of an Obligor:

          (i)  which is a Party on the date of this Agreement,  are made by that
               Obligor  on  that  date  and,   in  the  case  of  Clause   19.13
               (Information Package), on the last day of the Primary Syndication
               Period; and

         (ii)  which  becomes a Party  after the date of this  Agreement,  will,
               except  in the case of  Clause  19.13  (Information  Package)  be
               deemed  to be made by that  Obligor  on the  date it  executes  a
               Borrower Accession  Agreement or Guarantor Accession Agreement as
               the case may be; and

     (b)  (except in the case of Clause 19.13  (Information  Package) and, after
          31st March 2000, Clause 19.14 (Year 2000 Compliance)) are deemed to be
          repeated by the relevant  Borrower and each Guarantor of that Borrower
          on the date of each Utilisation  Request, on each Utilisation Date and
          on the first day of each Interest  Period or Term, as the case may be,
          with reference to the facts and circumstances then existing,

     provided  that NG Company only makes and will only be deemed to repeat each
     such  representation  and warranty with respect to itself, the Regulated UK
     Subsidiaries and the NG Company Group, as applicable.

                                      -69-
<PAGE>

20.  COVENANTS

20.1 Duration and Scope

(a)  The  undertakings  in this  Clause 20 remain in force from the date of this
     Agreement  for so long as any  amount is or may be  outstanding  under this
     Agreement or any Commitment is in force; and

(b)  NG Company gives each of the undertakings set out in Clause 20.2 (Financial
     Information)  to 20.20 (NG  Company  Financial  Covenants)  inclusive  with
     respect to itself and, where applicable, the NG Company Group only.

20.2 Financial Information

NGG shall supply to the Agent in sufficient copies for all the Banks:

     (a)  as soon as the same are available (and in any event within 180 days of
          the end of each of its financial years):

          (i)  the audited consolidated accounts of the Group for that financial
               year; and

         (ii)  the audited  accounts of each  Obligor  (other than NGG) for that
               financial year;

     (b)  as soon as the same are available (and in any event within 120 days of
          the end of the first  half-year of each of its financial  years),  the
          unaudited   consolidated  profit  and  loss  account  or  the  interim
          statement of the Group and of NG Company for that half-year;

     (c)  together with the accounts  specified in paragraphs  (a) (i) and, with
          respect to NG Company, paragraphs (a)(ii) and (b) above, a certificate
          signed by one of its directors and one of its senior  officers (and if
          reasonably  requested  by the  Agent  in the  case of  those  accounts
          specified  in  paragraph  (a)  above  only,  confirmed  by NGG's or NG
          Company auditors, as applicable) setting out in reasonable detail:

          (i)  computations  establishing  compliance or non-compliance  (as the
               case  may be)  with  Clauses  20.15  (Restriction  on  Subsidiary
               Financial Indebtedness) and 20.19 (Group Financial covenants) and
               Clause 20.20 (NG Company Financial Covenants); and

         (ii)  (in the case of those  accounts  specified in paragraph (a) above
               only)  the  aggregate  amount  of the Net Cash  Proceeds  and Net
               Available  Proceeds of all Asset Disposals  falling within Clause
               9.7 (Mandatory  Prepayment from  Significant  Cash Disposals) for
               the relevant financial year; and

        (iii)  at any time on request by the Agent,  a list of the then  current
               Principal Subsidiaries; and

         (iv)  on request by the Agent, the annual published audited accounts of
               any other member of the Group.

                                      -70-
<PAGE>

20.3 Information - Miscellaneous

     Each Obligor shall supply to the Agent:

     (a)  promptly  upon  becoming  aware of them,  details  of any  litigation,
          arbitration   or   administrative   proceedings   which  are  current,
          threatened  or  pending  (and which in the  reasonable  opinion of the
          Obligor,  after  taking  any  appropriate  legal  advice,  there  is a
          reasonable prospect of a determination adverse to the interests of the
          relevant  member of the Group) which are  reasonably  likely to have a
          material adverse effect on the financial  condition of the Group or on
          the  ability  of the  Obligors  (taken  as a whole) to  perform  their
          obligations   under  the   Finance   Documents   (including,   without
          limitation,  the  obligations  of the Initial  Borrowers  under Clause
          20.19  (Group  Financial  covenants)  and  Clause  20.20  (NG  Company
          Financial  Covenants)  and the  obligations  of the  Guarantors  under
          Clause 18 (Guarantee));

     (b)  promptly,  details of all  amendments to each Licence (if any) held by
          an Obligor or a Principal Subsidiary and all material notices received
          by an Obligor or a Principal Subsidiary from the Director or any other
          relevant  authority in any applicable  jurisdiction in relation to its
          Licence;

     (c)  in the case of NGG only, at the same time as they are despatched,  all
          documents  despatched  by NGG to its  shareholders  generally  (or any
          class  of  them)  or  its  creditors  generally  in  their  respective
          capacities as such;

     (d)  as soon as reasonably  practicable,  such further  information  in the
          possession  or  control  of any  member  of the  Group  regarding  its
          financial  condition  as any  Finance  Party  through  the  Agent  may
          reasonably  request and which such member of the Group may  reasonably
          provide having regard to its existing legal  obligations  from time to
          time;

     (e)  within 10 days of the date on which they are filed with the Securities
          and Exchange  Commission,  the Group's  quarterly return (if any) with
          the Securities and Exchange Commission; and

     (f)  promptly,  details of all applications made by it and relevant notices
          and orders  issued to it or  received by it under PUHCA in relation to
          this Agreement or any Utilisation hereunder.

     each in sufficient copies for all of the Banks, if the Agent so requests.

20.4 Notification of Default or Mandatory Prepayment or Cancellation Event

(a)  Each Obligor shall notify the Agent of any Default (and the steps,  if any,
     being taken to remedy it) or any event  specified in Clause 9.6  (Mandatory
     Prepayment  and  Cancellation  on  Change  of  Control)  promptly  upon its
     becoming aware of the same; and

(b)  each Obligor shall notify the Agent  immediately it receives an enforcement
     order made in relation  to it under  Section 25 of the  Electricity  Act or
     under any similar provisions of any applicable Energy Laws.

                                      -71-
<PAGE>

20.5 Compliance Certificates

     NGG or NG Company,  as applicable,  shall supply to the Agent promptly upon
     request  by the  Agent at any  time,  if the Agent  reasonably  believes  a
     Default  may have  occurred,  a  certificate  signed  by two of its  senior
     officers on its behalf  certifying  that no Default is outstanding or, if a
     Default is outstanding, specifying the Default and the steps, if any, being
     taken to remedy it.

20.6 Authorisations

     Each Obligor shall at all relevant times promptly:

     (a)  obtain, maintain and comply with the terms of; and

     (b)  on reasonable  request by the Agent,  supply  certified  copies to the
          Agent of,

     any authorisation  required under any law or regulation including,  without
     limitation,  under PUHCA to enable it to perform its obligations  under, or
     for the validity of, any Finance Document.

20.7 Pari passu ranking

     Each Obligor shall procure that its obligations under the Finance Documents
     do and will rank at least pari passu with all its other  present and future
     unsecured  obligations (subject to the preference of certain obligations in
     the liquidation, bankruptcy or other analogous proceedings in respect of it
     by operation of applicable law).

20.8 Negative pledge

(a)  No Obligor  shall,  and NGG shall procure that no other member of the Group
     will,  create or permit to  subsist  any  Security  Interest  on any of its
     assets.

(b)  Paragraph (a) above does not apply to:

     (i)  any Security  Interest  created with the prior written  consent of the
          Majority Banks;

    (ii)  any Security  Interest granted prior to the date of this Agreement and
          disclosed  to the Agent in writing but only if the  maximum  principal
          amount secured thereby is not subsequently increased;

   (iii)  any Security  Interest by way of title  retention  entered into in the
          ordinary course of business;

    (iv)  any  lien  arising  by  operation  of law in the  ordinary  course  of
          business;

     (v)  any banker's  lien or right of set-off  arising by operation of law in
          the  ordinary  course  of  commercial  banking   transactions  or  any
          contractual set-off  arrangements in the ordinary course of commercial
          banking transactions;

                                      -72-
<PAGE>

    (vi)  any Security  Interest existing over assets acquired after the date of
          this Agreement and existing on the date of acquisition, provided that:

          (A)  the  Security  Interest  is not created in  contemplation  of the
               acquisition of the same; and

          (B)  the maximum  principal  amount secured thereby or the maturity of
               those obligations is not thereafter increased;

   (vii)  any Security  Interest  over the assets of any company which becomes a
          Subsidiary of NGG after the date of this  Agreement and which exist at
          the date on which it becomes a Subsidiary of NGG, but only:

          (A)  to the extent of the  principal  amount  secured by the  Security
               Interest at the date it becomes a Subsidiary of NGG; and

          (B)  if the Security  Interest is not created in  contemplation  of it
               becoming a Subsidiary of NGG;

  (viii)  any  Security  Interest  over goods and/or  documents  of title,  or
          insurance  policies  and sale  contracts  in  relation  to such goods,
          arising in the ordinary  course of trading in connection  with letters
          of credit  and  similar  transactions  where  such  Security  Interest
          secures  only so much of the  acquisition  cost of such goods which is
          required to be paid within 180 days after the date upon which the same
          was first incurred;

    (ix)  any  Security  Interest  created  in  substitution  for  any  Security
          Interest  permitted  pursuant to this Clause  20.8  provided  that the
          substituted Security Interest is over the same asset and the principal
          amount  secured does not exceed the principal  amount  secured on such
          asset prior to the substitution;

     (x)  any Security  Interest created or granted from time to time in respect
          of any Project  Finance  Borrowing  including,  for the  avoidance  of
          doubt,  any  Security  Interest  created or granted by a member of the
          Group in its capacity as a shareholder  of a company  making a Project
          Finance Borrowing over its shareholding in that company (including, in
          the case of a member of the  Group  whose  only  material  assets  are
          shares in the company  incurring  the  Project  Finance  Borrowing)  a
          supporting  floating  charge  over  all or  substantially  all of that
          member's  assets  as  security  for such  Project  Finance  Borrowing,
          provided  that the  right of  recourse  against  such  shareholder  is
          limited to the realisation of the shareholding in that company;

    (xi)  any Security Interest created by a Project Finance Company;

   (xii)  any  Security  Interest  created  or  granted  from  time to time by a
          member  of the Group in its  capacity  as a  shareholder  of a Project
          Finance Company over its  shareholding in that Project Finance Company
          as security for the obligations of such Project Finance Company;

                                      -73-
<PAGE>

  (xiii)  any Security Interest, whether granted prior to or after the date of
          this Agreement,  which is granted by a Subsidiary of NGG  incorporated
          in, or which has its principal place of business in, the United States
          to secure  Financial  Indebtedness of that Subsidiary  permitted under
          sub-clause   (d)(ii)  of  Clause  20.15   (Restriction  on  Subsidiary
          Financial Indebtedness);

   (xiv)  any  Security  Interest  created by a special  purpose  securitisation
          vehicle over its assets where  substantially  all of those assets were
          acquired by that  vehicle  from a member of the Group as part of or to
          facilitate a securitisation  and where the disposal of those assets to
          the securitisation vehicle constitutes a Cash Disposal; and

    (xv)  in  addition  to  each  of  the  Security  Interests  permitted  under
          paragraphs (i) through (xiv) above any other Security Interest whether
          granted  prior to or after the date of this  Agreement  so long as the
          aggregate  outstanding  principal  amount  of  Financial  Indebtedness
          secured by all the Security  Interests  permitted under this paragraph
          (xv) by all  members  of the Group  (including  NG  Company)  does not
          exceed (pound)80,000,000 or its equivalent in other currencies.

20.9 Disposals

(a)  No Obligor  shall and NGG shall  procure  that no other member of the Group
     will,  either  in a  single  transaction  or in a series  of  transactions,
     whether  related or not and  whether  voluntarily  or  involuntarily  sell,
     transfer, grant or lease or otherwise dispose (each a "disposal") of all of
     any part of its assets.

(b)  Paragraph (a) above does not apply to:

     (i)  disposals  to a wholly  owned  member of the Group not being a Project
          Finance Company or from a member of the Group to an Obligor;

    (ii)  disposals  made in the  ordinary  course of trading  of the  disposing
          entity; or

   (iii)  disposals  of assets in exchange  for other  assets to the extent that
          the assets  acquired are comparable or superior as to value,  type and
          quality or earnings generation; or

    (iv)  disposals of obsolete assets; or

     (v)  the  payment of cash  dividends  or  distributions  of any kind to NGG
          shareholders  in  accordance  with the Companies Act 1985 or any other
          relevant law; or

    (vi)  disposals to which the Majority Banks have agreed in writing; or

   (vii)  disposals by way of factoring or  discounting  of  receivables  to the
          extent such  factoring or  discounting  is carried out in the ordinary
          course of business or for administrative purposes and, in either case,
          the primary purpose is not the raising of finance; or

  (viii)  disposals of assets on arms' length terms, provided that:

                                      -74-
<PAGE>

          (A)  in the case of Significant Cash Disposals, the appropriate amount
               of the Net  Available  Proceeds  is  applied in  accordance  with
               Clause  9.7   (Mandatory   Prepayment   from   Significant   Cash
               Disposals); and

          (B)  a disposal of all or any  substantial  part of NGG's  interest in
               the equity  share  capital of Energis  can only be effected if it
               constitutes  a  Cash  Disposal  for  consideration  payable  upon
               completion of the disposal; or

    (ix)  any other disposals not otherwise permitted under paragraphs (b)(i) to
          (viii)  above,  where the  aggregate  Disposal  Proceeds  received  or
          receivable by the Group  (including NG Company) for all such disposals
          in  aggregate  over  the  life  of  the  Facilities  does  not  exceed
          (pound)50,000,000 or its equivalent, but excluding for the purposes of
          calculating the  (pound)50,000,000 cap any disposal where the Disposal
          Proceeds from such  disposal or a related  series of disposals is less
          than (pound)10,000,000 or its equivalent in other currencies.

20.10 Insurance

(a)  Each Obligor  shall ensure that all its property and assets of an insurable
     nature  are kept  insured  against  loss or damage by fire and other  risks
     normally  insured  in a sum or sums which that  Obligor  considers  prudent
     having regard to the nature and extent of the assets to be insured.

(b)  Each  Obligor  shall  promptly  pay all  premiums  and do all other  things
     necessary to maintain in place the insurance required to be taken out by it
     pursuant to paragraph (a) above.

20.11 Compliance with law

     Each  Obligor  will and will  procure  that each of its  Subsidiaries  will
     comply with, or take all reasonable practical and available steps to comply
     with, the  requirements  of all rules,  regulations and orders for the time
     being of the Secretary of State and the Director and any relevant authority
     in any applicable jurisdiction relating to the Energy and Network Business,
     applicable to that Obligor or its Subsidiaries.

20.12 Licence

(a)  Each Obligor  shall comply and NGG shall procure that each  Regulated  U.S.
     Subsidiary  shall  comply,  or shall take all  reasonable  practicable  and
     available  steps to comply  (or,  as the case may be,  take all  reasonable
     practicable  and  available  steps to procure  compliance)  in all material
     respects with the terms of its Licence (if any) provided  that, in the case
     of a Regulated U.S. Subsidiary,  such Licence is material in the context of
     that  entity's  business  taken as a whole.  No Obligor shall and NGG shall
     procure that no Regulated  U.S.  Subsidiary  shall act outside the scope of
     its  authority  thereunder  (if any) or consent,  without the prior written
     consent of the Majority  Banks,  to any  revocation of its Licence (if any)
     other than where the  revocation is effected in connection  with a transfer
     under  Clause 29.5  (Additional  Guarantors)  and the  relevant  Additional
     Guarantor is before or  simultaneously  with such revocation  issued with a
     Licence in  identical  terms  (save as to  parties)  to the  Licence  being
     revoked  provided  that, in the case of a Regulated U.S.  Subsidiary,  such
     Licence is  material in the context of that  entity's  business  taken as a
     whole.

                                      -75-
<PAGE>

(b)  No Obligor shall,  and NGG shall procure that no Regulated U.S.  Subsidiary
     shall, consent to any material modification of the terms of its Licence (if
     any) if such modification would have (whether  immediately or in the course
     of time) a material adverse effect on the ability of the Obligors (taken as
     a whole) to perform their obligations  under this Agreement  following such
     modification.

20.13 Change of business

Except with the prior consent of the Majority  Banks,  NGG shall procure that no
substantial  change is made to the general nature of the businesses of the Group
(taken as a whole) from that  carried on at the date of this  Agreement  outside
the Energy and Network Businesses and other infrastructure network businesses of
the Group from time to time, or the  acquisition  of,  and/or  operation of, the
National Air Traffic Control System.

20.14 Maintenance of status

Each Obligor  shall,  except as otherwise  permitted in this  Agreement,  in all
material  respects do all such things as are necessary to maintain its corporate
existence.

20.15 Restriction on Subsidiary Financial Indebtedness

NGG shall procure that no other member of the Group shall create, assume, incur,
guarantee or otherwise be liable in respect of or have outstanding any Financial
Indebtedness other than:

     (a)  any Financial Indebtedness under this Agreement;

     (b)  any Financial Indebtedness owing by one member of the Group to another
          member of the Group, or any guarantee,  indemnity or similar assurance
          issued by any Subsidiary in connection with the Financial Indebtedness
          of another Subsidiary that is permitted under this Clause 20.15;

     (c)  any  Financial  Indebtedness  incurred  by any  Subsidiary  which is a
          Guarantor;

     (d)  subject to  paragraph  (c) of Clause 9.7  (Mandatory  Prepayment  from
          Significant Cash Disposals) any other Financial  Indebtedness (whether
          or not  secured  under  sub-paragraph  (b) of  Clause  20.8  (Negative
          Pledge))  incurred  by any  Subsidiary  provided  that  the  aggregate
          outstanding principal amount of such Financial  Indebtedness (but less
          Cash or Cash  Equivalents (as defined in Clause 20.19 (Group Financial
          Covenants)) held by the relevant Subsidiary):

          (i)  of  all   Subsidiaries   (including   NG   Company)   other  than
               Subsidiaries incorporated or whose principal place of business is
               in the  United  States  does not exceed  (pound)2,000,000,000  in
               aggregate; and

         (ii)  of all  Subsidiaries  incorporated  or whose  principal  place of
               business   is   in   the   United   States,   does   not   exceed
               US$2,500,000,000 in aggregate during the period ending six months
               from the NEES  Acquisition  Completion Date and thereafter,  (and
               subject to Clause 9.9 (Mandatory Prepayment and Cancellation for

                                      -76-
<PAGE>

               Subsidiary    Financial    Indebtedness))    does   not    exceed
               US$1,500,000,000 in aggregate,

          or, in each case,  its equivalent in other  currencies  converted into
          Dollars or Sterling as  applicable at the time of  calculation  at the
          Agent's Spot Rate of Exchange.

20.16 Compliance with Year 2000 Strategy

     Each Obligor will:

     (a)  procure that all steps necessary to implement the  requirements of the
          Director  to the  extent  applicable  to it (if  any) in  relation  to
          avoiding the possible  adverse  effects of the  occurrence of the Year
          2000  on the  capacity  of any  computer  system,  software  or  other
          equipment  owned or used by that Obligor by each Principal  Subsidiary
          and each Regulated UK Subsidiary  which is critical to the business of
          the  Group  (taken  as a whole)  or in the case of NG  Company  or any
          Regulated  UK  Subsidiary,  to the  business  of the NG Company  Group
          (taken as a whole) are taken prior to 31st December, 1999; and

     (b)  use its  reasonable  endeavours to procure that the Year 2000 Strategy
          is implemented prior to 31st December, 1999.

20.17 Environmental Undertakings

     Each Obligor will, and NGG will procure that each other member of the Group
     will, comply in all respects with:

     (a)  all applicable Environmental Laws; and

     (b)  the terms and conditions of all Environmental  Approvals applicable to
          it,

     where  failure to do so could  reasonably  be  expected  to have a material
     adverse  effect on the ability of the  Obligors  taken  together to perform
     their  obligations  under the Finance  Documents  and for this purpose will
     implement  procedures to monitor  compliance  and contain  liability  under
     Environmental Laws.

20.18 Repayment of 1996 Facility Agreement

     NGG and NG Company shall ensure that:

     (a)  the  proceeds of any  Utilisation  are first  applied in  repayment or
          prepayment  of  any  amounts   outstanding  under  the  1996  Facility
          Agreement to the extent not otherwise repaid;

     (b)  from the first  Utilisation  Date  under  this  Agreement  no  further
          drawings are made under the 1996 Facility Agreement; and

     (c)  all undrawn  commitments  thereunder  are cancelled with effect from a
          date no later than the first Utilisation Date under this Agreement.

                                      -77-
<PAGE>

20.19 Group Financial covenants

(a)  In this Clause and Clause 20.20:

     "Cash and Cash Equivalents"

     means:

     (i)  cash in hand and deposits with any bank or other financial institution
          (including cash in hand and deposits denominated in freely convertible
          foreign currencies);

    (ii)  securities  issued or  guaranteed  by the UK  government or the United
          States Government;

   (iii)  (A)  debt securities rated at least A1 by Moody's or AA+ by S&P; and

          (B)  commercial paper rated at least A1 by Moody's and P1 by S&P; and

    (iv)  any other  instrument,  security or investment  approved in writing by
          the Majority Banks,

     to the  extent  beneficially  owned  by a  member  of  the  Group  free  of
     restrictions  (other than exchange  control  requirements) on withdrawal or
     transfer  (in the  case of cash)  and (in all  cases)  unencumbered  by any
     Security Interests other than Security Interests  permitted under paragraph
     (b) of Clause 20.8 (Negative Pledge);

     "Consolidated EBITDA"

     means in respect of any period,  Consolidated  Profits Before  Interest and
     Tax for that period  after adding back  depreciation  and  amortisation  of
     goodwill;

     "Consolidated Profits Before Interest and Tax"

     means, in respect of any period, the consolidated net pre-taxation  profits
     on  operating  activities  (after  adding  back Net  Interest  Payable  and
     excluding any Exceptional Items and after adding back  restructuring  costs
     incurred as a result of the NEES  Acquisition) of the Group for that period
     based on the latest accounts  supplied to the Agent under paragraphs (a) or
     (b) of Clause 20.2 (Financial Information), as the case may be;

     "Consolidated Total Net Debt"

     means the aggregate  principal amount (or amounts  equivalent to principal,
     howsoever described)  comprised in the Financial  Indebtedness of the Group
     (excluding  amounts  referred  to in  paragraph  (g) of the  definition  of
     Financial Indebtedness) at the time calculated on a consolidated basis less
     Cash and Cash Equivalents held by any member of the Group;

     "Exceptional Items"

     has the  meaning  given to it in FRS3  issued by the  Accounting  Standards
     Board; and

                                      -78-
<PAGE>

     "Net Interest Payable"

     means, in relation to any period, all interest,  acceptance  commission and
     all other  continuing,  regular or periodic costs,  charges and expenses in
     the nature of interest (whether paid,  payable or capitalised)  incurred by
     the Group in effecting, servicing or maintaining all Financial Indebtedness
     of the Group less all  interest  and other  similar  income  receivable  by
     members of the Group  during  that  period (but only to the extent the same
     accrue  and  are  receivable  by the  Group  in a  freely  convertible  and
     transferable  currency) in each case as  determined  from the  consolidated
     financial  statements  relating to that period  delivered under Clause 20.2
     (Financial Information);

     and for the purposes of this Clause 20.19 only,  the  definition of "Group"
     shall  include  all  Subsidiaries  of NGG (whose  accounts  are  ordinarily
     consolidated  with  the  accounts  of NGG  in  accordance  with  accounting
     principles  generally  accepted and applied in the United Kingdom which are
     Subsidiaries  of NGG on the last day of each period of 12 months  ending on
     an End Date  provided  that if any  Subsidiary  has joined the Group during
     such 12 month period  Consolidated  Profits Before Interest and Tax and Net
     Interest  Payable shall be adjusted as  appropriate  to include the Profits
     Before  Interest and Tax and Net Interest  Payable for such  Subsidiary for
     the full 12 month  period  and if any other  Subsidiary  has left the Group
     during such 12 month period  Consolidated  Profits Before  Interest and Tax
     and Net Interest  Payable  shall be adjusted to exclude the Profits  Before
     Interest and Tax and Net Interest  Payable for such  Subsidiary)  and shall
     exclude any associated companies.

(b)  NGG shall procure that:

     (i)  the ratio of Consolidated  EBITDA to Net Interest  Payable is not, for
          each period of 12 months ending on the last day of each financial year
          and each financial half year of the Group (an "End Date"):

          (A)  where such End Date falls  during the period  from and  including
               the  Signing  Date  up to  and  including  the  NEES  Acquisition
               Completion Date less than 5 to 1; or

          (B)  where such End Date falls after the NEES  Acquisition  Completion
               Date, less than 3 to 1.

    (ii)  the  ratio  of the  Consolidated  Total  Net  Debt on each End Date to
          Consolidated  EBITDA for each  period of 12 months  ending on that End
          Date:

          (A)  where such End Date falls  during the period  from and  including
               the  Signing  Date  up to  but  excluding  the  NEES  Acquisition
               Completion Date, does not exceed 3 to 1;

          (B)  where  such End  Date  falls  on or  after  the NEES  Acquisition
               Completion Date but on or prior to the 31st March, 2002, does not
               exceed 4.75 to 1; and

          (C)  where such End Date falls after the NEES  Acquisition  Completion
               Date and after 31st March, 2002, does not exceed 4.5 to 1.

                                      -79-
<PAGE>

(c)  For the purposes of  calculating  the ratio of  Consolidated  EBITDA to Net
     Interest  Payable  for the  periods  ending  on the  first End Date and the
     second End Date falling after the Signing Date only,  the definition of Net
     Interest Payable will exclude the exceptional  charges to be incurred by NG
     Company in  terminating  certain out of the money swaps up to a limit of an
     aggregate of (pound)55,000,000 or its equivalent.

(d)  In the event of any material change in law or in generally  accepted United
     Kingdom  accounting  principles,  standards and practices as applied to the
     Original  Group  Accounts,  NGG and the Agent shall,  at the request of the
     Agent,  negotiate  in good faith in order to arrive at such  amendments  to
     this Clause as are  necessary to give the Banks  equivalent  but no greater
     protection to that contained in this Clause prior to the relevant change.

(e)  If NGG and the Agent are unable to agree in  writing  on those  amendments,
     then  such  amendments  shall  be made as a firm of  chartered  accountants
     acceptable to, and instructed by (after  consultation  with NGG ) the Agent
     shall  certify  as being  necessary  to give the  Banks  equivalent  but no
     greater  protection to that  contained in this Clause prior to the relevant
     change.  Any such firm of chartered  accountants shall act in this capacity
     as an expert,  not an arbitrator,  and its decision shall be binding on all
     the Parties.

20.20 NG Company Financial Covenants

(a)  In this Clause 20.20:

     "NG Company EBIT"

     means, in respect of any period, the consolidated net pre-taxation  profits
     of NG Company on  operating  activities  (after  adding back NG Company Net
     Interest Payable and excluding any Exceptional Items) for that period based
     on the latest accounts supplied to the Agent under paragraph (a)(ii) or (b)
     of Clause 20.2 (Financial Information); and

     "NG Company Net Interest Payable"

     means, in respect of any period,  all interest,  acceptance  commission and
     all other  continuing,  regular or periodic costs,  charges and expenses in
     the nature of interest (whether paid,  payable or capitalised)  incurred by
     NG  Company  in   effecting,   servicing  or   maintaining   all  Financial
     Indebtedness  of NG Company  less all  interest  and other  similar  income
     receivable  by NG Company  during  that  period (but only to the extent the
     same accrue and are  receivable by NG Company in a freely  convertible  and
     transferable  currency)  in each  case as  determined  from  the  financial
     statements  relating to that period  delivered under Clause 20.2 (Financial
     Information).

(b)  NG Company  shall  procure  that the ratio of NG Company EBIT to NG Company
     Net  Interest  Payable is not,  for each period of 12 months  ending on the
     last day of each financial  year and each  financial  half year,  less than
     2.5:1.

(c)  In the event of any material change in law or in generally  accepted United
     Kingdom  accounting  principles,  standards and practices as applied to the
     Original  NG Company  Accounts,  NG  Company  and the Agent  shall,  at the
     request of the Agent, negotiate in good faith in order to arrive

                                      -80-
<PAGE>

     at such  amendments  to this  Clause  as are  necessary  to give the  Banks
     equivalent but no greater protection to that contained in this Clause prior
     to the relevant change.

(d)  If NG  Company  and the  Agent  are  unable  to agree in  writing  on those
     amendments,  then  such  amendments  shall  be made as a firm of  chartered
     accountants  acceptable to, and instructed by (after  consultation  with NG
     Company)  the Agent  shall  certify  as being  necessary  to give the Banks
     equivalent but no greater protection to that contained in this Clause prior
     to the relevant change. Any such firm of chartered accountants shall act in
     this capacity as an expert,  not an  arbitrator,  and its decision shall be
     binding on all the Parties.

21.  DEFAULT

21.1 Events of Default

(a)  Subject to paragraph (b) below,  each of the events set out in Clauses 21.2
     (Non-payment)  to 21.17 (Material  Adverse  Change) (both  inclusive) is an
     Event of Default  (whether or not caused by any reason  whatsoever  outside
     the control of any Obligor or any other person).

(b)  Where any of the  events  listed in  Clauses  21.2  (Non-payment)  to 21.17
     (Material  Adverse  Change)  below  occurs in relation to any member of the
     Group other than NG Company or another  member of the NG Company Group then
     that event will constitute an Event of Default for the purposes of Facility
     A,  Facility B and  Facility C only and not for the purposes of Facility D.
     Where any such event occurs in relation to NG Company or another  member of
     the NG  Company  Group it will  constitute  an Event of  Default  under all
     Facilities.

21.2 Non-payment

     An Obligor  does not pay  within  three  Business  Days of the due date any
     amount payable by it under the Finance Documents at the place at and in the
     currency in which it is expressed to be payable.

21.3 Breach of other obligations

(a)  An Obligor does not comply with Clause 20.19 (Group Financial covenants) or
     Clause 20.20 (NG Company Financial covenants).

(b)  An Obligor  does not comply with any  provision  of the  Finance  Documents
     applicable to it (other than those referred to in paragraph (a) above or in
     Clause 21.2  (Non-payment))  and such failure (if capable of remedy  before
     the expiry of such period) continues unremedied for a period of thirty (30)
     days from the date on which the Agent  gives  notice to NGG  requiring  the
     same to be remedied.

21.4 Misrepresentation

     A representation,  warranty or statement made or repeated by any Obligor in
     or in connection with any Finance Document or in any document  delivered by
     or on  behalf  of any  Obligor  under or in  connection  with  any  Finance
     Document is  incorrect  in any  material  respect when made or deemed to be
     made or repeated.

                                      -81-
<PAGE>

21.5 Cross-default

(a)  Subject to paragraph (b) below:

     (i)  any Financial  Indebtedness  of a member of the Group is not paid when
          due or within any originally applicable grace period;

    (ii)  an event of default  howsoever  described  occurs  under any  document
          relating to Financial Indebtedness of a member of the Group;

   (iii)  any  Financial   Indebtedness   of  a  member  of  the  Group  becomes
          prematurely  due and  payable or is placed on demand as a result of an
          event of default (howsoever described);

    (iv)  any commitment for, or underwriting of, any Financial  Indebtedness of
          a member  of the Group is  cancelled  or  suspended  as a result of an
          event of default  howsoever  described) under the document relating to
          that Financial Indebtedness; or

     (v)  any Security Interest securing  Financial  Indebtedness over any asset
          of a member of the Group becomes  enforceable by reason of an event of
          default howsoever described,

     so long as:

     (A)  for the  purposes  of  Facility  A,  Facility  B and  Facility  C, the
          aggregate principal amount of any such Financial Indebtedness incurred
          by any member of the Group (including NG Company); or

     (B)  for the purposes of Facility D, the aggregate principal amount of such
          Financial Indebtedness incurred by the NG Company Group,

     in each case is equal to or exceeds  (pound)40,000,000 or its equivalent in
     other currencies.

(b)  For  the  purposes  of  this  Clause  21.5  the   definition  of  Financial
     Indebtedness shall exclude:

     (i)  Project Finance Borrowings; and

    (ii)  Until  the  date  falling  six  months  after  the  NEES   Acquisition
          Completion  Date,  Financial  Indebtedness  of any  member of the NEES
          Group outstanding as at the date it became a member of the Group.

21.6 Insolvency

(a)  NGG, NG Company, a Principal Subsidiary or a Regulated UK Subsidiary (other
     than a Project  Finance  Company)  is, or is deemed for the purposes of any
     law to be unable to pay its debts as they fall due or to be  insolvent,  or
     admits inability to pay its debts as they fall due; or

(b)  NGG, NG Company, a Principal Subsidiary or a Regulated UK Subsidiary (other
     than a Project  Finance  Company)  suspends  making  payments on all or any
     class of its debts or announces  an  intention to do so or a moratorium  is
     declared in respect of any of its indebtedness; or

                                      -82-
<PAGE>

(c)  NGG, NG Company, a Principal Subsidiary or a Regulated UK Subsidiary (other
     than a  Project  Finance  Company)  by  reason  of  financial  difficulties
     generally begins negotiations with one or more of its creditors with a view
     to the readjustment or rescheduling of any of its indebtedness.

21.7 Insolvency proceedings

(a)  Any step (including petition, proposal or convening a meeting) is taken, by
     reason of financial difficulties, with a view to a composition,  assignment
     or scheme of arrangement with any creditors of NGG, NG Company, a Principal
     Subsidiary or a Regulated UK Subsidiary; or

(b)  a meeting of NGG, NG  Company,  a Principal  Subsidiary  or a Regulated  UK
     Subsidiary is convened for the purpose of  considering  any  resolution for
     (or to  petition  for) its  winding-up  or its  administration  or any such
     resolution is passed; or

(c)  any person presents a petition for the winding-up or for the administration
     of NGG, NG Company,  a Principal  Subsidiary  or a Regulated UK  Subsidiary
     other than a petition  which is frivolous  and  vexatious  and which is not
     struck out within 14 days of its presentation; or

(d)  any order for the  winding-up  or  administration  of NGG,  NG  Company,  a
     Principal Subsidiary or a Regulated UK Subsidiary is made; or

(e)  any other step  (including  petition,  proposal or  convening a meeting) is
     taken  with a view to the  rehabilitation,  administration,  custodianship,
     liquidation,   winding-up  or  dissolution  of  or  any  other   insolvency
     proceedings  involving  NGG,  NG  Company,  a  Principal  Subsidiary  or  a
     Regulated UK Subsidiary.

21.8 Appointment of receivers and managers

(a)  Any  liquidator,  trustee in  bankruptcy,  judicial  custodian,  compulsory
     manager,  receiver,  administrative receiver,  administrator or the like is
     appointed  in respect of NGG,  NG  Company,  a  Principal  Subsidiary  or a
     Regulated UK Subsidiary or any part of its assets; or

(b)  the directors of NGG, NG Company, a Principal  Subsidiary or a Regulated UK
     Subsidiary requests the appointment of a liquidator, trustee in bankruptcy,
     judicial custodian, compulsory manager, receiver,  administrative receiver,
     administrator or the like; or

(c)  any other steps are taken to enforce any Security Interest over any part of
     the assets of NGG, NG Company,  a Principal  Subsidiary  or a Regulated  UK
     Subsidiary.

21.9 Creditors' process

     Any attachment,  sequestration,  distress or execution affects any asset of
     NGG, NG Company, a Principal Subsidiary or a Regulated UK Subsidiary and is
     not discharged within 21 days.

                                      -83-
<PAGE>

21.10 Analogous proceedings

     There occurs, in relation to NGG, NG Company,  a Principal  Subsidiary or a
     Regulated UK Subsidiary,  any event anywhere  which,  in the opinion of the
     Majority  Banks,  is  analogous  to any of those  mentioned in Clauses 21.6
     (Insolvency) to 21.9 (Creditors' process) (both inclusive).

21.11 Cessation of business

     NG  Company  (or  a  Regulated  UK  Subsidiary)  ceases  to  carry  on  its
     Transmission Business pursuant to its Transmission Licence (if any), unless
     its  Transmission  Licence  (or the  relevant  part  thereof) is granted or
     transferred  to another  member of the Group and that  other  member of the
     Group becomes an Additional Guarantor with respect to NG Company.

21.12 Unlawfulness

     It is or becomes unlawful for any Obligor to perform any of its obligations
     under the Finance Documents.

21.13 Guarantee

     The guarantee of any Guarantor under Clause 18 (Guarantee) is not effective
     or is alleged by an Obligor to be ineffective for any reason.

21.14 Ownership of the Obligors

     Any Obligor (other than NGG) is not or ceases to be a Subsidiary of NGG, or
     NG Company or, after the NEES Acquisition  Completion Date, NEES, is not or
     ceases to be a wholly-owned Subsidiary of NGG.

21.15 Compliance with laws and regulations

     An Obligor,  or a Regulated U.S. Subsidiary fails to comply in all material
     respects with all applicable  provisions of any Energy Law applicable to it
     or with its  Licence  (if any) and such  failure  to comply  is  reasonably
     likely to have a material adverse effect on the ability of the Obligors (as
     a  whole)  to  perform  their   obligations  under  the  Finance  Documents
     (including,  without  limitation,  the obligations of the Initial Borrowers
     under Clause 20.19 (Group Financial covenants) and Clause 20.20 (NG Company
     Financial  covenants) and the obligations of the Guarantors under Clause 18
     (Guarantee)).

21.16 Revocation and modification of Licences

     An Obligor's Licence or the Licence of a Regulated U.S. Subsidiary is:

     (a)  revoked or surrendered other than where the revocation or surrender is
          effected in relation to a transfer to another  member of the Group (or
          any notice of  revocation is issued by the Secretary of State or other
          relevant  authority under the applicable Energy Laws) and, in the case
          of a Regulated U.S. Subsidiary such revocation or surrender (or notice
          of revocation) is reasonably  likely to have a material adverse effect
          on the ability of the

                                      -84-
<PAGE>

          Obligors  (taken as a whole) to perform  their  obligations  under the
          Finance Documents (including,  without limitation,  the obligations of
          NGG under  Clause  20.19 (Group  Financial  covenants)  and NG Company
          under  Clause  20.20  (NG  Company   Financial   covenants)   and  the
          obligations of the Guarantors under Clause 18 (Guarantee)); or

     (b)  modified, other than where the modification is effected in relation to
          a transfer  to another  member of the  Group,  in any manner  which is
          reasonably  likely to have a material adverse effect on the ability of
          the Obligors (taken as a whole) to perform their obligations under the
          Finance Documents (including,  without limitation,  the obligations of
          NGG under  Clause  20.19 (Group  Financial  covenants)  and NG Company
          under  Clause  20.20  (NG  Company   Financial   covenants)   and  the
          obligations of the Guarantors under Clause 18 (Guarantee)).

21.17 Material Adverse Change

     Any event occurs in relation to the Group (taken as a whole) or in the case
     of Facility D in relation to the NG Company Group which is likely to have a
     material  adverse effect on the ability of the Obligors  (taken as a whole)
     or  in  the  case  of  Facility  D on  NG  Company  and  the  Regulated  UK
     Subsidiaries  which are Obligors  (taken as a whole),  to comply with their
     obligations under the Finance Documents.

21.18 Acceleration

(a)  On and at any time  after the  occurrence  of an Event of  Default  for the
     purposes  of  Facility  A, B or C which is not also an Event of Default for
     the  purposes of Facility D, the Agent may,  and will if so directed by the
     Majority Banks, by notice to NGG:

     (i)  cancel the Total  Facility  A, Total  Facility B and Total  Facility C
          Commitments; and/or

    (ii)  demand that all the  Facility A,  Facility B and  Facility C Advances,
          together with accrued  interest,  and all other amounts  accrued under
          this  Agreement  (and payable by an Obligor  other than NG Company) be
          immediately  due and payable,  whereupon they will become  immediately
          due and payable; and/or

   (iii)  demand that all the Facility A,  Facility B and Facility C Advances be
          payable on demand,  whereupon they will immediately  become payable on
          demand.

(b)  On and at any time  after the  occurrence  of an Event of  Default  for the
     purposes  of  Facility  D the Agent  may,  and will if so  directed  by the
     Majority Banks, by notice to NGG:

     (i)  cancel the Total Commitments; and/or

    (ii)  declare  that NG  Company's  obligations  under Clause 8.4 (Payment of
          Bills) in respect of all  outstanding  Bills are  immediately  due and
          payable,  whereupon  they will  become  immediately  due and  payable;
          and/or

                                      -85-
<PAGE>

   (iii)  demand that all the Advances,  together with accrued interest, and all
          other amounts  accrued under this  Agreement and payable by an Obligor
          be immediately due and payable, whereupon they will become immediately
          due and payable; and/or

    (iv)  demand that all the Advances be payable on demand, whereupon they will
          immediately become payable on demand.

22.  THE AGENT AND THE ARRANGERS

22.1 Appointment and duties of the Agent

(a)  Subject to paragraph (f) of Clause 22.15  (Resignation of the Agent),  each
     Finance Party (other than the Agent) irrevocably  appoints the Agent to act
     as its agent under and in connection with the Finance Documents.

(b)  Each Finance Party irrevocably authorises the Agent on its behalf to:

     (i)  perform the duties and to exercise the rights,  powers and discretions
          that are specifically  delegated to it under or in connection with the
          Finance Documents,  together with all other incidental rights,  powers
          and discretions; and

     (ii) execute as agent for that Finance Party each Finance Document to which
          the Agent is a party.

(c)  The Agent shall have only those  duties  which are  expressly  specified in
     this Agreement.  Those duties are solely of a mechanical and administrative
     nature.

22.2 Role of the Arranger

     Except as otherwise  specifically  provided in this Agreement,  no Arranger
     has any  obligations  of any kind to any other Party under or in connection
     with any Finance Document.

22.3 Relationship

     The relationship between the Agent and the other Finance Parties is that of
     agent and principal only.  Nothing in this Agreement  constitutes the Agent
     as trustee or  fiduciary  for any other  Party or any other  person and the
     Agent need not hold in trust any moneys paid to it for a Party or be liable
     to account for interest on those moneys.

22.4 Majority Banks' directions

     The  Agent  will be  fully  protected  if it acts in  accordance  with  the
     instructions  of the Majority Banks in connection  with the exercise of any
     right,  power or discretion or any matter not expressly provided for in the
     Finance  Documents.  Any such instructions given by the Majority Banks will
     be binding on all the Banks. In the absence of such  instructions the Agent
     may act as it considers to be in the best interests of all the Banks.

                                      -86-
<PAGE>

22.5 Delegation

     The Agent may act under the Finance  Documents  through its  personnel  and
     agents.

22.6 Responsibility  for  documentation

     Neither the Agent nor any Arranger is responsible to any other Party for:

     (a)  the execution, genuineness, validity, enforceability or sufficiency of
          any Finance Document or any other document;

     (b)  the collectability of amounts payable under any Finance Document; or

     (c)  the accuracy of any statements (whether written or oral) made in or in
          connection with any Finance Document.

22.7 Default

     (a)  The Agent is not  obliged to monitor or enquire as to whether or not a
          Default  has  occurred  and  the  Agent  will  not be  deemed  to have
          knowledge  of the  occurrence  of a  Default.  However,  if the  Agent
          receives notice from a Party  referring to this Agreement,  describing
          the  alleged  Default  and  stating  that it  believes  the event is a
          Default, the Agent shall promptly notify the Banks.

     (b)  The Agent may  require the  receipt of  security  satisfactory  to it,
          whether  by way of  payment  in  advance  or  otherwise,  against  any
          liability or loss which it will or may incur in taking any proceedings
          or action  arising out of or in connection  with any Finance  Document
          before it commences those proceedings or takes that action.

22.8 Exoneration

     (a)  Without limiting  paragraph (b) below, the Agent will not be liable to
          any other  Party for any  action  taken or not taken by it under or in
          connection  with any Finance  Document,  unless directly caused by the
          Agent's gross negligence or wilful misconduct.

     (b)  No Party may take any  proceedings  against any  officer,  employee or
          agent of the Agent in respect of any claim it might have  against  the
          Agent or in  respect  of any act or  omission  of any kind  (including
          negligence or wilful misconduct) by that officer, employee or agent in
          relation to any Finance Document.

22.9 Reliance

     The Agent may:

     (a)  rely on any  notice  or  document  believed  by it to be  genuine  and
          correct  and to have been  signed  by, or with the  authority  of, the
          proper person;

                                      -87-
<PAGE>

     (b)  rely on any  statement  made by a director  or  employee of any person
          regarding any matters which may reasonably be assumed to be within his
          knowledge or within his power to verify; and

     (c)  engage,  pay for and  rely on legal  or  other  professional  advisers
          selected by it (including  those in the Agent's  employment  and those
          representing a Party other than the Agent.

22.10 Credit approval and appraisal

     Without  affecting  the  responsibility  of  any  Obligor  for  information
     supplied by it or on its behalf in  connection  with any Finance  Document,
     each Bank confirms that it:

     (a)  has made  its own  independent  investigation  and  assessment  of the
          financial  condition  and  affairs  of each  Obligor  and its  related
          entities in connection  with its  participation  in this Agreement and
          has not relied  exclusively on any  information  provided to it by the
          Agent or an Arranger in connection with any Finance Document; and

     (b)  will   continue  to  make  its  own   independent   appraisal  of  the
          creditworthiness  of each Obligor and its related  entities  while any
          amount is or may be  outstanding  under the Finance  Documents  or any
          Commitment is in force.

22.11 Information

(a)  The Agent shall promptly  forward to the person concerned the original or a
     copy of any  document  which is  delivered to the Agent by a Party for that
     person.

(b)  The  Agent  shall  promptly  supply  a Bank  with a copy of  each  document
     received  by  the  Agent  under  Clauses  4  (Conditions  Precedent),  29.4
     (Additional Borrowers) or 29.5 (Additional  Guarantors) upon the request of
     that Bank.

(c)  Except where this Agreement  specifically provides otherwise,  the Agent is
     not obliged to review or check the accuracy or completeness of any document
     it forwards to another Party.

(d)  Except as provided above, the Agent has no duty:

     (i)  either initially or on a continuing basis to provide any Bank with any
          credit or other  information  concerning  the  financial  condition or
          affairs of any Obligor or any related  entity of any Obligor,  whether
          coming  into its  possession  or that of any of its  related  entities
          before, on or after the date of this Agreement; or

     (ii) unless  specifically  requested to do so by a Bank in accordance  with
          this  Agreement,  to request any  certificates or other documents from
          any Obligor.

22.12 The Agent and the Arrangers individually

(a)  If it is a Bank, each of the Agent and any Arranger has the same rights and
     powers under this Agreement as any other Bank and may exercise those rights
     and powers as though it were not the Agent or an Arranger.

                                      -88-
<PAGE>

(b)  Each of the Agent, and any Arranger may:

     (i)  carry on any business with an Obligor or its related entities;

    (ii)  act  as  agent  or  trustee  for,  or in  relation  to  any  financing
          involving, an Obligor or its related entities; and

   (iii)  retain any profits or  remuneration  in connection with its activities
          under this Agreement or in relation to any of the foregoing.

(c)  Each  Obligor  irrevocably  authorises  the Agent to  disclose to the other
     Finance  Parties any information  which,  in the reasonable  opinion of the
     Agent, is received by it in its capacity as the Agent.

22.13 Indemnities

(a)  Without limiting the liability of any Obligor under the Finance  Documents,
     each Bank shall  forthwith  on demand  indemnify  the Agent for that Bank's
     proportion  of any  liability  or loss  incurred  by the  Agent  in any way
     relating to or arising  out of it acting as an agent,  except to the extent
     that  the  liability  or  loss  arises  directly  from  the  Agent's  gross
     negligence or wilful misconduct.

(b)  A Bank's proportion of the liability or loss set out in paragraph (a) above
     is the proportion  which the Original  Sterling  Amount and Original Dollar
     Amount, as the case may be, of its Advances and Bills (if any) bears to the
     Original Sterling Amount and Original Dollar Amount, as the case may be, of
     all Advances and Bills outstanding on the date of the demand.  If, however,
     no  Advances  or Bills  are  outstanding  on the date of  demand,  then the
     proportion  will be that which each  Bank's  Commitment  bears to the Total
     Commitments  at the date of demand or, if the Total  Commitments  have been
     cancelled,   bore  to  the  Total  Commitments   immediately  before  being
     cancelled.

(c)  NGG shall  forthwith on demand  reimburse each Bank for any payment made by
     it under paragraph (b) above.

22.14 Compliance

(a)  The Agent may refrain  from doing  anything  which  might,  in its opinion,
     constitute a breach of any law or regulation or be otherwise  actionable at
     the suit of any  person,  and may do anything  which,  in its  opinion,  is
     necessary  or  desirable  to  comply  with  any  law or  regulation  of any
     jurisdiction.

(b)  Without  limiting  paragraph  (a) above,  the Agent need not  disclose  any
     information  relating to any Obligor or any of its related  entities if the
     disclosure  might,  in the opinion of the Agent  constitute a breach of any
     law or regulation or any duty of secrecy or confidentiality or be otherwise
     actionable at the suit of any person.

                                      -89-
<PAGE>

22.15 Resignation of the Agent

(a)  Notwithstanding its irrevocable appointment, the Agent may resign by giving
     notice to the Banks and NGG, in which case the Agent may forthwith  appoint
     one of its  Affiliates as successor  Agent or,  failing that,  the Majority
     Banks may appoint a successor Agent.

(b)  If the appointment of a successor Agent is to be made by the Majority Banks
     but they have not, within 30 days after notice of resignation,  appointed a
     successor  Agent which  accepts the  appointment,  the retiring  Agent may,
     after prior consultation with NGG, appoint a successor Agent.

(c)  The  resignation of the retiring Agent and the appointment of any successor
     Agent will both become  effective only upon the successor  Agent  notifying
     all  the  Parties   that  it  accepts  the   appointment.   On  giving  the
     notification,  the  successor  Agent will  succeed to the  position  of the
     retiring Agent and the term "Agent" will mean the successor Agent.

(d)  The retiring Agent shall,  at its own cost, make available to the successor
     Agent such  documents  and  records  and  provide  such  assistance  as the
     successor  Agent may reasonably  request for the purposes of performing its
     functions as the relevant Agent under this Agreement.

(e)  Upon its resignation  becoming effective,  this Clause 22 shall continue to
     benefit the  retiring  Agent in respect of any action taken or not taken by
     it under or in connection with the Finance Documents while it was the Agent
     and,  subject to paragraph (d) above,  it shall have no further  obligation
     under any Finance Document.

(f)  The Agent shall,  forthwith  upon being  requested to do so by the Majority
     Banks,  resign in accordance  with  paragraph (a) above.  However,  in this
     event,  the Agent may not appoint one of its Affiliates as successor  Agent
     as contemplated by paragraph (a) above and the Majority Banks shall appoint
     a successor Agent.

22.16 Banks

(a)  The Agent may treat each Bank as a Bank and entitled to payments under this
     Agreement  and as  acting  through  its  Facility  Office(s)  until  it has
     received  notice from the Bank to the contrary not less than five  Business
     Days prior to any relevant payment.

(b)  The Agent may at any time,  and shall if requested to do so by the Majority
     Banks, convene a meeting of the Banks.

22.17 Chinese Wall

     In acting as Agent or as an Arranger, the agency and syndication's division
     of each of the Agent  and the  Arrangers  shall be  treated  as a  separate
     entity from its other divisions and departments.  Any information  acquired
     at any time by the Agent, or any Arranger otherwise than in the capacity of
     Agent or Arranger through its agency and syndication's division (whether as
     financial  advisor to any member of the Group or otherwise)  may be treated
     as  confidential  by the  Agent or  Arranger  and shall not be deemed to be
     information  possessed by the Agent or Arranger in their  capacity as such.
     Each Finance Party  acknowledges  that the Agent and the Arrangers may, now
     or in the

                                      -90-
<PAGE>

     future, be in possession of, or provided with,  information relating to the
     Obligors  which  has not or  will  not be  provided  to the  other  Finance
     Parties.  Each Finance Party agrees that,  except as expressly  provided in
     this  Agreement,  neither  the  Agent  nor any  Arranger  will be under any
     obligation to provide,  or under any liability for failure to provide,  any
     such information.

23.  FEES

23.1 Front-end fees

NGG shall pay to the Agent on behalf of the Arrangers  fees with respect to each
Facility on their final allocation in accordance with the Fee Letter between the
Arrangers and NGG.

23.2 Commitment fee

(a)  NGG shall pay to the Agent for each Bank  commitment  fees in the following
     amounts:

     (i)  with respect to Facility A:

          (A)  during the period prior to the NEES Acquisition  Completion Date,
               0.225 per cent. per annum; and

          (B)  thereafter,  the  amount per annum that is the lesser of 0.25 per
               cent. per annum and half of the lowest  Applicable Margin then in
               effect for Facility A Advances as calculated  in accordance  with
               Clause 10.6 (Applicable Margin and Acceptance Commission Rate);

    (ii)  with respect to Facility B:

          (A)  during the period prior to the NEES Acquisition  Completion Date,
               0.225 per cent. per annum; and

          (B)  thereafter,  the  amount per annum that is the lesser of 0.25 per
               cent. per annum and half of the lowest  Applicable Margin then in
               effect for Facility A Advances as calculated  in accordance  with
               Clause 10.6 (Applicable Margin and Acceptance Commission Rate);

   (iii)  with respect to Facility C, 0.15 per cent. per annum; and

    (iv)  with respect to Facility D:

          (A)  during the period prior to the NEES Acquisition  Completion Date,
               0.20 per cent. per annum; and

          (B)  thereafter,  the amount per annum that is the lesser of 0.225 per
               cent per annum and half of the then lowest Applicable Margin then
               in effect for  Facility D Advances as  calculated  in  accordance
               with Clause 10.6  (Applicable  Margin and  Acceptance  Commission
               Rate).

                                      -91-
<PAGE>

(b)  Accrued  commitment  fees are  payable  quarterly  in  arrears on the daily
     undrawn,  uncancelled  amount  of  the  relevant  Facility  A  Commitments,
     Facility B Commitments, Facility C Commitments or Facility D Commitments on
     each day from the  Signing  Date with the first  payment  due three  months
     after the Signing Date. Accrued commitment fee is also payable to the Agent
     for  the  relevant  Bank(s)  on the  cancelled  amount  of its  Facility  A
     Commitment,  Facility B  Commitment,  Facility C  Commitment  or Facility D
     Commitment  as the case may be at the time the  cancellation  takes effect.
     Accrued commitment fees are payable,  in the case of Facility A, Facility B
     and Facility C, in Dollars and, in the case of Facility D, in Sterling.

23.3 Term-out Fee and Facility C Availability Extension Fee

     On the day on which a Term-out Advance is made pursuant to paragraph (b) of
     Clause 8.3  (Repayment  of Facility C Advances) and on the first day of any
     extended  Facility C  Availability  Period under Clause 5.10  (Extension of
     Facility C Availability  Period) (as  applicable),  NGG shall pay the Agent
     for  distribution  pro rata to the Banks which  participate in the relevant
     Term-out  Advance or which  consent to extend the  Facility C  Availability
     Period (as applicable) a fee or fees calculated as follows:

(a)  (i)  in the case of Term-out Advances with a term equal to or less than one
          year, a fee of 0.05 per cent.  flat of the aggregate  Original  Dollar
          Amount of all Term-out Advances made on that date; or

    (ii)  in the case of Term-out  Advances with a term greater than one year, a
          fee of 0.10 per cent. flat of the aggregate  Original Dollar Amount of
          all Term-out Advances made on that date; and

(b)  in the case of an extension of the Facility C Availability Period, a fee of
     0.05 per cent. flat on the aggregate Original Dollar Amount of the Facility
     C  Commitments  of those Banks  which have agreed to extend the  Facility C
     Availability Period.

23.4 Agency fee

     NGG shall pay to the Agent for its own  account  agency fees in the amounts
     agreed in the Fee  Letter  between  NGG and the  Agent.  The  agency fee is
     payable  annually in advance.  The first  payment of this fee is payable on
     the date of this Agreement and each  subsequent  payment is payable on each
     Anniversary  for so long as any amount is or may be outstanding  under this
     Agreement or any Commitment is in force.

23.5 VAT

     Any fee  referred to in this Clause 23 is  exclusive of any value added tax
     or any other tax which might be chargeable in connection  with that fee. If
     any value added tax or other tax is so chargeable,  it shall be paid by NGG
     at the same time as it pays the relevant fee.

                                      -92-
<PAGE>

24.  EXPENSES

24.1 Initial and special costs

     NGG shall forthwith on demand pay the Agent and the Arrangers the amount of
     all reasonable costs and expenses (including legal fees) incurred by any of
     them in connection with:

(a)  the arranging, underwriting and primary syndication of the Facilities;

(b)  the negotiation, preparation, printing and execution of:

     (i)  this Agreement and any other documents referred to in this Agreement;

     (ii) any  other  Finance  Document  (other  than  a  Transfer  Certificate)
          executed after the date of this Agreement; and

(c)  any amendment, waiver, consent or suspension of rights (or any proposal for
     any of the foregoing)  requested by or on behalf of an Obligor and relating
     to a Finance Document or a document referred to in any Finance Document.

24.2 Enforcement costs

     NGG shall  forthwith on demand pay to each Finance  Party the amount of all
     reasonable  costs and  expenses  (including  legal fees)  incurred by it in
     connection  with the  enforcement  of, or the  preservation  of any  rights
     under, any Finance Document.

25.  STAMP DUTIES

     NGG shall pay and forthwith on demand  indemnify each Finance Party against
     any liability it incurs in respect of any stamp,  registration  and similar
     tax  which  is or  becomes  payable  in  connection  with the  entry  into,
     performance or enforcement of any Finance Document.

26.  INDEMNITIES

26.1 Currency indemnity

(a)  If a Finance Party receives an amount in respect of an Obligor's  liability
     under the Finance Documents or if that liability is converted into a claim,
     proof,  judgement  or order in a  currency  other  than the  currency  (the
     "contractual  currency")  in which the  amount is  expressed  to be payable
     under the relevant Finance Document:

     (i)  that Obligor  shall  indemnify  that Finance  Party as an  independent
          obligation against any loss or liability arising out of or as a result
          of the conversion;

    (ii)  if the amount  received by the Finance Party,  when converted into the
          contractual  currency  at a market  rate in the  usual  course  of its
          business,  is less than the amount owed in the  contractual  currency,
          the Obligor  concerned  shall  forthwith on demand pay to that Finance
          Party an amount in the contractual currency equal to the deficit; and

                                      -93-
<PAGE>

   (iii)  the Obligor  shall pay to the Finance  Party  concerned  on demand any
          exchange  costs  and  taxes  payable  in  connection   with  any  such
          conversion.

(b)  Each Obligor  waives any right it may have in any  jurisdiction  to pay any
     amount under the Finance  Documents in a currency  other than that in which
     it is expressed to be payable.

26.2 Other Indemnities

     The Obligors shall forthwith on demand indemnify each Finance Party against
     any loss or liability which that Finance Party incurs as a consequence of:

(a)  the occurrence of any Default;

(b)  the   operation   of   Clause   21.18    (Acceleration)    or   Clause   32
     (Redistributions);

(c)  any payment of principal  (or any similar  payment in respect of a Bill) or
     an overdue  amount being  received  from any source  otherwise  than on its
     Maturity Date or the last day of its Interest  Period and, for the purposes
     of this  paragraph  (c), the Maturity Date of an overdue amount is the last
     day of each Default Term (as defined in Clause 10.4 (Default interest)); or

(d)  (other  than by reason  of  negligence  or  default  by a Finance  Party) a
     Utilisation not being effected after a Borrower has delivered a Utilisation
     Request for that Utilisation.

     The  Obligors'  liability in each case includes any loss of margin or other
     loss or expense on account of funds borrowed, contracted for or utilised to
     fund any amount  payable under any Finance  Document,  any amount repaid or
     prepaid or any Advance or Bill.

26.3 Acquisition indemnity

     NGG  will  indemnify  each  Finance  Party  and  each of  their  respective
     Affiliates  and  directors,   officers,  agents  and  employees  (each,  an
     "Indemnified  Person") against all losses,  claims,  damages,  liabilities,
     charges and related  expenses which such  Indemnified  Person may be or may
     become  subject  to  resulting  from or in any way  related  to the  making
     available of credit  facilities under this Agreement in connection with the
     implementation  of the NEES Acquisition or the EUA Acquisition  (whether or
     not either  acquisition  is  completed)  except to the extent that the same
     results from the Indemnified Person's negligence or wilful default.

27.  CALCULATIONS AND EVIDENCE OF DEBT

27.1 Accounts

     Accounts  maintained by a Finance Party in connection  with this  Agreement
     are prima facie evidence of the matters to which they relate.

27.2 Certificates and Determination

(a)  Any  certification  or determination by a Finance Party of a rate or amount
     under this  Agreement  shall be  supported  (other  than in relation to any
     calculation of interest) by reasonable evidence of

                                      -94-
<PAGE>

     how the  calculation  has been made and, if so supported,  shall be, in the
     absence of manifest error,  conclusive  evidence of the matters to which it
     relates.

(b)  Any  determination  by the  Agent of a rate of  interest  shall  be, in the
     absence of manifest error, conclusive.

(c)  Nothing  in  this  Clause   obliges  any  Finance  Party  to  disclose  any
     confidential information.

27.3 Calculations

     Interest  (including any applicable  Reserve Asset Cost) and the commitment
     fee payable under Clause 23.2  (Commitment  fee) accrue from day to day and
     are calculated on the basis of the actual number of days elapsed and a year
     of 365 days,  or, in the case of interest or commitment  fees payable on an
     amount denominated in Dollars or an Optional Currency only, 360 days (or as
     otherwise  agreed between the Agent and NGG in accordance with usual market
     practice). The Acceptance Commission Rate is calculated on the basis of the
     number of days in the relevant Tenor and a year of 365 days.

28.  AMENDMENTS AND WAIVERS

28.1 Procedure

(a)  Subject to Clause 28.2 (Exceptions),  any term of the Finance Documents may
     be amended or waived with the  agreement of NGG and the Majority  Banks and
     (in so far as its position as Agent is affected)  the Agent.  The Agent may
     effect,  on behalf of the Majority  Banks,  an amendment to which they have
     agreed.

(b)  The Agent  shall  promptly  notify the other  Parties of any  amendment  or
     waiver effected under paragraph (a) above, and any such amendment or waiver
     shall be binding on all the Parties.

28.2 Exceptions

(a)  An amendment or waiver which relates to:

     (i)  the definition of "Majority Banks" in Clause 1.1 (Definitions);

    (ii)  an  extension  of the date for, or a decrease in an amount  (including
          any fees payable or the Applicable Margin) or a change in the currency
          of, any payment under the Finance Documents;

   (iii)  an increase in a Bank's Commitment;

    (iv)  a term of a Finance  Document which expressly  requires the consent of
          each Bank;

     (v)  the incorporation of Additional Borrowers otherwise than in accordance
          with Clause 29.4 (Additional Borrowers); or

    (vi)  Clause 18 (Guarantee), Clause 32 (Redistributions) or this Clause 28,

                                      -95-
<PAGE>

     may not be effected without the consent of each Bank.

28.3 Waiver and Remedies Cumulative

     The rights of each Finance Party under the Finance Documents:

     (a)  may be exercised as often as necessary;

     (b)  are  cumulative and not exclusive of its rights under the general law;
          and

     (c)  may be waived only in writing and specifically.

     Delay in  exercising or  non-exercise  of any such right is not a waiver of
     that right.

29.  CHANGES TO THE PARTIES

29.1 Transfers by Obligors

     No  Obligor  may  assign,  transfer,  novate or  dispose  of any of, or any
     interest in, its rights and/or obligations under the Finance Documents.

29.2 New Banks

(a)  a Bank (the "Existing Bank") may, at any time,  assign,  transfer or novate
     any of its rights and/or obligations under this Agreement to another person
     (the "New  Bank")  without  the prior  consent of or notice to any  Obligor
     except that:

     (i)  prior to completion of the Primary  Syndication  Period,  the Existing
          Bank may only assign,  transfer or novate (or seek to assign, transfer
          or novate)  its  rights  and/or  obligations  in  accordance  with the
          syndication strategy agreed between the Arrangers and NGG;

    (ii)  the prior written  consent of NGG (such consent not to be unreasonably
          withheld or delayed) is required for any such assignment,  transfer or
          novation  with  respect  to  Facilities  A  or C  prior  to  the  NEES
          Acquisition  Completion  Date and such  consent will be deemed to have
          been  given  if,  within  fourteen  days  of  receipt  by  NGG  of  an
          application for consent, it has not been expressly refused; and

   (iii)  in the case of a  partial  assignment,  transfer  or  novation  of its
          rights  and/or  obligations  under any  Facility  a minimum  amount of
          US$10,000,000  (or its  equivalent)  in  aggregate  and a  minimum  of
          US$1,000,000  (or its equivalent) per Facility (unless to an Affiliate
          of a Bank or to another  Bank or the Agent agrees  otherwise)  must be
          assigned, transferred or novated.

(b)  A transfer of obligations will be effective only if either:

     (i)  the  obligations are transferred by way of novation in accordance with
          Clause 29.3 (Procedure for transfers); or

                                      -96-
<PAGE>

    (ii)  the New Bank  confirms to the Agent and NGG that it  undertakes  to be
          bound by the terms of this  Agreement as a Bank in form and  substance
          satisfactory to the Agent. On the transfer becoming  effective in this
          manner the Existing  Bank shall be relieved of its  obligations  under
          this  Agreement  to the extent  that they are  transferred  to the New
          Bank.

(c)  Nothing in this Agreement  restricts the ability of a Bank to  sub-contract
     an  obligation  if that Bank remains  liable under this  Agreement for that
     obligation.

(d)  On each occasion that an Existing Bank assigns, transfers or novates any of
     its rights and/or  obligations under this Agreement after completion of the
     Primary  Syndication  Period  (other  than to an  Affiliate),  the New Bank
     shall, on the date the  assignment,  transfer and/or novation takes effect,
     pay to the Agent for its own account a fee of (pound)1,000.

(e)  An Existing Bank is not responsible to a New Bank for:

     (i)  the execution, genuineness, validity, enforceability or sufficiency of
          any Finance Document or any other document;

    (ii)  the collectability of amounts payable under any Finance Document; or

   (iii)  the accuracy of any  statements  (whether  written or oral) made in or
          in connection with any Finance Document.

(f)  Each New Bank confirms to the Existing  Bank and the other Finance  Parties
     that it:

     (i)  has made  its own  independent  investigation  and  assessment  of the
          financial  condition  and  affairs  of each  Obligor  and its  related
          entities in connection  with its  participation  in this Agreement and
          has not relied  exclusively on any  information  provided to it by the
          Existing Bank in connection with any Finance Document; and

    (ii)  will   continue  to  make  its  own   independent   appraisal  of  the
          creditworthiness  of each Obligor and its related  entities  while any
          amount is or may be outstanding under this Agreement or any Commitment
          is in force.

(g)  Nothing in any Finance Document obliges an Existing Bank to:

     (i)  accept  a  re-transfer  from a New  Bank of any of the  rights  and/or
          obligations assigned or transferred or novated under this Clause; or

    (ii)  support  any  losses  incurred  by  the  New  Bank  by  reason  of the
          non-performance by any Obligor of its obligations under this Agreement
          or otherwise.

(h)  Any reference in this Agreement to a Bank includes a New Bank. but excludes
     a Bank  if no  amount  is or may be  owed to or by  that  Bank  under  this
     Agreement and its Commitment has been cancelled or reduced to nil.

                                      -97-
<PAGE>

29.3 Procedure for transfers

(a)  A transfer by way of novation is effected if:

     (i)  the  Existing  Bank  and  the New  Bank  deliver  to the  Agent a duly
          completed certificate  substantially in the form set out in Schedule 6
          (a "Transfer  Certificate")  with such changes as the Agentapproves to
          achieve a substantially  similar effect (which may be delivered by fax
          and  confirmed by delivery of a hard copy original but the fax will be
          effective irrespective of whether confirmation is received; and

    (ii)  the Agent executes it.

(b)  Each Party  (other  than the  Existing  Bank and the New Bank)  irrevocably
     authorises the Agent to execute any duly completed Transfer  Certificate on
     its behalf and the Agent agrees  promptly to provide a copy of the Transfer
     Certificate to NGG after it has executed it.

(c)  To the extent that they are  expressed to be the subject of the transfer in
     the  Transfer  Certificate)  on the  date  of  execution  of  the  Transfer
     Certificate by the Agent (or the date specified in the Transfer Certificate
     if later):

     (i)  the Existing Bank and the other Parties (the "existing  Parties") will
          be  released  from their  obligations  to each other (the  "discharged
          obligations");

    (ii)  the New Bank and the existing Parties will assume obligations  towards
          each other which differ from the discharged obligations only in so far
          as they are owed to or assumed by the New Bank instead of the Existing
          Bank;

   (iii)  the rights of the Existing Bank against the existing  Parties and vice
          versa (the "discharged rights") will be cancelled; and

    (iv)  the New Bank and the existing Parties will acquire rights against each
          other which differ from the  discharged  rights only in so far as they
          are  exercisable  by or against the New Bank  instead of the  Existing
          Bank,

     all on the date of execution of the Transfer  Certificate  by the Agent or,
     if later, the date specified in the Transfer Certificate.

(d)  If the effective date of a novation is after the date a Utilisation Request
     is  received  by the Agent  but  before  the date a  requested  Advance  is
     disbursed to or Bill accepted for the relevant Borrower,  the Existing Bank
     shall be  obliged to  participate  in that  Advance or accept  that Bill in
     respect of its discharged obligations notwithstanding that novation and the
     New Bank shall  reimburse the Existing Bank for its  participation  in that
     Advance or Bill and all interest, fees and acceptance commission thereon up
     to the date of  reimbursement  (in each case to the extent  attributable to
     the discharged  obligations)  within three Business Days of the Utilisation
     Date of that Advance or Bill.

                                      -98-
<PAGE>

29.4 Additional Borrowers

(a)  If NGG wishes one of its wholly-owned  Subsidiaries to become an Additional
     Borrower,  then it may (after prior  consultation with the Agent and, if it
     is incorporated  outside of the United  Kingdom,  with the prior consent of
     all the Banks not to be  unreasonably  withheld or delayed)  deliver to the
     Agent, the documents listed in Part III of Schedule 2 (Conditions Precedent
     Documents).

(b)  On delivery of a Borrower  Accession  Agreement,  executed by the  relevant
     Subsidiary and NGG, the Subsidiary  will,  subject to the  restrictions set
     out in Clause 5.1 (Receipt of Utilisation  Requests),  become an Additional
     Borrower  (provided that,  where that Subsidiary is not incorporated in the
     United  Kingdom,  the prior written  consent of all Banks shall be required
     not to be unreasonably  withheld or delayed).  However,  it may not utilise
     any of the Facilities until the Agent confirms to the other Finance Parties
     and NGG that it has received all the documents referred to in paragraph (a)
     above in form and substance satisfactory to it.

(c)  Delivery of a Borrower Accession Agreement,  executed by the Subsidiary and
     NGG,  constitutes   confirmation  by  that  Subsidiary  and  NGG  that  the
     representations  and warranties set out in Clause 19  (Representations  and
     warranties)  and to be made by them on the date of the  Borrower  Accession
     Agreement  are  correct,  as if  made  with  reference  to  the  facts  and
     circumstances then existing.

29.5 Additional Guarantors

(a)  If NGG wishes one of its  Subsidiaries  to become an  Additional  Guarantor
     then it may (after prior  consultation with the Agent) deliver to the Agent
     the  documents  listed  in  Part IV of  Schedule  2  (Conditions  Precedent
     Documents). If NG Company transfers all or part of its Transmission Licence
     or all or part of the  Transmission  Business  carried on  pursuant  to its
     Transmission  Licence to another member of the Group, such person will be a
     Regulated  UK  Subsidiary  and will  become an  Additional  Guarantor  with
     respect to NG Company and will deliver to the Agent the documents listed in
     Part IV of Schedule 2 (Conditions Precedent Documents).

(b)  On execution and delivery of a Guarantor  Accession Agreement together with
     the documents  referred to in paragraph (c) below, the relevant  Subsidiary
     will become an Additional Guarantor.

(c)  NGG shall procure that, at the same time as a Guarantor Accession Agreement
     is delivered to the Agent,  there is also  delivered to the Agent all those
     other  documents  listed in Part IV of  Schedule  2  (Conditions  Precedent
     Documents), in each case in form and substance satisfactory to the Agent.

(d)  Delivery of a Guarantor  Accession  Agreement,  executed by the Subsidiary,
     constitutes  confirmation by that Subsidiary that the  representations  and
     warranties set out in Clause 19 (Representations and Warranties) to be made
     by it on the date of the Guarantor  Accession  Agreement are correct, as if
     made with reference to the facts and circumstances then existing.

29.6 Reference Banks

                                      -99-
<PAGE>

     If a Reference  Bank (or, if a  Reference  Bank is not a Bank,  the Bank of
     which it is an  Affiliate)  ceases to be one of the Banks,  the Agent shall
     (in  consultation  with NGG) appoint  another Bank to replace the Reference
     Bank.

29.7 Additional Payments

If following:

(a)  any  assignment,  transfer  or novation of all or any part of the rights or
     obligations of a Bank to a New Bank under Clause 29.2 (New Banks); or

(b)  any change in a Bank's Facility Office,

     any  additional  amount is required to be paid to the New Bank or that Bank
     (as the case may be) by any  Obligor  under  Clause 13 (Taxes) or Clause 15
     (Increased  Costs) of this  Agreement as a result of laws,  regulations  or
     requirements  of any central  bank or other  fiscal  monetary or  competent
     authority  (whether or not having the force of law) or other  circumstances
     in each case in force at the time of that assignment, transfer, novation or
     change,  then the New Bank or Bank (acting through its new Facility Office)
     will be  entitled  to receive  any such  amount only to the extent that the
     Existing Bank or Bank (acting  through its old Facility  Office) would have
     been so entitled had there been no assignment, transfer, novation or change
     in Facility Office (as the case may be).

29.8 Register

     The Agent shall keep a register  of all the  Parties  and shall  supply any
     other  Party  (at that  Party's  expense)  with a copy of the  register  on
     request.

29.9 Release of Borrowers

     Any Borrower (other than the Initial  Borrowers) may cease to be a Borrower
     if at any time,  whilst  there are no sums which are or may be  outstanding
     from that Borrower under the Finance  Documents and there is no outstanding
     Utilisation  Request in relation to that Borrower,  it delivers a notice to
     that effect to the Agent.  Upon  delivery  of any such notice the  relevant
     Borrower  shall  cease to be a Borrower  and shall,  subject as provided in
     this Clause,  cease to have any obligations  under the Finance Documents in
     its capacity (only) as a Borrower but without  affecting any obligations it
     may have as a Guarantor or in any other capacity.

29.10 Release or Removal of Guarantors

     Any Guarantor which is not a Borrower (other than NGG), may, at the request
     of NGG and if no  Default  is  continuing  or would  result,  cease to be a
     Guarantor by entering into a  supplemental  agreement to this  Agreement at
     the cost of NGG in such  form as the  Agent may  reasonably  require  which
     shall  discharge that  Guarantor's  obligations  as a Guarantor  under this
     Agreement.

                                      -100-
<PAGE>

30.  DISCLOSURE OF INFORMATION

     A Bank may disclose to its professional  advisers, to any of its Affiliates
     or any other  person  with whom it is  proposing  to enter,  or has entered
     into, any kind of transfer, participation or other agreement in relation to
     this Agreement:

     (a)  a copy of any Finance Document;

     (b)  a copy of the Information Memorandum; and

     (c)  any  information  which that Bank has acquired  under or in connection
          with any Finance Document,

     provided  that a Bank shall not disclose any such  information  to a person
     other than one of its  Affiliates  unless that person has  provided to that
     Bank  a  confidentiality  undertaking  addressed  to  that  Bank  and  NGG,
     substantially  in the form set out in Schedule 10 (Form of  Confidentiality
     Undertakings) or such other form as NGG may approve.

31.  SET-OFF

     A Finance Party may set off any matured obligation owed by an Obligor under
     this  Agreement (to the extent  beneficially  owned by that Finance  Party)
     against any obligation  (whether or not matured) owed by that Finance Party
     to that  Obligor,  regardless  of the place of payment,  booking  branch or
     currency  of  either  obligation.  If  the  obligations  are  in  different
     currencies,  the Finance  Party may convert  either  obligation at a market
     rate of  exchange in its usual  course of  business  for the purpose of the
     set-off. If either obligation is unliquidated or unascertained, the Finance
     Party  may set off in an  amount  estimated  by it in good  faith to be the
     amount of that obligation.

32.  REDISTRIBUTIONS

32.1 Redistribution

     If any amount owing by an Obligor  under this  Agreement to a Finance Party
     (the "recovering  Finance Party") is discharged by payment,  set-off or any
     other  manner  other than  through the Agent in  accordance  with Clause 12
     (Payments) (a "recovery"), then:

     (a)  the recovering  Finance Party shall,  within 3 Business  Days,  notify
          details of the recovery to the Agent;

     (b)  the Agent shall  determine  whether  the  recovery is in excess of the
          amount which the recovering  Finance Party would have received had the
          recovery been received by the Agent and distributed in accordance with
          Clause 12 (Payments);

     (c)  subject to Clause 32.3  (Exceptions),  the  recovering  Finance  Party
          shall, within 3 Business Days of demand by the Agent, pay to the Agent
          an amount (the "redistribution") equal to the excess;

                                      -101-
<PAGE>

     (d)  the Agent  shall treat the  redistribution  as if it were a payment by
          the Obligor  concerned  under Clause 12  (Payments)  and shall pay the
          redistribution  to the  Finance  Parties  (other  than the  recovering
          Finance Party) in accordance with Clause 12.7 (Partial payments); and

     (e)  after payment of the full redistribution, the recovering Finance Party
          will be subrogated  to the portion of the claims paid under  paragraph
          (d) above,  and that Obligor will owe the  recovering  Finance Party a
          debt which is equal to the redistribution,  immediately payable and of
          the type originally discharged.

32.2 Reversal of Redistribution

     If under Clause 32.1 (Redistribution):

     (a)  a recovering Finance Party must subsequently return a recovery,  or an
          amount measured by reference to a recovery, to an Obligor; and

     (b)  the recovering  Finance Party has paid a redistribution in relation to
          that recovery,

     each  Finance  Party  shall,  within  3  Business  Days  of  demand  by the
     recovering  Finance  Party  through  the Agent,  reimburse  the  recovering
     Finance Party all or the appropriate  portion of the redistribution paid to
     that Finance  Party.  Thereupon the  subrogation in paragraph (e) of Clause
     32.1  (Redistribution)  will  operate  in  reverse  to  the  extent  of the
     reimbursement.

32.3 Exceptions

(a)  A recovering Finance Party need not pay a redistribution to the extent that
     it would not,  after the  payment,  have a valid claim  against the Obligor
     concerned in the amount of the redistribution  pursuant to paragraph (e) of
     Clause 32.1 (Redistribution).

(b)  Where a recovering  Finance  Party has received a recovery as a consequence
     of the  satisfaction  or  enforcement  of a judgment  obtained in any legal
     action  or  proceedings  to  which  it  is  a  party  it  need  not  pay  a
     redistribution to any Finance Party which (being entitled to do so) did not
     join  in  with  the  recovering  Finance  Party  in  the  legal  action  or
     proceedings,  unless the recovering Finance Party did not give prior notice
     of its  involvement  in the legal  action or  proceedings  to the Agent for
     disclosure to all the Banks.

33.  SEVERABILITY

     If a provision of any Finance  Document is or becomes  illegal,  invalid or
     unenforceable in any jurisdiction, that shall not affect:

     (a)  the legality,  validity or  enforceability in that jurisdiction of any
          other provision of the Finance Documents; or

     (b)  the legality,  validity or  enforceability  in other  jurisdictions of
          that or any other provision of the Finance Documents.

                                      -102-
<PAGE>

34.  COUNTERPARTS

     This Agreement may be executed in any number of counterparts,  and this has
     the same effect as if the signatures on the  counterparts  were on a single
     copy of this Agreement

35.  NOTICES

35.1 Giving of notices

     All  notices  or other  communications  under or in  connection  with  this
     Agreement  shall be given in writing or facsimile.  Any such notice will be
     deemed to be given as follows:

(a)  if in writing, when delivered;

(b)  if by facsimile, when received.

     However,  a notice given in  accordance  with the above but received  other
     than on a Business Day or after business hours in the place of receipt will
     only be  deemed  to be  given  on the  next  Business  Day in  that  place.
     Facsimile   notices  to  the  Agent  must  be  confirmed  in  writing  (but
     non-receipt  of that  confirmation  will not  affect  the  validity  of the
     original facsimile notice).

35.2 Notices

     The address,  facsimile and telephone  numbers and contact  details of each
     Party for all notices and other matters  under or in  connection  with this
     Agreement are:

     (i)  identified  with its signature below (or, in the case of any Bank that
          becomes a Party  pursuant  to a Transfer  Certificate,  set out in the
          relevant Transfer Certificate); or

     (ii) as  otherwise  notified by that Party for this purpose to the Agent by
          not less than five Business Days' notice.

36.  GOVERNING LAW AND JURISDICTION

36.1 Governing Law

     This Agreement is governed by English law.

36.2 Submission to Jurisdiction

(a)  The  Obligors  irrevocably  agree for the  benefit  of each of the  Finance
     Parties that the Courts of England  shall have  exclusive  jurisdiction  in
     relation to any claim, dispute or difference  concerning a Finance Document
     and in  relation  to, or in relation to the  enforcement  of, any  judgment
     relating to any such claim,  dispute or difference and accordingly  submits
     to the jurisdiction of the English Courts.

                                      -103-
<PAGE>

(b)  Each Obligor  irrevocably waives any right that it may have to object to an
     action being brought in the Courts of England, to claim that the action has
     been  brought  in an  inconvenient  forum or to claim  that the  Courts  of
     England do not have jurisdiction.

(c)  Nothing in this Clause  shall (or be construed so as to) limit the right of
     any  Finance  Party  to  bring  legal  proceedings  in any  other  court of
     competent  jurisdiction  (including,  without  limitation  the courts  have
     jurisdiction  by  reason  of  an  Obligor's  place  of   incorporation)  or
     concurrently on more than one jurisdiction),  whether by way of substantive
     action, ancillary relief, enforcement or otherwise.

36.3 Service of process

     Without prejudice to any other mode of service, each Obligor:

     (a)  irrevocably  appoints  NGG as its  agent for  service  of  process  in
          relation to any  proceedings  before the English  courts in connection
          with any Finance Document;

     (b)  agrees that failure by a process agent to notify the relevant  Obligor
          of the process will not invalidate the proceedings concerned;

     (c)  consents to the service of process relating to any such proceedings by
          prepaid  posting of a copy of the  process to its address for the time
          being applying under Clause 35.2 (Notices); and

     (d)  agrees that if the  appointment  of any person  mentioned in paragraph
          (a)  above  ceases  to  be  effective,   the  relevant  Obligor  shall
          immediately  appoint a further  person in England to accept service of
          process on its behalf in England and, failing such appointment  within
          15 days,  the Agent is entitled to appoint  such a person by notice to
          the Obligors.

36.4 Forum convenience and enforcement abroad

     Each  Obligor  agrees  that a  judgment  or order of a court of  England in
     connection with a Finance  Document is conclusive and binding on it and may
     be enforced against it in the courts of any other jurisdiction.

     IN WITNESS whereof this Agreement has been entered into on the date set out
     above.

                                      -104-
<PAGE>

                                   SCHEDULE 1

                                    The Banks

                                     Part I

                        Facility A Banks and Commitments

Banks                                                       Commitments
                                                                US$

ABN AMRO Bank N.V.                                          141,666,666
Barclays Bank PLC                                           141,666,666
The Chase Manhattan Bank                                    141,666,667
Deutsche Bank AG London                                     116,666,667
Deutsche Morgan Grenfell (C.I.) Limited                      25,000,000
Dresdner Bank AG London Branch                              141,666,667
Midland Bank plc                                            141,666,667
                                                    ============================
                      Facility A Total Commitments          850,000,000
                                                    ============================


                                     Part II

                        Facility B Banks and Commitments

Banks                                                       Commitments
                                                                US$

ABN AMRO Bank N.V.                                           91,666,667
Barclays Bank PLC                                            91,666,667
The Chase Manhattan Bank                                     91,666,667
Deutsche Bank AG London                                      91,666,667
Dresdner Bank AG London Branch                               91,666,666
Midland Bank plc                                             91,666,666
                                                   =============================
                      Facility B Total Commitments          550,000,000
                                                   =============================

                                      -105-
<PAGE>

                                    Part III

                        Facility C Banks and Commitments

Banks                                                       Commitments
                                                                US$

ABN AMRO Bank N.V.                                          225,000,000
Barclays Bank PLC                                           225,000,000
The Chase Manhattan Bank                                    225,000,000
Deutsche Bank AG London                                     225,000,000
Dresdner Bank AG London Branch                              225,000,000
Midland Bank plc                                            225,000,000
                                                   =============================
                      Facility C Total Commitments        1,350,000,000
                                                   =============================


                                     Part IV

                        Facility D Banks and Commitments

Banks                                                       Commitments
                                                              (pounds)

ABN AMRO Bank N.V.                                           41,666,667
Barclays Bank PLC                                            41,666,667
The Chase Manhattan Bank                                     41,666,666
Deutsche Bank AG London                                      41,666,666
Dresdner Bank AG London Branch                               41,666,667
Midland Bank plc                                             41,666,667
                                                   =============================
                      Facility D Total Commitments          250,000,000
                                                   =============================

                                      -106-
<PAGE>

                                   SCHEDULE 2

                         Conditions Precedent Documents

                                     Part I

                  To be delivered before the first Utilisation

(a)  A copy of the  memorandum and articles of  association  and  certificate of
     incorporation of the Borrowers;

(b)  a copy of a  resolution  of the board of directors  (or a duly  constituted
     committee  of  the  board  of  directors  and  of the  board  of  directors
     establishing such committee) of each Borrower:

     (i)  approving  the terms of,  and the  transactions  contemplated  by, the
          Finance Documents and resolving that it execute the Finance Documents;

    (ii)  authorising  a  specified  person or  persons to  execute  and,  where
          applicable,  deliver the Finance  Documents  to which it is a party on
          its behalf; and

   (iii)  authorising a specified person or persons,  on its behalf, to sign and
          endorse  Bills and to sign and/or  despatch  all other  documents  and
          notices  (including  but not limited to  Utilisation  Requests)  to be
          signed and/or despatched by it under or in connection with the Finance
          Documents;

(c)  specimens of the  signatures of each person  authorised by the  resolutions
     referred to in paragraph (b) above;

(d)  a copy of NG  Company's  Transmission  Licence and the Licences (if any) of
     each Borrower;

(e)  a  certificate  of a  director  of  each  of the  Borrowers  on its  behalf
     confirming  that  utilisation  of the  Facilities  in full would not,  when
     utilised, cause any borrowing limit binding on it to be exceeded;

(f)  a  certificate  of  an  authorised  signatory  of  each  of  the  Borrowers
     certifying  that each copy document  specified in Part I of this Schedule 2
     is correct,  complete  and in full force and effect as at a date no earlier
     than the date of this Agreement;

(g)  a legal opinion of Allen & Overy addressed to the Finance Parties; and

(h)  a notice of cancellation of the undrawn  commitment (if any) under the 1996
     Facility  Agreement  such  cancellation  to be  effective no later than the
     first Utilisation Date.

                                      -107-
<PAGE>

                                     Part II

     To be delivered before the first Advance under Facility A or Facility C

(a)  a certified copy of the NEES Acquisition  Agreement and the EUA Acquisition
     Agreement;

(b)  a  certified  copy  of  the  circular  to  the  shareholders  of  NGG to be
     distributed in connection with the NEES Acquisition;

(c)  a  certified  copy of the  resolution  passed  by the  shareholders  of NGG
     approving the NEES Acquisition;

(d)  a  certified  copy  of a  resolution  passed  by the  shareholders  of NEES
     approving the NEES Acquisition;

(e)  a certificate from two directors of NGG dated no earlier than five Business
     Days  before the NEES  Acquisition  Completion  Date (and no later than the
     date of the  first  Utilisation  Request  for a  Facility  A  Advance  or a
     Facility C Advance) to the effect that:

     (i)  the Offeror is to complete such acquisition on a specified date (being
          a date on or prior to the first Facility A or Facility C Advance); and

    (ii)  the NEES  Acquisition is being completed  substantially  in accordance
          with the terms contemplated in the NEES Acquisition Agreement and upon
          completion the Offeror will have acquired 100 per cent. of NEES; and

   (iii)  completion   of  the  NEES   Acquisition   (taking  into  account  any
          governmental or other conditions  affecting the NEES Acquisition after
          completion and the aggregate cash  receivable by NEES  shareholders in
          connection with the NEES  Acquisition) will not, in the opinion of the
          directors of NGG,  materially  and adversely  impact on the ability of
          the enlarged  Group to comply with the financial  covenants set out in
          Clause 20.19 (Group Financial Covenants) or otherwise on the operation
          of the business of the enlarged Group (taken as a whole);

(f)  evidence  in form and  substance  satisfactory  to the  Agent  that the EIB
     Agreement and all other existing credit  agreements (if any) of any Obligor
     have  been  cancelled  and  prepaid  in full or where  necessary  have been
     renegotiated  so as to ensure  that  neither the NEES  Acquisition  nor any
     Utilisation  under  this  Agreement  will  constitute  an event of  default
     (however  defined) under any such credit  agreement  (such  cancellation or
     renegotiation  to be effective  prior to the first  Utilisation  Date under
     Facility A or Facility C); and

(g)  evidence in form and substance  satisfactory to the Agent that NGG and each
     other  relevant  member  of  the  Group  will  as at the  NEES  Acquisition
     Completion  Date, be in compliance with any applicable  provisions of PUHCA
     and will have obtained any necessary  orders,  approvals or consents  under
     PUHCA in relation to this Agreement.

                                      -108-
<PAGE>

                                    Part III

                    To be delivered by an Additional Borrower

(a)  A Borrower Accession  Agreement,  duly executed by the Additional  Borrower
     and NGG;

(b)  a copy of the  memorandum and articles of  association  and  certificate of
     incorporation  or  equivalent  constitutional  documents of the  Additional
     Borrower;

(c)  a copy of a  resolution  of the board of  directors  or  equivalent  of the
     Additional Borrower:

     (i)  approving  the terms of,  and the  transactions  contemplated  by, the
          Borrower  Accession  Agreement  and  resolving  that  it  execute  the
          Borrower Accession Agreement;

    (ii)  authorising  a  specified  person or persons to execute  the  Borrower
          Accession Agreement on its behalf; and

   (iii)  authorising a specified person or persons,  on its behalf, to sign and
          endorse  Bills and to sign and/or  despatch  all other  documents  and
          notices including but not limited to Utilisation Requests to be signed
          and/or despatched by it under or in connection with this Agreement;

(d)  a  certificate  of a  director  of the  Additional  Borrower  on its behalf
     confirming  that  utilisation  of the  Facilities  in full would not,  when
     utilised, cause any borrowing limit binding on it to be exceeded;

(e)  a copy of any other  authorisation or other document,  opinion or assurance
     which the Agent considers to be necessary in connection with the entry into
     and  performance  of, and the  transactions  contemplated  by, the Borrower
     Accession Agreement or for the validity of any Finance Document;

(f)  specimens of the  signatures of each person  authorised  by the  resolution
     referred to in paragraph (c) above;

(g)  the latest audited accounts of the Additional Borrower;

(h)  a  certificate  of an  authorised  signatory  of  the  Additional  Borrower
     certifying that each copy document specified in this Part III of Schedule 2
     is correct,  complete  and in full force and effect as at a date no earlier
     than the date of the Borrower Accession Agreement; and

(i)  a legal  opinion  from the relevant  jurisdiction  addressed to the Finance
     Parties.

                                      -109-
<PAGE>

                                     Part IV

                   To be delivered by an Additional Guarantor

(a)  A Guarantor Accession Agreement,  duly executed as a deed by the Additional
     Guarantor;

(b)  a copy of the  memorandum and articles of  association  and  certificate of
     incorporation  or  equivalent  constitutional  documents of the  Additional
     Guarantor;

(c)  a copy  of a  resolution  of  the  board  of  directors  of the  Additional
     Guarantor:

     (i)  approving  the terms of,  and the  transactions  contemplated  by, the
          Guarantor  Accession  Agreement  and  resolving  that it  execute  the
          Guarantor Accession Agreement as a deed;

    (ii)  authorising  a specified  person or persons to witness the affixing of
          the common seal of the Additional Guarantor to the Guarantor Accession
          Agreement or otherwise execute the Guarantor  Accession Agreement as a
          deed; and

   (iii)  authorising  a  specified  person or persons,  on its behalf,  to sign
          and/or  despatch all  documents to be signed  and/or  despatched by it
          under or in connection with this Agreement;

(d)  a copy of a resolution, signed by all the holders of the issued or allotted
     shares  in the  Additional  Guarantor,  approving  the  terms  of,  and the
     transactions contemplated by, the Guarantor Accession Agreement;

(e)  a copy  of a  resolution  of the  board  of  directors  of  each  corporate
     shareholder in the Additional Guarantor:

     (i)  approving  the terms of the  resolution  referred to in paragraph  (d)
          above; and

    (ii)  authorising  a specified  person or persons to sign the  resolution on
          its behalf;

(f)  a certificate of a director of the Additional  Guarantor (if the Additional
     Guarantor  is  also  to  be a  Borrower)  on  its  behalf  certifying  that
     utilisation of the  Facilities in full would not, when utilised,  cause any
     borrowing  limit  binding  on it to be  exceeded  or,  in the  case  of any
     Additional  Guarantor  which  is an NG  Company  Guarantor,  a  certificate
     certifying that utilisation of Facility D in full would not, when utilised,
     cause any borrowing limit binding on it to be exceeded;

(g)  a copy of any other  authorisation or other document,  opinion or assurance
     which the Agent considers to be necessary in connection with the entry into
     and performance  of, and the  transactions  contemplated  by, the Guarantor
     Accession Agreement or for the validity of any Finance Document;

(h)  a specimen of the signature of each person  authorised  by the  resolutions
     referred to in paragraphs (c) and (e) above;

(i)  a copy of the latest audited accounts of the Additional Guarantor;

                                      -110-
<PAGE>

(j)  a  certificate  of any  authorised  signatory of the  Additional  Guarantor
     certifying  that  each  copy  document  specified  in this  Part IV of this
     Schedule 2 is correct,  complete  and in full force and effect as at a date
     no earlier than the date of the Guarantor Accession Agreement; and

(k)  a legal  opinion  from the relevant  jurisdiction  addressed to the Finance
     Parties.

                                      -111-
<PAGE>
                                   SCHEDULE 3

                       Calculation of the Mandatory Cost

(a)  The  Mandatory  Cost for an Advance for its Term or Interest  Period is the
     rate  determined by the Agent to be equal to the  arithmetic  mean (rounded
     upward,  if  necessary,  to four decimal  places) of the  respective  rates
     notified  by each of the  Reference  Banks to the Agent and  calculated  in
     accordance with the following formulae:

     in relation to an Advance denominated in Sterling:

     BY + S(Y-Z) + F x 0.01 % per annum
     ----------------------
     100-(B+S)

     in relation to any other Advance:

     F x 0.01 % per annum
     --------
     300

     where on the day of application of a formula:

     B    is the percentage of the Reference  Bank's  eligible  liabilities  (in
          excess of any stated  minimum) which the Bank of England  requires the
          Reference Bank to hold on a  non-interest-bearing  deposit  account in
          accordance with its cash ratio requirements;

     Y    is LIBOR at or about  11.00 a.m.  on that day for the Term or Interest
          Period;

     S    is the percentage of the Reference Bank's eligible  liabilities  which
          the Bank of England  requires the Reference Bank to place as a special
          deposit;

     Z    is the  interest  rate per annum  allowed  by the Bank of  England  on
          special deposits; and

     F    is the charge payable by the Reference Bank to the Financial  Services
          Authority  under  paragraph 2.02 or 2.03 (as  appropriate) of the Fees
          Regulations (but where for this purpose, the figure in paragraph 2.02b
          and  2.03b  will  be  deemed  to be  zero)  expressed  in  pounds  per
          (pound)1,000,000 of the fee base of the Bank.

(b)  For the purposes of this Schedule 3:

     (i)  "eligible  liabilities" and "special deposits" have the meanings given
          to them at the  time of  application  of the  formula  by the  Bank of
          England; and

    (ii)  "fee base" has the meaning given to it in the Fees Regulations;

   (iii)  "Fees  Regulations"  means the Banking  Supervision (Fees) Regulations
          1998, and/or any other  regulations  governing the payment of fees for
          banking supervision.

                                      -112-
<PAGE>

(c)  In the  application  of the  formula,  B,  Y, S and Z are  included  in the
     formula as figures and not as percentages, e.g. if B = 0.5% and Y = 15%, BY
     is calculated as 0.5 x 15.

(d)  If a  Reference  Bank does not supply a rate to the Agent,  the  applicable
     Mandatory  Cost will be determined on the basis of the rate(s)  supplied by
     the remaining Reference Banks.

(e)  (i)  The formula is applied on the first day of the Term or Interest Period
          of the relevant Advance.

    (ii)  Each rate  calculated in accordance with the formula is, if necessary,
          rounded upward to four decimal places.

(f)  If the Agent  determines that a change in  circumstances  has rendered,  or
     will render, the formula inappropriate,  the Agent (after consultation with
     the Banks) shall notify NGG of the manner in which the Mandatory  Cost will
     subsequently  be  calculated.  The manner of calculation so notified by the
     Agent  shall,  in the  absence  of  manifest  error,  be binding on all the
     Parties.

                                      -113-
<PAGE>

                                   SCHEDULE 4

          Form of Utilisation Request/Interest Period Selection Notice*

To:      HSBC Investment Bank plc as Agent

From:    [Relevant Borrower]

                                        Date: [              ]

Dear Sirs

            The National Grid Group plc/The National Grid Company plc

     FACILITY A: US$850,000,000 TERM LOAN
     FACILITY B: US$550,000,000 MULTI-CURRENCY REVOLVING CREDIT
     FACILITY C: US$1,350,000,000 364 DAY REVOLVING CREDIT
     FACILITY D: (pound)250,000,000 (NGC) MULTI-CURRENCY REVOLVING CREDIT
                              dated 5th March, 1999
                                (the "Agreement")

1.   We refer to the Agreement.

     2. We wish to utilise  Facility A*  and/or*/Facility  B* and/or Facility C*
and/or the Facility* D by way of Advances* and/or Bills* as follows:


     (a)  Proposed Utilisation Date:               Facility A:   [          ]*
                                                   Facility B:   [          ]*
                                                   Facility C:   [          ]*
                                                   Facility D:   [          ]*

     (b)  Requested Amount (including currency in  Facility A:   [          ]*
          the case of Facility B or D):            Facility B:   [          ]*
                                                   Facility C:   [          ]*
                                                   Facility D:   [          ]*

     (c)  Interest Period/Term*:                   Facility A:   [          ]*
                                                   Facility B:   [          ]*
                                                   Facility C:   [          ]*
                                                   Facility D:   [          ]*

     (d)  Payment Instructions:                    Facility A:   [          ]*
                                                   Facility B:   [          ]*
                                                   Facility C:   [          ]*
                                                   Facility D:   [          ]*

                                      -114-
<PAGE>

     (e)  Initial Interest Period:                 Facility C:   [          ]*
          (for Term-out Advances only)*

     (f)  Final Maturity Date                      Facility C    [          ]*
          (for Term-out Advances only)*

     (g)  Tenor                                    Facility D    [          ]*
          (for Bills only)*

3.   We confirm that each condition  specified in Clause 4.3 (Further conditions
     precedent   generally)  is  satisfied  on  the  date  of  this  Utilisation
     Request.**

Yours faithfully


By:

 .................................

[Relevant Borrower]

Authorised Signatory


- --------
*    Delete as appropriate.

**   Not applicable to selection of Interest Periods.

                                      -115-
<PAGE>
                                   SCHEDULE 5

                                  Form of Bill

Face of Bill

No.            for (pounds)


 ................19[  ]


On................19[  ] pay against this  Bill of Exchange to our order the sum
of (pounds).................... for value received against [                   ]


To:    [                    ]

Accepted by: [                     ]

For and on behalf of                        For and on behalf of
[Accepting Bank]                            [Relevant Borrower]


 ...................................         ....................................
Authorised Signatory                        Authorised Signatory


Reverse of Bill


For and on behalf of:
[Relevant Borrower]


 ...................................
Authorised Signatory

                                      -116-
<PAGE>

                                   SCHEDULE 6

                              Transfer Certificate

To:      HSBC Investment Bank plc as Agent

From:    [The Existing Bank] and [The New Bank]

Date:    [          ]

            The National Grid Group plc/The National Grid Company plc

     FACILITY A: US$850,000,000 TERM LOAN
     FACILITY B: US$550,000,000 MULTI-CURRENCY REVOLVING CREDIT
     FACILITY C: US$1,350,000,000 364 DAY REVOLVING CREDIT
     FACILITY D: (pound)250,000,000 (NGC) MULTI-CURRENCY REVOLVING CREDIT
                             dated 5th March , 1999
                                (the "Agreement")

1.   We refer to Clause 29.3  (Procedure for transfers) of the Agreement.  Terms
     defined  in  the   Agreement   have  the  same  meaning  in  this  Transfer
     Certificate.

2.   We [ ] (the  "Existing  Bank")  and we [ ] (the  "New  Bank")  agree to the
     Existing  Bank and the New Bank  transferring  by way of  novation  all the
     Existing  Bank's  rights and  obligations  referred  to in the  Schedule in
     accordance with Clause 29.3 (Procedure for transfers).

3.   The  specified  date for the  purposes  of Clause  29.3(c)  (Procedure  for
     transfers) is [date of transfer].

4.   The  Facility  Office  and  address  for  notices  of the New  Bank for the
     purposes of Clause 35 (Notices) are set out in the Schedule.

5.   The New Bank warrants that on the date of this Transfer Certificate it is a
     Qualifying Bank.

6.   [The New Bank  confirms  that if it is not a United  States person (as such
     term is defined in Section  7701(a)(30)) of the Code), it has complied with
     the  undertaking  contained in Clause  13.6(b) (U.S.  Taxes) or, if it is a
     United States  person,  it has complied with the  undertaking  contained in
     Clause  13.6(c) (U.S.  Taxes).] / [The New Bank  confirms  that, if it is a
     Qualifying  Bank as defined in sub-  paragraph (b) of that  definition,  it
     will,  as  appropriate,  comply with the  undertaking  contained  in Clause
     13.3(c) (Qualifying Bank).] *

7    This Transfer Certificate is governed by English law.

- ----------

*    Insert as applicable.

                                      -117-
<PAGE>

                                  The Schedule

                      Rights and obligations to be novated

[Details of the rights and obligations of the Existing Bank to be transferred].

[New Bank]

[Facility Office]                 [Address for notices:]
[Telephone No.]
[Facsimile No.]
[Telex No.]
[Contact:]
[Existing Bank]          [New Bank]

By: ..................... By: ..................... By: ........................

Date: ................... Date: ................... Date: ......................

                                      -118-
<PAGE>

                                   SCHEDULE 7

                          Borrower Accession Agreement

To:     HSBC Investment Bank plc as Agent

From:   [Proposed Additional Borrower] and The National Grid Group plc

                                                          Date: [              ]

            The National Grid Group plc/The National Grid Company plc

     FACILITY A: US$850,000,000 TERM LOAN
     FACILITY B: US$550,000,000 MULTI-CURRENCY REVOLVING CREDIT
     FACILITY C: US$1,350,000,000 364 DAY REVOLVING CREDIT
     FACILITY D: (pound)250,000,000 (NGC) MULTI-CURRENCY REVOLVING CREDIT
                             dated 5th March , 1999
                                (the "Agreement")

Dear Sirs

We refer to Clause 29.4 (Additional Borrowers) of the Agreement.

[Name of company] of [registered  office]  (Registered  no.[ ]) hereby agrees to
become an  Additional  Borrower and to be bound by the terms of the Agreement as
an Additional  Borrower in accordance  with Clause 29.4  (Additional  Borrowers)
thereof.

The address for  notices of [name of  company]  for the  purposes of Clause 35.2
(Notices) is:

[                               ]

This Accession Agreement is governed by English law.

Yours faithfully


By: .............................

[Proposed Additional Borrower]

Authorised Signatory


By: .............................

The National Grid Group plc

                                      -119-
<PAGE>

Authorised Signatory

                                      -120-
<PAGE>

                                   SCHEDULE 8

                          Guarantor Accession Agreement

To:     HSBC Investment Bank plc as Agent

From:   [Proposed Additional Guarantor] and The National Grid Group plc

                                                            Date: [            ]

            The National Grid Group plc/The National Grid Company plc

     FACILITY A: US$850,000,000 TERM LOAN
     FACILITY B: US$550,000,000 MULTI-CURRENCY REVOLVING CREDIT
     FACILITY C: US$1,350,000,000 364 DAY REVOLVING CREDIT
     FACILITY D: (pound)250,000,000 (NGC) MULTI-CURRENCY REVOLVING CREDIT
                             dated 5th March , 1999
                                (the "Agreement")

Dear Sirs

We refer to Clause 29.5 (Additional Guarantors) of the Agreement.

[Name of company] of [registered  office]  (Registered  no.[ ]) hereby agrees to
become an  Additional  Guarantor  [of each  Borrower as  contemplated  in Clause
18.1(a)/of NG Company only as contemplated  in Clause  18.1(b)]* and to be bound
by the terms of the  Agreement as an  Additional  Guarantor in  accordance  with
Clause 29.5 (Additional Guarantors) thereof.

The address for  notices of [name of  company]  for the  purposes of Clause 35.2
(Notices) is:

[                                ]

This Accession Agreement is governed by English law and is intended to be and is
delivered on the above date as a deed.

Yours faithfully

[THE COMMON SEAL of                   )
[Proposed Additional Guarantor]       )
was affixed to this Deed              )
in the presence of:-                  )

Director


- ------------------------
Director/Secretary]

                                      -121-
<PAGE>

OR

EXECUTED AS A DEED by                 )
[Proposed Additional Guarantor] and   )
signed by [name of director] and      )
[name of director/secretary] pursuant )
to a resolution of the Board          )

                                            ..............................
                                            Director


                                            ..............................
                                            Director/Secretary

                                      -122-
<PAGE>

                                   SCHEDULE 9

                                   Timetables

In this Schedule 9:

B      =   Bank
D-[x]  =   x Business Days before the relevant Utilisation Date
UR     =   Utilisation Request

<TABLE>
<CAPTION>
                                                   Advance Facility

Clause       Event                                                    Time
- ------       -----                                                    ----
                                          Sterling               Forward Sterling            Optional Currency

                                    Terms of    Terms         Terms of    Terms other    Terms of     Terms
                                    1, 2,       other than    1, 2,       than           1, 2, 3 or 6 other than
                                    3 or 6      1, 2, 3 or 6  3 or 6      1, 2, 3 or 6   months       1, 2, 3 or 6
                                    months      months        months      months                      months

<C>                                 <C>         <C>           <C>         <C>            <C>          <C>
5.1  Agent receives UR              D-3         D-3           D-3         D-3            D-3          D-3
                                    4.30 p      10.30         4.30 pm     10.30 am       4.30 pm      10.30 am
                                    m           am

5.7  Agent receives objection by                D-3                                                   D-3
     B to selection of a Term                   3.30 pm                   D-3                         3.30 pm
     other than 1,2,3 or 6                                                3.30 pm
     months (if applicable)

5.9  Agent notifies Borrower                    D-2                       D-2                         D-2
     and Bs of the new Term (if                 9.00 am                   9.00 am                     9.00 am
     applicable)
</TABLE>

<TABLE>
<CAPTION>
                                     Bill Facility

Clause                                   Event                                       Time
- ------                                   -----                                       ----

<S>      <C>                                                                           <C>
 6.1     Agent receives UR                                                               D-3
                                                                                       3.00 pm

6.4(a)   Agent notifies Bs of details of UR and Bills to be accepted by each B           D-3
                                                                                       5.00 pm

6.5(a)   If applicable, Bs to notify Agent of election to make a Facility D Advance      D-2
                                                                                       9.00 am

6.4(b)   If applicable, Bs to notify Agent that Agent will not be required to discount   D-1
         Bills                                                                         4.00 pm

6.6(b)   Agent notifies Bs and the relevant Borrower of EBDR                              D
         and 6.10                                                                     12.00 noon

 6.7     Banks to lodge Bills in accordance with Agent's instructions if not              D
         discounting their own Bills                                                  11.00 am

         Bs to endorse and accept Bills and lodge with CMO                                D
                                                                                       1.00 pm

 6.8     Agent to elect whether or not to purchase Bills                                  D
                                                                                      10.45am
</TABLE>

                                      -124-
<PAGE>

                                  SCHEDULE 10

                       Form Of Confidentiality Undertaking

To:  [Existing Bank]
     The National Grid Group plc
     The National Grid Company plc

Dear Sirs,

We  refer  to  the  Credit   Agreement   dated   [       ],   1999  relating  to
US$850,000,000  Term  Loan,  US$550,000,000   Multi-Currency  Revolving  Credit,
US$1,350,000,000  364  Revolving  Credit  and  (pound)250,000,000  (NGC)  Multi-
Currency  Revolving Credit Facilities (the "Credit  Agreement")  between,  among
others,  The National  Grid Group plc,  The  National  Grid Company plc and HSBC
Investment Bank plc as Agent.

This is a  confidentiality  undertaking  referred to in Clause 30 (Disclosure of
Information) of the Credit Agreement. Terms defined in the Credit Agreement have
the same meaning in this undertaking.

We are  considering  entering into  contractual  relations  with [insert name of
existing  Bank]  (the  "Bank")  and  understand  that it is a  condition  of our
receiving  information  about  the  Group  and the NEES  Group  and its  related
companies and any Finance Document and/or any information under or in connection
with any Finance Document (the "Information") that we execute this undertaking.

We undertake to treat as confidential any Information and to use the Information
solely for the purposes of determining  whether or not to enter into contractual
relations and to keep any Information  under secured and controlled  conditions.
We will not disclose any of the  Information  to any third party (other than our
directors,  officers,  employees or outside  advisors,  in each case who need to
know the  Information for such purposes and who shall be advised of and agree to
those  confidentiality  obligations)  without the prior  written  consent of The
National Grid Group plc.

The  foregoing  undertakings  do not apply to any  Information  that is publicly
available when provided or that thereafter becomes publicly available other than
through a breach by us (or by any person to whom  disclosure of  Information  is
made as permitted under this undertaking) of the above undertakings,  or that is
required  to be  disclosed  by us  by  judicial  or  administrative  process  in
connection  with any action,  suit,  proceedings  or claim or in order to comply
with a request from any fiscal,  monetary or other  authority  with which we are
accustomed  to comply or otherwise by applicable  law  (provided  that if we are
required to disclose any of the  Information  we will give you such prior notice
of that disclosure as is reasonably  practicable).  Information  shall be deemed
"publicly  available" if it becomes a matter of public knowledge or is contained
in materials  available to the public or is obtained by us from any source other
than the  Bank or from you (or its or your  directors,  officers,  employees  or
outside   advisors),   provided   that  such  source  has  not  entered  into  a
confidentiality agreement with respect to the Information.

Yours faithfully,

                                      -125-
<PAGE>

                                  SCHEDULE 11

                         APPROVED INVESTMENT GUIDELINES


Permitted Investment Instruments

Money market deposits
Certificates of deposit
Sterling commercial paper
Gilt edged securities
Euro commercial paper


Maturities

Less than one year, except in the case of commercial paper,  which is restricted
to periods of up to 3 months.


Credit Quality Criteria

In the case of  commercial  paper,  at least A1/P1 short term credit rating from
Standard & Poor's / Moody's; and

In all other cases,  at least  AA-/Aa3 long term credit  rating from  Standard &
Poor's / Moody's.

                                      -126-
<PAGE>

                                  SIGNATORIES


NGG

THE NATIONAL GRID GROUP plc
as Guarantor and Borrower

By:  STEPHEN BOX


NG Company

THE NATIONAL GRID COMPANY plc
as Borrower

By:  STEPHEN BOX

The Arrangers

ABN AMRO BANK N.V.
as Arranger

By:  RICHARD HILL                      JUDITH SPENSLEY


BARCLAYS CAPITAL
as Arranger

By:  MICHAEL JOYNER


CHASE MANHATTAN PLC
as Arranger

By:  NEVILLE CROW


DEUTSCHE BANK AG LONDON
as Arranger

By:  BRIAN STEVENSON                   MICHAEL STARMER-SMITH


DRESDNER KLEINWORT BENSON
as Arranger

                                      -127-
<PAGE>

By:  CHARLES MORGAN                    MICHAEL LEE


HSBC INVESTMENT BANK plc
as Arranger

By:  EDWARD FLANDERS


Banks

ABN AMRO BANK N.V.
as a Bank

By:  RICHARD HILL                      JUDITH SPENSLEY


BARCLAYS BANK PLC
as a Bank

By:  MICHAEL JOYNER


THE CHASE MANHATTAN BANK
as a Bank

By:  BRUCE BETTENCOURT


DEUTSCHE BANK AG LONDON
as a Bank

By:  BRIAN STEVENSON                   MICHAEL STARMER-SMITH



DEUTSCHE MORGAN GRENFELL (C.I.) LIMITED
as a Bank

By:  MICHAEL STARMER-SMITH


DRESDNER BANK AG LONDON BRANCH
as a Bank

By:  CHARLES MORGAN                    MICHAEL LEE

                                      -128-
<PAGE>

MIDLAND BANK PLC
as a Bank


By:  PAUL TWEEDALE


HSBC INVESTMENT BANK PLC
as Agent


By:  JOHN HAIRE

                                      -129-
<PAGE>

                                    CONTENTS

Clause                                                                      Page

1.   INTERPRETATION............................................................1
2.   THE FACILITIES...........................................................26
3.   PURPOSE..................................................................30
4.   CONDITIONS PRECEDENT.....................................................31
5.   AVAILABILITY OF ADVANCEs.................................................32
6.   AVAILABILITY OF THE BILL FACILITY........................................36
7.   BILLS....................................................................39
8.   REPAYMENT................................................................40
9.   PREPAYMENT AND CANCELLATION..............................................41
10.  INTEREST.................................................................47
11.  OPTIONAL CURRENCIES......................................................50
12.  PAYMENTS.................................................................51
13.  TAXES....................................................................53
14.  MARKET DISRUPTION........................................................57
15.  INCREASED COSTS..........................................................59
16.  MITIGATION...............................................................60
17.  ILLEGALITY...............................................................60
18.  GUARANTEE................................................................61
19.  REPRESENTATIONS AND WARRANTIES...........................................64
20.  COVENANTS................................................................70
21.  DEFAULT..................................................................81
22.  THE AGENT AND THE ARRANGERs..............................................86
23.  FEES.....................................................................91
24.  EXPENSES.................................................................93
25.  STAMP DUTIES.............................................................93
26.  INDEMNITIES..............................................................93
27.  CALCULATIONS AND EVIDENCE OF DEBT........................................94
28.  AMENDMENTS AND WAIVERS...................................................95
29.  CHANGES TO THE PARTIES...................................................96
30.  DISCLOSURE OF INFORMATION...............................................101
31.  SET-OFF.................................................................101
32.  REDISTRIBUTIONS.........................................................101
33.  SEVERABILITY............................................................102
34.  COUNTERPARTS............................................................103
35.  NOTICES.................................................................103
36.  GOVERNING LAW AND JURISDICTION..........................................103

                                       -i-
<PAGE>

Schedules                                                                   Page

1    The Banks Parts I, II, III and IV.......................................105
2    Conditions Precedent Documents Parts I, II, III and IV..................107
3    Calculation of the Mandatory Cost.......................................112
4    Form of Utilisation Request/Interest Period Selection Notice............114
5    Form of Bill............................................................116
6    Transfer Certificate....................................................117
7    Borrower Accession Agreement............................................119
8    Guarantor Accession Agreement...........................................121
9    Timetables..............................................................123
10   Form Of Confidentiality Undertaking.....................................125
11   Approved Investment Guidelines..........................................126

Signatories..................................................................127

                                       -ii-
<PAGE>

                                                                  CONFORMED COPY

                             DATED 5th March , 1999


                           THE NATIONAL GRID GROUP plc
                            as Guarantor and Borrower

                          THE NATIONAL GRID COMPANY plc
                                   as Borrower

                               ABN AMRO BANK N.V.
                                BARCLAYS CAPITAL
                               CHASE MANHATTAN PLC
                             DEUTSCHE BANK AG LONDON
                            DRESDNER KLEINWORT BENSON
                            HSBC INVESTMENT BANK plc

                                  as Arrangers

                            HSBC INVESTMENT BANK plc
                                    as Agent


                                       and

                    CERTAIN BANKS AND FINANCIAL INSTITUTIONS
                                    as Banks

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


      FACILITY A: US$850,000,000 TERM LOAN
      FACILITY B: US$550,000,000 MULTI-CURRENCY REVOLVING CREDIT
      FACILITY C: US$1,350,000,000 364 DAY REVOLVING CREDIT
      FACILITY D: (pound)250,000,000 (NGC) MULTI-CURRENCY REVOLVING CREDIT


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


                                  ALLEN & OVERY
                                     London

        THIS DOCUMENT IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION.

When  considering  what action you should take, you are recommended to seek your
own personal  financial advice from your stockbroker,  bank manager,  solicitor,
accountant or other independent financial adviser authorised under the Financial
Services Act 1986 immediately.

If you have sold or  otherwise  transferred  all of your  National  Grid Shares,
please pass this document, together with the accompanying Form of Proxy, as soon
as possible to the purchaser or transferee or to the stockbroker,  bank or other
agent  through whom the sale or transfer was  effected for  transmission  to the
purchaser or  transferee.  The  distribution  of this document in  jurisdictions
other than the United  Kingdom may be restricted  by law and  therefore  persons
into whose  possession  this document comes should inform  themselves  about and
observe any such restrictions. Any failure to comply with these restrictions may
constitute a violation of the securities laws of any such jurisdiction.


                           The National Grid Group plc
                             Proposed Acquisition of
                           New England Electric System
                                       and
                     Notice of Extraordinary General Meeting

Your  attention is drawn to the letter from the Chairman of National  Grid which
is set out on pages 3 to 10 of this document and which recommends you to vote in
favour of the  resolution to be proposed at the  Extraordinary  General  Meeting
referred to below.

Your attention is specifically drawn to, and all statements relating to National
Grid's,  NEES' and/or EUA's business and their financial  position and prospects
should be viewed in the light of, the year 2000 compliance  issues which are set
out in paragraph 10 of the Chairman's letter and in Part II of this document.

Notice convening an Extraordinary General Meeting of National Grid to be held at
10.00 a.m.  on 22 April,  1999 at the  International  Convention  Centre,  Broad
Street,  Birmingham  B1 2EA  is  set  out at  the  end  of  this  document.  The
accompanying  Form of Proxy should be completed and returned as soon as possible
and, in any event, so as to reach Lloyds TSB Registrars, The Causeway,  Worthing
BN99 6AD by no later than 10.00 a.m. on 20 April, 1999. Completion and return of
a Form of Proxy will not  preclude  a member  from  attending  and voting at the
Extraordinary  General Meeting.  Attending  members should bring their admission
card with them.  A map showing  the  location  of the  International  Convention
Centre, Broad Street, Birmingham B1 2EA is set out on the accompanying admission
card. A shuttle bus will be provided for shareholders arriving at Birmingham New
Street railway  station.  Limited free car parking will be available on a "first
come first  served"  basis in the North Car Park shown on the enclosed  map. N M
Rothschild & Sons Limited and Kleinwort Benson Limited, which are each regulated
in  the  UK  by  The  Securities  and  Futures  Authority  Limited,  are  acting
exclusively for National Grid and no one else in connection with the Acquisition
and will not be responsible to anyone other than National Grid for providing the
protections  afforded to their customers or for giving advice in relation to the
Acquisition.

                                    CONTENTS

PART I:  Letter from the Chairman
         1.  Introduction                                                      3
         2.  Background to and reasons for the Acquisition                     4
         3.  Benefits of the Acquisition                                       6
         4.  Board, management and employees                                   6
         5.  Financing the Acquisition                                         6
         6.  Financial effects of the Acquisition                              6
         7.  Structure of the Acquisition                                      7
         8.  Recent developments                                               8

<PAGE>

         9.  National Grid Group prospects                                     9
         10. Year 2000                                                        10
         11. Extraordinary General Meeting                                    10
         12. Action to be taken                                               10
         13. Further information                                              10
         14. Recommendation                                                   10
PART II:     YEAR 2000
PART III:    INFORMATION RELATING TO NEES
PART IV:     STATEMENTS OF INDEBTEDNESS AND WORKING CAPITAL
PART V:      SUMMARY OF THE PRINCIPAL TERMS AND CONDITIONS OF THE MERGER
               AGREEMENT
PART VI:     ADDITIONAL INFORMATION
DEFINITIONS
Notice of Extraordinary General Meeting
How to fill in the Form of Proxy


                                OUTLINE TIMETABLE

Latest time and date for receipt of Forms of Proxy
  for the Extraordinary General Meeting     10.00 a.m. on 20 April, 1999
Extraordinary General Meeting     10.00 a.m. on 22 April, 1999
Completion  of the  Acquisition  By early 2000,  depending  on timing of various
regulatory approvals/consents The shareholder meeting of NEES is to be held on 3
May, 1999.

                                       -2-
<PAGE>

                                     PART I
                           The National Grid Group plc
     (Incorporated and registered in England and Wales with number 2367004)

Directors:     Registered office:

David Jefferies CBE, FEng* (Chairman)     National Grid House

James Ross* (Deputy Chairman)     Kirby Corner Road

David Jones (Group Chief Executive)     Coventry

Stephen Box (Finance Director)     CV4 8JY

Wob Gerretsen (Business Development Director)

Dr. Roger Urwin (Managing Director, Transmission)

Bob Faircloth* (Director)

John Grant* (Director)

Richard Reynolds* (Director)

Malcolm Williamson* (Director)

*Non-executive

                                                                  31 March, 1999

To National Grid  Shareholders and, for information only, to participants in the
Share Option Schemes. Dear Shareholder,

                       AGREED $3.2 BILLION ACQUISITION OF
                      NEW ENGLAND ELECTRIC SYSTEM ("NEES")

1.   Introduction

On 14 December,  1998,  National Grid and NEES  announced that they had signed a
Merger  Agreement  setting out the terms under which  National Grid will acquire
NEES,  an  electricity  transmission  and  distribution  business  operating  in
Massachusetts, Rhode Island and New Hampshire in the Northeast US.

Under the terms of the Merger  Agreement,  NEES Shareholders will receive a cash
payment  of $53.75 for each NEES Share  held at  Completion  plus an  additional
amount per share if  Completion  does not take  place  within six months of NEES
Shareholders'  approval  of the  Acquisition,  subject  to a maximum  additional
amount  of  $0.60  per  NEES  Share.  The  terms  value  the  equity  of NEES at
approximately $3.2 billion  (approximately  (pound) 2.0 billion) which, together
with  consolidated  net debt,  as at 31 December,  1998, of  approximately  $0.8
billion (approximately (pound) 0.5 billion) gives an enterprise value of NEES of
approximately $4.0 billion (approximately (pound) 2.5 billion).

The Acquisition is subject to a number of conditions,  including  regulatory and
other consents and approvals in the US and the approval of the  shareholders  of
both  National  Grid and NEES.  The  Acquisition  is expected to be completed by
early 2000.  Upon  Completion,  NEES will become a  wholly-owned  subsidiary  of
National  Grid. A summary of the  principal  terms and  conditions of the Merger
Agreement is set out in Part V of this document.

                                       -3-
<PAGE>

The purpose of this document is to provide you with details of the  Acquisition,
to explain why the Board  considers that it is in the best interests of National
Grid and its shareholders as a whole and to recommend that you vote in favour of
the Resolution to be proposed at the  Extraordinary  General  Meeting,  the sole
purpose of which is to consider the Acquisition.

2.   Background to and reasons for the Acquisition

National Grid's strategy is to build  shareholder  value by developing  earnings
from  outside the UK  transmission  business  through  exploitation  of its core
skills in the development and management of infrastructure assets and systems.

The  Acquisition is a major step in achieving  National  Grid's strategy and the
Directors believe that NEES:

     represents a significant  investment in an efficient,  focused transmission
     and distribution  business with a strong  operational  track record,  which
     will benefit from National Grid's core skills;

     provides an attractive  point of entry into the US for National Grid, given
     that New  England has a  favourable  economic  climate and a more  advanced
     state of regulatory evolution compared with many other regions in the US;

     brings   National  Grid  a   high-quality   management   team  with  proven
     distribution   expertise  and  a  shared  view  of  the  industry's  future
     development in the Northeast US; and

     provides an  excellent  regional  platform for growth in  transmission  and
     distribution.

The US market

In the US, the electricity  industry is being restructured with the introduction
of competitive energy markets and the development of new regulatory  frameworks.
Whilst the pace of this  restructuring  varies from  region to region,  National
Grid considers that the US electricity  industry  offers  attractive  investment
opportunities given:

     changing   regulatory   frameworks  are  resulting  in  the  separation  of
     generation from transmission and distribution  assets,  increasing focus on
     efficient  delivery of services,  the  introduction  of customer choice and
     progress towards performance-based regulation; and

     the  high  degree  of  fragmentation  within  the  industry,  which  offers
     opportunities for strategic growth through accessible investments.

NEES' regulatory environment

NEES operates in the Northeast US where  changes to the  regulatory  environment
are  well   advanced.   The  two  principal   states  in  which  NEES  operates,
Massachusetts  and  Rhode  Island,   have  enacted   legislation  which  permits
performance-based   regulation.  The  Directors  believe  that  changes  to  the
regulatory  environment will continue,  allowing both customers and shareholders
to benefit from increasing efficiency.

NEES' existing regulatory  settlements,  negotiated over the period 1996 to 1998
with the federal and individual state  regulators,  provided rate reductions for
customers while:

     allowing  recovery of the stranded  costs  associated  with its  generating
     business  not  recovered  through  the  sale of  substantially  all of that
     business (as more fully discussed in Note C to NEES' 1998 Annual Report set
     out in Part III of this document); and

     offering  stable  rate  settlements  for a  transitional  period as well as
     incentives to improve  performance for customers and increased  returns for
     shareholders.

                                       -4-
<PAGE>

NEES' management

NEES has a high-quality management team which:

     has delivered strong  operational  performance  within its transmission and
     distribution businesses. NEES is one of the most efficient transmission and
     distribution service providers among the Northeast US utilities;

     has been proactive in changing the regulatory landscape.  This has included
     the negotiation of settlements with individual state regulatory authorities
     which  involved  the  disposal  of  substantially  all of NEES'  generating
     business  (the  sale of which was  completed  in  September  1998 for $1.59
     billion), and the recovery of related stranded costs; and

     is committed to developing the business within the region around NEES' core
     skills in transmission and distribution.

NEES' business

NEES is one of the leading electric utilities in the Northeast US. Following the
sale of substantially all of its generating  business in September 1998, NEES is
primarily an electricity  transmission and distribution  business serving retail
customers in the states of Massachusetts, Rhode Island and New Hampshire.

NEES' system consists of approximately  2,700 route miles of transmission  lines
and  approximately  28,000  route miles of  distribution  networks.  NEES serves
approximately 1.3 million customers through its retail electric companies.  NEES
has also been developing a number of small, unregulated businesses.

NEES has  minority  (20 per  cent.  or less)  non-operating  interests  in three
nuclear  power plants in New  Hampshire,  Connecticut  and Vermont.  It also has
minority  interests  (30 per cent.  or less) in three  other  nuclear  plants in
Massachusetts,  Connecticut and Maine which have been  permanently  closed.  The
regulatory settlements allow recovery of all plant investment and shutdown costs
(including  decommissioning  and spent fuel). NEES is endeavouring to dispose of
these interests.

Further information relating to NEES is set out in Part III of this document.

Complementary skills

National Grid has considerable experience of:

     operating as a facilitator of competition in a regulatory environment which
     promotes and rewards efficiency; and

     improving  system  performance  through  investing in and managing  complex
     transmission  networks and the sophisticated  software systems that control
     the networks in real time.

The Directors  believe that National Grid's own management skills and experience
complement NEES' expertise of operating efficient distribution  businesses in an
evolving  regulatory  environment.  This  combination  will provide the enlarged
group  with  an  important  competitive  advantage  in the US  transmission  and
distribution business and assist it in pursuing opportunities elsewhere.

National  Grid and NEES are  committed  to  providing a reliable  and  efficient
service and enhancing overall performance standards for the benefit of customers
and shareholders.

                                       -5-
<PAGE>

3.   Benefits of the Acquisition

The Acquisition represents a major step in National Grid's strategy.

The Directors  expect the  Acquisition to enhance  National  Grid's earnings per
share,  before the  amortisation of goodwill,  and  significantly to enhance its
total cash flow per share immediately following acquisition.

In the medium  term,  the  Directors  expect  NEES'  performance  to be enhanced
through  general  efficiency  improvements.   In  addition,  further  investment
opportunities  are expected to arise from  rationalisation  and consolidation of
the electricity  industry in the Northeast US. These  opportunities are expected
to provide synergy and cost cutting benefits for the enlarged NEES business.  An
example of such an opportunity is provided by NEES' proposed  acquisition of EUA
described more fully in "Recent developments" (paragraph 8 below).

National Grid, as enlarged by the  Acquisition,  should have strong  operational
cash  flows  allowing  it to meet  its  capital  expenditure,  interest  and tax
payments and to service a growing dividend.

4.   Board, management and employees

Board and management

An Interim Joint Integration Committee of NEES, chaired by David Jones, has been
established to ensure a smooth transition in the period between announcement and
Completion.

Upon Completion,  it is intended that the NEES Board will be reconstituted as an
executive-only Board chaired by David Jones.

Alfred D. Houston,  Chairman of NEES, will step down at Completion,  but will be
retained  as a  consultant  for  two  years.  A  NEES  Advisory  Board  will  be
established  for two years  following  Completion  to maintain and develop NEES'
customer and community relationships.

Upon  Completion,  Rick Sergel,  President and Chief Executive  Officer of NEES,
will join the National Grid Board as an executive  Director together with one of
NEES'  non-executive  Directors.  Details  of  Rick  Sergel's  proposed  service
contract are set out in paragraph 3.5 of Part VI of this document.

Employees

Employees of National  Grid and of NEES will benefit  from  potential  transfers
within the enlarged  group.  National  Grid has  confirmed  that all  employment
agreements will be honoured and that the  headquarters  for the enlarged group's
US operations will remain in Massachusetts.

5.   Financing the Acquisition

The Board intends to finance the Acquisition wholly from borrowings.  Details of
the new  banking  facilities  are set  out in  paragraph  5.1 of Part VI of this
document.

6.   Financial effects of the Acquisition

The Acquisition will be accounted for under FRS10,  with the goodwill arising on
acquisition  being  capitalised  on National  Grid's balance sheet and amortised
over a period of 20 years.

The Directors  expect the  Acquisition to enhance  National  Grid's earnings per
share,  before the  amortisation of goodwill,  and  significantly to enhance its
total cash flow per share immediately following acquisition.

                                       -6-
<PAGE>

Completion  of the  Acquisition  will result in a cash outflow of  approximately
$3.2 billion  (approximately  (pound) 2.0 billion).  At their respective  latest
published  balance  sheet dates of 30  September,  1998 and 31  December,  1998,
National Grid Group had  consolidated net debt of (pound) 1,507 million and NEES
Group had  consolidated  debt,  net of cash and marketable  securities,  of $846
million  (approximately  (pound) 519 million).  The  consolidated  net assets of
National Grid Group and NEES Group at their respective  latest published balance
sheet dates were (pound) 1,014 million and $1,628 million (approximately (pound)
999 million).

You  should  read the whole of this  document  and  should not just rely on this
summary.

7.   Structure of the Acquisition

Structure

The  Acquisition  will be  effected in  accordance  with the terms of the Merger
Agreement entered into between National Grid, NGG Holdings and NEES.

A  brief  description  of the  principal  terms  and  conditions  of the  Merger
Agreement is set out in Part V of this document.

Acquisition terms

Under the terms of the Merger  Agreement,  NEES Shareholders will receive a cash
payment of $53.75 for each NEES Share held at the time of Completion. The Merger
Agreement  also provides that the cash payment will be subject to an increase if
Completion  does not take place on or before the date following six months after
approval of the Acquisition by NEES Shareholders which is to be sought on 3 May,
1999. The amount of any such cash adjustment  shall be determined  using a daily
accrual rate of $0.003288 per NEES Share until Completion,  subject to a maximum
increase of $0.60 per NEES Share.

Up to Completion,  NEES may declare and pay regular quarterly dividends,  not in
excess of the dividends  paid in the same period in the prior fiscal year, and a
stub dividend pro-rated for the quarter in which Completion takes place.

The terms of the Acquisition:

     value  the  equity of NEES at  approximately  $3.2  billion  (approximately
     (pound)2.0  billion) which,  together with  consolidated net debt, as at 31
     December,  1998, of approximately  $0.8 billion  (approximately (pound) 0.5
     billion) gives an enterprise  value of NEES of  approximately  $4.0 billion
     (approximately (pound) 2.5 billion); and

     represent a 25.0 per cent.  premium if the minimum  price per NEES Share is
     paid and a 26.4 per cent.  premium if the  maximum  price per NEES Share is
     paid,  in each case as  compared  to the  closing  price of $43.00 per NEES
     Share on 11 December,  1998 (the last trading day prior to the execution of
     the Merger Agreement).

Shareholder approvals

(a)  National Grid

     The  Acquisition  is subject to approval  by a majority  of  National  Grid
     Shareholders  voting  at the  Extraordinary  General  Meeting.  The  Merger
     Agreement  is  conditional  upon  such  approval  being  obtained  and  the
     satisfaction or waiver of the other conditions in the Merger Agreement.

     This document includes the notice of the Extraordinary  General Meeting and
     explains the necessary actions to be taken by National Grid Shareholders.

                                       -7-
<PAGE>

(b)  NEES

     The Acquisition is conditional upon, amongst other matters, the approval of
     the  Acquisition  by the  affirmative  vote of the holders of a majority of
     NEES Shares and the  satisfaction or waiver of the other  conditions in the
     Merger Agreement.

     A proxy  statement  dated 26 March,  1999 to NEES  Shareholders  contains a
     notice convening a meeting of NEES Shareholders.  At the meeting,  which is
     to be held on 3 May, 1999, NEES  Shareholders  will be asked to approve the
     Acquisition.

Regulatory consents and timing

The Acquisition is subject to a number of conditions,  including  regulatory and
other  consents and  approvals  in the US. The  principal  regulatory  approvals
required  include  approval  by or  filings  with the SEC,  the  Federal  Energy
Regulatory Commission, the Nuclear Regulatory Commission and approvals, consents
or support in the states in which NEES operates or has non-operating  interests.
The Acquisition also requires clearance under US anti-trust laws.

Formal  filings  have been  made with the SEC,  the  Federal  Energy  Regulatory
Commission and the Nuclear Regulatory  Commission and National Grid and NEES are
confident the regulatory  approval process for the Acquisition is on schedule to
enable Completion to occur by early 2000.

It is possible,  however,  that some of the  government  authorities  with which
filings have been or are to be made may impose conditions for granting approval.
National  Grid and NEES cannot  predict  whether  they will obtain the  required
regulatory approvals within the time-frame  contemplated by the Merger Agreement
or whether any approvals  will include  conditions  that would be detrimental to
either National Grid or NEES.

8.   Recent developments

Investment in Energis

On 3 February,  1999, National Grid placed 60,000,000 Energis ordinary shares at
(pound) 16.50   per  share and   simultaneously   completed   the  offering  for
subscription of 14,700,000 6 per cent. Equity Plus Income Convertible securities
("EPICs") due 2003 in the aggregate principal amount of $401,163,000, redeemable
for Energis ordinary shares.

The proceeds of the combined  offering,  amounting to  approximately (pound) 1.2
billion,  are to be used by National Grid for general  corporate  purposes.  The
exceptional  profit before  taxation on the partial  disposal of National Grid's
shareholding in Energis amounts to approximately (pound) 892 million.

Following  the  combined  offering  and  conversion  of  its  remaining  Energis
convertible preference shares, National Grid has an economic interest in Energis
of 48.3 per cent.

National  Grid has  agreed to a lock-up  period of six months  from 22  January,
1999,  during  which time it shall not dispose of any further  Energis  ordinary
shares or convertible preference shares without the prior consent of HSBC.

NEES' proposed acquisition of EUA

On 1 February,  1999, NEES announced that it had entered into a merger agreement
to  acquire  EUA.  The  terms of the  acquisition  value  the  equity  of EUA at
approximately  $634 million  (approximately (pound) 389  million).  Allowing for
EUA's net debt at 31 December,  1998,  EUA's enterprise value at the acquisition
price is approximately $1.0 billion (approximately (pound) 0.6 billion).

EUA's principal  activities are the transmission and distribution of electricity
in Massachusetts and Rhode Island,  adjacent to NEES' service  territories.  EUA
serves approximately 300,000 customers through its retail electric

                                       -8-
<PAGE>

companies which operate a system  consisting of approximately  6,900 route miles
of  transmission  lines and  distribution  networks.  As set out in its  audited
results for the year ended 31 December,  1998,  EUA had revenues of $539 million
(approximately  (pound) 331 million),  net income of $37 million  (approximately
(pound) 23 million)  and net  assets of $409 million  (approximately  pound) 251
million). Upon completion of the EUA Acquisition,  NEES will serve approximately
1.6 million electricity customers.

National Grid consented to, and is fully supportive of, the EUA Acquisition. The
Directors  believe  that the EUA  Acquisition  is in line with  National  Grid's
strategy in the US which envisages the pursuit of investment  opportunities with
NEES in the Northeast US electricity industry.  The addition of EUA will, before
restructuring  costs, further enhance National Grid's earnings per share, before
the amortisation of goodwill, and total cash flow per share.

The EUA  Acquisition is subject to regulatory  approvals by the SEC, the Federal
Energy Regulatory  Commission,  the Nuclear Regulatory  Commission and the state
utility  commissions in  Massachusetts  and Rhode Island.  The EUA  Acquisition,
which is expected to be completed by early 2000 (in line with  Completion)  also
requires approval by an affirmative vote of two-thirds of EUA shareholders.  The
EUA  Acquisition is not contingent  upon  Completion and the approval of neither
NEES   Shareholders   nor  National  Grid   Shareholders  is  required  for  the
transaction.

A copy of NEES'  announcement  of the EUA Acquisition is set out in full in Part
III of this document.

Bond issue

On 26 January,  1999,  NGC  announced an issue of (pound) 450  million 5.875 per
cent.  Bonds due 2024.  The net  proceeds  of the issue will be used for general
corporate purposes.

Brazil

In January  1999,  National  Grid  announced  that a consortium in which it is a
partner had been awarded,  for a consideration of (pound) 25 million,  a licence
to   provide   telecommunications   services,   including   inter-regional   and
international  services,  in Brazil.  The  consortium,  of which 50 per cent. is
owned by National Grid and 25 per cent. each by France Telecom and Sprint,  will
construct a new telecommunications  network which is intended to cover the major
population centres of the country within three years.

National Air Traffic Services

National Grid has  confirmed to HM  Government  its support in principle for the
possible  Public Private  Partnership  (PPP) for National Air Traffic  Services.
National Grid will await HM Government's proposals before determining whether or
not to participate in any PPP.

Board appointment

National Grid announced on 1 March, 1999 that James Ross has been appointed as a
non-executive Director and Deputy Chairman with immediate effect and will become
Chairman  following  the  retirement  of David  Jefferies at the Annual  General
Meeting of National Grid to be held in July 1999.

9.   National Grid Group prospects

National Grid intends to enhance  shareholder value through  investments both in
the  UK  and  internationally.  The  Acquisition  and  the  recent  developments
described in paragraph 8 above are consistent  with this intention and represent
important steps towards its  achievement.  On this basis,  and in the absence of
adverse  changes in taxation or  regulatory  regimes,  the  Directors  expect to
maintain their stated policy of delivering  real growth in dividend per share of
4 to 5 per cent. per annum until March 2001.

The  Directors  believe that the  prospects of National Grid will be enhanced by
the Acquisition.

                                       -9-
<PAGE>

10.  Year 2000

It is widely expected that many computer  programs and  applications  written in
the past will be unable properly to recognise calendar dates associated with the
year 2000. As a result,  computers  throughout the world may either shut down or
fail to operate correctly on specific dates.

National Grid, NEES and EUA depend on computer  technology for the operation and
maintenance of their own networks,  the integrity of operational interfaces with
other  electricity  companies and the provision of services to their  customers.
All three companies are aware of potential risks arising from the year 2000 date
change and have actions in hand to modify or replace  business-critical  systems
as necessary  designed to ensure that, as far as possible,  there is no material
disruption  to their  operations.  Details  of the  programme  being  pursued by
National  Grid are set out in Part II of this  document.  In addition,  extracts
from NEES' 1998 Annual  Report dated 23 February,  1999,  describing  NEES' year
2000  readiness,  and from  EUA's  1998  Annual  Report  dated 11  March,  1999,
describing  EUA's  year  2000  readiness,  are  also  set out in Part II of this
document.

The degree of  uncertainty  facing all  companies,  in addition to the potential
disruption  which may be caused by third  parties,  means  that  there can be no
assurance that the programmes  being  implemented by National Grid,  NEES or EUA
will ensure year 2000  readiness or prevent  disruption  to their  businesses or
that the date change from 1999 to 2000 will not have a material  adverse  effect
on National Grid's and/or NEES' and/or EUA's operations,  financial  position or
prospects.  However, the Directors believe that the programmes being implemented
by  National  Grid,   NEES  and  EUA  to  address   critical   operational   and
system-related issues should mitigate the impact of year 2000 risks.

11.  Extraordinary General Meeting

At the end of this document, shareholders will find a notice of an Extraordinary
General Meeting to be held at the International Convention Centre, Broad Street,
Birmingham B1 2EA at 10.00 a.m. on 22 April,  1999 at which a resolution will be
proposed to approve the Acquisition.

12.  Action to be taken

Shareholders  will find  enclosed  with this document a Form of Proxy for use at
the  Extraordinary  General Meeting.  Whether or not you intend to be present at
the meeting,  you are requested to complete,  sign and return your Form of Proxy
to Lloyds TSB  Registrars,  The Causeway,  Worthing BN99 6AD as soon as possible
and,  in any event,  so as to arrive by no later  than  10.00 a.m.  on 20 April,
1999.  The  completion  and return of a Form of Proxy will not preclude you from
attending  the meeting and voting in person should you wish to do so, but if you
do wish to attend,  you should bring your admission card with you.  Instructions
on how to complete the Form of Proxy are set out at the end of this document.

If you require any further  information,  please  telephone  the  National  Grid
Shareholder  helpline on 01203  423940  between  9.00 a.m.  and 5.00 p.m. on any
business day or write to the  Shareholder  Enquiry Unit at National  Grid House,
Kirby Corner Road, Coventry CV4 8JY before the Extraordinary General Meeting.

13.  Further information

Your attention is drawn to the further  information set out in Parts II to VI of
this document.

14.  Recommendation

The Board of National  Grid,  which has been advised by Rothschild  and Dresdner
Kleinwort  Benson,  considers  the  Acquisition  to be in the best  interests of
National  Grid  and  its  shareholders  as a  whole.  In  giving  their  advice,
Rothschild  and Dresdner  Kleinwort  Benson have relied upon the  National  Grid
Board's views of the commercial merits of the Acquisition.

                                      -10-
<PAGE>

The  Directors  unanimously  recommend  shareholders  to vote in  favour  of the
resolution to be proposed at the Extraordinary  General Meeting,  as they intend
to do in  respect  of their  respective  beneficial  holdings,  which  amount to
578,957 National Grid Shares in aggregate.

The Board of NEES has  unanimously  approved the Acquisition and is recommending
that NEES  Shareholders  vote in favour of the resolutions to be proposed at the
shareholder meeting of NEES.

Yours sincerely,

David G Jefferies CBE, FEng
Chairman

                                      -11-
<PAGE>

                                PART II YEAR 2000

Your attention is drawn to, and this Part II should be read in conjunction with,
the  discussion  of year 2000 issues set out in paragraph  10 of the  Chairman's
letter.

1.   National Grid

It is widely expected that many computer  programs and  applications  written in
the past will be unable properly to recognise calendar dates associated with the
year 2000. As a result,  computers  throughout the world may either shut down or
fail to operate correctly on specific dates.

National Grid has in place a group-wide project to review its  business-critical
information   systems  and  to  plan  and  implement  changes  as  necessary  to
accommodate the year 2000 date change. The project commenced in 1996 when a year
2000  project   coordination  team  was  established  with   responsibility  for
developing  an  overall  plan to  achieve  year 2000  readiness,  including  the
monitoring  of  year  2000-related   activities  within  operating  units.  Each
operating unit has its own year 2000 compliance  officer,  whose  activities are
directed by the project coordination team. Detailed progress reports are made by
the project  coordination team to the Executive  Committee of National Grid on a
regular basis and the Board is kept fully  informed of progress.  Responsibility
for the programme rests with Wob Gerretsen, National Grid's Business Development
Director.

To enable work to be prioritised according to the potential impact of failure on
the continuity of its  operations,  National Grid has defined five categories of
information system criticality, as follows:

Category 5     Severe impact on business if information system failed to operate
               for more than three days
- ----------

Category 4     Severe impact on business if information system failed to operate
               for more than one month

- ----------

Category 3     Information  system may be out of commission  for several  months
               but a tried and tested contingency  solution meets  functionality
               required

- ----------

Category 2     No  date-related  issues to be  addressed  (although  information
               system may be critical to National Grid operations)

- ----------

Category 1     No compliance required

- ----------

Under the guidance of the project coordination team, each operating unit has (1)
identified and categorised their business, engineering and facility systems, (2)
carried out off-line testing of those systems deemed to be at risk of failure as
a result of the year 2000 date change and (3) amended or replaced  such  systems
and carried out re-testing to confirm the  effectiveness  of the remedial action
taken.

In addition,  National Grid has implemented a  communications  programme on year
2000 issues with generators, suppliers and other electricity industry parties to
share  information on their  respective  year 2000 progress.  This programme has
addressed contingency  arrangements for the year 2000 date change. National Grid
also  participates  in the Y2K Utilities  Group,  which acts as a forum for year
2000  issues on behalf of the  electricity,  gas,  water and  telecommunications
industries.

On-going work for National Grid's year 2000 programme involves the completion of
outstanding  remedial action, the consolidation of work already undertaken,  the
establishment  of compliance  programmes for less critical  systems to avoid the
need for  excessive  use of temporary  contingency  solutions,  development  and
implementation of business continuity and contingency  arrangements and the more
detailed investigation of interfaces with third parties.

                                      -12-
<PAGE>

National   Grid   considers   that   approximately   79   per   cent.   of   all
computer-dependent systems,  applications and equipment,  including all of those
which are  critical  to the secure  operation  and  control of the  transmission
system, are now year 2000-ready.

National Grid estimates that the total cost of modifying or replacing systems to
achieve year 2000 readiness will be approximately (pound) 16.0 million, of which
approximately (pound) 11.0  million  had been  spent as at 25  March,  1999 (the
latest practicable date prior to publication of this document).

Monitoring  of year  2000  preparations  in the  electricity  industry  is being
carried out by  independent  assessors  on behalf of the  industry's  regulator,
OFFER.  In  December  1998,  National  Grid  provided a detailed  response  to a
self-assessment   questionnaire   issued  by  OFFER  to  companies   within  the
electricity  sector.  OFFER's report published on 17 March, 1999 stated that the
electricity  industry's  preparations  for the year 2000 date  change  were well
advanced, with most compliance activities expected to be completed by the end of
June 1999.  The few systems  programmed  for  completion  by September  1999 had
adequate  resources to meet these deadlines and, in OFFER's view, would not pose
a risk to electricity  supplies at the year 2000 date change.  OFFER also stated
that it intended to continue to monitor and report on progress to full year 2000
compliance.

2.   NEES

The  following  is an extract  from NEES' 1998 Annual  Report dated 23 February,
1999, describing NEES' year 2000 readiness:

"Over the next year, most companies will face a potentially  serious information
systems  (computer)  problem because many software  applications and operational
programs  written  in  the  past  may  not  properly  recognize  calendar  dates
associated  with the year 2000 (Y2K).  This could cause computers to either shut
down or lead to incorrect calculations.

During 1996,  the NEES companies  began the process of  identifying  the changes
required to their  computer  software and  hardware to mitigate Y2K issues.  The
NEES companies  established a Y2K Project team to manage these issues. This team
reports project progress to a Y2K Executive  Oversight Committee each month. The
team also  makes  regular  reports  to NEES'  Board of  Directors  and its Audit
Committee.  The NEES companies have separated  their Y2K Project into four parts
as shown, along with the estimated completion dates for each part.

<TABLE>
<CAPTION>
Category                              Specific Example        Substantial    Contingency Testing,
                                                            Completion of      Documentation, and
                                                         Critical Systems        Clean Management
- --------
<S>                     <C>                                 <C>                   <C> 
Mainframe/Midrange         Accounting/Customer service          Completed         Throughout 1999
systems                             integrated systems
- --------
Desktop systems          Personal computers/Department      June 30, 1999         Throughout 1999
                                     software/Networks
- --------
Operational/Embedded                       Dispatching      June 30, 1999         Throughout 1999
systems                       systems/Transmission and
                        Distribution systems/Telephone
                                               systems
- --------
External issues                        Electronic Data      June 30, 1999         Throughout 1999
                                    Interchange/Vendor
                                        communications
- --------
</TABLE>

                                      -13-
<PAGE>

The NEES companies are using a three-phase  approach in  coordinating  their Y2K
Project for  system-related  issues:  (I) Assessment  and Inventory,  (II) Pilot
Testing,  and (III)  Renovation,  Conversion,  or Replacement of Application and
Operating  Software  Packages  and  Testing.  Phase  I,  which  was  an  initial
assessment of all systems and devices for  potential Y2K defects,  was completed
in mid-1997.  Phase II, which consisted of renovation pilots for a cross-section
of systems in order to facilitate the  establishment  of templates for Phase III
work,  was  completed  in late 1997.  Phase  III,  which is  currently  ongoing,
requires  the   renovation,   conversion,   or   replacement  of  the  remaining
applications and operating software packages.

The NEES companies have also implemented a formalized communication process with
third  parties to give and  receive  information  related to their  progress  in
remediating  their  own Y2K  issues,  and to  communicate  the  NEES  companies'
progress  in  addressing  the Y2K  issue.  These  third  parties  include  major
customers,  suppliers,  and significant businesses with which the NEES companies
have data links (such as banks).  The NEES companies  cannot predict the outcome
of other companies' remediation efforts.

The NEES  companies  believe  total costs  associated  with making the necessary
modifications   to  all   centralized   and   noncentralized   systems  will  be
approximately  $28 million.  In  addition,  the NEES  companies  are spending $4
million related to the replacement of the human resources and payroll system, in
part due to the Y2K issue. To date, total Y2K- related costs of $25 million have
been incurred, of which $2 million has been capitalized.

The NEES  companies are in the process of developing  Y2K  contingency  plans to
allow for critical information and operating systems to function from January 1,
2000  forward.  If required,  these plans are intended to address both  internal
risks as well as potential  external  risks related to suppliers and  customers.
Part of the contingency planning for accounting and desktop systems will include
taking  extensive  data  back-ups  prior to year-end  closing.  For  operational
systems,  the NEES companies have in place an overall disaster recovery program,
which already includes periodic disaster simulation training (for outages due to
severe weather,  for instance).  As part of Y2K contingency  planning,  the NEES
companies  will  review  their  disaster  recovery  plans,  modifying  them  for
Y2K-specific issues. The NEES companies expect that these contingency plans will
be in place by the third quarter of 1999.

Interregional  and regional  contingency plans are being formulated that address
emergency scenarios due to the interconnection of utility systems throughout the
United States.  At a regional level,  the NEES companies are  participating  and
cooperating with the New England Power Pool (NEPOOL) and the Independent  System
Operator  of the NEPOOL area (ISO New  England).  Overall  regional  activities,
including  those of  NEPOOL  and ISO New  England,  will be  coordinated  by the
Northeast Power Coordinating Council, whose activities will be incorporated into
the interregional coordinating effort by the North American Electric Reliability
Council. The target for the completion of this planning process is mid-1999. The
NEES companies have noted that the Y2K  coordination  efforts by ISO New England
began in May 1998,  resulting in a demanding  and  difficult  schedule to attain
regional and interregional target dates.

The NEES companies  believe the worst case scenario with a reasonable  chance of
occurring is temporary  disruptions  of electric  service.  This scenario  could
result from a failure to  adequately  remediate  Y2K  problems  at NEES  company
facilities  or could be caused by the  inability  of  entities,  such as ISO-New
England,  to maintain the short-term  reliability of various  generators  and/or
transmission  lines on a regional or  interregional  basis.  The NEES  companies
believe that the  contingency  plans being  developed  both  internally and on a
regional level, as described above, should  substantially  mitigate the risks of
this potential  scenario.  In the event that a short-term  disruption in service
occurs,  NEES  does not  expect  that it would  have a  material  impact  on its
financial position and results of operations.

While  the  NEES   companies   believe  that  their  overall  Y2K  program  will
satisfactorily  address all  critical  operational  and  system-related  issues,
significant risks remain.  These risks include,  but are not limited to, the Y2K
readiness of third parties,  including other utilities and power suppliers, cost
and timeline  estimates of remaining  Y2K  mitigation  efforts,  and the overall
accuracy of assumptions  made related to future events in the development of the
Y2K mitigation effort."

                                      -14-
<PAGE>

3.   EUA

The following is an extract from EUA's 1998 Annual  Report dated 11 March,  1999
describing EUA's year 2000 readiness:

"EUA's Year 2000 Program (the Program) is proceeding on schedule. The Program is
addressing  the potential  impact on computer  systems and embedded  systems and
components  resulting  from a  common  software  program  code  convention  that
utilizes two digits instead of four to represent a year. If not  addressed,  the
year 2000 may be  systemically  recognized  as the year 1900,  which could cause
system  or  equipment  failures  or  malfunctions,   and  ultimately  result  in
disruptions to Company operations.

EUA's State of Readiness: To address potential Year 2000 issues, EUA has divided
the focus of its Year 2000  Program  into three  major  categories  of  business
activity:  the  generation  and  delivery  of  electricity  to  customers,   the
acquisition  of goods and  services  (including  purchased  power),  and ongoing
general and administrative  activities relating to the corporate  infrastructure
and  support  functions,   which  includes  among  other  things,  billings  and
collections.

EUA has adopted a four phase approach in addressing  information technology (IT)
issues.  As of January 31, 1999,  each phase was at the following  percentage of
completion:  analysis  -  100%;  remediation  - 79%;  unit  testing  - 78%;  and
integrated  testing - 11%. EUA is on schedule to achieve Year 2000 readiness for
100% of  mission  critical  projects  by June 30,  1999.  For  non-IT  projects,
approximately  90% are either Year 2000 ready or not  affected by the Year 2000.
The remaining  items are in the process of being  remediated  and tested and are
scheduled to be Year 2000 ready by June 30, 1999.

EUA has an ongoing  process to identify  and assess the Year 2000  readiness  of
third  parties  with  which it has a  material  relationship.  Where  necessary,
contingency plans will be developed. This process is on schedule to be completed
by June 30, 1999.

Costs to address  EUA's Year 2000 Issues:  Through  December  31, 1998,  EUA has
incurred  costs of  approximately  $3.0  million  to address  Year 2000  issues,
including  approximately $1.5 million of non-incremental  labor, $1.2 million of
capital  expenditures  and $300,000 of consulting and other costs. EUA estimates
it will incur  additional  costs  approximating  $7.0 million  during the period
January 1, 1999 through March 31, 2000, to complete its  resolution of Year 2000
issues including  approximately $5.5 million of non-incremental  labor, $500,000
of capital  expenditures and $1.0 million of consulting and other costs. Because
70% of the total estimated  costs  associated with the Year 2000 issue relate to
non-incremental  internal labor,  management  continues to believe that the Year
2000 will not present a material  incremental impact to future operating results
or financial condition.

Risks of EUA's  Year 2000  Issues:  EUA's  first  priority  continues  to be the
minimization of any potential disruptions to electric service as a result of the
Year  2000.  The  provision  of  electric  service  depends in large part on the
viability of the New England power grid which is managed by  ISO/NEPOOL.  EUA is
actively  participating  on  ISO/NEPOOL's  Year  2000  operating  and  oversight
committees.  EUA's assessment of its own transmission and distribution equipment
and  facilities  indicated  that the risk of failure of this  equipment does not
appear  to be  significant.  However,  due to the  interconnectivity  of the New
England power grid,  and the reliance on many other  entities also  connected to
the grid,  it is not possible to conclude with  certainty  that there will be no
significant interruptions in service.

In addition,  dependable voice and data telecommunications are critical to EUA's
ongoing  operations.  EUA's internal  telecommunication  systems are either Year
2000 ready now, or on schedule to become Year 2000 ready by June 30,  1999.  EUA
also relies heavily on external  telecommunication  systems, i.e., the local and
regional  telephone  systems,  and has  identified  these  providers as critical
vendors.  EUA has made direct  contact  with  representatives  of the  telephone
companies on which EUA depends,  each of which anticipates being Year 2000 ready
and devoid of major system failures.

No other significant  reasonably  likely failure scenarios  stemming solely from
Year 2000 related problems have been identified thus far. Accordingly,  EUA does
not currently believe that any Year 2000 related risks in and of themselves

                                      -15-
<PAGE>

constitute reasonably likely worst case scenarios. Rather, EUA's most reasonably
likely Year 2000 related worst case scenario would be the occurrence of isolated
year 2000 failures such as described  above in conjunction  with a severe winter
storm.  However,  EUA  believes  that such year 2000  failures  would not likely
affect whether the storm event would have a material impact on EUA's business or
financial condition.

Year 2000 Contingency Plans:  Contingency  planning teams consisting of managers
and employees experienced in system reliability, disaster recovery and risk have
been  established  and are  responsible for developing  contingency  plans.  The
overall strategy will be to identify Year 2000 risks, both internal and external
to EUA, that could have a material impact on EUA's  operations or financial well
being.  Preliminary  plans are expected by the end of the first quarter of 1999.
Final plans are scheduled to be in place and ready to  implement,  if necessary,
by June 30, 1999.

Summary:  The  amount of effort and  resources  necessary  to address  Year 2000
issues and make EUA Year 2000 ready is significant. There are dedicated teams in
place to ensure  EUA's  transition  into the next  century  occurs with  minimal
disruption.  EUA's  Year 2000  program is on  schedule  and in  accordance  with
timetables  and  progress  points  published  by  the  North  American  Electric
Reliability Council. In addition, EUA is utilizing outside technical consultants
and other experts to help ensure EUA's Year 2000 program remains on schedule and
effective.  Management  believes EUA's Year 2000 project is well managed and has
the appropriate resources and plans in place to ensure the Company is positioned
for a successful transition to the Year 2000.

The foregoing constitutes a Year 2000 Statement and Readiness Disclosure subject
to the protections  afforded it as such by the federal Year 2000 Information and
Readiness Disclosure Act of 1998."

                                      -16-
<PAGE>

                      PART III INFORMATION RELATING TO NEES

1.   Business description

NEES  is  a  public  utility  holding  company   headquartered  in  Westborough,
Massachusetts.  NEES' principal activities are the transmission and distribution
of electricity  in  Massachusetts,  Rhode Island and New Hampshire.  NEES serves
approximately 1.3 million customers through its retail electric companies. NEES'
principal   operating   companies  are  Massachusetts   Electric  Company,   The
Narragansett  Electric  Company,  Granite  State  Electric  Company,   Nantucket
Electric Company and New England Power Company.

NEES is one of the leading electric utilities in the Northeast US. It was one of
the first  utilities  in the US to finalise  restructuring  plans that  provided
guaranteed  savings to customers  and that provided for the recovery of stranded
costs, and one of the first to agree to divest its generation business.

Other subsidiaries include NEESCom, a telecommunications  network infrastructure
provider, and AllEnergy, an unregulated energy marketing company.

On 1 February,  1999, NEES announced that it had signed a merger agreement under
which NEES will acquire all of the outstanding shares of EUA.

2.   Historical financial information

The  financial  information  set out in this  part  has been  extracted  without
material adjustment from the NEES 1998 and 1997 Annual Reports which include the
audited consolidated financial statements for the three years ended 31 December,
1998. The financial information has been prepared in accordance with US GAAP and
under the accounting  policies set out in the notes below.  US GAAP differs from
UK  GAAP  in  certain  material  respects.  The  main  differences  between  the
accounting  policies adopted by NEES under US GAAP and those adopted by National
Grid under UK GAAP,  which impact on net income and common share equity,  relate
to the  accounting for pension  costs,  deferred  taxation and the allowance for
equity funds used during  construction.  A summary of these  differences for the
three years to and at 31 December, 1998 is set out in section 3 below.

The financial information set out in this part covers a period during which NEES
operated  as  a  vertically   integrated   electric  utility,   engaged  in  the
transmission, distribution, sale and generation of electricity. As Notes C and D
to the financial statements explain,  NEES' electricity supply markets have been
opened to competition  and on 1 September,  1998, NEES completed the sale of its
fossil-fuel and hydro-electric  generation assets. As a consequence,  the future
financial  profile of NEES may differ  significantly  from that presented by the
historic financial information set out below.

                                      -17-
<PAGE>

<TABLE>
<CAPTION>
NEES Group
Statements of Consolidated Income
Year ended 31 December ($ thousand, except per share data)

                                                                             1998            1997            1996

<S>                                                                    <C>             <C>             <C>       
Operating revenue                                                      $2,420,533      $2,502,591      $2,350,698
                                                                       ----------      ----------      ----------
Operating expenses:
Fuel for generation                                                       229,722         372,461         334,994
Purchased electric energy                                                 633,347         528,229         509,400
Other operation                                                           675,806         556,658         501,090
Maintenance                                                               109,040         143,372         127,785
Depreciation and amortisation                                             206,662         236,492         246,379
Taxes, other than income taxes                                            134,763         146,494         143,733
Income taxes                                                              122,354         152,024         139,199
                                                                       ----------      ----------      ----------
Total operating expenses                                                2,111,694       2,135,730       2,002,580
                                                                       ----------      ----------      ----------
Operating income                                                          308,839         366,861         348,118
Other income:
Allowance for equity funds used during construction                           633              --              --
Equity in income of generating companies                                    9,437          10,240          10,334
Other income (expense), net                                               (3,262)        (15,755)         (8,166)
                                                                       ----------      ----------      ----------
Operating and other income                                                315,647         361,346         350,286
                                                                       ----------      ----------      ----------
Interest:
Interest on long-term debt                                                 89,805         107,311         110,479
Other interest                                                             27,822          16,939          19,527
Allowance for borrowed funds used during construction                     (1,754)         (1,908)         (2,246)
                                                                       ----------      ----------      ----------
Total interest                                                            115,873         122,342         127,760
                                                                       ----------      ----------      ----------
Income after interest                                                     199,774         239,004         222,526
Preferred dividends and net gain/loss on reacquisition of preferred         3,454          12,319           6,463
stock of subsidiaries
Minority interests                                                          6,278           6,647           7,127
                                                                       ----------      ----------      ----------
Net income                                                              $ 190,042       $ 220,038       $ 208,936
                                                                       ==========      ==========      ==========
Average common shares - Basic                                          62,359,122      64,899,322      64,960,496
Average common shares - Diluted                                        62,456,103      64,952,185      64,986,136
Per share data:
Net income - Basic                                                         $ 3.05          $ 3.39          $ 3.22
Net income - Diluted                                                       $ 3.04          $ 3.39          $ 3.22
Dividends declared                                                         $ 2.36          $ 2.36          $ 2.36
                                                                       ----------      ----------      ----------

Statements of Consolidated Retained Earnings
Year ended 31 December ($ thousand)
                                                                             1998            1997            1996
Retained earnings at beginning of year                                  $ 954,518       $ 887,292       $ 831,529
Net income                                                                190,042         220,038         208,936
Dividends declared on common shares                                     (145,648)       (152,812)       (153,173)
                                                                       ----------      ----------      ----------
Retained earnings at end of year                                        $ 998,912       $ 954,518       $ 887,292
                                                                       ==========      ==========      ==========

See accompanying notes to consolidated financial statements.
</TABLE>

                                      -18-
<PAGE>

<TABLE>
<CAPTION>
NEES Group
Consolidated Balance Sheets
At 31 December ($ thousand)

                                                                             1998            1997            1996
<S>                                                                    <C>             <C>             <C>       
Assets
Utility plant, at original cost                                        $4,130,102      $5,860,101      $5,692,956
Less accumulated provisions for depreciation and amortisation           1,694,653       1,995,017       1,853,003
                                                                       ----------      ----------      ----------
                                                                        2,435,449       3,865,084       3,839,953
Construction work in progress                                              52,977          48,708          56,652
                                                                       ----------      ----------      ----------
Net utility plant                                                       2,488,426       3,913,792       3,896,605
                                                                       ----------      ----------      ----------
Oil and gas properties, at full cost (Note A)                                  --       1,299,817       1,286,661
Less accumulated provision for amortisation                                    --       1,128,659       1,081,940
                                                                       ----------      ----------      ----------
Net oil and gas properties                                                     --         171,158         204,721
                                                                       ----------      ----------      ----------
Investments:
Nuclear power companies, at equity (Note E)                                48,538          49,825          47,902
Other subsidiaries, at equity                                               2,374          37,418          40,124
Other investments                                                         169,196         117,645          96,399
                                                                       ----------      ----------      ----------
Total investments                                                         220,108         204,888         184,425
                                                                       ----------      ----------      ----------
Current assets:
Cash                                                                      187,673          14,264           8,477
Marketable securities                                                      57,915              --              --
Accounts receivable, less reserves of $18,196, $17,834 and $18,702        294,943         257,185         262,103
Unbilled revenues                                                          87,467          71,260          59,093
Fuel, materials, and supplies, at average cost                             38,339          66,509          74,111
Prepaid and other current assets                                           57,081          64,265          85,096
                                                                       ----------      ----------      ----------
Total current assets                                                      723,418         473,483         488,880
                                                                       ----------      ----------      ----------
Regulatory assets (Note C)                                              1,599,657         532,213         431,079
Deferred charges and other assets                                          38,926          16,113          17,541
                                                                       ----------      ----------      ----------
                                                                       $5,070,535      $5,311,647      $5,223,251
                                                                       ==========      ==========      ==========
Capitalisation and liabilities
Capitalisation (see accompanying statements):
Common share equity                                                    $1,570,003      $1,744,442      $1,685,417
Minority interests in consolidated subsidiaries                            38,742          43,062          46,293
Cumulative preferred stock of subsidiaries                                 19,480          39,113         126,166
Long-term debt                                                          1,055,740       1,487,481       1,614,578
                                                                       ----------      ----------      ----------
Total capitalisation                                                    2,683,965       3,314,098       3,472,454
                                                                       ----------      ----------      ----------
Current liabilities:
Long-term debt due within one year                                         36,307          89,910          79,705
Short-term debt                                                                --         251,950         145,050
Accounts payable                                                          204,992         136,218         148,592
Accrued taxes                                                              24,196          14,831          14,911
Accrued interest                                                           16,680          24,969          27,494
Dividends payable                                                          34,412          36,162          37,276
Other current liabilities (Note H)                                        142,975         120,002         109,582
                                                                       ----------      ----------      ----------
Total current liabilities                                                 459,562         674,042         562,610
                                                                       ----------      ----------      ----------
Deferred federal and state income taxes                                   472,140         720,375         750,929
Unamortised investment tax credits                                         65,292          90,018          91,936

                                      -19-
<PAGE>

                                                                             1998            1997            1996
Accrued Yankee nuclear plant costs (Note E)                               242,138         299,564         166,413
Purchased power obligations                                               832,668              --              --
Other reserves and deferred credits                                       314,770         213,550         178,909
Commitments and contingencies (Note E)
                                                                       $5,070,535      $5,311,647      $5,223,251

See accompanying notes to consolidated financial statements.
</TABLE>

                                      -20-
<PAGE>

<TABLE>
<CAPTION>


NEES Group
Consolidated Statements of Cash Flows
Year ended 31 December ($ thousand)

                                                                                 1998              1997             1996
<S>                                                                         <C>               <C>              <C>

Operating activities
Net income                                                                  $ 190,042         $ 220,038        $ 208,936
Adjustments to reconcile net income to net cash provided by
operating activities:
Depreciation and amortisation                                                 211,069           239,654          250,508
Deferred income taxes and investment tax credits, net                       (273,448)          (31,178)         (30,328)
Allowance for funds used during construction                                  (2,387)           (1,908)          (2,246)
Buyout of purchased power contracts                                         (326,590)                --               --
Minority interests                                                              6,278             6,647            7,127
Decrease (increase) in accounts receivable, net and unbilled                 (44,682)             4,217           30,770
revenues
Decrease (increase) in fuel, materials, and supplies                         (19,141)            10,664              126
Decrease (increase) in prepaid and other current assets                         2,708            24,729          (7,209)
Increase (decrease) in accounts payable                                        63,232          (15,710)          (9,568)
Increase (decrease) in other current liabilities                               22,241           (2,718)           33,999
Other, net                                                                     13,481            66,678           40,455
                                                                            ---------         ---------         --------

Net cash provided by (used in) operating activities                       $ (157,197)         $ 521,113        $ 522,570
                                                                            ---------         ---------         --------

Investing activities
Proceeds from sale of generating assets                                   $ 1,728,588               $--              $--
Plant expenditures, excluding allowance for funds used during               (181,941)         (203,095)        (234,409)
construction
Oil and gas exploration and development                                            --          (13,156)         (20,371)
Proceeds from sale of New England Energy Incorporated oil and                  50,000                --               --
gas property
Purchase of available-for-sale securities, net                               (57,915)                --               --
Other investing activities                                                   (46,718)          (22,669)         (10,309)
                                                                            ---------         ---------         --------
Net cash provided by (used in) investing activities                       $ 1,492,014       $ (238,920)      $ (265,089)
                                                                            ---------         ---------         --------
Financing activities
Dividends paid to minority interests                                        $ (6,704)         $ (6,809)        $ (8,878)
Dividends paid on NEES common shares                                        (147,350)         (152,763)        (153,759)
Short-term debt                                                             (251,950)           105,900         (59,862)
Long-term debt - issues                                                        55,000            25,000           97,850
Long-term debt - retirements                                                (543,630)         (142,205)        (106,811)
Preferred stock - redemptions                                                (19,614)          (87,221)         (20,900)
Premium on reacquisition of long-term debt                                   (22,116)           (2,163)               --
Return of capital to minority interests and related premium                   (3,786)           (3,348)          (1,633)
Repurchase of common shares                                                 (221,258)          (12,797)          (2,075)
                                                                            ---------         ---------         --------
Net cash provided by (used in) financing activities                     $ (1,161,408)       $ (276,406)      $ (256,068)
                                                                            ---------         ---------         --------
Net increase in cash and cash equivalents                                   $ 173,409           $ 5,787          $ 1,413
Cash and cash equivalents at beginning of year                                 14,264             8,477            7,064
                                                                            ---------         ---------         --------
Cash and cash equivalents at end of year                                    $ 187,673          $ 14,264          $ 8,477
                                                                            =========         =========         ========
Supplementary information
Interest paid less amounts capitalised                                      $ 114,316         $ 115,545        $ 119,710
                                                                            ---------         ---------         --------
Federal and state income taxes paid                                         $ 399,754         $ 174,000        $ 168,255
                                                                            ---------         ---------         --------
Dividends received from investments at equity                                $ 12,387          $ 10,802         $ 12,987
                                                                            ---------         ---------         --------
</TABLE>

See accompanying notes to consolidated financial statements.


                                      -21-

<PAGE>



NEES Group
Consolidated Statements of Capitalisation
At 31 December ($ thousand)

<TABLE>
<CAPTION>
                                                                                                1998            1997
<S>                                                                                      <C>             <C> 

Common share equity
Common shares, par value $1 per share
 Authorised - 150,000,000 shares
 Issued - 64,969,652 shares                                                                 $ 64,970        $ 64,970
Paid-in capital                                                                              736,744         736,605
Retained earnings                                                                            998,912         954,518
Treasury stock - 5,798,637 and 431,875 shares, respectively                                (237,767)        (16,415)
Accumulated other comprehensive income, net                                                    7,144           4,764
                                                                                         -----------     -----------
Total common share equity                                                                $ 1,570,003     $ 1,744,442
                                                                                         ===========     ===========
</TABLE>


<TABLE>
<CAPTION>


                                                                     1998             1997          1998           1997
                                                                   Shares           Shares
                                                              outstanding      outstanding
<S>                                                              <C>               <C>           <C>           <C>

Cumulative preferred stock of subsidiaries
$100 Par value
 4.44% to 4.76%                                                    52,745          106,400       $ 5,275       $ 10,640
 6.00% to 6.99%                                                    69,672          108,690         6,967         10,869
$50 Par value
 4.50% to 6.95%                                                   144,766          256,000         7,238         12,800
$25 Par value
 6.84%                                                                 --          192,160            --          4,804
                                                                  -------          -------      --------       --------
Total cumulative preferred stock of subsidiaries
(annual dividend requirement of $1,091 for 1998 and
$2,284 for 199                                                    267,183          663,250      $ 19,480       $ 39,113
                                                                  =======          =======      ========       ========
</TABLE>


<TABLE>
<CAPTION>



                                                        Maturity                Rate              1998              1997
<S>                                            <C>                     <C>                    <C>              <C>

Long-term debt (Note I)
Mortgage bonds                                 1998 through 2000       6.040%-8.280%          $ 59,000         $ 199,000
                                               2002 through 2005       6.240%-8.520%           156,500           191,500
                                               2006 through 2015       5.720%-7.250%            80,000            93,500
                                               2021 through 2028       6.910%-9.125%           252,200           393,700
                                               2018 through 2022            Variable                --           371,850
Pollution control revenue bonds
New England Power Company                      2018 through 2022            Variable           371,850                --
Notes
Granite State Electric Company                 2001 through 2028       7.300%-9.440%            20,000            15,000
Nantucket Electric Company                     1998 through 2017       4.600%-8.500%            29,265            30,735
New England Energy Incorporated                1998 through 2002            Variable                --           122,000
Hydro-Transmission companies                   2001 through 2015       8.820%-9.410%           124,970           136,490
Narragansett Energy Resources                               2010              7.250%                --            28,640
Company
AllEnergy Marketing Company, L.L.C.            2001 through 2003       0.000%-8.000%             1,135                --
Unamortised discounts and                                                                      (2,873)           (5,024)
premiums, net                                                                              -----------       -----------
Total long-term debt                                                                         1,092,047         1,577,391
Long-term debt due in one year                                                                (36,307)          (89,910)
                                                                                           -----------       -----------

                                                                                           $ 1,055,740       $ 1,487,481
                                                                                           ===========       ===========
</TABLE>
See accompanying notes to consolidated financial statements.
                                      -22-
<PAGE>

<TABLE>
<CAPTION>


NEES Group
Statements of Consolidated Comprehensive Income
At 31 December ($ thousand)

                                                                                    1998           1997           1996
<S>                                                                            <C>            <C>            <C> 

Net income                                                                     $ 190,042      $ 220,038      $ 208,936
Other comprehensive income, net of tax:
Unrealised gains, net of tax expense of $2,762, $3,053 and $0
respectively                                                                       5,466          4,731             --
Less: Reclassification adjustments for realised gains/(losses) included in
net income net of tax expense/(benefit) of $109, $(21) and $0
respectively                                                                         169           (33)             --
Minimum pension liability adjustment, net of tax expense of $1,570, $0
and $0, respectively                                                             (2,917)             --             --
                                                                               ---------      ---------      ---------
Total comprehensive income                                                     $ 192,422      $ 224,802      $ 208,936

</TABLE>


See accompanying notes to consolidated financial statements.


                                      -23-

<PAGE>



NEES Group

Notes to Consolidated Financial Statements

Note A - Significant Accounting Policies

1. Nature of operations

NEES  is  a  public  utility  holding  company   headquartered  in  Westborough,
Massachusetts.  NEES' regulated  subsidiaries  are engaged in the  transmission,
distribution,   and  sale  of  electricity.   NEES'   electricity   distribution
subsidiaries serve 1.3 million customers in Massachusetts, Rhode Island, and New
Hampshire.  Unregulated  subsidiaries  are  engaged in the  marketing  of energy
commodities and services and the construction and leasing of  telecommunications
infrastructure.

The NEES system  provides  electric  service to distribution  customers  through
separate    distribution    subsidiaries:    Massachusetts    Electric   Company
(Massachusetts  Electric) and Nantucket Electric Company  (Nantucket  Electric),
which operate in Massachusetts;  The Narragansett Electric Company (Narragansett
Electric),  which operates in Rhode Island;  and Granite State Electric  Company
(Granite State Electric), which operates in New Hampshire.

2. Basis of consolidation and financial statement presentation

The  consolidated  financial  statements  include  the  accounts of NEES and all
subsidiaries  except New England  Electric  Transmission  Corporation,  which is
recorded under the equity method.  Presentation of this subsidiary on the equity
basis is not  material to the  consolidated  financial  statements.  New England
Power Company (NEP) has a minority interest in four regional nuclear  generating
companies (Yankees). NEP accounts for these ownership interests under the equity
method.  During 1997,  NEES increased its ownership from 50 per cent. to 100 per
cent. of AllEnergy  Marketing  Company,  LLC  (AllEnergy),  an energy  marketing
enterprise.

NEES owns 50.4 per cent.  of the  outstanding  common  stock of both New England
Hydro-Transmission  Electric  Company,  Inc. and New England  Hydro-Transmission
Corporation   (Hydro-Transmission   companies).   The   consolidated   financial
statements include 100 per cent. of the assets, liabilities, and earnings of the
Hydro-Transmission  companies.  Minority interests, which represent the minority
stockholders'   proportionate   share  of  the   equity   and   income   of  the
Hydro-Transmission  companies,  have  been  separately  disclosed  on  the  NEES
consolidated balance sheets and income statements.

NEP is also a 12 per cent. and 10 per cent.  joint owner,  respectively,  of the
Millstone 3 and Seabrook 1 nuclear  generating units, each 1,150 megawatts (MW).
NEP's share of the related  expenses  for these units is included in  "Operating
expenses".

The accounts of NEES and its utility  subsidiaries  are maintained in accordance
with the Uniform  System of Accounts  prescribed  by  regulatory  bodies  having
jurisdiction.  All significant  intercompany  transactions  between consolidated
subsidiaries have been eliminated.

In preparing the financial statements,  management is required to make estimates
that affect the reported  amounts of assets and  liabilities  and disclosures of
asset recovery and contingent  liabilities as of the date of the balance sheets,
and revenues and expenses for the period. These estimates may differ from actual
amounts  if  future  circumstances  cause a change  in the  assumptions  used to
calculate these estimates.

3. Electric sales revenue

All of NEES' distribution subsidiaries accrue revenues for electricity delivered
but not yet billed  (unbilled  revenues),  with the  exception of Granite  State
Electric. Accrued revenues were also recorded in accordance with rate adjustment
mechanisms,  which included  Massachusetts  Electric's and Nantucket  Electric's
purchased power cost adjustment

                                      -24-

<PAGE>



(PPCA)  mechanisms.  Upon approval of the  Massachusetts  Settlement in November
1997, the PPCA  mechanisms were  eliminated as of 31 July,  1996.  Pending final
approval of the settlement,  Massachusetts  Electric and Nantucket  Electric had
accrued  refund  reserves  of $9 million for the last five months of 1996 and an
additional $9 million in the first nine months of 1997.  Upon final  approval of
the  settlement,  these refund  reserves were reversed in the fourth  quarter of
1997.

4. Allowance for funds used during construction (AFDC)

The utility  subsidiaries  capitalise AFDC as part of construction  costs.  AFDC
represents  the  composite  interest and equity  costs of capital  funds used to
finance that  portion of  construction  costs not yet eligible for  inclusion in
rate base.  AFDC is  capitalised  in  "Utility  plant" with  offsetting  noncash
credits to "Other income" and  "Interest".  This method is in accordance with an
established rate-making practice under which a utility is permitted a return on,
and the recovery of,  prudently  incurred  capital costs through their  ultimate
inclusion in rate base and in the provision for depreciation.

5. Depreciation and amortisation

The  depreciation  and  amortisation  expense  included  in  the  statements  of
consolidated income is composed of the following:

<TABLE>
<CAPTION>

Year ended 31 December ($ thousand)                                                1998           1997           1996
<S>                                                                           <C>             <C>            <C>

Depreciation-- transmission and distribution related                          $ 112,254       $ 99,114       $ 93,897
Depreciation-- all other                                                         53,293         72,896         77,296
Nuclear decommissioning costs (see Note E-4)                                      2,719          2,638          2,629
Amortisation:
 Oil and gas properties (see Note A-6)                                               --         46,718         49,163
 Investment in Seabrook 1 pursuant to rate settlement                                --             --         15,210
 Seabrook 2 property losses                                                          --            113          6,280
 Millstone 3 accelerated amortisation, pursuant to 1995 rate settlement          22,040         15,013          1,904
 Regulatory assets covered by CTC (see Note C)                                   16,356             --             --
                                                                              ---------      ---------      ---------
Total depreciation and amortisation expense                                   $ 206,662      $ 236,492      $ 246,379
                                                                              =========      =========      =========

</TABLE>


Depreciation is provided  annually on a straight-line  basis.  The provision for
depreciation as a percentage of weighted  average  depreciable  transmission and
distribution  property was 3.4 per cent. in 1998, 3.2 per cent. in 1997, and 3.1
per cent. in 1996. In 1996, New England  Energy  Incorporated  (NEEI),  a wholly
owned  subsidiary  of  NEES,  reduced  amortisation  expense  of its oil and gas
properties by $13 million to correct amounts  recorded in the years 1990 through
1996.  Amortisation  of  Seabrook  and  Millstone  3  investments  above  normal
depreciation accruals was in accordance with rate settlement agreements.

6. Oil and gas investments

NEEI  participated  in  a  rate-regulated  domestic  oil  and  gas  exploration,
development and production programme through a partnership with a non-affiliated
oil company.  Losses from this programme,  calculated under the full cost method
of  accounting,  have  been  charged  to NEP,  and  ultimately  to  distribution
customers,  in  accordance  with SEC and Federal  Energy  Regulatory  Commission
(FERC) approvals. Such losses were $11 million and $22 million in 1997 and 1996,
respectively.  In February  1998,  NEEI sold its oil and gas  properties for $50
million.  NEEI's loss on the sale of approximately $120 million, before tax, has
been  reimbursed by NEP, and is being  recovered  through  contract  termination
charges (CTCs). See Note C for a discussion of regulatory asset recovery.


                                      -25-

<PAGE>



7. Cash

NEES and its  subsidiaries  classify  short-term  investments  with an  original
maturity of 90 days or less as cash.

8. Marketable securities

At 31 December, 1998, marketable securities consist primarily of corporate debt,
mortgage-backed  government securities, and collateralised mortgage obligations.
Marketable  securities  have been  categorised as  available-for-sale  and, as a
result,  are carried at fair value,  based generally on quoted market prices. At
31  December,  1998,  NEES  had  marketable  securities  with  a fair  value  of
approximately  $58 million.  Fair value closely  approximated  cost.  Marketable
securities  are available for current  operations  and are classified as current
assets, and have contractual maturities of less than two years. During 1998, the
proceeds  received  from the  sales  of  securities  held as  available-for-sale
totalled  approximately $64 million, which resulted in immaterial realised gains
and losses.

9. Average common shares

The following table summarises the reconciling amounts between basic and diluted
earnings per share (EPS) computations, in compliance with Statement of Financial
Accounting  Standards No. 128, Earnings per Share, which became effective during
1997 and requires restatement for all prior-period EPS data presented.

<TABLE>
<CAPTION>

Year ended 31 December                                                           1998            1997             1996
<S>                                                                         <C>             <C>              <C> 

Income after interest and minority interest (thousand)                      $ 193,496       $ 232,357        $ 215,399
Less: preferred stock dividends and net gain/loss on reacquisition,
of preferred stock of subsidiaries (thousand)                                 $ 3,454        $ 12,319          $ 6,463
                                                                           ----------      ----------       ----------
Income available to common shareholders (thousand)                          $ 190,042       $ 220,038        $ 208,936
                                                                           ----------      ----------       ----------
Basic EPS                                                                      $ 3.05          $ 3.39           $ 3.22
Diluted EPS                                                                    $ 3.04          $ 3.39           $ 3.22
                                                                           ----------      ----------       ----------
Average common shares outstanding for Basic EPS                            62,359,122      64,899,322       64,960,496
Effect of Dilutive Securities
Average potential common shares related to share-based
compensation plans                                                             96,981          52,863           25,640
                                                                           ----------      ----------       ----------
Average common shares outstanding for Diluted EPS                          62,456,103      64,952,185       64,986,136
                                                                           ==========      ==========       ==========
</TABLE>


10. New accounting standards

In 1997, the Financial  Accounting  Standards Board (FASB) released Statement of
Financial  Accounting  Standards  No.  131,  Disclosure  about  Segments  of  an
Enterprise and Related  Information  (FAS 131),  which went into effect in 1998.
FAS 131 requires the reporting in financial statements of certain new additional
information about operating  segments of a business.  FAS 131 does not currently
impact NEES' reporting requirements.

In February 1998, the FASB issued  Statement of Financial  Accounting  Standards
No. 132, Employers' Disclosures about Pensions and Other Postretirement Benefits
(FAS  132),  which  revises  disclosure   requirements  for  pension  and  other
postretirement  benefits.  NEES has adopted FAS 132 in its financial  statements
for the year ending 31 December,  1998.  The adoption of FAS 131 and FAS 132 has
no impact on NEES' operating results, financial position, or cash flows.

11. Derivative instruments

NEES, through its wholly owned indirect subsidiary,  AllEnergy,  uses derivative
instruments to manage  exposure in  fluctuations  in commodity  prices.  At this
time,  AllEnergy uses  derivative  instruments to manage risks  associated  with
natural gas,  propane,  and oil prices.  Hedge  criteria used and accounting for
hedge transactions are in accordance with

                                      -26-

<PAGE>



Statement of  Financial  Accounting  Standards  No. 80,  Accounting  for Futures
Contracts  (FAS 80).  FAS 80 states  that in order to qualify as a hedge,  price
movements in commodity derivatives must be highly correlated with the underlying
hedged commodity and must reduce exposure to market fluctuations  throughout the
hedged period.  Any gain or loss on a derivative that qualifies as a hedge under
FAS 80 is deferred until  recognised in the income  statement in the same period
as the hedged item is recognised in the income statement.

In June 1998, the FASB issued  Statement of Financial  Accounting  Standards No.
133,  Accounting for Derivative  Instruments  and Hedging  Activities (FAS 133),
which establishes  accounting and reporting standards for such instruments.  FAS
133 requires  recognition of all  derivatives as either assets or liabilities on
the balance sheet and requires  measurement of those  instruments at fair value.
If  certain  conditions  are met,  derivatives  may be  treated  as  hedges  and
accounted for in the income statement in the same manner as under FAS 80. To the
extent  these  conditions  are not  met,  that  portion  of the  gain or loss is
reported  in  earnings  immediately.  FAS  133 is  effective  for  fiscal  years
beginning after 15 June, 1999.

As of 31 December,  1998, all of AllEnergy's derivative instruments qualified as
hedges  under FAS 80, with  limited  exceptions,  and are expected to qualify as
hedges under FAS 133. The derivative  instruments  that do not qualify as hedges
under FAS 80 and are recognisable in income immediately are immaterial to NEES.

Note B - Merger Agreements

Merger Agreement with National Grid

On 11 December,  1998,  NEES,  National Grid,  and NGG Holdings  entered into an
Agreement  and  Plan  of  Merger  (Merger  Agreement).  Pursuant  to the  Merger
Agreement,  NGG Holdings will merge with and into NEES (the  Merger),  with NEES
becoming a wholly owned  subsidiary of National  Grid.  NEES  shareholders  will
receive $53.75 per share in cash, which will be increased at a rate of $0.003288
each day beginning six months after shareholder approval of the Merger until the
Merger is completed, up to a maximum price of $54.35 per share.

The Merger is subject to approval  by a majority  vote of NEES  shareholders  as
well as National Grid shareholder approval.  In addition,  the Merger is subject
to a number of regulatory and other approvals and consents,  including approvals
by the SEC, FERC, and Nuclear Regulatory  Commission (NRC),  support or approval
from  the  states  in  which  NEES   operates,   and  approval  under  both  the
Hart-Scott-Rodino  Antitrust  Improvements  Act of  1976,  as  amended,  and the
Exon-Florio  Provisions  of the Omnibus Trade and  Competitiveness  Act of 1988.
National Grid has obtained governmental  clearance in the UK for the Merger. The
Merger is expected to be completed by early 2000.

Merger Agreement with Eastern Utilities Associates

On 1 February,  1999, NEES,  Eastern  Utilities  Associates  (EUA), and Research
Drive LLC (Research Drive), a directly and indirectly wholly owned subsidiary of
NEES, entered into an Agreement and Plan of Merger (EUA Agreement).  Pursuant to
the EUA  Agreement,  Research  Drive  will  merge  with and into  EUA,  with EUA
becoming a wholly owned subsidiary of NEES. EUA shareholders will receive $31.00
per  share  in  cash,  which  will be  increased  at a rate of  $0.003  each day
beginning six months after EUA shareholder approval of the EUA acquisition until
the acquisition is completed or until 30 April, 2000, whichever is earlier.

The  acquisition  of EUA is  subject to  approval  by a  two-thirds  vote of EUA
shareholders.  In addition, the acquisition is subject to a number of regulatory
and other approvals and consents, including approvals by the SEC, FERC, and NRC,
support or approval  from the states in which EUA operates,  and approval  under
the  Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as amended. The EUA
acquisition is expected to be completed by early 2000.

Note C - Industry Restructuring

During 1998, pursuant to legislation enacted in Massachusetts, Rhode Island, and
New  Hampshire,   and  settlement  agreements  approved  by  state  and  federal
regulators (the Settlement Agreements), all NEES customers were provided

                                      -27-

<PAGE>



the right to  purchase  electricity  from the power  supplier  of their  choice.
Customers who do not choose a power  supplier are able, for a period of time, to
continue to purchase their  electricity  from the NEES companies at a transition
rate ("standard  offer generation  service") which,  when combined with delivery
charges,  results  in  total  rate  reductions  ranging  from 8 to 24 per  cent.
compared  with  rates  that had been in  effect  prior  to the  introduction  of
customer choice.  Substantially  all of the obligations of the NEES companies to
provide standard offer generation service are backed by contracts with USGen New
England,  Inc. (USGen), an indirect wholly owned subsidiary of PG&E Corporation,
and other power suppliers.

The Settlement Agreements provide that the costs of NEP's generating investments
and  related  contractual   commitments,   that  were  not  recovered  from  the
divestiture of those investments  ("stranded  costs"),  are to be recovered from
NEP's wholesale customers through CTCs. The affiliated wholesale  customers,  in
turn, are recovering  those costs through their delivery charges to distribution
customers. Under the Settlement Agreements, the recovery of NEP's stranded costs
is divided into several categories. Unrecovered costs associated with generating
plants  (nuclear  and  non-nuclear)  and most  regulatory  assets  will be fully
recovered  through  the CTC by the end of  2000  and  earn a  return  on  equity
averaging 9.7 per cent.  NEP's obligation  relating to the above-market  cost of
purchased  power  contracts  and  nuclear  decommissioning  costs are  recovered
through  the CTC over a  longer  period  of time,  as such  costs  are  actually
incurred.  The CTC rate was originally set at 2.8 cents per kilowatthour  (kWh),
and  subsequently  reduced  to  approximately  1.5  cents  or less  per kWh upon
completion of the sale of NEP's non-nuclear generating business. As the CTC rate
declines,  NEP, under certain of the  Settlement  Agreements,  earns  incentives
based  on  successful   mitigation  of  its  stranded  costs.  These  incentives
supplement NEP's return on equity.  Finally,  the Settlement  Agreements provide
that until such time as NEP divests its operating  nuclear  interests,  NEP will
share  with  customers,  through  the CTC,  80 per  cent.  of the  revenues  and
operating costs related to the units, with shareholders retaining the balance.

Accounting Implications

Historically,  electric utility rates have been based on a utility's costs. As a
result,  electric utilities are subject to certain accounting standards that are
not applicable to other business enterprises in general.  Statement of Financial
Accounting  Standards  No. 71,  Accounting  for the Effects of Certain  Types of
Regulation (FAS 71), requires regulated entities, in appropriate  circumstances,
to establish regulatory assets, and thereby defer the income statement impact of
these  charges  because  they are  expected to be  included  in future  customer
charges.  In 1997,  the  Emerging  Issues  Task  Force  (EITF) of the  Financial
Accounting  Standards Board concluded that a utility that had received  approval
to recover stranded costs through regulated  transmission and distribution rates
would be  permitted  to  continue  to apply FAS 71 to the  recovery  of stranded
costs.

NEP has  received  authorisation  from  the  FERC  to  recover  through  the CTC
substantially  all of the costs associated with its former  generating  business
not recovered  through the sale of that business.  Additionally,  FERC Order No.
888 enables transmission  companies to recover their specific costs of providing
transmission service. Therefore,  substantially all of NEP's business, including
the recovery of its stranded costs,  remains under  cost-based rate  regulation.
Under existing ratemaking practices,  NEES' distribution companies will have the
ability to recover  through  rates their  specific  costs of  providing  ongoing
distribution services. NEES believes these factors and the EITF conclusion allow
its principal  utility  subsidiaries to continue to apply FAS 71. Because of the
nuclear cost-sharing provisions related to NEP's CTC, NEP ceased applying FAS 71
in 1997 to 20 per cent. of its ongoing nuclear  operations,  the impact of which
is immaterial.

Currently,  there is much  regulatory  and other  movement  toward  establishing
performance-based  rates. It is possible that the adoption of  performance-based
rates,   future  regulatory  rules,  or  other  circumstances  could  cause  the
application of FAS 71 to be discontinued. This discontinuation would result in a
non-cash write-off of previously established regulatory assets,  including those
being recovered  through NEP's CTC. In addition,  reserves for  depreciation may
also have to be increased to comply with unregulated accounting practices.

As a result of applying  FAS 71, NEES has  recorded a  regulatory  asset for the
costs that are recoverable from customers  through the CTC. The regulatory asset
reflects the loss on the sale of NEES' oil and gas business and the unrecovered

                                      -28-

<PAGE>



plant costs in operating  nuclear plants  (assuming no market value),  the costs
associated with permanently  closed nuclear power plants,  and the present value
of the  payments  associated  with  the  above-market  cost of  purchased  power
contracts,  reduced  by the gain from the sale of NEP's  non-nuclear  generating
business.  At 31 December,  1998,  the  regulatory  asset related to the CTC was
approximately  $1.5  billion of which $1.2 billion  related to the  above-market
costs of purchased power contracts.  All but  approximately $60 million of total
net  regulatory  assets are  recoverable  under NEP's CTC.  These  costs  relate
primarily  to NEES'  distribution  subsidiaries  and  consist  primarily  of $48
million of deferred  FAS 109 costs (see Note G), and $23 million of  unamortised
loss  on  reacquired  debt,  partially  offset  by  net  regulatory  liabilities
classified in current assets and liabilities.

As described  above,  the CTC regulatory  asset includes the  unrecovered  plant
costs associated with NEP's interest in operating  nuclear plants.  This balance
sheet treatment is due to NEP's conclusion that its interests in the Millstone 3
and Seabrook 1 nuclear generating units have little, if any, market value. Three
proposed  sales of nuclear units by other  utilities have required the seller to
set aside amounts for decommissioning in excess of the proceeds from the sale of
the units.  Two of these proposed sales were agreed upon prior to the end of the
third quarter of 1998. As a result, at the end of the third quarter of 1998, NEP
recorded  an   impairment   writedown  in  its  reserve  for   depreciation   of
approximately $390 million,  which represents the net book value at 31 December,
1995, less applicable  depreciation  subsequent to that date, of Millstone 3 and
Seabrook 1. Because the Settlement Agreements permit NEP to recover its pre-1996
investment as well as decommissioning  expenses through the CTC, NEP established
a regulatory asset in an amount equal to the impairment writedown.  Should NEP's
efforts  to sell  its  nuclear  interests  result  in a gain  over  the  amounts
remaining in the plant account,  such gain will be credited to customers through
the CTC.

Note D - Divestiture of Generating Business

On  1  September  1998,  NEES   subsidiaries  NEP  and   Narragansett   Electric
(collectively,  the Sellers)  completed the sale of  substantially  all of their
non-nuclear  generating  business  to  USGen.  The  assets  sold  include  three
fossil-fueled and 15 hydroelectric generating stations,  totalling approximately
4,000 MW of capacity,  as well as NEES' 100 per cent.  interest in  Narragansett
Energy  Resources  Company,  a 20 per cent.  general  partner in the Ocean State
Power project,  all of which had a book value of approximately $1.1 billion. The
NEES  companies  received  $1.59  billion for the sale.  The gain on the sale is
passed on to customers as a reduction in CTCs, as described in Note C above.  In
addition,  the NEES companies  were  reimbursed  approximately  $140 million for
costs  associated with early  retirements and special  severance  programmes for
employees  affected by  industry  restructuring,  and the value of  inventories.
USGen  assumed  responsibility  for  environmental  conditions  at the  Sellers'
non-nuclear  generating  stations.  USGen also assumed the Sellers'  obligations
under long-term fuel and fuel transportation  contracts,  and certain collective
bargaining agreements.

As part of the  sale,  NEP also  signed a  purchased  power  transfer  agreement
through which USGen purchased  NEP's  entitlement to  approximately  1,100 MW of
power procured under long-term  contracts in exchange for monthly fixed payments
by NEP  averaging  $9.5  million per month  through  January  2008 (having a net
present value of $833 million) toward the above-market  cost of those contracts.
In some cases,  these transfers  involved formal  assignment of the contracts to
USGen and a release of NEP from further obligations to the power supplier, while
others did not. For those that involved formal  assignment,  NEP was required to
make a lump sum payment  equivalent  to the present  value of the monthly  fixed
payment  obligations  of those  contracts.  On or prior to the closing date, NEP
made lump sum  payments  totalling  approximately  $340 million and was released
from  further  obligations  relating  to two of the  contracts.  These  lump sum
payments are separate from the $833 million figure  referred to above.  USGen is
responsible  for the balance of the costs under the purchased  power  contracts.
The  present  value of the  future  monthly  fixed  payments  is  recorded  as a
liability on the balance sheet. This liability, as well as the lump sum payments
previously made, net of amortisation, are also recorded as a regulatory asset on
the balance sheet.

As part of the  divestiture  plan, in February  1998,  NEEI sold its oil and gas
properties  for  approximately   $50  million.   NEEI's  loss  on  the  sale  of
approximately $120 million, before tax, has been reimbursed by NEP.

In addition, NEP agreed under the Settlement Agreements to endeavour to sell its
minority  interest  in three  nuclear  power  plants and a 60 MW  interest  in a
fossil-fuelled generating station in Maine.

                                      -29-

<PAGE>



Note E - Commitments and Contingencies

1. Plant expenditures

The NEES  subsidiaries'  cash  expenditures for utility plant and investments by
NEES'  unregulated  subsidiaries are estimated to be $280 million in 1999. At 31
December, 1998, substantial commitments had been made relative to future planned
expenditures.

2. Long-term contracts for the purchase of electricity

Historically,  NEP purchased a portion of its electricity  requirements pursuant
to long-term  contracts with owners of various generating units. These contracts
expire in  various  years  from  1998 to 2029.  See Note D for a  discussion  of
USGen's  purchase  of  NEP's  entitlement  to  approximately  1,100  MW of power
procured under long-term contracts.

NEP retained one purchased power contract,  with Vermont Yankee,  which requires
minimum fixed  payments,  even when the supplier is unable to deliver power,  to
cover a  proportionate  share of the  capital and fixed  operating  costs of the
unit. This contract has fixed payment  requirements of approximately $35 million
in 1999, $30 million in 2000, $35 million in 2001 and 2002, $30 million in 2003,
and approximately  $300 million  thereafter.  NEP holds an ownership interest in
Vermont Yankee.

3. Hazardous waste

The Federal  Comprehensive  Environmental  Response,  Compensation and Liability
Act, more commonly  known as the  "Superfund"  law,  imposes  strict,  joint and
several liability, regardless of fault, for remediation of property contaminated
with hazardous substances.  A number of states,  including  Massachusetts,  have
enacted similar laws.

The  electric  utility  industry  typically  utilises  and/or  generates  in its
operations  a range of  potentially  hazardous  products and  by-products.  NEES
subsidiaries  currently have in place an internal  environmental audit programme
and an external waste disposal vendor audit and qualification programme intended
to enhance  compliance  with existing  federal,  state,  and local  requirements
regarding the handling of potentially hazardous products and by-products.

NEES and/or its subsidiaries have been named as potentially  responsible parties
(PRPs)  by either  the  United  States  Environmental  Protection  Agency or the
Massachusetts  Department  of  Environmental  Protection  for 20  sites at which
hazardous  waste is alleged to have been  disposed.  Private  parties  have also
contacted or initiated legal proceedings  against NEES and certain  subsidiaries
regarding hazardous waste clean-up.  The most prevalent types of hazardous waste
sites with which NEES and its subsidiaries have been associated are manufactured
gas  locations.  (Until the early  1970s,  NEES was a combined  electric and gas
holding company system.) NEES is aware of approximately 40 such manufactured gas
locations  including 10 for which the NEES  companies  have been  identified  by
either  federal  or  state  regulatory  agencies  as  PRPs,  mostly  located  in
Massachusetts. NEES has reported the existence of all manufactured gas locations
of which it is aware to state environmental regulatory agencies. NEES is engaged
in various phases of  investigation  and remediation work at approximately 20 of
the manufactured gas locations. NEES and its subsidiaries are currently aware of
other  possible  hazardous  waste sites,  and may in the future  become aware of
additional sites, that they may be held responsible for remediating.

In 1993, the Massachusetts  Department of Public Utilities approved a settlement
agreement  that  provides for the rate recovery of  remediation  costs of former
manufactured  gas sites and  certain  other  hazardous  waste  sites  located in
Massachusetts.  Under that agreement, qualified costs related to these sites are
paid out of a  special  fund  established  on  Massachusetts  Electric's  books.
Rate-recoverable contributions of $3 million, adjusted since 1993 for inflation,
are added  annually  to the fund along with  interest,  lease  payments  and any
recoveries  from  insurance  carriers and other third  parties.  At 31 December,
1998, the fund had a balance of $47 million.

Predicting the potential  costs to  investigate  and remediate  hazardous  waste
sites continues to be difficult.  There are also significant uncertainties as to
the  portion,  if  any,  of  the  investigation  and  remediation  costs  of any
particular

                                      -30-

<PAGE>



hazardous  waste site that may ultimately be borne by NEES or its  subsidiaries.
The NEES  companies  have recovered  amounts from certain  insurers,  and, where
appropriate,  intend to seek recovery  from other  insurers and from other PRPs,
but  it is  uncertain  whether,  and  to  what  extent,  such  efforts  will  be
successful.  At 31 December,  1998,  NEES had total  reserves for  environmental
response costs of $53 million, which includes reserves established in connection
with the  Massachusetts  Electric  hazardous waste fund referred to above.  NEES
believes that hazardous  waste  liabilities  for all sites of which it is aware,
and which are not covered by a rate agreement, are not material to its financial
position.

4. Nuclear units

Nuclear Units Permanently Shut Down

Three regional nuclear generating companies in which NEP has a minority interest
own nuclear  generating  units that have been permanently shut down. These three
units are as follows:

<TABLE>
<CAPTION>

                                                                        NEP's Investment                     Future Estimated
                                                                                                              Billings to NEP

Unit                                                                     %    ($ million)           Date Retired     ($ million)
<S>                                                                     <C>            <C>         <C>                       <C>

Yankee Atomic                                                           30              6          February 1992              24
Connecticut Yankee                                                      15             16          December 1996              75
Maine Yankee                                                            20             16            August 1997             143

</TABLE>

In the  case  of each of  these  units,  NEP has  recorded  a  liability  and an
offsetting  regulatory  asset  reflecting the estimated future billings from the
companies.  In a 1993  decision,  the FERC allowed  Yankee Atomic to recover its
undepreciated   investment   in  the   plant   as  well  as   unfunded   nuclear
decommissioning costs and other costs.  Connecticut Yankee and Maine Yankee have
both filed similar  requests with the FERC.  Several  parties have intervened in
opposition  to both  filings.  In August 1998, a FERC  Administrative  Law Judge
(ALJ)  issued  an  initial  decision  which  would  allow for full  recovery  of
Connecticut  Yankee's  unrecovered  investment,  but  precluded a return on that
investment.  Connecticut Yankee, NEP, and other parties have filed with the FERC
exceptions  to the ALJ's  decision.  Should the FERC  uphold  the ALJ's  initial
decision in its current  form,  NEP's share of the loss of the return  component
would total  approximately  $12 million to $15 million before taxes.  In January
1999,  parties in the Maine Yankee  proceeding filed a comprehensive  settlement
agreement with the FERC,  under which Maine Yankee would recover all unamortised
investment in the plant,  including a return on its equity investment of 6.5 per
cent.,  as well as  decommissioning  costs  and  other  costs.  This  settlement
agreement requires FERC approval. NEP's industry restructuring settlements allow
it to recover all costs that the FERC allows these  Yankee  companies to bill to
NEP.

NEP and several other shareholders  (Sponsors) of Maine Yankee are parties to 27
contracts  (Secondary  Purchase  Agreements)  under which they sold  portions of
their  entitlements  to  Maine  Yankee  power  output  through  2002 to  various
entities,  primarily municipal and cooperative systems in New England (Secondary
Purchasers).  Virtually  all of  the  Secondary  Purchasers  had  ceased  making
payments under the Secondary Purchase Agreements,  claiming that such agreements
excuse  further  payments upon plant  shutdown.  In February  1999, a settlement
agreement  which fully  resolves the dispute  between the Sponsors and Secondary
Purchasers was filed with the FERC,  under which the Secondary  Purchasers would
be required to make  certain  payments to Maine  Yankee,  and, in turn,  to NEP,
related  to both  past and  future  obligations  under  the  Secondary  Purchase
Agreements. This settlement agreement requires FERC approval. Shutdown costs are
recoverable from customers under the Settlement Agreements.

A Maine statute provides that if both Maine Yankee and its decommissioning trust
fund have insufficient assets to pay for the plant  decommissioning,  the owners
of Maine Yankee are jointly and severally liable for the shortfall.

Operating Nuclear Units

NEP has minority  interests in three other  nuclear  generating  units:  Vermont
Yankee, Millstone 3, and Seabrook 1.

                                      -31-

<PAGE>



Uncertainties regarding the future of nuclear generating stations,  particularly
older units, such as Vermont Yankee,  are increasing rapidly and could adversely
affect their service lives,  availability,  and costs. These  uncertainties stem
from a  combination  of  factors,  including  the  acceleration  of  competitive
pressures in the power  generation  industry and  increased  NRC  scrutiny.  NEP
performs periodic economic viability reviews of operating nuclear units in which
it holds ownership interests.

Millstone 3

In July 1998, Millstone 3 returned to full operation after being shut down since
April 1996.  Millstone  3 remains on the NRC "Watch  List",  signifying  that it
continues  to warrant  increased  NRC  attention.  Millstone  3 is operated by a
subsidiary of Northeast  Utilities  (NU). NEP is not an owner of the Millstone 2
nuclear generating unit, which is temporarily shut down under NRC orders, or the
Millstone 1 nuclear  generating  unit,  which has been  permanently shut down. A
criminal investigation related to Millstone 3 is ongoing.

In  August  1997,  NEP  sued NU in  Massachusetts  Superior  Court  for  damages
resulting from the tortious  conduct of NU that caused the shutdown of Millstone
3. NEP's damages include the costs of replacement power during the outage, costs
necessary to return Millstone 3 to safe operation,  and other additional  costs.
Most of NEP's  incremental  replacement  power  costs have been  recovered  from
customers,  either through fuel adjustment  clauses or through provisions in the
Settlement  Agreements.  NEP also seeks punitive damages. NEP also sent a demand
for arbitration to Connecticut  Light & Power Company and Western  Massachusetts
Electric Company,  both subsidiaries of NU, seeking damages resulting from their
breach of  obligations  under an  agreement  with NEP and others  regarding  the
operation and ownership of Millstone 3. The arbitration is scheduled for October
1999.  In July 1998,  the court  denied NU's motion to dismiss and its motion to
stay pending arbitration. NEP subsequently amended its complaint by, among other
things,  adding NU's  Trustees as  defendants.  In December  1998,  NU moved for
summary  judgement.  NEP's suit has been  consolidated with suits filed by other
joint owners.  The court is in the process of  scheduling a trial date.  Some or
all of the damages awarded from the lawsuit would be refunded to customers.

Nuclear Decommissioning

NEP is liable for its share of  decommissioning  costs for Millstone 3, Seabrook
1, and all of the  Yankees.  Decommissioning  costs  include not only  estimated
costs to  decontaminate  the units as  required  by the NRC,  but also  costs to
dismantle the uncontaminated  portion of the units. NEP records  decommissioning
costs on its books  consistent  with its rate  recovery.  NEP is recovering  its
share of projected  decommissioning costs for Millstone 3 and Seabrook 1 through
depreciation  expense.  In  addition,  NEP is paying its  portion  of  projected
decommissioning  costs for all of the Yankees  through  purchased power expense.
Such costs  reflect  estimates of total  decommissioning  costs  approved by the
FERC.

In New  Hampshire,  legislation  was  recently  enacted  which  makes  owners of
Seabrook 1, in which NEP owns a 10 per cent. interest,  proportional  guarantors
for decommissioning costs in the event that an owner without a franchise service
territory fails to fund its share of decommissioning costs.  Currently, a single
owner of an  approximate  12 per  cent.  share of  Seabrook  1 has no  franchise
service territory.

The  New  Hampshire  Nuclear  Decommissioning  Finance  Committee  is  reviewing
Seabrook  Station's  decommissioning  estimate  and  associated  annual  funding
levels.  Among the items being considered is the imposition of joint and several
liability  among the Seabrook  joint  owners for  decommissioning  funding.  NEP
cannot predict what additional liability, if any, may be imposed on it.

The Nuclear  Waste Policy Act of 1982  establishes  that the federal  government
(through the  Department  of Energy  (DOE)) is  responsible  for the disposal of
spent nuclear fuel.  The federal  government  requires NEP to pay a fee based on
its share of the net  generation  from the  Millstone  3 and  Seabrook 1 nuclear
generating units. Prior to 1998, NEP recovered this fee through its fuel clause.
Under the Settlement Agreements,  substantially all of these costs are recovered
through  CTCs.  Similar  costs are  billed  to NEP by  Vermont  Yankee  and also
recovered from customers through the same mechanism. In November 1997, ruling on
a lawsuit brought against the DOE by numerous utilities

                                      -32-

<PAGE>



and state regulatory commissions,  the U.S. Court of Appeals for the District of
Columbia (the Appeals Court) held that the DOE was obligated to begin  disposing
of  utilities'  spent nuclear fuel by 31 January,  1998.  The DOE failed to meet
this deadline,  and is not expected to have a temporary or permanent  repository
for spent nuclear fuel for many years. In February 1998, Maine Yankee petitioned
the Appeals Court to compel the DOE to remove Maine Yankee's spent fuel from the
site. In May 1998,  the Appeals Court rejected the petitions of Maine Yankee and
the other utilities and state regulatory commissions,  stating that the issue of
damages was a contractual matter. The operators of the units in which NEP has an
obligation,  including  Maine Yankee,  Connecticut  Yankee,  and Yankee  Atomic,
continue to pursue damage claims  against the DOE in the Federal Court of Claims
(Claims Court).  In October 1998, the Claims Court ruled that the DOE violated a
commitment  to remove  spent fuel from Yankee  Atomic.  The Claims  Court issued
similar rulings in November 1998 related to cases brought by Connecticut  Yankee
and Maine Yankee.  Further  proceedings will be scheduled by the Claims Court to
decide the amount of damages.

Decommissioning Trust Funds

Each  nuclear  unit in which NEP has an ownership  interest  has  established  a
decommissioning  trust fund or escrow fund into which payments are being made to
meet the projected costs of  decommissioning.  The table below lists information
on each operating nuclear plant in which NEP has an ownership interest.

<TABLE>
<CAPTION>

                                                                    NEP's share of ($ million)

                                                                                 Estimated
                                                      NEP's                         Decom-         Decom-
                                                  Ownership                     missioning     missioning
                                                   Interest      Net Plant        Cost (in           Fund         License
Unit                                                  (%)         Assets           1998 $)      Balances*      Expiration
<S>                                                      <C>          <C>              <C>             <C>           <C> 

Vermont Yankee                                           20           34               105             38            2012
Millstone 3                                              12            9**              67             21            2025
Seabrook 1                                               10           15**              50             10            2026
</TABLE>


*    Certain  additional  amounts are  anticipated  to be available  through tax
     deductions.

**   Represents  post December 1995 spending.  See Note C for a discussion of an
     impairment writedown and establishment of an offsetting regulatory asset.

There is no assurance that  decommissioning  costs actually  incurred by Vermont
Yankee,  Millstone 3, or Seabrook 1 will not substantially exceed these amounts.
For example, decommissioning cost estimates assume the availability of permanent
repositories for both low-level and high-level nuclear waste; those repositories
do not currently exist. The temporary low-level  repository located in Barnwell,
South  Carolina  may  become  unavailable,  which  could  increase  the  cost of
decommissioning  the Yankee Atomic,  Connecticut Yankee and Maine Yankee plants.
If any of the operating units were shut down prior to the end of their operating
licences,  which NEP believes is likely, the funds collected for decommissioning
to that point would be insufficient.  Under the Settlement  Agreements discussed
in Note C, NEP will recover decommissioning costs through CTCs.

Nuclear Insurance

The  Price-Andersen Act limits the amount of liability claims that would have to
be paid in the event of a single  incident  at a nuclear  plant to $9.7  billion
(based upon 108 licensed reactors). The maximum amount of commercially available
insurance  coverage  to pay such  claims is $200  million.  The  remaining  $9.5
billion  would be provided by an  assessment of up to $88.1 million per incident
levied on each of the participating nuclear units in the United States,  subject
to a maximum  assessment  of $10 million per  incident  per nuclear  unit in any
year.  The maximum  assessment,  which was most  recently  adjusted in 1998,  is
adjusted for  inflation  at least every five years.  NEP's  current  interest in
Vermont Yankee, Millstone 3, and Seabrook 1 would subject NEP to a $35.4 million
maximum  assessment per incident.  NEP's payment of any such assessment would be
limited to a maximum of $4.0 million per year. As a result of the permanent

                                      -33-

<PAGE>



cessation of power operation of the Yankee Atomic, Connecticut Yankee, and Maine
Yankee  plants,  these  units  have  received  from  the NRC an  exemption  from
participating  in the  secondary  financial  protection  system under the Price-
Anderson  Act.  However,  these plants must continue to maintain $100 million of
commercially available nuclear liability insurance coverage.

Each of the  nuclear  units in which NEP has either an  ownership  or  purchased
power  interest also carries  nuclear  property  insurance to cover the costs of
property damage, decontamination, and premature decommissioning resulting from a
nuclear incident.  These policies may require additional premium  assessments if
losses relating to nuclear incidents at units covered by this insurance occur in
a prior six-year period. NEP's maximum potential exposure for these assessments,
either directly or indirectly, is approximately $4.6 million with respect to the
current policy period.

5. Town of Norwood dispute

In September  l998, the United States  District Court  (District  Court) for the
District of Massachusetts  dismissed the lawsuit filed in April 1997 by the Town
of Norwood,  Massachusetts  against NEES and NEP. NEP had been a wholesale power
supplier  for Norwood  pursuant to rates  approved by the FERC.  In the lawsuit,
Norwood had alleged that NEP's  divestiture of its power generating assets would
violate  the terms of a 1983  power  contract.  Norwood  also  alleged  that the
divestiture  and  recovery  of stranded  investment  costs  contravened  federal
antitrust  laws.  The District  Court judge  granted  NEES' and NEP's motion for
dismissal  on the grounds  that the  contract  did not require NEP to retain its
generating units, that the FERC-approved  filed rates govern these matters,  and
that Norwood had adequate  opportunity  at the FERC to litigate  these  matters.
Norwood  filed a motion  to alter or amend  the  order of  dismissal,  which was
denied.  In December 1998,  Norwood filed a second motion to amend judgement and
also filed an appeal with the First Circuit Court of Appeals (First Circuit).

In March 1998,  Norwood gave notice of its intent to terminate its contract with
NEP, without accepting responsibility for its share of NEP's stranded costs, and
began taking power from another supplier  commencing in April 1998. In May 1998,
the  FERC  ruled  that  NEP  could  assess  a CTC to any of  NEP's  unaffiliated
customers  that choose to  terminate  their  wholesale  power  contracts  early.
Norwood  claimed  that the CTC  approved  by the FERC did not apply to  Norwood;
however,  in denying  Norwood's  motion for  rehearing,  the FERC ruled that the
charge did apply to Norwood.  Norwood has  appealed  this  decision to the First
Circuit.  NEP's billings to Norwood for this charge  through  December 1998 have
been  approximately  $6 million,  which  remain  unpaid.  NEP filed a collection
action with the  Massachusetts  Superior Court in December 1998 to recover these
amounts. Norwood filed a motion to dismiss or stay in January 1999.

Norwood also  appealed  the FERC's  orders  approving  the  divestiture  and the
Massachusetts  and Rhode Island  industry  restructuring  settlement  agreements
(including  modification  of NEP's  contracts  with  Massachusetts  Electric and
Narragansett  Electric) to the First  Circuit,  despite the FERC's  finding that
those settlement agreements do not apply to Norwood.

The First  Circuit has  consolidated  all three of  Norwood's  appeals  from the
FERC's orders with two other  appeals  filed by the Northeast  Center for Social
Issue  Studies,  which  challenge  the  FERC's  approval  of  NEP's  sale of its
hydroelectric facilities. The case is to be fully briefed by May 1999.

Note F - Employee Benefits

1. Pension Plans

The NEES companies' retirement plans are non-contributory  defined-benefit plans
covering  substantially all employees.  The plans provide pension benefits based
on the employee's compensation during the five years prior to retirement. Absent
unusual circumstances,  the NEES companies' funding policy is to contribute each
year the net periodic pension cost for that year. However,  the contribution for
any year will not be less than the minimum contribution  required by federal law
or greater than the maximum tax deductible amount.


                                      -34-

<PAGE>



The plans' funded status at 31 December, 1998 and 1997 were calculated using the
assumed  rates  from 1999 and 1998,  respectively,  and the 1983  Group  Annuity
Mortality table.

Plan assets are composed  primarily of corporate  equity,  debt securities,  and
cash equivalents.

In addition to its regular pension funds shown in the table below,  NEES and its
subsidiaries have a separate trust fund,  commonly referred to as a Rabbi Trust,
for certain supplemental  pensions and deferred  compensation for key executives
and  employees.  The Rabbi  Trust is  currently  invested  in  municipal  bonds,
equities, and NEES common shares. At 31 December, 1998 and 1997, the Rabbi Trust
held 184,233 and 148,875 NEES common shares,  respectively,  which are accounted
for as treasury stock. At the end of 1998 and 1997, the difference  between cost
and the market value of investments,  other than NEES shares, in the Rabbi Trust
was  approximately  $10.1  million,  after  tax,  and $4.8  million,  after tax,
respectively.   These  amounts   represent   unrealised  gains  in  Rabbi  Trust
investments.  The market value of such external  investments was $64 million and
$53 million at 31 December, 1998 and 1997, respectively.

2. Post-retirement Benefit Plans Other than Pensions (PBOPs)

The  NEES  subsidiaries  provide  health  care and life  insurance  coverage  to
eligible  retired  employees.  Eligibility is based on certain age and length of
service  requirements  and in some cases retirees must contribute to the cost of
their coverage.

The plans' funded status at 31 December, 1998 and 1997 were calculated using the
assumed rates in effect for 1999 and 1998, respectively.

The assumptions used in the health care cost trends have a significant effect on
the amounts  reported.  A one percentage point change in the assumed rates would
increase the  accumulated  post-retirement  benefit  obligation  (APBO) as of 31
December,   1998  by   approximately   $43  million  or  decrease  the  APBO  by
approximately  $39  million  and  change  the  net  periodic  cost  for  1998 by
approximately $4 million.

The NEES subsidiaries fund the annual tax-deductible contributions.  Plan assets
are invested in equity and debt securities and cash equivalents.



                                      -35-

<PAGE>



Net pension cost and total cost of PBOPs for 1998,  1997,  and 1996 included the
following components:

<TABLE>
<CAPTION>

                                                   Pensions                    Post-retirement Benefits Other than
                                                                                            Pensions
Year ended 31 December ($
thousand)                                    1998          1997           1996           1998          1997           1996
<S>                                      <C>           <C>            <C>             <C>           <C>            <C>

Service cost - benefits earned
during the period                        $ 14,903      $ 15,019       $ 14,918        $ 6,397       $ 6,527        $ 6,794
Plus (less):
 Interest cost on projected benefit
 obligation                                55,210        52,497         51,461         23,611        24,249         24,667
 Return on plan assets at expected
 long-term rate                          (60,235)      (55,606)       (52,085)       (18,916)      (16,397)       (12,958)
 Amortisation of transition
 obligation                                 (788)         (766)          (766)         16,897        18,397         18,397
 Amortisation of prior service
 cost                                       1,109         1,629          1,624             57            61             61
 Amortisation of net (gain)/loss            1,889           717          2,029        (7,843)       (7,348)        (5,359)
 Curtailment (gain)/loss                  (9,300)            --             --         56,124            --             --
                                         --------      --------       --------       --------       -------        -------
Benefit cost                              $ 2,788      $ 13,490       $ 17,181       $ 76,327      $ 25,489       $ 31,602
                                         ========      ========       ========       ========       =======        =======
Special termination benefits
not included above                       $ 63,980           $--            $--        $ 4,335           $--            $--
                                         ========      ========       ========       ========       =======        =======

</TABLE>


The following table sets forth benefits earned and the plans' funded status:

<TABLE>
<CAPTION>

                                                                       Pensions                Post-retirement
                                                                                             Benefits Other than
                                                                                                   Pensions

At 31 December ($ million)                                             1998           1997          1998           1997

<S>                                                                   <C>            <C>           <C>            <C>


Benefit obligation                                                    $ 843          $ 819         $ 365          $ 348
Unrecognised prior service costs                                        (6)            (8)           (1)            (1)
Transition liability not yet recognised (amortised)                     (2)            (4)         (194)          (276)
Additional minimum liability                                              7              4            --             --
                                                                      -----          -----         -----          -----
                                                                        842            811           170             71
                                                                      -----          -----         -----          -----
Plan assets at fair value                                               837            834           258            239
Transition asset not yet recognised (amortised)                         (6)            (8)            --             --
Net (gain) not yet recognised (amortised)                              (92)           (52)         (151)          (153)
                                                                      -----          -----         -----          -----
                                                                        739            774           107             86
                                                                      -----          -----         -----          -----
Accrued pension/(prepaid) payments recorded
on books                                                              $ 103           $ 37          $ 63         $ (15)
                                                                      =====          =====         =====          =====

</TABLE>

                                      -36-

<PAGE>



The following provides a reconciliation of benefit obligations and plan assets:

<TABLE>
<CAPTION>


                                                                   Pension Benefits            Post-retirement
                                                                                             Benefits Other than
                                                                                                   Pensions

($ million)                                                            1998           1997          1998           1997
<S>                                                                   <C>            <C>           <C>            <C>

Changes in benefit obligation
Benefit obligation at 1 January                                       $ 819          $ 807         $ 348          $ 369
Service cost                                                             14             15             6              7
Interest cost                                                            55             53            24             24
Actuarial (gain)/loss                                                   (5)             59             8           (38)
Benefits paid from plan assets                                         (94)           (47)          (16)           (14)
Special termination benefits                                             64             --             4             --
Curtailment                                                            (11)             --           (9)             --
Plan amendments                                                           1             --            --             --
Dispositions (Yankee Atomic)                                             --           (68)            --             --
                                                                      -----          -----         -----          -----
Benefit obligation at 31 December                                     $ 843          $ 819         $ 365          $ 348
                                                                      =====          =====         =====          =====

Reconciliation of change in plan assets
Fair value of plan assets at 1 January                                $ 834          $ 812         $ 239          $ 202
Actual return on plan assets during year                                 93            130            33             38
Company contributions                                                     4              8             2             13
Benefits paid from plan assets                                         (94)           (47)          (16)           (14)
Dispositions (Yankee Atomic)                                             --           (69)            --             --
                                                                      -----          -----         -----          -----
Fair value of plan assets at 31 December                              $ 837          $ 834         $ 258          $ 239
                                                                      =====          =====         =====          =====
</TABLE>

Pension  plans  with  benefit  obligations  in excess of the fair  value of plan
assets had aggregate benefit obligations of $66 million and $62 million and plan
assets  with  a  fair  value  of $0  and  $0  at 31  December,  1998  and  1997,
respectively. All PBOP plans for 1998 and 1997 had aggregate benefit obligations
in excess of the fair value of plan assets,  the amounts of which are  disclosed
in the table above.

<TABLE>
<CAPTION>

Year ended 31 December                                                1999          1998          1997          1996
<S>                                                                  <C>           <C>           <C>           <C>

Assumptions used to determine pension cost:
Discount rate                                                        6.75%         6.75%         7.25%         7.25%
Average rate of increase in future compensation levels               4.13%         4.13%         4.13%         4.13%
Expected long-term rate of return on assets                          8.50%         8.50%         8.50%         8.50%
Assumptions used to determine post-retirement benefit cost:
Discount rate                                                        6.75%         6.75%         7.25%         7.25%
Expected long-term rate of return on assets                          8.25%         8.25%         8.25%         8.25%
Health care cost rate - 1996 to 1999                                 5.25%         5.25%         8.00%         8.00%
Health care cost rate - 2000 to 2004                                 5.25%         5.25%         6.25%         6.25%
Health care cost rate - 2005 and beyond                              5.25%         5.25%         5.25%         5.25%

</TABLE>


3. Early retirement and special severance programmes

In  1998,  NEES  subsidiary  companies  offered  a  voluntary  early  retirement
programme  to all  employees  who were at  least  55 years  old with 10 years of
service.  This programme was part of an  organisational  review with the goal of
streamlining  operations  and reducing the work force to reflect the sale of the
non-nuclear  generating business. The early retirement offer was accepted by 758
employees. A special severance programme was also utilised in 1998 for employees
affected by the organisational restructuring,  but who were not eligible for, or
did not accept, the early

                                      -37-

<PAGE>



retirement  offer.  The cost of these programmes was in part reimbursed by USGen
at the closing of the sale of the  non-nuclear  generating  business and will be
recovered in part from customers as a component of stranded cost recovery.

4. Stock-based compensation

At 31 December, 1998, NEES has three stock-based compensation plans and measures
its compensation cost for those plans using the method of accounting  prescribed
by Accounting  Principles  Board Opinion No. 25,  Accounting for Stock Issued to
Employees,  and related  interpretations.  The compensation cost charged against
income for these plans was $6.1  million,  $3.3  million,  and $3.7  million for
1998,  1997,  and 1996,  respectively.  If  compensation  cost for stock-  based
compensation  had been  accounted  for under  Statement of Financial  Accounting
Standards No. 123,  Accounting for  Stock-Based  Compensation,  the cost figures
shown above would have been decreased, before taxes, by approximately $1 million
and  $300,000 in 1998 and 1997,  respectively,  and had no impact on earnings in
1996.  These changes would have  increased  earnings per average  diluted common
share by $0.01 in 1998,  and had no  impact  on  earnings  per share in 1997 and
1996.

Note G - Income Taxes

Total income taxes in the statements of consolidated income are as follows:



Year ended 31 December ($ thousand)          1998           1997           1996
Income taxes charged to operations      $ 122,354      $ 152,024      $ 139,199
Income taxes charged to "Other income"   (18,936)        (7,268)        (3,018)
                                        --------       ---------      ---------
Total income taxes                      $ 103,418      $ 144,756      $ 136,181
                                        ========       =========      =========

Total income taxes, as shown above, consist of the following components:


Year ended 31 December ($ thousand)         1998           1997           1996
Current income taxes                   $ 376,866      $ 175,934      $ 166,509
Deferred income taxes                  (248,722)       (29,260)       (28,652)
Investment tax credits, net             (24,726)        (1,918)        (1,676)
                                        --------       ---------      ---------
Total income taxes                     $ 103,418      $ 144,756      $ 136,181
                                        ========       =========      =========

Total income taxes, as shown above,  consist of federal and state  components as
follows:


Year ended 31 December ($ thousand)         1998           1997           1996
Federal income taxes                    $ 81,963      $ 118,317      $ 111,573
State income taxes                        21,455         26,439         24,608
                                        --------       ---------      ---------
Total income taxes                     $ 103,418      $ 144,756      $ 136,181
                                        ========       =========      =========

Investment tax credits (ITC) of subsidiaries are deferred and amortised over the
estimated lives of the property giving rise to the credits.  Although investment
tax credits were generally  eliminated by the 1986 tax  legislation,  additional
carry-forward amounts continue to be recognised. The increase in amortisation of
ITC in 1998 results from the  recognition in income of unamortised  ITC relating
to the generating assets divested during 1998.

With  regulatory   approval,   the  subsidiaries   have  adopted   comprehensive
inter-period tax allocation (normalisation) for temporary book/tax differences.


                                      -38-

<PAGE>



Total  income  taxes  differ from the amounts  computed by applying  the federal
statutory tax rates to income before taxes.  The reasons for the differences are
as follows:

<TABLE>
<CAPTION>



Year ended 31 December ($ thousand)                                                 1998           1997           1996
<S>                                                                            <C>            <C>            <C> 

Computed tax at statutory rate                                                 $ 103,920      $ 131,989      $ 123,053
Increases (reductions) in tax resulting from:
 Amortisation of investment tax credits, net                                    (18,682)        (4,469)        (4,347)
 State income tax, net of federal income tax benefit                              13,946         17,185         15,995
All other differences                                                              4,234             51          1,480
                                                                               ---------      ---------      ---------
  Total income taxes                                                           $ 103,418      $ 144,756      $ 136,181
                                                                               =========      =========      =========
</TABLE>



The following  table  identifies the major  components of total deferred  income
taxes:


At 31 December ($ million)               1998          1997
Deferred tax asset:
 Plant related                           $ 88          $ 99
 Investment tax credits                    28            39
 All other                                118           152
                                      -------     ---------
                                        $ 234         $ 290
Deferred tax liability:
 Plant related                        $ (384)       $ (821)
 Equity AFDC                             (38)          (51)
 All other                              (284)         (138)
                                      -------     ---------
                                      $ (706)     $ (1,010)
                                      -------     ---------
 Net deferred tax liability           $ (472)       $ (720)
                                      =======     =========

There were no valuation allowances for deferred tax assets deemed necessary.

Federal income tax returns for NEES and its subsidiaries  have been examined and
reported on by the Internal Revenue Service through 1993.

Note H - Short-Term Borrowings and Other Current Liabilities

At 31 December, 1998, NEES and its consolidated subsidiaries had lines of credit
and standby bond purchase  facilities  with banks totalling  approximately  $900
million. These lines and facilities were used at 31 December, 1998 for liquidity
support for $372 million of NEP bonds in tax-exempt  commercial  paper mode (see
Note I).  Fees are paid on the  lines  and  facilities  in lieu of  compensating
balances.



                                      -39-

<PAGE>



The components of other current liabilities are as follows:


At 31 December ($ thousand)               1998          1997
Accrued wages and benefits            $ 23,875      $ 58,281
Rate adjustment mechanisms              79,952        27,152
Customer deposits                       10,999        11,059
Other                                   28,149        23,510
                                     ---------     ---------
                                     $ 142,975     $ 120,002
                                     =========     =========

Note I - Long-Term Debt

Substantially  all of the properties of Massachusetts  Electric and Narragansett
Electric  are subject to the lien of mortgage  indentures  under which  mortgage
bonds have been issued.

The aggregate payments to retire maturing long-term debt are as follows:

<TABLE>
<CAPTION>

($ thousand)                 1999           2000           2001          2002           2003
<S>                      <C>            <C>            <C>           <C>            <C>

Maturing long-term debt  $ 24,480       $ 37,485        $ 6,495      $ 41,500       $ 54,010
Mandatory prepayments      11,827         11,825         11,095        10,593         10,510
                         --------       --------       --------      --------       --------
 Total                   $ 36,307       $ 49,310       $ 17,590      $ 52,093       $ 64,520
                         ========       ========       ========      ========       ========
</TABLE>


At 31 December,  1998,  interest  rates on NEP's variable rate bonds ranged from
3.05 per cent. to 3.45 per cent.

At 31 December, 1998, the NEES subsidiaries' long-term debt had a carrying value
of   approximately   $1,095,000,000   and  a   fair   value   of   approximately
$1,177,000,000.  The fair value of debt that reprices frequently at market rates
approximates  carrying  value.  The fair market value of the NEES  subsidiaries'
long-term debt was estimated based on the quoted prices for similar issues or on
the current rates offered to the NEES  companies for debt of the same  remaining
maturity.

In order to satisfy  certain  terms of its mortgage  indenture,  NEP defeased or
retired all $641 million of its mortgage  bonds  outstanding  at the time of the
sale of its  non-nuclear  generating  business.  NEP  retired  $372  million  of
mortgage  bonds  securing  the  issuance of a like amount of  pollution  control
revenue bonds  (PCRBs),  leaving the underlying  PCRBs  outstanding as unsecured
obligations  of NEP.  Pursuant to a tender offer,  NEP purchased $183 million of
bonds.  Provisions for the payment of the remaining  mortgage bonds were made by
depositing with trustees  approximately $97 million of U.S. treasury obligations
sufficient  to pay  principal,  interest,  and premium,  as  applicable,  to the
maturity  date, or to the first date on which the bonds could be redeemed.  Both
the U.S.  treasury  obligations and defeased bonds were removed from the balance
sheet effective 30 September, 1998.



                                      -40-

<PAGE>



Note J - Supplementary Quarterly Financial Information (unaudited)

<TABLE>
<CAPTION>


1998 Quarter ended                                                31 March         30 June              30              31
                                                                                                 September        December

<S>                                                              <C>             <C>             <C>             <C>

 ($ thousand, except per share amounts)
Operating revenue                                                $ 619,563       $ 572,008       $ 630,558       $ 598,404
Operating income                                                  $ 87,146        $ 67,150        $ 92,264        $ 62,279
Net income                                                        $ 56,878        $ 34,409        $ 66,193        $ 32,562
Net income per average common share, basic                          $ 0.88          $ 0.55          $ 1.06          $ 0.56
Net income per average common share, diluted                        $ 0.88          $ 0.54          $ 1.07          $ 0.55
                                                                 =========       =========       =========       =========


1997 Quarter ended                                                31 March         30 June              30              31
                                                                                                 September        December
 ($ thousand, except per share amounts)
Operating revenue                                                $ 638,146       $ 577,625       $ 628,606       $ 658,214
Operating income                                                  $ 94,962        $ 66,583       $ 104,524       $ 100,792
Net income                                                        $ 61,820        $ 32,232        $ 67,746        $ 58,240
Net income per average common share, basic and
diluted                                                             $ 0.95          $ 0.50          $ 1.04          $ 0.90
                                                                 =========       =========       =========       =========

</TABLE>


3.   Summary of differences from the accounting  policies of National Grid under
     UK GAAP

The main  differences  between the accounting  policies adopted by NEES under US
GAAP and those  adopted  by  National  Grid under UK GAAP,  which  impact on net
income and common share  equity,  relate to the  accounting  for pension  costs,
deferred taxation and the allowance for equity funds used during construction.

(a) Pension costs

Under US GAAP,  the  actuarial  methods,  assumptions  and methods of amortising
surpluses and deficits differ from those used by National Grid under UK GAAP.

(b) Deferred taxation

Under US GAAP,  deferred  taxation is provided on a full liability  basis on all
temporary  differences.  Under UK  GAAP,  provision  for  deferred  taxation  is
generally only made for timing  differences which are expected to reverse in the
foreseeable  future. The material  adjustment in 1996 relates principally to the
recognised crystallisation of deferred tax liabilities in respect of fossil-fuel
and hydro-electric  generation assets, following the decision to divest of these
assets.

(c) Allowance for equity funds used during construction

Under US GAAP, the estimated  cost of equity funds used to finance  construction
of fixed assets is  recognised  in other income as an allowance for equity funds
used during the course of  construction  and  capitalised  in fixed assets.  The
capitalised  allowance for equity funds used during  construction is depreciated
over the course of the estimated  lives of the relevant  fixed assets.  Under UK
GAAP this accounting treatment is not permitted.

The following unaudited statements summarise the material estimated  adjustments
which  reconcile  NEES' net income and common  share  equity from that  reported
under US GAAP to estimates of those which would have been reported in accordance
with the accounting policies of National Grid under UK GAAP.



                                      -41-

<PAGE>



Net income


Year ended 31 December ($ million)          1998          1997           1996
Net income as reported                     $ 190         $ 220          $ 209
                                         -------       -------        -------

Adjustments for:
Pension costs                                (2)             5              8
Deferred taxation                             --            --          (160)
Allowance for equity funds used
during construction (net of depreciation)      4             4              4
                                         -------       -------        -------
Total adjustments                              2             9          (148)
                                         -------       -------        -------
Net income as adjusted                     $ 192         $ 229           $ 61
                                         =======       =======        =======
Common share equity

At 31 December ($ million)                  1998          1997           1996
Common share equity as reported          $ 1,570       $ 1,744        $ 1,685


Adjustments for:
Pension costs                                 18            20             15
Deferred taxation                            350           350            350
Allowance for equity funds used during
construction (net of depreciation)         (111)         (115)          (119)
Total adjustments                            257           255            246
                                         -------       -------        -------
Common share equity as adjusted          $ 1,827       $ 1,999        $ 1,931
                                         =======       =======        =======


                                      -42-

<PAGE>



The following is a copy of a letter received from PricewaterhouseCoopers:

The Directors
The National Grid Group plc
National Grid House
Kirby Corner Road
COVENTRY CV4 8JY

N M Rothschild & Sons Limited
New Court
St Swithin's Lane
LONDON EC4P 4DU

Kleinwort Benson Limited
PO Box 560
20 Fenchurch Street
LONDON EC3P 3DB

31 March, 1999

Dear Sirs

The National Grid Group plc ("NGG")

We report on the unaudited  restatements under United Kingdom Generally Accepted
Accounting Principles ("UK GAAP"), as applied in the financial statements of NGG
(the "UK GAAP restatements"),  of the consolidated net income of the New England
Electric System ("NEES") for each of the years ended 31 December, 1996, 1997 and
1998,  and of the common  share equity as at those dates  prepared  under United
States Generally Accepted  Accounting  Principles ("US GAAP"), as applied in the
financial  statements of NEES. The UK GAAP  restatements are set out in Part III
of the Circular issued by NGG dated 31 March, 1999.

Responsibilities

It is the  responsibility  solely of the Directors of NGG to prepare the UK GAAP
restatements  in  accordance  with  paragraph  12.11 of the Listing Rules of the
London Stock Exchange (the "Listing Rules"). It is our responsibility to form an
opinion,  as required by the Listing Rules, on the UK GAAP  restatements  and to
report our opinion to you.

The UK GAAP restatements  incorporate  significant adjustments to the historical
consolidated financial statements of NEES. The historical consolidated financial
statements  of NEES for each of the years ended 31 December,  1996 and 1997 were
prepared  under US GAAP and were  audited  by  Coopers  &  Lybrand  LLP who gave
unqualified  reports  thereon.  Those for the year ended 31 December,  1998 were
audited by PricewaterhouseCoopers LLP who gave an unqualified report thereon. We
do not take any responsibility for any of the historical  consolidated financial
statements of NEES.

Basis of opinion

We conducted our work in accordance  with the Statements of Investment  Circular
Reporting  Standards  issued by the Auditing  Practices  Board.  Our work, which
involved no  independent  examination  of any  historical  underlying  financial
information,  consisted  primarily of making enquiries of management of NEES and
its  auditors to establish  the  accounting  policies  which were applied in the
preparation of the historical underlying financial information.

We have  considered the evidence  supporting the UK GAAP  restatements  and have
discussed the UK GAAP restatements with the Directors of NGG.

                                      -43-

<PAGE>



Opinion

In our opinion the  adjustments  made are those  appropriate  for the purpose of
presenting  the  consolidated  net income of NEES for each of the years ended 31
December 1996, 1997 and 1998, and its common share equity as at those dates on a
basis  consistent  in all  material  respects  with UK GAAP  and the  accounting
policies of NGG, and the UK GAAP restatements have been properly compiled on the
bases stated.

Yours faithfully

PricewaterhouseCoopers



                                      -44-

<PAGE>



4.       NEES' press release of 1 February, 1999

The  following  is the full text of NEES'  press  release  of 1  February,  1999
announcing the proposed merger of NEES and EUA:

               "NEES AND EUA TO MERGE IN $634-MILLION TRANSACTION

              Industry Restructuring-Driven Consolidation Continues

WESTBOROUGH,  Mass.,  Feb. 1, 1999 - In the latest  consolidation  driven by the
restructuring of the region's electricity industry,  New England Electric System
(NYSE:NES) and Eastern Utilities Associates (NYSE:EUA) announced today that they
have signed a merger  agreement  under which NEES will  acquire all  outstanding
shares  of EUA for $31 per  share in cash,  subject  to  upward  adjustment,  as
described later.

The merger agreement values the equity of EUA at approximately  $634 million and
represents a 23% premium above the price of EUA shares on Dec. 4, 1998 (the last
trading day before other  regional  merger  announcements  affected  EUA's share
price), and a 5% premium above the closing price on Jan. 29, 1999.

NEES is New  England's  second  largest  electric  utility,  serving 1.3 million
customers  through its  regulated  electric  companies in  Massachusetts,  Rhode
Island and New Hampshire.  The company  announced on Dec. 14, 1998, that it will
merge with National Grid Group plc, the world's largest independent transmission
company,  which is based in Coventry,  England.  Upon completion of that merger,
NEES will become a wholly owned subsidiary of National Grid.

The  NEES/EUA  merger  is not  contingent  upon the  NEES/National  Grid  merger
closing,  but has the full support of National  Grid,  according to Rick Sergel,
president and chief executive officer of NEES.

EUA is a Boston-based public utility holding company whose subsidiaries  include
electric transmission and distribution  utilities in southeastern  Massachusetts
and northern and south coastal Rhode Island.  These utilities  provide  electric
service to approximately 300,000 customers.

Upon completion of the merger,  EUA's operations will be merged into NEES's. The
combined company will serve 1.6 million electricity customers in 228 New England
communities.  The new  company  will serve more  electricity  customers  in both
Massachusetts and Rhode Island than any other company.

NEES  and EUA  consistently  have  been  the  two  lowest-cost,  major  electric
companies in the region.  It is expected  that the  geographical  fit of the two
companies will result in even greater efficiencies. The companies expect to file
a rate plan with state regulators in the near future, which will maintain NEES's
low rates, and bring EUA's rates to NEES levels in the future.

"This merger of New England's two most  cost-conscious  electric  companies is a
natural fit in  philosophy,  geography  and corporate  structure,"  Sergel said.
"Furthermore,   it  is  the  first  step  in  fulfilling   the  promise  of  the
NEES/National Grid merger."

"EUA and NEES share a long  history of  providing  customers  with  high-quality
service at low rates.  The synergies  between the two  companies  will create an
even  stronger  company for our  customers,"  EUA Chairman  and Chief  Executive
Officer Donald G. Pardus said. "Equally  important,  NEES and EUA customers will
continue to receive the same great service from the same people."

Sergel will be president  and chief  executive  officer of the combined  company
upon completion of the merger. Both Pardus and EUA President and Chief Operating
Officer John R. Stevens have opted to retire upon the merger's  completion.  EUA
board members will be offered  positions on the NEES Advisory Board,  and Pardus
and Sergel will appoint a  transition  team  representing  both  companies.  EUA
Executive Vice President Robert G. Powderly will become

                                      -45-

<PAGE>



president of New England Power Service Company,  NEES's subsidiary that provides
administrative and support services to the other subsidiaries.

"These are the logical  steps to take to ensure a smooth  transition  as EUA and
NEES mesh into a larger,  even more efficient,  finely tuned operation,"  Pardus
said.

The combined company will have  approximately 250 fewer positions.  "Our goal is
to attain this through  voluntary early retirement and attrition,"  Sergel said.
NEES will honor EUA's labor contracts.

The merger is subject to  regulatory  approvals by the  Securities  and Exchange
Commission, Federal Energy Regulatory Commission, Nuclear Regulatory Commission,
and the state  utility  commissions  in  Massachusetts  and Rhode  Island.  NEES
expects to submit all  principal  regulatory  filings,  related  both to EUA and
National  Grid,   this  month.   The  merger  also  requires   approval  by  EUA
shareholders. The merger is expected to be completed by early 2000.

EUA shareholders will receive a cash payment of $31 for each share held when the
merger is  completed.  The cash payment will be subject to an increase of $0.003
per share per day if the merger is not completed on or before the date following
six months after approval of the merger by EUA shareholders.

NEES will finance the  acquisition  in part with cash  received from the sale of
its generating business in September 1998.

EUA  shareholders  will  continue to receive  dividends at the current  level as
declared by the EUA Board of Trustees, until closing of the merger.

Merrill Lynch & Co., Inc.  served as financial  advisor and delivered a fairness
opinion to NEES, as did Salomon Smith Barney Inc. for EUA.

NEES is a public utility holding  company  headquartered  in Westborough,  Mass.
Massachusetts Electric Company serves 970,000 customers in 146 communities,  and
Nantucket  Electric  Company serves 10,000 customers on the island of Nantucket.
Narragansett  Electric  Company  serves  330,000  customers  in 27 Rhode  Island
communities,  and Granite State Electric  Company serves 36,000  customers in 21
New Hampshire communities. Information about NEES is available on the World Wide
Web at http://www.nees.com.

Unregulated NEES subsidiaries  include  AllEnergy,  an energy marketing company,
and  NEESCom,  a  telecommunications  company.  NEES  subsidiaries  employ 3,200
people.

EUA is a public utility holding company  headquartered in Boston,  Massachusetts
whose  shares  are  traded  on  the  New  York  and  Pacific  Stock   Exchanges.
Subsidiaries  include  Eastern Edison Co., which serves 184,000  customers in 22
communities;  Blackstone Valley Electric Co., which serves 85,000 customers in 7
communities;  and Newport  Electric  Corp.,  which serves 33,000  customers in 4
communities.  Unregulated  subsidiaries include EUA Cogenex Corp. Together,  the
regulated and  unregulated  companies  are known as the EUA System.  Information
about EUA is available on the World Wide Web at http://www.eua.com.

This news release may contain  statements that are "forward looking  statements"
under the federal  securities law.  Actual results could differ  materially from
those discussed,  and there can be no assurance that estimates of future results
can be achieved.  For a list of factors  that could  influence  results,  please
refer to the earnings  section of NEES' Form 10-Q for the period ended Sept. 30,
1998. The NEES/EUA merger is also subject to contingencies as discussed  herein.
The NEES/National  Grid merger is subject to the  contingencies  listed in NEES'
Form 8-K dated Dec. 11, 1998."



                                      -46-

<PAGE>



             PART IV STATEMENTS OF INDEBTEDNESS AND WORKING CAPITAL

1. Statement of indebtedness

Indebtedness

As at the close of business on 28 February, 1999, the consolidated loan capital,
borrowings  and  indebtedness  of  National  Grid  Group and NEES  Group were as
follows:

<TABLE>
<CAPTION>

                                             National              NEES             Total
                                           Grid Group             Group
                                      (pound) million   (pound) million   (pound) million
<S>                                           <C>                 <C>          <C>

Indebtedness
Amounts due within one year
Bank loans, overdrafts and temporary
 borrowings                                     158.2                --          158.2
Current portion of long term loans              150.0              29.2          179.2
Amounts due after more than one year
Repayable wholly within five years              551.7             117.1          668.8
Repayable after five years                    1,357.7             546.4        1,904.1
                                              -------             -----        -------
Total indebtedness                            2,217.6             692.7        2,910.3
                                              =======             =====        =======
Contingent liabilities
Outstanding guarantees                           41.8                --           41.8
                                              =======             =====        =======
</TABLE>

Notes:

1.  The  total  column  included  in  the  above  table  presents  the  combined
indebtedness of the two groups as if the  Acquisition had taken place,  but does
not include indebtedness in respect of the Acquisition.

2.  There  has  been  no  material  change  in the  indebtedness  or  contingent
liabilities of National Grid Group or NEES Group since 28 February, 1999.

3. Save for $670.8  million  (approximately (pound) 419.2  million)  of the NEES
Group total indebtedness which is secured,  all of the indebtedness in the above
table is unsecured and unguaranteed.

Foreign  currency  amounts have been  translated into sterling at exchange rates
prevailing on 28 February, 1999, including a rate of $1.60 to (pound) 1.00.

Save  as  disclosed  above,   and  apart  from  their   respective   intra-group
liabilities, neither National Grid Group nor NEES Group had outstanding as at 28
February,  1999, any loan capital issued,  or created but unissued,  term loans,
other  borrowings or  indebtedness  in the nature of borrowing,  including  bank
overdrafts and liabilities  under  acceptances  (other than normal trade bills),
acceptance  credits or hire purchase  commitments,  or obligations under finance
leases, mortgages, charges, guarantees or other contingent liabilities.

Cash

The consolidated cash balance of National Grid Group at the close of business on
28 February,  1999 was  (pound) 1,537.6 million.  The consolidated  cash balance
(including  marketable  securities) of NEES Group at the close of business on 28
February, 1999 was $178.1 million (approximately (pound) 111.3 million).


                                      -47-

<PAGE>



2. Working capital

National Grid is of the opinion that, having regard to bank and other facilities
available  to  National  Grid  Group,  National  Grid Group as  enlarged  by the
Acquisition has sufficient  working capital for its present  requirements,  that
is, for at least the next twelve months from the date of this document.


                                      -48-

<PAGE>



                    PART V SUMMARY OF THE PRINCIPAL TERMS AND
                       CONDITIONS OF THE MERGER AGREEMENT

1.       Introduction

The Merger  Agreement sets out the conditions to the closing of the Acquisition.
It  also  contains  certain  termination  rights,  mutual   representations  and
warranties  and various  covenants  relating to the operation of the business of
NEES in the period prior to Completion,  including certain  limitations on NEES'
operations until Completion.

The Merger  Agreement  requires  National Grid and NEES to close the Acquisition
unless any one of the conditions to Completion is not satisfied or waived by the
date nine months after the  approval of the  Acquisition  by NEES  Shareholders.
This date may be  extended by six months by either  party if the only  remaining
conditions to the closing are the receipt of certain regulatory  approvals.  The
termination date may be further extended by NEES for six months if National Grid
is unable to obtain  financing for the  Acquisition  at the time all  completion
conditions have been satisfied as a result of significant  material  disruptions
in the financial  markets.  The Merger  Agreement also provides for  termination
fees to be paid by one party to the other in certain specified circumstances.

2. Principal Conditions

The principal conditions to Completion include the receipt by both National Grid
and NEES of approval  of their  respective  shareholders  and receipt of certain
regulatory  approvals  and the  absence of any  governmental  order  prohibiting
Completion.  The principal  regulatory approvals required include approval by or
filings with the SEC under the Public Utility  Holding  Company Act of 1935, the
Federal Energy  Regulatory  Commission  under the Federal Power Act, the Nuclear
Regulatory Commission and approvals, consents or supports in the states in which
NEES operates or has  non-operating  interests.  The  Acquisition  also requires
clearance under US anti-trust laws.

3. Termination Rights

National Grid and NEES can jointly  agree to terminate  the Merger  Agreement at
any time.  In  addition,  either  party can  terminate  the Merger  Agreement if
Completion  does not take place  prior to the date nine  months from the date of
receipt of NEES Shareholder approval, as extended as described above, unless the
failure of  Completion  to take place is the result of the  terminating  party's
breach of its obligations under the Merger  Agreement.  The Merger Agreement may
also be terminated (i) by either party as a result of the material breach of the
Merger Agreement by the other party,  (ii) by either party if either party fails
to obtain the approval of its  shareholders,  (iii) by either party if the Board
of Directors of the other party withdraws its recommendation with respect to the
Acquisition, or (iv) by either party if a court of competent jurisdiction issues
an order preventing or prohibiting the Acquisition.

In addition to these termination  rights, the Merger Agreement may be terminated
by NEES if its Board of Directors determines, in certain circumstances, that its
fiduciary obligations require NEES to terminate the Merger Agreement as a result
of a more  favourable  acquisition  proposal  from a third party.  NEES may also
terminate   the  Merger   Agreement  if  National  Grid  fails  to  deliver  the
consideration  for the  Acquisition  when  all  conditions  to  National  Grid's
obligation to close have been satisfied or waived.

If the required approval of the SEC under the Public Utility Holding Company Act
of  1935 is not  received  by the  date  twelve  months  after  approval  of the
Acquisition  by NEES  Shareholders,  and National Grid certifies to NEES that it
reasonably  believes  that the SEC  will  not  issue an order on or prior to the
extended termination date, National Grid may terminate the Merger Agreement.

4. Effect of Termination in Certain Circumstances

NEES  is  required  to  make  a  payment  to  National  Grid  in the  amount  of
$100,000,000  plus  National  Grid's  documented  out-of-pocket  expenses  up to
$10,000,000  as National  Grid's  exclusive  remedy if the Merger  Agreement  is
terminated for any of the following reasons:

                                      -49-

<PAGE>



     NEES' Board of Directors  terminates  the Merger  Agreement  because it has
     determined  that  its  fiduciary   obligations  require  it  to  accept  an
     alternative acquisition proposal;

     National  Grid  terminates  the Merger  Agreement  because  NEES'  Board of
     Directors  withdraws  its  recommendation  for approval of the  Acquisition
     prior to obtaining NEES Shareholder approval of the Acquisition;

     National Grid  terminates the Merger  Agreement  because NEES  Shareholders
     fail to approve the Acquisition while an alternative  acquisition  proposal
     from a third  party  is  outstanding  and  NEES  enters  into a  definitive
     agreement for the alternative acquisition proposal within two years;

     National Grid terminates the Merger  Agreement  because NEES has materially
     breached a  representation,  warranty or  covenant of the Merger  Agreement
     while an alternative  proposal from a third party is  outstanding  and NEES
     enters into a definitive agreement for the alternative acquisition proposal
     within two years; and

     NEES terminates the Merger Agreement because Completion has not occurred by
     a date nine months after approval of the Acquisition by NEES  Shareholders,
     as extended  as  described  above,  and at the time of  termination  (i) an
     alternative acquisition proposal from a third party is outstanding and (ii)
     NEES enters into a definitive  agreement  for the  alternative  acquisition
     proposal within two years.

National  Grid  is  required  to  make  a  payment  to  NEES  in the  amount  of
$100,000,000,  plus, in the case of the withdrawal by the National Grid Board of
its   recommendation   for  approval  of  the   Acquisition,   NEES'  documented
out-of-pocket expenses up to $10,000,000 as NEES' exclusive remedy if the Merger
Agreement is terminated for any of the following reasons:

     The Board of National Grid withdraws its recommendation for approval of the
     Acquisition  prior to obtaining  National Grid Shareholder  approval of the
     Acquisition; and

     National Grid is unable to obtain financing for the Acquisition as a result
     of significant material disruptions in the financial markets.

National  Grid  will  pay  NEES a  termination  fee of  $75,000,000  plus  up to
$10,000,000  for documented  out-of-pocket  expenses if National Grid terminates
after the twelve month anniversary of NEES Shareholder approval because an order
from the SEC approving the  Acquisition  has not been issued,  and National Grid
reasonably  believes  that  the SEC will not  issue  an order on or  before  the
extended termination date.

National  Grid  will  pay  NEES  for  documented  out-of-pocket  expenses  up to
$10,000,000 if NEES terminates because of National Grid's (i) material breach of
its representations and warranties,  (ii) failure to perform and comply with its
convenants  under the Merger  Agreement or (iii) failure to obtain National Grid
Shareholder approval.



                                      -50-

<PAGE>



                         PART VI ADDITIONAL INFORMATION

1. Responsibility

The Directors,  whose names appear in paragraph 3.1 below, accept responsibility
for the information contained in this document. To the best of the knowledge and
belief of the Directors (who have taken all reasonable  care to ensure that such
is the case) the  information  contained in this document is in accordance  with
the  facts  and does not omit  anything  likely  to  affect  the  import of such
information.

2. Registered office

The  registered  and head office of the Company is  National  Grid House,  Kirby
Corner Road, Coventry CV4 8JY.

3. Directors of the Company and other interests

3.1 The names and  principal  functions  of the  Directors of the Company are as
follows:

David Jefferies CBE, FEng           (Chairman)
James Ross                          (Deputy Chairman)
David Jones                         (Group Chief Executive)
Stephen Box                         (Finance Director)
Wob Gerretsen                       (Business Development Director)
Dr. Roger Urwin                     (Managing Director, Transmission)
Bob Faircloth                       (Non-executive Director)
John Grant                          (Non-executive Director)
Richard Reynolds                    (Non-executive Director)
Malcolm Williamson                  (Non-executive Director)

     all of National Grid House, Kirby Corner Road, Coventry CV4 8JY.

3.2  As  at  25  March,  1999  (being  the  latest  practicable  date  prior  to
     publication  of this  document),  the  interests of the Directors and their
     immediate families and persons connected (within the meaning of Section 346
     of the Act) with such persons,  in the share capital of the Company (all of
     which,  unless  otherwise  stated,  are  beneficial)  which  (i) have  been
     notified to the Company pursuant to Sections 324 or 328 of the Act; or (ii)
     are required to be entered into the register  referred to in Section 325 of
     the Act; or (iii) are interests of a connected  person of a Director  which
     would, if the connected person were a Director, be required to be disclosed
     under (i) or (ii) above,  and the  existence of which is known to, or could
     with reasonable diligence be ascertained by, that person, were as follows:


<TABLE>
<CAPTION>

                                Number of     Percentage of       National          Exercise
Director                    National Grid   issued National    Grid Shares    Price/National
                                   Shares       Grid Shares   under option        Grid Share
<S>                               <C>                <C>           <C>               <C>


David Jefferies                   359,389            0.2444        355,457             64.6p
                                                                    36,771             90.2p
                                                                    26,352            118.9p
David Jones                        96,221            0.0065          6,678            146.0p
                                                                   230,837            280.5p
                                                                   146,906           375.75p
                                                                    28,166                 0
Stephen Box                         1,773            0.0001        160,427            280.5p
                                                                    93,147           375.75p
                                                                     2,955                 0
                                                                     3,125            312.0p




                                      -51-

<PAGE>




Wob Gerretsen                       8,387            0.0006         10,648            162.0p
                                                                   151,515            280.5p
                                                                    81,820           375.75p
                                                                    13,978                 0
Roger Urwin                       113,187            0.0077         10,648            162.0p
                                                                   169,340            280.5p
                                                                    91,656           375.75p
                                                                    20,106                 0
</TABLE>

*    total exercise price for all options granted to the person set out opposite
     is (pound) 1.00.

Each of David  Jones,  Stephen Box,  Wob  Gerretsen  and Roger Urwin is, for the
purposes  of the Act,  deemed to have an  interest in  6,993,439  National  Grid
Shares held by the National  Grid  Qualifying  Employee  Share  Ownership  Trust
(QUEST) as a potential beneficiary under the QUEST.

3.3  Save as disclosed in paragraph  3.2 above,  none of the  Directors  has any
     interest  in  the  share  or  loan  capital  of the  Company  or any of its
     subsidiaries  nor has the Company or any of its  subsidiaries  provided any
     guarantees for the benefit of the Directors as at 25 March, 1999.

3.4  Save as described in this paragraph,  none of the Directors has an existing
     or proposed service contract with any member of National Grid Group:

(a)  On 17 November,  1995, David Jones entered into a service agreement jointly
     with  NGC and the  Company  (for  the  purpose  of this  paragraph  3.4 the
     "Companies")  pursuant to which he is employed  as Chief  Executive.  David
     Jones receives a base salary of (pound) 300,000 (which is reviewed annually
     on 1 April) and has an annual bonus  opportunity under the Group Directors'
     Performance-Related Bonus Scheme. Long term incentives are provided through
     an executive  share option  scheme.  David Jones is provided with a car and
     receives  death-in-service life cover. David Jones is entitled to personal
     accident  insurance,  reimbursement  for all expenses properly incurred and
     private medical expenses.  The Companies  (subject to Inland Revenue limits
     from  time to time)  make  pension  contributions  under a  defined-benefit
     pension scheme.

     Pension  arrangements  for Directors  provide for them to retire at age 60,
     although they may, at the Companies' request, remain as directors until the
     Companies'  normal  retirement  age  (currently  63).  David Jones' service
     agreement  is  terminable  by him on 12 months'  written  notice and by the
     Companies on 12 months' written notice.

(b)  On 17  November,  1995,  Wob  Gerretsen  entered  into a service  agreement
     jointly  with the  Companies  pursuant  to which he is employed as Business
     Development  Director.  Wob  Gerretsen  receives  a base  salary of (pound)
     183,000  (which is reviewed  annually  on 1 April) and has an annual  bonus
     opportunity  under the Group Directors'  Performance-Related  Bonus Scheme.
     Long term incentives are provided through an executive share option scheme.
     Wob  Gerretsen is provided  with a car and receives  death-in-service  life
     cover.   Wob  Gerretsen  is  entitled  to  personal   accident   insurance,
     reimbursement  for all  expenses  properly  incurred  and  private  medical
     expenses.  The  Companies  (subject to Inland  Revenue  limits from time to
     time) make pension  contributions  under a defined-benefit  pension scheme.
     Because Wob Gerretsen is subject to a pensions  earnings cap, the Companies
     have put in place  pension  arrangements,  which are partially  funded,  to
     provide a pension  covering  the  difference  between  base  salary and the
     pensions cap.

     Pension  arrangements  for Directors  provide for them to retire at age 60,
     although they may, at the Companies' request, remain as directors until the
     Companies'  normal  retirement age (currently 63). Wob Gerretsen's  service
     agreement  is  terminable  by him on 12 months'  written  notice and by the
     Companies on 12 months' written notice.


                                      -52-

<PAGE>



(c)  On 17 November,  1995, Roger Urwin entered into a service agreement jointly
     with the Companies  pursuant to which he is employed as Managing  Director,
     Transmission.  Roger Urwin receives a base salary of (pound) 205,000 (which
     is reviewed  annually on 1 April) and has an annual bonus opportunity under
     the Group Directors' Performance-Related Bonus Scheme. Long term incentives
     are provided  through an  executive  share  option  scheme.  Roger Urwin is
     provided with a car and receives  death-in-service  life cover. Roger Urwin
     is entitled to personal accident insurance,  reimbursement for all expenses
     properly incurred and private medical expenses.  The Companies  (subject to
     Inland Revenue limits from time to time) make pension contributions under a
     defined-benefit pension scheme.

     Pension  arrangements  for Directors  provide for them to retire at age 60,
     although they may, at the Companies' request, remain as directors until the
     Companies'  normal  retirement  age (currently  63). Roger Urwin's  service
     agreement  is  terminable  by him on 12 months'  written  notice and by the
     Companies on 12 months' written notice.

(d)  On 4 August,  1997,  Stephen Box entered into a service  agreement  jointly
     with the  Companies  pursuant to which he is employed as Finance  Director.
     Stephen  Box  receives a base  salary of (pound) 200,000 (which is reviewed
     annually on 1 April) and has an annual  bonus  opportunity  under the Group
     Directors'  Performance-Related  Bonus  Scheme.  Long term  incentives  are
     provided through an executive share option scheme.  Stephen Box is provided
     with  a car  and  receives  death-in-service  life  cover.  Stephen  Box is
     entitled to personal  accident  insurance,  reimbursement  for all expenses
     properly incurred and private medical expenses.  The Companies  (subject to
     Inland Revenue limits from time to time) make pension contributions under a
     defined-benefit  pension  scheme.  Because  Stephen  Box  is  subject  to a
     pensions   earnings   cap,  the   Companies   have  put  in  place  pension
     arrangements, which are partially funded, to provide a pension covering the
     difference between base salary and the pensions cap.

     Pension  arrangements  for Directors  provide for them to retire at age 60,
     although they may, at the Companies' request, remain as directors until the
     Companies'  normal  retirement  age (currently  63).  Stephen Box's service
     agreement  is  terminable  by him on 12 months'  written  notice and by the
     Companies on not less than 12 months'  written notice  provided that notice
     shall not expire earlier than 3 August, 2000.

3.5  On Completion,  Rick Sergel will be appointed as an additional  director of
     National  Grid and will enter  into a service  agreement  with the  Company
     pursuant  to which he will be  employed as  President  and Chief  Executive
     Officer of NEES. Rick Sergel will receive no additional  salary for being a
     director of National Grid. His base salary as President and Chief Executive
     Officer of NEES will be not less than  $550,000  and he will have an annual
     bonus  opportunity  under  the NEES  annual  bonus  arrangement.  Long term
     incentives  will be provided under the National Grid Executive Share Option
     Scheme  including a grant, as soon as practicable  following the entry into
     the service agreement,  of an option to acquire the number of National Grid
     Shares such that the  aggregate  fair market  value of such  National  Grid
     Shares  equals  $1,650,000.  He  will  continue  to  participate  in  NEES'
     Executive Retirement Plan and in other welfare plans, retirement, incentive
     and fringe benefit plans on the same basis as other  executive  officers in
     NEES. The NEES Executive Retirement Plan does not mandate a retirement age.

     Rick Sergel's service  agreement will be for an initial fixed term of three
     years, subject to a one year notice period by the Company after the initial
     two year  period.  The  contract  may be  terminable  by him on six months'
     written notice at any time.

3.6  No Director has any interest in any transaction  which is or was unusual in
     its nature or  conditions or  significant  to the business of National Grid
     Group and which was  effected by any member of National  Grid Group  during
     the current or immediately  preceding  financial year or which was effected
     by any member of National Grid Group during any earlier  financial year and
     remains in any respect outstanding or unperformed.


                                      -53-

<PAGE>



3.7  In so far as is known to the  Company,  as at 25  March,  1999  (being  the
     latest  practicable  date  prior  to  publication  of this  document),  the
     following are interested in three per cent. or more of the Company's issued
     ordinary share capital:


Shareholder                                    Percentage of issued
                                               National Grid Shares
HSBC*                                                         11.60
Prudential Corporation plc                                     5.99

*    National Grid has been advised that as a result of a structured transaction
     with HSBC, the Olayan group has an economic  exposure to the performance of
     National Grid Shares.

Save as disclosed in this  paragraph  3.7,  the  Directors  are not aware of any
interest which as at 25 March, 1999,  represented three per cent. or more of the
issued ordinary share capital of the Company.

4.   Litigation

4.1  The Electricity  Supply Pension Scheme (ESPS) is an  industry-wide  pension
     scheme covering employees of the electricity  industry in England and Wales
     and is the principal pension  arrangement for employees of NGC. The ESPS is
     divided  into  sections,  each of which has its own trustees and is treated
     separately for the purposes of valuing its assets and  liabilities.  NGC is
     the sole participating employer in its section of the ESPS.

     In 1992, an independent  actuarial valuation of the NGC section of the ESPS
     showed that the NGC section was in surplus.  Having  received  legal advice
     that this  course of action  was  lawful,  NGC used part of the  surplus to
     suspend certain of its employer's contributions and to make up deficiencies
     in  the  funding  of  pension   entitlements  of  employees   taking  early
     retirement.  The  remainder  of the surplus  was used to increase  widows',
     widowers' and dependants' benefits.

     No money was  removed at any time from the NGC  section of the ESPS,  which
     has been and continues to be in substantial surplus.

     On 7 February,  1997, the Pensions Ombudsman published his determination on
     a complaint made by two pensioners concerning the use of the surplus in the
     NGC section. The determination  required NGC to pay to the NGC section with
     interest  the  contributions  unpaid  during the  period  from late 1992 to
     February 1995.

     On  10  June,   1997,   NGC's  appeal  against  the  Pensions   Ombudsman's
     determination  was  upheld  by the High  Court,  whereupon  the  pensioners
     appealed against the High Court's decision.

     Judgment on the pensioners'  appeals was handed down by the Court of Appeal
     on 10 February,  1999. The judgment  confirmed that the members of the ESPS
     have no property  rights in any surplus  which is revealed by an  actuarial
     valuation and that, where such a surplus is revealed,  the ESPS permits the
     use of the  surplus  for the  employer's  benefit.  However,  the  judgment
     concluded that NGC had not been entitled unilaterally to cancel any accrued
     liabilities.

     The Court of Appeal's  judgment did not determine whether or not NGC should
     be required to pay any amount to the NGC section or whether a retrospective
     amendment to be made now could validly cancel any accrued  liabilities owed
     by NGC. A further  hearing will be held with a view to resolving  these and
     related  issues,  but is unlikely to take place before  mid-April 1999. NGC
     has  received  legal  advice to the effect that its  liability,  if any, is
     unlikely   to  exceed   (pound) 7.8  million   (representing   its   unpaid
     contributions  between late December 1992 and 27 May, 1993, when the Scheme
     Actuary,  pursuant to the relevant  provisions of the ESPS,  certified that
     NGC's  arrangements  to deal with the 1992 surplus were  reasonable),  plus
     interest at a rate which is also an issue to be  determined  at the further
     hearing.


                                      -54-

<PAGE>



     In giving its judgment,  the Court of Appeal indicated that,  having regard
     to the significance of the issues,  it would be appropriate for the case to
     go to the House of Lords. When the outcome of the further hearing is known,
     each of the parties will be able to decide whether an appeal should be made
     to the House of Lords.

4.2  Save as  disclosed  in  paragraph  4.1,  the Company is not,  nor has been,
     involved  in,  nor are  there so far as the  Company  is aware  pending  or
     threatened  by or  against  it or any of its  subsidiaries,  any  legal  or
     arbitration  proceedings which may have, or have had during the previous 12
     months,  a significant  effect on the financial  position of the Company or
     any of its subsidiaries.

4.3  In September  1998,  the United States  District  Court for the District of
     Massachusetts  dismissed  the  lawsuit  filed in April  1997 by the Town of
     Norwood,  Massachusetts against NEES and its subsidiary,  New England Power
     Company  ("NEP").  NEP had been a  wholesale  power  supplier  for  Norwood
     pursuant  to rates  approved by the Federal  Energy  Regulatory  Commission
     ("FERC").  In the lawsuit,  Norwood  alleged that NEP's  divestiture of its
     power  generating  assets would violate the terms of a 1983 power contract.
     Norwood  also  alleged  that  the  divestiture  and  recovery  of  stranded
     investment costs  contravened  federal  anti-trust laws. The District Court
     granted  NEES' and NEP's  motion for  dismissal.  Norwood has  appealed the
     decision.

     Norwood is also appealing  three FERC rulings:  (i) that NEP could assess a
     contract  termination  charge to any of NEP's  unaffiliated  customers that
     choose to terminate their wholesale power contracts  early;  (ii) approving
     the  divestiture  of NEP's  generating  assets;  and  (iii)  approving  the
     Massachusetts   and  Rhode   Island   industry   restructuring   settlement
     agreements. These appeals have been consolidated and are pending before the
     First Circuit Court of Appeals.

     Since April 1998,  Norwood has not paid NEP billings  that NEP believes are
     due under its power  contract.  NEP has filed a lawsuit  against Norwood in
     the  Massachusetts  state  court to collect  these  charges  which total $6
     million up to 31 December, 1998.

4.4  Save as disclosed in paragraph 4.3, NEES is not, nor has been, involved in,
     nor are there so far as NEES is aware  pending or  threatened by or against
     it or any of its subsidiaries,  any legal or arbitration  proceedings which
     may have, or have had during the previous 12 months,  a significant  effect
     on the financial position of NEES or any of its subsidiaries.

5.   Material contracts

5.1  Save  for  the  contracts  described  below  and  contracts  available  for
     inspection  within the last two years,  no contracts  (not being  contracts
     entered into in the ordinary  course of business) have been entered into by
     any  member  of  National  Grid  Group  within  the two  years  immediately
     preceding the date of this document which are or may be material:

     (a)  the Merger Agreement, particulars of which are summarised in Part V of
          this document;

     (b)  two  agreements  each dated 10  December,  1998,  and made between (1)
          National Grid Brazil B.V. (a subsidiary of the Company) ("NG Brazil"),
          (2)  Nunemasia  Comercial  Ltda.  (a company  jointly  owned by France
          Telecom S.A.  and Sprint  Corporation)  ("Nunemasia")  and (3) Noresko
          Comercial  Ltda. (a company  jointly owned by NG Brazil and Nunemasia)
          (together the  "Consortium") whereby for a consideration of (pound) 25
          million, the Consortium (of which 50 per cent. is owned by the Company
          and 25 per cent.  is owned by each of France  Telecom  S.A. and Sprint
          Corporation),   has  been   awarded  a  40  year  licence  to  provide
          telecommunications     services,    including    inter-regional    and
          international services, in Brazil;

     (c)  an  agreement  dated  10  December,  1998,  and made  between  (1) the
          Company, (2) France Telecom S.A. and (3) Sprint Corporation whereby in
          respect of the Consortium, the Company has guaranteed

                                      -55-

<PAGE>



          the  obligations  of NG Brazil  and each of France  Telecom  S.A.  and
          Sprint  Corporation  has  severally   guaranteed  the  obligations  of
          Nunemasia;

     (d)  a Placing Agreement dated 22 January,  1999 (the "Placing Agreement"),
          and made between (1) the Company,  (2) NGG Telecoms Limited  ("NGGT"),
          (3) HSBC as Lead  Manager  and (4) the other  managers  named  therein
          (together with HSBC, the "Managers") whereby:

          (i)  the  Company,  as  agent  for  NGGT,  agreed  to sell  60,000,000
               ordinary  shares of 50p each in the capital of Energis (the "Sale
               Shares") to purchasers procured by the Managers;

          (ii) the  Company  agreed to pay the  Managers a combined  management,
               selling  and  underwriting  commission  of 3  per  cent.  of  the
               aggregate  sale price of the Sale Shares,  together with the fees
               and expenses of the Managers;

          (iii)certain  representations,  undertakings and warranties were given
               by the Company and NGGT in favour of the Managers and the Company
               and  NGGT  agreed  to  indemnify  the  Managers  against  certain
               liabilities; and

          (iv) undertakings  were given by the  Company and NGGT that they would
               not,  without the prior  consent of HSBC (such  consent not to be
               unreasonably  withheld),  either  offer  shares in Energis  for a
               period of six months  from the date of the Placing  Agreement  or
               authorise, or consent to, the issue or allotment of any shares in
               Energis (except to vote in favour of a resolution to increase the
               authorised  share capital of Energis or to grant the directors of
               Energis an authority to issue shares at an annual general meeting
               of  Energis)  for a  period  of six  months  from the date of the
               Placing Agreement; and

     (e)  an agreement  dated 5 March,  1999, and made between (1) National Grid
          (as guarantor and  borrower),  (2) NGC (as  borrower)  (together,  the
          "Borrowers"),   (3)  ABN  Amro  Bank  N.V.,  Barclays  Capital,  Chase
          Manhattan PLC, Deutsche Bank AG London,  Dresdner Kleinwort Benson and
          HSBC (as lead  arrangers),  (4) HSBC (as agent) and (5) certain  banks
          and financial  institutions  (the  "Banks")  (the "Credit  Agreement")
          whereby:

          (i)  a  $850,000,000  term loan  facility  has been made  available to
               National Grid and any of its wholly-owned UK subsidiaries,  other
               than NGC, and any other  nominated  subsidiary of National  Grid,
               other than NGC,  which is a party to, or  accedes  to, the Credit
               Agreement   and  is  approved  by  all  of  the  Banks  (each  an
               "Additional Borrower") ("Facility A");

          (ii) a $550,000,000  multi-currency revolving credit facility has been
               made  available  to  National  Grid and any  Additional  Borrower
               ("Facility B");

          (iii)a  $1,350,000,000  364 day  dollar-denominated  revolving  credit
               facility  has  been  made  available  to  National  Grid  and any
               Additional Borrower ("Facility C"); and

          (iv) a   (pound) 250,000,000  multi-currency   revolving   credit  and
               acceptance  credit  facility  has  been  made  available  to  NGC
               ("Facility D").

     Facility A is  available  for drawing  until two years from the date of the
     Credit  Agreement and is to be repaid in one instalment on the date falling
     five years from the date of the  Credit  Agreement.  It is to be used in or
     towards (1)  financing  or  refinancing  the proposed  acquisition  of EUA,
     together  with  acquisition  costs  and  other  fees and  expenses  and the
     refinancing  of  existing  borrowings  of the  EUA  group,  and (2) for the
     general corporate purposes of National Grid Group.


                                      -56-

<PAGE>



     Facility B is available for drawing on a revolving basis for  approximately
     five years from the date of the Credit Agreement.  It is to be used to meet
     the  general  corporate  purposes  of  National  Grid Group  including  the
     financing of acquisitions,  the refinancing of existing  borrowings and for
     general working capital.

     Facility C is  available  for drawing on a  revolving  basis until the date
     falling 364 days from the date of the Credit Agreement,  unless some or all
     of the Banks  agree to extend the  availability  period  for a further  364
     days, in which case the  availability  period for the portion of Facility C
     provided by such Banks shall be so extended.  National  Grid has a term-out
     option which allows it to convert its outstanding advances under Facility C
     to term loans and thereafter  repay all such term-out  advances by the date
     falling not later than three years after the date of the Credit  Agreement.
     Facility  C is to  be  used  towards  financing  the  Acquisition  and  for
     refinancing  existing  borrowings of NEES Group.  If the Acquisition is not
     completed  during the period in which  Facility C is available to be drawn,
     National Grid has the right to draw down the facility in full and place the
     proceeds in a segregated deposit account pending Completion.

     Facility D is available  for drawing  only by NGC on a revolving  basis for
     approximately five years from the date of the Credit Agreement. It is to be
     used to provide working capital and to meet the general corporate  purposes
     of NGC and its subsidiaries.

     The rate of interest  payable by the Borrowers and any Additional  Borrower
     is LIBOR together with margins of 57.5 basis points for Facilities A, B and
     C and 52.5 basis points for Facility D which  margins may be reduced  after
     Completion  upon  satisfaction of certain  conditions,  plus any associated
     regulatory costs. In addition, certain fees and expenses are payable by the
     Borrowers in  connection  with the Credit  Agreement  including  commitment
     fees, management fees and agency fees.

5.2  Save for the contracts  described  below, no contracts (not being contracts
     entered into in the ordinary  course of business) have been entered into by
     any member of NEES Group  within the two years  immediately  preceding  the
     date of this document which are or may be material:

     (a)  an Asset  Purchase  Agreement  dated 5 August,  1997,  as amended (the
          "Generating Asset Purchase Agreement"),  and made between (1) NEP, (2)
          The   Narragansett    Electric   Company,   a   subsidiary   of   NEES
          ("Narragansett"),  and  (3) US Gen  New  England,  Inc.,  an  indirect
          wholly-owned subsidiary of PG&E Corporation ("USGenNE"), whereby:

          (i)  USGenNE purchased, on 1 September, 1998, substantially all of the
               non-nuclear   generating   business  of  NEP  and   Narragansett,
               including  NEP's  interests in  purchased  power  contracts,  but
               excluding  NEP's  interest in the Wyman 4 generating  station and
               certain small diesel units in three locations;

          (ii) PG&E   Corporation   executed  a  guarantee,   guaranteeing   the
               performance by USGenNE of all of USGenNE's obligations (including
               the making of all required  payments) under the Generating  Asset
               Purchase  Agreement and the PPA Transfer Agreement referred to in
               paragraph (b) below;

          (iii)USGenNE  paid  $1.59  billion  to NEP  and  Narragansett  for the
               assets acquired under the Generating Asset Purchase Agreement. In
               addition,  USGenNE  reimbursed  the  relevant  NEES  subsidiaries
               approximately  $140  million  for  costs  associated  with  early
               retirements  and  special  severance   programmes  for  employees
               affected by industry restructuring, and the value of inventories;
               and

          (iv) USGenNE assumed most of the sellers'  obligations  related to the
               non-nuclear  generating  business,  including  responsibility for
               environmental   conditions   at  the  stations  that  were  sold,
               long-term  fuel and fuel  transportation  contracts,  and certain
               collective bargaining

                                      -57-

<PAGE>



               agreements.  The  Generating  Asset Purchase  Agreement  contains
               indemnification  provisions standard to agreements of this nature
               in the US;

     (b)  an Amended and Restated PPA Transfer Agreement dated as of 29 October,
          1997,  and  made  between  NEP  and (2)  USGenNE  (the  "PPA  Transfer
          Agreement");  and  the  OSP  PPA  Transfer  Agreement  dated  as of 29
          October,  1997, and made between (1) NEP and (2) USGenNE (the "OSP PPA
          Transfer Agreement"), whereby:

          (i)  pursuant to the Generating Asset Purchase Agreement summarised in
               paragraph  (a)  above,  NEP  committed  to  try to  assign  power
               purchase agreements covering approximately 1,100 MW of power (the
               "PPAs") to USGenNE prior to the closing of that disposal. The PPA
               Transfer  Agreement and the OSP PPA Transfer Agreement (which was
               assigned to  TransCanada  Power  Marketing  Ltd. on 1  September,
               1998) set forth the  obligations  of the parties  with respect to
               those PPAs that were not able to be assigned;

          (ii) PPAs representing approximately 320 MW have been assigned and are
               no longer subject to the PPA Transfer Agreement,  and the OSP PPA
               Transfer Agreement has been terminated;

          (iii)with respect to those PPAs that have not been  assigned,  USGenNE
               is acting  as NEP's  agent in order  that  USGenNE  have,  to the
               maximum extent possible, the full economic benefit (or burden) of
               such contracts;

          (iv) as  NEP's  agent,   USGenNE  administers  the  PPAs.  USGenNE  is
               authorised  to take all actions that NEP may lawfully  take under
               the PPAs without further approval by NEP; except that NEP's prior
               written consent is required for certain material actions;

          (v)  NEP makes  available  to  USGenNE,  at the point at which a power
               seller makes  delivery to NEP, all energy and any other  benefits
               NEP receives under each PPA from such power seller.  USGenNE pays
               to NEP each month all amounts due from NEP to a power  seller for
               the preceding  month less the amount of a monthly support payment
               averaging $9.5 million per month up to 31 January, 2008; and

          (vi) under  certain  conditions  involving  formal  assignment  of the
               contracts   to  USGenNE  and  a  release  of  NEP  from   further
               obligations to the power supplier, NEP is required to make a lump
               sum   payment  of  the  present   value  of  the  monthly   fixed
               contribution obligation attributable to the assigned contract;

     (c)  an Asset Purchase Agreement dated as of 27 January, 1998 (the "Oil and
          Gas  Property  Agreement"),  and made  between (1) New England  Energy
          Inc., a subsidiary  of NEES  ("NEEI") and (2) Samedan Oil  Corporation
          ("Samedan"), whereby:

          (i)  Samedan paid approximately $50,000,000 to NEEI for 21 oil and gas
               properties,  with ownership  transfer  effective as of 1 January,
               1998. The properties  consisted of oil and gas offshore interests
               in the Gulf of Mexico and onshore  interests located in Texas and
               Wyoming;

          (ii) Samedan agreed to assume all future liabilities,  including those
               for plugging and abandoning the properties; and

          (iii)NEEI agreed to indemnify  Samedan  against  claims related to the
               properties prior to 1 January, 1998; and


                                      -58-

<PAGE>



     (d)  an  Agreement  and Plan of Merger  dated 1  February,  1999,  and made
          between (1) NEES,  (2)  Research  Drive LLC, a  Massachusetts  limited
          liability  company  which is directly and  indirectly  wholly owned by
          NEES  ("LLC") and (3) EUA, a  Massachusetts  business  trust (the "EUA
          Merger Agreement"), whereby LLC will merge with and into EUA (the "EUA
          Acquisition"),  with EUA being the  surviving  entity  and  becoming a
          wholly  owned  subsidiary  of NEES.  Under the terms of the EUA Merger
          Agreement,  each  outstanding  share of  EUA's  common  stock  will be
          converted into the right to receive $31.00 in cash, as may be adjusted
          as follows: if the closing date does not occur on or prior to the date
          that  is  the  six  month   anniversary  of  the  date  on  which  EUA
          shareholders approve the EUA Acquisition (the "Adjustment Date"), then
          the per  share  amount  shall be  increased  for each  day  after  the
          Adjustment  Date up to and including the day which is one day prior to
          the  earlier  of the  closing  date  and 1 May,  2000  (the  "Extended
          Termination  Date" as defined  below),  by an amount  equal to $0.003.
          NEES expects that the EUA Acquisition will be completed by early 2000.

          The EUA  Acquisition is subject to certain  conditions,  including the
          approval of EUA's shareholders by an affirmative vote of two-thirds of
          the   outstanding   EUA  shares  and  the  receipt  of  all  necessary
          governmental  approvals and the making of all  necessary  governmental
          filings,  including  the consent or approval of certain  state utility
          regulators,  the approval of the Federal Energy Regulatory Commission,
          the approval of the SEC under the Public Utility  Holding  Company Act
          of 1935 and the approval of the Nuclear Regulatory Commission. The EUA
          Acquisition also requires  clearance under US anti-trust laws. The EUA
          Acquisition is not conditional on Completion.

          Either party may  terminate  the EUA Merger  Agreement if: (i) the EUA
          Acquisition  has not been effected by 31 December,  1999 (the "Initial
          Termination  Date"),  provided that if the parties are otherwise ready
          to close, but certain  statutory  approvals are not yet obtained,  the
          Initial  Termination  Date will be  extended  to 30  April,  2000 (the
          "Extended  Termination  Date"), or (ii) any law, rule or regulation is
          adopted which makes the EUA  Acquisition  illegal.  NEES may terminate
          the EUA  Merger  Agreement  if:  (i) EUA fails to  obtain  shareholder
          approval,   (ii)   there   has  been  a   material   breach  of  EUA's
          representations,   warranties  or  agreements  under  the  EUA  Merger
          Agreement, (iii) EUA's Board withdraws or modifies its approval of the
          EUA  Acquisition or its  recommendation  to its  shareholders  or (iv)
          EUA's Board  approves,  recommends  or takes no position  regarding an
          alternative proposal. EUA may terminate the EUA Merger Agreement:  (i)
          if NEES fails to deliver the merger  consideration,  (ii) if there has
          been a  material  breach  of  NEES's  representations,  warranties  or
          agreements  under the EUA  Merger  Agreement  or (iii)  under  certain
          circumstances  in order to accept  an  alternative  proposal  if EUA's
          Board determines that such termination is necessary to act in a manner
          consistent with its fiduciary duties.

          EUA will  pay  NEES a  termination  fee of $20  million  plus up to $5
          million for documented  out-of-pocket  expenses if: (i) EUA terminates
          the  EUA  Merger   Agreement   because  EUA's  Board  determined  that
          termination was necessary for EUA's Board to act consistently with its
          fiduciary  duties  under  applicable  law;  or  (ii)  the  EUA  Merger
          Agreement is terminated by NEES at a time when an alternative business
          proposal  is pending  because  (a) EUA  shareholder  approval  was not
          obtained, (b) EUA materially breached its representations,  warranties
          or  agreements  under the EUA Merger  Agreement  or EUA's Board take a
          position  adverse to the EUA Acquisition or (c) EUA terminates the EUA
          Merger  Agreement  because  closing has not  occurred by the  Extended
          Termination  Date and then in addition to (a),  (b), or (c) EUA enters
          into a merger or acquisition agreement with the third party within two
          years of such termination.

          NEES  will  pay EUA a  termination  fee of $10  million  plus up to $5
          million  for  documented   out-of-pocket   expenses  if  either  party
          terminates  because the closing  date has not  occurred by the Initial
          Termination Date, or if the Initial Termination Date is extended,  the
          Extended  Termination  Date,  provided,  that the closing date has not
          failed to occur due to a failure on the part of the terminating  party
          to fulfil any  obligation  under the EUA Merger  Agreement  and on the
          date of such  termination:  (i) all  conditions  to closing  have been
          fulfilled or are capable of being fulfilled other than the

                                      -59-

<PAGE>



          condition  requiring that certain statutory  consents and approvals be
          obtained;  (ii) if the date of  termination is any date other than the
          Extended Termination Date or a date thereafter, all conditions of each
          party have been fulfilled or are capable of being fulfilled other than
          the  conditions  concerning  statutory  consents and approvals and the
          certification of NEES and LLC's performance of obligations;  and (iii)
          the Acquisition has not been completed.

6. Miscellaneous

6.1  Significant changes

     (a)  Save as disclosed  in  paragraphs  1, 5, 6, 7 and 8 of the  Chairman's
          letter in Part I of this document,  the Directors are not aware of any
          significant  change in the  financial or trading  position of National
          Grid  Group  since 30  September,  1998,  the  date to which  the last
          interim financial statements of National Grid Group were made up.

     (b)  Save for the EUA Acquisition,  details of which are set out in section
          4 of  Part  III of this  document  and in  paragraph  5.2  above,  the
          Directors are not aware of any significant  change in the financial or
          trading  position of NEES Group since 31 December,  1998,  the date to
          which the last financial statements of NEES Group were made up.

6.2  Consents

     (a)  Rothschild, which is regulated by The Securities and Futures Authority
          Limited,  has given and has not withdrawn  its written  consent to the
          issue of this document with the inclusion  herein of references to its
          name in the form and context in which it appears.

     (b)  Dresdner  Kleinwort  Benson,  which is regulated by The Securities and
          Futures Authority Limited, has given and has not withdrawn its written
          consent to the issue of this  document  with the  inclusion  herein of
          references to its name in the form and context in which it appears.

     (c)  PricewaterhouseCoopers have given and have not withdrawn their written
          consent to the  inclusion in Part III of this document of their letter
          and of  references  to their name in the form and  context in which it
          appears.

7.   Documents available for inspection

     Copies of the following  documents will be available for inspection  during
     normal  business  hours  on any  weekday  (Saturdays,  Sundays  and  public
     holidays  excepted) at the offices of Cameron  McKenna,  Mitre  House,  160
     Aldersgate Street, London EC1A 4DD up to and including 22 April, 1999:

     (a)  the Memorandum and Articles of Association of the Company;

     (b)  the material contracts referred to in paragraph 5 above;

     (c)  the service contracts referred to in paragraph 3.4 above;

     (d)  the proxy statement addressed to NEES Shareholders referred to on page
          7 of this document;

     (e)  the  letter  from  PricewaterhouseCoopers  set out in Part III of this
          document;

     (f)  the  consolidated  audited accounts of National Grid Group for the two
          financial years ended 31 March,  1998 including all notes,  reports or
          information  required by the Act and the unaudited  interim  financial
          statements  of  National  Grid  Group  for the  six  months  ended  30
          September, 1998;

                                      -60-

<PAGE>



     (g)  the consolidated  audited accounts of NEES Group for the two financial
          years ended 31 December, 1998; and

     (h)  the letters of consent referred to in paragraph 6.2 above.



                                      -61-

<PAGE>



                                   DEFINITIONS

The following  definitions  apply  throughout  this document  unless the context
requires otherwise:

"Act"                               the Companies Act 1985, as amended

"Acquisition"                       the proposed acquisition of NEES by
                                    National Grid pursuant to the Merger
                                    Agreement

"Completion"                        the  closing  of the  Acquisition  following
                                    satisfaction  or  waiver  of the  conditions
                                    attaching to the  Acquisition and the filing
                                    of  a   certificate   of  merger   with  the
                                    Secretary of State for the  Commonwealth  of
                                    Massachusetts

"Directors" or "Board"              the directors of National Grid listed in 
                                    paragraph 3.1 of Part VI of this document

"Dresdner Kleinwort Benson"         Kleinwort Benson Limited

"Extraordinary General Meeting"     the extraordinary general meeting of 
                                    National Grid convened for 10.00 a.m.

or "EGM"                            on 22 April, 1999, notice of which is set 
                                    out at the end of this document

"Energis"                           Energis plc, an associate of National Grid
                                    involved in the provision of
                                    telecommunications services

"EUA"                               Eastern Utilities Associates

"EUA Acquisition"                   the proposed acquisition of EUA by NEES

"Form of Proxy"                     the form of proxy for use at the 
                                    Extraordinary General Meeting, accompanying
                                    this document

"GAAP"                              Generally Accepted Accounting Principles

"HSBC"                              HSBC Investment Bank plc

"Merger Agreement"                  the Agreement and Plan of Merger dated 11 
                                    December, 1998, entered into between
                                    National Grid, NGG Holdings and NEES

"MW"                                megawatt

"National Grid" or "Company"        The National Grid Group plc

"National Grid Group"               National Grid and its subsidiaries and 
                                    "member of National Grid Group" shall be
                                    construed accordingly

"National Grid Shareholders"        holders of National Grid Shares

"National Grid Shares"              ordinary shares of 1113/17p each in the 
                                    capital of National Grid


                                      -62-

<PAGE>



"NEES"                              New England Electric System

"NEES Group"                        NEES and its subsidiaries and "member of
                                    NEES Group" shall be construed accordingly

"NEES Shareholders"                 holders of NEES Shares

"NEES Shares"                       common shares of NEES

"NGC"                               The National Grid Company plc, a 
                                    wholly-owned subsidiary of National Grid

"NGG Holdings"                      NGG Holdings LLC, an indirect wholly-owned
                                    subsidiary of National Grid,
                                    formerly named Iosta LLC

"OFFER"                             the Office of Electricity Regulation

"Rothschild"                        N M Rothschild & Sons Limited and
                                    Rothschild Inc.

"SEC"                               the US Securities and Exchange Commission

"Share Option Schemes"              the NGC Savings Related Share Option 
                                    Scheme, the NGC Executive Share Option
                                    Scheme, the NGC Trust Scheme, the NGC
                                    Share Matching Scheme and the PSB
                                    Scheme

"UK"                                the United Kingdom of Great Britain and
                                    Northern Ireland

"US"                                the United States of America, its
                                    territories and possessions, any state of
                                    the United States of America and the
                                    District of Columbia, and all other
                                    areas subject to its jurisdiction

"$"                                 US dollar

Save for the  statement  of  indebtedness  set out in Part IV of this  document,
amounts  converted from US dollars to pounds sterling have been calculated at an
exchange  rate of $1.63:  (pound) 1.00,  being the rate  prevailing on 25 March,
1999 (the latest practicable date prior to publication of this document).



                                      -63-

<PAGE>



                           The National Grid Group plc
                     Notice of Extraordinary General Meeting

NOTICE IS HEREBY GIVEN that an Extraordinary General Meeting of the Company will
be held at the International Convention Centre, Broad Street,  Birmingham B1 2EA
on 22 April,  1999 at 10.00 a.m. for the purposes of considering and, if thought
fit,  passing  the  following  resolution  which will be proposed as an ordinary
resolution:

THAT the acquisition of New England  Electric System by the Company  (whether or
not  through a  subsidiary  of the  Company)  as  described  in the  circular to
shareholders  dated 31  March,  1999 be and it is hereby  approved  and that the
Directors or a Committee of the  Directors be and they are hereby  authorised to
complete the same with such modifications,  variations,  amendments or revisions
as they  think  fit  provided  such  modifications,  variations,  amendments  or
revisions are not of a material nature.

                             On behalf of the Board          Registered Office:
                                     Fiona B Smith          National Grid House
               Company Secretary and General Counsel          Kirby Corner Road
                                       31 March, 1999          Coventry CV4 8JY
                                                          Registered in England
                                                          and Wales No. 2367004

Notes:

1. A member  (shareholder)  of the Company who is entitled to attend and vote at
the Extraordinary  General Meeting ("EGM") but is unable to be present in person
is entitled  to appoint a proxy or proxies to attend the EGM and, on a poll,  to
vote on his or her behalf.  A Form of Proxy is enclosed  with this  document and
instructions  on how to fill in the Form of Proxy are set out at the end of this
document.

2. As permitted by Regulation 34 of the  Uncertificated  Securities  Regulations
1995, only those shareholders who are registered on the Company's share register
at 6.00 p.m.  on 20 April,  1999 shall be entitled to attend the EGM and to vote
in  respect  of the  number of shares  registered  in their  names at that time.
Changes to entries on the share register after 6.00 p.m. on 20 April, 1999 shall
be disregarded in determining  the rights of any person to attend and/or vote at
the EGM.

How to fill in the Form of Proxy

If you cannot  attend the EGM in person,  you are entitled to appoint a proxy or
proxies  to attend the EGM and,  in the event that a poll is called,  to vote on
your behalf. To appoint a proxy or proxies you must fill in the enclosed Form of
Proxy, sign it and return it to our share registrars,  Lloyds TSB Registrars, so
that it is received no later than 10.00 a.m. on 20 April,  1999. If someone else
signs  the  Form of  Proxy  on your  behalf,  their  authority  to do so must be
returned with the Form of Proxy. If the appointer is a corporation,  the Form of
Proxy must be  executed  under its common seal or signed on its behalf by a duly
appointed  officer or  attorney.  The  appropriate  power of  attorney  or other
authority  or a  notarially  certified  copy of such  power (if any),  should be
returned  with the Form of  Proxy.  In the case of joint  shareholders,  any one
holder may sign the Form of Proxy. If more than one holder signs,  only the vote
of the  first  named on the  Company's  share  register  will be  accepted.  Any
alterations to the Form of Proxy must be initialled.

Before filling in the Form of Proxy, please read the notes set out below.

What is a poll?

Votes on most resolutions at an EGM are decided on a show of hands in which each
shareholder  present is entitled to cast one vote  irrespective of the number of
shares he or she owns.


                                      -64-

<PAGE>


However,  if a poll is called  in  accordance  with the  Company's  Articles  of
Association  (a common  situation  being  where the result of a show of hands is
unclear), every shareholder of the Company (whether present in person at the EGM
or  represented  by proxy) is  entitled  to cast a number of votes  equal to the
number of shares in the Company he or she owns.

Who can be appointed a proxy?

You can appoint anyone you like as your proxy or proxies:  a proxy does not have
to be a shareholder of the Company.  If you wish, you can also appoint more than
one proxy. However, you are responsible for ensuring that the person you appoint
is able and  willing  to attend the EGM on your  behalf.  If your proxy does not
attend  the EGM,  your vote will not be cast in the event of a poll.  Unless you
specifically  nominate  another  person or persons to attend the EGM and vote on
your  behalf,  the  Chairman of the Meeting  will be appointed as your proxy and
will vote on your behalf according to your instructions.

If you wish to appoint as your proxy someone other than the Chairman,  cross out
the words "the  Chairman  of the  Meeting or" on the Form of Proxy and write the
full name(s) of your proxy or proxies in the space provided.

In what circumstances will a proxy be able to vote at the EGM?

Your proxy will be able to vote on your behalf on the resolution  only if a poll
is called on the resolution. Proxies cannot vote on a show of hands.

How do I instruct my proxy on how my votes should be cast?

The resolution to be proposed at the EGM is set out in full in the Notice of EGM
on the preceding page.  This resolution is described in abbreviated  form on the
Form of Proxy.

To instruct your proxy on how to vote on the resolution in the event that a poll
is called,  please  tick the  appropriate  box against  the  resolution  to show
whether your proxy should vote "for" or "against".

Please  note  that  if you do  not  give  specific  voting  instructions  on the
resolution by placing a tick in the appropriate  box, your proxy will be free to
vote  or  abstain  on  the  resolution  as he or  she  thinks  fit.  Unless  you
specifically  instruct  otherwise,  your proxy may also vote or abstain as he or
she  thinks  fit  on  any  other  business  (including  any  amendments  to  the
resolution) which may properly come before the EGM.

What happens if I appoint a proxy, then decide to attend the EGM myself?

Even if you return a  completed  Form of Proxy,  you will still be  entitled  to
attend the EGM  instead of your  proxy and to  participate  in voting by show of
hands or by poll if you so  wish.  In the  event of a poll in which  you vote in
person, your proxy will be disregarded.


                                      -65-


                                    DE 99-035

                           NEW ENGLAND ELECTRIC SYSTEM

                 ORDER REGARDING APPLICABILITY OF RSA 369:8, II
                             TO PROPOSED TRANSACTION
                             AND SCHEDULING HEARING

                              O R D E R N O. 23,202

                                 April 21, 1999

I. BACKGROUND

     On March 18, 1999, New England  Electric System and The National Grid Group
plc (NEES and National Grid,  respectively)  filed with the New Hampshire Public
Utilities  Commission  (Commission)  certain  affidavits,  testimony and related
exhibits concerning their agreement to merge. Under the agreement, National Grid
would  acquire all of the common  shares of NEES.  NEES is a registered  holding
company  organized under  Massachusetts  law and subject to the authority of the
Securities  and  Exchange  Commission  (SEC)  under the Public  Utility  Holding
Company Act of 1935 (PUHCA),  and  transacts  business in this state through its
wholly-owned subsidiaries Granite State Electric Company (Granite State) and New
England Power Company (NEP).

     Granite State is a public  utility  providing  retail  electric  service to
approximately  35,000  customers  in  New  Hampshire.  NEP is a  public  utility
providing  transmission  service to Granite State and other entities  within the
State. National Grid is a holding company incorporated in England and Wales, and
either has or will register as a holding company under the PUHCA.


<PAGE>


     -2- The filing raises,  inter alia, issues related to: whether the proposed
transaction will not adversely affect the rates, terms, service, or operation of
Granite  State;  whether the approval of the  Commission of this  transaction is
required;  and whether,  as requested by Granite State,  the  Commission  should
certify  to the SEC (a)  that it has the  authority  and  resources  to  protect
Granite State's  customers,  with respect to matters such as rates,  financings,
affiliate  transactions  and financial  integrity,  and (b) that the  Commission
intends to continue  to exercise  that  authority  following  the closing of the
transaction.

II.  DISCUSSION AND ANALYSIS

     Pursuant  to RSA 374:33,  the  acquisition  by a utility or public  holding
company of more than 10  percent  of the stocks or bonds of a public  utility or
public utility holding  company  incorporated in or doing business in this state
requires Commission approval.  RSA 369:8, II provides,  however,  that where the
parent  company of a utility  regulated by the  Commission  seeks to merge or be
acquired by another  utility,  the approval of the Commission is not required if
there will be no adverse  effect on rates,  terms,  service or operations of the
New Hampshire  utility,  and a written  representation to that effect is made to
the Commission.

     In order to determine  whether the provisions of RSA 369:8, II apply,  with
the result that Commission approval of the proposed transaction is not required,
the   Commission   must  make  a   determination   as  to  whether  the  written
representations made by


<PAGE>


                                       -3-

the companies - Granite State and NEP - are accurate.  The mere  representations
of the public utility are not sufficient to satisfy the statute;  the Commission
must independently  verify that no adverse effect will occur. This is consistent
with the  obligation  of the  Commission  in RSA 374:3 "to carry into effect the
provisions" of Title 38, which includes RSA 369.

     In the  representations  and commitments made by representatives of Granite
State and NEP in their filing of March 18, 1999, it is specifically acknowledged
that both the  Company  and NEP may be  allocated  a portion of the  acquisition
premium and transaction  costs  associated with the  transaction.  Granite State
claims that the  acquisition  premium and  transaction  costs will not adversely
affect its rates, terms, service and operations because they will be recorded in
below-the-line  accounts  and will not be  reflected  in  rates  absent  express
authorization of the Commission. Granite State also claims that it will not seek
recovery in rates  absent a showing of  offsetting  savings and  benefits to its
customers.  Finally,  Granite State represents that should it seek rate recovery
of these  costs,  it agrees to waive any and all  claims  that the  Commission's
authority  to review  their  allocation  is preempted by the SEC's review of the
allocation  of these costs.

     NEP similarly  claims that any  allocation of the  acquisition  premium and
transaction  costs will not  adversely  affect the rates,  terms,  service,  and
operations of NEP because they will be recorded in  below-the-line  accounts and
will not be


<PAGE>


                                       -4-

reflected in NEP rates absent express authorization of the FERC. NEP also claims
that it will not seek (before the FERC)  recovery of these costs in rates absent
a showing of offsetting savings and benefits to its customers.

     Based  upon the filed  material  provided  by  Granite  State and NEP,  the
Commission  concludes  that the proposed  transaction  may adversely  affect the
rates,  terms,  service,  or  operation  of  either  Granite  State or NEP,  and
therefore  the  requirements  of RSA  369:8,  II have  not been  satisfied.  The
allocation of a portion of the acquisition  premium to Granite State and NEP may
indeed have an adverse  affect.1 This is because it cannot be maintained at this
time that such allocation is "just and reasonable." Moreover, the representation
that recovery in rates of the  acquisition  premium will not be sought "absent a
showing of offsetting  savings and benefits to customers"  presupposes that such
benefits  may be employed as offset  against  these  costs,  as opposed to being
passed through the ratepayers.

- --------

1    We note that while the affidavits of Messrs.  Reilly and Flynn, officers of
     Granite State and NEP,  respectively,  represent that Granite State and NEP
     "may" be  allocated a portion of the  acquisition  premium,  the  pre-filed
     testimony of Mr. Urwin,  Managing  Director of National Grid, the acquiring
     company, states that "the acquisition premium will be 'pushed down' to NEES
     and allocated to its affiliates." (Testimony of Roger Urwin at 18, emphasis
     supplied.)


     Granite  State's  further  representation  that it will  waive  any and all
claims that the  Commission's  authority to review the allocations are preempted
by the SEC will not prohibit  another  person or party - such as a customer of a
NEES affiliate


<PAGE>


                                       -5-

in another  jurisdiction  - from  attempting to assert the SEC's approval of the
allocation  as a  bar  to  any  subsequent  review  and  determination  by  this
Commission.  Finally,  the recovery of any allocations to NEP are subject to the
jurisdiction and review of the FERC, not this Commission, and the interests that
the FERC and this Commission weigh and consider are not conterminous.

     Therefore,  having  determined  that the conclusions in Granite State's and
NEP's written  representations  are incorrect,  the Commission finds that it has
jurisdiction  over the  proposed  transaction  pursuant to RSA 374:2,  374:3 and
374:33, and the approval of the Commission must be obtained.

     This  determination  is not a  decision  on the  merits  of the  underlying
transaction  and whether it should or should not be approved as proposed.  Other
potential impacts of the transaction will also be reviewed,  including,  without
limitation,  the  impact  of  non-domestic  corporations  owning  parts  of  the
transmission grid. Such an arrangement may implicate national security concerns,
as well as concerns about the remoteness of management.

     Based upon the foregoing, it is hereby ORDERED, that a

     Prehearing  Conference,  pursuant to N.H. Admin.  Rules Puc 203.05, be held
before the Commission located at 8 Old Suncook Road,  Concord,  New Hampshire on
May 4, 1999 at 10:00  a.m.,  at which  each  party  will  provide a  preliminary
statement  of its  position  with regard to the filing and any of the issues set
forth in N.H. Admin Rule Puc 203.05(c) shall be considered; and it is


<PAGE>


                                       -6-


     FURTHER ORDERED, that the Prehearing Conference may be tape recorded unless
a party,  at least 5 days in advance  of the  Prehearing  Conference,  request a
transcript,  in which case the  Commission  shall order a  stenographic  record,
pursuant to N.H. Admin. Rule Puc 2203.05(d); and it is

     FURTHER ORDERED,  that,  immediately  following the Prehearing  Conference,
NEES,  National  Grid,  the Staff of the  Commission  and any  Intervenors  hold
Technical  Session to review the petition  and allow NEES and  National  Grid to
provide any amendments or updates to its filing; and it is

     FURTHER ORDERED,  that pursuant to N.H. Admin.  Rules Puc 203.01,  NESS and
National  Grid shall notify all persons  desiring to be heard at this hearing by
publishing  a copy of this Order of Notice no later than  April 27,  1999,  in a
newspaper with statewide circulation or of general circulation in those portions
of the state which  operations  are  conducted,  publication to be documented by
affidavit filed with the Commission on or before May 3, 1999; and it is

     FURTHER ORDERED,  that pursuant to N.H. Admin. Rule 201.05,  the Commission
waives, in part, the fourteen day notification  requirement of N.H. Admin. Rules
Puc 203.01(a); and it is

     FURTHER ORDERED,  that pursuant to N.H. Admin.  Rules Puc 203.02, any party
seeking  to  intervene  in the  proceeding  shall  submit to the  Commission  an
original and eight  copies of a Petition to  Intervene  with copies sent to NEES
and National Grid


<PAGE>


                                      -7-

and the  Office of the  Consumer  Advocate  on or before  April 30,  1999,  such
Petition stating the facts  demonstrating  how its rights,  duties,  privileges,
immunities or other substantial interests may be affected by the proceeding,  as
required by N.H. Admin. Rule Puc 203.02 and RSA 541-A:32,I(b); and it is

     FURTHER  ORDERED,  that any party objecting to a Petition to Intervene make
said Objection on or before May 3, 1999.

     By  order  of  the  Public  Utilities  Commission  of  New  Hampshire  this
twenty-first day of April, 1999.




/s/ Douglas L Patch        /s/ Susan S.  Geiger       /s/ Nancy Brockway


Douglas L. Patch          Susan S. Geiger             Nancy Brockway
Chairman                  Commissioner                Commissioner



Attested by:



/s/ Kimberly Nolin Smith

Kimberly Nolin Smith
Assistant Secretary


     Any individuals  needing assistance or auxiliary  communication aids due to
sensory  impairment  or other  disability,  should  contact  the  American  with
Disabilities Act Coordinator,  NHPUC, 8 Old Suncook Road, Concord, New Hampshire
03301-7319;  603-271-2431;  TDD Access: Relay N.H.  1-800-735-2964.  Preferably,
notification  of the need for  assistance  should  be made one week  before  the
scheduled event.


                                STATE OF VERMONT
                              PUBLIC SERVICE BOARD


Joint Petition of The National Grid Group plc  )
and New England Power Company for approval     )
pursuant to 30 V.S.A. ss.107 of the indirect   )        Docket No. ________
acquisition of a controlling interest in New   )
England Power Company                          )


                                 JOINT PETITION

     The National Grid Group plc ("National Grid") and New England Power Company
("NEP") hereby petition the Vermont Public Service Board (the "Board"), pursuant
to 30 V.S.A. ss. 107, for approval of the indirect  acquisition by National Grid
of a controlling interest in NEP.

                                       I.

     By this petition, National Grid and NEP represent that:

     1. NEP is a Massachusetts  corporation that owns and operates properties in
Massachusetts,   New  Hampshire,   Connecticut,  Maine  and  Vermont,  including
transmission  lines,  and is a transmission  subsidiary of New England  Electric
System  ("NEES");  NEP owns  properties  in  several  Vermont  communities  used
primarily for the  transmission of electricity and has a twenty percent share of
the common stock of Vermont Yankee Nuclear Power Corporation;

     2.  NEP  has  qualified  to  transact  business  in  Vermont  as a  foreign
corporation but does not engage in local distribution of electricity therein;

     3. National Grid is a holding company incorporated in England and Wales and
is  the  world's  largest  privately-owned,  independent  transmission  company.
National  Grid's  principal  subsidiary  is The  National  Grid  Company  plc, a
corporation that owns and operates the  transmission  system and control area in
England  and  Wales  and has  indirect  interests  in  transmission  systems  in
Argentina and Zambia;

     4. On December  14, 1998,  National  Grid and New England  Electric  System
entered  into an  Agreement  and Plan of Merger,  which  provides for a business
combination  transaction;  Pursuant to the  Agreement,  NEES will merge with NGG
Holdings  LLC, a  Massachusetts  limited  liability  company that is  indirectly
wholly-owned   by  National  Grid,   with  NEES  being  the  surviving   entity,
wholly-owned by National Grid (the "Merger");

     5.  Following  the Merger,  NEP will remain a separate  corporation  wholly
owned by NEES and will  continue  to own and conduct a public  service  business
subject to the  jurisdiction  of the Board.  NEP will also retain its  ownership
interest in Vermont Yankee;

     6. The Merger  also must be approved by several  other  regulatory  bodies,
including  the  Securities  and  Exchange  Commission  under the Public  Utility
Holding Company Act of 1935, by the Federal Energy  Regulatory  Commission under
Section 203 of the Federal  Power Act,  and the  Nuclear  Regulatory  Commission
under the Atomic  Energy Act;  The Merger  also  requires a filing with the U.S.
Department  of  Justice  and  the  Federal  Trade  Commission  under  the  Hart-
Scott-Rodino Antitrust Improvements Act of 1976;

     7. Upon the Merger's consummation,  National Grid will indirectly acquire a
controlling  interest in a company that directly has a controlling interest in a
company  subject to the  jurisdiction  of the Public  Service  Board,  therefore
requiring a finding that the  acquisition  will promote the public good pursuant
to 30 V.S.A. ss.107;

     8. The merger of the parent company of NEP also requires a finding pursuant
to 30  V.S.A.  ss.  311 that  the  Merger  will not  result  in  obstructing  or
preventing competition; and

<PAGE>

     9. The proposed Merger will promote the public good of the State of Vermont
and will not result in obstructing or preventing competition.

                                       II.

     In support of this joint petition,  National Grid and NEP prefile testimony
and supporting exhibits by the following witnesses:

         Witness                             Subject Matter

     Michael E. Jesanis         Overview;  description of transaction;  public
                                good promoted by  the  Merger; and  description
                                of other regulatory approvals.

     Peter G. Flynn             Description of benefits of the Merger including
                                benefits to NEPOOL,  the  ISO  and  electric
                                customers throughout New England.

     Roger Urwin                Description  of The National Grid Group plc;
                                explanation of benefits  of  the  Merger  to
                                NEES  companies  and  their customers.


                                      III.

     National Grid and NEP request that the Board:

     A. Appoint a Hearing Officer to hear, schedule a prehearing conference for,
and issue  notice of the  opportunity  for  hearing  on this joint  petition  in
accordance with 30 V.S.A. ss.ss. 107 and 311;

     B. Find that the Merger will promote the public good;

     C. Find  that the  Merger  will not  result in  obstructing  or  preventing
competition in the purchase or sale of any product, service or commodity, in the
sale,  purchase  or  manufacture  of which The  National  Grid Group plc and New
England Electric System are engaged; and

<PAGE>

     D.  Approve  the  Merger  and take such other  measures  as in the  Board's
judgment are  necessary  for the full and  expeditious  resolution of this joint
petition.

                                      Respectfully submitted,

                                      THE NATIONAL GRID GROUP plc
                                      By: LeBouef, Lamb, Greene & MacRae
                                      Attorneys for The National Grid Group plc

                                      By: -------------------------------------
                                               Meabh Purcell

                                      NEW ENGLAND POWER COMPANY
                                      By: Downs Rachlin & Martin PLLC
                                      Attorneys for New England Power Company

                                      By: -------------------------------------
                                               Nancy S. Malmquist


Date:  March 29, 1999

<PAGE>

                                STATE OF VERMONT
                              PUBLIC SERVICE BOARD


Joint Petition of The National Grid Group plc  )
and New England Power Company for approval     )
pursuant to 30 V.S.A. ss.107 of the indirect   )    Docket No. ________
acquisition of a controlling interest in New   )
England Power Company                          )



                                   APPEARANCE

     Downs  Rachlin  & Martin  PLLC,  appears  for one of the  petitioners,  New
England Power Company. Provide copies of all filings in this docket to:

        Nancy S. Malmquist, Esq.
        Downs Rachlin & Martin PLLC
        90 Prospect Street
        P.O. Box 99
        St. Johnsbury, VT  05819-0099

        and to

        Carlos A. Gavilondo, Esq.
        Thomas G. Robinson, Esq.
        New England Power Company
        25 Research Drive
        Westborough, MA  01582-0099

St. Johnsbury, Vermont.  March 29, 1999.


                                        Respectfully submitted,
                                        DOWNS RACHLIN & MARTIN PLLC
                                        Attorneys for New England Power Company


                                        By:------------------------------------
                                                 Nancy S. Malmquist


<PAGE>

                                STATE OF VERMONT
                              PUBLIC SERVICE BOARD

Joint Petition of The National Grid Group plc  )
and New England Power Company for approval     )
pursuant to 30 V.S.A. ss.107 of the indirect   )     Docket No. ________
acquisition of a controlling interest in New   )
England Power Company                          )


                          STATEMENT OF NOTICE REQUIRED

     The petitioners, New England Power Company and The National Grid Group plc,
hereby state that notice of the above-captioned  petition is required,  pursuant
to Subsection 107 of Title 30, Vermont Statutes Annotated,  to the Department of
Public Service,  and to such other persons as the Board directs.  Exhibit A is a
proposed form of notice to the public, if required.

     St. Johnsbury, Vermont. March 29, 1999

                                      DOWNS RACHLIN & MARTIN PLLC
                                      Attorneys for New England Power Company

                                      By: -----------------------------------
                                            Nancy S. Malmquist


<PAGE>

                                STATE OF VERMONT
                              PUBLIC SERVICE BOARD


Take notice  that,  on March __, 1999,  The  National  Grid Group plc, a company
incorporated  in England and Wales,  and New England  Power  Company,  a company
qualified to transact business in Vermont as a foreign  corporation,  petitioned
the Vermont Public Service Board, pursuant to 30 V.S.A. ss. 107, for approval of
the  acquisition  by The  National  Grid  Group plc of an  indirect  controlling
interest in New England  Power  Company.  Take  notice  further  that the Public
Service Board will hold a hearing on this petition at  ---------------------  in
- -------------------  on  ----------,  1999,  at  ------------------.  Any person
wishing to intervene in this  proceeding  should give written  notice thereof to
the Board by April 15, 1999. Any questions or filings  concerning  this petition
should be made to:

                           Mrs. Susan M. Hudson, Clerk
                           Vermont Public Service Board
                           112 State Street
                           Drawer 20
                           Montpelier, VT  05620-2701


<PAGE>

                                STATE OF VERMONT
                              PUBLIC SERVICE BOARD

Joint Petition of The National Grid Group plc  )
and New England Power Company for approval     )
pursuant to 30 V.S.A. ss.107 of the indirect   )   Docket No. ________
acquisition of a controlling interest in New   )
England Power Company                          )


                             CERTIFICATE OF SERVICE

     Downs Rachlin & Martin PLLC, certifies that it has provided three copies of
the above-captioned  petition,  including its appearance,  a statement of notice
required,  this certificate and related prefiled testimony and exhibits,  to the
Vermont Department of Public Service, by first-class mail, postage prepaid, with
one copy provided to the Department's  Director of Public Advocacy,  one copy to
the Department's Director of Utility Planning,  Dr. William Steinhurst,  and one
copy to the Department's Chief Engineer, Thomas Dunn.

     St. Johnsbury, Vermont.  March 29, 1999

                                       DOWNS RACHLIN & MARTIN PLLC
                                       Attorneys for New England Power Company



                                       By: -----------------------------------
                                             Nancy S. Malmquist



                                 March 31, 1999


Department of Public Utility Control
Ten Franklin Square
New Britain, CT 06051
Attn.:  Louise Rickard
        Acting Executive Secretary

     Re:      New England Power Company; - Acquisition of
              New England Electric System by
              The National Grid Group plc

Dear Ms. Rickard:

     We represent New England  Power Company  ("NEP") in filing this letter with
the Department.  All of the common stock of NEP's parent,  New England  Electric
System ("NEES"), a registered holding company, is being acquired by The National
Grid Group plc ("National  Grid") pursuant to a Merger  Agreement dated December
11, 1998. NEP is seeking the Department's  confirmation  that it is not required
to seek Department prior approval for the acquisition of NEES by National Grid.

     NEES is a  registered  public  utility  holding  company  headquartered  in
Massachusetts. Its subsidiaries are engaged in the transmission and distribution
of  electricity  and the  marketing  of energy  commodities  and  services.  The
electricity  delivery  companies serve  approximately  1.3 million  customers in
Massachusetts,  Rhode Island and New  Hampshire.  NEES does not directly own any
generating or transmission assets located in the State of Connecticut.

     NEP is a  "foreign  electric  company,"  as that term is defined in Section
16-246a of the Connecticut  General Statutes,  Revision of 1958, as amended (the
"General  Statutes").  By virtue of NEP's  ownership  of a minority  interest in
Millstone Unit 3 located in Connecticut,  NEP, pursuant to Section 16-246c(c) of
the General  Statutes,  is an "electric  company" and a "public service company"
for all purposes of Title 16 of the General Statutes.

     National Grid is a holding  company  incorporated  in England and Wales. It
owns all the shares of The National Grid Company plc, a corporation  that is the
world's largest privately owned independent electric  transmission  company. The
National Grid Company owns,  operates and maintains the high voltage  network in
England and Wales, which connects power stations with distribution networks. The
National  Grid  Company  is also  responsible  for  scheduling  and  dispatching
generation to meet demand second-by-second and manages and controls the software
systems to do so.  Additionally,  The  National  Grid  Company owns and operates
interconnectors  that enable  electricity to be transferred  between the England
and Wales market and Scotland and France.

     Because of NEP's status as a "foreign electric company",  a review of Title
16 of the Connecticut General Statutes was necessary to determine whether or not
the approval by the Department of the transaction  contemplated under the Merger
Agreement is required.  The following analysis suggests that such an approval is
not required.

     The  first  statute  which  may  be  applicable  is  Section  16-47  of the
Connecticut  General  Statutes,  which governs "holding  companies".  A "holding
company" is defined in Section 16-47(a) to mean "any  corporation,  association,
partnership,  trust or similar organization, or person which, either alone or in
conjunction  and pursuant to an  arrangement or  understanding  with one or more
other corporations, associations, partnerships, trusts or similar organizations,
or  persons,  directly  or  indirectly,   controls  a  gas,  electric,  electric
distribution,  water,  telephone or community antenna  television  company." The
regulatory  oversight is provided  under ss.  16-47(c) which provides that "[n]o
corporation,  association, ... or person shall take any action that causes it to
become  a  holding  company  with  control  over  a  gas,   electric,   electric
distribution,  water,  telephone or community antenna television company engaged
in the business of supplying service within this state, ... or acquire, directly
or indirectly, control over such a holding company, without first making written
application to and obtaining the approval of the department." (emphasis added)

     Therefore,  it appears  that,  since  neither  NEES nor NEP  engages in the
business of supplying  service within the state,  the  requirements  of approval
under Section 16-47 do not apply. The Department reached a similar conclusion in
the application of Central Maine Power Company in Docket No. 98-06-28 concerning
that company's  creation of a holding  company,  finding that the Department did
not have jurisdiction over the transaction under that statutory provision.


<PAGE>

     The  second  statute   potentially   applicable  to  the  proposed   merger
transaction  is Section  16-43(a) of the General  Statutes,  which provides that
"[a] public  service  company  shall  obtain the approval of the  Department  of
Public Utility Control to directly or indirectly (1) merge,  consolidate or make
common stock with any other company, or (2) sell, lease, assign,  mortgage,  ...
or otherwise dispose of any essential part of its franchise,  plant equipment or
other property necessary or useful in the performance of its duty to the public,
 ...".  Since the  transaction  proposed does not involve NEP, the public service
company,  but NEES, a registered  utility holding company parent, the provisions
of Section 16-43 also do not apply.

     While it could be argued that the phrase  "directly or  indirectly"  in the
opening  section of that statute  covers the  acquisition  of a holding  company
which,  in turn,  owns a public service  company,  we doubt that the legislature
intended such essentially  unlimited extension of state review of "above holding
company"  level  transactions.   Additionally,  we  are  unaware  of  any  prior
Department  decisions  or  applications  which  purport  to  cover  an  entirely
tangential  transaction  solely  involving  the  parents,  affiliates  and other
corporate-related   entities  of  a  public   service   company  such  as  those
contemplated  by the Merger  Agreement.  Matters  otherwise  within the scope of
Section 16-43 but removed by corporate  organization  from the regulated  public
service company occur  regularly and,  should the Department  assert that it has
jurisdiction over such transactions, the Department could be expected to receive
numerous  applications  for  approval  of  such  transactions  even  though  the
transactions would appear to involve no legitimate state issues in Connecticut.

     Additionally,  the proposed transaction is already being scrutinized by the
Securities  and Exchange  Commission  ("SEC") under the Public  Utility  Holding
Company Act, the Federal Energy  Regulatory  Commission,  to which a Section 203
filing has been submitted,  the Nuclear  Regulatory  Commission under the Atomic
Energy Act, the state utility  regulatory agency of the state of Vermont,1 and a
representation  of no net harm to  customers is required in New  Hampshire.  The
proposed  transaction  also  requires a Hart Scott  Rodino  filing with the U.S.
Justice  Department.  Finally,  although  no formal  approval is required by the
Massachusetts  Department of  Telecommunications  and Energy ("DTE"), that state
agency is  reviewing  the  proposed  transaction  as well and will be  providing
comments  (along with New Hampshire and Rhode Island  regulators)  to the SEC to
the effect that the DTE has the  authority and resources to protect rate payers,
including  in  particular,  with  regard to matters  such as rates,  financings,
affiliate  transactions  and  financial  integrity,  and that the DTE intends to
exercise its authority.

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

1    In contrast with the provisions of Section 16-43 of the Connecticut General
     Statutes,  the pertinent provision of the Vermont legislation provides that
     "[n]o company shall directly or indirectly  acquire a controlling  interest
     in any company subject to the  jurisdiction of the public service board, or
     in any company which,  directly or indirectly has a controlling interest in
     such a company,  without  the  approval of the public  service  board," (30
     V.S.A.   Section  107);  thus  requiring  that  state's   approval  of  the
     acquisition of NEES by National Grid.


<PAGE>


     In view of the importance of the proposed  transaction to NEES and National
Grid, they wish to be certain that all required regulatory approvals relating to
the merger have been obtained. On behalf of NEP, therefore,  we would appreciate
the  Department's  confirmation  that  it is not  necessary  to seek  its  prior
approval  of the  NEES-National  Grid merger  from the  Department  prior to the
merger.

     If,  however,  the  Department  does not concur  with our  analysis in this
regard,  we have enclosed with this letter copies of the testimony of Michael E.
Jesanis, Roger Urwin, and Peter G. Flynn, filed with the Massachusetts DTE. This
testimony sets forth in detail the particular  elements of the  transaction  and
includes a copy of the Merger Agreement and its exhibits.

     Because  NEES  and  National  Grid  are  attempting  to  close  the  merger
expeditiously,  they are seeking to have all necessary  regulatory  approvals in
hand  prior to May 31,  1999.  To that end,  NEP would be happy to  provide  any
additional   documentation  or  information  that  the  Department  believes  is
necessary to properly evaluate this request.  Finally,  the Department's  prompt
response to this request would be greatly appreciated.

                                     Very truly yours,



                                      Peter G. Boucher

Attachments


                                   Exhibit J-1
                             The National Grid Group
                            Description of Companies

     The following is a description of the one direct and other indirect  active
subsidiaries of The National Grid Group plc. National Grid Group has a number of
dormant  subsidiaries  (often formed for purposes of potential projects that are
not   realized)   that   are   not   included   herein.    As   noted   in   the
Application/Declaration,  the discussion of the independent  bases for retaining
any   subsidiary   other  than  National  Grid  Holdings  is  provided  for  the
Commission's information and is not required for purposes of Section 11(b)(1) of
the Act.  Except as other noted,  all entities  listed below are organized under
the laws of England and Wales.

I.   National Grid Holdings plc ("National Grid  Holdings") is the  intermediate
     holding  company  for  all  of  National  Grid  Group's   non-NEES  related
     operations.  On or prior  to  consummation  of the  Merger,  National  Grid
     Holdings  will be  qualified  as a  "foreign  utility  company"  within the
     meaning  of the Act.  As a result,  it and all of its  subsidiaries  may be
     retained by National Grid Group pursuant to the provisions of Section 33(c)
     of the Act.

     1.   The National  Grid Company plc.  ("NGC") As the electric  transmission
          company in England and Wales, NGC provides  transmission  service on a
          for-profit,  non-  discriminatory  basis and  maintains  and makes all
          improvements  to  optimize  access to the system,  procures  ancillary
          services  on the  transmission  system of England  and Wales,  matches
          supply and demand,  manages the daily system of  half-hourly  bids for
          competing  generators  and makes  payments  due from each day's energy
          trading.  NGC is organized  under the laws of England and Wales and is
          subject to  regulatory  controls  overseen by the Director  General of
          Electricity Supply. NGC has seven active subsidiaries, as follows:

          a.   NGC  Nominees  Limited  serves as a  shareholder  for a number of
               National  Grid Group  entities,  as it is  customary in the UK to
               have more than one shareholder in most corporate  entities.  This
               company is not otherwise an operating entity.

          b.   Datum Solutions Limited is engaged in providing metering services
               in the  United  Kingdom  at  entry  and exit  points  of the U.K.
               transmission   system,  and  more  widely  to  customers  in  the
               competitive market.

          c.   Energy Settlements and Information  Services Limited operates the
               computer systems needed to calculate prices and payments due as a
               result of the daily trading of power across England and Wales.

          d.   Energy Pool Funds Administration  Limited manages the transfer of
               funds in payments for the energy traded.

          e.   NGC Employee  Shares Trustee Limited serves as trustee in respect
               of the National Grid Profit Sharing  Scheme and Employee  Benefit
               Trust,  which are trusts set up for  employees  of National  Grid
               Group. This company does not have any independent operations.

<PAGE>

                          
          f.   NGC Leasing  Limited is engaged in the leasing of motor  vehicles
               for use by employees of the National Grid Group system.

          g.   NGC  Properties  Limited owns and develops  property  that is not
               used for the operation of the transmission system, usually with a
               view toward eventual sale.

          NGC does not directly or indirectly derive any part of its income from
          the  generation,  transmission  or distribution of electric energy for
          sale or the  distribution at retail of natural or manufactured gas for
          heat,  light or power within the U.S. None of NGC or its  subsidiaries
          is a public  utility  company  operating  in the  U.S.  On or prior to
          consummation  of the  Merger,  NGC  will be  qualified  as a  "foreign
          utility  company"  within  the  meaning  of the  Act  and  it and  its
          subsidiaries  may be retained by National  Grid Group  pursuant to the
          provisions of Section 33(c) of the Act.

     2.   National  Grid   Insurance   Limited  was  organized  in  Guernsey  in
          connection  with the  self-insured  retention  of  NGC's  transmission
          assets.  National  Grid Group  holds all of the  outstanding  ordinary
          shares  of  National  Grid  Insurance  and  Barclays  Bank  holds  its
          outstanding  preference  shares.  As  noted  in the  Application,  the
          Commission  has  previously   authorized  other   registered   holding
          companies to engage in self-insurance activities (see The Columbia Gas
          System,  Inc.,  Holding Co. Act Release No.  26596 (Oct.  25,  1996)),
          thereby clarifying that such insurance is functionally related to core
          utility operations and therefore retainable by National Grid Group.

     3.   National  Grid  International  Limited is the  holding  company  for a
          number of the group's non-U.K.  investments,  including  operations in
          South America,  India, Africa and the U.S. National Grid International
          was formed has four direct and a number of indirect  subsidiaries,  as
          follows:

          a.   National Grid Overseas Limited is an intermediate holding company
               above most of the South  American,  Indian and African  interests
               held by the National Grid Group.

               i.   National  Grid  Holdings BV is organized in the  Netherlands
                    and is a holding company for operations in Brazil and India.

                    (1) National Grid India BV,  another  Netherlands  organized
                    company,   organizes  and  controls  National  Grid  Group's
                    investments in India.


<PAGE>


                    (2) NGC do Brasil  Participacoes  Ltda, a Brazilian  company
                    and National Grid Brazil BV, a Netherlands company, serve to
                    organize and control  National Grid Group's  investments  in
                    Brazil.  They currently own three entities  formed under the
                    laws of Brazil as follows:  JVCO Participacoes Ltda (a joint
                    venture vehicle for National Grid Group and Sprint),  Holdco
                    Participacoes  Ltda (an  intermediate  joint venture vehicle
                    pursuant to which other  investors are involved in Brazilian
                    telecom  operations)  and Bonari  Holding Ltda, an operating
                    company engaged in telecommunications operations in Brazil).

               ii.  National  Grid  Zambia  BV, is formed  under the laws of the
                    Netherlands  that  organizes  and  controls   National  Grid
                    Group's investments in Zambia.

                    (1) Copperbelt Energy Corporation plc, a Zambian corporation
                    that is some 40% owned by  National  Grid and is  engaged in
                    buying,  selling and  transmitting  electricity  to meet the
                    needs of the copper mining regions of Zambia. NGC Zambia and
                    National   Grid  Zambia  were  formed  for  the  purpose  of
                    facilitating  National  Grid's  ownership and  operations of
                    African  operations.  Another  registered  holding  company,
                    CINergy, also owns a significant interest in Copperbelt.

               iii. National Grid Finance BV. A company formed under the laws of
                    the  Netherlands  that  serves  as  a  holding  company  for
                    operations in Argentina.  National Grid Overseas holds a one
                    third interest in National Grid Finance directly.

                    (1)  Citelec  SA  (41.25%  interest  held by  National  Grid
                    Group),

                    (a) Transener,  in which Citelec holds an approximately  65%
                    interest,  is the owner of the primary  transmission  system
                    that  services  Argentina  and  acts  as  operator  thereof.
                    Transener itself owns a regional  transmission  system owner
                    in Argentina (Transba) and is engaged in the construction of
                    a cross-country transmission line.

          b.   Teldata International Limited is a holding company for US billing
               and energy service operations.

               i.   Teldata  Inc.  is  a  Delaware   corporation  that  provides
                    complete,  end-  to-end,   automated  metering  and  billing
                    solutions for electric,  gas and water  utilities and energy
                    service providers.


<PAGE>

                    (1)  FirstPoint  Services  Inc.  is a  Delaware  corporation
                    engaged  in  providing   billing   software   solutions  for
                    electric,   gas  and  water  utilities  and  energy  service
                    providers.

          c.   National  Grid USA  Inc.  is a  Delaware  corporation  formed  to
               investigate  potential  opportunities  in  the  U.S.  market  for
               National Grid.

          d.   National  Grid  (Isle of Man)  Limited is a holding  company  for
               operations  on the Isle and is  organized  under  the laws of the
               Isle of Man.

               i.   Manx Cable Company (Isle of Man) is organized under the laws
                    of the Isle of Man for the purpose of developing an undersea
                    connector between England and the Isle of Man.

          National Grid International does not directly or indirectly derive any
          part of its income from the  generation,  transmission or distribution
          of electric  energy for sale or the  distribution at retail of natural
          or manufactured  gas for heat,  light or power within the U.S. None of
          National Grid  International  or its  subsidiaries is a public utility
          company  operating  in the U.S.  On or prior  to  consummation  of the
          Merger,  National Grid  International  and certain of its subsidiaries
          will be qualified as a "foreign utility company" within the meaning of
          the Act and it and its  subsidiaries  may be retained by National Grid
          Group pursuant to the provisions of Section 33(c) of the Act.

     4.   The  National  Grid Group  Quest  Trustee  Company  Limited  serves as
          trustee  with  respect to the  National  Grid Group  Qualifying  Share
          Trust,  which is a trust  established  for  employees of National Grid
          Group.  This  company  does  not  have  any  independent   operations.
          Applicants  note that a number of registered  holding  companies  have
          formed or been  permitted to retain or invest in separate  entities in
          connection with employee benefit  programs.  See New Century Energies,
          Inc., Holding  Co.  Act  Release  No.  26748  ) (Aug.  1,  1997)
          (retention  of   subsidiary   holding  life   insurance   policies  of
          executives);  Northeast  Utilities,  Holding Co. Act Release No. 24372
          (April 15, 1987)  (authorizing  acquisition of common stock of insurer
          to  facilitate  obtaining  directors and officers  insurance);  In the
          Matter of  General  Public  Utilities  Corporation,  Holding  Co.  Act
          Release No. 7092 (Dec. 23, 1996) (authorizing acquisition of shares of
          non-utility  subsidiary  engaged in administering  employee  insurance
          plans).  Thus,  retention  of  this  entity  is  consistent  with  the
          provisions of the Act.

     5.   NGC Telecoms  Holding  Limited is a holding  company for National Grid
          Group's interest in certain telecommunications operations.

          a.   NGG Telecoms  Limited also serves to hold  National  Grid Group's
               interest in these telecommunications operations.


<PAGE>


               i.   Energis plc is the publicly-traded parent company of Energis
                    Communications.  National Grid Group holds a 48.3%  interest
                    in Energis plc.

                    (1)  Energis  Communications  Limited  owns and  operates an
                    advanced  telecommunications network that is astride the NGC
                    transmission network. The Energis network transfers data, by
                    voice, picture or data-base, throughout England and Wales.

          b.   NGG Telecoms  Investment  Limited is an internal  holding company
               for part of National Grid Group's interest in Energis plc.

               NGG   Telecoms   is    indirectly    engaged    exclusively    in
               telecommunications  services,  information  services and services
               related or incidental thereto. On or prior to consummation of the
               Merger,  NGG Telecoms and its  subsidiaries  will qualified as an
               exempt telecommunications entity within the meaning of Section 34
               of the Act and, as a result,  retention  of NGG  Telecoms and its
               subsidiaries will be expressly  authorized under Section 34(d) of
               the Act.

     6.   NatGrid  Finance  Holdings  Limited is a holding  company  for NatGrid
          Finance Limited, NG Investment Limited and Natgrid Investments Limited
          which  are  Jersey  corporations  that  provide  financial  management
          services to National Grid Group. For example,  this group of companies
          is currently  involved in investing and managing the proceeds from the
          recent public  offering by National Grid Group of some of its interest
          in the ordinary  shares of Energis  plc. A number of other  registered
          holding   companies   hold   subsidiaries   that   perform   financing
          transactions  for the system.  See Central and Southwest  Corporation,
          Holding  Co.  Act  Release  No.  23767  (July 19,  1985)  (authorizing
          formation of subsidiary to provide  factor  intrasystem  receivables);
          Ameren Corporation,  Holding Co. Act Release No. 26809 (Dec. 30, 1997)
          (permitting retention of subsidiary engaged in investing in securities
          for systems companies).



THE NATIONAL GRID GROUP plc
GROUP HISTORICAL COST BALANCE SHEET
At 30 September 1998

<TABLE>
<CAPTION>
                                                        At 30 September              At 31 March
                                                     1998            1997               1998
                                                                  (as restated)     (as restated)
                                                       (pound)m       (pound)m         (pound)m
<S>                                                   <C>            <C>             <C>    
Fixed assets
Tangible assets                                          2,784.8        3,022.0         2,711.4
Investments                                                313.5           42.6           326.9
                                                         -------        -------         -------
                                                         3,098.3        3,064.6         3,038.3
                                                         -------        -------         -------
Current assets
Stocks                                                      14.2           12.0            12.5
Debtors                                                    186.5          174.3           321.5
Investment                                                   0.1            0.1             0.1

Cash and deposits                                           54.3          335.2            49.9
                                                         -------        -------         -------
                                                           255.1          521.6           384.0

Creditors (due within one year)                           (955.1)      (1,090.6)       (1,097.2)
                                                         -------        -------         -------
Net current liabilities                                   (700.0)        (569.0)         (713.2)
                                                         -------        -------         -------
Total assets less current liabilities                    2,398.3        2,495.6         2,325.1
Creditors (due after more than one year)                (1,328.0)        (850.3)       (1,320.5)
Provisions for liabilities and charges                     (56.6)        (134.4)          (75.2)
                                                         -------        -------         -------
Net assets employed                                      1,013.7        1,510.9           929.4
                                                         =======        =======         =======


Capital and reserves
Called up share capital                                    173.5          171.8           173.5
Share premium account                                      232.7          187.7           232.7
Profit and loss account                                    607.5        1,151.4           523.2
                                                         -------        -------         -------

Shareholders' funds                                      1,013.7        1,510.9           929.4
                                                         =======        =======         =======
Net debt                                                 1,507.4          696.8         1,465.3

</TABLE>





THE NATIONAL GRID GROUP plc
GROUP HISTORICAL COST PROFIT AND LOSS ACCOUNT
Six months ended 30 September 1998


<TABLE>
<CAPTION>
                                                                                                              Year ended
                                                                                 Six months ended              31 March
                                                                                   30 September                  1998

                                                                              1998            1997
                                                                                          (as restated)     (as restated)
                                                                    Notes   (pound)m        (pound)m          (pound)m
<S>                                                                <C>    <C>              <C>               <C>
Group turnover

- - Continuing operations                                                       748.6            718.1           1,519.3
- - Discontinued operations                                                       -               62.0              90.1
                                                                            -------          -------           -------
                                                                     3        748.6            780.1           1,609.4
Operating costs                                                              (463.1)          (523.8)         (1,069.4)
                                                                            -------          -------           -------
Operating profit/(loss)

- - Continuing operations                                                       285.5            277.4             568.4
- - Discontinued operations                                                       -              (21.1)            (28.4)
                                                                            -------          -------           -------
Operating profit of Group undertakings                               3        285.5            256.3             540.0
Share of operating profit in joint ventures                                     6.6              2.6               5.4
Share of operating loss in associate                                           (7.8)             -                (4.1)
                                                                            -------          -------           -------
Total operating profit                                                        284.3            258.9             541.3
Exceptional profit relating to Energis                                          -               -                107.1
Net interest                                                         4        (63.4)           (33.7)            (75.8)
                                                                            -------          -------           -------
Profit on ordinary activities before taxation                                 220.9            225.2             572.6
Taxation                                                             5        (59.6)           (64.5)           (133.5)
                                                                            -------          -------           -------
Profit on ordinary activities after taxation                                  161.3            160.7             439.1
Dividends
- - Ordinary                                                                    (77.0)           (83.0)           (189.2)
- - Special                                                                       -               -               (768.6)
                                                                            -------          -------           -------
                                                                     6        (77.0)           (83.0)           (957.8)
                                                                            -------          -------           -------
Retained profits/(loss)                                                        84.3             77.7            (518.7)
                                                                            =======          =======           =======
Earnings per ordinary share
- - Basic - On profit for the period                                   7         11.0p             9.4p             26.0p
- - On adjusted profit for the period*                                 7         11.0p             9.4p             19.7p
- - Diluted - On profit for the period                                 7         10.8p             9.3p             25.8p
          - On adjusted profit for the period*                       7         10.8p             9.3p             19.5p
* Adjusted profit excludes the exceptional profit relating
     to Energis
Dividends per ordinary share (net)
- - Ordinary                                                           6         5.25p             4.83p            12.07p
- - Special                                                                       -                 -               44.70p
                                                                     7
</TABLE>



<PAGE>



THE NATIONAL GRID GROUP plc
SUMMARIZED GROUP CASH FLOW STATEMENT
Six months ended 30 September 1998


<TABLE>
<CAPTION>

                                                                           Six months ended          Year ended
                                                                             30 September             31 March

                                                                          1998            1997           1998
                                                                Notes   (pound)m        (pound)m       (pound)m
<S>                                                          <C>       <C>             <C>            <C>
Net cash inflow from operating activities                       8(a)(b)   261.9           297.9           627.2

Net cash (outflow)/inflow for returns on investments
and servicing of finance                                                  (59.6)            7.8           (31.3)

Corporate tax (paid)/refund                                               (78.2)            0.4          (138.2)
(including advance corporation tax)

Net cash outflow for capital expenditure                        8(b)     (161.6)         (126.9)         (286.4)
Net cash (outflow)/inflow from acquisitions  and
disposals                                                                    -            (29.9)          157.8

  Ordinary dividends                                                         -               -           (197.7)
  Special dividend                                                           -               -           (768.6)
                                                                         -------         -------         -------
Equity dividends paid                                                        -               -           (966.3)
                                                                         -------         -------         -------
Net cash (outflow)inflow before management of
liquid resources and financing                                            (37.5)          149.3          (637.2)

Net cash (outflow)/inflow from the management of
liquid resources                                                           (5.3)          (62.9)          217.0

  Issue of ordinary shares                                                  0.6             1.3             5.8
  New borrowings                                                          138.3             2.6           707.4
  Borrowings repaid                                                      (111.2)           (1.2)         (209.3)
                                                                         -------         -------         -------
Net cash inflow from financing                                             27.7             2.7           503.9
                                                                         -------         -------         -------
Movement in cash and overdrafts                                           (15.1)           89.1            83.7
                                                                         =======         =======         =======
</TABLE>






                                       -2-

<PAGE>


THE NATIONAL GRID GROUP plc
GROUP STATEMENT OF TOTAL RECOGNIZED GAINS AND LOSSES
Six months ended 30 September 1998


<TABLE>
<CAPTION>

                                                                               Six months ended                Year ended
                                                                                 30 September                   31 March

                                                                              1998             1997                1998
                                                            Notes           (pound)m         (pound)m            (pound)m
                                                                                           (as restated)       (as restated)
<S>                                                       <C>              <C>            <C>                <C> 
Profit after taxation*                                                       161.3             160.7               439.1
                                                                                              =======             =======
Prior period adjustment                                       1               40.8
                                                                            -------
Total recognized gains and losses since last annual
report                                                                       202.1
                                                                            =======
</TABLE>


* There are no recognized gains and losses relating to the period other than the
profit for the period.


RECONCILIATION OF MOVEMENT IN SHAREHOLDERS' FUNDS
Six months ended 30 September 1998


<TABLE>
<CAPTION>
                                                                   Six months ended                       Year ended
                                                                     30 September                          31 March
                                                                1998                  1997                    1998
                                                                                 (as restated)           (as restated)
                                                              (pound)m              (pound)m                (pound)m
<S>                                                        <C>                   <C>                    <C> 
Profit after taxation                                          161.3                 160.7                    439.1
Dividends
- - Ordinary                                                     (77.0)                (83.0)                  (189.2)
- - Special                                                        -                     -                     (768.6)
                                                             --------              --------                 --------
                                                               (77.0)                (83.0)                  (957.8)

                                                                84.3                  77.47                  (518.7)
Issue of ordinary shares                                          -                    1.3                     16.2
                                                             --------              --------                 --------

Net increase/(decrease) in shareholders' funds                  84.3                  79.0                   (502.5)
Shareholders' funds at start of period                         929.4*              1,431.9                  1,431.9
                                                             --------              --------                 --------
Shareholders' funds at end of period                         1,013.7               1,510.9                    929.4
                                                             ========              ========                 ========
</TABLE>


* originally (pound)888.6m before adding prior period adjustment of (pound)40.8m


                                       -3-


THE NATIONAL GRID GROUP plc
NOTES

1.   Prior period adjustment
The  adoption  of  Financial  Reporting  Standard  12  "Provisions,   Contingent
Liabilities  and  Contingent  Assets"  (FRS 12) has  resulted in a change in the
method of accounting for provisions. This change in accounting policy, which has
the effect of reducing operating profit of Group undertakings for the six months
ended 30 September 1998 by (pound)1.0m,  has been reflected in the accounts as a
prior period adjustment in accordance with Financial  Reporting Standard 3. As a
result,  shareholders'  funds at 30  September  1997 and 31 March 1998 have been
increased by  (pound)41.9m  and  (pound)40.8m  respectively  and the comparative
amounts of operating  profit of Group  undertakings  for the six months ended 30
September 1997 and the year ended 31 March 1998 have been reduced by (pound)1.1m
and (pound)2.2m  respectively.  A change in accounting  estimates as a result of
implementing FRS 12 is included in note 3.

2.   Basis of preparation
The financial information contained in this announcement has, with the exception
of the change in accounting  policy  resulting  from the adoption of FRS 12 (see
note 1), been  prepared on the basis of the  accounting  policies set out in the
Annual  Report  and  Accounts  for the year  ended  31  March  1998 and does not
constitute  statutory  accounts as defined in Section 240 of the  Companies  Act
1985.  The financial  information in respect of the year ended 31 March 1998 has
been derived from the statutory accounts for the year ended 31 March 1998, which
have been delivered to the Registrar of Companies. The auditors' report on these
statutory accounts was unqualified and did not contain a statement under Section
237(2) or (3) of the Companies Act 1985. The financial information in respect of
the six months ended 30 September 1998 is unaudited but has been reviewed by the
auditors and their report is set out on page 14.

3.   Segmental analysis


<TABLE>
<CAPTION>
                                                     Six months ended                      Year ended
                                                       30 September                         31 March

                                                 1998                1997                      1998
                                               (pound)m            (pound)m                  (pound)m
<S>                                           <C>                 <C>                      <C>
a) Turnover - continuing operations
Transmission                                     588.0               589.3                    1,225.2
Interconnectors                                   29.9                32.1                       75.7
Ancillary Services                                58.4                54.7                      118.7
Other activities                                  90.6                68.8                      153.7
Sales between businesses                         (18.3)              (16.4)                     (35.6)
                                                -------             -------                   --------
                                                 748.6               728.5                    1,537.7
Sales to discontinued operations                    -                (10.4)                     (18.4)
                                                -------             -------                   --------
                                                 748.6               728.5                    1,537.7


Discontinued operations:
Energis                                             -                 69.2                      103.0
Sales to continuing operations                      -                 (7.2)                     (12.9)
                                                -------             -------                   --------
                                                    -                 62.0                       90.1
                                                -------             -------                   --------
Group turnover                                   748.6               780.1                    1,609.4
                                                =======             =======                   ========
</TABLE>




<PAGE>




THE NATIONAL GRID GROUP plc
NOTES
<TABLE>
<CAPTION>

                                                              Six months ended                      Year ended
                                                                30 September                         31 March

                                                          1998                1997                      1998
                                                        (pound)m            (pound)m                  (pound)m
<S>                                                     <C>                 <C>                      <C>
3.  Segmental Analysis (Cont.)

b) Operating profit - continuing operations
Transmission                                              248.8               257.1                      519.7
Interconnectors                                            11.2                13.3                       36.2
Ancillary Services                                          0.1                 0.1                        0.2
Other activities                                           25.4*                6.9                       12.3
                                                         -------             -------                   --------
                                                          285.5               277.4                      568.4
                                                         -------             -------                   --------
Discontinued operations:
Energis                                                      -                (21.1)                     (28.4)
                                                         -------             -------                   --------
Operating profit of Group undertakings                    285.5               256.3                      540.0
                                                         =======             =======                   ========
</TABLE>



*    Includes  (pound)15.2m  relating to a revision of  accounting  estimates of
     provisions resulting from the implementation of FRS 12.


4.  Net Interest

<TABLE>
<CAPTION>

                                                              Six months ended                    Year ended 31
                                                                30 September                           March
                                                           1998                  1997                   1998
                                                         (pound)m              (pound)m               (pound)m
<S>                                                     <C>                   <C>                    <C> 
Interest payable and similar charges                       59.8                   41.9                    96.8
Interest receivable and similar income                     (4.3)                  (9.5)                  (27.1)
                                                         -------                -------                 -------
                                                           55.5                   32.4                    69.7
Joint ventures and associate                                7.9                    1.3                     6.1
                                                         -------                -------                 -------
                                                           63.4                   33.7                    75.8
                                                         =======                =======                 =======
</TABLE>



5.   Taxation
The tax  charge  for the six  months  ended  30  September  1998 is based on the
estimated effective tax rate for the year ending 31 March 1999.

6.   Dividends
The interim  dividend of 5.25p (net of the  associated  tax credit) per ordinary
share  (1997:  4.83p) will be paid on 15 February  1999 to  shareholders  on the
register on 4 December 1998.


                                       -2-

<PAGE>


THE NATIONAL GRID GROUP plc
NOTES

7.   Earnings per ordinary share

Basic  earnings per ordinary share for the six months ended 30 September 1998 of
11.0p  (1997:  9.4p)  is  calculated  based  on the  profit  after  taxation  of
(pound)161.3m (1997: (pound)160.7m) and 1,466.0m shares (1997 : 1,716.8m), being
the weighted average number of ordinary shares in issue during the period.

For the purposes of  calculating  diluted  earnings per ordinary  share,  profit
after taxation and the weighted  average number of ordinary  shares in issue are
adjusted for the effects of all dilutive potential of ordinary shares.

8.       Summarized Group cash flow statement

<TABLE>
<CAPTION>
                                                               Six months ended                      Year ended
                                                                 30 September                         31 March

                                                           1998                   1997                   1998
                                                                             (as restated)          (as restated)
                                                        (pound)m               (pound)m               (pound)m
<S>                                                    <C>                  <C>                     <C> 
a) Net cash inflow from operating activities
Operating profit of Group undertakings                    285.5                  256.3                   540.0

Depreciation charge                                        63.0                   85.8                   159.6
Profit on disposal of tangible fixed assets                (3.1)                  (2.9)                   (4.1)
Increase in stocks                                         (1.7)                  (2.9)                   (3.4)
Increase in debtors                                        (4.2)                 (25.1)                  (35.2)
(Decrease)/increase in creditors                          (60.1)                   3.0                    20.7
Decrease in provisions                                    (18.6)                 (13.6)                  (49.0)
Other                                                       1.1                   (2.7)                   (1.4)
                                                         -------                -------                 -------
                                                          (23.6)                  41.6                    87.2
                                                         -------                -------                 -------
                                                          261.9                  297.9                   627.2
                                                         =======                =======                 =======
</TABLE>



b)   Net cash inflow from operating  activities and net cash outflow for capital
     expenditure  include  (pound)nil  (1997 : cash  outflow  (pound)12.8m)  and
     (pound)nil  (1997 :  (pound)54.2m)  respectively  relating to  discontinued
     operations.



                                       -3-



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