Exhibit 99.6

                                                                EXECUTION COPY


            FIRST AMENDMENT TO OPTION AND PURCHASE AND SALE AGREEMENT



     This  FIRST  AMENDMENT  TO OPTION AND  PURCHASE  AND SALE  AGREEMENT  (this
"Amendment")  is made and  entered  into as of March 22,  2007,  by and  between
KEYSPAN GENERATION LLC, a limited liability company organized and existing under
the laws of the  State of New York  ("Seller",  and also  referred  to herein as
"Genco"), and LONG ISLAND LIGHTING COMPANY d/b/a LIPA, a wholly-owned subsidiary
of Long Island  Power  Authority,  a  corporate  municipal  instrumentality  and
political  subdivision of the State of New York  ("Buyer",  and also referred to
herein as "LIPA").

                                    RECITALS

     WHEREAS,  Seller  and Buyer  have  previously  entered  into an Option  and
Purchase  and Sale  Agreement,  dated as of  January  1, 2006 and as  amended by
letter  agreement,  dated as of  December  11,  2006 (the  "Option  Agreement"),
pursuant to which Seller has granted  Buyer an option to purchase one or both of
the Far Rockaway Plant and the E.F.  Barrett Plant (as such terms are defined in
the Option Agreement);

     WHEREAS,  concurrently with the execution of the Option  Agreement,  Seller
and Buyer and,  as  applicable,  certain  of their  respective  Affiliates  have
entered  into a  Settlement  Agreement  and Release and an Amended and  Restated
Management Services  Agreement,  each dated as of January 31, 2006 (collectively
with the Option Agreement, the "2006 Agreements");

     WHEREAS,  concurrently  with  the  execution  of  this  Amendment  and as a
condition  to the  effectiveness  hereof,  Seller and Buyer and, as  applicable,
certain of their  respective  Affiliates,  are entering into an Amendment to the
Amended and Restated  Management  Services  Agreement (the "MSA Amendment"),  an
Agreement and Waiver (the "Waiver Agreement"),  a Second Option and Purchase and
Sale  Agreement  (the  "Second  Option  Agreement")  and certain  other  related
agreements referred to therein (collectively, the "National Grid Agreements");

     WHEREAS, on February 25, 2006 National Grid plc ("National Grid"), National
Grid US8 Inc. and KeySpan  Corporation entered into a certain Agreement and Plan
of Merger (the "NG/KES  Merger  Agreement")  pursuant to which National Grid US8
Inc.,  a  wholly-owned  subsidiary  of National  Grid,  will merge with and into
KeySpan  Corporation,  with  KeySpan  Corporation  as the  surviving  entity and
thereby  becoming a wholly owned  subsidiary  of National  Grid (the  "Merger"),
subject to the terms and conditions of the NG/KES Merger Agreement; and

     WHEREAS,  as provided in the Waiver  Agreement,  in consideration  for LIPA
entering into the Waiver Agreement,  Seller,  among other things,  has agreed to
amend the Option  Agreement to (a) extend the Expiration Date (as defined in the
Option Agreement) and (b) grant LIPA the option to purchase the ICUs and related
assets on the same terms and conditions as those  applicable to the E.F. Barrett
Plant and the Far Rockaway Plant.

     NOW, THEREFORE, in consideration of the premises and of such other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, the parties hereto intending to be legally bound agree as follows:





1.   Defined  Terms.  Capitalized  terms used and not otherwise  defined  herein
     shall  have  the  respective  meanings  ascribed  to  them  in  the  Option
     Agreement.

2.   First Recital. The first recital to the Option Agreement is amended to read
     in its entirety as follows:

          "WHEREAS,  Seller is the owner of the Far  Rockaway  Plant (as defined
     herein),  the E.F.  Barrett  Plant  (as  defined  herein)  and the ICUs (as
     defined herein) (together, the "Generating Facilities");"

3.   Second  Recital.  The second recital to the Option  Agreement is amended to
     read in its entirety as follows:

          "WHEREAS, Seller is willing to grant LIPA an option to purchase one or
     more  of  the  Generating  Facilities,  on the  terms  and  subject  to the
     conditions set forth herein; and"

4.   Definitions.

a.   The  definition  of  "Business"  contained  in  Section  1.1 of the  Option
     Agreement is amended to read in its entirety as follows:

          "Business"  means,  with  respect  to one or  more  of the  Generating
     Facilities that are part of the Purchased Assets, the business of operating
     such Generating Facilities as they are operated on the date hereof."

b.   The definition of "Emission Credits" contained in Section 1.1 of the Option
     Agreement is amended to read in its entirety as follows:

          "Emission   Credits"  means  the  allowances  and  credits  issued  or
     certified pursuant to the Federal Clean Air Act or analogous  provisions of
     the  Laws of the  State  of New  York  or  other  regional  or  local  laws
     authorizing  the emission of fixed  quantities of SO2, NOx or CO2 and other
     emission  compounds,  to the extent attributable to the Purchased Assets as
     of the Closing Date."

c.   The  following  new  definition  is  added  to  Section  1.1 of the  Option
     Agreement:

          "National Grid/KeySpan Closing Date" has the meaning assigned to it in
     Section 2.3."

d.   The definition of "Purchased Assets" contained in Section 1.1 of the Option
     Agreement is amended to read in its entirety as follows:

          "Purchased Assets" means one or more of the Generating Facilities,  as
     specified in the Option Notice delivered by Buyer hereunder,  together with
     the Additional Assets related to such specified Generating Facilities."


                                       2



e.   The  definition  of  "Threshold"  contained  in  Section  1.1 of the Option
     Agreement is amended to read in its entirety as follows:

          "Threshold"  means  (i)  if  all  of  the  Generating  Facilities  are
     purchased by Buyer,  $600,000,  (ii) if only the E.F. Barrett Plant and the
     ICUs are purchased by Buyer,  $500,000 (iii) if only the E.F. Barrett Plant
     and the Far Rockaway Plant are purchased by Buyer, $500,000 or (iv) if only
     E.F.  Barrett  Plant or the Far  Rockaway  Plant  is  purchased  by  Buyer,
     $250,000."

5.   Purchase Option.  Section 2.1 of the Option Agreement is amended to read in
     its entirety as follows:

          "Section 2.1. Purchase Option.  Subject to the terms and conditions of
     this  Amendment,  Seller  hereby grants to Buyer an  irrevocable  option to
     purchase  the  Generating  Facilities,  or any of them,  together  with the
     related Additional Assets and the Assumed Liabilities (the "Option")."

6.   Exercisability.  Section 2.3 of the Option  Agreement is amended to read in
     its entirety as follows:

          "Section  2.3.  Exercisability.  Subject to the further  terms of this
     Agreement, the Option shall become exercisable at any time after January 1,
     2006;  provided,  however,  the Option  with  respect to the ICUs shall not
     become  exercisable  unless Buyer has  exercised the Option with respect to
     the E.F. Barrett Plant. The Option shall expire and cease to be exercisable
     at 3:00 p.m. on the date which (i) with respect to the E.F.  Barrett  Plant
     and the ICUs,  is May 31,  2008 and (ii) with  respect to the Far  Rockaway
     Plant, is May 31, 2008 (each of (i) and (ii) being an "Expiration Date")."

7.   Method of Exercise.  Section 2.4 of the Option Agreement is amended to read
     in its entirety as follows:

          "Section  2.4.  Method of Exercise.  The Option may be exercised  with
     respect  to one or  more  Generating  Facilities  only by the  giving  of a
     written  notice by Buyer (the  "Option  Notice") to the Seller in such form
     and in such manner as is  prescribed  in Section 7.1 herein,  setting forth
     which of the Generating  Facilities,  or all of them,  Buyer has elected to
     purchase.  If Buyer delivers an Option Notice with respect to less than all
     of  the  Generating  Facilities  prior  to the  Expiration  Date  for  such
     Generating  Facilities,  it may  subsequently  deliver  one or more  Option
     Notices with respect to one or both of the other  Generating  Facilities by
     the  delivery  of an Option  Notice to the  Seller at any time prior to the
     Expiration Date for such other Generating  Facilities;  provided,  that, in
     such event, the parties shall prior to the relevant Closing Date enter into
     a new Energy  Management  Agreement  Amendment  (substantially  in the form


                                       3



     attached  hereto as Exhibit E) and a new Power Supply  Agreement  Amendment
     (substantially  in the form  attached  hereto as Exhibit D) to replace  any
     already  signed,  in order to reflect such  additional  Option Notice,  and
     enter into an Operation and  Maintenance  Agreement  (substantially  in the
     form attached hereto as Exhibit C) with respect to each Generating Facility
     that is the subject of such  additional  Option Notice.  Each Option Notice
     must be accompanied  by a  certification  by an authorized  officer of LIPA
     that the exercise of the Option has been affirmatively approved by the vote
     of the LIPA Board of Trustees."

8.   Exercise  Date.  Section 2.5 of the Option  Agreement is amended to read in
     its entirety as follows:

          "Section 2.5.  Exercise  Date. The date of each exercise of the Option
     with  respect  to one or more  Generating  Facilities  shall be the date on
     which the Option  Notice is  delivered to Seller at its address as provided
     in Section 7.1 of this Agreement (each an "Exercise Date")."

9.   Effect of Option Notice.  Section 2.6 of the Option Agreement is amended to
     read in its entirety as follows:

          Section 2.6. Effect of Option Notice. Upon receipt of an Option Notice
     by  Seller,  Buyer and  Seller  shall be legally  bound to  consummate  the
     transactions  contemplated with respect to the Generating  Facilities which
     are the subject of such Option Notice  subject to (i) the  satisfaction  or
     waiver of each of the conditions  precedent set forth in Article VI hereof,
     including,  without limitation,  receipt of all Buyer Required Governmental
     Approvals, and (ii) all of the other terms and conditions hereof.

10.  Closing Date. Section 2.7 of the Option Agreement is amended to read in its
     entirety as follows:

          Section 2.7.  Closing Date.  With respect to each Option  Notice,  the
     closing date of the sale,  conveyance,  assignment  and transfer by Seller,
     and the purchase by Buyer, of the related Purchased Assets pursuant to this
     Agreement and the other transactions contemplated hereby will be a date, as
     mutually agreed by the parties,  following  satisfaction (or waiver) of all
     conditions  precedent  to closing  set forth in Article VI (each a "Closing
     Date"),  which date shall not be later than  one-hundred  twenty (120) days
     following such satisfaction (or waiver), at a location to be agreed upon by
     the parties hereto following the applicable Exercise Date. The Closing Date
     may be extended by the written agreement of the parties hereto.

11.  Assignment  and  Assumption.  Subsection  (b) of Section  2.9 of the Option
     Agreement is amended to read in its entirety as follows:

          "(b) Excluded  Liabilities.  Pursuant to the Assignment and Assumption
     Agreement,  Seller shall retain (i) all liabilities and obligations related
     to the Purchased  Assets which relate to periods prior to the Closing Date,


                                       4



     other than the Assumed  Liabilities,  (ii) all liabilities and obligations,
     including environmental  liabilities,  relating to the Excluded Assets, and
     (iii) all  liabilities  and  obligations  it has  assumed  under the Merger
     Agreement  and the Power Supply  Agreement  with  respect to the  Purchased
     Assets, including,  without limitation,  liabilities regarding manufactured
     gas plant sites (all such  liabilities and  obligations  retained by Seller
     being collectively, the "Excluded Liabilities")."

12.  Exercise  Date.  Section 3.1 of the Option  Agreement is amended to read in
     its entirety as follows:

          Section 3.1. Net Book Value; Preliminary Purchase Price.

          (a) Not later than  thirty (30) days  following  the  Effective  Date,
     Seller shall  provide  Buyer with  Seller's  determination  of the Net Book
     Value of each Generating  Facility and the Additional Assets as of the date
     of the most recent audited  financial  statements based on Seller's audited
     financial  statements  as of such date (the  "Reference  Net Book  Value"),
     together with the working papers of Seller and Seller's  independent public
     accountants relating to the Reference Net Book Value. Seller will also make
     its representatives and independent public accountants reasonably available
     from time to time during normal  business  hours to address  questions with
     respect thereto raised by Buyer and Buyer's representatives.

13.  Additional Agreements.

a.   Subsection (b) of Section 5.2 of the Option Agreement is amended to read in
     its entirety as follows:

          "(b) Easements.  On the Closing Date, pursuant to one or more Easement
     Agreements, as appropriate,  Buyer shall grant to Seller and its Affiliates
     irrevocable  and  perpetual  easements  on each of the  sites  and  related
     parcels of each  Generating  Facility  within the  Purchased  Assets to the
     extent necessary for the continued operation and maintenance of, and access
     to,  (i) if the ICUs are not part of the  Purchased  Assets,  the ICUs and,
     (ii) to the extent necessary, the other Excluded Assets."

b.   Subsection (d) of Section 5.2 of the Option Agreement is amended to read in
     its entirety as follows:

          "(d) Emission Credits.

          (i) To the extent  Emission  Credits  are not  required to satisfy the
     compliance  obligations of the Purchased  Assets,  such  Emissions  Credits
     shall be pooled with those  attributable to Seller's  remaining  generating
     stations under the Power Supply Agreement (for the term of the Power Supply
     Agreement)  and such pooled  credits  shall be applied pro rata to all such
     generating  stations to meet their compliance  obligations under applicable
     Law,  provided that if Buyer exercises the Option with respect to more than


                                       5



     one of the Generating  Facilities,  excess Emission Credits from one of the
     Generating  Facilities  shall  first be  applied  to the  other  Generating
     Facility  or  Generating  Facilities  purchased  by  Buyer  to  the  extent
     necessary to meet its compliance  obligations  under applicable Law. If any
     Emissions  Credits  attributable to the Purchased Assets are sold after the
     Closing  Date,  Buyer shall be  entitled  to 100% of the net sale  proceeds
     therefrom.

          (ii)  In the  event  Buyer  sells  or  transfers  one or  more  of the
     Generating  Facilities  that  constitute  Purchased  Assets,  the  Emission
     Credits related to such Generating  Facilities  shall remain subject to the
     provisions  of this  Agreement  with  respect  to the use of such  Emission
     Credits  for  Seller's  remaining  generating  stations,  and Buyer  hereby
     covenants  to  provide  therefor  in any  agreement  for any  such  sale or
     transfer to the satisfaction of Seller."

14.  Schedule I.  Schedule I to the Option  Agreement is deleted in its entirety
     and replaced by a new Schedule I in the form attached hereto as Annex A.

15.  Schedule II. Schedule II to the Option Agreement is deleted in its entirety
     and replaced by a new Schedule II in the form attached hereto as Annex B.

16.  Schedule V.  Schedule V to the Option  Agreement is deleted in its entirety
     and replaced by a new Schedule V in the form attached hereto as Annex C.

17.  Form of Operation  and  Maintenance  Agreement.  The form of Operation  and
     Maintenance  Agreement  attached  as Exhibit C to the Option  Agreement  is
     deleted in its entirety and replaced by the form thereof  attached as Annex
     D hereto.

18.  Form  of  Power  Supply  Agreement  Amendment.  The  form of  Power  Supply
     Agreement  Amendment  attached  as  Exhibit D to the  Option  Agreement  is
     deleted in its entirety and replaced by the form thereof  attached as Annex
     E hereto.

19.  Form  of  Energy  Management  Agreement  Amendment.   The  form  of  Energy
     Management  Agreement  attached  as  Exhibit E to the Option  Agreement  is
     deleted in its entirety and replaced by the form thereof  attached as Annex
     F hereto.

20.  Effective Time of Amendment.  This Amendment  shall become legally  binding
     and effective only upon  satisfaction  of each of the following  conditions
     precedent (the date upon which all such conditions are satisfied, being the
     "Effective Date"):

          a. Approvals  reasonably  satisfactory  to National Grid and LIPA from
     the New York State  Comptroller and the New York State Attorney General (as
     to form) of this Amendment and each of the other  National Grid  Agreements
     shall have been obtained and be in full force and effect;

          b. Each of the 2006 Agreements shall have become effective pursuant to
     their respective terms and be in full force and effect; and


                                       6



          c. The Merger shall have been consummated.

21.  Agreement  Remains  in  Force.  Except  as  expressly  set  forth  in  this
     Amendment, the Option Agreement remains unmodified.

22.  Headings.  The  headings  contained  in this  Amendment  are for  reference
     purposes only and shall not affect in any way the meaning or interpretation
     of this Amendment.

23.  Miscellaneous.  This  Amendment,  together with the Annexes annexed hereto,
     shall be binding  upon and inure to the benefit of the  parties  hereto and
     thereto and their respective  successors and permitted  assigns and are not
     intended to confer upon any other Person,  any rights or remedies hereunder
     or  thereunder  and  may be  executed  in two or  more  counterparts  which
     together shall constitute a single agreement.

24.  Governing  Law.  This  Amendment  shall be  governed  by and  construed  in
     accordance  with the law of the State of New York (without giving effect to
     conflict of law principles) as to all matters, including but not limited to
     matters of validity,  construction,  effect,  performance and remedies. THE
     PARTIES  HERETO  AGREE THAT VENUE IN ANY AND ALL  ACTIONS  AND  PROCEEDINGS
     RELATED  TO THE  SUBJECT  MATTER  OF THIS  AMENDMENT  SHALL BE IN THE STATE
     COURTS IN AND FOR NASSAU COUNTY,  NEW YORK OR THE FEDERAL COURTS IN AND FOR
     THE  EASTERN  DISTRICT  OF NEW YORK,  WHICH  COURTS  SHALL  HAVE  EXCLUSIVE
     JURISDICTION FOR SUCH PURPOSE, AND THE PARTIES HERETO IRREVOCABLY SUBMIT TO
     THE EXCLUSIVE JURISDICTION OF SUCH COURTS AND IRREVOCABLY WAIVE THE DEFENSE
     OF AN  INCONVENIENT  FORUM  TO  THE  MAINTENANCE  OF  ANY  SUCH  ACTION  OR
     PROCEEDING. SERVICE OF PROCESS MAY BE MADE IN ANY MANNER RECOGNIZED BY SUCH
     COURTS.  EACH OF THE PARTIES HERETO  IRREVOCABLY WAIVES ITS RIGHT TO A JURY
     TRIAL WITH  RESPECT TO ANY ACTION OR CLAIM  ARISING  OUT OF ANY  DISPUTE IN
     CONNECTION WITH THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.









                                       7




     IN WITNESS  WHEREOF,  the parties hereto have executed this Amendment as of
the day and year first above written.



                                KEYSPAN GENERATION LLC,
                                as Seller



                                By:  /s/John J. Bishar Jr.
                                     ---------------------
                                     Name:  John J. Bishar Jr.
                                     Title: Executive Vice President



                                LONG ISLAND LIGHTING COMPANY d/b/a LIPA,
                                as Buyer

                                By: /s/Richard M. Kessel
                                    --------------------
                                    Name:  Richard M. Kessel
                                    Title: CEO & President








                                       8





                                     ANNEX A

                                   Schedule I


                                Additional Assets
                                -----------------


1.   All furniture,  office supplies,  tools and other equipment  located at the
     Generating   Facilities,   other  than  facilities,   tools  and  equipment
     identified as Excluded Assets.

2.   All  telecommunications  facilities  located at the  Generating  Facilities
     relating primarily to the operation of the Generating Facilities.

3.   All  materials,  inventory,  and supplies,  and all related  agreements and
     purchase orders,  held by Seller as of the Closing Date, relating primarily
     to the Generating Facilities.

4.   All motor  vehicles  owned,  purchased  or  leased by Seller  that are used
     primarily in connection with the Generating Facilities.

5.   All  franchises,  permits and other  governmental  authorizations  relating
     primarily to the Generating Facilities.

6.   If the E.F.  Barrett Plant is part of the Purchased  Assets,  the following
     contracts:  (i) the lease arrangements related to the Flag Atlantic landing
     station  located  at the E.F.  Barrett  Plant;  (ii) the  Plantation  Motel
     license  agreement (small sign) with respect to the E.F. Barrett Plant; and
     (iii) all leases  with the  Nassau  County  Police  for  telecommunications
     equipment located at the E.F. Barrett Plant.

7.   If the Far Rockaway  Plant is part of the Purchased  Assets,  the following
     Contracts: all leases with T-Mobile for telecommunication equipment located
     at the Far Rockaway Plant.

8.   If the ICUs are part of the Purchased Assets, all assets relating primarily
     to the ICUs, including, without limitation:

     (a)  General Electric ("GE") Gas Turbines (Units 1-8);
     (b)  Pratt & Whitney Gas Turbines (Units 9-12);
     (c)  cranking motor breaker cubicles and generator breaker housings;
     (d)  GE Control Room;
     (e)  GE Warehouse;
     (f)  fuel forwarding skids;
     (g)  gas regulating station and associated piping;
     (h)  Pratt & Whitney engine/control room building;
     (i)  water wash skids;
     (j)  CO2 tanks and associated piping;
     (k)  Pratt & Whitney Warehouse;


                                      I-1




     (l)  Tank 101 and the associated dike and piping;
     (m)  Tank 102 (D.I. Water Tank) and the associated dike and piping;
     (n)  Tank 103 and the associated dike and piping;
     (o)  Engine shop and engine parts storage trailers;
     (p)  power recovery tank;
     (q)  No. 2 fuel unloading stations;
     (r)  office management trailer;
     (s)  technician shop / lunch room / employee locker room building;
     (t)  security guard building at front gate; and
     (u)  fire hose cabinets around site.

Items (a)-(u) are located  within the ICU easement  area  identified on Schedule
III.








                                      I-2





                                     ANNEX B

                                   Schedule II
                                   -----------

                                 Excluded Assets
                                 ---------------

1.   All KeySpan Energy Delivery Long Island ("KEDLI")  natural gas transmission
     and distribution assets located at the Generating  Facilities  (depicted on
     the attached surveys (Schedules III and IV)).

2.   All KeySpan Communications  Corporation's ("KCC") telecommunications assets
     located at the Generating Facilities, including:

     Far Rockaway
     ------------
     (a)  One (1) 96  strand  fiber  optic  cable  installed  overhead  from the
          property line to the telephone room (KCC Circuit No. F96204);
     (b)  Associated rack and fiber optic cable termination shelf/patch panel in
          the Power Station telephone room;
     (c)  One (1) Canoga Perkins 2262 T1 Modem and power supply; and
     (d)  One (1) Versitron/Milan M7245 Media Converter.

     E.F. Barrett
     ------------
     (a)  One (1) 96  strand  fiber  optic  cable  installed  overhead  from the
          property line to the telephone room (KCC Circuit No. F96-306A);
     (b)  One (1) 96  strand  fiber  optic  cable  installed  overhead  from the
          property line to the telephone room (KCC Circuit No. F96-306B);
     (c)  One (1) 96 strand fiber optic cable and  associated  manholes/conduits
          installed  underground  from the  property  line to the  FLAG  Telecom
          Landing Station (KCC Circuit No. F96-222);
     (d)  One (1) 96 strand fiber optic cable and  associated  manholes/conduits
          installed  underground  from the  property  line to the  FLAG  Telecom
          Landing Station (KCC Circuit No. F96-223);
     (e)  One (1) 96 strand fiber optic cable and  associated  manholes/conduits
          installed  underground  from the  property  line to the  FLAG  Telecom
          Landing Station (KCC Circuit No. F96-224);
     (f)  Five (5) 4" PVC  underground  duct  system  between  the FLAG  Telecom
          Landing  Station  and  the  LIRR  right-of-way  (southeast  corner  of
          property);
     (g)  One (1) Canoga Perkins 2262 T1 Modem and power supply;  (h) Associated
          rack and fiber optic cable termination  shelf/patch panel in the Power
          Station telephone room; and
     (i)  One (1) 12 strand  submarine  fiber optic cable and  associated  power
          cable owned by FLAG Telecom installed in the KCC duct bank between the
          FLAG Telecom Landing Station and the LIRR right-of-way described above
          (KCC Circuit No. F12-214).


                                      II-1




3.   The following  KeySpan  IT/communications  systems and equipment located at
     the Generating Facilities:

     Far Rockaway
     ------------
     (a)  Five (5) radio base stations/antennas (and related cabling) supporting
          Electric and Gas Operations (roof of main control building);
     (b)  Four  (4)   radios/antennas   (and   related   cabling)  for  Electric
          Distribution   Automation   communications   (roof  of  main   control
          building);
     (c)  One (1) CISCO 3640 Router and related equipment (main PBX room);
     (d)  One (1) CISCO 3524 Access Switch (main PBX room);
     (e)  One (1) CISCO 2950 Recorder Switch (main PBX room);
     (f)  One (1) CISCO 3524 Access Switch and related equipment (Admin Office);
     (g)  Avaya  Definity G3i PBX Telephone  system and related  equipment;  (h)
          Avaya Intuity Voicemail System and related equipment; (i) One (1) Call
          Detail Reporting Polecat Buffer Box; and (j) Avaya UPS System.

     E.F. Barrett
     ------------
     (a)  Five (5) radio base stations/antennas (and related cabling) supporting
          Electric and Gas Operations (roof of main control building);
     (b)  Four  (4)   radios/antennas   (and   related   cabling)  for  Electric
          Distribution   Automation   communications   (roof  of  main   control
          building);
     (c)  One (1) CISCO 3640 Router (Main Data Closet);
     (d)  One (1) CISCO 6006  Access  Switch and  related  equipment  (Main Data
          Closet);
     (e)  One (1) CISCO 3524 Access  Switch and related  equipment  (Waste Water
          Site);
     (f)  One (1) CISCO 3524 Access Switch and related equipment (I.C. Cabinet);
     (g)  One (1) CISCO 3524 Access Switch and related equipment (Control Room);
     (h)  One (1) CISCO 3524 Access Switch and related equipment (MSD Trailer);
     (i)  Avaya  Definity G3i PBX Telephone  system and related  equipment;
     (j)  Avaya Intuity Voicemail System and related equipment;
     (k)  One (1) Call Detail Reporting Polecat Buffer Box; and
     (l)  Avaya UPS System.

4.   If the ICUs are not  part of the  Purchased  Assets,  all  assets  relating
     primarily to the ICUs, including, without limitation:

     (a)  General Electric ("GE") Gas Turbines (Units 1-8);
     (b)  Pratt & Whitney Gas Turbines (Units 9-12);
     (c)  cranking motor breaker cubicles and generator breaker housings;
     (d)  GE Control Room;
     (e)  GE Warehouse;


                                      II-2




     (f)  fuel forwarding skids;
     (g)  gas regulating station and associated piping;
     (h)  Pratt & Whitney engine/control room building;
     (i)  water wash skids;
     (j)  CO2 tanks and associated piping;
     (k)  Pratt & Whitney Warehouse;
     (l)  Tank 101 and the associated dike and piping;
     (m)  Tank 102 (D.I. Water Tank) and the associated dike and piping;
     (n)  Tank 103 and the associated dike and piping;
     (o)  Engine shop and engine parts storage trailers;
     (p)  power recovery tank;
     (q)  No. 2 fuel unloading stations;
     (r)  office management trailer;
     (s)  technician shop / lunch room / employee locker room building;
     (t)  security guard building at front gate; and
     (u)  fire hose cabinets around site.

Items (a)-(u) are located  within the ICU easement  area  identified on Schedule
III.

5.   All materials,  inventory, tools, supplies, property rights, agreements and
     purchase orders, held for use in connection with any Excluded Asset.

6.   All motor  vehicles  owned,  purchased  or  leased by Seller  that are used
     primarily in connection with any Excluded Asset.

7.   All patents, copyrights,  trade secrets, proprietary information,  licensed
     software, manuals and other intellectual property that relates primarily to
     the Excluded Asset,  excluding all intellectual  property owned by Buyer as
     of the Closing Date.

8.   All  franchises,  permits and other  governmental  authorizations  relating
     primarily to any Excluded Asset.




                                      II-3






                                     ANNEX C

                                   Schedule V
                                   ----------

                               Disclosure Schedule
                               -------------------

A.   Consents and Approvals
     ----------------------

                               E.F. Barrett Plant

1.   Filings with and consents, approvals and other actions by the Nassau County
     Health Department  ("NCHD") as may be required for the issuance by the NCHD
     of an Article 11 permit in the name of Buyer.

2.   Filings with and consents, approvals and other actions by the Nassau County
     Fire  Marshall (the "NCFM") as may be required for the issuance by the NCFM
     of an Article 3 permit in the name of Buyer.

                               Far Rockaway Plant

1.   Filings with and consents, approvals and other actions by the New York City
     Fire  Department  (the  "NYCFD") as may be required for the transfer of any
     permits issued by the NYCFD and the designation  thereunder of Buyer as the
     owner of the Far Rockaway Plant.

2.   Filings with and consents, approvals and other actions by the New York City
     Department of  Environmental  Protection  (the "NYCDEP") as may be required
     for the  transfer  of the  discharge  permit  issued by the  NYCDEP and the
     designation thereunder of Buyer as the owner of the Far Rockaway Plant.

3.   Filings  with and  consents,  approvals  and other  actions by the New York
     State  Department  of  Environmental  Conservation  ("NYSDEC")  as  may  be
     required for the  transfer of the Long Island  wells  permit  issued by the
     NYSDEC  and the  designation  thereunder  of Buyer as the  owner of the Far
     Rockaway Plant.

                                      ICUs

1.   Filings with and consents, approvals and other actions by the Nassau County
     Health Department  ("NCHD") as may be required for the issuance by the NCHD
     of an Article 11 permit in the name of Buyer.

2.   Filings with and consents, approvals and other actions by the Nassau County
     Fire  Marshall (the "NCFM") as may be required for the issuance by the NCFM
     of an Article 3 permit in the name of Buyer.


                                      V-1




             Each of E.F. Barrett Plant, Far Rockaway Plant and ICUs

1.   Approval of the FERC  pursuant to Section 203 of the Federal  Power Act for
     the transfer of the Purchased Assets.

2.   Subdivision approvals as contemplated under Section 5.2(c).

3.   Consents from  third-parties as may be required for the transfer of leases,
     easements and other Contracts that are part of the Purchased Assets.

4.   Filings with and consents, approvals and other actions by the NYSDEC as may
     be required  for the  transfer of the New York State Title IV Acid Rain and
     Title V Air permits and the designation thereunder of Buyer as the owner of
     the Generating Facilities.

5.   Filings with and consents,  approvals and other actions of NYSDEC as may be
     required  for the transfer of the  Memorandum  of  Understanding  Regarding
     Voluntarily  Restricting  SO2 Allowance  Sales to Certain Upwind States and
     the  designation  thereunder  of  Buyer  as the  owner  of  the  Generating
     Facilities.

6.   Filings with and consents, approvals and other actions by the NYSDEC as may
     be  required  for the  issuance  by the  NYSDEC of New York  Chemical  Bulk
     Storage permits in the name of Buyer.

7.   Filings with and consents, approvals and other actions by the NYSDEC as may
     be required for the transfer of the State Pollutant  Discharge  Elimination
     System  ("SPDES")  permits and the  designation  thereunder of Buyer as the
     owner of the Generating Facilities.

8.   Filings with and consents, approvals and other actions by the NYSDEC as may
     be  required  for the  issuance by the NYSDEC of Major  Petroleum  Facility
     licenses in the name of Buyer.

B.   Environmental
     -------------

                               E.F. Barrett Plant

1.   Leak in circulating  line within concrete  containment dike resulted in the
     release of 5 gallons of No. 6 oil (NYSDEC Spill 06-09374).

2.   Pump failed  within pump house  resulting  in the release of 500 gallons of
     No.  6 oil.  All  fuel  oil  contained  within  pump  house  (NYSDEC  Spill
     05-05253).

3.   Spill of  approximately  1 gallon of oily water due to  equipment  failure.
     Currently  awaiting  final  inspection and close out from the NYSDEC (spill
     number 05-00135).


                                      V-2



                                      ICUs

1.   Certain of the ICUs are not capable of meeting existing  required daily NOx
     Reasonably  Achievable Control Technology ("RACT") emission  limitations on
     an individual  unit basis.  Compliance  currently  relies on a daily system
     wide NOx averaging  program in which compliance  shortfall at such units is
     compensated  for by an excess  margin of compliance at other Genco units as
     provided for in the Seller's  NYSDEC  approved  NOx RACT  compliance  plan.
     Consequently,  future  compliant  operation of the ICUs under  ownership by
     purchaser or subsequent  acquirer under existing NOx RACT emissions  limits
     is subject to  approval  by NYSDEC  (and  possibly  the U.S.  Environmental
     Protection  Agency  ("US EPA")) to  continued  inclusion  of the  Purchased
     Assets within the Seller's NOx RACT system wide averaging  compliance  plan
     or,  alternatively,  the  implementation of other NOx reduction measures on
     the Purchased Assets.

2.   Broken fuel oil supply hose at Unit number 12A.  Volume of fuel released is
     approximately 150 gallons (NYSDEC Spill 99-02621).

3.   Hole in fuel oil return line within  trench under  roadway  resulted in the
     release of 1,000 gallons of No. 2 oil (NYSDEC Spill 06-06424).

4.   In 1984, piping associated with Tank 101 resulted in a significant  release
     of No. 2 fuel oil through the tank  containment  dike. The release impacted
     surrounding  soil and adjacent creek. A NYSDEC  corrective  action plan was
     successfully implemented. Residual petroleum products remain in the ground.


             Each of E.F. Barrett Plant, Far Rockaway Plant and ICUs


1.   The E.F.  Barrett Plant, Far Rockaway Plant and ICUs contain thermal system
     components  and other systems that utilize  insulation  or other  materials
     containing   asbestos  fibers  (including,   but  not  limited  to,  boiler
     insulation,  pipe  insulation and coverings,  duct insulation and coverings
     and other thermal system  insulations),  and such circumstances  could form
     the basis of an  Environmental  Claim.  The extent of this asbestos and the
     components and other systems  affected,  and the amount of the  remediation
     costs, if required, with respect thereto, are unknown.

2.   The E.F.  Barrett  Plant,  Far  Rockaway  Plant and ICUs  contain  facility
     components  and other  systems  covered  with paint or other  coating  that
     contain  lead,  and  such   circumstances   could  form  the  basis  of  an
     Environmental  Claim.  The extent of this lead and the components and other
     systems  affected,  and the amount of the  remediation  costs, if required,
     with respect thereto, are unknown.

3.   The E.F.  Barrett  Plant,  Far Rockaway  Plant and ICUs contain  former ash
     deposition areas and coal stock pile areas,  with resulting  run-off areas,


                                      V-3





     and such circumstances could form the basis of an Environmental  Claim. The
     extent of deposited  material and the amount of the  remediation  costs, if
     required, are unknown.

4.   Throughout  the life of each of the E.F.  Barrett  Plant,  the Far Rockaway
     Plant and the ICUs, various routine and other repairs and maintenance tasks
     have been performed,  including various component replacements.  The US EPA
     and other parties have made claims against a number of operators and owners
     of electric power plants that routine and other  maintenance  tasks cause a
     plant to be  "modified"  for  purposes  of the Clean Air Act and subject to
     "New Source Review" requirements,  resulting in violations of the Clean Air
     Act.  While there have been no New Source  Review  claims made  against the
     E.F.  Barrett  Plant,  the Far Rockaway Plant or the ICUs as of the date of
     the  Agreement,  future claims could be made by the US EPA or other parties
     alleging that previous repairs and maintenance tasks have resulted in Clean
     Air Act violations.  The effect of such a claim,  if successfully  made, is
     not  known,  including,  but not  limited  to,  the  type  and  cost of the
     pollution  control  equipment  that would to  required  to meet "New Source
     Review" requirements.

5.   From time to time,  the Far Rockaway  Plant,  E.F.  Barrett  Plant and ICUs
     exceed  opacity  limits  specified  in  their  New York  State  Title V air
     permits.  All exceedences are reported to the NYSDEC in accordance with the
     applicable NY DEC consent order.

6.   From time to time,  the Far Rockaway  Plant,  E.F.  Barrett  Plant and ICUs
     exceed  limits  specified  in their  SPDES  permits.  All  exceedences  are
     reported to the NYSDEC in accordance with the applicable SPDES permits.







                                      V-4







                                                                      FINAL COPY

      Annex D to First Amendment to Option and Purchase and Sale Agreement


                       OPERATION AND MAINTENANCE AGREEMENT


                                     between


                    LONG ISLAND LIGHTING COMPANY (d/b/a LIPA)


                                       and


                        [KEYSPAN CORPORATION SUBSIDIARY]


                           Dated as of [_____________]






                                TABLE OF CONTENTS
                                -----------------


                                                                                                                Page
                                                                                                             
ARTICLE 1 DEFINITIONS.............................................................................................1


ARTICLE 2 OPERATOR'S SERVICES.....................................................................................7

         2.1.     Scope of Services...............................................................................7
                  2.1.1.   Services to be Provided by Operator....................................................7
                  2.1.2.   General Service Requirements...........................................................8
         2.2.     Minimum Loadings Ramp Rate, Start-Up Times and Minimum Scheduled Shut Down......................9
         2.3.     Plant Document Preparation......................................................................9
                  2.3.1.   O&M Procedures.........................................................................9
                  2.3.2.   Preventive Maintenance Program.........................................................9
                  2.3.3.   Administrative Procedures Manual.......................................................9
         2.4.     Plant Staffing..................................................................................9

ARTICLE 3 OWNER RESPONSIBILITIES.................................................................................10

         3.1.     General........................................................................................10
         3.2.     Information....................................................................................10
         3.3.     Site Access and Facilities.....................................................................10
         3.4.     Permits........................................................................................10
         3.5.     Other Services.................................................................................10

ARTICLE 4 BUDGET PREPARATION, REVIEW AND ADOPTION................................................................10

         4.1.     Annual Capital Budget Preparation..............................................................10
         4.2.     Annual Capital Budget Review...................................................................10

ARTICLE 5 BILLING DATA AND OTHER OPERATING REPORTS...............................................................11

         5.1.     Reports........................................................................................11
                  5.1.1.   Monthly Reports.......................................................................11
                  5.1.2.   Quarterly Reports.....................................................................11
         5.2.     Notice from Judicial/Governmental Authorities..................................................11
         5.3.     Government Reports.............................................................................11
         5.4.     Other Information..............................................................................12

ARTICLE 6 DISPUTE RESOLUTION.....................................................................................12

         6.1.     General........................................................................................12
         6.2.     Negotiation....................................................................................12
         6.3.     Dispute Resolution Following Negotiation.......................................................12
         6.4.     Mediation......................................................................................12
         6.5.     Arbitration....................................................................................13


                                       i



         6.6.     Provisional Relief.............................................................................13
         6.7.     Information Exchange...........................................................................13
         6.8.     Site of Arbitration............................................................................13
         6.9.     Awards.........................................................................................13
         6.10.    Grounds for Judicial Review....................................................................14
         6.11.    No Interruption................................................................................14

ARTICLE 7 COMPENSATION AND PAYMENT...............................................................................14

         7.1.     Monthly Invoices...............................................................................14
         7.2.     Fuel Management Fee............................................................................14
         7.3.     Audit..........................................................................................14
         7.4.     Maximum Variable Charge Payment................................................................15

ARTICLE 8 TERM AND TERMINATION...................................................................................15

         8.1.     Effective Date.................................................................................15
         8.2.     Term...........................................................................................15
         8.3.     Termination by Operator........................................................................15
                  8.3.1.   Termination Rights....................................................................15
                  8.3.2.   Payment...............................................................................16
         8.4.     Termination by Owner...........................................................................16
                  8.4.1.   Termination for Cause.................................................................16
                  8.4.2.   Termination for Convenience...........................................................17
         8.5.     Plant Condition at End of Term.................................................................17

ARTICLE 9 INSURANCE..............................................................................................18

         9.1.     Operator Insurance Coverage....................................................................18
                  9.1.1.   Plant Liability Insurance.............................................................18
                  9.1.2.   Workers Compensation and Employers Liability Insurance................................19
                  9.1.3.   General Insurance Provisions..........................................................19
                  9.1.4.   Operator Disclosure and Cooperation...................................................20
         9.2.     Owner Insurance Coverage.......................................................................20
         9.3.     Self-Insurance, etc............................................................................20

ARTICLE 10 INDEMNIFICATION.......................................................................................21

         10.1.    Indemnification of Owner.......................................................................21
         10.2.    Indemnification of Operator....................................................................22
         10.3.    Notice.........................................................................................23
         10.4.    Deferral of Dispute Resolution.................................................................23

ARTICLE 11 GENERAL LIMITATIONS OF LIABILITY......................................................................23

         11.1.    Total Liability................................................................................23
         11.2.    Consequential Damages..........................................................................24
         11.3.    Owner Actions..................................................................................24


                                       ii




         11.4.    Survival and Application.......................................................................24

ARTICLE 12 ENVIRONMENTAL MATTERS.................................................................................24

         12.1.    Site Conditions................................................................................24
                  12.1.1.  Disclosure............................................................................24
         12.2.    Insurance/Indemnification......................................................................24
         12.3.    Compliance.....................................................................................24
         12.4.    New Source Review Requirements.................................................................25

ARTICLE 13 NONDISCLOSURE.........................................................................................25

         13.1.    General........................................................................................25
         13.2.    Exceptions.....................................................................................25
         13.3.    Required Disclosure............................................................................25

ARTICLE 14 DOCUMENTS AND MATERIALS...............................................................................26

         14.1.    Documents and Materials........................................................................26
         14.2.    Review by Owner................................................................................26

ARTICLE 15 MISCELLANEOUS PROVISIONS..............................................................................26

         15.1.    Agreement......................................................................................26
         15.2.    Relationship of the Parties....................................................................26
         15.3.    KeySpan Guaranty...............................................................................26
         15.4.    Assignment.....................................................................................26
         15.5.    Access.........................................................................................27
                  15.5.1.  Owner.................................................................................27
                  15.5.2.  Cooperation...........................................................................27
         15.6.    Not for Benefit of Third Parties...............................................................27
         15.7.    Force Majeure..................................................................................27
                  15.7.1.  Events Constituting Force Majeure.....................................................27
                  15.7.2.  Event of Force Majeure................................................................28
                  15.7.3.  Scope.................................................................................28
         15.8.    Strikes........................................................................................28
         15.9.    Amendments.....................................................................................28
         15.10.   Survival.......................................................................................29
         15.11.   No Waiver......................................................................................29
         15.12.   Notices........................................................................................29
         15.13.   Representations and Warranties.................................................................29
                  15.13.1. Owner Representations and Warranties..................................................29
                  15.13.2. Operator Representations and Warranties...............................................30
         15.14.   Counterparts...................................................................................31
         15.15.   Governing Law..................................................................................31
         15.16.   Captions; Appendices...........................................................................31
         15.17.   Non-Recourse...................................................................................31
         15.18.   Severability...................................................................................31


                                      iii



         15.19.   Rules of Interpretation........................................................................31
         15.20.   Private Use Rules..............................................................................32
         15.21.   State Law Requirements.........................................................................32



                                   APPENDICES
                                   ----------

Appendix A - Excluded Services
Appendix B - Allocated Fixed O&M Cost Payment
Appendix C - KeySpan Guaranty
Appendix D - Fuel Management Services
Appendix E - Provisions Required by State Law












                                       iv




                       OPERATION AND MAINTENANCE AGREEMENT
                       -----------------------------------

     This OPERATION AND MAINTENANCE  AGREEMENT (the "Agreement") is entered into
as of  [___________],  by and between LONG ISLAND  LIGHTING  COMPANY  d/b/a LIPA
("Owner",  and also referred to herein as "LIPA"), a wholly-owned  subsidiary of
the Long Island  Power  Authority,  a corporate  municipal  instrumentality  and
political  subdivision  of the  State  of New  York,  and  [KEYSPAN  CORPORATION
SUBSIDIARY] ("Operator"), a corporation organized and existing under the laws of
the State of New York.

                                    RECITALS
                                    --------

     WHEREAS,  LIPA and an affiliate of Operator,  KeySpan Generation,  LLC, are
parties  to an Option and  Purchase  and Sale  Agreement  dated as of January 1,
2006, as amended pursuant to the First Amendment to Option and Purchase and Sale
Agreement dated as of March 22, 2007 (the "Option Agreement") pursuant to which,
subject to the terms and  conditions  thereof,  LIPA has  exercised an option to
purchase the Plant (as defined below); and

     WHEREAS,  Owner and Operator are entering into this  Agreement  pursuant to
Section 6.1 of the Option  Agreement,  in order for the Owner to retain Operator
to operate and  maintain  the Plant upon the terms and  conditions  set forth in
this Agreement.

     NOW,  THEREFORE,  in consideration of the mutual promises set forth herein,
the parties agree as follows:

                                    ARTICLE 1

                                   DEFINITIONS

     Unless otherwise required by the context in which any defined term appears,
the following capitalized terms have the meanings specified in this Article 1:

          "Administrative  Procedures  Manual" has the meaning  ascribed to that
     term in Section 2.3.3.

          "Affiliate"  means, with respect to any Person,  any other Person that
     directly or  indirectly  controls,  is  controlled  by, or is under  common
     control  with  such  Person.  For  purposes  of the  foregoing  definition,
     "control" means (i) the direct or indirect ownership of fifty percent (50%)
     or more of the  outstanding  capital  stock or other  securities  or equity
     interests  having  ordinary  voting power to elect the board of  directors,
     managing general partner or similar managing authority or (ii) the power to
     direct the management of such Person.

          "Agreement" means this Operation and Maintenance Agreement,  including
     all Appendices  annexed hereto and any terms  specifically  incorporated by
     reference,  and any  amendments  hereto  agreed in writing  by the  parties
     hereto.

          "Allocated  Fixed O&M Cost  Payment"  means a monthly  payment made by
     Owner to Operator determined in accordance with Appendix B.





          "Annual Capital Budget" has the meaning set forth in Section 4.2.

          "Applicable  Law"  means  any  Permit  or  any  law,   statute,   act,
     regulation,  code,  ordinance,  rule, judgment,  order, decree,  directive,
     requirement,  guideline or any similar  decision or  determination,  or any
     Governmental  Authority's official  interpretation or administration of any
     of the foregoing, which governs or affects the Plant, as now or hereinafter
     in effect.

          "Arbitrators" has the meaning set forth in Section 6.5.

          "Availability"  means the availability of the Plant as measured by the
     North   American   Electric   Reliability   Council   (NERC)  -  Generating
     Availability Data System (GADS)  Availability  Factor Formula, as set forth
     in Section II of Appendix F to the Power Supply Agreement.

          "Bankrupt"  means  with  respect  to a party,  such  party (a) files a
     petition  or  otherwise   commences  a  proceeding  under  any  bankruptcy,
     insolvency,  reorganization  or similar law, or has any such petition filed
     or commenced against it, (b) makes an assignment or any general arrangement
     (other than an assignment  undertaken in connection  with a financing)  for
     the benefit of  creditors,  (c)  otherwise  becomes  bankrupt or  insolvent
     (however  evidenced),  (d)  has  a  liquidator,  administrator,   receiver,
     bankruptcy trustee,  conservator or similar official appointed with respect
     to it or any substantial  portion of its property or assets,  provided that
     if such action is taken without such party's  consent,  such party shall be
     allowed 60 days to dismiss such appointment,  or (e) is generally unable to
     pay its debts as they come due.

          "Business  Day" means any day other than a  Saturday,  Sunday or legal
     holiday.  Legal  holidays  are  those  holidays  set  forth  in  Operator's
     collective bargaining agreements.

          "Calendar  Year" means (i)  initially,  the period from the  Effective
     Date to the last day of next succeeding December and (ii) thereafter,  each
     12-month period beginning on the first day of each January.

          "Chair" has the meaning set forth in Section 6.5.

          "Computerized  Maintenance  Management System" means a computer system
     to manage maintenance activities, such as work order creation and tracking,
     maintenance  scheduling,  equipment history,  parts information,  inventory
     tracking, manhours required for maintenance, and the Preventive Maintenance
     Program.

          "Confidential  Information"  has the meaning  ascribed to that term in
     Section 13.1.

          "City Gate" means a receipt  point of natural gas at any point located
     at the New York  Facilities at which KeySpan may now have rights to receive
     natural gas.

          "CPR" means the  International  Institute  for  Conflict  Prevention &
     Resolution.


                                       2



          "CPR Mediation  Procedures" mean the procedures published from time to
     time by the CPR for the conduct of mediations.

          "CPR Rules" has the meaning set forth in Section 6.5.

          "Default  Interest Rate" means the rate  established from time to time
     as the "overpayment rate" pursuant to Subsection (e) of Section 1096 of the
     New York State Tax Law by the New York State  Commission  of  Taxation  and
     Finance,  as applicable  to Owner under Section  2880(7)(c) of the New York
     State Public Authorities Law.

          "Dispute"  means  any  dispute  arising  out  of or  relating  to  the
     Agreement.

          "Effective Date" has the meaning ascribed to that term in Section 8.1.

          "Emergency"  means an event  occurring at the Plant which poses actual
     or  imminent  risk  of  serious   personal   injury,   physical  damage  or
     environmental  contamination  requiring immediate  preventative or remedial
     action by Operator.

          "Energy Management  Agreement" means the Energy Management  Agreement,
     by and between LIPA and KETS,  dated as of June 26, 1997, as amended by the
     first  amendment  thereto,  dated  March 29,  2002,  the  second  amendment
     thereto,  dated December 30, 2005, and the third amendment  thereto,  dated
     _______.

          "Environmental Claim" means any and all administrative,  regulatory or
     judicial  actions,  suits,  or  proceedings  alleging  potential  liability
     arising  out of (a) the  Release  into  the  environment  of any  Hazardous
     Materials at the Plant; or (b) any violation of any  Environmental Law with
     respect to the Plant.

          "Environmental  Law" means all applicable  federal,  state,  and local
     statutes,  ordinances,  and  regulations  relating  to  pollution  and  the
     protection of the environment.

          "Excluded  Services"  means  those  services  set forth in  Appendix A
     annexed hereto.

          "FAA" has the meaning set forth in Section 6.9.

          "Fees-And-Costs"  means  reasonable  fees and  expenses of  employees,
     attorneys,   architects,    engineers,   accountants,   expert   witnesses,
     contractors,  consultants  and other  persons,  and  costs of  transcripts,
     printing  of briefs and  records on appeal,  copying  and other  reimbursed
     expenses, and expenses of any Legal Proceeding.

          "FERC" means the Federal Energy Regulatory Commission.

          "Firm Gas  Supply"  means a type of natural  gas supply  delivered  or
     transported  to a City Gate that may not be  interrupted  except  for Force
     Majeure events.  Such gas may be interrupted on the gas distribution system
     serving KeySpan's existing gas service area whenever its continued delivery
     would  adversely  affect the  reliability  of the gas  distribution  system
     serving KeySpan's existing gas service area.


                                       3



          "Force  Majeure"  has the  meaning  ascribed  to that term in  Section
     15.7.1.

          "Fuel" means natural gas, oil,  kerosene or other fossil fuel used for
     operating the Plant.

          "Fuel Management Fee" has the meaning ascribed to that term in Section
     7.2.

          "Gas  Balancing"  means  the type of  service  currently  provided  by
     KeySpan  whenever the aggregate daily gas taken for use by the Plant varies
     from the daily nominated  quantity.  When this occurs,  Operator will cause
     certain assets  currently  owned or contracted for by KeySpan to be used to
     either provide  additional  quantities of gas required by the Plant or take
     back any excess quantities not required by the Plant.

          "Guarantor" means KeySpan.

          "Governmental  Authority"  means any  Federal,  state,  local or other
     governmental,  regulatory or administrative agency, commission, department,
     board, or other governmental subdivision, court, tribunal, arbitral body of
     other  governmental  authority,  but  excluding  any owner of the Plant (if
     otherwise a Governmental  Authority under this  definition)  when acting in
     its ownership capacity.

          "Hazardous  Materials"  means (A) any petroleum,  asbestos in any form
     that is friable,  and  polychlorinated  biphenyls;  and (B) any  chemicals,
     materials  or  substances  which  are now  defined  as or  included  in the
     definition  of  "hazardous   substances,"  "hazardous  wastes,"  "hazardous
     materials,"  "extremely hazardous wastes,"  "restricted  hazardous wastes,"
     "toxic substances," or "toxic pollutants" under any Environmental Law.

          "Indemnified  Party" has the meaning  ascribed to that term in Section
     10.3.

          "Indemnifying  Party" has the meaning ascribed to that term in Section
     10.3.

          "Interruptible  Gas Supplies"  means natural gas supplies that will be
     interrupted whenever the supplier recalls supplies pursuant to a negotiated
     supply   contract   and/or   the   interstate   pipeline   interrupts   the
     transportation  of such gas supply  pursuant to its FERC  approved  tariff.
     Such gas supplies may also be interrupted for force majeure events.

          "KETS" means KeySpan Energy Trading Services LLC.

          "KeySpan" means KeySpan Corporation, a New York corporation.

          "KeySpan  Guaranty"  has the meaning  ascribed to that term in Section
     15.3.

          "Loss-and-Expense" means any and all losses, liabilities, obligations,
     damages,  delays, fines,  penalties,  judgments,  deposits,  costs, claims,
     demands,   charges,   assessments,   taxes,  or  expenses,   including  all
     Fees-And-Costs.


                                       4



          "New York Facilities" or "NYF" means the system of gas mains severally
     owned  and  operated  by  KeySpan,  The  Brooklyn  Union  Gas  Company  and
     Consolidated Edison Co. of New York, Inc. pursuant to the NYF Agreement.

          "NYF Agreement" means the New York Facilities  Agreement  entered into
     as of January  1,  1994,  by an between  The  Brooklyn  Union Gas  Company,
     Consolidated  Edison Co. of New York,  Inc.,  and KeySpan,  as successor to
     Long Island Lighting Company, as the same may be amended in accordance with
     its terms.

          "O&M Manual" means all equipment manuals, system descriptions,  system
     operating  instructions,  equipment maintenance  instructions and pertinent
     design documentation  (including vendor and manufacturer manuals,  as-built
     drawings  and all final  specifications)  for the Plant  provided by Owner,
     Operator, manufacturers, suppliers or vendors.

          "O&M Procedures" means the procedures developed by Operator as defined
     in Section 2.3.1.

          "Operator  Indemnified  Parties" has the meaning ascribed to that term
     in Section 10.2.

          "Owner  Indemnified  Parties" has the meaning ascribed to that term in
     Section 10.1.

          "Party Appointed Arbitrators" has the meaning ascribed to that term in
     Section 6.5.

          "Permits" means collectively all authorizations,  approvals, licenses,
     rulings, permits, waivers, certifications,  exemptions,  variances, filings
     or  registrations by or with any  Governmental  Authority  required for the
     operation,  maintenance,  repair,  subsequent  improvement,   modification,
     replacement and ownership of the Plant.

          "Person"  means,  unless  otherwise   specified,   a  natural  person,
     corporation,   limited  liability  company,  partnership,   joint  venture,
     unincorporated   association,   society  or  other   entity,   including  a
     Governmental Authority.

          "Plant"  means the  [insert  definition(s)  from Option  Agreement  of
     either  E.F.  Barrett  Plant  and  ICUs,  or  E.F.  Barrett  Plant,  or Far
     Rockaway].

          "Plant  Documents"  means  the O&M  Manual,  the O&M  Procedures,  the
     Administrative Procedures Manual, the Annual Capital Budget, administrative
     and general procedures, Emergency response procedures and other manuals and
     procedures for the Plant developed by Operator from time to time.

          "Plant  Liability  Insurance" has the meaning ascribed to that term in
     Section  9.1.1.


                                       5



          "Power Supply Agreement" or "PSA" means the Power Supply Agreement, by
     and between LIPA and GENCO,  dated as of June 26,  1997,  as amended by the
     amendments thereto, dated [___________].

          "Preventive Maintenance Program" has the meaning ascribed to that term
     in Section 2.3.2.

          "Prudent  Electric  Production  Practices" means any of the practices,
     methods and acts,  as revised  from time to time,  that are then  generally
     accepted by the electric  generation  industry and commonly used in prudent
     electric  generation  engineering  and  operations  to operate and maintain
     equipment lawfully, safely, dependably and economically,  and as would have
     been expected, in the exercise of reasonable judgment in light of the facts
     and  characteristics  of the Plant known, or should have been known, at the
     time the decision is made, to accomplish  the desired  result at the lowest
     reasonable cost in a manner  consistent with  Applicable  Laws,  applicable
     Permits,  reliability,   safety,  environmental  protection,   economy  and
     expediency,  including,  without limitation, those established by the North
     American Electric  Reliability  Council, as applicable to units of the size
     and  type of the  Plant.  Prudent  Electric  Production  Practices  are not
     intended  to be limited to the  optimum  practices,  methods or acts to the
     exclusion  of others,  but rather to the  spectrum of  possible  practices,
     methods  and  acts  generally  accepted  by a  significant  portion  of the
     electric  generation  industry in the relevant region,  during the relevant
     time period, as described in the preceding sentence.

          "Quarterly  Report"  means the report  prepared on a monthly  basis by
     Operator as further described in Section 5.1.2.

          "Release"  means  any  release,  spill,  emission,  leaking,  pumping,
     pouring,  injection,  escaping,  deposit, disposal,  discharge,  dispersal,
     leaching,  or migration into the indoor or outdoor environment  (including,
     without limitation, the abandonment or disposal of any barrels,  containers
     or other closed receptacles containing any hazardous materials), as well as
     the  movement of any  hazardous  material  through the air,  soil,  surface
     water, groundwater or property:

          "Services" has the meaning ascribed to that term in Section 2.1.

          "System  Interruptible  Gas Supply" means a type of natural gas supply
     that will be interrupted  whenever its continued  delivery would  adversely
     impact the delivery of gas to the gas customers served by the KeySpan's gas
     transmission or distribution system; furthermore, if Operator is using non-
     KeySpan assets to provide  natural gas to the Plant,  such gas will only be
     interrupted  on KeySpan's gas  distribution  system  whenever its continued
     delivery would adversely  impact the  reliability of such gas  distribution
     system.  If the Plant is using gas provided from KeySpan assets,  the Plant
     will be interrupted before KeySpan's interruptible gas customers consistent
     with current practices. Such gas supplies may also be interrupted for force
     majeure events.

          "Term" has the meaning ascribed to that term in Section 8.2.


                                       6



          "Termination for Convenience" has the meaning ascribed to that term in
     Section 8.4.2.

          "Transitional Labor Costs" mean the annualized labor costs, based upon
     actual  head  count  (and  including,  without  limitation,  all  salaries,
     pensions  and  welfare  benefits  and all other  direct  labor  costs),  of
     personnel  assigned full time to the Plant on the date of a Termination for
     Convenience  pursuant to Section 8.4.2,  who are no longer required for the
     operation  and  maintenance  of the  Plant  due to a  termination  of  this
     Agreement,  either with respect to the Plant or a discrete generating unit,
     under Section 8.4.2.

          "Transitional  Labor Cost  Payments" has the meaning  ascribed to that
     term in Section 8.4.2.

          "Utility Services" means electric, telephone, potable water, municipal
     water,  sewage and other  utility  services  required by  Operator  for the
     provision of Services.

          "Variable  Charge"  means (i) for the period from the  Effective  Date
     through December 31, 2008,  90(cent) per net MWh produced by the Plant, and
     (ii) for any period beginning after December 31, 2008, an amount per MWh to
     be agreed by the parties based upon  Operator's  variable  costs to provide
     the Services.  If the parties do not agree on a new Variable Charge for the
     periods  after  December 31, 2008,  then such dispute  shall be resolved in
     accordance with Article 6.

          "Variable Charge Cap" has the meaning ascribed to that term in Section
     7.4.

          "Variable  Charge  Excess"  has the  meaning  ascribed to that term in
     Section 7.4.

          "Variable  Charge  Payment  " means an  amount  equal to the  Variable
     Charge multiplied by the net MWh produced by the Plant.

                                    ARTICLE 2


                               OPERATOR'S SERVICES

     2.1.  Scope of Services.  Except as provided in Article 3,  Operator  shall
provide, or cause to be provided, all services necessary to operate and maintain
the Plant in  accordance  with the services  described in this Article 2 and the
other  requirements  set  forth  in this  Agreement  (the  "Services").  Without
limiting the generality of the foregoing,  and subject to the  requirements  set
forth in Section 2.1.2,  Operator shall perform,  or cause to be performed,  the
following Services for the Owner:

          2.1.1. Services to be Provided by Operator.  During the Term, Operator
     shall have the responsibility to:

          (a)  provide Fuel management services as set forth in Appendix D;

          (b)  develop,   implement  and  update  as  necessary   site  specific
               Operations   and   Maintenance   Procedures   and  a   Preventive
               Maintenance Program;


                                       7



          (c)  implement a Computerized Maintenance Management System;

          (d)  perform routine repairs on any failed or malfunctioning equipment
               comprising part of the Plant;

          (e)  schedule,  procure and manage major maintenance  services for the
               Plant;

          (f)  identify the need for goods and services  providers (which may be
               affiliates  of the  Operator)  with respect to the  operation and
               maintenance of the Plant and schedule,  arrange for, procure, and
               coordinate the receipt of such goods and services;

          (g)  purchase,   receive  and  expedite,   as  necessary,   chemicals,
               lubricants,  consumables,  operating  and  maintenance  supplies,
               vehicles,  spare  parts,  safety  supplies,  tools and  equipment
               required to operate and maintain the Plant;

          (h)  maintain an  inventory of spare  parts,  materials,  supplies and
               tools  necessary to operate and maintain the Plant,  and purchase
               replacement inventory as required;

          (i)  provide periodic technical,  administrative and financial reports
               to Owner as required  with respect to the Plant,  including  such
               reports as required by regulatory agencies;

          (j)  maintain  required  technical  and  administrative  records  with
               respect to the Plant;

          (k)  establish  and  maintain a technical  library with respect to the
               Plant;

          (l)  make  recommendations  to  Owner  for  capital  improvements  and
               changes  to the  Plant as part of the  Annual  Capital  Budget as
               provided in Article 4 (it being  acknowledged and agreed, for the
               avoidance  of doubt,  that the  Services  shall not  include  the
               making of any  capital  improvements  or  changes  to the  Plant,
               except as Owner and  Operator  may  mutually  agree  from time to
               time); and

          (m)  provide  assistance to Owner in the  preparation of insurance and
               warranty  claims,  preparation of reports required to comply with
               Environmental  Laws,  regulations  or  Permits,  and  such  other
               matters relating to the operation and maintenance of the Plant as
               Owner may reasonably require.

          2.1.2.  General  Service  Requirements.  In  providing  the  Services,
     Operator shall:

          (a)  comply with,  to the extent  applicable  and necessary to provide
               the Services,  (i) all  Applicable  Laws,  (ii) Prudent  Electric
               Production Practices, (iii) all insurance requirements applicable
               to the Plant,  (iv) any warranty  obligations  applicable  to the
               Plant,   (v)  vendor   manuals  and   manufacturer's   guidelines


                                       8



               applicable  to the  Plant or, in  Operator's  opinion  and to the
               extent they comply with Prudent  Electric  Production  Practices,
               Operator's current practice,  (vi) O&M Manuals approved by Owner,
               and (vii)  NYISO  dispatch  directions;  provided,  however  that
               Operator shall be excused from such  compliance with the previous
               clauses (i) through (vii) if the reason for non-compliance arises
               from (A) any act or omission by Operator to the extent  necessary
               to respond to any  Emergency;  or (B) any  budgetary  limitations
               imposed  by Owner  pursuant  to  Article  4; or (C) as  otherwise
               expressly set forth in this Agreement.

          (b)  administer all matters  pertaining to labor relations,  salaries,
               wages,  working  conditions,   hours  of  work,   termination  of
               employment,  employee  benefits,  safety, and all other personnel
               matters; and

          (c)  provide accounting,  bookkeeping,  and administrative services in
               connection with costs under the Annual Capital Budget;

     2.2. Minimum Loadings Ramp Rate,  Start-Up Times and Minimum Scheduled Shut
Down. In providing the Services,  the Operator  shall not be required to operate
the Plant outside of the specifications for the Plant set forth in Appendix E of
the Power Supply Agreement  (which Appendix is hereby  incorporated by reference
herein) with respect to Minimum Loadings,  Ramp Rate, Start-Up Times and Minimum
Scheduled Shut Down.

     2.3. Plant Document Preparation.

          2.3.1. O&M Procedures. Operator shall develop, implement and update as
     necessary  Plant-specific  procedures as Operator  deems to be necessary or
     appropriate  for the safe and  efficient  operation of the Plant during the
     Term (the "O&M  Procedures"),  which O&M  Procedures  shall be  subject  to
     Owner's  review and  approval,  which  approval  shall not be  unreasonably
     withheld or delayed.

          2.3.2.   Preventive  Maintenance  Program.   Operator  shall  develop,
     implement and update as necessary a Plant-specific program for preventative
     maintenance (the "Preventive Maintenance Program"),  which program shall be
     subject  to  Owner's  review  and  approval,  which  approval  shall not be
     unreasonably withheld or delayed.

          2.3.3.  Administrative  Procedures  Manual.  Operator  shall  develop,
     implement  and update as necessary a manual for  administrative  procedures
     with  respect to the  Plant's  operation  (the  "Administrative  Procedures
     Manual"),  which  Administrative  Procedures  Manual  shall be  subject  to
     Owner's  review and  approval,  which  approval  shall not be  unreasonably
     withheld or delayed.

          2.4.  Plant  Staffing.  Operator  shall  provide  adequate  numbers of
     properly qualified, trained and, where required, licensed personnel for the
     performance of the Services.


                                       9



                                    ARTICLE 3

                             OWNER RESPONSIBILITIES

     3.1.  General.  At Owner's  sole cost and expense,  Owner shall  furnish to
Operator the information,  data, reports, services, materials and other items as
provided in this Article 3. Owner shall make such items  available at such times
and in such a manner as may be reasonably required by Operator.

     3.2. Information.  Owner shall provide to Operator copies of all agreements
related to the Plant and any amendments thereto or replacements thereof, as well
as technical,  operational and other information, all as reasonably available to
Owner  or in  Owner's  possession  and  necessary  for  the  performance  of the
Services.  Subject to the standards of  performance  set forth in Section 2.1.2,
and unless Owner  obtained such  documents and  information  from Operator or an
Affiliate of Operator,  Operator shall be entitled to rely upon such information
in its performance of the Services.

     3.3. Site Access and Facilities.  Owner shall arrange for Operator to have:
(i) continuous road access to the Plant,  (ii) adequate  parking  facilities for
all Operator  personnel,  including its  contractors and  subcontractors;  (iii)
access  to  the  Plant  and  all  systems,   interconnections,   equipment   and
appurtenances of the Plant;  and (iv) suitable office,  warehouse and laboratory
space, and maintenance shop facilities.  Operator hereby  acknowledges  that the
facilities at the Plant site as of the Effective  Date satisfy the  requirements
of the preceding sentence.

     3.4.  Permits.  Except for Permits that must be obtained by Operator  under
Applicable Law, Operator on behalf of Owner shall obtain or cause to be obtained
all Permits, including the renewal, revision or modification of such Permits, as
may be necessary  to  authorize  Operator to engage in the business of operating
and maintaining electric generation  facilities.  Operator shall comply with all
terms and conditions of such Permits.

     3.5. Other Services.  Owner shall be responsible for the Excluded  Services
as set forth in Appendix A.

                                    ARTICLE 4

                     BUDGET PREPARATION, REVIEW AND ADOPTION

     4.1. Annual Capital Budget  Preparation.  No later than September 1 of each
Calendar  Year,  Operator  will submit for Owner's  approval a written  proposed
budget for capital  expenditures with respect to the Plant for the next Calendar
Year and each of the four (4) succeeding Calendar Years.

     4.2. Annual Capital Budget Review.  Within 30 days of receipt of Operator's
proposed capital expenditure budget,  Owner shall review the proposed budget and
return it to Operator  with such changes,  additions,  deletions or revisions as
Owner  shall  require.  The budget as returned to Operator by Owner shall be the
"Annual Capital Budget" for the applicable Calendar Years.


                                       10



                                    ARTICLE 5

                    BILLING DATA AND OTHER OPERATING REPORTS

     5.1. Reports.

          5.1.1.  Monthly  Reports.  On the 15th  Business Day of each  calendar
     month following the Effective Date, Operator shall submit to Owner a report
     summarizing,  for  the  prior  calendar  month,  the  electric  generation,
     availability,  heat  rate  and Fuel  consumption  (each  on a  monthly  and
     year-to-date  basis),  major  equipment  trips  or  failures,  procurement,
     capital improvements,  labor relations, training activities, safety issues,
     significant   interactions  with  governmental   authorities,   significant
     environmental  and  permit  issues  including  any  notices  of  violation,
     significant operating problems along with remedial actions planned, a brief
     summary of major activities  planned for the next two reporting periods and
     other  material data in connection  with the Plant  operation for the prior
     calendar month. Such reports shall be in a format reasonably  acceptable to
     Owner.

          5.1.2.  Quarterly  Reports.  On the 20th Business Day  following  each
     quarter  following the  Effective  Date,  Operator  shall submit to Owner a
     report  summarizing  for such  prior  quarter  (i)  Annual  Capital  Budget
     performance,  and various  explanations  thereof, and other material Annual
     Capital Budget data in connection with the Plant and (ii) the progress with
     respect to scheduled  maintenance under the Preventive  Maintenance Program
     (the "Quarterly Report").

     5.2. Notice from Judicial/Governmental Authorities. Promptly upon obtaining
knowledge thereof,  each party shall submit to the other party written notice of
and  copies of any  relevant  documents  in the  submitting  party's  possession
relating to: (i) any litigation,  claims, disputes or actions actually filed, or
any  material  litigation,  claims,  disputes or actions  which are  threatened,
concerning in each case Owner,  Operator,  the Plant, or the Services;  (ii) any
actual  refusal to grant,  renew or extend,  or any action pending or any action
filed with respect to, the  granting,  renewal or extension of any Permit or any
material  threatened  action  regarding  the same;  (iii) any  dispute  with any
Governmental  Authority which may have a material adverse effect on the business
or affairs of Owner or Operator,  or Plant  operation or  maintenance;  and (iv)
without  regard to their  materiality,  all  penalties  or notices of  violation
issued by any Governmental Authority.

     5.3.  Government  Reports.  Any material reports relating to the Plant that
are prepared by Operator for submittal to any Governmental Authority shall first
be furnished to Owner for Owner's review and approval within a reasonable period
of time prior to such submission;  provided,  that if necessary to comply with a
prompt  filing  deadline,  Operator  shall  give  Owner  only  such  notice  and
opportunity to review as is reasonably practicable under the circumstances.  Any
Owner approval  shall not be  unreasonably  withheld or delayed.  Operator shall
provide to Owner a copy of all reports  relating to the Plant prepared by it for
submittal to any Governmental Authority concurrently with such submittal.


                                       11



     5.4.  Other  Information.  Upon Owner's  reasonable (as to time and format)
request,   Operator  shall  submit  to  Owner  any  other  material  information
reasonably  available to Operator concerning the Plant or the Services performed
by Operator.

                                    ARTICLE 6

                               DISPUTE RESOLUTION

     6.1.  General.  Any  Dispute  shall  be  resolved  in  accordance  with the
procedures  specified  below,  which  shall  constitute  the sole and  exclusive
procedures for the resolution of any Disputes.

     6.2.  Negotiation.  The parties may attempt to resolve any Dispute promptly
by appointing a senior executive of each party to attempt to mutually agree upon
a resolution.  Any party may give the other party written  notice of any Dispute
not resolved in the normal course of business.  Within 5 days after  delivery of
the notice,  the receiving  party shall submit to the other a written  response.
The notice and response  shall include (a) a statement of that party's  position
and a summary of arguments supporting that position,  and (b) the name and title
of the executive who will  represent that party and of any other person who will
accompany the executive.  Within 10 days after  delivery of the initial  notice,
the persons  representing  the parties shall meet at a mutually  acceptable time
and place, and thereafter as often as they reasonably deem necessary, to attempt
to resolve the Dispute.  The parties shall endeavor to complete the  negotiation
process  within 20 days  after  the  delivery  of the  negotiation  notice.  All
negotiations  pursuant to this clause shall be confidential and shall be treated
as compromise settlement negotiations which shall not be used by either party as
evidence in any mediation,  arbitration or court proceeding. The parties are not
required to undertake  negotiation of any Dispute prior to commencing  mediation
or  arbitration  pursuant  to Section 6.4 or Section  6.5  respectively  and may
commence  mediation or arbitration at any time during the course of negotiation.
If a party commences mediation or arbitration pursuant to Section 6.4 or Section
6.5  respectively,  any previously  commenced  negotiation  shall be immediately
terminated,   without  any  penalty  or  prejudice   to  the  party   commencing
negotiation.

     6.3. Dispute Resolution Following Negotiation.  If the Dispute has not been
resolved by negotiation as provided herein,  either party may commence mediation
or arbitration pursuant to Sections 6.4 or Section 6.5 respectively. The parties
are not  required to  undertake  mediation  of any Dispute  prior to  commencing
arbitration  pursuant to Section 6.5 and a party may commence arbitration at any
time during the course of mediation.  If a party commences  arbitration pursuant
to  Section  6.5,  any  previously  commenced  mediation  shall  be  immediately
terminated,   without  any  penalty  or  prejudice   to  the  party   commencing
arbitration.

     6.4. Mediation.  Either party may refer for mediation, by written notice to
mediate,  any Dispute not resolved by the  negotiations  provided for in Section
6.2.  The  mediation  shall be conducted in  accordance  with the CPR  Mediation
Procedures  then  currently  in  effect,  to  the  extent  such  procedures  are
consistent with the Agreement. The parties shall mutually agree on the selection
of a  mediator,  who  may,  but is not  required  to,  be on a list  of  neutral
mediators  published by the CPR. If the parties are unable to reach agreement on
the  selection  of a  mediator  within 5 days  after  delivery  of the notice to
mediate,  the parties shall follow the CPR  procedures for selecting a mediator.
The parties  shall  endeavor to complete the  mediation  process  within 20 days
after the delivery of the mediation notice.


                                       12



     6.5. Arbitration. Any Dispute which has not been resolved by negotiation as
provided  in Section  6.2 or by  mediation  as  provided in Section 6.4 shall be
settled  by  binding   arbitration   in  accordance   with  the  CPR  Rules  for
Non-Administered  Arbitrations ("CPR Rules") then currently in effect, except to
the extent such rules are inconsistent  with any provision of the Agreement,  in
which case the  provisions of the Agreement  shall be followed.  An  arbitration
shall be commenced by written notice to the other party  containing  information
regarding  the Dispute as set forth in Section  6.2.  The  arbitration  shall be
conducted by three arbitrators (the "Arbitrators").  The Owner designates [name]
as its  arbitrator  or,  in the  event  [name]  is  unavailable,  [name]  as its
alternate  arbitrator.  The Operator  designates [name] as its arbitrator or, in
the event [name] is  unavailable,  [name] as its  alternate  arbitrator.  In the
event that a party's  designee is no longer able or is  unwilling to serve as an
arbitrator  for a  Dispute,  a party may  appoint a  substitute  or  replacement
arbitrator  and shall  promptly  notify the other party  thereof.  The  parties'
designated  arbitrators  are  hereinafter  referred  to as the "Party  Appointed
Arbitrators."  The Party  Appointed  Arbitrators,  within two  business  days of
receiving a notice of arbitration  will select a third arbitrator (the "Chair"),
who will be one of the following  individuals:  [names].  The Chair shall be the
chairperson of the panel.  In the event that any one of these  individuals is no
longer  able or is  unwilling  to  continue  to serve as the  Chair,  the  Party
Appointed  Arbitrators will confer and agree on a replacement  arbitrator within
three  Business  Days. In the event no such  agreement  can be reached,  the CPR
procedures shall govern the appointment of the Chair.

     6.6.  Provisional  Relief.  Either  party  may,  without  prejudice  to any
negotiation, mediation, or arbitration procedures, proceed in the New York State
Supreme Court,  Nassau County, to obtain provisional  judicial relief if, in the
such  party's  sole  discretion,  such  action is  necessary  to avoid  imminent
irreparable harm, to provide uninterrupted  electrical and other services, or to
preserve  the  status quo  pending  the  conclusion  of the  Dispute  procedures
specified herein. For purposes of the foregoing,  Owner and Operator each hereby
agrees to submit to the  jurisdiction  of such court and, to the maximum  extent
permitted  by law,  waives any right to object to the  bringing  of an action in
such  court on  ground of lack of venue or that  such  court is an  inconvenient
forum.

     6.7.  Information  Exchange.  The Arbitrators  shall have the discretion to
order a prehearing  exchange of information by the parties,  including,  without
limitation,   production  of  requested  documents,   the  exchange  of  witness
statements of proposed witnesses,  and the examination by deposition of parties.
The parties  hereby agree timely to produce all such  information  as ordered by
the Arbitrators.

     6.8. Site of Arbitration.  The site of any Arbitration  brought pursuant to
the Agreement shall be either Mineola, New York or Hauppauge,  New York, or such
other site as the parties may agree.

     6.9.  Awards.  The  Arbitrators  shall have no authority to award  punitive
damages or any other damages aside from the  prevailing  party's  direct damages
plus  interest  at the Default  Interest  Rate from the date such  damages  were
incurred.  The Arbitrators may award reasonable attorneys' fees and costs of the


                                       13



arbitration. The arbitration shall be governed by the Federal Arbitration Act, 9
U.S.C.  ss.ss.1-16  (the  "FAA"),  and judgment  upon the award  rendered by the
Arbitrators may be entered by any court having jurisdiction thereof.

     6.10.  Grounds for Judicial Review.  Any award made by the Arbitrators with
respect to any Dispute  pursuant to these dispute  resolution  procedures may be
vacated,  modified or corrected by a court only on the grounds  permitted  under
the provisions of Sections 10 and 11 of the FAA.

     6.11. No Interruption.  The pendency of these Dispute resolution procedures
shall not in and of itself  relieve  either party from its duty to perform under
this  Agreement or serve to delay or suspend the operation of the Project or the
performance of the Services hereunder.

                                    ARTICLE 7

                            COMPENSATION AND PAYMENT

     Owner shall pay  Operator  for the  Services in the manner and at the times
specified in this Article 7.

     7.1. Monthly  Invoices.  Operator shall prepare and submit monthly invoices
to Owner no later than  fifteen  (15) days  following  the end of each  calendar
month for payments due hereunder, which will include charges for (i) the monthly
Allocated  Fixed O&M Cost  Payment  (ii)  subject to Section  7.4,  the  monthly
Variable  Charge  Payment,  and (iii) the monthly portion of the Fuel Management
Fee for such  month as  described  in Section  7.2.  Operator  shall  supply any
supporting  documentation  for the  invoice  as Owner  may  reasonably  request.
Subject to Owner's  right to conduct an audit  pursuant  to Section  7.3,  Owner
shall pay such invoices within ten (10) days following the receipt of Operator's
invoice.  Any amounts due but unpaid by Owner to Operator hereunder shall accrue
interest at the  Default  Interest  Rate from the date due until  paid.  Payment
shall  be made of all  amounts  owed by  Owner  to  Operator  hereunder  by wire
transfer,  or by other mutually agreeable  method(s) to an account designated by
Operator.

     7.2.  Fuel  Management  Fee. The Owner shall pay Operator a management  fee
(the "Fuel Management Fee") commencing in the first month of the Effective Date.
The  Fuel  Management  Fee  will  be  $125,000  per  year,  payable  in  monthly
installments of $10,416.67.  [The Fuel Management Fee shall be $125,000 per year
prorated  based upon the fuel BTU's  purchased in the year prior to the exercise
of the Option Agreement with respect to the Plant.] In addition, Owner shall pay
Operator  for the cost of Fuel and fuel  related  taxes,  as well as third party
fuel related fees and costs prudently incurred consistent with existing practice
under the Energy Management Agreement and Appendix D to this Agreement.

     7.3. Audit. Notwithstanding the payment of any amount under this Agreement,
Owner  shall  remain  entitled to conduct a  subsequent  audit and review of all
costs incurred and paid by Owner pursuant to this  Agreement,  together with any
supporting  documentation  requested  by Owner,  for a period of seven (7) years
from and after the date of such payment.  If, pursuant to such audit and review,
it is determined  that any amount  previously paid by Owner did not constitute a
due and payable item pursuant to this  Agreement,  Owner may recover such amount
from  Operator  or deduct or cause to be  deducted  such amount from any payment
that may be due to Operator.


                                       14



     7.4.  Maximum  Variable  Charge  Payment.  Notwithstanding  anything to the
contrary, the maximum aggregate Variable Charge Payments payable to Operator for
any Calendar Year shall not exceed an amount (the  "Variable  Charge Cap") equal
to twenty  percent  (20%) of the sum of the Allocated  Fixed O&M Cost  Payments,
Variable  Charge  Payments,  and Fuel  Management  Fee paid to Operator for such
Calendar Year. If the payment of the Variable Charge Payment for any month would
cause the sum of all Variable Charge  Payments for the applicable  Calendar Year
to exceed the  Variable  Charge  Cap,  then the  amount  (the  "Variable  Charge
Excess") by which such sum exceeds the Variable  Charge Cap shall not be payable
to  Operator.  Thereafter,  if the sum of all Variable  Charge  Payments for the
applicable  Calendar  Year  actually  paid to Operator is less than the Variable
Charge Cap, then there shall be paid to Operator  with the next monthly  payment
pursuant  to Section  7.1, an amount  equal to the lesser of (i) the  difference
between the sum of all Variable Charge Payments for the applicable Calendar Year
actually paid to Operator (taking into  consideration such month's payments) and
the Variable Charge Cap and (ii) the aggregate Variable Charge Excesses not paid
to Operator  for such  Calendar  Year and any  previous  Calendar  Years (plus a
carrying charge accruing at the Default Rate until such Variable Charge Excesses
are paid).

                                    ARTICLE 8

                              TERM AND TERMINATION

     8.1.  Effective  Date.  This  Agreement  shall become  legally  binding and
effective only upon satisfaction of the following conditions precedent (the date
upon which all such conditions are satisfied, the "Effective Date"):

          (a) Approvals of this Agreement (reasonably  satisfactory to Owner and
     Operator)  from the  Public  Authorities  Control  Board,  New  York  State
     Comptroller, and the New York Attorney General (as to form) shall have been
     obtained and be in full force and effect;

          (b)  The  closing  of the  purchase  of the  Plant  under  the  Option
     Agreement shall have occurred; and

          (c)  Each of the  Power  Supply  Agreement  Amendment  and the  Energy
     Management  Agreement  Amendment (each as defined in the Option  Agreement)
     shall have become effective in accordance with their respective terms.

     8.2. Term. The term of this Agreement  shall commence on the Effective Date
and expire May 28, 2013 unless earlier terminated.

     8.3. Termination by Operator.

          8.3.1.  Termination  Rights.  Operator has the right to terminate this
     Agreement without liability if:


                                       15



          (a)  Owner fails to pay any  undisputed  sum due under this  Agreement
               within 30 days after Owner has  received  notice of such  default
               from Operator;

          (b)  Owner  fails to perform any of its other  obligations  under this
               Agreement  in any  material  respect and such  failure  continues
               after  notice is provided by  Operator  to Owner,  provided  that
               Owner  shall  have  up  to 60  Business  Days  to  cure  or  make
               substantial progress towards curing such default;

          (c)  any  Governmental  Authority  suspends or revokes  any  approvals
               issued  by such  Governmental  Authority  to permit  Operator  to
               perform  its  obligations  under  this  Agreement,  or  otherwise
               prohibits  Operator from  performing its  obligations  under this
               Agreement,   provided   that  such   suspension,   revocation  or
               prohibition, as the case may be, was not the result of Operator's
               negligence  or failure  to comply  with the  requirements  of any
               Applicable Law, Permit or approval; or

          (d)  Owner is Bankrupt;

          8.3.2.  Payment.  In the event of a termination by Operator under this
     Section  8.3,  Owner shall pay  Operator for all amounts due for the period
     prior to such termination.

     8.4. Termination by Owner.

          8.4.1.  Termination  for Cause.  Owner has the right to terminate this
     Agreement for cause without liability if:

          (a)  Operator  fails to  perform  any of its  obligations  under  this
               Agreement  in any  material  respect and such  failure  continues
               after  notice is provided  by Owner to  Operator,  provided  that
               Operator  shall  have  up to 60  Business  Days  to  cure or make
               substantial progress towards curing such default;

          (b)  Operator is Bankrupt;

          (c)  Operator's  total  liability  under  this  Agreement  during  two
               consecutive  Calendar  Years  shall  have  exceeded  its  maximum
               liability  hereunder  for each such  Calendar  Year  pursuant  to
               Section 11.1;

          (d)  the KeySpan  Guaranty  shall be held to be  unenforceable  or the
               Guarantor  shall disavow,  or default in the  performance of, its
               obligations under the KeySpan Guaranty; or

          (e)  The  Availability  of the  Plant  in  any  two  consecutive  full
               Calendar  Years is less than ____ percent  (___%) other than as a
               result  of (i) any one or more  events  of  Force  Majeure,  (ii)
               Owner's acting  unreasonably  with respect to the approval of any
               Annual  Capital  Budget,  (iii) the  failure  of Owner to pay for
               expenses  included in any Annual  Capital  Budget or otherwise to
               cause or permit to be made any capital  improvement  or change to


                                       16



               the Plant  included in any Annual  Capital Budget on the schedule
               provided  therein or (iv) any  negligent act or omission of Owner
               or any of Owner's contractors, subcontractors, agents or invitees
               (other than Operator and any of its contractors,  subcontractors,
               agents and invitees).  [Specify 90% for only E.F.  Barrett Plant;
               85% for only Far Rockaway Plant; 85% for only the ICUs]

          8.4.2.  Termination for Convenience.  Owner has the right, by not less
     than 30 days prior written notice to Operator,  to terminate this Agreement
     with  respect to the Plant (or with respect to a discrete  generating  unit
     thereof) for convenience (a "Termination for Convenience") in the event of:

          (a)  The Plant's or such unit's, as the case may be, retirement; or

          (b)  The  Plant's  or such  unit's,  as the case may be,  shutdown  in
               connection with a repowering.

          In the event of a termination pursuant to this Section 8.4.2, Operator
          shall  be  entitled,  in  addition  to  all  other  amounts  due to it
          hereunder  as of  the  date  of  termination,  monthly  payments  (the
          "Transitional  Labor Cost  Payments")  equal to the product of (i) one
          twelfth  (1/12)  of  the  Transitional  Labor  Costs  times  (ii)  the
          applicable  percentage  set forth in table below.  Beginning  with the
          next  succeeding  month  following a termination  under Section 8.4.2,
          Owner shall make  Transitional  Labor Cost Payments to Operator on the
          fifteenth  (15th)  of each  month  until the  earlier  to occur of (a)
          Owner's having made forty eight (48) Transitional  Labor Cost Payments
          or (b) May 28, 2013.

                 Transitional Labor Cost               Percentage
                        Payment
                        (Month)

                             1 to 12                       100%
                             13 to 24                       75%
                             25 to 36                       50%
                             37 to 48                       25%


     8.5.  Plant  Condition  at End of Term.  Upon  the  expiration  or  earlier
termination of this Agreement, Operator shall remove its personnel and equipment
from the Plant in an orderly fashion. All special tools, improvements, inventory
of supplies, spare parts, safety equipment, O&M Manuals, documentation,  whether
or not marked as  confidential  or  proprietary  in  accordance  with Article 13
hereof (in each case as provided to, obtained by or provided by, and as modified
by  Operator  pursuant  to this  Agreement  during the Term) and any other items
furnished  by or on behalf of Operator  and paid for by Owner will remain at the
Plant and will  remain or become the  property of Owner  without any  additional


                                       17



charge.  Owner shall also have the right,  in its sole  discretion,  to directly
assume any  contracts  entered  into by or  obligations  of  Operator  solely in
connection  with the Services,  provided Owner also assumes sole liability under
such  contracts.  Operator  shall  execute  all  documents  and take  all  other
reasonable  steps  requested by Owner that are required to assign to and vest in
Owner  all  rights,  benefits,  interests  and  title in  connection  with  such
contracts or obligations and release Operator from same; provided, however, that
Owner shall  indemnify and hold  harmless  Operator from and against any and all
liabilities  arising  thereunder  after  the  date of any  such  assumption  and
release.  Prior to the effective date of such expiration or earlier termination,
Operator shall reasonably cooperate with Owner regarding the transition to a new
operator.  If Owner  requests  Operator to continue to provide  such  transition
cooperation after the effective date of such expiration or earlier  termination,
Operator shall provide such transition  cooperation  for a reasonable  period of
time and Owner  shall  reimburse  Operator  for all costs  incurred  during such
transition period.

                                    ARTICLE 9

                                    INSURANCE

     9.1. Operator Insurance Coverage.  Throughout the Term, except as otherwise
required  herein,  Operator  shall at its own cost,  procure and maintain,  with
insurers  having  an  A.M.  Best  policyholders'  rating  of "A" or  better,  or
self-insure in accordance with the requirements  made herein the following kinds
and amounts of insurance:

          9.1.1. Plant Liability  Insurance.  (A) Such insurance as will protect
     Operator  from  claims  which may arise out of or result  from  services of
     Operator as more fully described in this  Agreement,  whether such services
     be by the Operator or by a contractor  or by anyone  directly or indirectly
     employed  by any of them,  or by anyone  for whose  acts any of them may be
     liable,  claims for bodily  injury and property  damage of the kind usually
     and customarily  insured in a policy of: (i) commercial  general  liability
     insurance,  including  at a minimum,  coverage for  contractual  liability,
     products  and  completed  operations  liability,   and  (ii)  pollution  or
     environmental  legal liability insurance as an extension of (i) above or in
     a separate policy providing at the minimum sudden and accidental  pollution
     liability,  and (iii) automobile  liability insurance covering all vehicles
     owned,  operated,  used, or the responsibility of Operator and (B) All Risk
     Property  Insurance for the full replacement value of the Plant, with Owner
     named as the named  insured.  Operator shall cause Owner and its Affiliates
     with  the   employees,   agents,   officers,   directors,   trustees,   and
     representatives of each to be named as additional  insureds on the policies
     described  in (i),  (ii) and (iii) of clause  (A) above,  with each  policy
     having a combined  single  limit of not less than  $25,000,000.00  for each
     occurrence  (all  insurance  set forth in (i), (ii) and (iii) of clause (A)
     above  are  collectively  referred  to  as  "Plant  Liability  Insurance").
     Notwithstanding  anything to the  contrary in this Section 9.1 or any other
     provision  hereof,  Owner  shall  pay or  reimburse  Operator  for  Owner's
     proportionate  share of all  incremental  costs  incurred by Operator  with
     respect  to the  Plant  Liability  Insurance,  or  the  All  Risk  Property
     Insurance  referred to above,  as a result of the  transfer to Owner of the
     Plant and its ownership thereof.


                                       18



          9.1.2. Workers  Compensation and Employers Liability  Insurance.  Such
     insurance as will  protect  Operator  from claims by  employees  for bodily
     injury and occupational  disease:  (i) as required by the state of New York
     and any other applicable state or governmental authority and (ii) employers
     liability of not less than $25,000,000.00.

          9.1.3. General Insurance  Provisions.  The insurance  requirements set
     forth herein are to fully protect Owner and its Affiliates from any and all
     claims by  third-parties,  including  employees  of Operator or its agents,
     subcontractors or employees and shall provide the following:

          (a)  Operator  Insurance  is Primary.  The Plant  Liability  Insurance
               shall  apply as  primary  insurance  with  respect to any and all
               other  insurance  or   self-insurance   programs  carried  by  or
               maintained by Owner or its Affiliates.

          (b)  Evidence of Coverage. Operator shall, prior to the Effective Date
               of this Agreement, and within five (5) days after each request by
               Owner,  provide  certificates  of insurance to Owner's  insurance
               consultant evidencing all insurance policies, and if requested by
               Owner  or  Owner's  insurance  consultant,  a true,  correct  and
               complete copy of all such insurance  policies,  required pursuant
               to  this  Section  9.1.  If  the  Plant  Liability  Insurance  is
               available only on a claims-made basis, then the dates of coverage
               (including  the  retroactive  date)  will  be so  stated  on  the
               certificate of insurance.

          (c)  Waiver  of  Subrogation.  Owner and any  other  party  reasonably
               requested by Owner shall be granted waivers of subrogation by all
               insurers  providing  coverage  to  Operator  whether  or not such
               insurance policies are maintained pursuant to the requirements of
               this  Section  9.1 of the  Agreement,  including  any  amendments
               thereto, or otherwise.

          (d)  Severability of Insureds.  All policies  required in this Section
               9.1 shall  provide that (i)  inclusion of more that one person or
               organization as insured hereunder shall not in any way affect the
               rights of any such person or  organization as respects any claim,
               demand,  suit or judgment  made,  brought or recovered,  by or in
               favor of any other insured,  or by or in favor of any employee of
               such  other  insured,  and (ii) each  person or  organization  is
               protected  thereby in the same manner as though a separate policy
               had been issued to each,  but nothing  therein  shall  operate to
               increase the insurance company's liability as set forth elsewhere
               in the policy beyond the amount for which the  insurance  company
               would have been  liable if only one person or  interest  had been
               named as insured.

          (e)  Notice of Cancellation. All policies required in this Section 9.1
               may not be  cancelled or  materially  altered  without  giving at
               least thirty (30) days (or ten (10) days if such  cancellation is
               due to a  failure  to  pay  premiums)  prior  written  notice  of
               cancellation to Owner.


                                       19



          (f)  Deductibles.  Any and all  deductible or retention  amounts under
               policies  provided by Operator pursuant to this Section 9.1 shall
               be  assumed  by,  for the  account  of,  and at the sole  risk of
               Operator.

          (g)  Claims Made Policies. When the insurance policies required herein
               are issued on a "claims  made" or "claims  first made" form,  the
               retroactive date shall be on or before the Effective Date of this
               Agreement and such policies must be maintained for a period of at
               least five (5) years after Termination of this Agreement or shall
               be specifically endorsed to provide that claims made for at least
               five (5) years after the event or  occurrence  giving rise to the
               claim will be covered.

          9.1.4.   Operator  Disclosure  and  Cooperation.   Where  Operator  is
     providing  insurance coverage for benefit of Owner,  procuring insurance at
     request  of  Owner,  and/or  securing  coverage  at the  expense  of Owner,
     Operator  shall make complete and timely  disclosure of all  information as
     may be requested from time to time by Owner and provide full cooperation in
     securing such coverages as may be requested by Owner.  Such  disclosure and
     cooperation  shall include,  without limit, an exact copy of the applicable
     insurance policy wording, premium calculation, rating structure, disclosure
     of No Claims Bonuses and/or profit  sharing,  information  regarding  cargo
     shipments  and  related  surveys,  fees or  commissions  paid to brokers or
     consultants,  and/or other fees or expenses  which may be incurred by Owner
     in conjunction  with the procurement of said  insurance.  In the event that
     any Plant Liability Insurance policy or the coverage extended thereunder to
     Owner or  Owner's  Affiliates  is not  renewed  or is  canceled  and is not
     replaced by Operator or its Affiliates  with insurance  policies  providing
     comparable  coverage thereto, or if the Plant Liability Insurance policies,
     in Owner's or Owner's Affiliates' reasonable judgment, undergo any material
     change  such that the  coverage  afforded  thereunder  is not  commercially
     reasonable,  Owner and its Affiliates may secure separate general liability
     insurance   policies  and/or  pollution  legal  liability  policies  and/or
     automobile liability policies to provide comparable commercially reasonable
     insurance  coverage and Operator shall  reimburse Owner and its Affiliates,
     as the case may be, for the Operator's  proportionate share of the premiums
     paid by Owner and its Affiliates, as the case may be, for such insurance.

     9.2. Owner  Insurance  Coverage.  Throughout the Term,  Owner shall, at its
cost,  maintain  third party  liability  insurance  similar to that  required of
Operator and workers compensation insurance for its employees.

     9.3.  Self-Insurance,  etc.  Operator and Owner may carry such self insured
retentions,  deductibles,  or may  self-insure  any of the above Plant Liability
Insurance,  All Risk Property Insurance,  and Worker's Compensation insurance to
the extent that it is doing so on the Effective  Date or to such greater  extent
as may be approved in writing by Owner. Nothing in this Article 9 is intended to
nor shall it relieve  Owner or Operator of any of their  respective  obligations
and  liabilities  under  this  Agreement  including,  but not  limited  to,  the
indemnification obligations set forth in Article 10 below.


                                       20



                                   ARTICLE 10

                                 INDEMNIFICATION

     10.1.  Indemnification  of  Owner.  Operator  agrees  that  to  the  extent
permitted by law it will  protect,  indemnify  and hold  harmless  Owner and its
Affiliates and their respective representatives,  trustees, directors, officers,
employees and subcontractors (as applicable in the  circumstances),  (the "Owner
Indemnified  Parties")  from  and  against  (and  pay the  full  amount  of) any
Loss-and-Expense  and will  defend  the Owner  Indemnified  Parties in any suit,
including  appeals,  for personal injury to, or death of, any person, or loss or
damage  to  property  arising  out  of:  (a) the  gross  negligence  or  willful
misconduct of Operator;  (b) a violation of law by Operator which materially and
adversely  affects  (i) the  condition  or  operations  of the  Plant,  (ii) the
financial  condition of Owner,  (iii) the  performance or ability of Operator to
perform  its  obligations  under this  Agreement  or (iv) the cost of  providing
electric  service to the customers of the Plant (in each case other than for any
violation  of  environmental  Law for which  Owner or  Operator  may be strictly
liable  provided  Operator acted in a manner  consistent  with Prudent  Electric
Production Practices), or (c) a criminal violation of Law by Operator.  Operator
shall not, however,  be required to reimburse or indemnify any Owner Indemnified
Party for any Loss-and-Expense to the extent any such Loss-and-Expense is due to
(a) any matter for which Owner is  responsible  under Article 3 hereof,  (b) the
negligence or other wrongful  conduct of any Owner  Indemnified  Party,  (c) any
event of Force Majeure,  (d) any act or omission of any Owner  Indemnified Party
judicially   determined  to  be   responsible   for  or   contributing   to  the
Loss-and-Expense,  or (e) any  matter  for which the risk has been  specifically
allocated to the Owner  hereunder.  An Owner  Indemnified  Party shall  promptly
notify  Operator  of the  assertion  of any  claim  against  it for  which it is
entitled to be  indemnified  hereunder,  shall give Operator the  opportunity to
defend  such  claim,  and shall not settle the claim  without  the  approval  of
Operator.  Operator  shall be entitled to control the handling of any such claim
and to defend or settle any such claim, in its sole discretion,  with counsel of
its own choosing that is reasonably acceptable to the Owner Indemnified Parties;
provided,  however,  that, in the case of any such  settlement,  Operator  shall
obtain written  release of all liability of the Owner  Indemnified  Parties,  in
form and  substance  reasonably  acceptable  to the Owner  Indemnified  Parties.
Notwithstanding the foregoing, each Owner Indemnified Party shall have the right
to employ its own separate  counsel in connection  with,  and to  participate in
(but, except as provided below, not control) the defense of, such claim, but the
fees and  expenses  of such  counsel  incurred  after  notice to Operator of its
assumption  of the  defense  thereof  shall  be at the  expense  of  such  Owner
Indemnified Party unless:

          (i)  the  employment  of counsel by such Owner  Indemnified  Party has
               been authorized by the Operator;

          (ii) counsel to such Owner  Indemnified  Party  shall have  reasonably
               concluded that there may be a conflict on any  significant  issue
               between Operator and such Owner  Indemnified Party in the conduct
               of the defense of such claim; or

          (iii) Operator  shall not in fact  have  employed  counsel  reasonably
               acceptable to the Owner  Indemnified  Party to assume the defense
               of such claim within  twenty (20) days  following  the receipt by
               Operator of the notice from the Owner Indemnified Party regarding
               the assertion of the applicable claim,


                                       21



in each of  which  cases  the fees  and  expenses  of  counsel  for  such  Owner
Indemnified Party shall be at the expense of Operator;  provided, however, that,
with respect to clauses (ii) and (iii) of this  sentence,  Operator shall not be
obligated  to pay the fees and  expenses  of more than one law firm,  plus local
counsel  if  necessary  in  each  relevant  jurisdiction,  for  all  such  Owner
Indemnified Parties with respect to any claims arising out of the same events or
facts or the same series of events or facts. The Operator shall not be entitled,
without the consent of such Owner  Indemnified  Party,  to assume or control the
defense of any claim as to which counsel to such Owner  Indemnified  Party shall
have  reasonably  made  the  conclusion  that  there  may be a  conflict  on any
significant  issue  between  Operator  and such Owner  Indemnified  Party in the
conduct of the defense of such claim as set forth in clause (ii) above, provided
that the foregoing  limitation shall apply only with respect to those issues for
which there may be such a conflict. These indemnification provisions are for the
protection of the Owner  Indemnified  Parties only and shall not  establish,  of
themselves,  any liability to third parties. The provisions of this Section 10.1
shall survive termination of this Agreement.

     10.2.  Indemnification  of  Operator.  Owner  agrees  that  to  the  extent
permitted by law, it will protect,  indemnify and hold harmless Operator and its
Affiliates  and  their  respective  officers,   directors,   subcontractors  (as
applicable  in the  circumstances)  and  employees  (the  "Operator  Indemnified
Parties")  from and against  (and pay the full amount of) any  Loss-and-Expense,
and will defend the Operator Indemnified Parties in any suit, including appeals,
for personal  injury to, or death of, any person,  or loss or damage to property
arising out of any matter for which Owner is responsible under Article 3 hereof.
Owner shall not,  however,  be required to reimburse  or indemnify  any Operator
Indemnified   Party   for  any   Loss-and-Expense   to  the   extent   any  such
Loss-and-Expense  is due to (a) any matter  for which  Operator  is  responsible
under  Article 2 hereof or for which  Operator is required  to  indemnify  Owner
under Section 10.1, (b) the negligence or other wrongful conduct of any Operator
Indemnified  Party,  (c) any event of Force Majeure,  (d) any act or omission of
any Operator  Indemnified  Party judicially  determined to be responsible for or
contributing to the  Loss-and-Expense,  or (e) any matter for which the risk has
been specifically allocated to Operator hereunder. An Operator Indemnified Party
shall  promptly  notify Owner of the assertion of any claim against it for which
it is entitled to be indemnified hereunder,  shall give Owner the opportunity to
defend such claim, and shall not settle the claim without the approval of Owner.
Owner shall be entitled to control the  handling of any such claim and to defend
or settle  any such  claim,  in its sole  discretion,  with  counsel  of its own
choosing  that is  reasonably  acceptable  to the  Operator  Indemnified  Party;
provided, however, that, in the case of any such settlement,  Owner shall obtain
written release of all liability of the Operator  Indemnified Party, in form and
substance   reasonably   acceptable   to   the   Operator   Indemnified   Party.
Notwithstanding  the foregoing,  each Operator  Indemnified Party shall have the
right to employ its own separate  counsel in connection with, and to participate
in (but,  except as provided below, not control) the defense of, such claim, but
the fees and  expenses of such  counsel  incurred  after  notice to Owner of its
assumption  of the  defense  thereof  shall be at the  expense of such  Operator
Indemnified Party unless:

          (i)  the employment of counsel by such Operator  Indemnified Party has
               been authorized by Owner;


                                       22



          (ii) counsel to such Operator  Indemnified Party shall have reasonably
               concluded that there may be a conflict on any  significant  issue
               between Owner and such Operator  Indemnified Party in the conduct
               of the defense of such claim; or

          (iii) Owner  shall  not  in  fact  have  employed  counsel  reasonably
               acceptable to the Owner  Indemnified  Party to assume the defense
               of such claim within  twenty (20) days  following  the receipt by
               Owner of the notice from the Operator Indemnified Party regarding
               the assertion of the applicable claim,

in each of which  cases  the fees and  expenses  of  counsel  for such  Operator
Indemnified  Party shall be at the expense of Owner;  provided,  however,  that,
with respect to clause (ii) and clause (iii) of this  sentence,  Owner shall not
be obligated to pay the fees and expenses of more than one law firm,  plus local
counsel  if  necessary  in each  relevant  jurisdiction,  for all such  Operator
Indemnified Parties with respect to any claims arising out of the same events or
facts or the same  series  of  events or  facts.  Owner  shall not be  entitled,
without the consent of such Operator Indemnified Party, to assume or control the
defense of any claim as to which  counsel  to such  Operator  Indemnified  Party
shall have  reasonably  made the conclusion  that there may be a conflict on any
significant  issue  between  Owner and such  Operator  Indemnified  Party in the
conduct of the defense of such claim as set forth in clause (ii) above, provided
that the foregoing  limitation shall apply only with respect to those issues for
which there may be such a conflict. These indemnification provisions are for the
protection of the Operator Indemnified Parties only and shall not establish,  of
themselves,  any liability to third parties. The provisions of this Section 10.2
shall survive termination of this Agreement.

     10.3.  Notice. In the event that a party (the "Indemnified  Party") becomes
aware of any event or  circumstance  which might  entitle it to  indemnification
under this  Article  10, it shall  provide  the other  party (the  "Indemnifying
Party") with written  notification  within the earlier of thirty (30) days after
discovery of such event or  circumstance  or ten (10) Business Days prior to the
time any response is required by law regarding such event or circumstance.

     10.4. Deferral of Dispute Resolution. In the event that a party makes claim
for  indemnification  under this  Article  10 and such  claim is the  subject of
Dispute  Resolution  under  Article  6 of  this  Agreement,  then,  upon  mutual
agreement of the parties,  such Dispute  Resolution may be suspended pending the
resolution of the indemnification claim.

                                   ARTICLE 11

                        GENERAL LIMITATIONS OF LIABILITY

     11.1.  Total  Liability.  Operator's  total  liability  to Owner during any
Calendar  Year  during the Term for all claims of any kind,  whether  based upon
contract obligation, tort liability (including negligence) or otherwise, for any
loss or damage  arising out of,  connected with or resulting from this Agreement
during such each Calendar Year, or from the performance or breach thereof, shall
in no case exceed the Fuel  Management  Fee for such  Calendar  Year;  provided,
however,  that the foregoing  limitation of liability shall not apply to damages
resulting  from  Operator's  gross  negligence  or  willful   misconduct  or  to
Operator's  obligation to indemnify Owner against third party claims pursuant to
Article 10.


                                       23



     11.2.   Consequential  Damages.   Notwithstanding  any  provision  in  this
Agreement to the contrary,  neither party nor any of its respective  Affiliates,
shareholders,  principals,  directors,  trustees,  officers,  employees, agents,
subcontractors  or vendors shall be liable for  consequential or indirect losses
or damages, including loss of profit, cost of replacement for electricity,  cost
of capital, loss of goodwill,  increased operating costs or any other special or
incidental  damages or losses,  damages or  liabilities  under any agreements to
which Owner may be a party  irrespective  of whether  such claims are based upon
warranty, negligence, strict liability, contract, operation of law or otherwise.

     11.3. Owner Actions.  Operator shall not be liable for any claims,  losses,
damages,  costs, expenses,  fines, penalties and liabilities,  including but not
limited to Environmental Claims, arising out of (i) Owner's inability or refusal
to allocate  monies for  capital  expenditures  with  respect to the Plant after
Operator's specific, detailed, request for funds for specified projects pursuant
to  Section  4.1;  (ii)  failure  of Plant  equipment  that is not the result of
Operator's  or  its  agent's  gross  negligence  or  willful  misconduct  in the
operation  and  maintenance  of the Plant;  or (iii)  Operator's  or its agent's
compliance with any instructions or directives provided by Owner.

     11.4.  Survival and Application.  The waivers and disclaimers of liability,
indemnities,  releases from liability, and limitations on liability expressed in
this  Agreement  shall  survive the  expiration or earlier  termination  of this
Agreement  and shall apply at all times,  whether in contract,  equity,  tort or
otherwise,  regardless of the fault,  negligence  (in whole or in part),  strict
liability,  breach of contract  or breach of warranty of the party  indemnified,
released or whose  liabilities are limited,  and shall extend to the Affiliates,
shareholders,  principals, directors, officers and employees, agents and related
or  affiliated  entities  of  such  party,  and  their  Affiliates,  principals,
officers, directors and employees.

                                   ARTICLE 12

                              ENVIRONMENTAL MATTERS

     12.1. Site Conditions.

          12.1.1.  Disclosure.  Owner  agrees  that it will  fully  disclose  to
     Operator all  information,  both written and oral, that becomes known to or
     comes into the  possession of Owner after the  Effective  Date from time to
     time regarding the environmental conditions at the Plant, including any and
     all reports, audits or other correspondence from environmental  consultants
     and/or Governmental Authorities.

     12.2.  Insurance/Indemnification.   Owner  shall  cause  Operator  and  its
Affiliates to be designated as a named insured on any insurance  policy covering
Environmental Claims carried by Owner and its Affiliates.

     12.3.  Compliance.  Without limiting the generality of Section 2.1.2 above,
Operator shall comply with all requirements of Environmental Laws, including the
terms and conditions of all Permits issued or obtained under Environmental Laws,
in  connection  with  Operator's  provision of the Services.  Operator  shall be
responsible  for  complying  with all  reporting  obligations  that arise  under


                                       24



Environmental  Laws in connection with any Emergency or other event or condition
related to the Plant,  including  the  reporting of any release of any Hazardous
Materials.  Owner  shall  indemnify,  defend  and hold  harmless  Operator,  its
shareholders,   Affiliates,   officers,   directors,   employees,   agents   and
representatives  from and against any and all  Environmental  Claims directly or
indirectly  related  to or  arising  out of the  actual  or  alleged  existence,
generation,  use,  collection,  treatment,  storage,  transportation,  recovery,
removal,  discharge  or  disposal of  Hazardous  Materials  at the Plant  and/or
adjacent areas to the Plant,  except for  Environmental  Claims arising directly
out of the  gross  negligence  or  willful  misconduct  of the  Operator  or any
"Environmental  Loss" for  which  Operator  is liable  under  Section  D5,  Fuel
Indemnification  Provisions,  of  Appendix  D (as such term is  defined  in such
appendix).

     12.4.  New Source  Review  Requirements.  Notwithstanding  anything  to the
contrary in this Agreement,  Owner shall bear all  responsibility  and liability
for compliance with all requirements with respect to New Source Review under the
Clean Air Act and any similar provisions of any other Applicable Law, including,
without  limitation  (i)  all  responsibility  and  liability  with  respect  to
decisions  made by the Owner  (and the  consequences  thereof)  about  potential
regulatory   implications  of  routine   repairs,   upgrades,   maintenance  and
modifications  of the Plant and (ii) all  responsibility  and  liability for all
costs, penalties and other Losses and Expenses associated with New Source Review
relating  to the Plant  (whether  from  third-party  claims or  otherwise)  as a
consequence of such decisions (or the consequences thereof).

                                   ARTICLE 13

                                  NONDISCLOSURE

     13.1.  General.  Each party agrees,  to the extent  permitted by Applicable
Law, to hold in confidence any confidential  information  supplied to that party
and designated in writing as confidential by the supplier thereof ("Confidential
Information").  Each  party  further  agrees,  to the  extent  requested  by the
supplier of such information, to require its subcontractors,  vendors, suppliers
and employees to enter into  appropriate  nondisclosure  agreements  relative to
such Confidential  Information,  prior to the receipt thereof. The nondisclosure
obligations  set forth in this Article 13 shall survive for a period of five (5)
years following the expiration or earlier termination of this Agreement.

     13.2.  Exceptions.  The  provisions  of this  Article 13 shall not apply to
information  covered by any one of the following  exceptions or any  combination
thereof:  (i)  information  that was in the public domain prior to the receiving
party's  receipt  or that  subsequently  becomes  part of the  public  domain by
publication  or otherwise,  except by the receiving  party's  wrongful act; (ii)
information that the receiving party can demonstrate was in its possession prior
to receipt thereof from the disclosing party;  (iii)  information  received by a
party from a third party having no  obligation of  confidentiality  with respect
thereof; and (iv) information which was developed independently by the receiving
party without access to the disclosing party's Confidential Information.

     13.3. Required Disclosure.  Notwithstanding  anything in this Article 13 to
the contrary,  if any party is required by Applicable  Laws, or in the course of
administrative or judicial proceedings,  to disclose  Confidential  Information,


                                       25



such party may make such disclosure of such Confidential Information;  provided,
however,  that the party making such  disclosure  shall  immediately  notify the
other party of the requirement prior to disclosing the Confidential  Information
so that the disclosing  party may attempt to cause such third-party to treat the
Confidential   Information  in  a  confidential   manner  and  to  prevent  such
Confidential Information from becoming part of the public domain.

                                   ARTICLE 14

                             DOCUMENTS AND MATERIALS

     14.1. Documents and Materials. Operator shall maintain at the Plant current
as-built drawings, plans, specifications, descriptions, O&M Manuals, and related
materials  regarding  the Plant,  in each case to the extent such  documents and
materials  were  furnished to or prepared by Operator  during the Term. All such
materials and documents,  together with any materials and documents furnished to
Operator by Owner in connection with the Plant, shall be delivered to Owner upon
the expiration of the Term or earlier  termination of this Agreement;  provided,
however,  that  Operator  may retain and use  copies of all such  documents  and
materials in the course of its current and future business activities.

     14.2.  Review by Owner.  All materials and documents  referenced in Section
14.1 shall be  available  for review by Owner at all  reasonable  times and upon
reasonable notice during development and promptly upon completion thereof.

                                   ARTICLE 15

                            MISCELLANEOUS PROVISIONS

     15.1.  Agreement.  This Agreement  consists of the terms and conditions set
forth in the body hereof and the Appendices and other attachments hereto. In the
event of a conflict, variation or inconsistency between or among the Appendices,
other attachments and the terms and conditions set forth in the body hereof, the
terms  contained in the body hereof shall govern.  This  Agreement  contains the
entire agreement between the parties with respect to the subject matter hereof.

     15.2. Relationship of the Parties.  Operator is deemed to be an independent
contractor hereunder and shall not be deemed to be (i) a partner, joint venturer
or  affiliate of Owner,  (ii) an owner,  lessee,  or sublessee of the Plant,  or
(iii) an assignee or obligor under any  agreements  with respect to the Plant to
which it is not a party.

     15.3. KeySpan Guaranty.  Operator shall provide to Owner upon the execution
and delivery of this Agreement a guaranty from KeySpan  Corporation,  Operator's
parent, of Operator's  obligations  hereunder in the form of an amendment to the
Guaranty  Agreement  dated May 28, 1998,  from KeySpan  Corporation  to the Long
Island Power  Authority,  which amendment shall be substantially in the form set
forth in Appendix C (the "KeySpan Guaranty").

     15.4.  Assignment.  This  Agreement  shall not be assigned by either  party
without the prior written consent of the other party hereto, which consent shall
not be unreasonably  withheld,  delayed or conditioned.  This Agreement shall be
binding upon and shall inure to the benefit of the parties and their  successors
and permitted assigns.


                                       26



     15.5. Access.

          15.5.1.  Owner.  During the Term, Owner and its authorized  agents and
     representatives  shall  have  continuous  access at all times to the Plant.
     Owner shall comply with all Operator access and safety  requirements  while
     at the Plant.  Upon the  request  of Owner,  or its  authorized  agents and
     representatives,  Operator  shall  provide  such Persons with access to any
     Plant operating data and logs.

          15.5.2. Cooperation. During any such inspection or review of the Plant
     undertaken   during  the  Term,   Owner  and  its  authorized   agents  and
     representatives  must  strictly  comply with all of  Operator's  safety and
     security   procedures,   and   Owner   and  its   authorized   agents   and
     representatives  must conduct such  inspection and reviews in such a manner
     as to not unreasonably interfere with Operator's activities.  Operator also
     shall reasonably  cooperate with Owner in allowing other visitors access to
     the Plant under conditions mutually agreeable to the parties.

     15.6.  Not for  Benefit of Third  Parties.  Except as  otherwise  expressly
provided  herein,  this Agreement and each and every provision hereof is for the
exclusive  benefit of the parties hereto and is not for the benefit of any third
party.

     15.7. Force Majeure.

          15.7.1.  Events Constituting Force Majeure. As used in this Agreement,
     "Force  Majeure" means any act, event, or condition that causes delay in or
     failure of performance of obligations  under this  Agreement,  or otherwise
     materially and adversely affects a party's ability to perform, if such act,
     event or  condition  (i) is  beyond  the  reasonable  control  of the party
     relying  thereon,  (ii) is not the  result  of the  willful  misconduct  or
     negligent act or omission of such party,  and (iii) is not an act, event or
     condition,  the risk or consequence of which such party  expressly  assumed
     under this  Agreement,  and then only to the extent that such Force Majeure
     event cannot be cured, remedied,  avoided, offset, or otherwise overcome by
     the prompt  exercise  of  reasonable  due  diligence  of the party  relying
     thereon including, but not limited to:

          (a)  acts  of  God,  accident,   flood,  sabotage,   fire,  explosion,
               vehicular accident, epidemic,  earthquake,  lighting, drought, or
               similar occurrence,  acts of utilities,  transmission  outages or
               sudden or  disruptive  electrical  events or  disturbance  on the
               transmission  or  distribution  system,  disruption  of  Fuel  or
               materials supply,  acts of public or foreign enemy, war and other
               hostilities,  invasion, blockade,  insurrection,  rebellion, riot
               and disorder,  strikes or labor  disturbances,  general arrest or
               restraint of government and people,  civil disturbance or similar
               occurrence;

          (b)  entry of an  injunctive or  restraining  order or judgment of any
               Governmental  Authority,  if such  order or  judgment  is not the
               result  of  the  act,  or  failure  to  act,  of a  party  or its
               subcontractors or suppliers; or


                                       27



          (c)  suspension,  termination,  interruption  of, or failure to obtain
               any Permit required or necessary for the construction,  operation
               or   maintenance   of  the  Plant,   provided  such   suspension,
               termination,  interruption  or  failure  is not the result of the
               action  or   inaction   of  a  party   relying   thereon  or  its
               subcontractors or suppliers.

          Notwithstanding  the  foregoing,  events  of  Force  Majeure  excusing
     Operator's  obligations to operate and maintain the Plant shall not include
     (i) a strike or labor action by Operator's employees at the Plant; (ii) the
     failure of any subcontractor, supplier or vendor of Operator to perform its
     obligations  under any agreement or  undertaking  with Operator  unless the
     failure of such  subcontractor,  supplier or vendor to perform is caused by
     an event or condition  that would  qualify as an event of Force Majeure for
     Operator;  or (iii) any change in general  economic  conditions or costs of
     materials, supplies and labor.

          15.7.2.  Event of Force Majeure.  Except for the obligations of either
     party to make  payments  of  amounts  due to the  other  party,  the  party
     claiming Force Majeure shall be excused from  performance  and shall not be
     considered  to be in  default  in  respect  of any  obligation  under  this
     Agreement to the extent that a failure of  performance  of such  obligation
     shall be due to Force  Majeure.  If either  party's  ability to perform its
     obligations  under this Agreement is affected by Force  Majeure,  the party
     claiming such inability  shall: (i) promptly notify the other party of such
     Force Majeure and its cause and confirm the same in writing within five (5)
     Business Days of discovery of the event or circumstances  constituting such
     Force Majeure; (ii) immediately supply such available information about the
     event or circumstances constituting the Force Majeure and the cause thereof
     as is  reasonably  requested  by the other  party;  and  (iii)  immediately
     initiate removal of the cause of the Force Majeure or, if immediate removal
     is not possible, to mitigate the effect thereof.

          15.7.3.  Scope.  The  suspension of  performance  due to Force Majeure
     shall be of no  greater  scope and no longer  duration  than that  which is
     necessary.  The excused  party  shall use its  reasonable  best  efforts to
     remedy its inability to perform.

     15.8.  Strikes.  In the event that the Plant is unable to supply  capacity,
energy or  ancillary  services  to Owner due to a strike or other  form of labor
action  by  Operator's  employees,  or  the  employees  of  its  contractors  or
subcontractors,  Owner  shall have the right to operate  the Plant and to retain
such other  personnel or agents as Owner in its sole  discretion and at its sole
cost and expense deems necessary or advisable for such purposes.  For so long as
Owner  operates the Plant and/or  retains such other  personnel,  the  Allocated
Fixed O&M Costs Payment, Variable Charge Payment and the Fuel Management Fee, as
applicable,  payable under this Agreement shall be reduced (but not less than to
zero) by an amount  equal to Owner's  costs to operate and  maintain  the Plant;
provided,  however  that  Operator  shall resume  operation  of the Plant,  upon
termination of such strike.

     15.9. Amendments. No amendments or modifications of this Agreement shall be
valid unless evidenced in writing and signed by duly authorized  representatives
of both parties.


                                       28



     15.10. Survival. Notwithstanding any provisions herein to the contrary, the
provisions  set forth in Articles 6, 10,  11,12 and 13, and Sections  5.3,  7.3,
8.5, 15.1, 15.2, 15.6, 15.7, 15.10, 15.12, 15.15, 15.16, 15.17, 15.18, and 15.19
shall  survive  in full force the  expiration  or  earlier  termination  of this
Agreement.  In addition,  any and all rights and obligations accruing under this
Agreement  prior to the  termination  date or expiration date shall survive such
termination or expiration.

     15.11.  No Waiver.  It is understood  and agreed that any delay,  waiver or
omission by Owner or Operator to exercise  any right  arising from any breach or
default by Owner or Operator  with respect to any of the terms,  provisions,  or
covenants  of this  Agreement  shall not be construed to be a waiver by Owner or
Operator, as the case may be, of any subsequent breach or default of the same or
other terms, provisions or covenants on the part of the other party.

     15.12.  Notices.  Any  written  notice  required  or  permitted  under this
Agreement  shall be deemed to have been duly given on the date of  receipt,  and
shall be either  delivered  personally to the party to whom notice is given,  or
mailed to the party to whom notice is to be given,  by  facsimile or first class
registered or certified mail,  return receipt  requested,  postage prepaid,  and
addressed  to the  addressee  at the most recent  address  specified  by written
notice given to the other party in the manner  provided in this  Article  15.12.
The parties' addresses for such notices are as follows:

                  To Operator:

                  [KeySpan Corporation Subsidiary]
                  c/o KeySpan Corporation
                  175 E. Old Country Road
                  Hicksville, NY 11801
                  Attention: James Brennan
                  FAX No.: [____________]

                  To Owner:

                  Long Island Lighting Company (d/b/a LIPA)
                  333 Earle Ovington Blvd, Suite 403
                  Uniondale, New York 11553
                  Attention: Chief Operating Officer
                  w/copy to: General Counsel
                  FAX No.: [____________]

     15.13. Representations and Warranties.

          15.13.1.  Owner Representations and Warranties.  Owner, as of the date
     of this Agreement,  makes the following  representations  and warranties as
     the basis for its undertakings contained herein:

          (a)  Owner  has all  requisite  power and  authority  to  execute  and
               deliver this  Agreement  and to perform  each of its  obligations
               hereunder. Owner has duly authorized the execution,  delivery and
               performance of this Agreement. This Agreement is the legal, valid


                                       29



               and binding obligation of Owner and (assuming that this Agreement
               has been duly authorized,  executed and delivered by Operator) is
               enforceable against Owner in accordance with its terms.

          (b)  The execution and delivery of this Agreement, the consummation of
               the transactions  contemplated  herein and the fulfillment of and
               compliance   with  the   provisions  of  this  Agreement  do  not
               materially  conflict with or constitute a material breach of or a
               material default under any of the terms, conditions or provisions
               of any law, any order of any court or other agency of government,
               the   organizational   documents  of  Owner  or  any  contractual
               limitation,  restriction or outstanding trust indenture,  deed of
               trust, mortgage,  loan agreement,  other evidence of indebtedness
               or any other agreement or instrument to which Owner is a party or
               by  which it or any of its  property  is  bound  or  result  in a
               material  breach  of or a  material  default  under  any  of  the
               foregoing.

          (c)  All  organizational  consents and  authorizations,  and all other
               actions  required for Owner to execute and deliver this Agreement
               have been obtained or completed.

          (d)  Owner has obtained,  or will obtain as of the Effective Date, all
               Permits  required  to be  obtained  by Owner  for the  ownership,
               operation, maintenance, and repair of the Plant.

          15.13.2. Operator Representations and Warranties.  Operator, as of the
     date of this Agreement,  makes the following representations and warranties
     as the basis for its undertakings contained herein:

          (a)  Operator  has all  requisite  power and  authority to execute and
               deliver this  Agreement  and to perform  each of its  obligations
               hereunder.  Operator has duly authorized the execution,  delivery
               and performance of this  Agreement.  This Agreement is the legal,
               valid and binding  obligation of Operator and (assuming that this
               Agreement  has been duly  authorized,  executed and  delivered by
               Owner) is  enforceable  against  Operator in accordance  with its
               terms.

          (b)  The execution and delivery of this Agreement, the consummation of
               the transactions  contemplated  herein and the fulfillment of and
               compliance   with  the   provisions  of  this  Agreement  do  not
               materially  conflict with or constitute a material breach of or a
               material  default  under,   any  of  the  terms,   conditions  or
               provisions  of any law, any order of any court or other agency of
               government,   the  Operator's  organizational  documents  or  any
               contractual  limitation,  corporate or partnership restriction or
               outstanding  trust  indenture,  deed  of  trust,  mortgage,  loan
               agreement,  other evidence of indebtedness or any other agreement
               or instrument to which  Operator is a party or by which it or any
               of its  property is bound or result in a material  breach of or a
               material default under any of the foregoing.


                                       30



          (c)  All  organizational  consents and  authorizations,  and all other
               actions  required  for  Operator  to  execute  and  deliver  this
               Agreement have been obtained or completed.

          (d)  Operator  has either  obtained  or will  obtain all  licenses  or
               certificates  that it or its  employees  are  required  to secure
               under Applicable Law to perform the Services.

     15.14.   Counterparts.   The  parties  may  execute   this   Agreement   in
counterparts,  which  shall,  in the  aggregate,  when  signed  by both  parties
constitute one and the same instrument;  and, thereafter, each counterpart shall
be deemed an original instrument.

     15.15.  Governing Law. This Agreement  shall be  interpreted,  governed and
construed  in  accordance  with the laws of the  State of New York.  Any  action
arising  out of or  relating  to this  Agreement  shall be  brought  in New York
Supreme Court,  Nassau County,  or United States  District Court for the Eastern
District of New York.

     15.16. Captions;  Appendices.  Titles or captions of the articles contained
in this  Agreement  and the  Appendices  annexed  hereto are inserted  only as a
matter of convenience and for reference,  and in no way define,  limit,  extend,
describe  or  otherwise  affect the scope or meaning  of this  Agreement  or the
intent of any provision hereof.

     15.17. Non-Recourse.  Except for Owner's rights under the KeySpan Guaranty,
neither  party  shall  have  any  recourse  against  any  of the  other  party's
Affiliates and each party expressly waives its rights of recourse  against,  and
releases from  liability,  the other party's  Affiliates.  Each party shall look
solely to the other party,  and the assets  thereof,  to effect recovery of such
party's claims against the other party.

     15.18. Severability. The invalidity or unenforceability of any provision of
this Agreement  shall be determined  only by a court of competent  jurisdiction,
and the parties hereby agree to negotiate an equitable adjustment to the invalid
or  unenforceable  provisions with a view toward  effecting the purposes of this
Agreement;  the  validity  or  enforceability  of the  remaining  provisions  or
portions or applications thereof, shall not be affected thereby.

     15.19. Rules of Interpretation.  The terms and provisions of this Agreement
shall be interpreted and construed as follows: (a) words of the masculine gender
shall  include  corresponding  words of the feminine or neuter  genders and vice
versa;  (b) the plural shall include the singular and vice versa; (c) unless the
context  indicates  otherwise,  all  references  herein to  Articles,  Sections,
paragraphs,  appendices, schedules, and Appendices shall refer, respectively, to
the Articles, Sections, paragraphs, appendices, schedules and Appendices of this
Agreement;  (d) the words  "includes" or "including"  mean  "including,  but not
limited to" and are not limiting;  (e) any reference to an agreement, a contract
or  any  other  document  means  the  same  as  it  may  be  amended,  modified,
supplemented  or replaced from time to time,  unless  otherwise  noted;  (f) any
reference to a Person  includes such Person's  successors  and assigns;  and (g)
"ensure",  shall not be construed as a guarantee, but shall imply only a duty to
use reasonable  effort and care,  consistent  with Prudent  Electric  Production
Practices.


                                       31



     15.20.  Private  Use  Rules.  In the event that it is  determined  that the
compensation  provisions  contained  in this  Agreement  do not comply  with the
applicable  Internal  Revenue  Service  "private  use" rules,  the parties shall
cooperate  with each other and  negotiate  in good faith to amend or modify such
compensation  provisions so that they do so comply while  retaining the relative
economic benefits of the parties under this Agreement.

     15.21.  State Law  Requirements.  All  contracts  entered into by Owner are
required under New York State law to contain  certain terms and  conditions,  as
set forth in Appendix E hereto and the  provisions of such Appendix E are hereby
deemed  incorporated  in this  Agreement  at this  place.  To the  extent of any
conflict  between any other provision of this Agreement and Appendix E, Appendix
E shall control. The Operator shall comply with such terms and conditions during
the Term of this Agreement.












                                       32




     IN WITNESS WHEREOF,  the parties have executed this Agreement through their
duly  authorized  officers  as of the date set  forth  in the  preamble  to this
Agreement.


LONG ISLAND LIGHTING COMPANY                [KEYSPAN CORPORATION
(d/b/a LIPA)                                SUBSIDIARY]
By: ________________________                 By: __________________________
Name: _______________________                Name: ________________________
Title: _______________________               Title: _______________________












                                       33



                                  APPENDIX "A"
                                  ------------

                                EXCLUDED SERVICES
                                -----------------

     The following costs and other obligations are Owner's responsibility:

     1.   Property Taxes

     2.   Inventory Taxes

     3.   Emission credits and allowances

     4.   Costs imposed by the New York  Independent  System  Operator (or other
          regional   transmission   or  electrical   pool  operator)   rules  or
          procedures,  including  any  costs  associated  with the sale or other
          marketing of any energy produced by the Plant.

     5.   Costs  relating to  unforeseen,  sudden  major  equipment or component
          failures  not  covered  under  equipment  warranty,   including  major
          component failures.

     6.   Initial  inventory of spare parts,  consumables and tools, and storage
          of spare parts.

     7.   Costs to replace  Plant  equipment  to the extent  that such costs are
          capital expenditures and all other capital improvements.

     8.   Cost  of any  capital  expenditures  for  alterations,  modifications,
          improvements  or  additions  to the Plant  which are  required  by any
          Governmental Authority or otherwise required to comply with Applicable
          Laws.

     9.   Costs  subject  to  Owner's  indemnification  obligations  under  this
          Agreement.

     10.  Costs to remedy any notice of  violation or  non-compliance  issued by
          any  Governmental  Authority  with  regard  to  air  emissions,  water
          discharges,  noise  emissions,   hazardous  discharges  or  any  other
          environmental, health or safety problems affecting the Plant.


                                      A-1




                                  APPENDIX "B"
                                  ------------

                        ALLOCATED FIXED O&M COST PAYMENT
                        --------------------------------

     On the Effective Date and for the first Calendar Year, the Allocated  Fixed
O&M Cost Payment shall be an amount determined as follows:

AFOMCP = (CC + $7,120,000 - PT - DEP- RORB - TAXES - CARC - ASC)*(PE/TE)/12

     Where:

     AFOMCP = Allocated Fixed O&M Charge Payment
     CC   = The Capacity Charge in effect under the PSA.
     PT   = The component for property taxes included in the Capacity Charge.
     DEP  = The component for depreciation included in the Capacity Charge.
     RORB = The  component  for  return on rate base  included  in the  Capacity
            Charge.
     TAXES = The  component for state and federal  income taxes  included in the
             Capacity Charge.
     CARC = The  component  for common assets  recovery  charge  included in the
            Capacity Charge.
     ASC  = The component for the amortization of security costs included in the
            Capacity Charge.
     PE   = The  total  number of  operator's  full  time  equivalent  employees
          working  at  the  Plant  as of  the  date  immediately  preceding  the
          Effective Date, excluding, however, any MSD workers. In no event shall
          PE  exceed  the  average  number  of  such  employees  for the two (2)
          Calendar Years immediately preceding the Effective Date.
     TE   = The total number of full time equivalent employees working as of the
          day  immediately  preceding  the  Effective  Date for  Operator or its
          affiliates at all  generating  facilities  covered under the PSA as of
          such date.

     On January 1 of each  Calendar  Year during the Term  through  December 31,
2008, the Allocated  Fixed O&M Charge shall be equal to the Allocated  Fixed O&M
Charge  for the  previous  year plus the Labor Cost  Index  Adjustment  plus the
Benefit Cost Index Adjustment, where:

          "Labor Cost Index  Adjustment  (Production)"  means the sum of (1) the
          average  monthly labor costs for the Plant  contained in the Allocated
          Fixed O&M  Charge  Payments  for the prior  Calendar  Year and (2) the
          product of (a) the Defined Labor Index times (b) average  monthly base
          labor costs  contained in the Allocated  Fixed O&M Charge Payments for
          the prior Calendar Year.

          "Defined Labor Index" means the percentage change for the twelve month
          period ending on the preceding  September 30 for the  Employment  Cost
          Index  for  Wages  and  Salaries  Only,   Private  Industry   Workers,
          Northeast,  Not Seasonally Adjusted, as published by the United States
          Bureau of Labor Statistics.


                                      B-1




          "Benefit  Cost  Index  Adjustment"  means  the sum of (1) the  average
          monthly  benefit  costs  contained in the  Allocated  Fixed O&M Charge
          Payments for the Plant in the prior  Calendar Year and (2) the product
          of (a) the Defined Labor index times (b) average  monthly base benefit
          costs  contained in the  Allocated  Fixed O&M Charge  Payments for the
          prior Calendar Year.

     For each  Calendar  Year  during  the term after  December  31,  2008,  the
Allocated  Fixed O&M Charge  shall be an amount to be agreed upon by the parties
based  upon a cost of  service  analysis.  If the  parties do not agree on a new
Allocated  Fixed O&M Charge for the Calendar Years after December 31, 2008, then
such dispute shall be resolved in accordance with Article 6.













                                      B-2




                                  APPENDIX "C"
                                  ------------

                       FORM OF KEYSPAN GUARANTY AMENDMENT

                         AMENDMENT TO GUARANTY AGREEMENT

     THIS  AMENDMENT  TO  THE  GUARANTY  AGREEMENT  is  made  and  dated  as  of
[_________________]  (this "Amendment") to the Guaranty  Agreement,  dated as of
May 28,  1998 (the  "Guaranty"),  from  KEYSPAN  CORPORATION  (f/k/a  Marketspan
Corporation),  a corporation  organized and existing under the laws of the State
of New York (together with any permitted  successors and assigns hereunder,  the
"Guarantor"), to LONG ISLAND POWER AUTHORITY (together with its subsidiaries and
other permitted assignees of the Agreements, the "Authority").


                                    RECITALS

     WHEREAS,   Long  Island  Lighting  Company  d/b/a  LIPA  (the  "Owner"),  a
wholly-owned  subsidiary of the Authority,  and [KeySpan Corporation Subsidiary]
(the "Operator"),  a subsidiary of the Guarantor are parties to an Operation and
Maintenance  Agreement,  dated  as of the date  hereof  (the  "O&M  Agreement"),
whereby the Operator has agreed to operate and maintain the Plant (as defined in
the O&M Agreement) upon the terms and conditions set forth in the O&M Agreement;
and

     WHEREAS,  pursuant to Section 15.3 of the O&M  Agreement,  the Guarantor is
entering into this Amendment to guarantee the  obligations of the Operator under
the O&M Agreement on the terms and subject to the conditions of the Guaranty.

     NOW, THEREFORE,  in consideration of the foregoing and the mutual covenants
and  agreements   hereinafter   set  forth  and  for  other  good  and  valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows:

     Section 1.  Definitions.  All capitalized  terms used in this Amendment and
not otherwise defined shall have the meanings assigned to them in the Guaranty.

     Section 2.  Amendment to the Guaranty  Agreement.  The parties hereby agree
that (i) the term  "Agreements"  as used in the  Guaranty  shall  be  deemed  to
include the O&M  Agreement  for all  purposes of the  Guaranty and (ii) the term
"Subsidiaries"  as used in the Guaranty  shall be deemed to include the Operator
for all purposes of the Guaranty.

     Section 3. Miscellaneous

          (a) Incorporation by Reference.  Sections 1.2(A),  (B), (C) and (D) of
     the Guaranty  shall be  incorporated  by  reference  herein as if fully set
     forth herein.

          (b) Entire  Agreement;  Authority.  The  Guaranty,  as amended by this
     Amendment,  together  with the Agreement  and the  Transaction  Agreements,
     constitute the entire agreement  between the parties hereto with respect to


                                      C-1




     the transactions contemplated by the Guaranty. Nothing in this Amendment is
     intended to confer on any person other than the  Guarantor,  the  Authority
     and their  successors  and  assigns as  permitted  hereunder  any rights or
     remedies under or by reason of this Amendment.

          (c)  Counterparts.  This  Amendment  may be  executed in any number of
     original  counterparts.  All such counterparts shall constitute but one and
     the same Amendment.

          (d) Applicable  Law. This Amendment shall be governed by and construed
     in accordance with the applicable laws of the State of New York.

          (e) Full Force and Effect of Guaranty.  Notwithstanding  the amendment
     and extension of the Management  Services  Agreement,  or the amendments to
     the  Power  Supply  Agreement  and the  Energy  Management  Agreement,  the
     Guaranty,  as modified by this  Amendment,  and as this Amendment is made a
     part thereof, shall remain in full force and effect.







                                      C-2






          IN WITNESS  WHEREOF,  the parties  have caused  this  Amendment  to be
     executed and delivered by their duly authorized officers or representatives
     as of the date first above written.

                                                LONG ISLAND POWER AUTHORITY



                                                By  ___________________________
                                                Name:
                                                Title:



                                                KEYSPAN CORPORATION



                                                By  ___________________________
                                                Name:
                                                Title:








                                      C-3





                                  APPENDIX "D"
                                  ------------

                            FUEL MANAGEMENT SERVICES
                            ------------------------

     D1.  General.  Operator shall manage all aspects of the fuel supply for the
Plant including determinations regarding the type of fuel used for operating the
Plant and the source of such fuel  supply  taking into  account the  purchase of
alternate  sources of  electricity  in lieu of  electricity  from the Plant when
economic.  Owner will compensate  Operator for such fuel management  services in
accordance  with the terms of this Agreement.  In this respect,  Operator shall,
among other things:

          (a)  Acquire   required   gas  supplies   which   includes  a  mix  of
     Interruptible and Firm Gas Supplies as deemed appropriate;

          (b) Acquire  required fuel oil supplies in accordance  with generating
     unit specific requirements as determined by Operator;

          (c) Negotiate,  execute and administer fuel supply  contracts with one
     or more entities;

          (d)  Obtain  and  schedule  transportation  for all  fuel  deliveries,
     including daily nomination and dispatch;

          (e)  Arrange  for  the   displacement  of  gas  across  KeySpan's  gas
     distribution system and the New York Facilities to facilitate deliveries to
     the Plant; and

          (f)  Arrange-for  the  delivery,  receipt,  fuel  analysis,  handling,
     storage, local and on site transportation and use of Fuel.

Unless  otherwise  arranged and agreed to between  Owner and  Operator,  all gas
supplies  to be used at the Plant will be  Interruptible  Gas  Supplies or short
term Firm Gas Supplies  with  contracts  extending no longer than one month from
the date  entered  into,  all of which are System  Interruptible  Gas  Supplies.
Operator  will  arrange for the most  cost-effective  fuel for use at the Plant,
subject to the existing  obligations of KeySpan Energy Delivery-Long Island with
respect to the delivery of gas to its  customers.  Operator will arrange for Gas
Balancing  services  to be  provided  associated  with use of gas at the  Plant.
Operator  will provide these  services  from existing  assets of Operator or its
affiliates.  Operator will not contract for  additional  firm assets  (including
storage,  pipeline  capacity  or swing gas supply)  specifically  for use in the
Plant unless Owner and Operator agree to the contract.  Such  Interruptible  Gas
Supplies will be provided only as long as it is available for use, in the Plant.

     D2. Fuel  Measurement.  To the extent not  already in place,  installation,
maintenance and operation of all fuel metering and telemetering  equipment shall
be undertaken by Operator in accordance with applicable  requirements.  Operator
shall  cooperate  with  Owner in Owner's  verification  of the  accuracy  of all
measurements of fuel made by Operator and Owner shall have access to all records
of Operator necessary for such purpose.


                                      D-1




D3. General Fuel Service Requirements.

     D3.1 Minimization of Costs. In providing the fuel,  Operator shall use best
efforts to minimize fuel costs for the Plant, such efforts being consistent with
(i) all applicable  insurance  policies,  (ii) all applicable  prudent  industry
practices and standards,  including Prudent Electric Production Practices, (iii)
all  applicable  operating  and contract  constraints  for fuel  delivery,  (iv)
Operator's collective bargaining agreements and (v) applicable Laws.

     D3.2 Accounting Controls.  Operator,  on a monthly basis, shall provide, or
cause to be provided, all accounting,  bookkeeping,  and administrative services
in connection  with the fuel costs,  such  accounting to be consistent  with the
FERC Uniform  System of Accounts and generally  accepted  accounting  principles
consistently  applied.  In areas of conflict,  FERC accounting  principles shall
control.  All records  relating to such services  shall be subject to review and
audit in accordance with Section 7.3.

D4. Ownership of Fuel.

     D4.1  Ownership of the Fuel.  In order to eliminate  any  ambiguity in this
Agreement with respect to the ownership of the Fuel purchased by Operator or any
Affiliate of Operator on behalf of Owner pursuant to this  Agreement,  Owner and
Operator agree as follows:  (i) Owner  acknowledges  that it is the owner of the
Fuel; and (ii) Operator  acknowledges  and confirms that it is obligated to, and
agrees that it will,  indemnify the Owner Indemnified  Parties in the manner set
forth in this Appendix D for any Loss, as defined in this Appendix D.

     D4.2 Owner's Agreements.  Owner hereby  acknowledges  ownership of the Fuel
throughout the effective term of this Agreement and agrees that from the date of
this Agreement it will:

          (i) take no position  inconsistent  with its  ownership of the Fuel in
     any filing with a  governmental  agency or  department  (including  any tax
     return) or in any  judicial  or  administrative  proceeding  (other  than a
     judicial  proceeding in which the  provisions  of this  Agreement may be at
     issue);

          (ii)  account  for the Fuel as an asset of Owner and cause the Fuel to
     be reflected as such in its financial statements; and

          (iii)  provide from time to time such further  assurances  and written
     confirmation of its ownership of the Fuel as shall  reasonably be requested
     by Operator.

D5. Fuel Indemnification Provisions

     D5.1 General Indemnity.  Operator acknowledges and confirms that during the
Term it is  obligated  to, and agrees that it will,  indemnify,  defend and hold
harmless the Owner Indemnified Parties against any and all Losses (as defined in
Section D5.2,  below),  other than any Losses caused by the negligence,  willful
misconduct  or breach  of  statutory  or  regulatory  duty of one or more  Owner
Indemnified Parties; provided, however that no Loss shall be deemed to have been
caused  by  the  negligence,  willful  misconduct  or  breach  of  statutory  or
regulatory duty of any Owner  Indemnified  Party if any action or failure to act
giving rise to such Loss is that of Operator or any Affiliate of Operator acting


                                      D-2





on behalf of any Owner Indemnified Party pursuant to one of this Agreement,  the
Energy Management Agreement or the Power Supply Agreement. In no event shall the
term "Loss" and "Losses" mean Economic  Loss, as that term is defined in Section
D5.2 below.

     D5.2 Certain  Definitions.  As used in this Appendix D, the term "Loss" and
"Losses"  mean  any  loss,  claim,  damage,  liability,  demand,  action,  suit,
judgment,  assessment,  penalty,  award,  cost  and/or  expense  suffered  by or
asserted against any Owner  Indemnified  Party or to which any Owner Indemnified
Party may become subject  insofar as any such loss,  claim,  damage,  liability,
demand, action, suit, judgment, assessment,  penalty, award, cost and/or expense
arises  out of, or is based  upon,  Owner's  ownership  of the Fuel,  including,
without  limitation,  any  Environmental  Loss, Fuel Loss,  General Claim and/or
Collection  Expense,  each as defined below.  For the purpose of defining "Loss"
and exclusions  thereto and as otherwise used in this Appendix D, in addition to
the definitions  set forth in Article 1 of this  Agreement,  the following terms
are used with the meanings set forth below:

     "Attorneys' Fees" means and includes all reasonable costs, fees and charges
(including,  without  limitation,  charges for  disbursements)  of any attorney,
legal assistant and paralegal,  and shall include both outside counsel  retained
by any Owner  Indemnified  Party and in-house counsel for any Owner  Indemnified
Party and shall  also  include,  without  limitation,  expert  witness  payments
(whether consulting or testifying) and other court costs whether or not incurred
in a judicial or administrative proceeding.

     "Collection  Expense"  means any expense  (including,  without  limitation,
Attorneys'  Fees)  incurred  by an Owner  Indemnified  Party in order to  obtain
payment from Operator or an insurer in respect of a Loss or otherwise to enforce
the terms of this Appendix D.

     "Economic Loss" shall mean any loss in economic value of the Fuel resulting
from, but not limited to, such factors as: changes in the unit price of the Fuel
in the open market, changes in the cost of transporting the Fuel to the point of
consumption,  changes in the cost of storing the Fuel prior to consumption,  and
changes in the cost of injecting or withdrawing the Fuel.  "Economic Loss" shall
also mean any loss  resulting  from  trading  in  financial  derivatives  in the
commodities  markets that are designed to hedge price risk  associated  with the
Fuel,  but in no event will any loss that falls within the  definition  of "Fuel
Loss" (as that term is  defined in this  Appendix  D) also be  considered  to be
"Economic Loss."

     "Fuel  Environmental  Law" means and  includes  any present  and/or  future
federal,  state  or  local  law,  ordinance,  code,  rule,  regulation  or order
regulating,   relating  to,  or  imposing  liability  or  standards  of  conduct
concerning environmental matters, permits, pollution, waste disposal, industrial
hygiene,  land use or the  protection  of human or  animal  health  or  welfare,
including,  without  limitation,  those  related to any  Release  or  threatened
Release of hazardous  materials and to the ownership,  transportation,  storage,
use or disposition of hazardous materials,  in any manner applicable to the Fuel
and other requirements of governmental  authorities  relating to the environment
or to any  hazardous  material  or  Fuel-Related  Activity  (including,  without
limitation,  the U. S. Comprehensive  Environmental  Response,  Compensation and
Liability Act, the U. S. Superfund Amendment and Reauthorization  Act, the U. S.
Toxic Substances Control Act, the U. S. Resources Conservation and Recovery Act,


                                      D-3




the U. S. Hazardous Material Transportation Act, the U. S. Clean Air Act, the U.
S. Water Pollution Control Act, the U. S. River and Harbors Act of 1899, the Oil
Pollution Act of 1990, the New York Environmental Conservation Law and all rules
arid regulations of the United States  Environmental  Protection Agency, the New
York  Department  of  Environmental   Conservation,   or  any  other  agency  or
governmental board or entity having jurisdiction over the Fuel or the ownership,
transportation,  storage,  use or disposition  thereof,  as any of the foregoing
have been or are hereafter amended).

     "Environmental  Loss"  means  a  Loss  suffered  or  incurred  by an  Owner
Indemnified  Party  arising out of or as a result of: (i) any  violation  of any
applicable  Fuel  Environmental  Law  relating to the Fuel or to the  ownership,
transportation,  storage,  use or disposition  thereof;  (ii) any investigation,
inquiry,  order,  hearing,   action,  or  other  proceeding  by  or  before  any
governmental   agency   addressing   the  violation  of  any   applicable   Fuel
Environmental Law in connection with any Fuel-Related Activity; (iii) any claim,
demand  or  cause  of  action,  or  any  action  or  other  proceeding,  whether
meritorious  or not,  brought or asserted  against any Owner  Indemnified  Party
which  directly or indirectly  relates to, arises from or is based on any of the
matters described in clauses (i) or (ii), or any allegation of any such matters;
or (iv) any cost of  reclamation  or  remediation  with respect to any property,
whether  then owned by such  Owner  Indemnified  Party or by another  person and
whether legally imposed under a Fuel Environmental Law or as a result of a Legal
Proceeding or necessary to restore an Owner Indemnified  Party's property to the
condition  it was in and/or the value it held prior to any damage  suffered as a
result of any Fuel-Related Activity.

     "Fuel Loss" means any actual loss or  deprivation  of Fuel to Owner so that
such Fuel is not  available  for its intended use under this  Agreement  through
either  a  loss,  damage,  theft,  seizure  or  destruction  of  such  Fuel or a
diminution  of the  value  of Fuel  through  the  attachment  of  liens or other
encumbrances  or claims to title for which Owner is not  responsible;  provided,
however,  that,  at the sole  option of Owner,  the  amount of any Fuel Loss for
purposes  of this  Appendix D may be  measured  by the  expense,  as  reasonably
determined by Owner,  of acquiring  power in  substitution  for that which would
have been  generated  with the Fuel to which such Fuel Loss  relates;  provided,
further that under no  circumstances  shall Operator be liable hereunder for any
amount in excess of the amount of the replacement value of the Fuel which is the
subject of the Fuel Loss at the time it is replaced.

     "Fuel-Related  Activity"  means any storage,  holding,  release,  emission,
discharge,   processing,    abatement,   removal,   disposition,   handling   or
transportation of Fuel.

     "General Claim" means a claim for damages; other than a claim brought under
a Fuel Environmental Law, asserted against an Owner Indemnified Party because of
Owner's  ownership  of the Fuel,  including  and  expressly  limited to, a claim
asserted by: (i) a party claiming bodily injury or property damage caused by the
Fuel or by the  transportation,  storage,  use or disposition  thereof;  (ii) an
employee or former  employee of Operator or KeySpan  Corporation  or its various
subsidiaries  seeking  worker's  compensation,  pension  or  other  benefits  of
employment or alleging  violations of the Occupational Safety and Health Act, or
other statutes or governmental  regulations  governing  safety in the workplace,
labor  relations or other  aspects of the  employer/employee  relationship  as a
result of a Fuel-Related  Activity.;  (iii) a government or agency or department
thereof  seeking the  assessment  of fines or penalties in  connection  with the
transportation of the Fuel or any other aspect of the ownership, storage, use or


                                      D-4




disposition  of the Fuel;  or (iv) any other  party  seeking  to hold such Owner
Indemnified  Party legally  responsible for damage caused by the Fuel or for the
acts or omissions of Operator or KeySpan Corporation or its various subsidiaries
managing the Fuel.

         "Legal Proceeding" means an action, suit, investigation, administrative
proceeding or formal proceeding of an adversarial nature before a court or other
governmental tribunal with jurisdiction over the parties and authority to assess
fines or penalties and/or to award damages or issue an order binding on a party
thereto.

     D5.3 Fuel Indemnification Procedure.

          (a) Losses Not Asserted or Incurred in a Legal  Proceeding.  If, other
     than in the course of a Legal Proceeding,  an Owner Indemnified Party shall
     incur a Loss or receive a demand or claim for payment by it which, if paid,
     would  constitute a Loss,  such Owner  Indemnified  Party shall  deliver to
     Operator  (in the case of any such  demand or claim,  promptly,  but in any
     case .within  twenty days after  receipt  thereof),  a written  request for
     indemnification  (a  "Request"),  setting  forth in  reasonable  detail the
     nature of such Loss, demand or claim, the amount thereof (or if the precise
     amount of such Loss, demand or claim is not yet known or determinable,  the
     estimated  amount or  magnitude  thereof or a statement  to the effect that
     such.  amount is not yet known or determinable) and the basis on which such
     Owner  Indemnified  Party  believes  that it is entitled to be  indemnified
     pursuant to this  Appendix D,  accompanied  by any  appropriate  supporting
     documentation. If

          (i)  the  amount  of the  Loss,  demand  or claim is set  forth in the
               Request,  the  Operator  shall pay the  requested  amount  within
               thirty (30)  Business  Days (as used in this Appendix D, the term
               "Business  Day" means any day on which  commercial  banks are not
               authorized or required to be closed in Nassau County,  New York);
               provided,   however,   that,   if  Operator   believes  that  the
               information   provided   in  such   Request  is   incomplete   or
               insufficient to support a claim for indemnification in the amount
               stated  or that the  Request  does not  state a valid  claim  for
               indemnification  pursuant to this Appendix D, it shall,  not more
               than ten (10) Business Days after receipt of the Request, deliver
               written  notice  to  such  Owner  Indemnified  Party  that it (i)
               requires  further  information in order to evaluate the claim for
               indemnification,  stating the nature of the required information,
               or  (ii)  acknowledges  that  such  Owner  Indemnified  Party  is
               entitled  to  indemnification   but  disagrees  with  the  amount
               requested, stating the basis for its disagreement and. the amount
               it believes to be appropriate, or (iii) disclaims liability under
               this  Appendix  D with  respect  to the  Loss,  demand  or  claim
               described  in the  Request,  stating  the basis for its denial of
               liability; or

          (ii) the precise amount of the Loss,  demand or claim is not set forth
               in the Request,  Operator  shall,  within ten (10) Business Days,
               deliver written notice to such Owner Indemnified Party either (a)
               acknowledging  the Loss as covered by this Appendix D, subject to
               the  ultimate  determination  of the  amount  thereof;  or (b) if
               Operator  believes that the information  provided in such Request
               is   incomplete   or   insufficient   to   support  a  claim  for
               indemnification  or that the Request does not state a valid claim
               for  indemnification  pursuant to this Appendix D, notifying such


                                      D-5



               Owner  Indemnified  Party  that  Operator  (x)  requires  further
               information  in order to evaluate the claim for  indemnification,
               stating the nature of the required information,  or (y) disclaims
               liability under this Appendix D with respect to the Loss,  demand
               or claim  described  in the  Request,  stating  the basis for its
               denial of liability.

If Operator has made a request for further  information,  such Owner Indemnified
Party  shall,  within ten (10)  Business  Days,  either  provide  the  requested
information  or notify  Operator in writing that it does not believe any further
information is necessary. If the Owner Indemnified Party fails to respond within
ten (10)  Business  Days or fails to  satisfy  Operator's  request  for  further
information,  Operator shall deliver  written  notice to such Owner  Indemnified
Party that it  disclaims  liability  under this  Appendix D with  respect to the
Loss, demand or claim described in the Request, stating the basis for its denial
of  liability.  If the Owner  Indemnified  Party  provides  further  information
satisfying  Operator's  request,  Operator shall, within ten (10) Business Days,
either  (a) if the  Request  stated  a  specific  amount  of the  Loss,  pay the
requested  amount;  (b) if the Request did not state a specific  amount of Loss,
deliver written notice to such Owner  Indemnified Party that it acknowledges the
Loss,  demand or claim as covered by this  Appendix D,  subject to the  ultimate
determination of the amount thereof; or (c) deliver written notice to such Owner
Indemnified Party that it disclaims liability under this Appendix D with respect
to the Loss, demand or claim described in the Request, stating the basis for its
denial of  liability.  If the Request  does not state a precise  amount of Loss,
demand or claim,  within five (5) Business  Days after it becomes aware of or is
able  to  determine  the  amount  of the  Loss,  demand  or  claim,  such  Owner
Indemnified  Party  shall  deliver  to  Operator,  a written  supplement  to the
Request,  setting forth in reasonable  detail the amount of such Loss, demand or
claim and the manner in which it was determined,  accompanied by any appropriate
supporting  documentation.  Operator  shall respond to any such  supplement to a
Request in the manner  contemplated by clause (i), above.  Any dispute as to the
amount or appropriateness of any  indemnification  requested  hereunder shall be
resolved in the manner provided in Article 6 of this Agreement.

     (b) Indemnification in Connection with Losses Incurred or Asserted in Legal
Proceedings.  Promptly after receipt by an Owner  Indemnified Party of notice of
the  commencement  of any Legal  Proceeding  which may  result in a Loss to such
Owner Indemnified  Party, but in any case within ten (10) Business Days thereof,
such Owner  Indemnified  Party will, if a claim in respect thereof is to be made
against  Operator  under this  Appendix  D,  notify  Operator  in writing of the
commencement  thereof.  In case any such  action is  brought  against  any Owner
Indemnified  Party,  and  it  notifies  Operator  of the  commencement  thereof,
Operator will be entitled to participate therein, and, to the extent that it may
wish to assume the defense thereof, with counsel reasonably satisfactory to such
Owner  Indemnified  Party, it may elect by written notice delivered to the Owner
Indemnified  Party promptly after receiving the aforesaid notice from such Owner
Indemnified  Party,  to assume the  defense  thereof,  with  counsel  reasonably
satisfactory.  to such Owner Indemnified Party;  provided,  however, that if the
defendants  (including  impleaded  parties) in any such action include both such
Owner Indemnified Party and Operator and such Owner Indemnified Party shall have
reasonably  concluded  that- there may be legal defenses  available to it and/or
other Owner Indemnified Parties which are different from or additional to' those
available to Operator, such Owner Indemnified Party or Owner Indemnified Parties
shall have the right to select  separate  counsel to assert such legal  defenses
and to  otherwise  participate  in the  defense of such action on behalf of such


                                      D-6



Owner  Indemnified Party or Owner  Indemnified  Parties.  Upon receipt of notice
from Operator to such Owner  Indemnified  Party of its election so to assume the
defense of such action and approval by the Owner  Indemnified  Party of counsel,
Operator will not be liable to such Owner  Indemnified Party under this Appendix
D  for  any  legal  or  other  expenses  subsequently  incurred  by  such  Owner
Indemnified  Party in connection  with the defense thereof unless (i) such Owner
Indemnified  Party shall have employed  separate  counsel in connection with the
assertion of legal defenses in accordance with the proviso to the next preceding
sentence (it being  understood,  however,  that Operator shall not be liable for
the  expenses  of  more  than  one  separate  counsel   representing  the  Owner
Indemnified  Parties who are parties to such action);  (ii)  Operator  shall not
have employed counsel  satisfactory to such Owner Indemnified Party to represent
such  Owner   Indemnified  Party  within  a  reasonable  time  after  notice  of
commencement  of the action;  or (iii) Operator has authorized the employment of
counsel for such Owner Indemnified Party at the expense of Operator;  and except
that if  clause  (i) or (iii) is  applicable,  such  liability  shall be only in
respect of the counsel referred to in such clause (i) or (iii).

     (c) Contribution.  In order to provide for just and equitable  contribution
in  connection  with any  Legal  Proceeding  under  circumstances  in which  the
indemnification  provided for in this Appendix D is due in  accordance  with the
terms  hereof  but is for any  reason  held by a court  to be  unavailable  from
Operator, on the grounds of policy or otherwise, Operator and the affected Owner
Indemnified  Parties shall  contribute to the aggregate  Losses  (including  any
legal and other expenses reasonably incurred in connection with investigating or
defending any portions of the complaint to which  Operator and one or more Owner
Indemnified  Parties may be subject)  in such  proportion  as the court or other
tribunal shall find  equitable in light of the relative fault or  responsibility
of Operator  and the Owner  Indemnified  Parties.  Any Owner  Indemnified  Party
entitled to contribution shall, promptly after receipt of notice of commencement
of a Legal Proceeding against such Owner Indemnified Party in respect of which a
claim for  contribution  may be made against  Operator under this paragraph (c),
but in any case within ten (10) Business Days thereof,  whether or not a request
for  indemnification  is to be made in respect of such Legal Proceeding,  notify
Operator in writing of the commencement  thereof. Each Owner Indemnified Party's
obligation to contribute pursuant to this paragraph (c) shall be several and not
joint.

     (d) Progress Payments.  Notwithstanding any other provision of this Section
D5.3,  if an Owner  Indemnified  Party has delivered a Request with respect to a
Loss,  claim or demand  pursuant  to  Section  D5.3(a)  hereof or a notice  with
respect to a Legal Proceeding pursuant to Section D5.3(b) hereof, Operator shall
pay promptly, but in any case within thirty (30) Business Days of the receipt of
a written request  therefor,  such amounts  disbursed by such Owner  Indemnified
Party in connection with such Loss,  claim or demand or such Legal Proceeding as
are set forth in such written request; provided,  however, that all amounts paid
by Operator  pursuant to this Section D5.3(d) shall be credited against the full
amount  of the  Loss  suffered  by  such  Owner  Indemnified  Party  as  finally
determined pursuant hereto; provided, further, that if the aggregate amount paid
to any Owner Indemnified Party pursuant to this Section D5.3(d) shall ultimately
be  determined  to have been paid in  respect  of a claim for which  such  Owner
Indemnified  Party was not legally  entitled to be indemnified  pursuant to this
Appendix D or in an amount which exceeded the full amount of the Loss ultimately
determined to be subject to this Appendix D, such Owner Indemnified Party shall,
promptly after receipt of a written request  therefor from Operator,  but in any
case within five (5) Business Days thereafter,  repay to Operator such aggregate
amount or the portion thereof which exceeded the amount of the Loss, as the case
may be.


                                      D-7




     (e) Effect of Insurance Coverage, Claims and Payments.  Notwithstanding any
other  provision of this Appendix D, no payment  required to be made to an Owner
Indemnified  Party in respect of a Loss  pursuant to this  Section D5.3 shall be
delayed,  reduced,  offset or  affected in any way by (i) the  existence  of any
insurance  policy or  policies  which may  cover or  result  in the  payment  of
insurance  proceeds  with  respect to such Loss;  (ii) the pendency of any claim
filed under any such insurance  policy or asserted against any third party which
may result in the payment of insurance  proceeds or other  amounts in respect of
such Loss; or (iii) any other possibility or potential for payment in respect of
such Loss by any person other than Operator;  provided, however; that (x) if any
amount is  received  by an Owner  Indemnified  Party in the form of payment of a
type  contemplated by clause (i), (ii) or (iii) of this Section D5.3(e) prior to
the time that  Operator is required to pay such amount  pursuant to this Section
D5.3,  the amount  required to be paid  pursuant to this  Section  D5.3 shall be
reduced to the extent of such amount theretofore actually received by such Owner
Indemnified  Party and (y) if any  amount is  received  by an Owner  Indemnified
Party in the form of  payment of -a type  contemplated  by clause  (i),  (ii) or
(iii) of this Section D5.3(e)  subsequent to the time that a portion or the full
amount of a Loss has been paid to such Owner  Indemnified Party by Operator with
the result that such Owner  Indemnified Party has actually received an aggregate
amount in excess of the full amount of such Loss, such Owner  Indemnified  Party
shall,  promptly after receipt of a written request therefor from Operator,  but
in any case within five (5) Business  Days  thereafter,  repay to Operator  such
amount or the portion  thereof which  resulted in such Owner  Indemnified  Party
receiving  an amount in excess of the full amount of such Loss,  as the case may
he.

     (f)   Failure   of  an  Owner   Indemnified   Party  to  Comply   with  the
Indemnification Procedures. Notwithstanding any other provision of this Appendix
D,  failure  of  an  Owner  Indemnified  Party  to  comply  with  the  foregoing
indemnification  procedures,  including  but not limited to the time periods set
forth for compliance  herein,  shall relieve Operator of its obligations to make
any payment until such failure to comply by an Owner  Indemnified Party has been
remedied to the reasonable satisfaction of Operator; provided, however, that the
failure by an Owner  Indemnified Party to take an action within a specified time
period shall only toll Operator's  obligation to make payments  hereunder during
such failure to comply and shall not prevent such Owner  Indemnified  Party from
perfecting a valid and enforceable claim to indemnification once such action has
been taken.

D6. Insurance in Respect of Fuel

     D6.1 Operator to Maintain Insurance Coverage.

     (a)  Operator  will,  for the  mutual  benefit  of  Operator  and the Owner
          Indemnified Parties, obtain and maintain during the entire Term:

          (i)  Policies of  insurance,  with  respect to the Fuel,  insuring the
               Fuel  against  loss or damage by fire,  lightning  and such other
               perils  as  are  included  in  a  standard   "all-risk"   policy,
               including,  without limitation,  flood and earth movement,  extra
               expense, riot and civil commotion, vandalism, malicious mischief,


                                      D-8



               burglary and theft. Such insurance shall be in an amount equal to
               the full  replacement  cost of the Fuel.  The  Owner  Indemnified
               Parties shall be included as additional insureds and shall, where
               applicable, be included as loss payees;

          (ii) Comprehensive   or  Commercial   General   Liability   insurance,
               including broad form property damage,  blanket contractual,  acts
               of  contractors/subcontractors,  sudden and accidental  pollution
               and personal injury  coverages and containing  minimum limits per
               occurrence of $100,000,000  and $200,000,000 in the aggregate for
               any policy year;

          (iii) Insurance covering the replacement cost of any Fuel which may be
               the  subject  of a Fuel Loss or the cost of  purchasing  power in
               substitution  for the  power  which  would  have  been  generated
               through the use of such Fuel, whichever is greater;

          (iv) Worker's compensation  insurance with respect to any employees of
               Operator,  as required  by any  governmental  authority  or legal
               requirement  and  employer's  liability  coverage  with limits of
               $100,000,000;

          (v)  To the extent  that such  coverage is not  otherwise  provided by
               insurance maintained by Operator,  during any period of repair or
               restoration  of the Plant or any other location at which the Fuel
               is regularly stored or used, builder's "all risk" insurance in an
               amount  equal to not less  than the full  insurable  value of the
               Fuel insuring against such risks (including,  without limitation,
               fire and extended  coverage)  as Owner may  request,  in form and
               substance acceptable to Owner, and, in addition,  provision shall
               be made by  Operator to require any  contractor  performing  such
               repair or restoration to maintain comparable coverage;

          (vi) If it is  determined  by an  environmental  state and/or  federal
               agency that a site must be cleaned up  Operator  and/or any Owner
               Indemnified  Party with an estimated  aggregate cost in excess of
               $10,000,000,   Clean-up   Cost  Cap  (CCC)   coverage   providing
               catastrophic  protection  for  cost  overruns  on  clean-up  cost
               estimates associated with any Fuel-Related Activity and resulting
               known  liabilities in any  determined  Area of Concern as well as
               new  found  conditions   within  the  Areas  of  Concern  with  a
               deductible not in excess of 10% of such cost estimates;

          (vii) Pollution  Legal  Liability  (PLL),  if available from companies
               with a claims  paying  ability  rating of "A" or better by Best's
               Rating  Guide,  covering  bodily  injury,   property  damage  and
               clean-up  costs arising from new  conditions  arising from future
               spills/releases from any Fuel-Related Activity; and

          (viii) Such  other  insurance  as may from time to time be  reasonably
               required by Owner in order to protect the  interests of the Owner
               Indemnified Parties.

     (b)  Self-Insurance,  Etc.  -Notwithstanding  the  requirements  of Section
          D6.1(a) hereof,  it is agreed that (i) Operator may self-insure any of
          the above coverages to the extent that it is doing so on the Effective
          Date or to such greater  extent as may be approved in writing by Owner
          and,  with such terms and in such amounts,  as a prudent  company with
          the same debt  rating  as  KeySpan  Corporation  would  maintain  with
          respect to similar  properties  and a similar  business,  and,  in any


                                      D-9



          event,  will  maintain  insurance  on all its  property of a character
          usually insured by a company engaged in the same or a similar business
          similarly  situated  against  loss or  damage  of the kinds and in the
          amounts  customarily  insured against by such companies,  and carry or
          cause to be carried,  with such  insurers in customary  amounts,  such
          other insurance,  including  public liability  insurance as is usually
          carried  by  companies  engaged  in the  same  or a  similar  business
          similarly  situated;  provided,  however,  that if at any time KeySpan
          Corporation's  debt ratings  fall below  minimum  investment  grade as
          rated by both Standard and Poors and by Moody's, Operator shall not be
          permitted to  self-insure  pursuant to this Section  D6.1(b) and shall
          fully comply with the  requirements  of Section  D6.1(a) hereof within
          ninety (90) days, except to the extent that Owner has otherwise agreed
          in writing.

     D6.2  Requirements  for  All  Policies.  All  policies  of  insurance  (the
"Policies")  required  pursuant to this  Section D6: (i) if they cover  property
damage to any Fuel,  shall contain a "Replacement  Cost  Endorsement"  and shall
have a deductible  no greater than  $3,000,000  or twenty  percent (20%) of such
replacement cost, whichever is less unless otherwise agreed by Owner; (ii) shall
be issued by companies  with a claims paying  ability rating of "A" or better by
Best's Rating  Guide;  (iii) to the extent that it covers loss of, or damage to,
Fuel,  shall name Owner,  as its  interest  may  appear,  as a loss payee or the
equivalent,  naming Owner as the person to which (or at the  direction of which)
all payments made by such insurance  company shall be paid; (iv) shall contain a
waiver of  subrogation  against Owner;  (vi) shall be maintained  throughout the
Term without  additional  cost to Owner;  (vii) shall contain such provisions as
Owner  deems  reasonably  necessary  to  protect  the  interests  of  the  Owner
Indemnified Parties, including, without limitation,  endorsements providing that
neither  Operator,  any Owner  Indemnified  Party nor any other party shall be a
co-insurer  under said Policies,  and that the Owner  Indemnified  Parties shall
receive at least  thirty  (30) days prior  written  notice of any  modification,
reduction or cancellation;  and (viii) shall he reasonably  satisfactory in form
and substance to Owner and shall be approved by Owner as to, amounts, form, risk
coverage, deductibles, loss payees and insureds.

     D6.3 Payment of Insurance  Premiums.  To the extent that  Operator does not
self-insure pursuant to Section D6.1(b) hereof,  Operator shall pay the premiums
for such Policies (the "Insurance  Premiums") as the same become due and payable
and shall furnish to Owner  evidence of the renewal of each of the Policies with
receipts  for the payment of the  Insurance  Premiums or other  evidence of such
payment  reasonably  satisfactory  to Owner.  If Operator  does not furnish such
evidence and receipts at least thirty (30) days  subsequent to the expiration of
any  expiring  Policy,  then Owner may  procure,  but shall not be  obligated to
procure,  such insurance and pay the Insurance Premiums  therefor,  and Operator
agrees to reimburse  Owner for the cost of such Insurance  Premiums  promptly on
demand.  Within thirty (30) days after request by Owner,  Operator  shall obtain
such  increases  in  the  amounts  of  coverage  required  hereunder  as  may be
reasonably requested by Owner, taking into consideration changes in the value of
money over time,  changes in  liability  laws,  changes in prudent  customs  and
practices.  The  payment by  Operator  of  Insurance  Premiums  pursuant to this
Section  D6.3 shall not in any way  reduce or offset  the amount of any  payment
which Operator is required to make in respect of any Loss pursuant to Section D5
hereof.


                                      D-10





                                  APPENDIX "E"
                                  ------------

                        PROVISIONS REQUIRED BY STATE LAW
                        --------------------------------


NON-ASSIGNMENT  CLAUSE. In accordance with Section 138 of the State Finance Law,
this  Agreement  may not be  assigned  by the  Operator  or its right,  title or
interest therein assigned,  transferred,  conveyed, sublet or otherwise disposed
of without the previous consent, in writing, of Owner and any attempts to assign
this  Agreement  without the  Owner's  written  consent  are null and void.  The
Operator may, however, assign its right to receive payment without Owner's prior
written consent unless this Agreement  concerns  Certificates  of  Participation
pursuant to Article 5-A of the State Finance Law.

COMPTROLLER'S  APPROVAL.  In  accordance  with Section 112 of the New York State
Finance  Law (the  "State  Finance  Law"),  this  Agreement  shall not be valid,
effective  or  binding  upon  Owner  until it has  been  approved  by the  State
Comptroller and filed in his office.

WORKER'S  COMPENSATION  BENEFITS.  In  accordance  with Section 142 of the State
Finance Law, this Agreement  shall be void and of no force and effect unless the
Operator  provides and maintains  coverage during the life of this Agreement for
the benefit of such employees as are required to be covered by the provisions of
the Workers' Compensation Law.

NON-DISCRIMINATION  REQUIREMENTS. In accordance with Article 15 of the Executive
Law (also  known as the  Human  Rights  Law) and all  other  New York  State and
Federal statutory and constitutional non-discrimination provisions, the Operator
shall not discriminate  against any employee or applicant for employment because
of race, creed,  color, sex, national origin, age,  disability,  marital status,
sexual orientation,  genetic predisposition or carrier status.  Furthermore,  in
accordance  with Article 220-e of the New York Labor Law, and to the extent that
this  Agreement  shall be performed  within the State of New York,  the Operator
agrees that neither it nor its  subcontractors  shall, by reason of race, creed,
color,   disability,   sex,  national  origin,   sexual   orientation,   genetic
predisposition  or carrier  status;  (a)  discriminate in hiring against any New
York State  citizen who is qualified  and  available to perform the work; or (b)
discriminate  against or  intimidate  any employee for the  performance  of work
under this Agreement.

WAGE AND HOURS  PROVISIONS.  If this Agreement is a public work contract covered
by Article 8 of the Labor Law or a building  service contract covered by Article
9  thereof,   neither  the  Operator's   employees  nor  the  employees  of  its
subcontractors  may be  required  or  permitted  to work more than the number of
hours or days stated in said statutes, except as otherwise provided in the Labor
Law and as set forth in prevailing wage and supplement  schedules  issued by the
State Labor Department.  Furthermore,  the Operator and its subcontractors  must
pay at  least  the  prevailing  wage  rate  and pay or  provide  the  prevailing
supplements,  including the premium rates for overtime pay, as determined by the
State Labor Department in accordance with the Labor Law.


                                      E-1




NON-COLLUSIVE  BIDDING  CERTIFICATION.  In  accordance  with Section 2878 of the
Public  Authorities Law, if this Agreement was awarded based upon the submission
of bids,  the  Operator  warrants,  under  penalty of perjury,  that its bid was
arrived at independently and without collusion aimed at restricting competition.
The Operator further warrants that, at the time the Operator  submitted its bid,
an  authorized  and  responsible  person  executed and  delivered to the Owner a
non-collusive bidding certification on the the Manager's behalf.

INTERNATIONAL BOYCOTT PROHIBITION. In accordance with Section 220-f of the Labor
Law and  Section  139-h of the State  Finance  Law,  if this  Agreement  exceeds
$5,000,  the Operator agrees,  as a material  condition of this Agreement,  that
neither the Operator nor any  substantially  owned or affiliated  person,  firm,
partnership  or  corporation  has  participated,  is  participating,   or  shall
participate  in an  international  boycott in  violation  of the federal  Export
Administration  Act of 1979 (50 USC app.  Sections 2401 et seq.) or  regulations
thereunder.  If the Manager, or any of the aforesaid  affiliates of the Manager,
is convicted or is otherwise  found to have  violated  said laws or  regulations
upon the final  determination  of the United States  Commerce  Department or any
other  appropriate  agency of the United States  subsequent to this  Agreement's
execution,  such contract,  amendment or modification  thereto shall be rendered
forfeit and void. The Operator shall so notify the State Comptroller within five
(5) business days of such  conviction,  determination  or  disposition of appeal
(2NYCRR 105.4).

SET-OFF RIGHTS.  Owner shall have all of its common law, equitable and statutory
rights of set-off.  These rights shall  include,  but not be limited to, Owner's
option to withhold  for the  purposes of set-off any moneys due to the  Operator
under this  Agreement  up to any  amounts  due and owing to Owner with regard to
this Agreement, any other contract with Owner, including any contract for a term
commencing  prior to the term of this Agreement,  plus any amounts due and owing
to Owner for any other reason including,  without limitation, tax delinquencies,
fee delinquencies or monetary penalties  relative thereto.  Owner shall exercise
its set-off rights in accordance with normal State practices including, in cases
of set-off  pursuant to an audit,  the  finalization of such audit by Owner, its
representatives, or the State Comptroller.

RECORDS.  The Operator shall establish and maintain complete and accurate books,
records,   documents,   accounts  and  other  evidence  directly   pertinent  to
performance under this Agreement (hereinafter, collectively, "the Records"). The
Records  must be kept for the  balance of the  calendar  year in which they were
made and for six (6) additional years  thereafter.  The State  Comptroller,  the
Attorney  General  and any other  person  or entity  authorized  to  conduct  an
examination, as well as the agency or agencies involved in this Agreement, shall
have  access to the Records  during  normal  business  hours at an office of the
Operator  within the State of New York or, if no such office is available,  at a
mutually agreeable and reasonable venue within the State, for the term specified
above for the purposes of  inspection,  auditing  and copying.  Owner shall take
reasonable steps to protect from public  disclosure any of the Records which are
exempt  from  disclosure  under  Section  87 of the  Public  Officers  Law  (the
"Statute")  provided  that:  (i) the Operator  shall timely  inform the Owner in
writing, that said records should not be disclosed;  and (ii) said records shall
be  sufficiently  identified;  and (iii)  designation  of said records as exempt
under the Statute is reasonable.  Nothing contained herein shall diminish, or in
any way  adversely  affect,  the State's  right to  discovery  in any pending or
future litigation.


                                      E-2




EQUAL EMPLOYMENT FOR MINORITIES AND WOMEN. In accordance with Section 312 of the
New  York  Executive  Law:  (i) the  Operator  shall  not  discriminate  against
employees or applicants for employment because of race, creed,  color,  national
origin,  sex, age,  disability,  marital  status,  sexual  orientation,  genetic
predisposition  or  carrier  status and shall  undertake  or  continue  existing
programs of  affirmative  action to ensure that minority group members and women
are afforded equal employment opportunities without discrimination ("affirmative
action"  shall  mean  recruitment,   employment,   job  assignment,   promotion,
upgradings, demotion, transfer, layoff, or termination and rates of pay or other
forms of  compensation);  (ii) at the request of the Owner,  the Operator  shall
request each employment  agency,  labor union, or authorized  representative  of
workers  with  which  it has a  collective  bargaining  or  other  agreement  or
understanding, to furnish a written statement that such employment agency, labor
union or  representative  will not  discriminate  on the  basis of race,  creed,
color,   national  origin,  sex,  age,   disability,   marital  status,   sexual
orientation,  genetic  predisposition  or carrier  status and that such union or
representative  will  affirmatively  cooperate  in  the  implementation  of  the
Manager's  obligations  herein;  and  (iii) the  Operator  shall  state,  in all
solicitations or advertisements for employees,  that, in the performance of this
Agreement,   all  qualified   applicants  will  be  afforded  equal   employment
opportunities  without  discrimination  because of race, creed, color,  national
origin,  sex, age,  disability,  marital  status,  sexual  orientation,  genetic
predisposition  or carrier status.  The Operator shall include the provisions of
(i),  (ii) and (iii)  above,  in every  subcontract  over  twenty-five  thousand
dollars  ($25,000.00)  for  the  construction,  demolition,  replacement,  major
repair, renovation, planning or design of real property and improvements thereon
(the "Work") except where the Work is for the beneficial use of the Manager.

CONFLICTING  TERMS.  In the  event  of a  conflict  between  the  terms  of this
Agreement (including any and all attachments thereto and amendments thereof) and
the terms of this Appendix E, the terms of this Appendix E shall control.

GOVERNING LAW. This Agreement  shall be governed by the laws of the State of New
York except where the Federal supremacy clause requires otherwise.

LATE PAYMENT.  Timeliness of payment and any interest to be paid to the Operator
for late payment shall be governed by Section 2880 of the Public Authorities Law
and the guidelines adopted by Owner thereto.

PROHIBITION  ON PURCHASE OF  TROPICAL  HARDWOODS.  The  Operator  certifies  and
warrants that all wood products to be used under this contract  award will be in
accordance with, but not limited to, the  specifications and provisions of State
Finance Law ss.165 (Use of Tropical  Hardwoods) which prohibits purchase and use
of  tropical  hardwoods,  unless  specifically  exempted,  by the  State  or any
governmental  agency or political  subdivision  or public  benefit  corporation.
Qualification for an exemption under this law will be the  responsibility of the
Operator to establish to meet with the approval of the State.

In  addition,  when any portion of this  Agreement  involving  the use of woods,
whether supply or  installation,  is to be performed by any  subcontractor,  the
Operator  will  indicate  and certify in the  submitted  bid  proposal  that the
subcontractor  has been informed and is in compliance  with  specifications  and
provisions  regarding  use of tropical  hardwoods  as  detailed in ss.165  State
Finance Law.  Any such use must meet with the approval of the State;  otherwise,
the bid may not be considered responsive. Under bidder certifications,  proof of
qualification  for exemption will be the  responsibility of the Operator to meet
with the approval of the State.


                                      E-3




MACBRIDE  FAIR  EMPLOYMENT  PRINCIPLES.  In  accordance  with the MacBride  Fair
Employment  Principles  (Chapter 807 of the New York Laws of 1992), the Operator
hereby  stipulates  that the Operator  either (i) has no business  operations in
Northern  Ireland,  or (ii) shall take lawful steps in good faith to conduct any
business  operations in Northern  Ireland in  accordance  with the MacBride Fair
Employment  Principles  (as  described  in  Article  165 of,  the New York State
Finance Law), and shall permit  independent  monitoring of compliance  with such
principles.

OMNIBUS  PROCUREMENT ACT OF 1992. It is the policy of New York State to maximize
opportunities  for the  participation  of New York State  business  enterprises,
including   minority   and   women-owned   business   enterprises   as  bidders,
subcontractors  and suppliers on its procurement  contracts.  Information on the
availability of New York State subcontractors and suppliers is available from:

                  NYS Department of Economic Development
                  Division for Small Business
                  One Commerce Plaza
                  Albany, New York 12245.

          A directory of certified minority and women-owned business enterprises
     is available from:

                  NYS Department of Economic Development
                  Minority and Women's Business Development Division
                  One Commerce Plaza
                  Albany, New York 12245

The Omnibus Procurement Act of 1992 requires that by signing this Agreement, the
Operator certifies that:

     (a) The Operator has made commercially  reasonable efforts to encourage the
participation   of  New  York  State  Business   Enterprises  as  suppliers  and
subcontractors,   including   certified   minority  and   woman-owned   business
enterprises,  on this  project,  and has  retained  the  documentation  of these
efforts to be provided upon request to the State;

     (b) The Operator has complied  with the Federal  Equal  Opportunity  Act of
1972 (P.L. 92-261), as amended; and

     (c) The Operator agrees to make commercially  reasonable efforts to provide
notification  to New York State  residents of employment  opportunities  on this
Project through listing any such positions with the Job Service  Division of the
New York State  Department  of Labor,  or providing  such  notification  in such
manner  as is  consistent  with  existing  collective  bargaining  contracts  or
agreements.  The Operator  agrees to document  these efforts and to provide said
documentation to the State upon request.


E-4




     (d) The  Operator  acknowledges  that the State  may seek to obtain  offset
credits  from  foreign  countries  as a result of this  Agreement  and agrees to
cooperate with the State in these efforts.

RECIPROCITY  AND SANCTIONS  PROVISIONS.  The Operator is hereby notified that if
its  principal  place of business is located in a state that  penalizes New York
State vendors, and if the goods or services it offers are substantially produced
or performed outside New York State, the Omnibus Procurement Act 1994 amendments
(Chapter 684, Laws of 1994) require that the Operator be denied  contracts which
it would otherwise obtain.

PURCHASES OF APPAREL.  In  accordance  with State  Finance Law 162 (4-a),  Owner
shall not  purchase  any apparel  from any  contractor  unable or  unwilling  to
certify  that:  (i)  such  apparel  was  manufactured  in  compliance  with  all
applicable labor and occupational  safety laws,  including,  but not limited to,
child labor laws,  wage and hours laws and workplace  safety laws,  and (ii) the
Operator will supply,  prior to or on the Contract Date, the names and addresses
of each  subcontractor and a list of all manufacturing  plants to be utilized by
the Manager.

CERTIFICATION  OF COMPLIANCE  WITH EXECUTIVE  ORDER 127. The Operator  certifies
that all  information  provided to Owner with respect to Executive  Order Number
127 is complete, true, and accurate.

     OPTIONAL  TERMINATION  BY  THE  AUTHORITY.  Owner  reserves  the  right  to
terminate this Agreement in the event it is found that the  certification  filed
by the Operator in accordance  with New York State  Executive  Order Number 127,
signed  by  Governor  Pataki  on June  16,  2003,  was  intentionally  false  or
intentionally incomplete.  Upon such finding, Owner may exercise its termination
right by providing  written  notification to the Operator in accordance with the
written notification terms of this Agreement.

     CONTINGENT  FEES.  The Operator  hereby  certifies  and agrees that (a) the
Operator  has not  employed  or  retained  and will not  employ  or  retain  any
individual  or entity  for the  purpose  of  soliciting  or  securing  any Owner
contract or any amendment or modification  thereto  pursuant to any agreement or
understanding for receipt of any form of compensation  which in whole or in part
is contingent or dependent  upon the award of any such contract or any amendment
or  modification  thereto;  and (b) the  Operator  will  not  seek or be paid an
additional  fee  that is  contingent  or  dependent  upon  the  completion  of a
transaction by Owner.


                                      E-5





      Annex E to First Amendment to Option and Purchase and Sale Agreement

                                                                    FINAL COPY











                                    [SECOND]

                                    AMENDMENT

                             Dated as of [_________]

                                       to



                             POWER SUPPLY AGREEMENT

                                     between

                          LONG ISLAND LIGHTING COMPANY

                                       and

                             KEYSPAN GENERATION LLC

                                   Dated as of

                                  June 26, 1997







     This  AMENDMENT  (the   "Amendment")   is  made  and  entered  into  as  of
[___________],  by and between LONG ISLAND  LIGHTING  COMPANY  d/b/a LIPA, a New
York  corporation  ("LIPA"),  and  KEYSPAN  GENERATION  LLC, a New York  limited
liability company ("GENCO"),  to the Power Supply Agreement, by and between LIPA
and GENCO,  dated as of June 26, 1997 (as  amended,  supplemented  or  otherwise
modified from time to time, the "PSA").

                                    RECITALS

     WHEREAS,  LIPA and GENCO are  parties  to an Option and  Purchase  and Sale
Agreement,  dated as of  January 1, 2006,  as  amended by a First  Amendment  to
Option and Purchase and Sale Agreement,  dated as of March 22, 2007 (the "Option
Agreement"),  pursuant to which LIPA was  granted an option to purchase  the Far
Rockaway  generating  facility  and certain  related  assets (the "Far  Rockaway
Plant") and/or the E.F. Barrett  generating  facility and certain related assets
(the  "E.F.  Barrett  Plant")  or the E.F.  Barrett  Plant and the E.F.  Barrett
internal  combustion  units 1-8 and 9-12 (the "ICUs") and certain related assets
on the terms and subject to the conditions set forth therein;

     WHEREAS,  LIPA exercised its option under the Option  Agreement to purchase
[the Far Rockaway Plant,  the E.F. Barrett Plant and the ICUs] [the Far Rockaway
Plant and the E.F.  Barrett  Plant] [the E.F.  Barrett  Plant and the ICUs] [the
E.F. Barrett Plant] [the Far Rockaway Plant]; and

     WHEREAS,  as a condition to the purchase of the Purchased  Assets under the
Option Agreement,  LIPA and GENCO are entering into this Amendment to the PSA to
reflect the purchase of the Purchased Assets.

     NOW, THEREFORE,  in consideration of the foregoing and the mutual covenants
and  agreements   hereinafter   set  forth  and  for  other  good  and  valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows:

                                    ARTICLE 1

                                   DEFINITIONS

     Section 1.1. Definitions.  All capitalized terms used in this Amendment and
not otherwise defined shall have the meanings assigned to them in the PSA.

                                    ARTICLE 2

                                AMENDMENTS TO PSA

     Section 2.1.  Amendment to Article 1 of the PSA. (a) Article 1.1 of the PSA
is hereby amended by inserting the following new  definitions in the appropriate
alphabetical order:

     "E.F. Barrett Plant" means the 350 MW E.F. Barrett generating station, Unit
     Nos. 1 and 2 (but  excluding  the ICUs),  as more  fully  described  in the
     Option Agreement.


                                       1




     "Far Rockaway Plant" means the 100 MW Far Rockaway  generating  station, as
     more fully described in the Option Agreement.


     "ICUs" means the E.F. Barrett internal combustion units 1-8 and 9-12.

     "LIPA Generating  Facilities" means the electric generating  facilities and
     appurtenant  facilities  purchased  by LIPA  from  GENCO,  which  as of the
     effective date of the [Second]  Amendment [is/are] [the E.F. Barrett Plant]
     [,] [the Far  Rockaway  Plant] [,] [the ICUs] [,] [the  Shoreham  Plant] [,
     and] [the Wading River Plant].

     "Option Agreement" means the Option and Purchase and Sale Agreement,  dated
     as of January 1, 2006, between LIPA and GENCO, as amended,  supplemented or
     otherwise modified from time to time.

     "[Second]  Amendment"  means  this  Amendment  to  the  PSA,  dated  as  of
     [________].

     "Step-Up  Percentage" means the step-up in the tax basis of each Generating
     Facility's tax basis  expressed as a percentage of the total step-up in the
     tax bases of  Generating  Facilities  that were recorded as a result of the
     sale of the Genco  assets  to  KeySpan.  For the E.F.  Barrett  Plant,  the
     percentage  shall be 10.87%,  for the Far Rockaway  Plant,  the  percentage
     shall be 4.05% and for the ICUs the percentage shall be 2.43%.

     (b) The definitions of "Generating  Facilities"  and  "Generating  Facility
Sites" in Article 1 of the PSA are hereby  amended by deleting such  definitions
in their entirety and inserting in lieu thereof the following new definitions:

     "Generating  Facilities" means the electric generating  facilities owned by
     GENCO as of March 19, 1997 (but excluding the LIPA Generating  Facilities),
     including, but not limited to: (a) all systems,  structures,  equipment and
     appurtenances  associated  with each  Generating  Facility's  operation and
     forming a part thereof; (b) permanent  administrative  offices and building
     structures housing  Generating  Facility  equipment,  and site improvements
     such as roads,  drainage,  fencing  and  landscaping;  and (c)  structures,
     pipelines  and  equipment  for (i) the  delivery  of  Fuel,  and  (ii)  the
     transport of water,  waste water and other waste disposal,  and (iii) other
     materials,  supplies and commodities  required for the Services.  A list of
     GENCO's generating units is contained in Appendix C.

     "Generating  Facility  Sites"  means  each  parcel of land upon  which each
     existing  Generating  Facility is situated,  as well as the land contiguous
     thereto,  owned by  Genco as of March  19,  1997  (but  excluding  the LIPA
     Generating Facilities).


                                       2




     Section 2.2. Amendment to Section 2.6 of the PSA. Section 2.6 of the PSA is
hereby amended by deleting the first sentence  thereof and  substituting in lieu
thereof the following:

     "GENCO will use  reasonable  efforts,  in accordance  with Prudent  Utility
     Practice to maintain a DMNC level for the Generating Facilities of [3973 MW
     minus the following  amounts for each  generating  facility which is a LIPA
     Generating  Facility  as of  the  Closing  Date  specified  in  the  Option
     Agreement:  Far Rockaway  Plant--110 MW; E.F. Barrett Plant--386 MW; ICUs--
     281 MW; Shoreham Plant--67 MW; and Wading River Plant--242 MW].

     Section  2.3  Amendment  to  Section  3.1.1 of the PSA.  Unless  previously
amended to reflect a transfer of Generating Facilities to LIPA, Section 3.1.1 of
the PSA is hereby amended as follows:

     (a)  by  deleting  the second  sentence  thereof and  substituting  in lieu
          thereof the following:

          "This  analysis  would  evaluate  all  available   resource   options,
          including the LIPA Generating Facilities,  to meet the electric energy
          requirements of LIPA's Electricity Customers."


     (b)  by  deleting  the fourth  sentence  thereof and  substituting  in lieu
          thereof the following:

          "The IERP  analysis is  intended  to be  performed  to  determine  the
          optimum  mix  of  the  LIPA  Generating  Facilities,   the  Generating
          Facilities,  and  purchased  power from other  sources in an effort to
          provide the least cost mix of electricity  resources  including demand
          side management (DSM) options for LIPA's  Electricity  Customers while
          observing established reliability criteria."

     Section  2.4.  Amendment  to Section  9.1.1 of the PSA.  Unless  previously
amended to reflect a transfer of Generating Facilities to LIPA, Section 9.1.1 of
the PSA is hereby  amended  by adding  the  following  new  sentence  at the end
thereof.  If such  sentence  has  previously  been added to the PSA, it shall be
amended to read as follows:


          "In addition to the foregoing,  on or before [_________],  GENCO shall
          prepare and submit to LIPA for review and approval a revised Five Year
          Budget Plan, which shall contain fixed and variable costs developed by
          GENCO in  calendar  year  2008 to  account  for the fact that the LIPA
          Generating Facilities are no longer Generating Facilities."

     Section  2.5.  Amendment  to Section  9.1.2 of the PSA.  Unless  previously
amended to reflect a transfer of Generating Facilities to LIPA, Section 9.1.2 of
the PSA is hereby  amended by adding the following new sentence  after the first
sentence  thereof.  If such  sentence has  previously  been added to the PSA, it
shall be amended to read as follows:


                                       3




          "On or before  [________________],  GENCO shall  prepare and submit to
          LIPA a revised  rolling Five Year Capital  Improvement  Budget showing
          incremental  capital  expenditures and associated rate adjustments for
          the Generating Facilities excluding the LIPA Generating Facilities for
          LIPA's review and approval."

     Section 2.6. Amendment to Section 9.2 of the PSA. Unless previously amended
to reflect a transfer of Generating  Facilities to LIPA,  Section 9.2 of the PSA
is hereby  amended by adding the following  new sentence at the end thereof.  If
such sentence has previously  been added to the PSA, it shall be amended to read
as follows:

          "The parties shall establish mutually agreed upon timelines  following
          LIPA's  receipt of the revised  rolling Five Year Capital  Improvement
          Budget  for review  and  revision  of the  revised  Five Year  Capital
          Improvement Budget pursuant to the procedures set forth above."

     Section 2.7.  Amendment to Article 11.1 of the PSA. Section 11.1 of the PSA
is hereby  amended by deleting the LIPA  Generating  Facilities  and  associated
capacity  values from the Capacity  Ramp Down schedule and by amending the first
sentence of the second paragraph thereof to read as follows:

          "The Ramp Down will be an aggregate  potential  reduction amount of no
          greater  than 1500 MW, less the amount of  generating  capacity in the
          LIPA Generating Facilities."

     Section 2.8. Amendment to Appendix A of the PSA.

          (a) Unless  previously  amended to  reflect a transfer  of  Generating
     Facilities  to LIPA,  Appendix A to the PSA is hereby  amended by inserting
     the following new paragraph (H) in Section I thereof.

          "Notwithstanding  the foregoing  Section I, on and after the effective
          date of the [Second] Amendment, the Capacity Charge for the Generating
          Facilities  (excluding  the  LIPA  Generating   Facilities)  shall  be
          determined by removing the costs being recovered  through the Capacity
          Charge  in  effect  for that  Contract  Year  for the LIPA  Generating
          Facilities.  The costs to be removed will include the:  return on rate
          base  calculated at the rate of 7.17% for each of the LIPA  Generating
          Facilities  individually  less its share of the $7.120 million revenue
          credit;  depreciation charges;  property taxes specifically identified
          as attributable to the appropriate LIPA Generating  Facilities;  state
          and  federal  income  taxes  (including  the  effect  of the  costs of
          removal);  and  an  allocable  share  of  operations  and  maintenance
          expenses (net of contractual synergy savings).  The allocable share of
          operations and maintenance  expenses to be attributable to each of the
          LIPA Generating  Facility shall be determined by multiplying the Total
          Fixed O&M Cost  Component by the total number of full time  equivalent
          employees  dedicated to the LIPA  Generating  Facility  divided by the
          total number of full time equivalent  employees working at each of the
          GENCO Generating  Facilities  covered under the PSA ("Allocated  Fixed
          O&M Cost").  The Total Fixed O&M Cost Component shall be determined by


                                       4



          subtracting from the sum of the Capacity Charge and the $7.120 million
          revenue   credit,   the   following   components:    property   taxes,
          depreciation,  return on rate base,  state and  federal  income  taxes
          (including  the effects of cost of removal),  common  assets  recovery
          charge and the amortization of security costs.

          The  share  of the  revenue  credit  assignable  to each  of the  LIPA
          Generating  Facilities  shall  be  determined  by  multiplying  $7.120
          million by the amount of the  Step-Up  Percentage  for the  Generating
          Facility."

          (b) Unless  previously  amended to  reflect a transfer  of  Generating
     Facilities  to LIPA,  Appendix A to the PSA is hereby  amended by inserting
     the following new paragraph in Section III(B)  thereof  relating to the Tax
     True-Up. If such sentence has previously been added to the PSA, it shall be
     amended to read as follows:

          "Notwithstanding the foregoing, on and after the effective date of the
          [Second] Amendment, the base amount of property taxes shall be revised
          by removing the base amount of property  taxes  attributed to the LIPA
          Generating  Facilities that is included in the base amount of property
          taxes at the time of Closing (as defined in the Option Agreement)."

          (c) Unless  previously  amended to  reflect a transfer  of  Generating
     Facilities  to LIPA,  Appendix A to the PSA is hereby  amended by inserting
     the following new paragraph in Section III(C) thereof relating to the Plant
     Additions True up. If such sentence has  previously  been added to the PSA,
     it shall be amended to read as follows:

          "(4) On and after the effective  date of the [Second]  Amendment,  the
          Budgeted Incremental Depreciation Expense and the Budgeted Incremental
          Net  Utility   Plant  shall  be  revised  by  removing   the  Budgeted
          Incremental  Depreciation Expense and Budgeted Incremental Net Utility
          Plant attributed to the LIPA Generating Facilities."

          (d) Unless  previously  amended to  reflect a transfer  of  Generating
     Facilities  to LIPA,  Appendix A to the PSA is hereby  amended by  deleting
     Section IV thereof relating to Reopeners.

          (e)  Section  V  of  Appendix  A to  the  PSA  is  hereby  amended  by
     restatement  of (i) the amount of the  Incremental  Synergy  Savings as set
     forth in Section V.J.; (ii) the base year labor costs (production) and base
     year  benefit  costs  (production)  as set  forth in the Labor  Cost  Index
     Adjustment  (Production) and Benefit Cost Index Adjustment  (Production) as
     set forth in Section  V.K.,  and (iii) base year labor costs  (support) and
     base year  benefit  costs  (support)  as set forth in the Labor  Cost Index
     Adjustment (Support) and Benefit Cost Index Adjustment (Support) in Section
     V.L., to reflect removal of the LIPA Generating Facilities.


                                       5




     Section 2.9.  Amendment to Appendix B of the PSA.  Appendix B of the PSA is
hereby  amended  by  deleting  each of the LIPA  Generating  Facilities  and the
amounts associated with each of the LIPA Generating Facilities from the Tables.

     Section 2.10.  Amendment to Appendix C of the PSA. Appendix C of the PSA is
hereby amended by deleting the LIPA Generating  Facilities and their  associated
name plate ratings from the list of Generating Units.

     Section 2.11.  Amendment to Appendix E of the PSA. Appendix E of the PSA is
hereby amended by deleting the LIPA Generating Facilities from the tables.

     Section 2.12.  Amendment to Appendix F of the PSA. Schedule F to the PSA is
hereby amended by inserting the following new paragraph (V) as follows:

          "Upon the  effective  date of the  [Second]  Amendment,  the  original
          targets for (i) the DMNC Incentive/Disincentive; (ii) the Availability
          Incentive/Disincentive;  and (iii) the Heat Rate  Incentive,  shall be
          adjusted to reflect the targets  for Genco  Generating  Facilities  as
          shown in the graph below.  The incentive  maximums shall be reduced by
          __%." [insert: 2.77% if only Far Rockaway Plant is purchased; 9.72% if
          only E.F.  Barrett  Plant is  purchased;  12.48% if only Far  Rockaway
          Plant  and E.F.  Barrett  Plant  are  purchased;  16.79%  if only E.F.
          Barrett and the ICUs are purchased;  19.55% if the Far Rockaway Plant,
          the E.F. Barrett Plant and the ICUs are purchased]



   ---------------------- ------------------ ------------------ ------------------- ------------------ ---------------------------
                          [If only Far       [If only E.F.      [If only Far        [If only E.F.      [If Far Rockaway Plant,
                          Rockaway Plant     Barrett Plant      Rockaway Plant      Barrett Plant      E.F. Barrett Plant and
                          is purchased]      is  purchased]     and E.F. Barrett    and the ICUs are   the ICUs are purchased]
                                                                Plant are           purchased]
                                                                purchased]
   ---------------------- ------------------ ------------------ ------------------- ------------------ ---------------------------
                                                                                       
   Availability           94.2%              94.0%              94.0%               94.1%              94.2%
   ---------------------- ------------------ ------------------ ------------------- ------------------ ---------------------------
   DMNC                   3863 MW            3587 MW            3477 MW             3306 MW            3196 MW
   ---------------------- ------------------ ------------------ ------------------- ------------------ ---------------------------
   Heat Rate              MMBTU =            MMBTU =            MMBTU =             MMBTU =            MMBTU =
                          10.6676*           10.6992*           10.6332*            10.6992*           10.6332* MWhN
                          MWhN +             MWhN +             MWhN +              MWhN +             + 166,014
                          181,492            151,140            166,014             151,140
   ---------------------- ------------------ ------------------ ------------------- ------------------ ---------------------------



                                       6



                                    ARTICLE 3

                                  MISCELLANEOUS

     Section  3.1.  Effective  Date.  This  Amendment  shall be  effective  upon
satisfaction  of each of the following  conditions (the date upon which all such
conditions are satisfied,  the "Effective  Date"):  (i) the  consummation of the
sale and purchase of the Purchased Assets pursuant to the Option Agreement; (ii)
approval  of this  Amendment  from the New York State  Attorney  General  (as to
form);  (iii) approval  (satisfactory  to LIPA and Genco) of this Amendment from
the  New  York  State  Comptroller;  and  (iv)  the  Federal  Energy  Regulatory
Commission  shall  have  permitted  this  Amendment  to  become  effective.  The
conditions  set  forth in items  (ii),  (iii)  and (iv)  above  are  hereinafter
referred to as the  "Approvals".  Upon receipt of all the Approvals,  LIPA shall
provide Genco with a copy of each such Approval.

     Section  3.2.  Affirmation  of  Representations.  The  representations  and
warranties  of GENCO  set forth in  Section  21.9.1 of the PSA shall be true and
correct in all material  respects as of the Effective Date. The  representations
and  warranties of LIPA set forth in Section 21.9.2 of the PSA shall be true and
correct in all material respects as of the Effective Date.

     Section 3.4. Miscellaneous.

          (a) This  Amendment  provides for certain values used to calculate the
     rates and charges  payable by LIPA to be  determined  by removing  from the
     values in the PSA in effect prior to the Effective  Date of this  Amendment
     certain amounts associated with the LIPA Generating  Facilities.  The exact
     value to be used is subject  to (i) a final  determination  of whether  the
     E.F.  Barrett  Plant,  the Far Rockaway Plant and the ICUs, or only the Far
     Rockaway Plant and the E.F.  Barrett Plant, or only the Far Rockaway Plant,
     or only the E.F. Barrett Plant, or only the E.F. Barrett Plant and the ICUs
     have become LIPA Generating  Facilities,  and (ii) identification of values
     properly attributable to the LIPA Generating  Facilities.  The final values
     to be used in  calculating  such rates and charges after the Effective Date
     shall be  determined  by mutual  agreement  of the parties no later than 30
     days after the Effective Date.

          (b) Except as amended  hereby,  the PSA shall remain in full force and
     effect.  The  parties  shall  cooperate  in  preparation  of an amended and
     restated PSA which  incorporates the provisions of the original PSA and all
     amendments  thereto,  including  this  Amendment  to be effective as of the
     Effective Date.

          (c) This Amendment shall be governed,  including,  without limitation,
     as to validity,  interpretation and effect, by the Laws of the State of New
     York.

          (d) This Amendment may be executed in two or more  counterparts  which
     together shall constitute a single agreement.


                                       7





     IN WITNESS  WHEREOF,  the parties have caused this Amendment to be executed
and delivered by their duly  authorized  officers or  representatives  as of the
date first above written.

                                                  LONG ISLAND LIGHTING COMPANY
                                                  d/b/a LIPA



                                                  By /s/ ___________________
                                                  Name:  [_________________]
                                                  Title: [_________________]



                                                  KEYSPAN GENERATION LLC



                                                  By /s/ __________________
                                                  Name:  [_________________]
                                                  Title: [_________________]




                                       8






                                                                      FINAL COPY
      Annex F to First Amendment to Option and Purchase and Sale Agreement







                                 THIRD AMENDMENT

                      Dated as of [_______________________]

                                       to



                           ENERGY MANAGEMENT AGREEMENT

                                     between

                          LONG ISLAND LIGHTING COMPANY

                                       and

                       KEYSPAN ENERGY TRADING SERVICES LLC

                                   Dated as of

                                  June 26, 1997








     This THIRD  AMENDMENT  (the  "Amendment")  is made and  entered  into as of
[___________],  by and between LONG ISLAND  LIGHTING  COMPANY  d/b/a LIPA, a New
York corporation  ("LIPA"),  and KEYSPAN ENERGY TRADING SERVICES LLC, a New York
limited liability company formerly known as MarketSpan Trading Services LLC (the
"Energy Manager"),  to the Energy Management Agreement,  by and between LIPA and
the Energy Manager, dated as of June 26, 1997, as previously amended as of March
29, 2002 and as of December [__], 2005 (the "EMA").

                                    RECITALS

     WHEREAS,  Energy Manager is responsible under the EMA, inter alia, for fuel
procurement,  delivery, storage, and management ("Fuel Management Services") for
the GENCO Generating  Facilities to meet the energy  generation  requirements of
the Electricity Customers;

     WHEREAS,  LIPA and  KeySpan  Generation  LLC are  parties  to an Option and
Purchase and Sale Agreement,  dated as of January 1, 2006, as amended by a First
Amendment to Option and Purchase and Sale Agreement,  dated as of March 22, 2007
(the  "Option  Agreement"),  pursuant  to which  LIPA was  granted  an option to
purchase the Far Rockaway Plant (as defined in the Option  Agreement) and/or the
E.F.  Barrett  Plant (as defined in the Option  Agreement)  or the Far  Rockaway
Plant,  the E.F.  Barrett Plant and the ICUs, or the E.F.  Barrett Plant and the
ICUs (as  defined in the Option  Agreement)  and certain  related  assets on the
terms and subject to the conditions set forth therein;

     WHEREAS, on [_____] LIPA exercised its option under the Option Agreement to
purchase [the Far Rockaway Plant,  the E.F. Barrett Plant and the ICUs] [the Far
Rockaway Plant and the E.F. Barrett Plant] [the E.F. Barrett Plant and the ICUs]
[the E.F.  Barrett  Plant] [the Far  Rockaway  Plant] as specified in the Option
Notice (as defined in the Option  Agreement)  delivered by LIPA under the Option
Agreement (the "Purchased Assets");

     WHEREAS,  LIPA  and  [KEYSPAN  CORPORATION  SUBSIDIARY]   ("Operator")  are
contemporaneously entering into an Operation and Maintenance Agreement (the "O&M
Agreement")  pursuant to which LIPA will retain Operator to, among other things,
perform Fuel  Management  Services for the  Purchased  Assets upon the terms and
conditions set forth therein; and

     WHEREAS, as a condition to the consummation of the purchase and sale of the
Purchased  Assets under the Option  Agreement,  LIPA and the Energy  Manager are
entering into this Amendment.

     NOW, THEREFORE,  in consideration of the foregoing and the mutual covenants
and  agreements   hereinafter   set  forth  and  for  other  good  and  valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows:


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                                    ARTICLE 1

                                   DEFINITIONS

     Section 1.1. Definitions.  All capitalized terms used in this Amendment and
not otherwise defined shall have the meanings assigned to them in the EMA.

                                    ARTICLE 2

                                AMENDMENTS TO EMA

     Section 2.1.  Amendment to Section  3.2.1 of the EMA.  Section 3.2.1 of the
EMA is hereby amended by deleting  "$750,000"[or  such other amount,  if the EMA
has been amended prior to this  Amendment] in the 4th line thereof and inserting
in lieu  thereof  "$625,000"[or  an amount that is $125,000  less than the other
amount referred to above]. [If LIPA purchases less than all of the Plants,  then
the $125,000 fee reduction will be pro rated based upon the fuel BTU's purchased
in the year prior to the exercise of the Option Agreement.]


                                    ARTICLE 3

                                  MISCELLANEOUS

     Section  3.1.  Effective  Date.  This  Amendment  shall be  effective  upon
satisfaction  of  the  following  conditions  (the  date  upon  which  all  such
conditions are satisfied,  the "Effective  Date"):  (i) the  consummation of the
sale and purchase of the Purchased Assets pursuant to the Option Agreement, (ii)
approval of this  Amendment  (satisfactory  to Energy Manager and LIPA) from the
New York State  Comptroller,  (iii) approval (as to form) of this Amendment from
the New York  Attorney  General,  and (iv) if required in LIPA's sole  judgment,
receipt of a private letter ruling from the Internal  Revenue  Service that this
Amendment  constitutes a "qualified  management  services  agreement"  under the
Internal Revenue Code of 1986, as amended, and the regulations  thereunder.  The
conditions  set  forth in items  (ii),  (iii)  and (iv)  above  are  hereinafter
referred to as the "Approvals".

     Section  3.2.  Affirmation  of  Representations.  The  representations  and
warranties of the Energy  Manager set forth in Section  13.11.1 of the EMA shall
be true and correct in all  material  respects  as of the  Effective  Date.  The
representations  and warranties of LIPA set forth in Section  13.11.2 of the EMA
shall be true and correct in all material respects as of the Effective Date.

     Section 3.4. Miscellaneous.  Except as amended hereby, the EMA shall remain
in full force and effect. This Amendment shall be governed,  including,  without
limitation, as to validity,  interpretation and effect, by the Laws of the State
of New York.  This Amendment may be executed in two or more  counterparts  which
together shall constitute a single agreement.


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     IN WITNESS  WHEREOF,  the parties have caused this Amendment to be executed
and delivered by their duly  authorized  officers or  representatives  as of the
date first above written.

                                         LONG ISLAND LIGHTING COMPANY
                                         d/b/a LIPA



                                         By /s/ ______________________________
                                         Name:
                                         Title:



                                         KEYSPAN ENERGY TRADING SERVICES LLC



                                         By /s/ ______________________________
                                         Name:
                                         Title:





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