AMENDED AND RESTATED POWER SALES CONTRACT

        THIS AMENDED AND RESTATED POWER SALES CONTRACT (the "Contract") is made
and entered into this 18th day of December 1998 (the "Contract Date"), by and
between SOUTHERN ENERGY CANAL, L.L.C., a Delaware limited liability company
("Seller") and MONTAUP ELECTRIC COMPANY, a Massachusetts corporation
("Purchaser").  Seller and Purchaser are referred to herein individually as a
"Party" and collectively as the "Parties."

RECITALS:

A.      Seller is a party to that certain Asset Sale Agreement dated May 15,
1998 (the "Asset Sale Agreement") between Seller (as successor by assignment to
Southern Energy New England, L.L.C.) and Canal Electric Company ("CEC")
providing for the sale of Canal Unit 1 from CEC to Seller.

B.      Purchaser is a party to that certain Power Contract between Purchaser
and CEC dated December 1, 1965 (the "Original Contract") for the sale of 25% of
the capacity and energy from Canal Unit I to Purchaser, and CEC is a party to
Power Contract s dated December 1, 1965 with each of Boston Edison Company,
Commonwealth Electric Company and Cambridge Electric Light Company and New
England Power Company (the "Other Purchasers' Original Contracts"), each of
which is substantially identical to the Original Contract and provides for the
sale of 25% of the capacity and energy to each of the other purchasers.

C.      In connection with the closing of the Asset Sale Agreement, CEC has
assigned the Original Contract and the Other Purchasers' Original Contracts to
Seller effective as of the closing, and the Parties hereto desire to enter into
this Contract t o amend, restate, supersede and replace the Original Contract,
effective on the closing of the Asset Sale Agreement.

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
and agreements hereinafter set forth, the Parties hereto mutually covenant and
agree as follows:

1 .     Definitions

"Affiliate" means any other entity (other than an individual) that, directly or
indirectly, through one or more intermediaries, controls, or is controlled by,
or is under common control with, such entity.  For purposes of the foregoing,
"control" means the direct or indirect ownership of more than seventy percent
of the outstanding capital stock or other equity interest having ordinary
voting power.

"Asset Sale Agreement" has the meaning set forth in Recital A.

"Base Amount" has the meaning set forth in Section 5(a).

"Bid Procedures" means the bid procedures agreed to by Seller and the Contract
Purchasers Committee from time to time for bidding Canal Unit I to the ISO
consistent with the then effective Operational Characteristics.

"Business Day" means any day other than a Saturday, Sunday or a Holiday that is
observed on a weekday.  If any performance date referenced in this Contract is
not a Business Day, such performance date shall be the next succeeding Business
Day.

"Canal Unit I" means Unit I at the Canal Station in Sandwich, Massachusetts.

"CEC" means Canal Electric Company, formerly known as Plymouth County Electric
Company.

"Commonwealth/Cambridge" means collectively, Commonwealth Electric Company and
Cambridge Electric Company.  Commonwealth/Cambridge shall be deemed to be one
Contract Purchaser.

"Contract Costs" means the costs Purchaser incurs under and in connection with
this Contract.

"Clean Air Act" means the federal environmental statute enacted at 42 U.S.C.A.
7401 et seq. to regulate and control air pollution.

"Contract" means this Amended and Restated Power Sales Contract between Seller
and Purchaser.

"Contract Date" means the date of this Contract.

"Contract Parties" means Seller and the Contract Purchasers.

"Contract Purchasers" means Purchaser and the Other Purchasers.

"Contract Purchasers Committee" means the standing committee of representatives
of the Contract Purchasers and Seller established pursuant to Section 3 of this
Contract.

"Contract Year" means a calendar year during the term of this Contract;
provided, however, the first Contract Year shall begin on the Effective Date
and end on December 31, 1999, and the last Contract Year shall end on the
expiration of the term of t his Contract.

"Creditworthiness Criteria" means an entity which has a credit rating of at
least "BBB-," from the Standard & Poor's Rating Group (a division of McGraw
Hill), or its successor ("S&P") or an equivalent rating from Moody's Investor
Services, Inc. or it s successor ("Moody's").  The Creditworthiness Criteria
may be satisfied by the delivery of collateral security for the obligations of
a Party hereunder in the form of (i) a guarantee in form and substance
reasonably satisfactory to the other Party from an entity that meets the
Creditworthiness Criteria, or (ii) a direct-pay, irrevocable, standby letter of
credit from a major U.S. commercial bank having a credit rating of at least "A"
from S&P or "A-2" from Moody 7 s; each in an amount, form and substance
reasonably approved by the other Party.

"CTC" or "Contract Termination Charges" shall have the meaning set forth in
that certain settlement filed by Purchaser with FERC in Docket Nos.  ER97-2800
et al, which settlement FERC approved with conditions on December 19, 1997.

"Defaulting Party" shall have the meaning set forth in Section 27(a).

"Delivery Point" means the point where capacity, energy and ancillary services
generated by Canal Unit I are delivered to the NEPOOL PTF.

"Demand Charge" shall have the meaning set forth in Section 5.

"Edison" means Boston Edison Company.

"Effective Date" has the meaning set forth in Section 2(a).

"Energy" shall have the meaning assigned to such term by the Restated NEPOOL
Agreement.

"Energy Charge" shall have the meaning set forth in Section 6.

"Emissions Allowances" means NOx Emission Allowances and SO2, Allowances.

"Emissions Charge" shall have the meaning set forth in Section 7.

"Existing NOx Allowances" shall have the meaning set forth in Section 7.

"Event of Default" shall have the meaning set forth in Section 27(a).

"Fuel means number six (No. 6) fuel oil.

"Fuel Procurement Policy" means the policy established by Seller and approved
by the Contract Purchasers Committee to procure Fuel for Canal Unit 1.

"FERC" means Federal Energy Regulatory Commission.

"Good Utility Practice" means any of the practices, methods or acts engaged in
or approved by a significant portion of the electric utility industry during
the relevant time period, or any of the practices, methods and acts that in the
exercise of reasonable judgment in light of the facts known at the time a
decision was made, could have been expected to accomplish the desired result at
reasonable cost consistent with reliability, safety and expedition and giving
due regard for the compliance with applicable law and the requirements of
governmental agencies having jurisdiction and the rules, regulations and
procedures of NEPOOL and the ISO.  Good Utility Practice is not intended to be
limited to the optimum practice, method or act to the exclusion of all others,
but rather to be a spectrum of acceptable practices,, methods or acts.

"Hearing" shall have the meaning set forth in Section 23(b).

"Holiday" means New Year's Day, President's Day, Patriot's Day,  Memorial Day,
Independence Day, Labor Day, Columbus Day, Veteran's Day, Thanksgiving Day, the
day following Thanksgiving Day, and Christmas Day.

"Installed Capacity" shall have the meaning assigned to such term by the
Restated NEPOOL Agreement.

"Interest Rate" means, for any date, two (2) percent over the per annum rate of
interest equal to the prime lending rate as may from time to time be published
in The Wall Street Journal under "Money Rates"; provided, however, that the
Interest Rate s hall never exceed the maximum lawful rate permitted by
applicable law.

"ISO" means ISO New England, Inc., the independent system operator for the New
England region, and its successors and assigns.

"Market Implementation Date" means the effective date of the implementation of
the bid-based market for energy in NEPOOL.

"Mediation Notice" shall have the meaning set forth in Section 23(a).

"NEPCO" means New England Power Company.

"NEPOOL" means the New England Power Pool, and its successors and assigns.

"NEPOOL Defined Products" means any electrical generation-related products
established by NEPOOL which may be produced by Canal Unit 1, including without
limitation, Installed Capacity, Operable Capacity, Energy, Ten Minute Spinning
Reserve, Ten Minute Nonspinning Reserve, Thirty Minute Operating Reserve and
Automatic Generation Control, as such terms are defined by the Restated NEPOOL
Agreement.

"NEPOOL PTF" means the NEPOOL Pool Transmission Facilities, as defined by the
Restated NEPOOL Agreement.

"New Contract Purchasers" means Purchaser and the Other Purchasers which enter
into an Other Purchasers' New Contract, from time to time.

"Non-Defaulting Party" shall have the meaning set forth in Section 27(a)(iii).

"NOx Emission Allowance" means an authorization under Massachusetts air quality
regulations to emit one ton of nitrogen oxides during the period May 1 through
September 30 of any given year.

"NOx Season" means the months of May through September of each year.

"Operational Characteristics" means the operating characteristics of Canal Unit
I as set forth in the NEPOOL NX-12(a) report or any similar report delivered by
Seller to the Contract Purchasers seasonally, as revised from time to by Seller
to reflect changes in the actual physical operating characteristics of Canal
Unit I or as agreed to by the Contract Purchasers Committee in accordance with
Section 3(b)(ii).

"Original Contract" has the meaning set forth in Recital B.

"Other Purchasers" means Commonwealth/Cambridge, Edison and NEPCO and their
respective successors and permitted assigns.

"Other Purchasers' New Contracts" means any agreement between Seller and any of
the Other Purchasers which terminates, amends or replaces such Other
Purchaser's Original Contract.

"Other Purchasers' Original Contracts" has the meaning set forth in Recital B.

"Party" and collectively the "Parties" refers to Seller and/or Purchaser.

"Purchaser" means Montaup Electric Company and its successors and permitted
assigns.

"Restated NEPOOL Agreement" means the NEPOOL Agreement dated December 31, 1996,
as amended from time to time.

"RFP" means a request for proposal as defined in Section 25(b) hereof.

"SCR" means selective catalytic reduction equipment and process installed on
Canal Unit 1.

"SCR Amount" shall have the meaning set forth in Section 5(b).

"SCR Operation Date" means the date the SCR becomes operational for Canal Unit
1.

"Seller" means Southern Energy Canal, L.L.C, and its successors and assigns.

"Senior Officers Committee" means a committee of senior officers of each
Contract Party established in accordance with Section 23(a).

"SO2 Allowance" means an authorization under the Clean Air Act to emit one ton
of sulfur dioxide on an annual basis.

2. Effective Date; Assignment and Amendment

(a)    This Contract shall become effective upon the closing of the Asset Sale
Agreement (the "Effective Date").  If the Effective Date does not occur on or
before December 31, 1998, Purchaser shall have the right to terminate this
Agreement and resume service under the Original Contract if Purchaser gives
Seller written notice of such termination by January 5, 1999.

(b)     Purchaser hereby consents to the assignment of the Original Contract by
CEC to Seller, and the Parties hereby amend and restate in its entirety the
Original Contract.  Such assignment, amendment and restatement shall be
effective on the Effective Date.  Purchaser acknowledges and agrees that it is
not aware of any claims against CEC under the Original Contract and Seller
shall have no liability for any claims or demands of Purchaser under the
Original Contract or this Contract arising with respect to acts or omissions
prior to the Effective Date.

(c)     If FERC has not issued a final non-appealable order acceptable to
Purchaser, in its sole discretion, approving Purchaser's recovery of Contract
Costs as just and reasonable pursuant to the provisions of Purchaser's CTC by
the Reopener Date, t hen within five (5) Business Days after the Reopener Date,
Purchaser may deliver written notice to Seller requiring the Parties to amend
the terms of this Contract so that the charges to Purchaser will be computed in
accordance with the terms of the Original Contract.  As used herein the
Reopener Date" shall be July 3 1, 1999, however, if FERC has issued an order
that is acceptable to Purchaser but is not final and non-appealable by such
date, the Reopener Date shall be automatically extended for sixty (60) days.
Such amendment of this Contract shall also require that the Parties will make
payments to each other as necessary to true-up any charges from the Effective
Date of this Contract until the effective date of any such amendment as
compared to charges under the Original Contract for such period.  Purchaser
shall diligently seek to obtain an order from FERC approving the recovery of
Contract Costs as just and reasonable pursuant to the provisions of Purchaser's
CTC.

(d)     Notwithstanding Sections 5 and 6 below, if the Effective Date occurs
before January 1, 1999, CEC shall bill Purchaser in accordance with the
Original Contract for service provided between the Effective Date and January
1, 1999, and Seller will recover from CEC such portion of the charges as are,
attributable to service between the Effective Date and January 1, 1999.  Seller
will use reasonable efforts to have CEC perform all accountings required under
the Original Contract after January 1, 1999.

3.      Contract Purchasers Committee

(a)     For the mutual advantage of the Contract Parties, a Contract Purchasers
Committee shall be established consisting of one (1) representative from each
of the Contract Purchasers and one (1) representative from Seller. The New
Contract Purchasers shall each have the right to vote and any Other Purchasers
shall have the rig ht to attend meetings but shall only have the right to vote
on matters which require each such Other Purchaser's consent under such Other
Purchaser's Original Contract. The Purchaser and Seller shall each appoint to
the Contract Purchasers Committee officers or representatives that have the
authority to act on behalf of their respective Parties to the extent required
under the terms of this Contract. The Contract Purchasers Committee shall meet
at least once every six months during the ten-n at such times as may be
announced by Seller.  Each member of the Contract Purchasers Committee shall
have the right to call a meeting on at least ten (10) Business Days prior
notice to the other members of the Contract Purchasers Committee.

(b)     The approval of the Contract Purchasers Committee, which approval shall
not be unreasonably withheld, is required for the following:

(i)     a change in the Bid Procedures shall require the unanimous approval of
the Contract Purchasers Committee; provided, however, any change which has or
may have a material adverse effect on Canal Unit I shall require the written
approval of Seller, which shall not be unreasonably withheld;

(ii)    Seller's change in the Operational Characteristics shall require the
unanimous approval of the Contract Purchasers Committee, except any change
required, in Seller's reasonable judgment, to adhere to Good Utility Practice;

(iii)   Seller's scheduling of any planned outage for routine maintenance and
overhauls if such planned outage is scheduled during a time other than the
spring or fall shall require the approval of a majority of the Contract
Purchasers Committee; Seller shall consult with the Contract Purchasers
Committee regarding all planned outages including the planned outage to install
the SCR for Canal Unit 1. Seller shall keep the Contract Purchasers Committee
informed of the outage schedule for the SCR, and changes thereto which in
Seller's reasonable judgment are necessary or prudent to install the SCR shall
not require approval of the Contract Purchasers Committee;

(iv)    any change to the Fuel Procurement Policy shall require the unanimous
approval of the Contract Purchasers Committee;

(v)     the acquisition and disposition of NOx Emission Allowances and SO,
Allowances for Canal Unit I shall require the approval of a majority of the
Contract Purchasers Committee (to the extent acquisitions are approved, Seller
may acquire Emission Allowances from Contract Purchasers in accordance with
Section 7(g)); provided, however, Seller shall not be liable for the failure of
the Contract Purchasers Committee to approve the acquisition of NOx Emission
Allowances and/or SO, Allowances sufficient for the operation of Canal Unit 1;

(vi)    the appointment of an agent by Seller pursuant to Sections 8 and 9
which is not an Affiliate of Seller shall require the approval of a majority of
the Contract Purchasers Committee;

(vii)   instituting a material capital addition or other action for which
approval of the Contract Purchasers Committee is required pursuant to Section
9 shall require the approval of a majority of the Contract Purchasers
Committee.

(c)     Seller's representative shall have the night to attend all Contract
Purchasers Committee meetings but shall not have the power to vote except in
the case of a deadlock on a matter which Seller determines should be resolved
to comply with Good Utility Practice.  In the event an Affiliate of Seller
becomes a Contract Purchaser (as a result of an assignment of an Other
Purchaser's Original or New Contract), Seller's right to vote in the preceding
sentence shall terminate, but Seller's Affiliate shall have the power to vote
on all matters except the approval of any fuel or other contract between
Seller and an Affiliate of Seller which requires the consent of the Contract
Purchasers Committee.  In such instance the unanimous vote of the other
members of the Contract Purchasers Committee shall be required to approve such
matters.

(d)     In the event of a deadlock in the Contract Purchasers Committee which
is not resolved by Seller in accordance with Section 3(c), any Party
may give notice to the other Party instituting the dispute resolution
provisions of Section 23 hereof.

(e)     Seller and Purchaser acknowledge that they have reached agreement as to
the initial Bid Procedures for the period prior to the Market Implementation
Date and for the period from and after the Market Implementation Date.  Any
change to the Bid Procedures shall be made in accordance with Section 3(b)(i)
except Seller shall have the right to make any change that in Seller's
reasonable judgment is necessary to comply with NEPOOL or ISO rules and
procedures or any change in the Operational Characteristics.

4.      Sale, Purchase and Power Price

(a)     Commencing on the Effective Date and during the term of this Contract,
Seller shall make available and provide to Purchaser and Purchaser shall be
entitled to twenty-five percent (25%) of the capacity and associated energy,
along with any other generation- related products produced by Canal Unit 1
including, without limitation, operable capacity, operating reserves and
automatic generation control.  Purchaser acknowledges that it has no right to
any output of Canal Unit I following the termination of this Contract unless
otherwise agreed to in writing by Seller.

(b)     With respect to each month commencing on the Effective Date, Purchaser
shall pay Seller the amounts provided in this Contract.

5.      Demand Charge

The Demand Charge for each respective month during the term of this Contract
shall be the Base Amount for such month plus the SCR Amount for such month.  If
the Effective Date occurs on a date other than the first day of a month, the
Demand Charge for such month shall be appropriately pro-rated.

(a)     Base Amount.  The Base Amount for each month during the term of this
Contract shall be as follows:

Year
1999 - $734,895.00 each month

2000 - $691,042.00 each month

2001 - $748,271.00 each month

2002 - $758,121.00 for each month from January through September, and
$236,499.00 for October.

(b)     SCR Amount.  The SCR Amount for each month during the term of this
Contract beginning with January 2000 shall be:

Year
2000 - $72,500.00 each month
2001 - $71,042.00 each month
2002 - $89,767.00 each month from January through September, and $29,594.00 for
October.

Notwithstanding the foregoing, if the SCR Operation Date has not occurred on or
prior to the beginning of the NOx Season in 2000 or any year thereafter, the
SCR Amount for such year shall be reduced as follows:

(i)     For each month during the NOx Season prior to the SCR Operation Date,
the aggregate amount of the SCR Amount for such year shall be reduced by one-
fifth (1/5th).

(ii)    If the SCR Operation Date occurs during a month in the NOx Season, the
SCR Amount shall be prorated for such month.

(iii)   If the SCR Operation Date has not occurred on or prior to May 1, 2000,
any amounts of the SCR Amount which have been paid by Purchaser prior to the
SCR Operation Date shall be used by Seller as an advance to pay for Purchaser's
share of any N Ox Allowances needed for the operation of Canal Unit 1 in
accordance with Section 7(b) hereof, and any residual advance shall then be
used as an offset against any further SCR Amount payable by Purchaser
hereunder.

Seller shall notify the Contract Purchasers Committee of the occurrence of the
SCR Operation Date.  Except as otherwise provided above, Seller shall have no
liability to Purchaser for any delay in the SCR Operation Date.

6.      Energy Charge

The Energy Charge shall be 25% of all Fuel and Fuel handling costs incurred by
Seller for Canal Unit I in accordance with the following:

(a)    Fuel shall be purchased by Seller from any Fuel supplier, including any
Affiliate of Seller, in accordance with the Fuel Procurement Policy in effect
from time to time.  The Parties acknowledge and agree that they have reached
agreement as to the initial Fuel Procurement Policy.  Any changes to the Fuel
Procurement Policy shall be made in accordance with Section 3(b)(iv).


(b)     The delivered cost of Fuel shall be charged to the Contract Purchasers
monthly at Seller's cost based upon the sum of the daily deliveries to the
Canal Unit 1 day tank.

7.      Emissions Allowances
(a)     Seller shall allocate to Canal Unit I fifty percent (50%) of the NOx
Emission Allowances allocated to the Canal Station (Canal Unit 1 and Canal Unit
2) by governmental agencies (the "Existing NOx Allowances").

(b)     To the extent the Existing NOx Allowances are insufficient for the
operation of Canal Unit I prior to the SCR Operation Date, Purchaser shall pay,
as the "Emissions Charge," 25% of the cost of all NOx Emission Allowances
acquired by Seller for Canal Unit I to comply with emission requirements
applicable to Canal Unit 1. Seller shall charge Purchaser for twenty five
percent (25%) of the cost of any NOx Emission Allowances, in excess of the
Existing NOx Allowances, purchased by Seller from CEC at the closing of the
Asset Sale Agreement.  The amounts for the purchased NOx Emission Allowances
shall be charged to the Contract Purchasers as the NOx Emission Allowances are
used, and the purchased NOx Emission Allowances shall be deemed to be used
prior to the Existing NOx Allowances.  Seller may charge the Contract
Purchasers interest on the purchase price of unexpensed NOx Allowances at the
Interest Rate minus 2% per annum.

(c)     Seller is planning to install an SCR for Canal Unit I to become
operational on or before May 1, 2000 which will be designed to achieve a
reduction in NOx emissions for Canal Unit 1. Seller's cost of installing the
SCR is included in the SCR A mount in the Demand Charges for 2000 and
thereafter, and Purchaser shall not otherwise be responsible for any capital or
operations and maintenance costs associated with the SCR.

(d)     Purchaser shall pay Seller for 25% of the cost of  SO2 Allowances which
are required for the operation of Canal Unit 1 in excess of the SO, Allowances
allocated to Canal Unit I prior to the Effective Date.

(e)     If Seller projects that Seller will have excess Emission Allowances for
any year during the term of this Contract, Seller shall so notify the Contract
Purchasers Committee and Seller shall liquidate such Emission Allowances or
retain such Emission Allowances for use in following years in accordance with
the direction of the Contract Purchasers Committee.  Seller shall distribute to
Purchaser 25% of the proceeds of such a liquidation.

(f)     If Seller is planning to purchase additional NOx Allowances in
accordance with the terms of this Agreement, Purchaser shall have the night to
provide NOx Allowances to Seller, and in such event Purchaser shall receive a
credit for the amount of NOx Allowances provided to Seller.  Such credit shall
be used to offset the charges Purchaser is obligated to pay for the NOx
Allowances acquired by Seller for Canal Unit I or other charges pursuant to
this Contract.

(g)     Seller shall pay or bear the cost of any fine or penalty arising from
Seller's failure to observe and comply with Good Utility Practices in the
operation of Canal Unit 1, where such failure results in insufficient Emissions
Allowances for Canal Unit 1. Seller shall under no circumstances be obligated
to operate Canal Unit I in a manner that would result in noncompliance with any
emissions related requirement.

8. Scheduling Protocol Prior to the Market Implementation Date
During the term of the Contract up to the Market Implementation Date:

(a)     Seller shall provide information regarding Canal Unit 1 to the ISO in
accordance with the Bid Procedures to enable the ISO to dispatch Canal Unit 1.

(b)     Seller shall be responsible for coordinating the submission of all
necessary information on behalf of Contract Purchasers and for communicating
the outcome of the dispatch to Contract Purchasers.

(c)     Purchaser shall be entitled to 25% of the capacity and associated
energy along with any other generation-related products produced by Canal Unit
1, including without limitation, operable capacity, operating reserves, and
automatic generation control.

(d)     Seller and Purchaser shall take all action necessary in accordance with
NEPOOL procedures to ensure that Purchaser shall receive appropriate credit for
its 25% of the generation related products produced by Canal Unit 1, including
without limitation, energy, installed capacity, operable capacity, operating
reserves, and automatic generation control resulting from the ISO dispatch of
Canal Unit 1.

(e)     Seller may appoint an agent to perform its obligations under this
Section 8. The appointment of any agent which is not an Affiliate of Seller
shall require the consent of a majority of the Contract Purchasers Committee,
which consent may not be unreasonably withheld.

9. Scheduling Protocol After Market Implementation Date During the term of the
Contract from and after the Market Implementation Date:

(a)     Purchaser shall receive its 25% share of Installed Capacity and
Operable Capacity and shall be responsible for bidding such Installed Capacity
and Operable Capacity to the ISO.  Purchaser shall be entitled to all payments
from ISO for such share of Installed Capacity and Operable Capacity.

(b)     Seller on behalf of all Contract Purchasers shall submit bids to the
ISO for all NEPOOL Defined Products, other than Installed Capacity and Operable
Capacity, in accordance with the Bid Procedures and the Operational
Characteristics of Canal Unit I in order to enable the ISO to dispatch Canal
Unit I in accordance with NEPOOL procedures.

(c)     Seller and Purchaser shall take all action necessary in accordance with
NEPOOL procedures to ensure that Purchaser shall receive credit with the ISO
for Purchaser's 25% of all NEPOOL Defined Products resulting from Canal Unit 1.

(d)     Seller shall be responsible for coordinating the submission of the
bids, in compliance with the Bidding Procedures, to ISO on behalf of Contract
Purchasers and Seller shall communicate the outcome of the dispatch to Contract
Purchasers.  The Purchaser and Seller shall cooperate to provide information to
each other to comply with ISO rules and procedures.

(e)     Seller may appoint an agent to perform its obligations under this
Section 9. The appointment of any agent which is not an Affiliate of Seller
shall require the consent of a majority of the Contract Purchasers Committee,
which consent may not be unreasonably withheld.

10.     Accountings and Payment

(a)     Seller will deliver to Purchaser an invoice within ten (I 0) Business
Days after the end of the month, or at such later date as is practicable, for
all amounts payable by Purchaser with respect to the previous month.  Such
bills will be rendered in such detail as Purchaser may reasonably request.  All
bills are due and payable on the last Business Day of the month when rendered,
but no earlier than seven (7) Business Days after receipt of the invoice.

Each monthly billing may include expenses or charges for the amounts payable
hereunder, estimated on a periodic basis.  Adjustments of items included in
prior billings shall be made in current billings.  Adjustments shall accrue
interest at the Interest Rate.  Adjustments of such items may be made at any
time within one year after the invoice as the result of-.

(1)     Occurrences which change amounts owed or paid to third parties by
Seller or owed or paid to Seller by third parties.

(2)    Errors or omissions in computing the billing as required by this
Contract.

Purchaser shall pay Seller by wire transfer to an account specified by Seller
from time to time.

(b)     Within 120 days after the end of each Contract Year, Seller shall
render to Purchaser an accounting of such Contract Year's fuel usage and other
amounts billed as a pass through to Purchaser, and any adjustment of the total
amount billed for the period of said accounting shall be made in accordance
with said yearly accounting.

No Party shall have the night to challenge said yearly accounting or
adjustment, to invoke dispute resolution under Section 23 of the same, or to
bring any court or administrative action of any kind questioning the propriety
of said accounting, with respect to any adjustment under paragraph (a)(2) of
this Section (namely, any error or omission in computing the billing as
required by this Contract), after a period of one year from the date said
accounting is rendered.

For purposes of this one year limitation provision, any adjustments made under
paragraph (a)(1) of this Section (namely, adjustments occasioned by occurrences
changing amounts owed to or by third parties), shall be deemed to have been
made, whether or not actually made, in the year in which said adjustments are
finally determined as between Seller and third parties.

(c)     Seller's books and records which directly pertain to the charges
rendered to Purchaser shall be open to reasonable inspection and audit by
Purchaser.

(d)     Overdue payments shall accrue interest at the Interest Rate from, and
including, the due date to, but excluding, the date of payment.

11.     Delivery

The electricity generated for the Purchaser by Canal Unit I shall be delivered
to Purchaser in the form of three (3) phase, sixty (60) cycle, alternating
current at the Delivery Point.  Purchaser will make its own arrangements for
the transmission of power beyond the Delivery Point.

12.     Term

Unless earlier terminated pursuant to Section 2, 17 or 27, this Contract shall
expire on October 10, 2002.

13.     Purchaser's Right to Replacement Contract

Purchaser shall have the option to enter into a new contract for the purchase
of 25% of the capacity, energy, ancillary services and other NEPOOL Products
from Canal Unit I for the five (5) year period commencing with the expiration
of this Contract by delivering written notice to Seller on or before December
31, 1999 of its irrevocable election to enter into such contract.  The terms
of such replacement contract shall be as set forth on Schedule 1 attached
hereto.  If such option is exercised, the Parties shall negotiate in good
faith to finalize and execute the replacement contract promptly after December
31, 1999.

14.     Force Majeure

Seller shall use all due diligence in accordance with Section 18 to deliver to
Purchaser regularly and without interruption the electricity to which it is
entitled under this Contract, but Seller shall be excused from delivering
electricity hereunder if and to the extent that it shall be prevented from
doing so by action of any court or any public authority or by reason of delays
in construction, or total or partial shutdown of Canal Unit I by reason of
breakdown, scheduled or unscheduled repair s or maintenance, strike, labor
troubles, civil disorders, flood, fire or any cause beyond the reasonable
control of Seller.  Seller will use due diligence to resume normal delivery of
electricity in accordance with Good Utility Practice.

15.     Insurance

Seller agrees to keep insured at all times Canal Unit I and all appurtenant
facilities against all property risks on which insurance is available at
commercially reasonable terms and conditions from reputable insurance
companies including but without limitation thereto:

(a)     fire, explosion, wind, flood, earthquake, falling aircraft, vandalism,
malicious mischief, not and civil commotion.

(b)     full breakdown of turbines, explosion, collapse or rupture of boilers
and pressure vessels.

All the foregoing insurance shall be carried in an amount at least equal to the
reproduction cost new of the insured property less depreciation or, at Seller's
option, a limit equal to two times the probable maximum loss for the facility
as determined by an independent expert.  Seller also agrees to carry basic
public liability insurance with limits of at least $100,000/$1,000,000, basic
property damage insurance with limits of at least $500,000 and a comprehensive
excess combined personal injury and property damage policy with limits of at
least $15,000,000.

16. No Right of Setoff
Except as expressly provided in Section 5(b), neither Party shall be entitled
to set off, deduct or withhold against the payments required to be made by it
under this Contract any amounts which may from time to time be owed to it by
the other Party.  However, the foregoing shall not affect in any other way the
rights and remedies which a Party may have with respect to any such amounts.

17.     Cancellation of Contract

(a)     If Seller is unable to make energy deliveries to Purchaser because
either (1) Canal Unit I is damaged to the extent of being completely or
substantially completely destroyed, whether or not by reason of causes noted in
Section 14 hereof, (2) Canal Unit I is taken by exercise of the right of
eminent domain or a similar right or power; or (3) (A) Canal Unit I cannot be
used because a necessary license or other necessary public authorization cannot
be obtained or is revoked despite Seller's reasonable efforts in accordance
with Good Utility Practice to maintain such license or public authorization, or
because the use of such license or such authorization is made subject to
specified conditions which are not met, and (B) the situation cannot be
rectified to an extent which will permit Seller to make deliveries to Purchaser
from Canal Unit 1, then and in each such case, either Party may cancel this
Contract upon at least ten (10) Business Days prior notice to the other Party.

(b)     In all other circumstances no cancellation of the Contract or
discontinuance of payments shall be permitted.

18.     Operation and Maintenance
Seller will operate and maintain Canal Unit I in accordance with Good Utility
Practice, all applicable law and in' Contract Purchasers' best interest
consistent with Good Utility Practice.  Outages for inspection, maintenance and
necessary capital replacements will be scheduled in accordance with Good
Utility Practice and insofar as practicable shall be mutually agreed upon by a
majority of the Contract Purchasers Committee to the extent the capital
replacements affect the Contract Parties' rights and obligations under this
Contract.  In the event of an unscheduled outage due to the failure or
impairment of any equipment or other cause, Seller will use its reasonable
efforts in accordance with Good Utility Practice to restore Canal Unit I t o
service as soon as reasonably practical.  Seller agrees to use due diligence to
maintain at Canal Unit I fuel inventory for the operation of Canal Unit 1 in
accordance with Good Utility Practice.

19.     Change in Law

In the event of a change in law, regulation or other legal requirement after
the date of this Contract which materially increases Seller's costs of
providing service to Purchaser, Seller shall confer with the Contract
Purchasers Committee to discuss the most economical manner to address such
change in costs in an effort to minimize the increase in costs.  Seller shall
obtain the approval of a majority of the Contract Purchaser's Committee as to
the prudent course of action if such action require s any additional cost,
including without limitation any material capital addition.  Seller shall
adjust the Demand Charge and/or the Energy Charge in a reasonable manner to
allow Seller to recover from Purchaser 25% of the increased costs resulting
from such change in law, regulation or other legal requirements and incurred in
accordance with the actions approved by a majority of the Contract Purchasers
Committee.  Twenty-five percent (25%) of the reasonable costs of any such
material capital addition shall be passed through to Purchaser at a reasonable
rate of return, amortized over the normal useful life of the capital addition.
The Contract Purchasers Committee shall not unreasonably withhold its consent
to action proposed by Seller to respond to such change in law, regulation or
other legal requirement, and in no event shall Seller be prevented from
complying with such change.  In the event of a change in law, regulation or
other legal requirement after the date of this Contract which materially
decreases Seller's costs of providing service to Purchaser, Seller shall adjust
the Demand Charge and/or the Energy Charge in a reasonable manner to pass
through to Purchaser 25% of the benefits of any cost reduction resulting from
such change.

20.    Taxes

Purchaser shall pay any and all sales taxes, gross receipts taxes, excise
taxes, franchise fees or any other fees or charges, including, without
limitation, any BTU tax or carbon tax, imposed by any federal, state or local
government or any regulatory agency over the provision of service hereunder or
Canal Unit 1 (including without limitation any tax imposed on NEPOOL Defined
Products produced by Canal Unit I or any tax imposed on interconnection
services) with the exception of income taxes or property taxes.  Seller
represents and warrants that as of the date hereof it is not aware of any such
taxes, fees or charges which are imposed by any governmental authority and
which would be payable by Purchaser in accordance with this Section 20.

21.     Interpretation

The interpretation and performance of this Contract shall be in accordance with
and controlled by the law of the Commonwealth of Massachusetts.

22.     Regulation

This Contract, and all rights, obligations and performance of the Parties
hereunder, are subject to all present and future applicable federal, state and
local laws and to all present and future duly issued and promulgated orders,
regulations, requirements and other duly authorized action of any governmental
authority having jurisdiction in the premises.

23.     Dispute Resolution

(a) In case of any dispute between the Parties and after notice of such dispute
has been delivered from one Party to the other Party, such dispute shall be
referred to the Contract Purchasers Committee for resolution.  If the Contract
Purchasers Committee fails to resolve the dispute in a manner satisfactory to
each Party within 30 days after notice of said dispute is received by a Party,
either Party may submit the matter to a Senior Officers Committee composed of
the Presidents or other senior officers of each Party.  Each Contract Party
shall designate a senior officer to serve on the Senior Officers Committee for
the purpose of resolving the dispute.  If the Senior Officers Committee fails
to resolve the dispute within 15 days following the submission of the dispute
to said committee, either Party may give the other Party notice (a "Mediation
Notice") that the dispute shall be referred to mediation in accordance with
Section 23(b).  If the dispute between the Parties involves one o r more of the
Other Purchasers, each of the Other Purchasers shall have the rights of the
Parties under this Section 23(a).

(b)     If either Party delivers a Mediation Notice to the other Party, the
Parties shall participate in a non-binding dispute resolution procedure whereby
each Party presents its case at a hearing (the "Hearing") before a neutral
mediator approved by each Party.  If the Parties fall to agree upon the
mediator within seven (7) days after the date of the Mediation Notice, either
Party may direct the American Arbitration Association to select the mediator.
Each Party may be represented at the Hearing by lawyers.  If the mediation
proceedings do not result in a resolution of the dispute, such mediation
proceedings shall be without prejudice to the legal position of either Party.
The Parties shall each bear their respective costs incurred in connection with
this procedure, except that the fees and expenses of the neutral mediator and
the costs of the facility for the Hearing shall be allocated in the amount of
fifty percent (50%) to each Party.  If the dispute is not resolved pursuant to
Section 23(a) or within twenty one (21) days after the date of the Mediation
Notice, either Party may pursue any and all remedies and legal proceedings as
are available.  If the dispute between the Parties involves one or more of the
Other Purchasers, each of the Other Purchasers shall have the rights of the
Parties under this Section 23(b), and the fees and expenses of the neutral
mediator and the costs of the facility for the Hearing shall be allocated
equally among the Parties and the Other Purchasers involved in the dispute.

(c)     Nothing in this Section 23 shall limit the rights of either Party to
seek in any court of competent jurisdiction such interim relief as may be
needed to maintain the status quo, to prevent irreversible harm, or otherwise
protect the subject matter of the mediation until the matter shall have been
finally resolved; provided, however, any such interim relief ordered by a court
shall not determine or prejudge the substantive issues to be decided by such
mediation.

(d)     Notwithstanding anything to the contrary in this Section 23 or any
other provision in this Contract, if Purchaser disputes an amount invoiced
pursuant to Section 10 of this Contract, Purchaser shall pay the invoiced
amount in full prior to invoking this Section 23, subject to later return with
interest accrued in the interim at the Interest Rate.

24.     Communications and Addresses

Except as the Parties may otherwise agree, any notice, request, bill or other
communication from one Party to the other, relating to this Contract or the
rights, obligations or performance of the Parties hereunder, shall be in
writing and shall be effective upon delivery to the other Party.  Any notice,
request, demand, or statement, which may be given to or made upon a Party
hereto by the other Party hereto under any of the provisions of this Contract,
shall be in writing unless it is specifically provided otherwise herein, and
shall be treated as duly delivered either ( 1) when the same is delivered in
person or by reliable courier service or (2) three (3) days after being
deposited in the United States mail, by certified mail, postage prepaid, and
properly addressed to the Party to be served at the addresses listed below the
signature of such Party, or such other address as a Party may notify the other
in accordance with this Section 24.

25.     Amendments

(a)     Any amendments to this Contract shall be in writing.  If the terms of
any of the Other Purchasers' New Contracts, as amended from time to time, are
different from the terms of this Contract, Seller shall give Purchaser the
right to amend this Contract to the same or substantially similar terms to
such Other Purchaser's New Contract.  Purchaser shall notify Purchaser in
writing within 15 days after Seller enters into any Other Purchaser's New
Contract or any amendment thereto which contains different terms than the
terms herein.  Purchaser shall have 15 days after receipt of such notice to
enter into an amendment of this Contract to contain such different terms.

(b)     Prior to Seller or its Affiliate accepting an assignment of any Other
Purchaser's New Contract or Original Contract, Seller shall first issue a
request for proposals (an "RFP") to Purchaser regarding the terms (other than
price) under which Seller or its Affiliate is willing to accept such an
assignment.  The RFP shall allow Purchaser to submit an offer for the
assignment of this Contract to Seller or its Affiliate, and such offer shall
not be deemed to be nonconforming simply because this Contract contains
different terms than an Other Purchaser's Original Contract or New Contract.
If Purchaser submits a conforming offer, Seller or its Affiliate shall not
accept an assignment from an Other Purchaser for a price that is less favorable
to Seller than the offer submitted by Purchaser.  Seller and its Affiliate
shall not be under an obligation to accept any offer in response to the RFP,
and if Seller or its Affiliate changes the terms under which it intends to
accept an assignment of an Other Purchaser's Original Contract or New Contract,
Seller shall reissue the RFP.

(c)     Seller's obligation under Section 25(b) shall terminate upon
Purchaser's assignment of this Contract to a third party.

26.     Assignment

(a)     Neither Party may assign this Contract without the written consent of
the other Party except in accordance with this Section 26.

(b)     Upon not less than fifteen (15) days prior written notice to
Purchaser, Seller may assign this Contract to any party which acquires Canal
Unit I and which meets the Creditworthiness Criteria, provided, however,
Purchaser shall not unreasonably withhold its consent if a proposed assignee is
a direct or indirect subsidiary of an entity which meets the Creditworthiness
Criteria.  Seller may assign this Contract as security to its lenders and their
agents.

(c)     Upon not less than fifteen (1 5) days prior written notice, Purchaser
may assign this Contract to any party which meets the Creditworthiness Criteria
provided, however, Seller shall not unreasonably withhold its consent if a
proposed assignee is a direct or indirect subsidiary of an entity which meets
the Creditworthiness Criteria.  Purchaser may assign this Contract as security
to its lenders and their agents.

(d)     Any other assignment of this Contract shall not operate to relieve the
assigning Party of its obligations under this Contract without the written
consent of the other Party.  Each Party agrees to execute such consents as are
reasonably requested by the other Party for an assignment to its lenders.

27.     Default: Remedies; Limitation of Liability

(a)     As used herein, "Event of Default" shall mean, in relation to a Party
(the "Defaulting Party"):

(i)     Purchaser as the Defaulting, Party fails to make any payment that is
required hereunder to be made to Seller when due, and such failure continues
for five (5) Business Days after written notice from Seller;

(ii)    Seller as the Defaulting Party breaches Section 4(a) by making
deliveries of Purchaser's portion of NEPOOL Products from Canal Unit 1 to third
parties;

(iii)   the Defaulting Party fails to perform any of its material obligations
hereunder, other than as provided in subsection (i) or (ii), and such failure
is not excused by force majeure and continues for sixty (60) days after the
Defaulting Party receives written notice from the other Party (the "Non
Defaulting Party") of such failure; provided, however, with respect to a
failure to cure any such obligation, if a period in excess of sixty (60) days
is required to cure such failure, the Defaulting Party shall have such
additional amount of time, not to exceed one hundred eighty (I 80) days, as may
be necessary to cure such failure provided that the Defaulting Party uses
reasonable diligence to remedy such failure in accordance with Good Utility
Practice; or

(iv)    the Defaulting Party makes an assignment or general arrangement for the
benefit of creditors, files a petition in, or otherwise commences any
proceedings in, bankruptcy or under similar law, or otherwise becomes bankrupt
(however evidenced).

(b)     In the event Seller falls to deliver energy from Canal Unit I as a
result of Seller's breach of its obligations under Section 18 which is not
excused by Section 14, during any cure period provided in Section 27(a)(Iii)
Purchaser shall be entitled to all remedies available under Section (c) except
termination of this Contract.  Purchaser shall give Seller prompt written
notice whenever Purchaser believes that the provisions of this Section 27(b)
are applicable.

(c)     Upon an Event of Default, the Non-Defaulting Party may resort to all
remedies available at law or in equity, subject to the limitations set forth in
Section 27(d).  If it is necessary for any Party to institute legal proceedings
or retain an attorney in attempting to collect a delinquent bill. the other
Party shall pay any and all expenses and costs of collection, including
reasonable attorneys' fees, incurred by such collecting Party.

(d)     Except as otherwise explicitly stated herein, in no event shall either
Party be liable for punitive, exemplary, special, consequential or incidental
damages arising from any breach or default under this Contract, or from any act
or omission under or in connection with this Contract.  Seller's rights to
payment of the Demand Charge, Energy Charge and other amounts payable hereunder
shall not be deemed to be consequential damages.  Purchaser's rights to payment
for its incremental costs of Energy and other NEPOOL Defined Products as
damages in the event of a breach of this Contract shall not be deemed to be
consequential damages.

28.     Indemnity

Each Party expressly agrees to indemnify, hold harmless and defend the other
Party against all claims, liability, costs or expense for loss, damage or
injury to persons or property in any manner directly or indirectly connected
with or arising out of, the generation, transmission or distribution of
electric energy on its own side of the Delivery Point.

29.     Prior Agreements Superseded

Unless otherwise specifically provided, upon the Effective Date this Contract
supersedes any and all prior agreements and contracts by and between the
Parties relative to Canal Unit 1, including without limitation the Original
Contract.

This Contract has been made within the Commonwealth of Massachusetts and shall
bind and inure to the benefit of the Parties hereto and their respective
successors and permitted assigns.

IN WITNESS WHEREOF, the Parties have caused this Amended and Restated Power
Sales Contract to be executed by their officers duly authorized thereunto and
have duly caused their corporate or company seals to be affixed hereto.

SOUTHERN' ENERGY CANAL, L.L.C.

By: /s/ Henry Coolidge
Henry Coolidge, President
Address:
c/o Southern Energy Resources, Inc.
900 Ashwood Parkway, Suite 500
Atlanta, GA 30338
Attention: Alan Harrelson
Vice President North American Assets


MONTAUP ELECTRIC COMPANY

By: /s/ Kevin A. Kirby
Kevin A. Kirby, Vice President
Address:
Montaup Electric Company
c/o EUA Service Corporation
75 West Center Street
West Bridgewater, MA 02379

SCHEDULE 1

TERMS OF REPLACEMENT CONTRACT
Same terms as the Power Contract, except:
Demand Charge shall be 25% of the following:

        October 11, 2002 through December 31, 2002              $ 9,370,000.00
        January 1, 2003 through December 31, 2003               $42,260,000.00
        January 1, 2004 through December 31, 2004               $46,460,000.00
        January 1, 2005 through December 31, 2005               $52,520,000.00
        January 1, 2006 through December 31, 2006               $53,810,000.00
        January 1, 2007 through October 10, 2007                $55,130,000.00

Any increases to the Demand Charge in the existing contract as a result of
change of law shall be added to the above charges.

Any increases in property taxes following 2005 will be passed through to
Contract Purchasers.

Voting among the Contract Purchasers Committee will be weighted based on
percentage of entitlement from Canal Unit 1.  For example, if two Contract
Purchasers elect to enter into the Replacement Contract and Seller's Affiliate
contracts for the remaining 50%, Seller's Affiliate would have 50% of the votes
on the Contract Purchasers Committee.

Each Party shall negotiate in good faith to make other reasonable modifications
to terms of the Contract as may be requested by either Party.