Document:

EX-10.10

Exhibit 10.10

EXECUTION COPY

 

 

PURCHASE AND SALE AGREEMENT

by and between

ORION POWER HOLDINGS, INC.,

as Seller,

RELIANT ENERGY, INC.

as Guarantor,

and

ASTORIA GENERATING COMPANY ACQUISITIONS, L.L.C.

as Buyer

dated as of September 30, 2005

 

 

 

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 
	ARTICLE I 

DEFINITIONS AND CONSTRUCTION
	Section 1.01

	 	Definitions and Construction
	 	 	1	 
	 
	 	 	 	 	 	 
	ARTICLE II 

PURCHASE AND SALE AND CLOSING
	 
	 	 	 	 	 	 
	Section 2.01

	 	Purchase and Sale
	 	 	1	 
	Section 2.02

	 	Purchase Price
	 	 	2	 
	Section 2.03

	 	Closing
	 	 	2	 
	Section 2.04

	 	Closing Deliveries by Seller to Buyer
	 	 	2	 
	Section 2.05

	 	Closing Deliveries by Buyer
	 	 	3	 
	Section 2.06

	 	Post-Closing Adjustment
	 	 	3	 
	Section 2.07

	 	Allocation of Purchase Price
	 	 	4	 
	Section 2.08

	 	Calculation of Estimated Purchase Price
	 	 	5	 
	 
	 	 	 	 	 	 
	ARTICLE III 

REPRESENTATIONS AND WARRANTIES REGARDING THE SELLER ENTITIES
	 
	 	 	 	 	 	 
	Section 3.01

	 	Organization and Qualification
	 	 	6	 
	Section 3.02

	 	Authority
	 	 	6	 
	Section 3.03

	 	No Conflicts; Consents and Approvals
	 	 	6	 
	Section 3.04

	 	Capitalization
	 	 	7	 
	Section 3.05

	 	Legal Proceedings
	 	 	7	 
	Section 3.06

	 	Brokers
	 	 	7	 
	 
	 	 	 	 	 	 
	ARTICLE IV 

REPRESENTATIONS AND WARRANTIES REGARDING THE COMPANIES
	 
	 	 	 	 	 	 
	Section 4.01

	 	Organization and Qualification
	 	 	7	 
	Section 4.02

	 	No Conflicts; Consents and Approvals
	 	 	8	 
	Section 4.03

	 	Capitalization; Subsidiaries
	 	 	8	 
	Section 4.04

	 	Financial Statements
	 	 	8	 
	Section 4.05

	 	Absence of Undisclosed Liabilities; Certain Developments
	 	 	9	 
	Section 4.06

	 	Litigation
	 	 	10	 
	Section 4.07

	 	Compliance with Laws
	 	 	10	 
	Section 4.08

	 	Contracts
	 	 	10	 
	Section 4.09

	 	Taxes
	 	 	12	 
	Section 4.10

	 	Employee Benefit Plans; ERISA
	 	 	13	 
	Section 4.11

	 	Labor and Employment
	 	 	15	 
	Section 4.12

	 	Environmental Matters
	 	 	15	 
	Section 4.13

	 	Intellectual Property
	 	 	16	 
	Section 4.14

	 	PUHCA; Regulation as Utility
	 	 	16	 
	Section 4.15

	 	Real Property
	 	 	17	 
	Section 4.16

	 	Insurance
	 	 	17	 

i

 

	 	 	 	 	 	 	 
	Section 4.17

	 	Affiliate Transactions
	 	 	17	 
	Section 4.18

	 	Permits
	 	 	17	 
	Section 4.19

	 	Sufficiency of Assets
	 	 	17	 
	 
	 	 	 	 	 	 
	ARTICLE V 

REPRESENTATIONS AND WARRANTIES OF BUYER
	 
	 	 	 	 	 	 
	Section 5.01

	 	Organization and Qualification
	 	 	18	 
	Section 5.02

	 	Authority
	 	 	18	 
	Section 5.03

	 	No Conflicts; Consents and Approvals
	 	 	18	 
	Section 5.04

	 	Legal Proceedings
	 	 	19	 
	Section 5.05

	 	Compliance with Laws and Orders
	 	 	19	 
	Section 5.06

	 	Brokers
	 	 	19	 
	Section 5.07

	 	Acquisition as Investment
	 	 	19	 
	Section 5.08

	 	Financial Resources
	 	 	19	 
	Section 5.09

	 	No Knowledge of Seller’s Breach
	 	 	19	 
	Section 5.10

	 	Opportunity for Independent Investigation
	 	 	19	 
	 
	 	 	 	 	 	 
	ARTICLE VI 

COVENANTS
	 
	 	 	 	 	 	 
	Section 6.01

	 	Access of Buyer
	 	 	20	 
	Section 6.02

	 	Conduct of Business Pending the Closing
	 	 	20	 
	Section 6.03

	 	Resignation of Members, Managers, Officers and Directors
	 	 	24	 
	Section 6.04

	 	Use of Certain Names
	 	 	24	 
	Section 6.05

	 	Support Obligations
	 	 	24	 
	Section 6.06

	 	Excluded Assets
	 	 	26	 
	Section 6.07

	 	Termination of Certain Services, Contracts, Receivables and Payables
	 	 	27	 
	Section 6.08

	 	Payment of Indebtedness
	 	 	27	 
	Section 6.09

	 	Insurance
	 	 	28	 
	Section 6.10

	 	Tax Matters
	 	 	29	 
	Section 6.11

	 	Certain Restrictions
	 	 	31	 
	Section 6.12

	 	No Solicitation
	 	 	31	 
	Section 6.13

	 	Confidentiality
	 	 	31	 
	Section 6.14

	 	Employee and Benefit Matters
	 	 	32	 
	Section 6.15

	 	Public Announcements
	 	 	36	 
	Section 6.16

	 	Expenses and Fees
	 	 	36	 
	Section 6.17

	 	Agreement to Cooperate
	 	 	36	 
	Section 6.18

	 	Directors’ and Officers’ Indemnification
	 	 	38	 
	Section 6.19

	 	Further Assurances
	 	 	38	 
	Section 6.20

	 	Non-Solicitation
	 	 	39	 
	Section 6.21

	 	Hedging and Energy Management Services
	 	 	39	 
	Section 6.22

	 	Subsequent Financials Statements
	 	 	39	 
	Section 6.23

	 	Funding Commitments
	 	 	41	 
	Section 6.24

	 	Title Defects
	 	 	41	 
	Section 6.25

	 	Work-Around
	 	 	41	 

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	ARTICLE VII 

CONDITIONS TO THE CLOSING
	 
	 	 	 	 	 	 
	Section 7.01

	 	Conditions to the Obligations of Each Party
	 	 	42	 
	Section 7.02

	 	Conditions to the Obligations of Buyer
	 	 	42	 
	Section 7.03

	 	Conditions to the Obligations of Seller
	 	 	43	 
	 
	 	 	 	 	 	 
	ARTICLE VIII 

TERMINATION
	 
	 	 	 	 	 	 
	Section 8.01

	 	Termination
	 	 	44	 
	Section 8.02

	 	Effect of Termination
	 	 	45	 
	 
	 	 	 	 	 	 
	ARTICLE IX 

INDEMNIFICATION
	 
	 	 	 	 	 	 
	Section 9.01

	 	Survival
	 	 	46	 
	Section 9.02

	 	Indemnification
	 	 	46	 
	Section 9.03

	 	Waiver of Other Representations
	 	 	49	 
	Section 9.04

	 	Waiver of Remedies; Certain Limitations
	 	 	50	 
	Section 9.05

	 	Procedures for Indemnification
	 	 	52	 
	 
	 	 	 	 	 	 
	ARTICLE X 

MISCELLANEOUS
	 
	 	 	 	 	 	 
	Section 10.01

	 	Notices
	 	 	54	 
	Section 10.02

	 	Headings
	 	 	55	 
	Section 10.03

	 	Assignment
	 	 	55	 
	Section 10.04

	 	Governing Law
	 	 	55	 
	Section 10.05

	 	Arbitration
	 	 	55	 
	Section 10.06

	 	Counterparts
	 	 	57	 
	Section 10.07

	 	Amendments; Extensions
	 	 	57	 
	Section 10.08

	 	Entire Agreement
	 	 	57	 
	Section 10.09

	 	Severability
	 	 	58	 
	Section 10.10

	 	Guarantor Guaranty
	 	 	58	 

iii

 

	 	 	 	 	 
	APPENDICES
	 	 	 	 
	 
	 	 	 	 
	Appendix I
	 	—	 	Construction; Definitions
	 
	 	 	 	 
	EXHIBITS
	 	 	 	 
	 
	 	 	 	 
	Exhibit A
	 	—	 	Forms of Assignment of Partnership Interest
	Exhibit B
	 	—	 	Form of Assignment and Assumption Agreement
	Exhibit C
	 	—	 	Form of Confidentiality Agreement Assignment

	 	 	 
	SCHEDULES
	 	 
	 
	 	 
	Schedule 2.02(b)
	 	Target Working Capital Amount
	Schedule 2.04(c)
	 	Assigned Contracts
	Schedule 3.03(b)
	 	Seller Consents
	Schedule 3.03(c)
	 	Seller Governmental Approvals
	Schedule 3.04
	 	Capitalization
	Schedule 4.02(b)
	 	Company Consents
	Schedule 4.03
	 	Capitalization
	Schedule 4.04(a)
	 	OPNY LP Financial Statements
	Schedule 4.04(b)
	 	Companies Financial Statements
	Schedule 4.04(c)
	 	June 30 Balance Sheets
	Schedule 4.05(a)
	 	Certain Company Liabilities
	Schedule 4.05(b)
	 	Certain Developments
	Schedule 4.06
	 	Litigation
	Schedule 4.07
	 	Compliance with Laws
	Schedule 4.08
	 	Material Contracts
	Schedule 4.08(c)
	 	ConEd Indemnity Claims
	Schedule 4.09
	 	Taxes
	Schedule 4.10(a)
	 	Employee Benefit Plans
	Schedule 4.10(c)
	 	Employee Benefit Matters
	Schedule 4.10(d)
	 	Company Plan Trigger Events
	Schedule 4.12
	 	Environmental Matters
	Schedule 4.13(a)
	 	Intellectual Property
	Schedule 4.16
	 	Insurance Policies
	Schedule 4.17
	 	Affiliate Transactions
	Schedule 4.18
	 	Permits
	Schedule 4.19(a)
	 	Sufficiency of Assets
	Schedule 4.19(b)
	 	Emissions Allowances
	Schedule 5.03(c)
	 	Buyer Governmental Approvals
	Schedule 6.02
	 	Certain Permitted Actions
	Schedule 6.02(a)(iii)
	 	Certain Interim Period Expenditures
	Schedule 6.02(b)(iv)
	 	Permitted Capital Expenditures
	Schedule 6.05(a)
	 	Support Obligations
	Schedule 6.06
	 	Excluded Assets
	Schedule 6.07
	 	Terminated Contracts
	Schedule 6.09
	 	Scheduled Insurance Policies

iv

 

	 	 	 
	Schedule 6.14(c)
	 	Affiliate Employees
	Schedule 6.14(i)
	 	Certain Retirees
	Schedule 7.01(c)
	 	Third Party Consents
	Schedule I-1
	 	Seller’s Knowledge Persons
	Schedule I-2
	 	Buyer’s Knowledge Persons
	Schedule I-3
	 	Spare Parts

v

 

PURCHASE AND SALE AGREEMENT

     This Purchase and Sale Agreement (this “Agreement”) dated as of September 30, 2005 (the
“Execution Date”) is made and entered into by and between Orion Power Holdings, Inc., a Delaware
corporation (“Seller”), Reliant Energy, Inc., a Delaware corporation (“Guarantor”), and Astoria
Generating Company Acquisitions, L.L.C., a Delaware limited liability company (“Buyer”).

RECITALS

     Seller desires to sell to Buyer, and Buyer desires to purchase from Seller, 100% of the equity
interests in Astoria Generating Company, L.P., a Delaware limited partnership (“Astoria LP”), and
Orion Power Operating Services Astoria, Inc., a Delaware corporation (“OPOS”), which are indirect
subsidiaries of Seller and own and operate three power plants in New York City, on the terms and
subject to the conditions set forth herein.

     Astoria LP is owned by Orion Power New York, L.P., a Delaware limited partnership (“OPNY LP”),
and Orion Power New York GP, Inc., a Delaware corporation (“OPNY GP”). OPNY LP is owned by Orion
Power New York LP, LLC, a Delaware limited liability company (“OPNY LLC”), and OPNY GP. OPNY LLC
and OPNY GP are owned by Orion Power Capital, LLC, a Delaware limited liability company (“Orion
Power Capital”). Orion Power Capital is owned by Seller.

     OPOS is owned by Orion Power Operating Services, Inc., a Delaware corporation (“OPOS Parent”).
OPOS Parent is owned by Seller.

STATEMENT OF AGREEMENT

     Now, therefore, in consideration of the premises and the mutual representations, warranties,
covenants and agreements in this Agreement, and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

ARTICLE I

DEFINITIONS AND CONSTRUCTION

     Section 1.01 Definitions and Construction. Capitalized terms used in this Agreement and rules of construction to apply to this Agreement
are set forth in Appendix I.

ARTICLE II

PURCHASE AND SALE AND CLOSING

     Section 2.01 Purchase and Sale.
On the terms and subject to the conditions set forth in this Agreement, Buyer agrees to purchase
from Seller, and Seller agrees to sell or cause to be sold to Buyer, the following equity
interests (the “Company Interests”): (i) 100% of the general and limited partnership interests in
Astoria LP, and (ii) 100% of the capital stock of OPOS (Astoria LP and OPOS, collectively, the
“Companies”).

1

 

     Section 2.02 Purchase Price.

     (a) The purchase price to be paid by Buyer to Seller for the Company Interests is $975,000,000
(the “Base Purchase Price”), as adjusted pursuant to Section 2.02(b).

     (b) If the Working Capital Adjustment Amount is negative, then the Base Purchase Price shall
be decreased by the absolute value of the Working Capital Adjustment Amount. If the Working
Capital Adjustment Amount is positive, then the Base Purchase Price shall be increased by the
Working Capital Adjustment Amount.

     (c) If the Capital Expenditures actually paid by the Companies in accordance with Section
6.02(a)(iii) during the Interim Period is less than $15,000,000, the Base Purchase Price shall be
decreased by an amount equal to 50% of such deficiency.

     Section 2.03 Closing. Subject to satisfaction or waiver of the conditions to the Closing set forth herein, unless the
Parties mutually agree otherwise in writing, the closing of the transactions contemplated by this
Agreement (the “Closing”) shall take place at the offices of Vinson & Elkins L.L.P., 1001 Fannin,
Houston, Texas 77002 at 10:00 A.M. local time, on the seventh Business Day after the conditions to
the Closing set forth in Article VII (other than actions to be taken or items to be delivered at
the Closing) have been satisfied or waived by the applicable Party or Parties if such satisfaction
or waiver occurs prior to March 1, 2006, or on the fifth Business Day after the conditions to the
Closing set forth in Article VII (other than actions to be taken or items to be delivered at the
Closing) have been satisfied or waived by the applicable Party or Parties if such satisfaction or
waiver occurs on or after March 1, 2006; provided, however, that the Closing shall not take place
prior to January 31, 2006. All actions listed in Section 2.04 or Section 2.05 that occur on the
Closing Date shall be deemed to occur simultaneously at the Closing. Subject to the provisions of
Article VIII, failure to consummate the purchase and sale provided for in this Agreement on the
date determined pursuant to this Section 2.03 will not result in the termination of this Agreement
and will not relieve any Party of any obligation under this Agreement.

     Section 2.04 Closing Deliveries by Seller to Buyer. At the Closing, Seller shall deliver, or shall cause to be delivered, to Buyer the following:

     (a) Assignments of Partnership Interests of Astoria LP in the forms attached hereto as
Exhibit A, providing for the assignment of all partnership interests of Astoria LP;

     (b) stock certificates for all shares of common stock of OPOS, with valid stock powers
executed in blank;

     (c) subject to receipt of the applicable Seller Consents, an executed counterpart of the
Assignment and Assumption Agreement substantially in the form attached as Exhibit B (the
“Assignment and Assumption Agreement”), which shall effect the assignment to Buyer or the Companies
of Contracts set forth on Schedule 2.04(c) (the “Assigned Contracts”), as applicable, and
the assumption by Buyer or the Companies of all obligations arising under such Assigned Contracts,
together with the applicable Seller Consents;

2

 

     (d) an executed counterpart of the Transition Services Agreement, in the form reasonably
satisfactory to the Parties (the “Transition Services Agreement”). The Parties agree that Seller
will provide the transition services reasonably requested by Buyer; provided that, (i) such
services shall not extend beyond six months after the Closing Date, (ii) such services shall be
provided at Seller’s cost which shall be reimbursed by Buyer, (iii) Seller shall not be required to
perform any services that it cannot perform under applicable Law, (iv) Seller shall be indemnified
by Buyer against any and all risks associated with providing such services (other than losses
attributable to Seller’s gross negligence or willful misconduct), and (v) Seller shall indemnify
Buyer against any and all losses suffered by Buyer attributable to Seller’s gross negligence or
willful misconduct;

     (e) the certificate described in Section 7.02(g);

     (f) a duly executed affidavit of non-foreign status by the Guarantor and the Seller described
in Section 1445 of the Code and the regulations thereunder;

     (g) to the extent assignable without consent of the counterparty, an executed assignment by
Guarantor, on behalf of itself and its subsidiaries, of its rights as they relate to the Companies
and their business, under each of the confidentiality agreements executed by or on behalf of the
Guarantor and/or its subsidiaries in connection with the proposed sale of the Companies, in the
form attached as Exhibit C; and

     (h) subject to obtaining approval from the applicable insurers, certificates of insurance for
the Scheduled Insurance Policies showing that Buyer and the Companies are the named insureds and
Seller is an additional insured under the Scheduled Insurance Policies, together with consents of
the applicable insurers consenting to designating Buyer and the Companies as named insureds and
Seller as an additional insured.

     Section 2.05 Closing Deliveries by Buyer. At the Closing, Buyer shall deliver the following:

     (a) to Seller, a wire transfer of immediately available funds (to such account as Seller shall
have notified Buyer of at least two Business Days prior to the Closing Date) in an amount equal to
the Estimated Purchase Price as determined in accordance with Section 2.08;

     (b) to Seller, an executed counterpart of the Assignment and Assumption Agreement;

     (c) to Seller, the certificate described in Section 7.03(c); and

     (d) to the Escrow Agent, the Escrow Amount, if any.

     Section 2.06 Post-Closing Adjustment.

     (a) As soon as practicable after the Closing, but no later than 90 days after the Closing
Date, Seller shall determine the actual adjustment to the Base Purchase Price pursuant to Section
2.02(b) and Section 2.02(c) as of the Closing Date. Seller and Buyer shall cooperate and provide
each other access to their respective books and records (and those of the Companies) as are
reasonably requested in connection with the matters addressed in this Section 2.06. Seller

3

 

shall
provide Buyer with written notice of such determinations within such 90 days, along with reasonable
supporting information (the “Seller’s Post-Closing Estimate”).

     (b) If Buyer objects to any determinations set forth in Seller’s Post-Closing Estimate, then
it shall provide Seller written notice thereof within 20 Business Days after receiving Seller’s
Post-Closing Estimate. If the Parties are unable to agree on the disputed amounts as of the
Closing Date within 150 days after the Closing Date or such longer time as may be agreed by the
Parties, the Parties shall refer such dispute to an internationally recognized accounting firm that
is not the principal accounting firm of either Buyer or Seller, mutually acceptable to Buyer and
Seller, which firm shall make a final and binding determination as to all such matters in dispute
(and only such matters) on a timely basis and promptly shall notify the Parties in writing of its
resolution. Such firm shall not have the power to modify or amend any term or provision of this
Agreement. Each Party shall bear and pay one-half of the fees and other costs charged by such
accounting firm.

     (c) If the Base Purchase Price adjusted using such actual values (as agreed or determined by
the above-referenced accounting firm) (the “Final Purchase Price”) is greater than the Estimated
Purchase Price, then Buyer shall, or shall cause one of the Companies to, pay Seller within 10
Business Days after such actual values are agreed or determined, by wire transfer of immediately
available funds, the difference between the Final Purchase Price and the Estimated Purchase Price
plus interest thereon at the Interest Rate from the Closing Date through and including the date of
such payment. If the Final Purchase Price is less than the Estimated Purchase Price, then Seller
shall pay Buyer within 10 Business Days after such actual values are agreed or determined, by wire
transfer of immediately available funds, the difference between the Estimated Purchase Price and
the Final Purchase Price plus interest thereon at the Interest Rate from the Closing Date through
and including the date of such payment. In each case, the recipient Party shall designate the
account to which such payment is to be made at least two Business Days prior to the date such
payment is due.

     Section 2.07 Allocation of Purchase Price. Buyer shall provide Seller an allocation of the Base Purchase Price (plus any assumed
liabilities that are treated as consideration for federal income tax purposes) among the assets of
Astoria LP and to the stock of OPOS, in accordance with applicable Treasury Regulations within 30
days after the Closing Date (the “Base Purchase Price Allocation”). Not later than 30 days after
the determination of the Final Purchase Price, Buyer shall notify Seller regarding the allocation
of any adjustments resulting from such determination, with such adjustments to be made in a manner
consistent with the Base Purchase Price Allocation and in accordance with
applicable Treasury Regulations (as adjusted, the “Final Purchase Price Allocation”). Seller must
inform Buyer of any objections related to the Final Purchase Price Allocation in writing within 10
days after receipt thereof. Buyer and Seller shall work in good faith to resolve any disagreements
regarding the Final Purchase Price Allocation within 30 days after receipt of Seller’s written
objections. If the Parties fail to agree within such 30-day period upon the Final Purchase Price
Allocation, such dispute shall be resolved by an independent accounting firm mutually acceptable to
Buyer and Seller, and the decision of such independent accounting firm shall be final and binding
on the Parties. The fees and expenses of such accounting firm shall be borne equally by Seller and
Buyer. Seller and Buyer shall each prepare and timely file IRS Form 8594 “Asset Acquisition
Statement Under Section 1060” and any other statements or forms prescribed under federal, state,
local or foreign

4

 

Tax Law (including any exhibits thereto) to report the Final Purchase Price
Allocation. The Parties agree that they shall not, and shall not permit their Affiliates
(including the Companies) to, take a position on any Tax Return or for any Tax purpose that is
inconsistent with the Final Purchase Price Allocation; provided, however, that neither Seller nor
Buyer shall be obligated to litigate any challenge to the Final Purchase Price Allocation by any
Governmental Authority. The Parties agree to provide each other promptly with any information
required to complete such Tax forms or statements as are required under applicable law to report
the Final Purchase Price Allocation.

     Section 2.08 Calculation of Estimated Purchase Price. Not less than 10 Business Days prior to the Closing Date, the Seller shall deliver to Buyer its
good faith calculation of the Base Purchase Price, with estimated adjustments pursuant to Section
2.02(b) and Section 2.02(c) (the “Preliminary Purchase Price”) and shall deliver to Buyer a
schedule showing its calculation of the Preliminary Purchase Price (including the estimated
adjustments to the Base Purchase Price pursuant to Section 2.02(b) and Section 2.02(c)). During
the five (5) Business Day period after delivery of Seller’s calculation of the Preliminary Purchase
Price, Seller shall provide Buyer and its Representatives with such information and access to such
personnel of the Seller Entities, the Guarantor and the Companies as Buyer may reasonably request
in order to calculate the Preliminary Purchase Price. If in good faith Buyer disagrees with
Seller’s calculation of the Preliminary Purchase Price, it shall deliver to Seller a written notice
of disagreement (a “Notice of Disagreement”) and its good faith calculation, based on the
information available to it, of the Preliminary Purchase Price. If Buyer delivers a Notice of
Disagreement on or prior to the fifth Business Day after delivery of Seller’s calculation of the
Preliminary Purchase Price, the Parties shall negotiate in good faith during the three (3) Business
Day period following delivery of the Notice of Disagreement as to the calculation of the
Preliminary Purchase Price. If the Parties agree in writing to such calculation during such three
Business Day period, the “Estimated Purchase Price” for purposes of this Agreement shall be the
Preliminary Purchase Price as agreed to by the Parties. If the Parties do not agree in writing to
such calculation prior to the expiration of such three Business Day period, the Closing shall
nonetheless occur and the “Estimated Purchase Price” for purposes of this Agreement shall be the
average of Seller’s calculation of the Preliminary Purchase Price and Buyer’s calculation of the
Preliminary Purchase Price. In the event that Buyer does not deliver a Notice of Disagreement
prior to the expiration of the five Business Day period referred to above, the “Estimated Purchase
Price” for purposes of this Agreement shall be Seller’s calculation of the Preliminary Purchase
Price. If the Estimated Purchase Price is the average of Seller’s calculation of the Preliminary
Purchase Price and Buyer’s calculation of the Preliminary Purchase Price, at
the Closing, Buyer shall deposit with an escrow agent reasonably satisfactory to Buyer and Seller
(the “Escrow Agent”) an amount equal to the difference between the Seller’s calculation and such
average (the “Escrow Amount”), and such amount shall be held and released in accordance with the
terms of the Escrow Agreement (the “Escrow Agreement”), which will be in form and substance
reasonably satisfactory to Buyer, Seller and the Escrow Agent. The Parties agree that the Escrow
Agreement shall contemplate that (a) in the event that Estimated Purchase Price exceeds the Final
Purchase Price, the parties shall cause the Escrow Amount (together with interest thereon and
without otherwise limiting the obligations of Seller under Section 2.06) to be paid to the Buyer
and (b) in the event that the Final Purchase Price exceeds the Estimated Purchase Price (the
“Excess Amount”), the parties shall cause the Escrow Amount (together with interest thereon earned
in accordance with the Escrow Agreement and in partial satisfaction of

5

 

Buyer’s obligations under
Section 2.06 to the extent that the Excess Amount exceeds the Escrow Amount (i.e., the Buyer shall
also be responsible to pay the amount by which the Excess Amount exceeds the Escrow Amount)) to be
paid to Seller; provided that in the case of clause (b), in the event that the Escrow
Amount exceeds the Excess Amount, a portion of the Escrow Amount (together with interest on such
portion earned in accordance with the Escrow Agreement) equal to the Excess Amount shall be paid to
Seller in full satisfaction of Buyer’s obligations under Section 2.06 and the remaining portion of
the Escrow Amount (together with interest thereon earned in accordance with the Escrow Agreement)
shall be paid to Buyer. Nothing in this Section 2.08 shall be deemed to prevent application of
Section 2.06 with respect to the post-Closing adjustment.

ARTICLE III

REPRESENTATIONS AND WARRANTIES REGARDING THE SELLER ENTITIES

     In order to induce Buyer to enter into this Agreement and consummate the transactions
contemplated hereby, Seller hereby represents and warrants to Buyer as of each of the Execution
Date and the Closing Date that, except as set forth in Seller’s Disclosure Schedule:

     Section 3.01 Organization and Qualification. Each of the Seller Entities (other than OPNY LP) is a corporation, duly formed, validly existing
and in good standing under the Laws of Delaware. OPNY LP is a limited partnership, duly formed,
validly existing and in good standing under the Laws of Delaware. Each of the Seller Entities is
duly qualified or licensed to do business in each other jurisdiction where the actions required to
be performed by it hereunder make such qualification or licensing necessary, except in those
jurisdictions where the failure to be so qualified or licensed would not, in the aggregate,
reasonably be expected to result in a material adverse effect on Seller’s ability to perform its
obligations hereunder.

     Section 3.02 Authority. Seller has all requisite corporate power and authority to execute and deliver this Agreement, to
perform its obligations hereunder and to consummate the transactions contemplated hereby. The
execution and delivery by Seller of this Agreement, and the performance by Seller of its
obligations hereunder, have been duly and validly authorized by all necessary corporate action.
This Agreement has been duly and validly executed and delivered by Seller and constitutes the
legal, valid and binding obligation of Seller enforceable against Seller in accordance with its
terms, except as the same may be limited by bankruptcy, insolvency, reorganization, arrangement,
moratorium or other similar Laws relating to or affecting the rights of creditors generally, or by
general equitable principles.

     Section 3.03 No Conflicts; Consents and Approvals. The execution and delivery by Seller of this Agreement do not, and the performance by Seller of
its obligations under this Agreement will not:

     (a) conflict with or result in a violation or breach of any of the terms, conditions or
provisions of the Charter Documents of any of the Seller Entities;

     (b) assuming all consents set forth on Schedule 3.03(b) (collectively, the “Seller
Consents”) have been obtained, violate or result in a default (or give rise to any right of
termination, cancellation or acceleration) under any material Contract to which any Seller Entity

6

 

is a party, except for any such violations or defaults (or rights of termination, cancellation or
acceleration) which, individually or in the aggregate, would not reasonably be expected to result
in a material adverse effect on Seller’s ability to perform its obligations hereunder; and

     (c) assuming all required filings, approvals, consents, authorizations and notices set forth
on Schedule 3.03(c) (collectively, the “Seller Governmental Approvals”) have been made,
obtained or given, (i) conflict with, violate or breach any material term or provision of any Law
or writ, judgment, order or decree applicable to the Seller Entities or (ii) require the material
consent or approval of any Governmental Authority under any applicable Law.

     Section 3.04 Capitalization. Seller indirectly owns 100% of the Company Interests. The capitalization and ownership of
Astoria LP and OPOS are set forth on Schedule 3.04. Except as set forth on Schedule
3.04, each owner of the Company Interests as indicated on Schedule 3.04 owns such
Company Interests directly and free and clear of all Liens, restrictions on transfer or other
encumbrances other than those arising pursuant to this Agreement or applicable securities laws and,
in the case of Astoria LP, its limited partnership agreement (all of which restrictions, in the
case of the limited partnership agreement of Astoria LP, have been irrevocably satisfied or waived
on or prior to the Execution Date to the extent such restrictions restrict the transactions
contemplated by this Agreement). Without limiting the generality of the foregoing, none of the
Company Interests are subject to any voting trust, shareholder agreement, voting agreement or
similar agreement.

     Section 3.05 Legal Proceedings. None of the Seller Entities has been served with written notice of any Claim, and to Seller’s
Knowledge none is threatened against any of the Seller Entities, which seeks a writ, judgment,
order or decree restraining, enjoining or otherwise prohibiting or making illegal any of the
transactions contemplated by this Agreement.

     Section 3.06 Brokers. None of the Seller Entities has any liability or obligation to pay fees or commissions to any
broker, finder or agent with respect to the transactions contemplated by this Agreement for which
Buyer or the Companies could become liable or obligated.

ARTICLE IV

REPRESENTATIONS AND WARRANTIES REGARDING THE COMPANIES

     In order to induce Buyer to enter into this Agreement and consummate the transactions
contemplated hereby, Seller hereby represents and warrants to Buyer as of each of the Execution
Date and the Closing Date that, except as set forth in Seller’s Disclosure Schedule:

     Section 4.01 Organization and Qualification. Astoria LP is a limited partnership duly formed and validly existing under the laws of the State
of Delaware, and OPOS is a corporation duly organized and validly existing under the laws of the
State of Delaware. Each Company has the requisite partnership, corporate or company power and
authority to own, lease and operate its assets and properties and to carry on its business as it is
now being conducted or as contemplated herein. Each Company is qualified to transact business and,
where applicable, is in good standing in each jurisdiction in which the Real Property or the nature
of the business conducted by it makes such qualification necessary, except as would not, in the
aggregate,

7

 

reasonably be expected to have a Material Adverse Effect. True, accurate and complete
copies of each Company’s Charter Documents, in each case as amended and in effect on the Execution
Date, have previously been delivered or made available to Buyer.

     Section 4.02 No Conflicts; Consents and Approvals. The execution and delivery by Seller of this Agreement do not, and the performance by Seller of
its obligations under this Agreement and the consummation of the transactions contemplated hereby
will not:

     (a) conflict with or result in a violation or breach of any of the terms, conditions or
provisions of the Charter Documents of either Company;

     (b) assuming the consents set forth on Schedule 4.02(b) (the “Company Consents”) have
been obtained, be in violation of or result in a default (or give rise to any notice requirement or
right of termination, cancellation or acceleration) under any Material Contract; and

     (c) assuming all the Seller Governmental Approvals have been made, obtained or given, (i)
conflict with or result in a violation or breach of any material term or provision of any Law or
writ, judgment, order or decree applicable to either Company or any of their Purchased Assets or
(ii) require the material consent or approval of any Governmental Authority under any applicable
Law.

     Section 4.03 Capitalization; Subsidiaries. Except as disclosed on Schedule 4.03, neither Company is a party to any written or oral
agreement, and neither Company has granted or issued, or agreed to grant or issue, to any Person
any option or any right or privilege capable of becoming an agreement or option, for the purchase,
subscription, allotment or issue of any unissued interests, units or other securities (including
convertible securities, warrants or convertible obligations of any nature) of either Company.
Neither of the Companies has subsidiaries or owns equity interests in any Person.

     Section 4.04 Financial Statements.

     (a) Attached as Schedule 4.04(a) are true, correct and complete copies of the
following: the audited consolidated balance sheets at December 31, 2003 of OPNY LP and its
subsidiaries, the unaudited consolidated balance sheet at December 31, 2004 of OPNY LP and its
subsidiaries, the audited consolidated statements of operations, partners’ capital and
comprehensive income (loss) and cash flows for OPNY LP and its subsidiaries for the year ending
December 31, 2003, and the unaudited consolidated statements of operations and comprehensive income
(loss) for OPNY LP and its subsidiaries for the year ending December 31, 2004 and the related notes
and supplemental information. All such financial statements set forth on Schedule 4.04(a)
for the year ending December 31, 2003 fairly present, in all material respects and in accordance
with GAAP, the consolidated financial position, the results of operations and cash flows, as the
case may be, of OPNY LP and its subsidiaries, at the dates and for the periods indicated. All such
financial statements set forth on Schedule 4.04(a) for the year ending December 31, 2004
fairly present, in all material respects and in accordance with GAAP, the consolidated financial
position, the results of operations and cash flows, as the case may be, of OPNY LP and its
subsidiaries, at the dates and for the periods indicated, except for the allocation of
corporate
support and general and administrative expenses and the allocation of

8

 

goodwill and its related
accounting in accordance with SFAS No. 142, “Goodwill and Other Intangible Assets,” and except for
the absence of footnote disclosure.

     (b) Attached as Schedule 4.04(b) are true, correct and complete copies of the
following: the unaudited consolidated balance sheet of the Companies at December 31, 2004,
December 31, 2003 and December 31, 2002, the unaudited consolidated statements of operations and
comprehensive income (loss) for the Companies for the years ending December 31, 2004, December 31,
2003 and December 31, 2002. All such financial statements set forth on Schedule 4.04(b)
fairly present, in all material respects and in accordance with GAAP, the consolidated financial
position and the results of operations, as the case may be, of the Companies, at the dates and for
the periods indicated, except for the allocation of corporate support and general and
administrative expenses and the allocation of goodwill and its related accounting in accordance
with SFAS No. 142, “Goodwill and Other Intangible Assets,” and except for the absence of footnote
disclosure.

     (c) Attached as Schedule 4.04(c) are copies of the following for the Companies: the
unaudited balance sheet at June 30, 2005 (collectively, the “June 30 Balance Sheets”), the
unaudited balance sheet at June 30, 2004 and the unaudited statements of operations for the periods
January 1, 2005 through June 30, 2005 and January 1, 2004 through June 30, 2004. All such
financial statements set forth on Schedule 4.04(c) fairly present, in all material respects
and in accordance with GAAP, the financial position and the results of operations, as the case may
be, of the respective Companies, at the dates and for the periods indicated, except for the
allocation of corporate support and general and administrative expenses and the allocation of
goodwill and its related accounting in accordance with SFAS No. 142, “Goodwill and Other Intangible
Assets,” and except for the absence of footnote disclosure.

     Section 4.05 Absence of Undisclosed Liabilities; Certain Developments.

     (a) Except as recorded in the June 30 Balance Sheets or as disclosed in Schedule
4.05(a), except for liabilities incurred in the ordinary course of business since June 30, 2005
that have been paid, will be paid prior to the Closing Date or otherwise included in the
computation of Closing Date Working Capital Amount and except as will be repaid or extinguished on
or prior to the Closing Date pursuant to Section 6.08, the Companies do not have liabilities that
would be required to be recorded on a balance sheet (or footnotes thereto) of the Companies
prepared in accordance with GAAP, other than post-Closing performance obligations under the
Material Contracts and liabilities incurred after the date of this Agreement with the consent of
Buyer.

     (b) Since June 30, 2005, except as disclosed in Schedule 4.05(b), there has not
occurred (i) any circumstance, development or event or series of such occurrences that, in the
aggregate, has had or would reasonably be expected to have a Material Adverse Effect; (ii) any loss
or interference with the operation of the Facilities from fire, explosion, flood or other calamity,
whether or not covered by insurance, or from any labor dispute or action, order or decree of any
Governmental Authority that, in the aggregate, has had or would reasonably be expected to have a
Material Adverse Effect; or (iii) any material change by either Company in financial accounting
principles, practices or methods, except as required by GAAP or by a Change of Law.

9

 

     Section 4.06 Litigation. Except as disclosed on Schedule 4.06, there is no material litigation, arbitration or
other dispute resolution pending, or, to Seller’s Knowledge, threatened, against either Company or
the Purchased Assets before (or in the case of threatened material litigation that could come
before) any Governmental Authority or any arbitrator, except for matters of general applicability
relating to the electric industry generally, or specifically to participants in New York City
electric markets, pending before FERC. Except as disclosed on Schedule 4.06, neither
Company nor any of the Purchased Assets is subject to any judgment, decree or injunction of any
Governmental Authority or any arbitrator that prohibits the consummation of the transactions
contemplated by this Agreement or that is otherwise binding on the Companies, their business or
Facilities from and after the Closing, other than matters of general applicability or judgments,
decrees or injunctions of Governmental Authorities which would not reasonably be expected to have,
a Material Adverse Effect. Except as disclosed on Schedule 4.06, neither Company nor any
of the Purchased Assets is subject to any rule or order of any Governmental Authority or any
arbitrator that prohibits the consummation of the transactions contemplated by this Agreement.

     Section 4.07 Compliance with Laws. Except as disclosed on Schedule 4.07, each Company and the Owned Real Property are and,
since February 19, 2002, have at all times been in compliance with applicable Law and no
Non-Company Affiliate nor either of the Companies has been given written notice of any violation of
any Law, except for non-compliance or violations that would not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect. Except as disclosed on Schedule
4.07, to Seller’s Knowledge, no investigation or review relating to either Company or the Owned
Real Property by any Governmental Authority is pending or threatened.

     Section 4.08 Contracts.

     (a) Excluding the Terminated Contracts and any Benefit Plans, Schedule 4.08 sets forth
a list as of the date of this Agreement of the following Contracts to which either Company is a
party, by which the Purchased Assets may be bound (collectively, the “Material Contracts”):

     (i) Contracts for the future purchase, exchange or sale of electric power or ancillary
services or fuel;

     (ii) Contracts for the future transmission of electric power or fuel or for the storage
of fuel;

     (iii) interconnection and/or facilities joint use Contracts;

     (iv) other than Contracts of the nature addressed by Section 4.08(a)(i) — (ii),
Contracts (A) for the sale of any asset of a Company or (B) that grant a right or option to
purchase any asset of a Company, other than in each case Contracts entered into in the
ordinary course of business consistent with past practices relating to assets with a value
of less than $500,000 individually or $2,000,000 in the aggregate;

     (v) other than Contracts of the nature addressed by Section 4.08(a)(i) — (ii),
Contracts for the future provision of goods or services requiring payments in excess of
$1,000,000 for each individual Contract;

10

 

     (vi) Contracts under which a Company has created, incurred, assumed or guaranteed any
outstanding indebtedness for borrowed money, any capitalized lease obligation or any other
Indebtedness, or under which such Company has imposed a security interest or Company Lien on
any of its assets, tangible or intangible;

     (vii) outstanding agreements of guaranty, surety or indemnification, direct or
indirect, by a Company, or by Seller or any Non-Company Affiliate for the benefit of a
Company;

     (viii) Contracts with Seller or any Non-Company Affiliate relating to the future
provision of goods or services;

     (ix) employment and consulting Contracts providing annual compensation in excess of
$150,000 or providing severance benefits in excess of $150,000;

     (x) any collective bargaining agreement;

     (xi) any settlement, conciliation or similar Contract, the performance of which will
involve payment after the execution of this Agreement of consideration in excess of
$1,000,000;

     (xii) any Contract under which a Company has advanced or loaned any amount to any of
its directors, officers, and employees outside the ordinary course of business;

     (xiii) outstanding futures, swap, collar, put, call, floor, cap, option or other
Contracts that are intended to benefit from or reduce or eliminate the risk of fluctuations
in the price of commodities, including electric power, fuel or securities;

     (xiv) Contracts that purport to limit a Company’s freedom to compete in any line of
business or in any geographic area;

     (xv) partnership, joint venture or limited liability company agreements;

     (xvi) Contracts conveying, granting, leasing or assigning an interest in real property
to a Company (including the Leases);

     (xvii) Contracts with Consolidated Edison for the purchase or sale of the Companies or
any business, division, or operation of the Companies or any of Facilities or Real Property
pursuant to which indemnification rights remain in favor of or against the Companies or any
Non-Company Affiliates;

     (xviii) Contracts which require payment or increased obligations by or on behalf of the
Companies or to any employees of the Companies as a result of the transactions contemplated
by this Agreement; and

     (xix) Contracts for leases of personal property involving annual payments in excess of
$1,000,000.

11

 

     (b) Seller has provided Buyer with, or access to, true and complete copies of all Material
Contracts and all Assigned Contracts.

     (c) Neither Company, and, to Seller’s Knowledge, no counterparty, is in default in the
performance or observance of any term or provision of, and no event has occurred which, with lapse
of time or action by a third party, would result in such a default under any Contract to which
either Company is a party or by which either of them is bound or to which any of the Purchased
Assets is subject, other than as would not, individually or in the aggregate, reasonably be
expected to have a Material Adverse Effect. To Seller’s Knowledge, all Assigned Contracts and all
other Material Contracts (and Contracts entered into after the Execution Date that would be
Material Contracts if entered into prior to the Execution Date) are in full force and effect.
Except as set forth on Schedule 4.08(c), to Seller’s Knowledge, no claims for indemnification are
pending by or against the Companies or any Non-Company Affiliate under the ConEd Agreement.

     Section 4.09 Taxes. Except as set forth on Schedule 4.09:

     (a) The Companies have duly filed with the appropriate Taxing Authorities all Tax Returns
required to be filed by them, and such Tax Returns are accurate and complete in all material
respects; provided, however, that nothing in this representation shall be construed as a
representation or warranty by the Seller as to the Tax basis of the assets of the Companies or the
amount or availability of any net operating losses, capital losses, Tax credits or other Tax
attributes of the Companies. The Companies have duly paid in full any and all Taxes that are due
and payable (whether or not such Taxes are shown on or required to be shown on a Tax Return).

     (b) There are no liens for Taxes upon any property or asset of either Company, except for
liens for Taxes not yet due.

     (c) There are not pending or, to Seller’s Knowledge, threatened in writing any Tax audits or
examinations of the Companies and no written notices of deficiency, proposed deficiency or
assessment from any Taxing Authority with respect to Taxes of either Company have been received by
the Companies or any Non-Company Affiliate. All material deficiencies asserted or assessments made
for Taxes due by the Companies with respect to any completed and settled examinations or any
concluded litigation have been fully paid.

     (d) There are no outstanding agreements extending or waiving the statutory period of
limitations applicable to any claim for, or the period for the collection or assessment or
reassessment of, Taxes due from the Companies for any taxable period and no request for any such
waiver or extension is currently pending.

     (e) Neither Company is a party to any agreement relating to the sharing, allocation or
indemnification of Taxes, or any similar agreement, contract or arrangement, (collectively, “Tax
Sharing Agreements”) or has any liability for Taxes of any Person (other than members of the Seller
Group) under Treasury Regulation § 1.1502-6, Treasury Regulation § 1.1502-78 or similar provision
of state, local or foreign Law, as a transferee or successor, by contract, or otherwise.

12

 

     (f) The Companies have each withheld and paid all Taxes required to have been withheld and
paid in connection with any amounts paid or owing to any employee, independent contractor,
creditor, stockholder, or other third party, except for any failure to withhold and make such
payments which would not, in the aggregate, reasonably be expected to have a Material Adverse
Effect.

     (g) OPOS has not constituted a “distributing corporation” or a “controlled corporation”
(within the meaning of Section 355(a)(1)(A) of the Code) in a distribution of shares purported or
intended to be governed by Section 355 or Section 361 of the Code.

     (h) Astoria LP has been treated as a partnership for federal, state, and local income tax
purposes since its formation.

     (i) Astoria LP has no outstanding liability for and is not subject to payment of the New York
City Utility Tax, has received no demand, notice or claim from any Governmental Authority for
payment of such Tax, and has received no notification or assertion by any Governmental Authority
that it is or may be liable for the payment of such Tax.

     Section 4.10 Employee Benefit Plans; ERISA.

     (a) Schedule 4.10(a) sets forth a true, correct and complete list, as of the Execution
Date, of (i) the Company Plans and (ii) all Seller Plans sponsored, maintained or contributed to by
a Company, and such list identifies each such plan as either a Company Plan or Seller Plan. On or
before the Execution Date, Seller has made available to Buyer true and complete copies of each of
the following with respect to the Company Plans, to the extent applicable: the most recent annual
report (Form 5500) filed with the Employee Benefits Security Administration, the plan document
(including any amendments thereto), the trust agreement, the most recent summary plan description
if required by ERISA, the most recent actuarial report or valuation that is required to be prepared
under applicable Laws, and the most recent determination letter or opinion letter issued by the IRS
with respect to any Company Plan intended to be qualified under Section 401(a) of the Code.
Neither Company contributes to, or has an obligation to contribute to, or has any liability or
potential liability with respect to a multiemployer plan (within the meaning of Section 3(37) of
ERISA). No Company Plan is a multiple employer plan within the meaning of Section 413(c) of the
Code or a multiple employer welfare arrangement as defined in Section 3(40) of ERISA. On or before
the Execution Date, Seller has also made available to Buyer copies of the Severance Plan.

     (b) With respect to any Seller Plan that is an “employee benefit plan,” within the meaning of
Section 3(3) of ERISA, (i) no withdrawal liability, within the meaning of Section 4201 of ERISA,
has been incurred by Seller or by any trade or business, whether or not incorporated, that together
with Seller would be a “single employer” within the meaning of Section 4001(b) of ERISA (a
“Commonly Controlled Entity”), which withdrawal liability has not been satisfied in full, (ii) no
liability to the Pension Benefit Guaranty Corporation (the “PBGC”) has been incurred by Seller or
by any Commonly Controlled Entity, which liability has not been satisfied (other than with respect
to the payment of premiums that are not past due), (iii) no accumulated funding deficiency, whether
or not waived, within the meaning of Section 302 of ERISA or Section 412 of the Code currently
exists, and (iv) all contributions (including

13

 

installments) to such plan required of Seller or any
Commonly Controlled Entity prior to the Execution Date by Section 302 of ERISA and Section 412 of
the Code have been made.

     (c) Except as otherwise set forth in Schedule 4.10(c):

     (i) With respect to each Company Plan, the Companies and their Affiliates have
substantially performed all material obligations, whether arising by operation of Law or by
Contract, required to be performed by them, and no event has occurred and, to the Knowledge
of Seller, there exists no condition or set of circumstances in connection with which the
Companies could be subject to any material liability for failure to operate and administer
such Company Plan in accordance with its
terms, the terms of any applicable collective bargaining agreement or any applicable
Laws;

     (ii) Each Company Plan intended to be qualified under Section 401(a) of the Code (A)
substantially satisfies in form the requirements of such Section except to the extent
amendments are not required by applicable Laws to be made until a date after the Closing
Date, (B) has received a favorable determination letter from the IRS regarding such
qualified status and has been submitted to the IRS for a determination or opinion letter
that takes the GUST amendments into account within the applicable remedial amendment period
specified by Section 401(b) of the Code, and (C) has not been operated in a way that would
materially adversely affect its qualified status;

     (iii) As to any Company Plan subject to Title IV of ERISA or Section 412 of the Code,
there has been no event or condition which presents the material risk of termination of the
Company Plan, no accumulated funding deficiency, whether or not waived, within the meaning
of Section 302 of ERISA or Section 412 of the Code currently exists, no reportable event
within the meaning of Section 4043 of ERISA has occurred, no notice of intent to terminate
the Company Plan has been given under Section 4041 of ERISA, no proceeding has been
instituted under Section 4042 of ERISA to terminate the Company Plan, and no material
liability to the PBGC has been incurred (other than with respect to the payment of premiums
that are not past due);

     (iv) There are no material actions, suits, or claims pending (other than routine claims
for benefits) with respect to any Company Plan or its assets, and, to the Knowledge of
Seller, there is no matter pending (other than routine qualification determination filings)
with respect to any Company Plan before any Governmental Authority;

     (v) There have been no material non-exempt “prohibited transactions” (as defined in
Section 406 of ERISA or Section 4975 of the Code) with respect to each Company Plan, and no
“fiduciary” (as defined in Section 3(21) of ERISA) has any material liability for breach of
fiduciary duty or any other failure to act or comply in connection with the administration
or investment of the assets of any Company Plan;

     (vi) With respect to each Company Plan, (A) all material contributions (including all
material employer contributions and employee salary reduction

14

 

contributions) that are due
have been made within the time periods prescribed by ERISA and the Code, and all
contributions for any period ending on or before the Closing Date that are not yet due have
been (or will be) made or properly accrued and (B) as of June 30, 2005, there are no
material unfunded liabilities that are not accurately reflected on the June 30 Balance
Sheets; and

     (vii) No Company Plan provides health, life insurance or other welfare benefits to
retirees or other terminated employees of the Company other than as required by COBRA.

     (d) Except as set forth on Schedule 4.10(d), the execution and performance of the
transactions contemplated by this Agreement will not (either alone or upon the occurrence of any
additional subsequent event) constitute an event under any Company Plan that will or may result in
any payments of money or other property, acceleration of benefits or payments, forgiveness of
indebtedness, vesting, distribution, increase in benefits or obligation to fund benefits with
respect to any employee or former employee of the Company or under any Company Plan.

     Section 4.11 Labor and Employment.

     (a) Except for the Collective Bargaining Contract, neither Company is a party to, or is bound
by, the terms of any collective bargaining agreement or any other Contract with any labor union or
representative of employees. Seller has provided Buyer with, or access to, a true and complete
copy of the Collective Bargaining Contract. To Seller’s Knowledge, there are no organizational or
decertification efforts underway or threatened involving any of the employees of either Company.

     (b) Except as disclosed on Schedule 4.06, with respect to either Company, since
February 19, 2002: (i) there has not been any filed representation petition or written demand for
recognition by any labor organization or group of employees; (ii) no labor strike, work stoppage,
slowdown, or other material labor dispute has occurred or is underway or, to Seller’s Knowledge,
threatened; (iii) there has not been, and there is not currently pending, any material union
grievance, and (iv) there is no workers’ compensation liability, experience or matter that,
individually or in the aggregate, would reasonably be expected to have a Material Adverse Effect.

     (c) With respect to this transaction, any notice required under any law or collective
bargaining agreement has been given, and all bargaining obligations with any employee
representative have been, or prior to the Closing will be, satisfied. Within the past three years,
neither Company has implemented any plant closing or layoff of employees that could implicate the
Worker Adjustment and Retraining Notification Act of 1988, as amended, or any similar foreign,
state or local law, regulation or ordinance (jointly, the “WARN Act”), and no such action will be
implemented without advance notification to Buyer.

     Section 4.12 Environmental Matters. Except as disclosed on Schedule 4.12: (a) except as would not reasonably be expected to
have a Material Adverse Effect, each Company and Facility is, and since February 19, 2002, at all
times has been in compliance with all applicable Environmental Laws, which compliance includes
obtaining and complying with all

15

 

Permits required under Environmental Laws for the ownership and
operation of the Facilities as they are currently being operated, (b) neither Company has received
any written notice, demand or request for information from any Governmental Authority or other
Person indicating that it or any of the Facilities currently is, or may be, in violation of any
Environmental Law, (c) except as would not reasonably be expected to have a Material Adverse
Effect, there are no civil, criminal or administrative actions, suits, demands, claims, hearings,
investigations or proceedings pending or, to Seller’s Knowledge,
threatened against either Company relating to any violation, or alleged violation, of, or liability
under, any Environmental Law, (d) to Seller’s Knowledge, neither Company has disposed of, released
or transported, or arranged for the disposal, release, or transportation of, any Hazardous
Substance in violation of any applicable Environmental Law, or so as to give rise to any liability
under Environmental Law and none of the Facilities is contaminated with any Hazardous Substance so
as to give rise to any material liabilities under any Environmental Law, (e) neither Company is
subject to any liabilities or expenditures (fixed or contingent) relating to any suit, settlement,
court order, administrative order, regulatory requirement, judgment or claim asserted or arising
under any Environmental Law, (f) except as would not reasonably be expected to have a Material
Adverse Effect, neither Company has assumed in writing or undertaken by operation of law any
liability of any other Person relating to Environmental Law, and (g) Seller has provided to Buyer
copies of all material environmental reports, audits and assessments prepared since February 19,
2002, and any other material environmental documents (in each instance, relevant to the Companies
or the Facilities), to the extent the forgoing are in the possession, custody, or reasonable
control of the Seller or the Companies. Notwithstanding any other provision of this Agreement to
the contrary, this section contains the sole and exclusive representations and warranties of Seller
with regard to environmental matters.

     Section 4.13 Intellectual Property. Except as would not reasonably be expected to have a Material Adverse Effect, (a) except for the
Seller Marks and except as set forth on Schedule 4.13(a), each Company owns, or otherwise
has the right to use, all patents, patent rights (including patent applications and licenses),
know-how, trade secrets, trademarks (including trademark applications), trademark rights, trade
names, trade name rights, service marks, service mark rights, copyrights and other proprietary
intellectual property rights (collectively, “Intellectual Property”) used in the conduct of such
Company’s business as it is currently conducted, (b) except as set forth on Schedule
4.13(a) and as otherwise set forth in this Agreement, the Company’s ownership of, or rights to
use, the Intellectual Property used in the conduct of such Company’s business as it is currently
conducted shall not expire as a result of the transactions contemplated by this Agreement, (c) the
use of Intellectual Property by each Company does not infringe on or otherwise violate the rights
of any third party, and is in accordance with the applicable license pursuant to which such Company
acquired the right to use such Intellectual Property, (d) to Seller’s Knowledge, no third party is
challenging, infringing on or otherwise violating any right of either Company with respect to such
Company’s Intellectual Property, and (e) neither Company has granted or been granted, or is
obligated to grant, any license, sub-license, or assignment of any Intellectual Property.

     Section 4.14 PUHCA; Regulation as Utility.

     (a) Neither Company is (i) subject to regulation as a “public-utility company,” a “holding
company,” or a “subsidiary company” or “affiliate” of a “public-utility company,” or a

16

 

“holding
company” within the meaning of the Public Utility Holding Company Act of 1935, as amended, or (ii)
currently regulated pursuant to any state law or regulation with respect to the rates charged for
sales of electricity, but Astoria LP is subject to state law or regulation with respect to the
financial and organizational regulation of electric utilities. OPOS is not subject to
regulation as a “public utility” within the meaning of the FPA. Astoria LP is subject to
regulation as a “public utility” within the meaning of the FPA, but is not subject to
cost-of-service regulation with regard to its rates for sales of wholesale power.

     (b) Astoria LP meets the requirements for, and has been determined by FERC to be, an “Exempt
Wholesale Generator” within the meaning of the Public Utility Holding Company Act of 1935, as
amended.

     (c) Astoria LP has on file with FERC effective rate schedules in compliance with the FPA.
Such rate schedules are in full force and effect.

     Section 4.15 Real Property. Seller has delivered or otherwise made available to Buyer true, correct and complete copies of
the Title Commitments and all existing title policies, title reports and surveys for the Facilities
in the possession of the Companies.

     Section 4.16 Insurance. Schedule 4.16 identifies each of the insurance policies carried by Seller or any of its
Affiliates which cover risks associated with or arising out of the business, property or assets of
the Companies (including general liability policies and property and casualty policies) during the
last five (5) years (the “Insurance Policies”). Seller and its Affiliates have paid all premiums
or other amounts due and owing to the insurers in respect of the Insurance Policies and is not
otherwise in default under any such Insurance Policy.

     Section 4.17 Affiliate Transactions. Schedule 4.17 sets forth (a) each Contract between either or both of the Companies, on
the one hand, and any Non-Company Affiliate, on the other hand, (b) each Contract with a
third-party to which a Non-Company Affiliate is party that is material to the business of the
Companies, and (c) the material services provided to either of the Companies by one or more
Non-Company Affiliates.

     Section 4.18 Permits. Schedule 4.18 sets forth a complete and accurate list of all material Permits held by
the Companies and the Facilities. All such Permits are held by one of the Companies and, to
Seller’s Knowledge, are in full force and effect, and except as shown on Schedule 4.07,
neither the Seller nor of its Affiliates (including, without limitation, the Companies) has
received any notice of violation or proposed revocation or termination relating to any such Permit
from any Governmental Authority. Except as disclosed on Schedule 4.07, neither Company,
nor any of the Facilities, is in violation of the terms of any covenants, conditions, restrictions
or easements or of any Permits, except for violations which, individually or in the aggregate,
would not reasonably be expected to have a Material Adverse Effect.

     Section 4.19 Sufficiency of Assets. Except as disclosed on Schedule 4.19(a), except for the services to be provided to Buyer
and the Companies under the Transition Services Agreement and except for assets consumed in the
ordinary course of business, the assets available for use by the Companies immediately after
Closing will include all of the assets (whether tangible or intangible) used by the Companies to
conduct the business of the

17

 

Companies as conducted as of each of June 30, 2005 and the date hereof,
except as would not reasonably be expected to have a Material Adverse Effect. Except as would not
reasonably be expected to have a Material Adverse Effect, the Companies have good title to, or
valid license or right to use, free and clear of all Liens (other than Liens that will be
discharged prior to Closing), all of the tangible personal property described in the preceding
sentence. As of the Closing, the Companies shall have available the air emission allowances
identified in Schedule 4.19(b) without payment, transfer, reissuance, or consent of any
third party or Governmental Agency.

ARTICLE V

REPRESENTATIONS AND WARRANTIES OF BUYER

     In order to induce Seller to enter into this Agreement and consummate the transactions
contemplated hereby, Buyer hereby represents and warrants to Seller that:

     Section 5.01 Organization and Qualification. Buyer is a limited liability company duly formed, validly existing and in good standing under
the Laws of the State of Delaware. Buyer is duly qualified or licensed to do business in each
other jurisdiction where the actions required to be performed by it hereunder make such
qualification or licensing necessary, except in those jurisdictions where the failure to be so
qualified or licensed would not reasonably be expected to result in a material adverse effect on
Buyer’s ability to perform its obligations hereunder.

     Section 5.02 Authority. Buyer has all requisite limited liability company power and authority to enter into this
Agreement, to perform its obligations hereunder and to consummate the transactions contemplated
hereby. The execution and delivery by Buyer of this Agreement and the performance by Buyer of its
obligations hereunder have been duly and validly authorized by all necessary limited liability
company action on behalf of Buyer. This Agreement has been duly and validly executed and delivered
by Buyer and constitutes the legal, valid and binding obligation of Buyer enforceable against Buyer
in accordance with its terms except as the same may be limited by bankruptcy, insolvency,
reorganization, arrangement, moratorium or other similar Laws relating to or affecting the rights
of creditors generally or by general equitable principles.

     Section 5.03 No Conflicts; Consents and Approvals. The execution and delivery by Buyer of this Agreement, the performance by Buyer of its
obligations hereunder and the consummation of the transactions contemplated hereby will not:

     (a) conflict with or result in a violation or breach of any of the terms, conditions or
provisions of its Charter Documents;

     (b) be in violation of or result in a default (or give rise to any right of termination,
cancellation or acceleration) under any material Contract to which Buyer is a party or by which any
of its assets may be bound except for any such violations or defaults (or rights of termination,
cancellation or acceleration) which would not, in the aggregate, reasonably be expected to result
in a material adverse effect on Buyer’s ability to perform its obligations hereunder; or

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     (c) assuming all required filings, approvals, consents, authorizations and notices set forth
in Schedule 5.03(c) (collectively, the “Buyer Governmental Approvals”) have been made,
obtained or given, (i) conflict with or result in a violation or breach of any material term or
provision of any Law or writ, judgment, order or decree applicable to Buyer or any of its assets or
(ii) require the material consent or approval of any Governmental Authority under any applicable
Law.

     Section 5.04 Legal Proceedings. Buyer has not been served with written notice of any Claim, and to Buyer’s Knowledge, none is
threatened, against Buyer which seeks a writ, judgment, order or decree restraining, enjoining or
otherwise prohibiting or making illegal any of the transactions contemplated by this Agreement.

     Section 5.05 Compliance with Laws and Orders. Buyer is not in violation of or in default under any Law or order applicable to Buyer or its
assets the effect of which, in the aggregate, would reasonably be expected to result in a material
adverse effect on Buyer’s ability to perform its obligations hereunder.

     Section 5.06 Brokers. Buyer does not have any liability or obligation to pay fees or commissions to any broker, finder
or agent with respect to the transactions contemplated by this Agreement for which Seller could
become liable or obligated.

     Section 5.07 Acquisition as Investment. Buyer is acquiring the Company Interests for its own account as an investment without the
present intent to sell, transfer or otherwise distribute the same to any other Person. Buyer
acknowledges that the Company Interests are not registered pursuant to the Securities Act of 1933
(the “1933 Act”) and that none of the Company Interests may be transferred, except pursuant to an
applicable exception under the 1933 Act. Buyer is an “accredited investor” as defined under Rule
501 promulgated under the 1933 Act.

     Section 5.08 Financial Resources. Buyer has delivered true, correct and complete copies of (a) the commitment letter received by
Buyer and its affiliates and executed by all parties thereto (the “Debt Commitment Letter”) to
provide the debt financing for the transactions contemplated hereby and (b) a true, correct and
complete copy of the commitment letter received by Buyer and its affiliates and executed by all
parties thereto (the “Equity Commitment Letter” and, together with the Debt Commitment Letter, the
“Commitment Letters”) to provide equity financing for the transactions contemplated hereby.
Assuming receipt of all of the financing contemplated by the Commitment Letters, at Closing, Buyer
shall have sufficient funds to satisfy its obligations required to be performed at Closing.

     Section 5.09 No Knowledge of Seller’s Breach. Except for breaches of which Buyer informs Seller in accordance with Section 9.04(e) and except
for breaches of which Buyer is informed by Seller in accordance with Section 6.02(a)(ii), Buyer
does not have Knowledge of any breach by Seller of any of the representations and warranties
herein.

     Section 5.10 Opportunity for Independent Investigation. Prior to its execution of this Agreement, Buyer has conducted to its satisfaction an independent
investigation and verification of the current condition and affairs of the Companies, the Purchased
Assets and the Facilities without reliance on Seller; provided that such independent investigation
and

19

 

verification shall not affect the express representations, warranties, covenants or other
obligations of Seller contained in this Agreement. Buyer has had reasonable and sufficient access
to documents, other information and materials as it considers appropriate to make its evaluations.

ARTICLE VI

COVENANTS

     In order to induce the other Party to enter into this Agreement and consummate the
transactions contemplated hereby, the Parties hereby covenant and agree as follows:

     Section 6.01 Access of Buyer.

     (a) During the Interim Period, Seller will provide Buyer and its prospective financing sources
and its and their Representatives with reasonable access during normal business hours (and other
hours as reasonably appropriate to fulfill the intent of this provision) to the Facilities and the
officers and management employees of Seller and its Affiliates (including the Companies) in such a
manner so as not to unreasonably interfere with the business or operations of Seller or its
Affiliates (including the Companies), such access to include participation by Buyer in material
management meetings and technical meetings, including those relating to major capital projects and
unit overhauls; provided, that Seller shall have the right to (i) have a Representative present for
any communication with employees or officers of Seller or its Affiliates and (ii) impose reasonable
restrictions and requirements for safety or operational purposes. Buyer shall be entitled, at its
sole cost and expense, to visit the Real Property and to receive such information as may reasonably
be required so that it may prepare and/or review financial statements after the date hereof.
Notwithstanding the foregoing, Seller shall not be required to provide any information or allow any
inspection which it reasonably believes it may not provide to Buyer or allow by reason of
applicable Law, which constitutes or allows access to
information protected by attorney/client privilege, or which Seller or its Affiliates is
required to keep confidential or prevent access to by reason of contract, agreement or
understanding with third parties if Seller has used commercially reasonable efforts to obtain the
consent of such third party to such inspection or disclosure. Following the Closing, Seller shall
be entitled to retain copies of all books and records relating to the ownership and/or operation of
the Companies or their respective businesses.

     (b) Buyer agrees to indemnify, defend and hold harmless Seller, the Companies, the Non-Company
Affiliates and their Representatives from and against any and all Losses incurred by Seller, the
Companies, the Non-Company Affiliates, their Representatives or any other Person relating to
physical injuries or property damage arising out of the access rights under this Section 6.01,
including any Claims by any of Buyer’s Representatives for any injuries or Losses while present on
the Real Property unless caused by the gross negligence or willful misconduct of Seller, the
Companies or the Non-Company Affiliates.

     Section 6.02 Conduct of Business Pending the Closing.

     (a) Except as otherwise contemplated by this Agreement or set forth in Schedule 6.02,
during the Interim Period, Seller will cause the Companies to:

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     (i) operate the Facilities and their business in the ordinary course of business
consistent with past practices in all material respects;

     (ii) promptly notify Buyer of any breach of any representation, warranty, covenant or
agreement of Seller made hereunder or any Material Adverse Effect of which Seller has
Knowledge;

     (iii) (A) make Capital Expenditures and continue environmental remediation expenditures
substantially in accordance with the budget attached as Schedule 6.02(a)(iii) (other than
the Capital Expenditures described in clauses (B) and (C) following), (B) subject to NYISO
and ConEd approval, make Capital Expenditures substantially in accordance with the budget
attached as Schedule 6.02(a)(iii) with respect to Capital Expenditures scheduled for the
Unit 30 Outage for November and December of 2005, and (C) at Seller’s election, make Capital
Expenditures substantially in accordance with the budget attached as Schedule 6.02(a)(iii)
with respect to Capital Expenditures scheduled for the Unit 30 Outage for March and April of
2006;

     (iv) pay Taxes as they come due and payable (except for Taxes being contested in good
faith by appropriate proceedings and for which adequate reserves have been provided for in
accordance with GAAP); and

     (v) use their commercially reasonable efforts to (A) preserve their present business
operations, organization (including management) and goodwill with respect to the Facilities,
(B) preserve their present relationship with Persons having business dealings with respect
to the Facilities (including, without limitation, customers and suppliers) and (C) to the
extent allowed by the applicable Governmental Authority, allow Buyer to participate in
material meetings with Governmental Authorities regarding the Facilities.

     (b) Except as otherwise contemplated by this Agreement or set forth in Schedule 6.02
or as consented to by Buyer in writing, which consent shall not be unreasonably withheld,
conditioned or delayed, and except for matters relating to the Excluded Assets, during the Interim
Period Seller shall not (with respect to the Companies), shall cause the Non-Company Affiliates not
to (with respect to the Companies), and cause the Companies not to:

     (i) other than the Company Liens referenced in Section 6.08, permit or allow any Lien
securing indebtedness for borrowed money against any of the Purchased Assets;

     (ii) amend, modify, enter into, grant waiver of any material term of, or give any
material consent with respect to, any Material Contract (or Contract entered into after the
Execution Date that would be a Material Contract if entered into prior to the Execution
Date);

     (iii) except in respect of Capital Expenditures permitted by Section 6.02(b)(iv), enter
into, terminate or amend any Contract involving total consideration throughout its term in
excess of $1,000,000 (other than Contracts entered into in the

21

 

ordinary course of business consistent with past practices which will be fully
performed prior to the Closing without further liability to the Companies);

     (iv) commit to incur Capital Expenditures after the Closing Date in excess of the
applicable amount shown on Schedule 6.02(b)(iv);

     (v) other than trade payables incurred in the ordinary course of business consistent
with past practices or accounts payable pursuant to the Material Contracts (or Contracts
entered into after the Execution Date that would be Material Contracts if entered into prior
to the Execution Date) or the Terminated Contracts, incur, create, assume or otherwise
become liable for Indebtedness or issue any debt securities or assume or guarantee the
obligations of any other Person;

     (vi) fail to maintain its partnership or corporate existence or consolidate with any
other Person or acquire all or substantially all of the assets of any other Person;

     (vii) issue or sell any partnership interests or securities, or rights to acquire or
convertible into, partnership interests or securities, of either Company;

     (viii) liquidate, dissolve, recapitalize, reorganize or otherwise wind up its business
or operations;

     (ix) (A) hire or promote any employee, (B) except with respect to increases in
compensation that, but for the timing of the grant thereof, are in the ordinary course of
business, grant any increase in the compensation or benefits of any employee, (C) establish
any new compensation or Benefit Plans, (D) amend or modify any Company Plan, (E) amend or
modify any Seller Plan insofar as any such amendment or modification relates solely to
Affiliate Employees or former employees, officers or directors of the Companies, or (F)
enter into or modify any employment, consulting, termination, retention, change of control
or severance agreement; provided, that nothing above shall restrict normal periodic
increases, promotions, hiring or changes effected in the ordinary course of business
consistent with past practices, changes required pursuant to applicable Laws, or changes
required pursuant to Contracts in effect as of the Execution Date (including the Collective
Bargaining Contract), except for promotions, hirings or changes relating to employees not
covered by a Collective Bargaining Contract, in which case Seller shall consult with Buyer
prior to any such promotions, hirings or changes;

     (x) enter into, modify or terminate any labor or collective bargaining agreement of
either Company or, through negotiations or otherwise, make any material commitment or incur
any material liability to any labor organizations, except that either Company may reasonably
bargain and negotiate matters in good faith, as contemplated by the Collective Bargaining
Contract and applicable Laws;

     (xi) implement any layoff of employees that could implicate the WARN Act;

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     (xii) enter into any Contract under which either Company advances or loans any amount
to any of its directors, officers, and employees outside the ordinary course of business

     (xiii) enter into any settlement, conciliation or similar agreement, the performance of
which will involve payment after the execution of this Agreement of consideration in excess
of $1,000,000;

     (xiv) except in the ordinary course of business, acquire any material properties or
assets or sell, assign, license, transfer, convey, lease or otherwise dispose of any of the
material Purchased Assets;

     (xv) enter into or agree to enter into any merger or consolidation with, any
corporation or other entity, and not engage in any new business or invest in, make a loan,
advance or capital contribution to, or otherwise acquire the securities of any other Person;

     (xvi) make any material change in its accounting principles, methods or policies,
except as otherwise required by GAAP or make any material change in its risk management
policies or internal controls that are less restrictive than those in effect on the
Execution Date;

     (xvii) enter into any Contract that restrains, restricts, limits or impedes the ability
of a Facility to conduct any business or line of business in any geographic area;

     (xviii) except in the ordinary course of business, terminate, amend, restate,
supplement or waive any rights under any (A) Assigned Contract, (B) any Material Contract
(or Contract entered into after the Execution Date that would be a Material Contract if
entered into prior to the Execution Date) or (C) any Permit;

     (xix) enter into, modify or renew any material Contracts with respect to the sale of
energy that will be performed after the Closing except that would not require the payment,
individually or in the aggregate, of amounts in excess of $1,000,000;

     (xx) purchase any securities of any Person, except for short-term investments or cash
equivalents made in the ordinary course of business consistent with past practices;

     (xxi) cancel, settle or compromise debts having a value in excess of $1,000,000 or
waive claims or rights having a value in excess of $1,000,000;

     (xxii) enter into a fuel purchase, storage, transportation, option, swap or other
arrangement with a term over one year;

     (xxiii) enter into an energy or capacity purchase, sale, exchange, option, swap, or
other arrangement, or transmission arrangement with a term over one year or that would
require credit support in an amount greater than $1,000,000;

     (xxiv) enter into any speculative energy or fuel transactions;

23

 

     (xxv) seek to lower any reference price or bid or cap price for energy or capacity that
Astoria LP sells into the markets administered by the NYISO;

     (xxvi) make or revoke any material election with respect to Taxes or fail to pay any
Taxes of the Companies as they become due and payable (except for Taxes being contested in
good faith by appropriate proceedings and for which adequate reserves have been provided for
in accordance with GAAP);

     (xxvii) amend or modify its Charter Documents; or

     (xxviii) agree or commit to do any of the foregoing.

Notwithstanding the foregoing, Seller may permit the Companies to take commercially reasonable
actions with respect to emergency situations and to comply with applicable Law so long as Seller
shall promptly inform Buyer of such emergency actions.

     Section 6.03 Resignation of Members, Managers, Officers and Directors. At Closing,
Seller shall cause the resignation of all officers and directors or similar persons nominated or
appointed by Seller or its Affiliates to any board or operating, management or other committee
established under either Company’s Charter Documents.

     Section 6.04 Use of Certain Names. Within 120 days following the Closing, Buyer shall
cause the Companies to cease using the words “Reliant”, “Orion” and any word or expression similar
thereto or constituting an abbreviation or extension thereof (the “Seller Marks”), including
eliminating the Seller Marks from each Company’s property and Purchased Assets and disposing of any
unused stationery and literature of the Companies bearing the Seller Marks; and thereafter, Buyer
shall not, and shall cause the Companies and their Affiliates not to, use the Seller Marks or any
logos, trademarks, trade names, or other registered Intellectual Property belonging to Seller or
any Non-Company Affiliate, and Buyer acknowledges that it, its Affiliates and the Companies have no
rights whatsoever to use such Intellectual Property, except as provided in the Transition Services
Agreement.

     Without limiting the foregoing:

     (a) Within 30 days after the Closing Date, Buyer shall cause each Company to change its name
to a name that does not contain any of the Seller Marks.

     (b) Within 30 days after the Closing Date, Buyer shall provide evidence to Seller, in a format
that is acceptable to Seller, that Buyer has provided notice to all applicable Governmental
Authorities and all counterparties to the Material Contracts (and Contracts entered into after the
Execution Date that would be Material Contracts if entered into prior to the Execution Date)
regarding the sale of the Companies and the Purchased Assets to Buyer and the new addresses for
notice purposes.

     Section 6.05 Support Obligations.

     (a) Buyer recognizes that Seller and the Non-Company Affiliates have provided credit support
to the Companies with respect to the Facilities pursuant to certain credit support

24

 

obligations set forth on Schedule 6.05(a) and any other credit support entered into in
compliance with Section 6.02(b) (collectively, the “Support Obligations”), such Support Obligations
(excluding non-dollar denominated guaranties) not to exceed $25,000,000 in the aggregate at any one
time. During the Interim Period, Seller and the Non-Company Affiliates agree not to enter into any
additional non-dollar denominated Support Obligations without the prior consent of Buyer. Prior to
the Closing, Buyer shall use commercially reasonable efforts to effect the full and unconditional
release of Seller and the Non-Company Affiliates from all Support Obligations by:

     (i) furnishing letters of credit containing terms and conditions that are substantially
identical to the terms and conditions of existing letters of credit and from lending
institutions that are either Investment Grade Persons or have a Credit Rating commensurate
with or better than that of lending institutions for existing letters of credit;

     (ii) instituting escrow arrangements with terms equal to or more favorable to the
counterparty than the terms of existing escrow arrangements; and

     (iii) posting surety or performance bonds issued by an Investment Grade Person or
another Person having a net worth or a Credit Rating at least equal to those of the issuer
of existing surety or performance bonds, and which replacement surety or performance bond
contains terms and conditions that are substantially identical to the terms and conditions
of existing surety or performance bonds.

     (b) Buyer and Seller shall use commercially reasonable efforts to cause the beneficiary or
beneficiaries of the Support Obligations to terminate and redeliver to Seller or the Non-Company
Affiliates, as applicable, prior to the Closing, each original copy of each original guaranty,
letter of credit or other instrument constituting or evidencing such Support Obligations as well as
to redeliver to Seller or the Non-Company Affiliate, as applicable, any cash collateral in respect
of the Support Obligations and, as to any Support Obligations terminated after the Closing,
promptly to redeliver such originals or cash to Seller or the Non-Company Affiliates, as
applicable, and in each case, to take such other actions as may be required to terminate such
Support Obligations.

     (c) If Buyer is not successful in obtaining the complete and unconditional release of Seller
and the Non-Company Affiliates from the Support Obligations prior to the Closing, then Buyer shall
indemnify, defend and hold harmless Seller and the Non-Company Affiliates from and against any and
all Losses incurred by any such indemnified Persons in connection with the Support Obligations.
Buyer shall, for so long as any Support Obligation remains outstanding, not, and shall cause the
Companies not to, effect any amendments or modifications or any other changes to the Contracts to
which any of such Support Obligations relate, or otherwise take any action that would effect any
change to such Contracts, guaranties or letters of credit, without Seller’s prior written consent.
Notwithstanding anything in this Agreement to the contrary, during the Interim Period, Buyer shall
have the right to contact and have discussions with each beneficiary of a Support Obligation in
order to satisfy its obligations under this Section 6.05; provided, that (i) Buyer shall give
Seller prior notice before making any such contact, (ii) Seller shall have the right to have one of
its Representatives present on the telephone line or in person, as applicable, during any such
contact or discussion, (iii) Buyer shall only contact and hold

25

 

discussions with such beneficiaries through Representatives of Buyer previously approved by
Seller, and (iv) Buyer shall cause such Representatives to comply with all procedures and protocols
regarding such contacts and discussions that may be established by Seller. Notwithstanding the
foregoing, in no event shall this Section 6.05(c) entitle Seller to receive any confidential
information of Buyer.

     (d) Prior to the Release Date, Buyer agrees not to assign, sell, transfer or convey all or any
portion of the Company Interests and shall cause the Companies not to assign, sell, transfer or
convey all or any substantial portion of the Purchased Assets, in a single transaction or series of
related transactions, in each case without the assignment to the transferee of the rights of Buyer
under this Agreement and the assumption in writing by the transferee (which assumption shall be
enforceable by Seller) of the obligations of Buyer under this Agreement (including the obligations
of Buyer pursuant to Section 6.05(c)); provided that, for the avoidance of doubt, the sale
of equity interests of Buyer (whether accomplished by merger or otherwise) shall not be deemed a
sale, transfer, conveyance or assignment for purposes of this Section 6.05. Any assignment, sale,
transfer or conveyance in contravention of the preceding sentence shall be null and void ab initio.
Buyer agrees to provide Seller with a copy of such assignment and assumption agreement prior to
execution and prior to the assignment, sale, transfer or conveyance and a copy of the executed
assignment and assumption agreement which shall be in the same form with such changes as Seller may
reasonably request. Upon such an assignment, sale, transfer or conveyance pursuant to which the
transferee assumes all of Buyer’s rights and obligations under this Agreement, Buyer shall have no
further rights or obligations under this Agreement (except for obligations relating to breaches by
Buyer occurring prior to the date of the assignment, sale, transfer or conveyance). The “Release
Date” shall be the later of the date on which all of the Support Obligations have been fully and
unconditionally released and the date on which Seller has no more obligations owing to Buyer under
this Agreement.

     Section 6.06 Excluded Assets. Notwithstanding anything in this Agreement to the
contrary, Buyer acknowledges and agrees that Seller will, prior to the Closing Date, cause the
Companies to distribute, transfer or assign to Seller and the Non-Company Affiliates those assets
described on Schedule 6.06 (the “Excluded Assets”). With respect to Excluded Assets that
constitute claims or refunds, Buyer agrees to deliver to the applicable counterparty or party
against whom the claim is asserted written instructions, in a form reasonably acceptable to Seller,
directing such third party to pay to Seller any and all proceeds relating to such Excluded Asset.
In the event Buyer or the Companies receive any such proceeds following the Closing, Buyer will
cause such proceeds to be wire transferred in immediately available funds promptly following
receipt by Buyer or the Companies to the account designated in writing by Seller. At the request
and direction of Seller, Buyer agrees to cause the Companies to join or initiate an action to
recover the Excluded Assets; provided that (a) Seller shall be responsible for the out-of-pocket
costs and expenses of the Companies with respect to any such action, (b) Seller shall have the
right to select the legal counsel with respect to such action, and (c) if Buyer or the Companies
desire to have additional legal counsel with respect to such action, they may do so at their sole
cost and expense. Without limiting the foregoing, Buyer shall and shall cause the Companies to
cooperate reasonably with Seller following the Closing with respect to the recovery by Seller of
the Excluded Assets. Seller shall be liable for any Taxes incurred by the Companies as a result of
the removal of Excluded Assets from the Companies.

26

 

     Section 6.07 Termination of Certain Services, Contracts, Receivables and Payables.

     (a) Notwithstanding anything in this Agreement to the contrary, during the Interim Period, (i)
Seller shall take such actions as may be necessary to terminate or sever as to the Companies (with
appropriate mutual releases) upon the Closing any services jointly shared or used by any of the
Companies and Seller or a Non-Company Affiliate, joint Tax services, joint legal services and joint
banking services (to include the severance of any centralized clearance accounts) and each Contract
listed on Schedule 6.07 (the “Terminated Contracts”), (ii) the Companies shall be entitled
to transfer cash to Seller and the Non-Company Affiliates, and (iii) Seller shall be entitled to
take such actions as may be necessary to settle (through offsets and/or cash transactions)
immediately prior to the Closing such Intercompany Payables and Intercompany Receivables as Seller,
in its sole discretion, elects to settle. Notwithstanding clause (i) foregoing, no such
termination shall affect obligations of Seller and the Non-Company Affiliates under the Transition
Services Agreement or this Agreement. Except for the RES Payable, all Intercompany Receivables and
Intercompany Payables outstanding as of the Closing shall be deemed to be cancelled immediately
prior to the Closing, and the Companies shall have no continuing liabilities with respect to such
payables or otherwise with respect to the terminated services, Terminated Contracts and cash
transfers contemplated by this Section 6.07.

     (b) Promptly following the Closing, Buyer shall take such actions as may be necessary to
become a “Replacement Shipper” as such term is defined in the FERC Gas Tariff of Iroquois Gas
Transmission System, L.P. (“Iroquois”), including the submission of such data as Iroquois may
require and the execution of a “Blanket Gas Transportation Contract for Firm Reserved Service” as
such term is defined in the Iroquois FERC Gas Tariff; and Seller shall cause submission of a notice
to Iroquois of its election to release capacity under Contract Nos. R-2130-02 and R-2130-03
pursuant to Section 28.6 of the Iroquois FERC Gas Tariff (collectively, the “Iroquois Contract”),
which such notice shall specify the following information: (i) the designation of Buyer or an
Affiliate of Buyer as the Prearranged Replacement Shipper; (ii) the term of the releases being the
Closing Date through the remaining term of each contract; (iii) the quantities of firm daily
capacity to be released being the entire Maximum Equivalent Quantity set forth in each contract;
(iv) the rate that Buyer has agreed to pay being Monthly Demand Rate and the Daily Commodity Rate
set forth in Schedule 3 to each contract; and (v) such other information required pursuant to
Section 28.6(c) of the Iroquois FERC Gas Tariff, and Buyer shall agree to participate as such
Prearranged Replacement Shipper.

     Section 6.08 Payment of Indebtedness. Notwithstanding anything in this Agreement to
the contrary, prior to or at the Closing, Seller shall (a) cause any and all Indebtedness of the
Companies referred to in (i) and (ii) of the definition of Indebtedness (including intercompany
Indebtedness) to be paid in full, (b) cause any and all Liens (other than Permitted Encumbrances)
securing any such Indebtedness on the Purchased Assets (collectively, the “Company Liens”) to be
released, and (c) cause any and all agreements relating to the Company Liens or the Indebtedness
secured thereby to be terminated as to the Companies, such that Buyer shall take title to the
Companies and the Purchased Assets free of all such Indebtedness and Company Liens. Furthermore,
Seller shall cause the Companies to be released from all guarantees of third-party obligations and
all obligations of all Non-Company Affiliates and provide such evidence as the Title Insurer may
reasonably request to show that the Liens issued to Bank of America reflected on the Title
Commitments have been released. At the

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Closing, Seller shall deliver to Buyer copies of all pay-off letters and releases for all
Company Liens and the guarantees referenced in this Section 6.08.

     Section 6.09 Insurance.

     (a) With respect to the insurance policies listed on Schedule 6.09 (the “Scheduled
Insurance Policies”), Seller shall use commercially reasonable efforts to cause Buyer (or, at
Buyer’s direction, the Companies) to be listed at Closing as a “Named Insured” under each such
policy and for the Non-Company Affiliate which is currently the “Named Insured” under such policy
to be listed as an “Additional Insured”.

     (b) With respect to Insurance Policies that are “occurrence-based” policies, Seller covenants
and agrees that (i) the Companies will, with respect to the Purchased Assets and their business,
be provided full coverage under the Insurance Policies not assigned to Buyer or the Companies
(excluding the Scheduled Insurance Policies to the extent not assigned to Buyer or the Companies at
Closing, the “Retained Policies”) after the Closing (subject only to deductibles, self-insured
retentions and policy limits of such Retained Policies), with respect to occurrences on and prior
to the Closing Date, regardless of whether claims are brought prior to or after the Closing; and
(ii) after Closing, the Companies will have the right to bring claims (whenever brought) under the
Retained Policies for all occurrences that relate to actions, events, conditions and/or operations
of the Purchased Assets and the business of the Companies on and prior to the Closing Date within
the scope of the Retained Policies. Buyer and the Companies will be responsible for satisfying any
deductibles, self-insured portions, retentions and other retained amounts on insurance coverage
with respect to losses arising under claims made by Buyer or the Companies under the Retained
Policies; provided that Seller shall be responsible for any such deductibles, self-insured
portions, retentions and other retained amounts on insurance coverage with respect to any such
losses arising under the Retained Policies to the extent relating to liabilities for which Seller
and the other Non-Company Affiliates are responsible or pursuant to this Agreement.

     (c) With respect to the Excess Liability Policies, Seller covenants and agrees to use its
commercially reasonable efforts such that (i) the Non-Company Affiliates shall, for a period of two
years after Closing, provide the Companies the ability to file claims under such policies for
occurrences on and prior to the Closing Date (the “Sunset Coverage”); (ii) the Companies will, with
respect to the Purchased Assets and their business, be provided with the benefit of the Sunset
Coverage for two years after the Closing (subject only to deductibles, self-insured retentions and
policy limits of the Sunset Coverage); and (iii) the applicable Non-Company Affiliates will
administer claims on behalf of the Companies under the Sunset Coverage unless the insurers allow
the Companies to administer such claims. Seller will be responsible for any and all premiums
associated with the Sunset Coverage. Buyer and the Companies will be responsible for satisfying
any deductibles, self-insured portions, retentions and other retained amounts on insurance coverage
with respect to losses arising under claims made by Buyer or the Companies under the Sunset
Coverage; provided that Seller shall be responsible for any such deductibles, self-insured
portions, retentions and other retained amounts on insurance coverage with respect to any such
losses arising under the Sunset Coverage to the extent relating to

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liabilities for which Seller and the other Non-Company Affiliates are responsible or pursuant
to this Agreement.

     (d) Except as otherwise set forth in this Section 6.09, Buyer and the Companies shall be
responsible for all cost and expenses incurred by Seller in maintaining and administering claims
under the Retained Policies and the Sunset Coverage; provided that Seller shall be responsible for
such costs and expenses to the extent relating to liabilities for which Seller and the other
Non-Company Affiliates are responsible pursuant to this Agreement. Buyer agrees to provide, and to
cause the Companies to provide, such cooperation as Seller may reasonably request in connection
with the matters covered by this Section 6.09.

     Section 6.10 Tax Matters.

     (a) Consolidated Tax Returns. Seller shall cause to be included in the consolidated
federal income Tax Returns (and the state income Tax Returns of any state that permits
consolidated, combined or unitary income Tax Returns, if any) of the affiliated group of
corporations that includes Seller and OPOS all items of income, gain, loss, deduction and credit or
other items (“Tax Items”) of OPOS through the Closing Date, shall cause such Tax Returns to be
timely filed with the appropriate Taxing Authorities and shall be responsible for the timely
payment (and entitled to any refund, except to the extent such refund is attributable to the
carryback of losses or other Tax items arising after the Closing Date) of all Taxes due with
respect to the periods covered by such Tax Returns. To the extent permitted by Law or
administrative practice, (i) the Tax year of OPOS that includes the Closing Date shall be treated
as closing on the Closing Date and (ii) all transactions occurring on the Closing Date but after
the Closing shall have occurred shall be reported on Buyer’s consolidated United States federal
income Tax Return to the extent permitted by Treasury Regulation Section 1.1502-76(b)(1)(ii)(B) and
shall be similarly reported on other Tax Returns of Buyer or its Affiliates. Without the prior
written consent of Seller, Buyer shall not, and shall not permit any of its Affiliates (including
OPOS) to, carry back any Tax Item of OPOS into a consolidated, combined or unitary income Tax
Return filed by Seller or any of its Affiliates for a taxable period (or portion thereof) ending on
or before the Closing Date.

     (b) Partnership Tax Returns. Seller shall prepare or cause to be prepared all federal
Tax Returns (Forms 1065) and all similar state Tax Returns required to be filed by or with respect
to Astoria LP to report to the partners of Astoria LP partnership Tax Items for Tax periods ending
on or before the Closing Date.

     (c) Cooperation. Buyer and Seller shall cooperate fully, and shall cause their
respective Affiliates, including OPOS and Astoria LP, to cooperate fully, as and to the extent
reasonably requested by either Party, in connection with the filing of Tax Returns pursuant to this
Section 6.10 and any audit, litigation or other proceeding (each a “Tax Proceeding”) with respect
to such Tax Returns. Such cooperation shall include the retention and (upon a Party’s request) the
provision of records and information which are reasonably relevant to any such Tax Proceeding and
making employees available on a mutually convenient basis to provide additional information and
explanation of any material provided hereunder.

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     (d) Transfer Taxes. Seller shall file all Tax Returns required to be filed to report
Transfer Taxes imposed on or with respect to the transactions contemplated by this Agreement, shall
be solely liable for and shall pay all such Transfer Taxes, and shall indemnify, defend and hold
harmless Buyer from and against any and all liability for the payment of such Transfer Taxes and
the filing of such Tax Returns.

     (e) Obligations Under Tax Sharing Agreement. From and after the Closing, the
Companies shall have no liability for Tax payments pursuant to any Tax Sharing Agreements
(including the Tax Allocation Agreement) between the Companies and the Seller Group.

     (f) Tax Indemnities. Seller shall indemnify Buyer, the Companies, and their
Affiliates and hold them harmless from and against any loss, claim, liability, expense, or other
damages attributable to (i) all Taxes (or the non-payment thereof) of the Companies for all taxable
periods ending on or before the Closing Date and the portion through the end of the Closing Date
for any taxable period that includes (but does not end on) the Closing Date (“Pre-Closing Tax
Periods”), (ii) all Income Taxes of any member of an Affiliated Group of which any Company is or
was a member on or prior to the Closing Date including pursuant to Treasury Regulation §1.1502-6 or
any analogous or similar state, local, or foreign law or regulations, (iii) all Taxes attributable
to the assets or operations of the Companies for periods (or partial periods) on or before the
Closing Date, and (iv) any and all Taxes of any Person (other than the Companies) imposed on the
Companies as a transferee or successor, by contract (including pursuant to a Tax Sharing Agreement)
or pursuant to any law, rule, or regulation, which Taxes relate to an event or transaction
occurring before Closing; provided, however, that Seller shall not be obligated to indemnify Buyer
for any such Taxes to the extent such Taxes were included as a liability in the computation of
Closing Date Working Capital Amount and such liability for Taxes exceed the liability for such
Taxes included in the June 30 Balance Sheets.

     (g) Straddle Period Taxes. In the case of any taxable period that includes (but does
not end on) the Closing Date (a “Straddle Period”), the amount of any Income Taxes of the Companies
for the Pre-Closing Tax Period shall be determined based on an interim closing of the books as of
the close of business on the Closing Date (and for such purpose, the taxable period of any
partnership or other pass-through entity in which the Companies hold a beneficial interest shall be
deemed to terminate at such time) and the amount of Taxes (other than Income Taxes) of the
Companies for a Straddle Period that relate to the Pre-Closing Tax Period shall be deemed to be the
amount of such Tax for the entire taxable period multiplied by a fraction the numerator of which is
the number of days in the taxable period ending on the Closing Date and the denominator of which is
the number of days in such Straddle Period.

     (h) Resolution of Disputes. Seller and Buyer agree to work in good faith to resolve
any disputes related to the amount of Tax Items and Taxes attributable to periods prior to and
after the Closing. Failing such agreement, the Parties shall refer the matter to an independent
accounting firm of nationally recognized standing, mutually acceptable to both Seller and Buyer
(the “Independent Accountant”), and the determination of the Independent Accountant with respect to
such matter shall be final and binding. The fees and expenses of the Independent Accountant shall
be borne equally by Seller and Buyer.

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     Section 6.11 Certain Restrictions. During the Interim Period, Buyer agrees that
except as may be agreed in writing by Seller or as may be expressly permitted pursuant to this
Agreement, it shall not, and shall not permit any of its subsidiaries or Affiliates to, acquire,
develop or construct any electric generation or transmission facility, enter into any Contract with
respect thereto, or otherwise obtain control over any electric generation or transmission facility,
in each case located within the control area operated by the New York Independent System Operator
or take any action with any Governmental Authority relating to the foregoing, or agree, in writing
or otherwise, to do any of the foregoing, in each case which could reasonably be expected to
materially delay the consummation of the transactions contemplated hereby or result in the failure
to satisfy any condition to consummation of the transactions contemplated hereby.

     Section 6.12 No Solicitation. During the Interim Period, except as permitted by this
Agreement with Buyer and its Affiliates and Representatives, Seller shall not and shall cause its
Affiliates and officers, directors and employees not to, and Seller shall direct and use its
commercially reasonable efforts to cause its and its Affiliates’ other Representatives not to,
directly or indirectly, initiate, solicit or negotiate, enter into an agreement with respect to, or
provide nonpublic or confidential information to facilitate, any proposal or offer with respect to
any acquisition, reorganization, exchange, consolidation or similar transaction involving either
Company, or any purchase of any voting or other securities or partnership interest of either
Company, or any material assets or businesses of the Companies, in a single transaction or a series
of related transactions, or any combination of the foregoing.

     Section 6.13 Confidentiality.

     (a) All nonpublic information provided to, or obtained by, Buyer or its Representatives from
Seller or its Representatives in connection with the transactions contemplated hereby shall be
“Information” for purposes of the letter dated February 13, 2004 between Madison Dearborn Capital
Partners IV, L.P. and Guarantor (the “Confidentiality Agreement”), the terms of which shall
continue in force until the Closing; provided, that Buyer may disclose such information as may be
necessary in connection with seeking Buyer Governmental Approvals and to obtain financing for the
transactions contemplated hereby (as long as the financing recipient has executed a confidentiality
undertaking at least as restrictive as the Confidentiality Agreement); provided further, that the
obligations of Buyer and its Affiliates under the Confidentiality Agreement shall terminate as of
the Closing Date.

     (b) From and after the Closing, Seller shall, and shall cause each of the Non-Company
Affiliates to, treat and hold as confidential any information concerning the business and affairs
(including know-how and trade secrets) of the Companies (the “Confidential Information”), except
(i) as expressly permitted hereunder, (ii) to the extent such information comes into the public
domain after the Closing through no fault of a Non-Company Affiliate or any Person to whom the
Seller released or disclosed such information, or (iii) to the extent such information was or
becomes available to a Non-Company Affiliate after the Closing Date on a non-confidential basis
from a source other than one of the Companies or Buyer, refrain from using any of the Confidential
Information, and deliver promptly to Buyer or destroy, at the request and option of Buyer, all
tangible embodiments of the Confidential Information which are in a Non-Company Affiliate’s
possession or under a Non-Company Affiliate’s control, and Seller shall certify such delivery or
destruction in a written certificate given by an officer of Seller.

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Seller acknowledges and agrees, and shall cause each of the other Non-Company Affiliates to
acknowledge and agree, that the Confidential Information is the property of the Companies; provided
that Seller may retain one copy of the Confidential Information that it shall treat as confidential
pursuant to the terms of this Section 6.13(b). In the event that any Non-Company Affiliate is
requested or required (by oral question or request for information or documents in any legal
proceeding, interrogatory, subpoena, civil investigative demand, or similar process) to disclose
any Confidential Information, Seller shall notify Buyer promptly of the request or requirement so
that Buyer may seek an appropriate protective order or waive compliance with the provisions of this
Section 6.13(b). If, in the absence of a protective order or the receipt of a waiver hereunder,
the Non-Company Affiliate is, on the advice of counsel, compelled to disclose any Confidential
Information to any Governmental Authority or else stand liable for contempt, such Non-Company
Affiliate may disclose such Confidential Information to the tribunal; provided that Seller
shall use its commercially reasonable efforts to obtain, at the expense and request of Buyer or the
Companies, an order or other assurance that confidential treatment shall be accorded to such
portion of the Confidential Information required to be disclosed as Buyer or the Companies shall
designate.

     Section 6.14 Employee and Benefit Matters.

     (a) Except as set forth in the Transition Services Agreement (to the extent applicable), on or
before the Closing, Seller shall take all actions necessary, if any, to cause (i) the Companies to
cease to be adopting or participating employers under all Seller Plans and (ii) Seller and the
Non-Company Affiliates to cease to be sponsors or adopting or participating employers under all
Company Plans (and, if Seller or a Non-Company Affiliate is a sponsor of a Company Plan, Seller
shall cause OPOS to assume such sponsorship). Seller and the Non-Company Affiliates shall not,
from and after the Closing, have any responsibility or liability with respect to the Company Plans;
provided, that, with respect to the Retirement Plan, Seller shall timely file or cause the
appropriate Non-Company Affiliate to timely file (to the extent the following forms have not been
filed prior to the Closing) (A) the annual report on Form 5500 for 2004 with the Employee Benefits
Security Administration and (B) PBGC Form 1 or PBGC Form 1-EZ (as applicable) for 2005 with the
PBGC. Buyer shall cooperate, and Buyer shall cause its Affiliates to cooperate, with Seller with
respect to the filings described in the preceding sentence, and Buyer shall provide to Seller such
information as Seller may reasonably request in respect of such filings.

     (b) Buyer acknowledges and agrees that (i) certain employees of the Companies are represented
by the Utility Workers Union of America, AFL-CIO and its Local Union No. 1-2 (the “Union”) pursuant
to the terms of the Collective Bargaining Contract, (ii) OPOS will continue to recognize the Union
as the exclusive bargaining representative of the employees whose employment is covered by the
Collective Bargaining Contract, (iii) the Collective Bargaining Contract will continue to be
effective until it expires by its own terms or is renegotiated, and (iv) OPOS will continue to be
bound by the terms, conditions and provisions of the Collective Bargaining Contract. Buyer further
acknowledges that, subject to the terms of the Collective Bargaining Contract and applicable Law,
the employees covered by the Collective Bargaining Contract will continue to be employed by the
Companies following the Closing.

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     (c) Within 45 days after the Execution Date, but effective as of the Closing Date, Buyer or an
Affiliate of Buyer shall offer employment (which shall be contingent on the occurrence of the
Closing) to each individual listed on Schedule 6.14(c) (each, an “Affiliate Employee”).
Each such offer of employment shall be consistent with the provisions of this Section 6.14 and
shall remain open for a period of at least 10 days. For a period of at least one year beginning on
the Closing Date and subject to the remaining paragraphs of this Section 6.14 and an individual’s
continued employment with a Company or an Affiliate of a Company, Buyer shall cause each Continuing
Employee to be provided with base salary and wages, bonus opportunity (including annual incentive
compensation but excluding any equity based arrangements) and health, welfare and 401(k) benefits
on a basis substantially similar in the aggregate to the compensation and health, welfare and
401(k) benefits provided to such Continuing Employee by Seller and its Affiliates (including the
Companies) immediately prior to the Closing; provided, that with respect to Continuing Employees
whose employment is covered by the Collective Bargaining Contract, Buyer shall cause the
compensation and benefits provided to such employees from and after the Closing Date to also be
consistent with the terms of the Collective Bargaining Contract.

     (d) To the extent consistent with the Collective Bargaining Contract, as applicable, Buyer
shall cause, or shall cause the Companies to cause, each Continuing Employee and his or her
eligible dependents (including all such Continuing Employee’s dependents covered immediately prior
to the Closing Date by a Company Plan or a Seller Plan that is a group health plan) to be offered
coverage under a group health plan maintained by Buyer or an Affiliate of Buyer that (i) provides
medical and dental benefits to the Continuing Employee and such eligible dependents effective
immediately upon the Closing Date or such other time as set forth in the Transition Services
Agreement and (ii) credits such Continuing Employee, for the year during which such coverage under
such group health plan begins, with any deductibles and co-payments already incurred during such
year under a Company Plan or a Seller Plan that is a group health plan.

     (e) Buyer shall cause, or shall cause the Companies to cause, the employee benefit plans and
programs maintained after the Closing Date for the benefit of the Continuing Employees to recognize
each Continuing Employee’s years of service and level of seniority prior to the Closing Date with
Seller, the Companies and their Affiliates (including service and seniority with any other employer
that was recognized by Seller, the Companies or their Affiliates for purposes of any applicable
Company Plan or Seller Plan) for purposes of terms of compensation and benefits under such plans
and programs. Buyer shall cause, or shall cause the Companies to cause, each employee welfare
benefit plan or program sponsored by Buyer or one of its Affiliates that a Continuing Employee may
be eligible to participate in on or after the Closing Date to waive any preexisting condition
exclusion with respect to participation and coverage requirements applicable to such Continuing
Employee to the same extent such preexisting condition exclusion was not applicable under the
Company Plan or Seller Plan immediately prior to the Closing Date.

     (f) Buyer agrees that it assumes all obligations to provide any required notice under the WARN
Act or other applicable Laws, and, except as otherwise provided herein, to pay all severance
payments, damages for wrongful dismissal and related costs, with respect to the termination of any
employee of the Companies that occurs on or after the Closing Date.

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     (g) As soon as practicable following the Closing Date, Seller shall cause to be transferred
from the trustee of the Seller Savings Plans to the trustee of a defined contribution plan
maintained by Buyer (the “Buyer Savings Plan”) an amount in cash equal to the aggregate account
balances of the Company Participants under the Seller Savings Plans determined as of the transfer
date; provided, that to the extent any Company Participant owes any amount to a Seller Savings Plan
pursuant to the terms of a loan (provided such loan is not in default) from such plan to such
Company Participant, an in-kind transfer of such loan shall be made in lieu of the transfer of
cash. From and after the date of such transfer, Buyer shall cause the Buyer Savings Plan to assume
the obligations of the Seller Savings Plans with respect to benefits accrued by the Company
Participants under the Seller Savings Plans, and the Seller Savings Plans shall cease to be
responsible therefor. The Companies shall be responsible for, and shall contribute to each Seller
Savings Plan as soon as practicable after the Closing Date and prior to the transfer described in
this paragraph, all unpaid (A) pre-tax and after-tax contributions to such Seller Savings Plan
attributable to withholdings from the compensation of employees of the Companies with respect to
periods ending on or before the Closing Date and (B) employer matching contributions due with
respect to pre-tax and after-tax contributions to such Seller Savings Plan by employees of the
Companies for periods ending on or before the Closing Date. For purposes of determining the amount
of such employer matching contributions under each Seller Savings Plan, the Closing Date shall be
deemed to be the last day of a payroll period. Buyer and Seller shall cooperate in making all
appropriate arrangements and filings, if any, in connection with the transfer described in this
paragraph. Further, Buyer and Seller shall cooperate and take such actions as are necessary to
permit the continuation of loan repayments by Continuing Employees to the Seller Savings Plans by
payroll deductions during the period beginning on the Closing Date and ending on the date of the
transfer described in this paragraph. Seller represents, covenants and agrees with respect to each
Seller Savings Plan, and Buyer represents, covenants and agrees with respect to the Buyer Savings
Plan, that, as of the date of the transfer described in this paragraph, such plan will satisfy the
requirements of Sections 401(a), (k), and (m) of the Code and will have received, or shall timely
file for, a favorable determination letter from the IRS regarding such qualified status and
covering amendments required to have been adopted prior to the expiration of the applicable
remedial amendment period.

     (h) Claims of Continuing Employees and their eligible beneficiaries and dependents for
medical, dental, prescription drug, life insurance, and/or other welfare benefits (“Welfare
Benefits”) (other than disability benefits) and/or workers compensation benefits that are incurred
on or before the Closing Date shall be the sole responsibility of Seller, whether pursuant to a
Seller Plan, a Company Plan or otherwise. Claims of Continuing Employees and their eligible
beneficiaries and dependents for Welfare Benefits (other than disability benefits) and/or workers
compensation benefits that are incurred after the Closing Date shall be the sole responsibility of
Buyer and the Companies. For purposes of the preceding provisions of this paragraph, a
medical/dental claim shall be considered incurred on the date when the medical/dental services are
rendered or medical/dental supplies are provided, and not when the condition arose or when the
course of treatment began, and a claim for workers’ compensation benefits shall be considered
incurred when the injury occurred. Seller and Buyer hereby agree that any employee of the
Companies or any Affiliate Employee who (i) as of the day immediately preceding the Closing Date is
receiving or entitled to receive short-term disability benefits under a Seller Plan and who
subsequently becomes eligible to receive long-term disability benefits, or (ii) as of the

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day immediately preceding the Closing Date is receiving or entitled to receive long-term
disability benefits, shall become eligible or continue to be eligible, as applicable, to receive
long-term disability benefits under a Seller Plan that is a long-term disability plan unless and
until such employee is no longer disabled (subject to the terms of such Seller Plan). Claims of
Continuing Employees and their eligible beneficiaries and dependents for short-term or long-term
disability benefits that arise from disabling events that occur on or after the Closing Date shall
be the sole responsibility of Buyer and the Companies.

     (i) With respect to all employees who terminated from employment with a Company prior to the
Closing Date and who are listed on Schedule 6.14(i) (which schedule shall be updated no
later than 30 days following the Closing Date to reflect an inclusive list of such former
employees) and who have been, or are eligible to be, provided with post-retirement medical, dental,
life insurance and/or other welfare benefit coverage as of the Closing Date under a Seller Plan or
Company Plan, the Companies shall assume and/or retain any and all liability with respect to the
provision of such coverages to such terminated employees and their eligible dependents and
beneficiaries on and after the Closing Date. In addition, the Companies shall extend
post-retirement medical, dental, disability, life insurance and/or other welfare benefit coverages
to all Continuing Employees (and their eligible dependents and beneficiaries) who are, or who are
hereafter found to be or have been, eligible for such coverages; provided, however, that nothing
contained herein shall be construed as limiting or restricting Buyer’s or a Company’s ability to
amend, modify or terminate such post-retirement medical, dental, disability, life insurance and/or
other welfare benefit coverages after the Closing Date. Neither Seller nor any of the Non-Company
Affiliates shall have any liability on or after the Closing Date with respect to the provision of
post-retirement medical, dental, disability, life insurance and/or other welfare benefit coverages
for those persons described in the preceding sentences of this paragraph.

     (j) Except to the extent required by applicable Law, Seller shall not pay Continuing Employees
(other than Affiliate Employees who are Continuing Employees, who will be paid by Seller their
accrued and unused vacation as of the Closing Date) their accrued and unused vacation, and a
Company, Buyer or an Affiliate of Buyer, as applicable, shall provide, without duplication of
benefits, all such Continuing Employees with vacation time rather than cash in lieu of vacation
time for all accrued and unused vacation through the Closing Date to the extent the liability for
such accrued but unused vacation is reflected in the Closing Date Working Capital Amount.

     (k) As soon as practicable following the Closing Date, Seller shall cause to be transferred
from the trustee of the master trust that holds the assets of the Retirement Plan as of the Closing
Date to the trustee of a trust established or maintained by Buyer or a Company to hold the assets
of the Retirement Plan after the Closing Date an amount equal to the Retirement Plan’s share of the
assets of the master trust as determined as of the transfer date in accordance with such master
trust, the Code, ERISA, and the Retirement Plan by the Reliant Energy, Inc. Benefits Committee (the
“Benefits Committee”) (which determination shall be based on the books and records maintained by
the trustee of the master trust). Such transfer shall be made in cash or in-kind as agreed to by
the Benefits Committee and Buyer or the Companies. Buyer and Seller shall cooperate in making all
appropriate arrangements and filings, if any, in connection with the transfer described in this
paragraph. In addition, (i) effective as of the Closing Date,

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Seller shall cause the Benefits Committee to cease to be the plan administrator and to
otherwise administer any aspect of the Retirement Plan as of the Closing Date, and (ii) on the
Closing Date, Buyer shall cause one of the Companies to appoint a new plan administrator for the
Retirement Plan effective as of such date.

     (l) If, within the one-year period beginning on the Closing Date, (i) a Continuing Employee
(other than a Continuing Employee whose employment is covered by the Collective Bargaining
Contract) voluntarily terminates his or her employment with Buyer and its Affiliates within 30 days
after the date upon which he or she is notified that the principal place of his or her employment
is changing to a location that is 25 miles or more from the location of such employee’s principal
place of employment immediately prior to the Closing Date, or (ii) the employment of a Continuing
Employee (other than a Continuing Employee whose employment is covered by the Collective Bargaining
Contract) is terminated by Buyer or an Affiliate of Buyer for a reason other than cause (as that
term is defined in the Severance Plan, but based on the terms of such plan as in effect on the
Execution Date), then, in any such case, Buyer shall provide such Continuing Employee with
severance benefits at least equal to the severance benefits which such Continuing Employee would
have received under the Severance Plan had the employment of such Continuing Employee been
terminated under circumstances entitling him or her to benefits under such plan. Such severance
benefits shall be determined based on the terms of the Severance Plan in effect on the Execution
Date, but Buyer shall take into account such Continuing Employee’s aggregate service with Buyer and
its Affiliates and his or her pre-Closing Date service recognized pursuant to Section 6.14(e).

     (m) Except as specifically set forth in this Section 6.14 or in the Transition Services
Agreement, Seller agrees to indemnify and hold harmless Buyer, the Companies and their Affiliates
with respect to all claims and liabilities under any Seller Plan.

     Section 6.15 Public Announcements. Seller and Buyer will consult with each other
before issuing, and provide each other a reasonable opportunity to review and make reasonable
comment upon, any press release or making any public statement with respect to this Agreement and
the transactions contemplated hereby and, except as may be required by applicable Law or any
listing agreement with the NYSE, will not issue any such press release or make any such public
statement prior to such consultation; provided, that each of the Parties may issue a press release
or make any public statement in response to specific questions by the press, analysts, investors or
those attending industry conferences or financial analyst conference calls, so long as any such
statements are not inconsistent with or provide more information than is contained in previous
press releases, public disclosures or public statements made by the other Party, as the case may
be; provided further, that each Party may make disclosures to Persons bound by a confidentiality
obligation to the disclosing Party that covers such disclosed information.

     Section 6.16 Expenses and Fees. Except as expressly provided otherwise herein, all
costs and expenses incurred in connection with this Agreement and the transactions contemplated
hereby shall be paid by the Party incurring such expenses.

     Section 6.17 Agreement to Cooperate.

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     (a) Subject to the terms and conditions of this Agreement and applicable Law, each Party shall
use its commercially reasonable efforts to fulfill the conditions precedent to the other’s
respective obligations hereunder and to secure all necessary or appropriate waivers, consents,
approvals or authorizations of Governmental Authorities (including by pursuing all possible
appeals) and third-parties required in order to consummate the transactions contemplated by this
Agreement.

     (b) In addition to and without limitation of the foregoing, each of Buyer and Seller
undertakes and agrees to (i) file (and each Party agrees to cause any Person that may be deemed to
be the ultimate parent entity or otherwise to control such Party to file, if such filing is
required by Law) as soon as practicable, and in any event prior to 20 Business Days after the
Execution Date, a Notification and Report Form under the HSR Act with the United States Federal
Trade Commission and the Antitrust Division of the United States Department of Justice, (ii) file
as soon as practicable, and in any event prior to 20 Business Days after the Execution Date, any
form or report required by FERC, (iii) file as soon as practicable any form or report required by
any other Governmental Authority relating to antitrust, competition, trade or energy regulation
matters, and (iv) use commercially reasonable efforts to receive any clearance or approval required
by any Governmental Authority or applicable Law, in each case, with respect to the transactions
contemplated by this Agreement. Each of Buyer and Seller shall (and shall cause any such parent
entity to) (A) respond as promptly as practicable to any inquiries or requests received from any
Governmental Authority for additional information or documentation, (B) not extend any waiting
period under the HSR Act or enter into any agreement with any Governmental Authority not to
consummate the transactions contemplated by this Agreement, except with the prior consent of the
other Party (which shall not be unreasonably withheld, delayed or conditioned), and (C) bear 50% of
the filing fees made with Governmental Authorities in connection with the transactions contemplated
hereby. Each Party shall consult and cooperate in the regulatory review process and (I) promptly
notify the other Party of any written communication to that Party or its Affiliates from any
Governmental Authority and, subject to applicable Law, permit the other Party or its counsel to
review in advance any proposed written communication to any of the foregoing; (II) not agree to
participate, or to permit its Affiliates to participate, in any substantive meeting or discussion
with any Governmental Authority in respect of any filings, investigation or inquiry concerning this
Agreement or the transactions contemplated hereby unless it consults with the other Party in
advance and, to the extent permitted by such Governmental Authority, gives the other Party the
opportunity to attend and participate thereat; and (III) subject to applicable Law, furnish the
other Party with copies of all correspondence, filings, and communications (and memoranda setting
forth the substance thereof) between them and their Affiliates and their respective Representatives
on the one hand, and any Governmental Authority or members of their respective staffs on the other
hand, with respect to this Agreement and the transactions contemplated hereby. Promptly after the
Execution Date, Seller agrees to cause the Companies to petition the NYISO and ConEd to approve the
bifurcation of work shown on Schedule 6.02(a)(iii) between November and December of 2005 and March
and April of 2006.

     (c) In addition to and without limiting the foregoing, each Party shall avoid or eliminate
each and every impediment applicable to such Party under any applicable antitrust, competition, or
trade or energy regulation law (including the Federal Power Act, as amended, and the FERC’s
regulations thereunder, any applicable New York Laws, and the New York State

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Public Service Commission regulations thereunder; the HSR Act; and, if applicable, the Public
Utility Holding Company Act of 1935, as amended, and the regulations promulgated thereunder) that
may be asserted by any Governmental Authority with respect to the transactions contemplated hereby
so as to enable the Closing to occur no later than the Termination Date.

     (d) Seller shall provide reasonable assistance to Buyer in obtaining (i) on or prior to the
30th day prior to Closing, Surveys on the Real Property and (ii) on or prior to the
Closing Date, the Title Policies on the Real Property. Seller shall deliver to the Title Insurer
such affidavits as may be reasonably necessary to remove the mechanic’s lien and parties in
possession exceptions from the Title Policies.

     (e) With regard to water intake and discharge issues at the Facilities, and any related
consent orders from Governmental Authorities, to the extent permitted by applicable Law, Seller
shall (A) promptly notify Buyer of any material written communication from any Governmental
Authority and permit Buyer or its counsel to review in advance any proposed material written
communication to any Governmental Authority, (B) not agree to participate, or to permit its
Affiliates to participate, in any substantive meeting or discussion with any Governmental Authority
unless it consults with Buyer in advance and gives Buyer the opportunity to attend such meetings
and discussions, and (C) furnish Buyer with copies of all material correspondence, filings, and
communications (and memoranda setting forth the substance thereof) between them and their
Affiliates and their respective Representatives on the one hand, and any Governmental Authority or
members of their respective staffs on the other hand.

     Section 6.18 Directors’ and Officers’ Indemnification.

     (a) The indemnification provisions of each Company’s Charter Documents as in effect at the
Closing shall not be amended, repealed or otherwise modified for a period of six years from the
Closing Date in any manner that would adversely affect the rights thereunder of individuals who at
the Closing were directors, officers or employees of either Company; provided, that all rights to
indemnification in respect of any action pending or asserted or any claim made within such period
shall continue until the disposition of such action or resolution of such claim. From and after
the Closing, Buyer shall assume, be jointly and severally liable for, and honor, guaranty and stand
surety for, and shall cause the Companies to honor, in accordance with their respective terms, each
of the covenants contained in this Section 6.18, without limit as to time.

     (b) Buyer shall pay all reasonable expenses, including reasonable attorneys’ fees, that may be
incurred by an indemnified person in enforcing the indemnity set forth in Section 6.18(a).

     Section 6.19 Further Assurances. Subject to the terms and conditions of this
Agreement, at any time or from time to time after the Closing, at any Party’s request and without
further consideration, the other Party shall execute and deliver to such Party such other
instruments of sale, transfer, conveyance, assignment and confirmation, provide such materials and
information and take such other actions and execute and deliver such other documents as such Party
may reasonably request in order to consummate the transactions contemplated by this Agreement.
Furthermore, in the event that after the Closing, Seller or any Non-Company

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Affiliate receives any cash or has title to any other asset primarily related to the
operations of the Companies (other than Excluded Assets and cash or assets to which Seller is
entitled hereunder), Seller shall, and shall cause each such Non-Company Affiliate, to pay such
cash or deliver such other asset to the Companies promptly, but in any event within five (5)
Business Days, after receipt thereof.

     Section 6.20 Non-Solicitation. For a period of two years from and after the Closing
Date, Seller shall not, and shall cause the Non-Company Affiliates not to, directly or indirectly,
cause, solicit, induce or encourage any Continuing Employees to leave the employment of the
Companies or hire, employ or otherwise engage any such individual (except pursuant to a general
solicitation not targeted at such employees).

     Section 6.21 Hedging and Energy Management Services. On the Execution Date, the
Companies have entered into that certain Hedging Agreement with Morgan Stanley Capital Group Inc.
(the “Hedging Agreement”). On and prior to the Closing Date, Seller shall not, and shall cause the
Non-Company Affiliates and the Companies not to, amend, modify, waive or terminate any rights or
obligations under the Hedging Agreement or take any action or fail to take any action which could
cause the counterparty to such Hedging Agreement to terminate, suspend or accelerate its
obligations under the Hedging Agreement (other than in connection with the exercise of the rights
of the Non-Company Affiliates and the Companies in the event of a payment default by the
counterparty).

     Section 6.22 Subsequent Financials Statements.

     (a) As soon as practicable, (i) but in any event no later than 30 days after the end of each
calendar month, beginning with the calendar month end immediately preceding the date of this
Agreement, Seller will deliver to Buyer a copy of the consolidated balance sheet, and statement of
operations for the Companies, at and for the year to date periods ending on the last day of each
such month, (ii) but in any event no later than 45 days after the end of each calendar quarter,
beginning with the calendar quarter end immediately preceding the date of this Agreement, Seller
will deliver to Buyer a copy of the consolidated balance sheet, and statement of operations for the
Companies, at and for the year to date periods ending of the last day of such calendar quarter, and
(iii) but in any event no later than 45 days after the end of each calendar quarter, beginning with
the calendar quarter ending September 30, Seller will deliver to Buyer a copy of the consolidated
cash flow statement for the Companies. The financial statements referred to in this Section
6.22(a) are collectively referred to as the “Subsequent Financial Statements”.

     (b) As soon as practicable, but in any event no later than 45 days prior to the Closing,
Seller shall furnish to Buyer the audited consolidated balance sheet of the Companies (after
elimination of any Excluded Assets and any liabilities for which Seller and the Non-Company
Affiliates are to remain solely responsible by operation of law or this Agreement, in each case to
the extent permitted by Regulation S-X) as at December 31, 2004 and December 31, 2003, together
with the related audited consolidated statement of income and consolidated statement of cash flows
for the twelve-month periods ended December 31, 2004 and December 31, 2003. Not less than 45 days
prior to Closing, Seller shall furnish to Buyer the audited consolidated balance sheet of the
Companies (after elimination of any Excluded Assets and any liabilities for which

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Seller and the Non-Company Affiliates are to remain solely responsible by operation of law or
this Agreement, in each case to the extent permitted by Regulation S-X) as at December 31, 2005,
together with the related audited consolidated statement of income and consolidated statement of
cash flows for the twelve-month period ended December 31, 2005; provided, however, that Seller
shall not be required to provide the audited financial statements provided for in this sentence to
Buyer before March 31, 2006 if the Closing has occurred on or prior to such date and if the Closing
occurs prior to such date, Seller shall only be required to assist Buyer in preparing such
financial statement. The financial statements referred to in this Section 6.22(b) (other than the
financial statement referred to in the preceding sentence that Seller assists in preparing) are
collectively referred to herein as the “Audited Financial Statements”.

     (c) Seller agrees that, when delivered, each of the Subsequent Financial Statements, and
Audited Financial Statements will fairly present in accordance with GAAP, the financial condition
of the Companies as of the date of presentation and the results of operations for the periods
covered thereby, except in the case of the Subsequent Financial Statements for the allocation of
corporate support and general and administrative expenses and the allocation of goodwill and its
related accounting in accordance with SFAS No. 142, “Goodwill and Other Intangible Assets,” and
except for the absence of footnote disclosure. Seller agrees that it shall execute any management
representation letters such that the Audited Financial Statements will be delivered with
unqualified opinions (including to the foregoing effect) and shall cause the Audited Financial
Statements to be addressed to the Companies. Seller agrees that it shall use its commercially
reasonable efforts to cause its independent accountants to provide their written agreement to
permit the use of the Audited Financial Statements (i) in connection with rating agency
presentations, bank syndication meetings, bank books and offerings of securities by Buyer and/or
one or more of the Companies as contemplated by the Commitment Letters, and (ii) subject to such
accounting firm’s normal procedures, in other private or public offerings of securities as may be
reasonably requested by Buyer and/or one or more of the Companies, together in each case with any
comfort letter from Seller’s independent accountants with respect to such financial statements
requested by Buyer and/or one or more of the Companies.

     (d) Seller shall, and shall cause the other Non-Company Affiliates to, use its commercially
reasonable efforts to cooperate with Buyer in connection with Buyer’s financing for the
transactions contemplated hereby and to cause satisfaction of the conditions for receipt of such
financing to be satisfied. Without limiting the generality of the foregoing, Seller shall, and
shall cause the other Non-Company Affiliates to, provide information to and permit the financing
sources and their Representatives access to the Purchased Assets and the business of the Companies,
as provided in Section 6.01 hereof, and, upon the reasonable request of Buyer, participate in
meetings with prospective investors and participate in meetings with rating agencies and any “road
shows”, participate in drafting sessions related to the bank book and offering materials for the
debt financing of Buyer and the Companies contemplated for the transactions contemplated hereby,
use commercially reasonable efforts to cause the independent accountants that prepared the Audited
Financial Statements to participate in drafting sessions related to any offering materials for the
debt financing contemplated for the transactions contemplated hereby and make work papers available
to Buyer, the agent for the debt financing and their respective Representatives. Out-of-pocket
costs incurred by Seller for participation by its external accountants, outside counsel, and other
outside advisors and consultants in the transactions contemplated in the immediately foregoing
sentence shall be paid by Buyer;

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provided that, for the avoidance of doubt, the fees of Seller’s independent accountants for
preparation of the Audited Financial Statements shall be borne by Seller.

     Section 6.23 Funding Commitments. Buyer agrees to use reasonable best efforts to obtain the financing specified in the Debt
Commitment Letter on terms no less favorable to Buyer than those specified therein or other terms
reasonably satisfactory to Buyer, whether with the counterparty to the Debt Commitment Letter or an
alternative financing source. Buyer shall use reasonable best efforts to promptly negotiate
definitive documentation (“Definitive Financing Documentation”) for the transactions contemplated
by the Commitment Letters and to have such Definitive Financing Documentation ready for execution
at Closing. Without the prior written approval of Seller, Buyer agrees not to amend in any respect
or waive any right with respect to the Commitment Letters that could reasonably be expected to
materially delay the consummation of the Closing.

     Section 6.24 Title Defects. No later that 15 days after Buyer has received updated commitments for the issuance of the Title
Policies (the “Updated Title Commitments”), Buyer may provide a written notice (“Objection Notice”)
to Seller of any Liens, defects or exceptions (other than Permitted Exceptions) that appear on the
Updated Title Commitments, but did not appear on the Title Commitments. If no Objection Notice is
given to Seller by the time specified in the preceding sentence, then Buyer shall be deemed to have
accepted all such defects and exceptions, and all such defects and exceptions shall be deemed to be
Permitted Exceptions hereunder. Seller shall have the option to either (i) cure any defect or
exception which is the subject of an Objection Notice, within 60 days after receipt of the
Objection Notice, or (ii) indemnify Buyer against Losses incurred by Buyer as a result of such
defect or exception. At Closing, Seller shall indemnify and hold the Title Company harmless from
any exceptions to the Updated Title Commitments created by, through or under Seller or any of its
Affiliates during the period between the issuance of the Title Commitments and the issuance of the
Updated Title Commitments.

     Section 6.25 Work-Around. If there are any Assigned Contracts that require consent of the counterparty thereto for
assignment or that are not by their terms assignable or transferable, Seller shall use commercially
reasonable efforts to obtain, or cause to be obtained, on or prior to the Closing, any approvals or
consents necessary to convey to assign such Assigned Contracts to the Companies effective as of the
Closing. Buyer shall cooperate with Seller in such manner as may be reasonably requested in
connection therewith, but Buyer shall not be required to pay any amount to effect such assignment.
In the event any consent or approval to an assignment contemplated hereby is not obtained on or
prior to the Closing Date, Seller shall continue to use commercially reasonable efforts to obtain
any such approval or consent after the Closing Date until such time as such consent or approval has
been obtained or it shall become reasonably apparent that such consent or approval is not
forthcoming, and Seller shall use commercially reasonable efforts, in cooperating with Buyer, to
provide Buyer with an appropriate and economically feasible arrangement (a “Work-around”) to
provide that the Companies shall receive the Non-Company
Affiliate’s interest in and to the benefits under any such Contract; provided, that Buyer shall
undertake to pay or satisfy the corresponding liabilities for the enjoyment of such benefit to the
extent (a) Buyer is receiving such interest and benefits and (b) Buyer would have been responsible
therefor if such consent or approval had been

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     obtained, in which case such Contract will be treated
as an Assumed Contract for all purposes hereunder to the extent of such Work-around.

ARTICLE VII

CONDITIONS TO THE CLOSING

     Section 7.01 Conditions to the Obligations of Each Party. The obligations of the Parties to proceed with the Closing are subject to the satisfaction on or
prior to the Closing Date of all of the following conditions, any one or more of which may be
waived in writing, in whole or in part, as to a Party by such Party:

     (a) (i) no judgment, injunction, order or decree of a court or other Governmental Authority of
competent jurisdiction shall be in effect which has the effect of making the transactions
contemplated by this Agreement illegal or otherwise restraining or prohibiting the consummation of
the transactions contemplated by this Agreement (each Party agreeing to use its commercially
reasonable efforts, including appeals to higher courts, to have any judgment, injunction, order or
decree lifted) and (ii) no material legal proceedings shall have been instituted against either
Seller or Buyer, or any of the Purchased Assets, seeking to restrain or prohibit the consummation
of the transactions contemplated hereby; provided, that Seller and Buyer shall use their
commercially reasonable efforts to have dismissed, settle or otherwise resolve such legal
proceedings;

     (b) (i) any waiting period applicable to consummation of the transactions contemplated by this
Agreement under the HSR Act shall have expired or been terminated, and (ii) all Seller Governmental
Approvals and Buyer Governmental Approvals shall have been filed, made and obtained, as the case
may be, on terms and subject to conditions that would not reasonably be expected to have a Material
Adverse Effect; provided, that a Party whose breach of its obligations under this Agreement caused
a failure to so file, make or obtain such Seller Governmental Approvals or Buyer Governmental
Approvals, as the case may be, shall be deemed to have waived this condition to the extent of such
failure; and

     (c) all consents, waivers and approvals listed on Schedule 7.01(c) shall have been
obtained.

     Section 7.02 Conditions to the Obligations of Buyer. The obligation of Buyer to proceed with the Closing is subject to the satisfaction on or prior
to the Closing Date of the following further conditions, any one or more of which may be waived, in
whole or in part, by Buyer:

     (a) Seller shall have performed in all material respects all of its obligations (other than
its obligations under the first sentence of Section 6.22(c)) hereunder required to be
performed by it at or prior to the Closing Date, including, without limitation, its obligation
to make the deliveries contemplated by Section 2.04 hereof;

     (b) the representations and warranties of Seller contained in this Agreement (without regard
to “materiality”, “material adverse effect”, Material Adverse Effect or similar qualifiers, without
regard to any updates to the Seller’s Disclosure Schedules and without regard to any notice of any
breach of any representation or warranty given on or after the Execution Date) shall

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be true and
correct as of the Closing Date (except to the extent such representations and warranties expressly
relate to an earlier date, in which case as of such earlier date), except for failures to be true
and correct that would not reasonably be expected to have, individually or in the aggregate, a
Material Adverse Effect;

     (c) Each of the conditions to the counterparties’ obligations in the Debt Commitment Letter
shall have been satisfied in full (other than conditions relating to (i) funding pursuant to the
Equity Commitment Letter or similar undertaking regarding equity funding by Buyer and its
Affiliates, (ii) the delivery of documents at the closing by the borrower, the Sponsors (as defined
in the Debt Commitment Letter) or their Affiliates pursuant to the financing documents executed in
accordance with the Debt Commitment Letter, (iii) costs, fees, expenses and other compensation
contemplated by the Debt Commitment Letter or related letters payable by the borrower, the Sponsors
(as defined in the Debt Commitment Letter) or their Affiliates to the lead arrangers, other lenders
and administrative agents, and (iv) a breach in any material respect by the borrower, the Sponsors
(as defined in the Debt Commitment Letter) or their Affiliates under the Debt Commitment Letter or
fee letters; provided that the failure to meet a condition under the Debt Commitment Letter would
not be covered by this clause (iv) unless there was a corresponding breach that led to the failure
of the condition);

     (d) Seller shall have delivered to Buyer not less than 45 days prior to Closing the Audited
Financial Statements, and there shall be no changes in the Audited Financial Statements compared to
the corresponding unaudited financial statements described in Section 4.04 that could reasonably be
expected to have, individually or in the aggregate, a Material Adverse Effect, disregarding any
changes solely by virtue of making the adjustments described in the GAAP exceptions in Section
4.04(a) and the eliminations described in Section 6.22(b);

     (e) There shall have been no Material Adverse Effect since each of June 30, 2005 and the
Execution Date;

     (f) The Hedging Agreement shall remain in full force and effect and no default shall have
arisen under the Hedging Agreement and no right of termination, amendment or modification of the
Hedging Agreement shall have arisen; and

     (g) Buyer shall have received a certificate signed on behalf of Seller by an executive officer
of Seller indicating that the conditions provided in Section 7.02(a) and Section 7.02(b) have been
satisfied.

     Section 7.03 Conditions to the Obligations of Seller. The obligation of Seller to proceed with the Closing is subject to the satisfaction on or prior
to the Closing Date of the following further conditions, any or more of which may be waived, in
whole or in part, by Seller:

     (a) Buyer shall have performed in all material respects all of its obligations hereunder
required to be performed by it at or prior to the Closing Date;

     (b) the representations and warranties of Buyer contained in this Agreement (i) that are
qualified as to “material adverse effect” shall be true and correct in as of the Closing Date,
except to the extent such representations and warranties expressly relate to an earlier date (in
which case as of such earlier date), and (ii) those not so qualified shall be true and correct as
of

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the Closing Date, except to the extent such representations and warranties expressly relate to
an earlier date (in which case as of such earlier date), except for failures of the representations
and warranties referred to in this clause (ii) to be true and correct as do not and would not
reasonably be expected to have, in the aggregate, a material adverse effect on Buyer’s ability to
perform its obligations hereunder; and

     (c) Seller shall have received a certificate signed on behalf of Buyer by an executive officer
of Buyer indicating that the conditions provided in Section 7.03(a) and Section 7.03(b) have been
satisfied.

ARTICLE VIII

TERMINATION

     Section 8.01 Termination. This Agreement may be terminated and the consummation of the transactions contemplated hereby
may be abandoned at any time prior to the Closing only under one of the following circumstances:

     (a) by mutual written consent of Seller and Buyer;

     (b) by either Seller or Buyer:

     (i) if the Closing has not occurred on or before one year after the Execution Date
(such date, as it may be extended under clause (A) of this paragraph, the “Termination
Date”) provided, that (A) each of the Parties shall have the option, in its sole discretion,
to extend the Termination Date for an additional period of time not to exceed 90 days if all
other conditions to Closing (other than the condition described in the following clause (B))
are satisfied or capable of then being satisfied and the sole reason (other than the
condition described in the following clause (B)) that the Closing has not occurred by such
date is that the condition set forth in Section 7.01(a) or (b) has not been satisfied due to
the failure to obtain the necessary waivers, consents, approvals and authorizations under
applicable Laws or a judgment, injunction, order or decree of a court or other Governmental
Authority of competent jurisdiction shall be in effect and Buyer or Seller is still
attempting to obtain such necessary waivers, consents, approvals and authorizations under
applicable Laws, or is contesting (x) the refusal of the relevant Governmental Authority to
give such consents or approvals or (y) the entry of any such
judgment, injunction, order or decree, in court or through other applicable
proceedings; (B) each of the Parties shall have the option, in its sole discretion, to
extend the Termination Date for an additional period of time, not to exceed 90 days if all
other conditions to Closing (other than the condition described in the preceding clause (A)
to the extent applicable) are satisfied or capable of being satisfied and the sole reason
(other than the condition described in the preceding clause (A) to the extent applicable)
that the Closing has not occurred by such date is that the condition set forth in Section
7.01(a)(ii) has not been satisfied due to the existence of material legal proceedings; and
(C) the right to terminate this Agreement pursuant to this Section 8.01(b)(i) shall not be
available to any Party whose breach of any provision of this Agreement has been the cause
of, or resulted in, the failure of the Closing to occur by the Termination Date; or

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     (ii) if any court of competent jurisdiction in the United States or other United States
Governmental Authority shall have issued a final order, decree or ruling or taken any other
final action restraining, enjoining or otherwise prohibiting the consummation of the
transactions contemplated by this Agreement and such order, decree, ruling or other action
is or shall have become final and nonappealable, provided, that the Party seeking to
terminate this Agreement pursuant to this Section 8.01(b)(ii) shall have used commercially
reasonable efforts to prevent the entry of and to remove such order, decree, ruling or final
action;

     (c) by Buyer if there has been a material breach by Seller of any representation, warranty,
covenant or agreement contained in this Agreement which (x) would result in a failure of a
condition set forth in Section 7.02(a) or (b) and (y) if curable, cannot be cured prior to the
Termination Date or is not cured within 20 days following written notification of such breach or
longer period as may be reasonably necessary to cure such breach, but not to exceed 90 days in the
aggregate;

     (d) by Seller if there has been a material breach by Buyer of any representation, warranty,
covenant or agreement contained in this Agreement which (x) would result in a failure of a
condition set forth in Section 7.03(a) or (b) and (y) if curable cannot be cured prior to the
Termination Date or is not cured within 20 days following written notification of such breach or
longer period as may be reasonably necessary to cure such breach, but not to exceed 90 days in the
aggregate; and

     (e) by Seller, on or prior to the tenth (10th) Business Day after the occurrence of a
Specified Termination Event.

The Party desiring to terminate this Agreement pursuant to Section 8.01 (other than pursuant to
Section 8.01(a)) shall give notice of such termination to the other Party.

     Section 8.02 Effect of Termination. In the event of termination of this Agreement by either Seller or Buyer prior to the Closing
pursuant to the provisions of Section 8.01, this Agreement shall forthwith become void, and there
shall be no liability or further obligation on the part of Buyer or Seller or their respective
officers or directors (except pursuant to Section 6.01(b), Section 6.13, Section 6.16, this Section
8.02, Section 9.03, Section 9.04(a), Section 9.04(b), Section 9.04(d), Section 9.04(f), Section
10.04 and Section 10.05, all of which shall survive the termination); provided, that nothing in
this Section 8.02 shall relieve any Party from liability for any willful breach of this Agreement
by such Party prior to termination of this Agreement. Notwithstanding anything herein to the
contrary, in the event that this Agreement is terminated by Seller pursuant to and in accordance
with Section 8.01(e), Buyer shall pay to Seller an aggregate amount of $26,125,000 (the “Break-Up
Fee Payment”) and Seller agrees that the Break-Up Fee Payment shall be the sole and exclusive
remedy of Seller, its Affiliates, and its and their Representatives against the Buyer, its
Affiliates and its their Representatives related to this Agreement and the transactions
contemplated hereby in the event of a termination pursuant to Section 8.01(e).

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ARTICLE IX

INDEMNIFICATION

     Section 9.01 Survival. All representations, warranties, covenants and agreements contained herein, and the right to
commence any Claim with respect thereto, shall terminate upon the first anniversary of the Closing
Date, except that (a) the representations and warranties contained in the Excluded Sections,
Section 5.01 and Section 5.02 shall survive without limitation as to time, (b) the representations
and warranties contained in Section 4.11 and Section 4.12 shall survive until the 18 month
anniversary of the Closing Date, (c) the representations and warranties contained in Section 4.09
shall survive until the end of the period of the applicable statute of limitations (taking into
account extensions thereof) and (d) the covenants and agreements of the Parties contained herein
that by their terms are to be performed on or following the Closing Date (including covenants and
agreements in this Article IX, including Section 9.02(a)(iii), Section 9.02(a)(iv), and Section
9.02(a)(v)), shall survive the Closing Date and continue in effect in accordance with their terms;
provided, that in the event written notice of any Claim for indemnification under Section
9.02(a)(i), Section 9.02(a)(ii), Section 9.02(b)(i), or Section 9.02(b)(ii) shall have been given
in accordance herewith within the applicable survival period setting forth such Claim in reasonable
detail (including, to the extent known, a reasonable specification of the legal and factual basis
for such Claim and the Loss suffered or incurred), the representations, warranties, covenants and
agreements that are the subject of such indemnification Claim shall survive with respect to that
Claim until such time as the Claim is fully and finally resolved. Without limiting the generality
of the foregoing, in the event that notice of a Third-Party Claim has been asserted by an
Indemnified Party prior to the expiration of the applicable survival period and otherwise in
accordance with this Agreement, the obligation of the Indemnifying Party to indemnify with respect
to any Losses with respect to the matter set forth in such Third-Party Claim was made shall survive
notwithstanding termination of the survival period and shall include the obligation to indemnify
for Losses with respect to the matter set forth in such Third-Party Claim was made that were
suffered both before and after expiration of the applicable survival period and that are otherwise
indemnifiable under this Agreement.

     Section 9.02 Indemnification.

     (a) Subject to the provisions of this Article IX, from and after the Closing, Seller shall
indemnify and hold the Buyer Indemnified Group harmless from and against any and all Losses,
whether arising out of contract, tort, strict liability, other Law or otherwise, incurred or
suffered by any of them to the extent arising out of or resulting from:

     (i) any breach as of the Execution Date and/or Closing Date of a representation or
warranty made by Seller herein or in any certificate delivered pursuant to this Agreement;

     (ii) any breach of any covenant or agreement of Seller herein (other than its
obligations under the first sentence of Section 6.22(c) to the extent relating to the
Subsequent Financial Statements);

46

 

     (iii) the business or operations of any current, former or future Non-Company Affiliate
(including the Seller and the Guarantor), whenever and wherever conducted (other than to the
extent directly attributable to the business of the Companies conducted at the Facilities);

     (iv) the Excluded Assets;

     (v) the Seller Environmental Liabilities; and

     (vi) if the certificate of insurance described in Section 2.04(h) is not delivered at
or prior to the Closing for the Cleanup Cost Cap insurance policy issued by C&I Commerce and
Industry Insurance Company, claims that would be recoverable by Buyer under such policy if
Buyer were a named insured under such policy.

     Notwithstanding anything to the contrary in this Agreement, Seller shall not be liable for any
Losses with respect to the matters set forth in Section 9.02(a)(i) (other than Losses arising out
of or resulting from a breach of any of the representations and warranties made in the Excluded
Sections) or Section 9.02(a)(ii) unless (x) a Claim is timely asserted during the survival period
specified in Section 9.01, (y) the Loss with respect to the particular act, circumstance,
development, event, fact, occurrence or omission exceeds $100,000 (aggregating all Losses arising
from substantially identical facts) and (z) the aggregate of all Losses under Section 9.02(a)(i)
and Section 9.02(a)(ii) exceeds, on a cumulative basis, 1.5% of the Final Purchase Price (and then
only to the extent of such excess); provided, that for purposes of determining whether such
deductible has been attained, all qualifications as to “material,” “materiality,” “Material Adverse
Effect” or similar exception or qualifier contained in a representation shall be disregarded.
Notwithstanding anything to the contrary in this Agreement, (A) the aggregate liability of Seller
to the Buyer Indemnified Group arising under or related to the matters set forth in Section
9.02(a)(i) (other than Losses arising out of or relating to a breach of the Excluded Sections) and
Section 9.02(a)(ii) (to the extent arising out or relating to a breach of the Included Covenants),
whether based in contract, tort, strict liability, other Law or otherwise, shall not exceed 50% of
the Final Purchase Price, (B) Seller shall have no liability to the Buyer Indemnified Group arising
under or relating to this Agreement to the extent the Buyer Indemnified Group has recovered the
applicable Losses from Guarantor, and (C) the limitations on indemnification set forth in this
paragraph shall not apply to the matters set forth in Section
9.02(a)(i) to the extent relating to the representations and warranties made in the Excluded
Sections, the matters set forth in Section 9.02(a)(ii) (except solely to the extent relating to an
Included Covenant), or the matters set forth in Section 9.02(a)(iii), Section 9.02(a)(iv), Section
9.02(a)(v) or Section 9.02(a)(vi). Notwithstanding anything herein to the contrary, the aggregate
liability of Seller to the Buyer Indemnified Group arising under or related to all matters set
forth in this Agreement (including those otherwise subject to clause (A) foregoing), whether based
in contract, tort, strict liability, other Law or otherwise, shall not exceed 100% of the Final
Purchase Price. Notwithstanding anything herein to the contrary, Seller’s indemnification
obligation under Section 9.02(a)(vi) shall terminate upon the earlier to occur of (i) the delivery
of the certificate of insurance for such policy described in Section 2.04(h) and Buyer and the
Companies being effectively named as the named insureds under such policy and (ii) the expiration
of the term of such policy.

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     (b) Subject to the provisions of this Article IX, from and after the Closing, Buyer hereby
agrees to indemnify and hold the Seller Indemnified Group harmless from and against any and all
Losses, whether arising out of contract, tort, strict liability, other Law or otherwise, actually
incurred by any of them to the extent arising out of or resulting from:

     (i) any breach as of the Execution Date or the Closing Date of a representation or
warranty made by Buyer herein;

     (ii) any breach of any covenant or agreement of Buyer herein;

     (iii) the status of any of the Non-Company Affiliates as former partners of Astoria LP,
whether attributable to the ownership or operation of the Purchased Assets and the Companies
before or after the Closing Date, regardless of when the applicable Claims are asserted;

     (iv) any of the matters listed on Schedule 4.06 (other than such matters which
are also listed on Schedule 6.06), whether attributable to the ownership or
operation of the Purchased Assets and the Companies before or after the Closing Date,
regardless of when the applicable Claims are asserted;

     (v) except to the extent arising out of resulting from (A) a breach by Seller of the
representations and warranties set forth in Section 4.12, (B) the Seller Environmental
Liabilities or (C) indemnification claims recoverable pursuant to Section 9.02(a)(vi),
Environmental Laws or any environmental conditions to the extent relating to the Purchased
Assets or the Companies, whether attributable to the ownership or operation of the Purchased
Assets and the Companies before or after the Closing Date, regardless of when the applicable
Claims are asserted;

     (vi) except to the extent attributable to breaches of such Contracts by the Seller
Indemnified Group before the Closing, any of the Assigned Contracts or the Iroquois
Contract, whether attributable to the ownership or operation of the Purchased Assets and the
Companies before or after the Closing Date, regardless of when the applicable Claims are
asserted; and

     (vii) in the event the Gunderboom Contract is not assigned to Buyer, any breach by
Astoria LP of the Gunderboom Contract, attributable to the ownership or operation of the
Purchased Assets and the Companies after the Closing Date, regardless of when the applicable
Claims are asserted.

     Notwithstanding anything to the contrary in this Agreement, Buyer shall not be liable (A) for
any Losses with respect to the matters set forth in Section 9.02(b)(i) or Section 9.02(b)(ii)
unless a Claim is timely asserted during the survival period specified in Section 9.01 and (B) to
the extent that the Losses for which the Seller Indemnified Party is seeking indemnification is a
matter for which Seller has agreed to be responsible pursuant to this Agreement or for which a
Buyer Indemnified Party is entitled to indemnification under this Agreement.

     (c) THE PARTIES INTEND AND AGREE THAT THE INDEMNITY OBLIGATIONS SET FORTH IN THIS SECTION 9.02
ARE INTENDED TO AND

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SHALL EXTEND TO AND COVER ANY AND ALL LOSSES RESULTING FROM OR CAUSED IN WHOLE
OR IN PART BY ANY ACTIVE, PASSIVE, AFFIRMATIVE, SOLE, CONCURRENT OR OTHER NEGLIGENCE, STRICT
LIABILITY OR OTHER FAULT OF, REGARDLESS OF WHETHER SUCH LOSSES RESULT FROM OR ARE CAUSED IN WHOLE
OR IN PART BY ANY ALLEGED OR ACTUAL NEGLIGENCE OR OTHER FAULT OF, (I) ANY OF BUYER INDEMNIFIED
PARTIES WITH RESPECT TO SECTION 9.02(a), AND (II) ANY OF THE SELLER INDEMNIFIED PARTIES WITH
RESPECT TO SECTION 9.02(b).

     Section 9.03 Waiver of Other Representations.

     (a) NOTWITHSTANDING ANYTHING IN THIS AGREEMENT TO THE CONTRARY, IT IS THE EXPLICIT INTENT OF
EACH PARTY HERETO, AND THE PARTIES HEREBY AGREE, THAT NO PARTY OR ANY OF ITS AFFILIATES OR
REPRESENTATIVES HAS MADE OR IS MAKING ANY REPRESENTATION OR WARRANTY WHATSOEVER, EXPRESS OR
IMPLIED, WRITTEN OR ORAL, INCLUDING ANY IMPLIED REPRESENTATION OR WARRANTY AS TO THE CONDITION,
MERCHANTABILITY, USAGE, SUITABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE WITH RESPECT TO THE
COMPANY INTERESTS, THE COMPANIES OR ANY OF THE PURCHASED ASSETS, OR ANY PART THEREOF, EXCEPT THOSE
EXPRESS REPRESENTATIONS AND WARRANTIES CONTAINED IN THIS AGREEMENT. IN PARTICULAR, AND WITHOUT IN
ANY WAY LIMITING THE FOREGOING, (I) SELLER MAKES NO REPRESENTATION OR WARRANTY REGARDING ANY
ENVIRONMENTAL MATTERS EXCEPT AS EXPRESSLY SET FORTH IN SECTION 4.12, (II) SELLER MAKES NO
REPRESENTATION OR WARRANTY TO BUYER WITH RESPECT TO ANY FINANCIAL PROJECTIONS OR FORECASTS RELATING
TO THE COMPANIES OR THE PURCHASED ASSETS, AND (III) SELLER MAKES NO REPRESENTATION OR WARRANTY TO
BUYER WITH RESPECT TO INFORMATION PROVIDED TO BUYER IN RESPONSE TO QUESTIONS PRESENTED BY BUYER OR
OTHER INFORMATION PROVIDED TO BUYER RELATING TO THE COMPANIES OR THE PURCHASED ASSETS; PROVIDED,
THAT THIS SENTENCE
SHALL NOT LIMIT THE EXPRESS REPRESENTATIONS, WARRANTIES, COVENANTS AND AGREEMENTS (INCLUDING
INDEMNITIES) CONTAINED IN THIS AGREEMENT.

     (b) EXCEPT FOR THOSE EXPRESS REPRESENTATIONS, WARRANTIES, COVENANTS AND AGREEMENTS (INCLUDING
INDEMNITIES) CONTAINED IN THIS AGREEMENT, SELLER’S INTERESTS IN THE COMPANIES ARE BEING TRANSFERRED
THROUGH THE SALE OF THE COMPANY INTERESTS “AS IS, WHERE IS, WITH ALL FAULTS,” AND SELLER EXPRESSLY
DISCLAIMS ANY REPRESENTATIONS OR WARRANTIES OF ANY KIND OR NATURE, EXPRESS OR IMPLIED, AS TO THE
CONDITION, VALUE OR QUALITY OF THE COMPANIES AND THE PURCHASED ASSETS OR THE PROSPECTS (FINANCIAL
OR OTHERWISE), RISKS AND OTHER INCIDENTS OF THE COMPANIES AND THE PURCHASED ASSETS.

     (c) BUYER ACKNOWLEDGES THAT IT HAS INVESTIGATED TO ITS SATISFACTION, THE CONDITION AND
SUITABILITY OF THE PURCHASED ASSETS AND ALL MATTERS AFFECTING THE VALUE OR DESIRABILITY OF

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THE
PURCHASED ASSETS, INCLUDING, BUT NOT LIMITED TO, THE OPERATIONAL ASPECTS OF SUCH PURCHASED ASSETS,
POTENTIAL ENVIRONMENTAL HAZARDS ARISING FROM THE PRESENCE ON OR ABOUT THE PROPERTY OF HAZARDOUS
SUBSTANCES, INCLUDING ASBESTOS, FORMALDEHYDE, RADON GAS, LEAD-BASED PAINT, OTHER LEAD
CONTAMINATION, FUEL OR CHEMICAL STORAGE TANKS, CAVERNS, PIPELINES, ELECTROMAGNETIC FIELDS,
PHOSPHO-GYPSUM OR POLYCHLORINATED BIPHENYLS. EXCEPT AS EXPRESSLY PROVIDED HEREIN, NEITHER SELLER,
NOR ITS AFFILIATES MAKES OR HAS MADE ANY REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESS OR
IMPLIED, WRITTEN OR ORAL, AS TO THE PHYSICAL CONDITION OF THE PURCHASED ASSETS, THE USES OF THE
PURCHASED ASSETS OR ANY LIMITATIONS THEREON, THE INCOME TO BE DERIVED THEREFROM, THE COSTS OF
OPERATION, COMPLIANCE WITH LAW, AND/OR ANY REQUIREMENTS FOR ALTERATIONS OR IMPROVEMENTS TO COMPLY
WITH LAW, INCLUDING ANY REPRESENTATIONS OR WARRANTIES PERTAINING TO ZONING, ENVIRONMENTAL OR OTHER
LAW; THE UTILITIES, PIPELINES OR OTHER PHYSICAL EQUIPMENT AND FIXTURES ON THE PROPERTY, OR ANY
OTHER ASPECT OF THE ECONOMIC OPERATIONS ON THE PROPERTY; THE CONDITIONS OF THE SOILS, WATER OR
GROUNDWATER OF, OR IN THE VICINITY OF, THE PROPERTY; THE PRESENCE OR ABSENCE OF ELECTROMAGNETIC
FIELDS, TOXIC MATERIALS OR HAZARDOUS SUBSTANCES ON OR UNDER THE PROPERTY OR IN THE VICINITY OF SUCH
PROPERTY; OR ANY OTHER MATTER BEARING ON THE USE, VALUE OR CONDITION OF THE PURCHASED ASSETS.
NOTHING IN THIS SECTION 9.03(C) SHALL BE CONSTRUED TO LIMIT, EITHER DIRECTLY OR INDIRECTLY, ANY
CLAIM BY A MEMBER OF THE BUYER INDEMNIFIED GROUP FOR BREACH OF, OR INDEMNIFICATION UNDER, THIS
AGREEMENT.

     Section 9.04 Waiver of Remedies; Certain Limitations. Notwithstanding anything in this Agreement to the contrary:

     (a) the Parties hereby agree that, except for actual fraud, neither Party shall have any
liability, and neither Party shall make any Claim, for any Loss or other matter, under, relating to
or arising out of this Agreement or any other document, agreement, certificate or other matter
delivered pursuant hereto, whether arising out of contract, tort, strict liability, other Law or
otherwise, except as expressly set forth in Section 6.01(b), Section 6.10(f), Section 8.01, Section
8.02, Section 10.05 and this Article IX. The Parties agree that irreparable damage would occur in
the event any of the provisions of this Agreement were not to be performed in accordance with the
terms hereof and that the Parties shall be entitled to specific performance of the terms hereof in
addition to any other remedies at Law or in equity; provided that in no event shall this
specific performance provision be construed to require Buyer to accept debt financing on terms less
favorable to Buyer than those specified in the Debt Commitment Letter or other terms reasonably
satisfactory to Buyer or to require acceptance by Buyer or its Affiliates of more equity financing
than specified in the Equity Commitment Letter;

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     (b) NO PARTY SHALL BE LIABLE FOR SPECIAL, PUNITIVE, EXEMPLARY, INCIDENTAL, CONSEQUENTIAL OR
INDIRECT DAMAGES OR LOST PROFITS, WHETHER BASED ON CONTRACT, TORT, STRICT LIABILITY, OTHER LAW OR
OTHERWISE AND WHETHER OR NOT ARISING FROM THE OTHER PARTY’S SOLE, JOINT OR CONCURRENT NEGLIGENCE,
STRICT LIABILITY OR OTHER FAULT, EXCEPT SUCH DAMAGES THAT ARE PAYABLE TO A THIRD PARTY WITH RESPECT
TO A THIRD PARTY CLAIM FOR WHICH ANY PERSON IS SEEKING INDEMNIFICATION HEREUNDER;

     (c) in calculating any amount of Losses recoverable pursuant to Section 9.02(a) or Section
9.02(b), the amount of such Losses shall be reduced by (i) any insurance proceeds actually received
relating to such Loss, net of any related deductible and any expenses to obtain such proceeds, (ii)
any recoveries from third parties pursuant to indemnification (or otherwise) with respect thereto,
net of any expenses incurred by the Indemnified Party in obtaining such third party payment and
(iii) the amount of any net Tax benefit resulting from the incurrence or payment of such Losses.
The Parties agree to treat any indemnification payment pursuant to this Article IX as an adjustment
to the Final Purchase Price for all Tax purposes unless otherwise required by applicable Law;

     (d) no Representative or Affiliate of Seller shall have any personal liability to Buyer or any
other Person as a result of the breach of any representation, warranty, covenant, agreement or
obligation of Seller in this Agreement and no Representative or Affiliate of Buyer shall have any
personal liability to Seller or any other Person as a result of the breach of any representation,
warranty, covenant, agreement or obligation of Buyer in this Agreement;

     (e) no Person shall be entitled to indemnification under this Article IX if, the party from
whom indemnification is sought can demonstrate that on the Closing Date, such Person seeking
indemnification had Knowledge of the breach of representation, warranty, covenant or agreement with
respect to which such Person is seeking indemnification under this Article IX; provided, if such
Person seeking indemnification is informed by the other Party or its Representatives after the
Execution Date of such other Party’s breach that existed on the
Execution Date, the informed Person and its Affiliates shall not be precluded as a result of
this Section 9.04(e) from seeking indemnification under this Article IX for breach as of the
Execution Date. Buyer shall promptly notify Seller of any breach of any representation, warranty,
covenant or agreement of Seller or Buyer made hereunder of which Buyer has Knowledge;

     (f) each Party shall have a duty to use commercially reasonable efforts to mitigate any Loss
suffered by such Party in connection with this Agreement in accordance with, and to the extent
required under, applicable Law; provided, that the failure of a Party to mitigate any Losses shall
not relieve an indemnifying Party of its indemnification obligations hereunder with respect to such
Losses except to the extent such indemnifying Party shall have been prejudiced by such failure;

     (g) Seller shall have no liability for any Losses that represent the cost of repairs,
replacements or improvements which enhance the value of the repaired, replaced or improved

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asset
above its value on the Closing Date or which represent the cost of repair or replacement exceeding
the reasonable cost of repair or replacement;

     (h) except for its contractual rights under this Agreement, and except for claims for actual
fraud, Buyer hereby releases, waives and discharges forever Seller and the Non-Company Affiliates
from all present and future Claims and from all Losses, present and future, that are or may be
attributable to the matters described in Section 9.02(b), including cost recovery or contribution
actions pursuant to Environmental Law;

     (i) Seller shall have no liability for any Losses for any particular matter for which a claim
for indemnification has been asserted to the extent the Losses with respect to such matter are
included as a liability in the computation of Closing Date Working Capital Amount and such Losses
exceed the liability for such matter included in the June 30 Balance Sheets; and

     (j) Effective as of the Closing Date, Seller, on behalf of itself and each Non-Company
Affiliate, hereby waives, releases and discharges the Companies and each of their Affiliates from
any and all Losses of any kind or nature whatsoever (including, without limitation, in respect of
rights of contribution and indemnification), in each case whether absolute or contingent,
liquidated or unliquidated, known or unknown, and whether arising under any agreement or
understanding or otherwise at law or equity, and Seller shall not seek to recover any amounts in
connection therewith or thereunder from Buyer, the Companies or any of their respective Affiliates;
provided, however, such waiver shall not in any manner restrict, limit, extinguish or otherwise
adversely affect Seller’s rights under this Agreement or the rights of Seller to be paid the RES
Payable to the extent accrued as current liability in the computation of Closing Date Working
Capital Amount. Without limiting the generality of the foregoing, Seller acknowledges and agrees
that upon and after the Closing, neither of the Companies shall have any liability or obligation to
indemnify, hold harmless or otherwise pay, reimburse or make Seller or any Non-Company Affiliate
whole for or on account of any indemnification claim by a member of the Buyer Indemnified Group for
any breach of any representation, warranty, covenant or agreement of Seller contained in this
Agreement and neither Seller nor any Non-Company Affiliate shall have any right of indemnification,
contribution or subrogation against the Companies or Buyer. Seller shall indemnify and hold each
member of the Buyer
Indemnified Group harmless for any Losses suffered by any member of the Buyer Indemnified
Group as a result of any Non-Company Affiliate making a claim or defense released by Seller
hereunder.

     Section 9.05 Procedures for Indemnification.

     (a) Whenever a Claim shall arise for indemnification resulting from or in connection with a
Claim by a third party (a “Third-Party Claim”) (other than under Section 9.02(b)(iv)), the Person
entitled to indemnification (the “Indemnified Party”) shall promptly notify the Party from which
indemnification is sought (the “Indemnifying Party”) of such Claim and, when known, the facts
constituting the basis of such Claim; provided, that failure to notify the Indemnifying Party shall
not relieve the Indemnifying Party of any liability it may have to the Indemnified Party, except to
the extent that the Indemnifying Party has been materially prejudiced by such failure. Following
receipt of notice of any such Third-Party Claim, and unless (i) the assumption of such defense by
the Indemnifying Party would be inappropriate due

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to a conflict of interest, (ii) such Third-Party
Claim (or the facts or allegations related to such Third-Party Claim) involves criminal allegations
or seeks equitable or injunctive relief, (iii) the Indemnifying Party does not have the resources
to satisfy such Third-Party Claim or (iv) such Third-Party Claim, if adversely determined, could
reasonably be expected to materially adversely affect the business or reputation of the Indemnified
Party or its Affiliates, the Indemnifying Party shall have the option, at its cost and expense, to
assume the defense of such Third-Party Claim and to retain counsel (not reasonably objected to by
the Indemnified Party) to defend any such claim or legal proceeding, and the Indemnifying Party
shall not be liable to the Indemnified Party for any fees of other counsel or any other expenses
(except as expressly provided to the contrary herein) with respect to the defense of such Claim,
other than reasonable fees and expenses of counsel employed by the Indemnified Party for any period
during which the Indemnifying Party has not assumed the defense thereof. The Indemnified Party
shall have the option of joining the defense of such Claim (which shall be at the sole cost and
expense of the Indemnified Party) with counsel not reasonably objected to by the Indemnifying Party
and counsel for each party shall, to the extent consistent with such counsel’s professional
responsibilities, cooperate with the other party and any counsel designated by that party. In
effecting the settlement or compromise of, or consenting to the entry of any judgment with respect
to, any such Third-Party Claim with respect to which the Indemnifying Party has assumed the defense
in accordance with this Section 9.05(a), the Indemnifying Party, or the Indemnified Party, as the
case may be, shall act in good faith, shall consult with the other party and shall enter into only
such settlement or compromise or consent to the entry of any judgment as the other party shall
consent, such consent not to be unreasonably withheld, conditioned or delayed. An Indemnifying
Party shall not be liable for any settlement, compromise or judgment not made in accordance with
the preceding sentence.

     (b) Buyer shall promptly and diligently defend, prosecute or settle the matters described in
Section 9.02(b)(iv) (including the defense of any members of the Seller Indemnified Group that are
defendants or respondents with respect to such matters). If Buyer’s counsel shall have advised
Buyer in writing, in which case Buyer shall deliver a copy to the Indemnified Party, or if the
Indemnified Party reasonably believes, that there is a conflict of interest that could make
it inappropriate under applicable standards of professional conduct to have common counsel,
the Indemnified Party may retain its own counsel with respect to such defense and Buyer shall pay
the reasonable attorneys’ fees and expenses of counsel for such Indemnified Party. Buyer shall
obtain the prior written consent of the Indemnified Party, which consent shall not be unreasonably
withheld, delayed or conditioned, before entering into or making (or allowing the Companies to
enter into or make) any settlement or compromise of the matters described in Section 9.02(b)(iv) if
(i) such settlement or compromise does not include a full release of the Indemnified Party, (ii)
such settlement or compromise includes any non-monetary remedy binding on the Indemnified Party or
(iii) the Indemnified Party reasonably believes that Buyer will not have the ability to satisfy
fully its obligations pursuant to Section 9.02(b)(iv) at the time of such settlement or compromise.

     (c) After the Closing Date, Seller and Buyer shall grant each other (or their respective
designees), and Buyer shall cause the Companies to grant to Seller (or its designees), access at
all reasonable times to all of the information, books and records relating to the Companies in its
possession, and shall afford such party the right (at such party’s expense) to take extracts
therefrom and to make copies thereof, to the extent reasonably necessary to implement the

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provisions of, or to investigate or defend any Third-Party Claims; provided that no such party
shall be entitled to make available any information, books or records, the disclosure of which
would cause a waiver of any applicable privilege or breach of an obligation of confidentiality to a
third-party and either party may make access to such information, books and records conditioned
upon execution and delivery of a confidentiality agreement reasonably satisfactory to the party
requesting disclosure. Further, after the Closing, Buyer shall cause the Companies to grant to
Seller (or its designees) the access and right to take extracts and make copies described in the
preceding sentence for such other purposes as may be reasonably requested by Seller.

ARTICLE X

MISCELLANEOUS

     Section 10.01 Notices. All notices and other communications hereunder shall be in writing and shall be deemed given if
delivered personally to, or mailed by registered or certified mail (return receipt requested) if
and when received by, or sent via facsimile if and when received by, the Parties at the following
addresses (or at such other address for a Party as shall be specified by like notice):

          If to Seller, to:

          Orion Power Holdings, Inc.

          1000 Main Street, 12th Floor

          Houston, Texas 77002

          Attention: General Counsel

          Facsimile: 713-537-7465

          If to Buyer, to:

          c/o Madison Dearborn Capital Partners IV, L.P.

          Three First National Plaza

          70 W. Madison

          Suite 3800

          Chicago, IL 60602

          Attention: Thomas S. Souleles and Patrick C. Eilers

          Facsimile: 312-895-1001

          And

          US Power Generating Co., LLC

          400 Madison Avenue

          New York, NY 10017

          Attention: Jacob Worenklein

          Facsimile: 212-223-8295

          And

          Kirkland & Ellis LLP

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          655 15th Street, N.W.

          Washington, D.C. 20005

          Attention: Mitchell F. Hertz

          Facsimile: 202-879-5200

     Section 10.02 Headings. The headings contained in this Agreement are for reference purposes only and shall not affect in
any way the meaning or interpretation of this Agreement.

     Section 10.03 Assignment. This Agreement (including the documents and instruments referred to herein) shall not be
assigned, except that Buyer may (i) assign its rights and obligations under this Agreement in whole
or in part to any one or more direct or indirect Affiliates of Buyer, (ii) assign its rights in
whole or in part to its financing sources as collateral security, but no such assignment pursuant
to (i) or (ii) shall relieve Buyer of its obligations hereunder, and (iii) assign all of its rights
and obligations pursuant to Section 6.05(d). Without limiting the generality of the foregoing,
Buyer may, effective as of the Closing, but without relieving Buyer of its obligations hereunder,
designate the Companies to assume, perform and/or pay any of its liabilities and obligations
required to be assumed, paid or performed by Buyer hereunder at or after the Closing and any
performance or payment by either of the Companies shall be deemed to satisfy any performance or
payment obligations of Buyer hereunder. This Agreement shall be binding upon and inure to the
benefit of the parties hereto and their respective successors and permitted assigns.

     Section 10.04 Governing Law. THIS AGREEMENT SHALL BE GOVERNED IN ALL RESPECTS, INCLUDING VALIDITY, INTERPRETATION AND EFFECT,
BY THE LAWS OF THE STATE OF NEW YORK (WITHOUT GIVING EFFECT TO ANY CONFLICT OF LAWS PRINCIPLES
OTHER THAN SECTION 5-1401 OF THE GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK).

     Section 10.05 Arbitration.

     (a) EXCEPT AS OTHERWISE EXPRESSLY PROVIDED HEREIN, ANY DISPUTE OR NEED OF INTERPRETATION
ARISING OUT OF THIS AGREEMENT SHALL BE SETTLED BY BINDING ARBITRATION IN ACCORDANCE WITH THE THEN
CURRENT CENTER FOR PUBLIC RESOURCES RULES FOR NON-ADMINISTERED ARBITRATION IN EFFECT ON THE DATE OF
THIS AGREEMENT (“CPR RULES”) BY THREE ARBITRATORS WHO HAVE NOT PREVIOUSLY BEEN EMPLOYED BY EITHER
PARTY, AND WHO DO NOT HAVE A DIRECT OR INDIRECT INTEREST IN EITHER PARTY OR THE SUBJECT MATTER OF
THE ARBITRATION. EACH PARTY SHALL SELECT ONE ARBITRATOR AND THE CENTER FOR PUBLIC RESOURCES SHALL
SELECT ONE ARBITRATOR, ALL IN ACCORDANCE WITH THE “SCREENED” APPOINTMENT PROCEDURES SET FORTH IN
THE CPR RULES. UNLESS BOTH PARTIES AGREE OTHERWISE, ALL ARBITRATORS SHALL BE SELECTED FROM THE CPR
NATIONAL PANEL OF DISTINGUISHED NEUTRALS. EITHER PARTY MAY INITIATE ARBITRATION BY WRITTEN DEMAND
TO THE OTHER PARTY AND THE ARBITRATION SHALL BE CONDUCTED ACCORDING TO THE FOLLOWING: (i) EACH
PARTY SHALL DIVIDE EQUALLY THE COST OF THE ARBITRATORS AND THE HEARING AND EACH PARTY SHALL BE
RESPONSIBLE FOR ITS OWN EXPENSES

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AND THOSE OF ITS COUNSEL AND REPRESENTATIVES; (ii) EVIDENCE
CONCERNING THE FINANCIAL POSITION OF THE PARTIES, ANY OFFER MADE OR THE DETAILS OF ANY NEGOTIATION
PRIOR TO ARBITRATION AND THE COST TO THE PARTIES OF THEIR REPRESENTATIVES AND COUNSEL SHALL NOT BE
PERMISSIBLE; (iii) THE ARBITRATION SHALL BE GOVERNED BY THE SUBSTANTIVE LAWS OF NEW YORK, WITHOUT
REGARD TO CONFLICTS OF LAW RULES, AND BY THE FEDERAL ARBITRATION ACT, 9 U.S.C. 1-16 TO THE
EXCLUSION OF STATE LAWS INCONSISTENT THEREWITH, AND JUDGMENT UPON THE AWARD RENDERED BY THE
ARBITRATORS MAY BE ENTERED BY ANY COURT HAVING JURISDICTION THEREOF; (iv) UNLESS THE PARTIES
OTHERWISE AGREE, THE ARBITRATION HEARING SHALL TAKE PLACE IN NEW YORK, NEW YORK, OR AT SOME OTHER
MUTUALLY AGREEABLE LOCATION AND THE HEARING SHALL TAKE PLACE WITHIN FOUR (4) MONTHS FROM THE DATE
OF DEMAND FOR ARBITRATION; (v) THE PARTIES SHALL BE PERMITTED TO ENGAGE IN DOCUMENT AND DEPOSITION
DISCOVERY, THE EXTENT OF WHICH SHALL BE DETERMINED BY THE ARBITRATORS; (vi) THE PARTIES EXPRESSLY
AGREE THAT THE ARBITRATORS SHALL REACH A DECISION IN COMPLIANCE WITH APPLICABLE LAW AND THIS
AGREEMENT SHALL CONFER NO POWER OR AUTHORITY UPON THE ARBITRATORS TO RENDER ANY JUDGMENT OR AWARD
THAT IS ERRONEOUS IN ITS APPLICATION OF SUBSTANTIVE LAW AND
EXPRESSLY AGREE THAT NO SUCH ERRONEOUS JUDGMENT OR AWARD SHALL BE ELIGIBLE FOR CONFIRMATION;
(vii) THE ARBITRATORS SHALL HAVE THE AUTHORITY TO DISPOSE OF A MATTER IN SUMMARY FASHION, AND TO
GRANT INJUNCTIVE OR DECLARATORY RELIEF; (viii) THE ARBITRATORS SHALL SET FORTH IN WRITING AT THE
TIME THEY RENDER THEIR AWARD, THE DETAILED FINDINGS OF FACT AND CONCLUSIONS OF LAW UPON WHICH THEIR
AWARD IS BASED; (ix) UNLESS THE PARTIES OTHERWISE AGREE, THE ARBITRATION HEARINGS SHALL BE
CONTINUOUS SUBJECT TO WEEKENDS, HOLIDAYS, OR OTHER DAYS TO BE MUTUALLY AGREED AND THE TOTAL DAYS OF
HEARING SHALL NOT EXCEED TEN (10) HEARING DAYS PER PARTY; (x) THE ARBITRATORS ARE NOT EMPOWERED TO
AWARD DAMAGES IN EXCESS OF COMPENSATORY DAMAGES, AND EACH PARTY EXPRESSLY WAIVES AND FOREGOES ANY
RIGHT TO PUNITIVE, EXEMPLARY OR SIMILAR DAMAGES UNLESS A STATUTE REQUIRES THAT COMPENSATORY DAMAGES
BE INCREASED IN A SPECIFIED MANNER; (xi) THE ARBITRATORS SHALL COMPILE A RECORD OF ALL PROCEEDINGS
THAT INCLUDES ALL HEARINGS AND ALL EVIDENCE (INCLUDING, WITHOUT LIMITATION, EXHIBITS, DEPOSITION
TRANSCRIPTS, AND AFFIDAVITS ADMITTED INTO EVIDENCE) IN THE ARBITRATION PROCEEDING FROM WHICH THE
APPEAL IS TAKEN; AND (xii) THE ARBITRATORS SHALL RENDER THEIR AWARD NO LATER THAN THIRTY (30) DAYS
AFTER THE CONCLUSION OF THE HEARINGS. THE SUBMISSION OF POST-HEARING LEGAL BRIEFS SHALL BE SUBJECT
TO THE DISCRETION OF THE ARBITRATORS, BUT IN NO EVENT SHALL THE BRIEFS DELAY THE ARBITRATORS’
DECISION IN THIS MATTER. AN APPEAL MAY BE TAKEN UNDER THE CPR ARBITRATION APPEAL PROCEDURE FROM
ANY FINAL AWARD OF AN ARBITRAL PANEL IN ANY ARBITRATION ARISING OUT OF OR RELATED TO THIS AGREEMENT
THAT IS CONDUCTED IN ACCORDANCE WITH THE

56

 

REQUIREMENTS OF SUCH APPEAL PROCEDURE. THE STANDARD OF
REVIEW TO BE APPLIED TO THE ARBITRATORS’ FINDING OF FACT AND CONCLUSIONS OF LAW SHALL BE THE SAME
AS THAT APPLIED BY AN APPELLATE COURT REVIEWING A DECISION OF A TRIAL COURT SITTING WITHOUT A JURY.
UNLESS OTHERWISE AGREED BY THE PARTIES AND THE APPEAL TRIBUNAL, THE APPEAL SHALL BE CONDUCTED AT
THE PLACE OF THE ORIGINAL ARBITRATION. EXCEPT AS SET FORTH IN ARTICLE II AND EXCEPT FOR CLAIMS FOR
INJUNCTIVE OR OTHER EQUITABLE RELIEF, THE PROCEDURES SPECIFIED IN THIS SECTION 10.05 SHALL BE THE
SOLE AND EXCLUSIVE PROCEDURES FOR THE RESOLUTION OF DISPUTES BETWEEN THE PARTIES ARISING OUT OF OR
RELATING TO THIS AGREEMENT; PROVIDED, THAT A PARTY MAY FILE A COMPLAINT TO SEEK A PRELIMINARY
INJUNCTION OR OTHER PROVISIONAL JUDICIAL RELIEF, IF IN ITS SOLE JUDGMENT SUCH ACTION IS NECESSARY
TO PRESERVE THE STATUS QUO PENDING APPOINTMENT OF AN ARBITRATOR. DESPITE SUCH ACTION, THE PARTIES
WILL CONTINUE TO PARTICIPATE IN GOOD FAITH IN THE PROCEDURES SPECIFIED IN THIS SECTION 10.05. THE
PARTIES AGREE THIS CONSTITUTES A CONSPICUOUS LEGEND.

     (b) WITH RESPECT TO ANY ACTION PERMITTED BY THIS SECTION 10.05, THE PARTIES HEREBY IRREVOCABLY
SUBMIT TO THE NON-EXCLUSIVE JURISDICTION OF ANY STATE OR FEDERAL COURT IN NEW YORK, NEW YORK.

     Section 10.06 Counterparts. This Agreement may be executed in two or more counterparts, and by facsimile and/or electronic
transmission, each of which shall be deemed to be an original, but all of which shall constitute
one and the same agreement.

     Section 10.07 Amendments; Extensions.

     (a) This Agreement may not be amended except by an instrument in writing signed on behalf of
each of the Parties.

     (b) At any time a Party may (i) extend the time for the performance of any of the obligations
or other acts of the other Party, (ii) waive any inaccuracies in the representations and warranties
of the other Party contained herein or in any document delivered pursuant hereto and (iii) waive
compliance with any of the covenants or agreements of the other Party contained herein. Any
agreement on the part of a Party to any such extension or waiver shall be valid only if set forth
in a written instrument signed on behalf of such Party. The failure or delay of any Party to
assert any of its rights under this Agreement or otherwise shall not constitute a waiver of those
rights.

     Section 10.08 Entire Agreement. This Agreement, the Confidentiality Agreement and the other agreements contemplated hereby
constitute the entire agreement between the Parties with respect to the subject matter hereof and
supersede all prior agreements, understandings and negotiations, both written and oral, between the
Parties with respect to the subject matter of this Agreement. No representation, inducement,
promise, understanding, condition or warranty not set forth herein has been made or relied upon by
any Party. Neither this Agreement nor any provision hereof is intended to confer upon any person
other than the

57

 

parties hereto any rights or remedies hereunder except as expressly provided
otherwise in Section 6.01(b), Section 6.05, Section 6.10(d), Section 6.18 and Article IX.

     Section 10.09 Severability. If any term or other provision of this Agreement is invalid, illegal, or incapable of being
enforced by any rule of applicable Law, or public policy (including any term or provision of
Section 10.05), then such term or provision shall be severed from the remaining terms and
provisions of this Agreement (including the remaining terms and provisions of Section 10.05), and
such remaining terms and provisions shall nevertheless remain in full force and effect.

     Section 10.10 Guarantor Guaranty.

     (a) Guarantor is a party to this Agreement solely for the purposes of this Section 10.10. In
consideration of the transactions contemplated by this Agreement, the receipt and
sufficiency of which are hereby acknowledged, Guarantor hereby unconditionally and irrevocably
(i) guarantees payment and performance by Seller of the obligations of Seller under this Agreement,
subject to any defenses of Seller, but without any obligation by any Buyer Indemnified Party to
bring a claim against Seller before or at the same time as proceeding against Guarantor and (ii)
indemnifies each Buyer Indemnified Party for any Loss arising from any breach of any
representation, warranty, covenant or agreement of Guarantor made hereunder. Guarantor hereby
waives any and all rights of indemnification, contribution and subrogation against Buyer and the
Companies with respect to any and all Claims. In no event shall the aggregate liability of
Guarantor arising under or related to this Agreement and the transactions contemplated hereby,
whether based in contract, tort, strict liability, other Law or otherwise, exceed 100% of the Final
Purchase Price. Capitalized terms used in this Section 10.10 shall have the meanings given to them
in Appendix I to this Agreement. The provisions of Section 9.04(b) and the remaining Sections of
this Article X are incorporated in this Section 10.10, mutatis mutandis, except that notices and
other communications hereunder to Guarantor shall be delivered to:

     Reliant Energy, Inc.

     1000 Main Street, 12th Floor

     Houston, Texas 77002

     Attention: General Counsel

     Facsimile: (713) 537-7465

     (b) As a material inducement to Buyer to enter into this Agreement and consummate the
transactions contemplated hereby, Guarantor hereby represents and warrants to Buyer that (i)
Guarantor is a corporation duly organized, validly existing and in good standing under the laws of
the State of Delaware has full corporate power and authority to execute, deliver and perform this
Agreement, (ii) the execution, delivery and performance by Guarantor of this Agreement have been
duly authorized by all requisite corporate action on the part of Guarantor, (iii) this Agreement
has been duly executed and delivered by Guarantor and constitutes the valid and binding obligation
of Guarantor, enforceable against Guarantor in accordance with its terms, except as enforceability
may be limited by bankruptcy, insolvency, reorganization, arrangement, moratorium or other similar
Laws relating to creditors’ rights generally, and general equitable principles, (iv) the execution,
delivery and performance by Guarantor of this Agreement and the

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consummation of the transactions
contemplated hereby does not and will not (A) violate the Charter Documents of Guarantor; (B)
violate any Law applicable to Guarantor, or any order of any Governmental Authority having
jurisdiction over Guarantor, or (C) violate or conflict with, or constitute (with due notice or
lapse of time or both) a default under, any Contract by which Guarantor or any of its assets is
bound, and (v) no registration or filing with, or consent or approval of or other action by, any
Governmental Authority or any other Person is or will be necessary for the valid execution,
delivery and performance by Guarantor of its obligations under this Agreement.

59

 

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

	 	 	 	 	 	 	 	 	 
	 	 	ORION POWER HOLDINGS, INC.	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By:	 	/s/ David S. Frey Singer	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Name:	 	David S. Frey Singer	 	 
	 	 	 	 	 	 	 	 	 
	 

	 	 	 	Title:
	 	President
	 	 
	 

	 	 	 	 	 	 

	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	RELIANT ENERGY, INC.	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By:	 	/s/ Mark M. Jacobs	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Name:	 	Mark M. Jacobs	 	 
	 	 	 	 	 	 	 	 	 
	 

	 	 	 	Title:
	 	EVP & CFO
	 	 
	 

	 	 	 	 	 	 

	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	ASTORIA GENERATING COMPANY ACQUISITIONS, L.L.C.	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By:	 	/s/ Jacob Worenklein	 	 
	 	 	 	 	 	 	 
	 

	 	 	 	Name:	 	 	 	 
	 

	 	 	 	Title:
	 	 

	 	 
	 

	 	 	 	 	 	 

	 	 

SIGNATURE PAGE PURCHASE AND SALE AGREEMENT

60

 

APPENDIX I

SECTION 1 — CONSTRUCTION

     (a) All Article, Section, Subsection, Schedules and Exhibit references used in this Agreement
are to Articles, Sections, Subsections, Schedules and Exhibits to this Agreement unless otherwise
specified. The Exhibits and Schedules attached to this Agreement constitute a part of this
Agreement and are incorporated herein for all purposes.

     (b) If a term is defined as one part of speech (such as a noun), it shall have a corresponding
meaning when used as another part of speech (such as a verb). Unless the context of this Agreement
clearly requires otherwise, words importing the masculine gender shall include the feminine and
neutral genders and vice versa. The words “includes” or “including” shall mean “includes without
limitation” or “including without limitation,” the words “hereof,” “hereby,” “herein,” “hereunder”
and similar terms in this Agreement shall refer to this Agreement as a whole and not any particular
Section or Article in which such words appear and any reference to a Law shall include any
amendment thereof or any successor thereto and any rules and regulations promulgated thereunder.
Currency amounts referenced herein are in U.S. Dollars.

     (c) Time is of the essence in this Agreement. Whenever this Agreement refers to a number of
days, such number shall refer to calendar days unless Business Days are specified. Whenever any
action must be taken hereunder on or by a day that is not a Business Day, then such action may be
validly taken on or by the next day that is a Business Day.

     (d) Seller may, at its option, include in the Schedules items that are not material, and any
such inclusion, or any references to dollar amounts, shall not be deemed to be an acknowledgment or
representation that such items are material or would cause a Material Adverse Effect, to establish
any standard of materiality or to define further the meaning of such terms for purposes of this
Agreement. Information disclosed in the Schedules shall constitute a disclosure for all purposes
of the Section for which such disclosure was made and each other section for which such disclosure
is readily apparent. Seller may, at any time on or prior to the fifth Business Day prior to
Closing, amend the Seller’s Disclosure Schedules (to the extent qualifying Article III and Article
IV of this Agreement) after the Execution Date with respect to matters of which Seller had no
Knowledge at the Execution Date, and the representations and warranties shall be deemed to
incorporate such amendments for purposes of determining whether a breach of such representations or
warranties existed at the Closing Date; provided that no such update to the Seller’s Disclosure
Schedules shall be taken into account in determining satisfaction of the conditions specified in
Section 7.02(b) and no such update shall be taken into account in determining whether a breach of
such representations and warranties existed as of the Execution Date. For the avoidance of doubt,
the reference to Seller’s Disclosure Schedule in the prefatory paragraph to each of Article III and
Article IV shall not, for purposes of the representations and warranties made in Article III and
Article IV as of the Execution Date, include updates to the Seller’s Disclosure Schedules made
after the Execution Date.

     (e) Each Party acknowledges that it and its attorneys have been given an equal opportunity to
negotiate the terms and conditions of this Agreement and that any rule of

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construction to the effect that ambiguities are to be resolved against the drafting Party or
any similar rule operating against the drafter of an agreement shall not be applicable to the
construction or interpretation of this Agreement.

     (f) Each provision of this Agreement is to be given independent significance. No application
of the adjustments to Base Purchase Price pursuant to the provisions of Article II of this
Agreement shall preclude, restrict or otherwise adversely affect any of the parties’ respective
rights to indemnification under this Agreement, including as may arise from a claim for breach of
express representation or warranty under this Agreement.

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SECTION 2 — DEFINITIONS

     “1933 Act” has the meaning set forth in Section 5.07.

     “Agreement” has the meaning set forth in the introductory paragraph to this Agreement.

     “Affiliate” means any Person that directly, or indirectly through one or more intermediaries,
controls, is controlled by or is under common control with the Person specified. For purposes of
this definition, control of a Person means the power, direct or indirect, to direct or cause the
direction of the management and policies of such Person whether through ownership of voting
securities or ownership interests, by contract or otherwise, and specifically with respect to a
corporation, partnership, trust or limited liability company, shall include direct or indirect
ownership of more than 50% of the voting securities in such corporation or of the voting interest
in a partnership or limited liability company or of the beneficial interest in a trust.

     “Affiliate Employee” has the meaning set forth in Section 6.14(c).

     “Affiliated Group” means any affiliated group within the meaning of Code §1504(a) or any
similar group defined under a similar provision of state, local, or foreign law.

     “Assigned Contracts” has the meaning set forth in Section 2.04(c).

     “Assignment and Assumption Agreement” has the meaning set forth in Section 2.04(c).

     “Astoria Generating Facility” means the natural gas/fuel oil-fired electric generating
facility located at 18-01 20th Ave Gate (Q135), Astoria, New York 11105.

     “Astoria LP” has the meaning set forth in the recitals to this Agreement.

     “Audited Financial Statements” has the meaning set forth in Section 6.22(b).

     “Base Purchase Price” has the meaning set forth in Section 2.02(a).

     “Base Purchase Price Allocation” has the meaning set forth in Section 2.07.

     “Benefit Plan” means: (a) each “employee benefit plan,” as such term is defined in Section
3(3) of ERISA, (b) each plan that would be an employee benefit plan if it was subject to ERISA,
such as foreign plans and plans for directors, (c) each stock bonus, stock ownership, stock option,
stock purchase, stock appreciation rights, phantom stock, or other equity plan (whether qualified
or nonqualified), (d) each bonus, deferred compensation or incentive compensation plan, and any
other material employee benefit plan, program, agreement or arrangement of any kind (including,
without limitation, any employment, consulting, retention, change in control or severance plan,
policy, arrangement or agreement); provided, that such term shall not include (1) routine
employment policies and procedures, including wage, vacation, holiday, and sick or other leave
policies, (2) workers compensation insurance, and (3) directors and officers liability insurance.

     “Benefits Committee” has the meaning set forth in Section 6.14(k).

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     “Break-Up Fee Payment” has the meaning set forth in Section 8.02.

     “Business Day” means a day other than Saturday, Sunday or any day on which banks located in
the State of New York and the State of Texas are authorized or obligated to close.

     “Buyer” has the meaning set forth in the introductory paragraph to this Agreement.

     “Buyer Governmental Approvals” has the meaning set forth in Section 5.03(c).

     “Buyer Indemnified Group” means Buyer, the Companies and Buyer’s Affiliates and their
respective officers, directors, employees and agents.

     “Buyer Savings Plan” has the meaning set forth in Section 6.14(g).

     “Capital Expenditures” means expenditures for capital additions to or replacements of
property, plant and equipment included in the Purchased Assets and other expenditures or repairs on
property, plant and equipment included in the Purchased Assets that would be capitalized by the
Companies in accordance with their normal capitalization policies.

     “Change of Law” means the adoption, implementation, promulgation, or repeal of any Law of or
by any Governmental Authority which occurs subsequent to the Execution Date.

     “Charter Documents” means with respect to any Person, the articles of incorporation or
organization and by-laws, the limited partnership agreement, the partnership agreement or the
limited liability company agreement, and/or such other organizational documents of such Person,
including those that are required to be registered or kept in the place of incorporation,
organization or formation of such Person and which establish the legal personality of such Person.

     “Claim” means any demand, claim, suit, charge, complaint, grievance, action, investigation,
legal proceeding (whether at law or in equity) or arbitration.

     “Closing” has the meaning set forth in Section 2.03.

     “Closing Date” means the date on which Closing occurs.

     “Closing Date Working Capital Amount” means the current assets of the Companies minus the
current liabilities of the Companies determined as of 11:59 p.m. on the Closing Date as determined
in accordance with GAAP using the same methodology as was used in preparing the June 30 Balance
Sheets; provided that (i) current assets shall not include and current liabilities shall not be
reduced by (A) any Income Tax assets and (B) any asset related to the sale, lease or other
disposition of long-term asset of the Companies, (C) any cash deposited or escrowed with a
third-party that supports obligations of the Companies, and (D) any spare parts or equipment in
inventory that are not expected to be used within twelve (12) months (which spare parts or
equipment, the parties agree, is reflected as of the Execution Date, on the attached Schedule I-3;
(ii) current liabilities shall not include liabilities related to Income Taxes, and (iii) the
Closing Date Working Capital Amount shall be determined without regard to Intercompany Receivables

-4-

 

and Intercompany Payables (other than the RES Payable, which shall be included as a current
liability).

     “Code” means the Internal Revenue Code of 1986, as amended.

     “Collective Bargaining Contract” means that certain Collective Bargaining Contract dated June
25, 2000, and extended by Memorandum of Understanding effective June 25, 2004, between OPOS and the
Utility Workers Union of America, AFL-CIO and its Local Union No. 1-2, as the same has been amended
from time to time.

     “Commitment Letters” has the meaning set forth in Section 5.08.

     “Commonly Controlled Entity” has the meaning set forth in Section 4.10(b).

     “Companies” has the meaning set forth in Section 2.01.

     “Company Liens” has the meaning set forth in Section 6.08.

     “Company Consents” has the meaning set forth in Section 4.02(b).

     “Company Interests” has the meaning set forth in Section 2.01.

     “Company Participants” means the Continuing Employees who have an account balance under a
Seller Savings Plan.

     “Company Plan” means each Benefit Plan that is sponsored, maintained or contributed to as of
the date of this Agreement by Seller or any Affiliate of Seller and which Benefit Plan provides
benefits solely with respect to current or former directors, officers or employees of either or
both of the Companies.

     “ConEd Agreement” means that certain Generating Plant and Gas Turbine Asset Purchase Agreement
for Astoria Generating Plants, Gowanus Gas Turbines, and Narrows Gas Turbines by and between
Consolidated Edison Company of New York, Inc. and Astoria Generating Company, L.P., dated as of
March 2, 1999, as the same has been and may be amended, modified, supplemented or waived from time
to time.

     “Confidential Information” has the meaning set forth in Section 6.13(b).

     “Confidentiality Agreement” has the meaning set forth in Section 6.13(a).

     “Continuing Employee” means (a) each individual who is employed by the Companies as of the
Closing (including each such individual who is on a vacation, sick, military, disability,
short-term disability or other approved leave of absence) and (b) each Affiliate Employee who
accepts an offer of employment from Buyer or an Affiliate of Buyer as provided in Section 6.14(c)
and reports to work with Buyer.

-5-

 

     “Contract” means any written contract, lease, license, evidence of indebtedness, mortgage,
indenture, purchase order, binding bid, letter of credit, security agreement or other written
legally binding arrangement.

     “CPR Rules” has the meaning set forth in Section 10.05(a).

     “Credit Rating” means, with respect to any Person, each rating given to such Person’s
long-term, unsecured, unsubordinated debt obligations not supported by third party credit
enhancement by Standard & Poor’s or Moody’s, as applicable.

     “Debt Commitment Letter” has the meaning set forth in Section 5.08.

     “Definitive Financing Documentation” has the meaning set forth in Section 6.23.

     “Environmental Law” means any federal, state, local or foreign law (including common law),
statute, ordinance, rule, regulation, code, license, permit, authorization, approval, consent,
order, judgment, decree, injunction, legally enforceable requirement of or agreement with any
Governmental Authority, relating to (a) the protection, preservation or restoration of the
environment (including air, water vapor, surface water, groundwater, drinking water supply, surface
land, subsurface land, plant and animal life or any other natural resource), or (b) the exposure
to, or the use, storage, recycling, treatment, generation, transportation, processing, handling,
labeling, production, release or disposal of Hazardous Substances.

     “Equity Commitment Letter” has the meaning set forth in Section 5.08.

     “ERISA” means the Employee Retirement Income Security Act of 1974, as amended.

     “Escrow Agent” has the meaning set forth in Section 2.08.

     “Escrow Agreement” has the meaning set forth in Section 2.08.

     “Escrow Amount” has the meaning set forth in Section 2.08.

     “Estimated Purchase Price” has the meaning set forth in Section 2.08.

     “Excess Amount” has the meaning set forth in Section 2.08.

     “Excess Liability Policies” means the following insurance policies: (a) Aegis — primary $35MM
limit, (b) Energy Insurance Mutual (EIM) second layer follow-form AEGIS — $65MM limit, and (c) OIL
Casualty INC (OCIL) third layer follow-form AEGIS $50MM limit.

     “Excluded Assets” has the meaning set forth in Section 6.06.

     “Excluded Sections” means Sections 3.01, 3.02, 3.04, 4.01, 4.03, and 4.17.

     “Execution Date” has the meaning set forth in the introductory paragraph to this Agreement.

-6-

 

     “Facility” or “Facilities” means one or more of the Astoria Generating Facility, the Gowanus
Gas Turbine Facility and the Narrows Gas Turbine Facility.

     “FERC” means the Federal Energy Regulatory Commission.

     “Final Purchase Price” has the meaning set forth in Section 2.06(c).

     “Final Purchase Price Allocation” has the meaning set forth in Section 2.07.

     “GAAP” means generally accepted accounting principles in the United States of America.

     “Governmental Authority” means any court, tribunal, arbitrator, authority, agency, commission,
official or other instrumentality of the United States or any state, county, city or other
political subdivision or similar governing entity, and including any governmental,
quasi—governmental or non-governmental body administering, regulating or having general oversight
over gas, electricity, power or other markets.

     “Gowanus Gas Turbine Facility” means the barge mounted oil fired electric generating facility
located at 29th Street and 2nd Avenue, Brooklyn, New York 11232.

     “Guarantor” has the meaning set forth in the introductory paragraph to this Agreement.

     “Gunderboom Contract” means that certain Cartridge Filter Technology Development, License and
Assignment Agreement dated April 21, 2003 by and among Guarantor, Seller, Astoria LP, and
Gunderboom, Inc.

     “Hazardous Substance” means any substance presently listed, defined, designated or classified
as a pollutant, contaminant, hazardous substance, toxic substance, hazardous waste, solid waste, or
special waste, or that is otherwise regulated, under any Environmental Law and shall include
petroleum.

     “Hedging Agreement” has the meaning set forth in Section 6.21.

     “HSR Act” means the Hart-Scott-Rodino Antitrust Improvements Act of 1976.

     “Improvements” means all buildings and all components of all buildings, structures and other
improvements included within the Real Property.

     “Included Covenants” means the covenants and agreements of Seller in Sections 6.01, 6.02
(other than Section 6.02(a)(iii)), 6.09, 6.12, 6.15, and 6.20.

     “Income Taxes” means all federal, state, local, and foreign income Taxes or other Taxes based
on or measured by income, net worth or receipts including, without limitation, any franchise Taxes
measured by or based upon income or receipts.

     “Indebtedness” means, for the Companies, (i) any indebtedness of the Companies for borrowed
money or issued in substitution or exchange for indebtedness for borrowed money, (ii)

-7-

 

any indebtedness of the Companies evidenced by any note, bond, debenture or other debt
security, (iii) other than such obligations incurred in the ordinary course of business, any
indebtedness of the Companies for the deferred purchase price of property or services with respect
to which the Companies are liable, contingently or otherwise, as obligor or otherwise (including
any deferred purchase price, however structured, for the acquisition of any assets, business or
other Person), (iv) any obligations under leases which are or, in accordance with GAAP should be
capitalized with respect to which the Companies are liable, contingently or otherwise, as obligor,
guarantor or otherwise, or with respect to which obligations the Company assures a creditor against
loss, (v) all obligations, contingent or otherwise, of the Companies under acceptance, letter of
credit or similar facilities or any other commitment by which the Companies assure a creditor
against loss, (vi) all guarantees by the Companies of obligations and liabilities described in
clauses (i)-(v) foregoing of another Person (including Non-Company Affiliates) (assuming for such
purposes that the obligations and liabilities of the Companies referred to in clauses (i)-(v) are
instead liabilities and obligations of such third Person) together with, for clauses (i)-(v) of
this definition, all accrued but unpaid interest, redemption premium, pre-payment penalty or other
payment obligation due and owing with respect to any of the foregoing (determined in each case, as
if paid on the Closing Date, or as soon thereafter as permitted in accordance with the terms
governing such indebtedness).

     “Indemnified Party” has the meaning set forth in Section 9.05(a).

     “Indemnifying Party” has the meaning set forth in Section 9.05(a).

     “Independent Accountant” has the meaning set forth in Section 6.10(h).

     “Insurance Policies” has the meaning set forth in Section 4.16.

     “Intellectual Property” has the meaning set forth in Section 4.13.

     “Intercompany Payables” means the payables of the Companies to the Seller and the Non-Company
Affiliates.

     “Intercompany Receivables” means the receivables of the Companies from the Seller and the
Non-Company Affiliates.

     “Interest Rate” means the prime per annum rate of interest as published by The Wall Street
Journal.

     “Interim Period” means the period of time from the Execution Date until the Closing Date or
termination of this Agreement.

     “Investment Grade” means an entity having long term, unsecured, unsubordinated debt not
supported by third party credit enhancement that is rated “BBB-” or higher by Standard & Poor’s,
and “Baa3” or higher by Moody’s, and that in either case is not on negative credit watch.

     “Iroquois” has the meaning set forth in Section 6.07(b).

     “Iroquois Contract” has the meaning set forth in Section 6.07(b).

-8-

 

     “IRS” means the U.S. Internal Revenue Service.

     “June 30 Balance Sheets” has the meaning set forth in Section 4.04(c).

     “Knowledge” means, in the case of Seller, the actual knowledge (as opposed to any constructive
or imputed knowledge) after reasonable inquiry of and by the individuals listed on Schedule
I-1, and in the case of Buyer, the actual knowledge (as opposed to any constructive or imputed
knowledge) of the individuals listed on Schedule I-2, after reasonable inquiry.

     “Laws” means all laws, statutes, rules, regulations, ordinances and other pronouncements
having the effect of law of any Governmental Authority.

     “Leases” means all leases, subleases, licenses, concessions and other agreements (written or
oral) pursuant to which the Companies, or either of them, holds any Leased Real Property, including
the right to all security deposits and other amounts and instruments deposited by or on behalf of
the Companies, or either of them.

     “Leased Real Property” means all leasehold or subleasehold estates and other rights to use or
occupy any land, buildings, structures, improvements, fixtures or other interest in real property
held by the Companies, or any one or more of them.

     “Lien” means any mortgage, pledge, assessment, security interest, lien or other similar
encumbrance.

     “Losses” means any and all judgments, losses, liabilities, amounts paid in settlement,
damages, fines, penalties, deficiencies, losses and expenses (including interest, court costs,
reasonable fees of attorneys, accountants and other experts or other reasonable expenses of
litigation or other proceedings or of any claim, default or assessment).

     “Marketing Period Expiration Date” means the date that is the later of (i) the 20th day after
(x) satisfaction or waiver in writing by Buyer of all of Buyer’s conditions to Closing specified in
Section 7.01 and Section 7.02 and (y) written demand by Seller of performance by Buyer of its
obligations at the Closing and (ii) January 31, 2006.

     “Material Adverse Effect” means any change, event, fact, circumstance or effect that is or
would reasonably be expected to be materially adverse to the business, assets or financial
condition of the Companies, taken as a whole, in each case, except for any such change, event or
effect resulting from or arising out of (a) changes in economic conditions generally or the
industry in which the Companies operate, (b) changes in international, national, regional, state or
local wholesale or retail markets for electric power or fuel or related products including those
due to actions by competitors, (c) changes in general regulatory or political conditions (other
than items addressed in clauses (d) and (h)), (d) Changes of Laws governing national, regional,
state or local electric transmission or distribution systems, (e) strikes, work stoppages or other
labor disturbances, (f) increases in costs of commodities or supplies, including fuel, (g) effects
of weather or meteorological events, (h) any Change of Laws (other than Changes of Laws governing
electric transmission or distribution systems), and (i) any actions to be taken pursuant to or in
accordance with this Agreement, except in the case of clauses (d) and (h) for any such change that
disproportionately impacts the operation of the Companies versus similar power

-9-

 

plants located in New York City; provided that none of clauses (a) through (i) foregoing shall
be deemed to apply as a result of acts of war or terrorist acts.

     “Material Contracts” has the meaning set forth in Section 4.08(a).

     “Moody’s” means Moody’s Investors Services, Inc., and its successors.

     “Narrows Gas Turbine Facility” means the barge-mounted, natural gas/oil-fired electric
generating facility located at 53rd Street and 1st Avenue, Brooklyn, New York 11232.

     “Non-Company Affiliates” means Affiliates of Seller other than the Companies.

     “Notice of Disagreement” has the meaning set forth in Section 2.08.

     “Objection Notice” has the meaning set forth in Section 6.24.

     “Off-Site Location” shall mean any location other than the Facilities, but shall not include
any location to which Hazardous Substances disposed of at any of the Facilities have migrated.

     “OPNY GP” has the meaning set forth in the recitals to this Agreement.

     “OPNY LLC” has the meaning set forth in the recitals to this Agreement.

     “OPNY LP” has the meaning set forth in the recitals to this Agreement.

     “OPOS” has the meaning set forth in the recitals to this Agreement.

     “OPOS Parent” has the meaning set forth in the recitals to this Agreement.

     “Orion Power Capital” has the meaning set forth in the recitals to this Agreement.

     “Owned Real Property” means all land, together with all buildings, structures, improvements
and fixtures located thereon, and all easements and other rights and interests appurtenant thereto
owned by the Companies, or either of them.

     “Parties” means each of Buyer and Seller.

     “PBGC” has the meaning set forth in Section 4.10(b).

     “Permits” means all licenses, permits, authorizations, approvals, registrations, concessions,
franchises and similar consents granted or issued by any Governmental Authority.

     “Permitted Encumbrances” means (a) with respect to the Owned Real Property statutory liens for
current taxes or other governmental charges with respect to the Real Property not yet due and
payable or the amount or validity of which is being contested in good faith by appropriate
proceedings by Seller and for which appropriate reserves have been established in accordance with
GAAP; (b) mechanics, carriers workers, repairers and similar statutory liens arising or incurred in
the ordinary course of business for amounts which are not delinquent and

-10-

 

which are not, individually or in the aggregate, material to the business of the Companies;
(c) zoning, entitlement, building and other land use regulations imposed by governmental agencies
having jurisdiction over the Real Property which are not violated in any material respect by the
current use and operation of the Real Property; and (d) covenants, conditions, restrictions,
easements and other similar matters affecting title to the Real Property which do not materially
impair the occupancy or use of the Real Property for the purposes for which it is currently used in
connection with the business of the Companies.

     “Person” means any natural person, corporation, general partnership, limited partnership,
limited liability company, proprietorship, other business organization, trust, union, association,
entity or Governmental Authority.

     “Preliminary Purchase Price” has the meaning set forth in Section 2.08.

     “Pre-Closing Tax Periods” has the meaning set forth in Section 6.10(f).

     “Purchased Assets” means all of the assets of the Companies (including the Real Property),
excluding the Excluded Assets.

     “Real Property” means the Owned Real Property and the Leased Real Property.

     “Regulation S-X” means Regulation S-X of the Securities Act of 1933, as amended.

     “Release Date” has the meaning set forth in Section 6.05(d).

     “Representatives” means officers, directors, employees, counsel, accountants, financial
advisers or consultants of either Seller or Buyer, as applicable.

     “RES Payable” means amounts due to Reliant Energy Services, Inc. for delivered fuel provided
to Astoria LP which fuel is provided at actual cost and mobile maintenance charges provided to
Astoria LP in the ordinary course of business consistent with past practices.

     “Retained Policies” has the meaning set forth in Section 6.09(b).

     “Retirement Plan” means the Astoria Generating Company, LP Retirement Plan, as amended.

     “Scheduled Insurance Policies” has the meaning set forth in Section 6.09.

     “Seller” has the meaning set forth in the introductory paragraph to this Agreement.

     “Seller Consents” has the meaning set forth in Section 3.03(b).

     “Seller Entities” means Seller, OPNY LP, OPNY GP and OPOS Parent.

     “Seller Environmental Liabilities” shall mean, to the extent not indemnified by Consolidated
Edison Company of New York pursuant to ConEd Agreement, liability arising from the disposal of any
Hazardous Substance, to the extent relating to or arising from the

-11-

 

ownership or operation of the Facilities prior to the Closing Date and during the period of
ownership of Orion Power Holdings, Inc. at any Off-Site Location.

     “Seller Governmental Approvals” has the meaning set forth in Section 3.03(c).

     “Seller Group” means the Affiliated Group filing a consolidated federal income tax return of
which Guarantor is the common parent.

     “Seller Indemnified Group” means Seller and Seller’s Affiliates and their respective officers,
directors, employees and agents.

     “Seller Marks” has the meaning set forth in Section 6.04.

     “Seller Plan” means each Benefit Plan (other than the Company Plans) that is sponsored,
maintained or contributed to as of the Closing Date by Seller or by any trade or business, whether
or not incorporated, that together with Seller would be a “single employer” within the meaning of
Section 4001(b) of ERISA.

     “Seller Savings Plans” means the Orion Power Holdings, Inc. Savings Plan and the Reliant
Energy, Inc. Savings Plan.

     “Seller’s Disclosure Schedule” means the schedules provided pursuant to Article III and
Article IV.

     “Seller’s Post-Closing Estimate” has the meaning set forth in Section 2.06(a).

     “Severance Plan” means the Reliant Energy, Inc. 2003 Involuntary Severance Benefits Plan for
Employees With Annual Base Pay Less Than $150,000 As Amended and Restated Effective June 1, 2004.

     “Specified Termination Event” means the occurrence of all of the following events: (i) all
conditions to Buyer’s obligations under this Agreement have been satisfied in full or waived in
writing by Buyer and (ii) the Marketing Period Expiration Date has occurred.

     “Standard & Poor’s” means Standard & Poor’s Ratings Group (a division of McGraw Hill, Inc.),
and its successors.

     “Straddle Period” has the meaning set forth in Section 6.10(g).

     “Subsequent Financial Statements” has the meaning set forth in Section 6.22(a).

     “Sunset Coverage” has the meaning set forth in Section 6.09(c).

     “Support Obligations” has the meaning set forth in Section 6.05(a).

     “Surveys” means current surveys of each parcel of the Real Property, prepared by a licensed
surveyor, satisfactory to Buyer, and conforming to 1992 ALTA/ACSM Minimum Detail Requirements for
Urban Land Title Surveys, and such standards as the Title Insurer may require as a condition to the
removal of any survey exceptions from the Title Policy, and certified to

-12-

 

Buyer, Buyer’s lender and the Title Insurer, disclosing the location of all Improvements,
easements, party walls, sidewalks, roadways, utility lines and such matters shown customarily on
such surveys, showing access affirmatively to public streets and roads, and including Table A Item
Nos. 1-4 and 6-14.

     “Target Working Capital Amount” means the amount set forth on Schedule 2.02(b).

     “Tax” or “Taxes” means any federal, state, local, or foreign income, profits, franchise,
withholding, ad valorem, personal property (tangible and intangible), employment, payroll, sales
and use, social security (or similar), disability, occupation, property, severance, excise, gross
receipts, utility, license, severance, stamp, premium, windfall profits, environmental (including
taxes under Code §59A), customs duties, capital stock, unemployment, registration, utility,
production, value added, alternative or add-on minimum, estimated, and other taxes imposed by a
Taxing Authority of any kind whatsoever, whether computed on a separate of consolidated, unitary or
combined basis or in any other manner, including any interest, penalty or addition thereto, whether
disputed or not and including any obligation to indemnify or otherwise assume or succeed to the Tax
liability of any other Person.

     “Tax Items” has the meaning set forth in Section 6.10(a).

     “Tax Proceedings” has the meaning set forth in Section 6.10(c).

     “Tax Returns” means any return, report or similar statement required to be filed with respect
to any Taxes, including any information return, claim for refund, amended return and declaration of
estimated Tax.

     “Tax Sharing Agreements” has the meaning set forth in Section 4.09(e).

     “Taxing Authority” means, with respect to any Tax, the Governmental Authority or political
subdivision thereof that imposes such Tax, and the agency (if any) charged with the collection of
such Tax for such entity or subdivision.

     “Terminated Contracts” has the meaning set forth in Section 6.07(a).

     “Termination Date” has the meaning set forth in Section 8.01(b)(i).

     “Third Party Claim” has the meaning set forth in Section 9.05(a).

     “Title Commitments” means Title Insurance Commitment No. 3605-00302 issued by Chicago Title
Insurance Company dated July 1, 2005, Title Insurance Commitment No. 3405-00257 issued by Chicago
Title Insurance Company dated July 25, 2005 and Title Insurance Commitment No. 3405-00258 issued by
Chicago Title Insurance Company dated July 25, 2005.

     “Title Insurer” means Chicago Title Insurance Company.

     “Title Policies” means an ALTA ‘92 Owners (or Loan) or ALTA ‘92 Owner’s (or Loan) with “TIRSA
Leasehold Endorsement”, as the case may be, for each of the parcels of Real Property, based upon
commitments therefore, dated as of the Closing Date, issued by the Title

-13-

 

Insurer in such amount as Buyer reasonably determines to be the fair market value (including
all improvements thereon) and for each such parcel (a) insuring title to such parcel of real estate
and all recorded easements benefiting such parcel, subject only to Permitted Encumbrances and the
matters described in the Title Commitments, (b) containing a “New York Standard Owner’s (or Loan)
Endorsement” providing record GAP and mechanic’s lien coverage, (c) containing a “TIRSA Land Same
As Endorsement” insuring that the parcel described in such Title Policy is the parcel shown on the
survey delivered with respect to such parcel, (d) containing a “TIRSA Access Endorsement insuring
direct and unencumbered access from such parcel to the physically opened public streets abutting
the parcel, (e) if the real estate covered by such policy consists of more than one record parcel,
containing a “TIRSA Contiguity Endorsement” insuring that all of the record parcels are contiguous
to one another, (f) if appropriate to the transaction, containing a “TIRSA Non-imputation
Endorsement”, (g) contain the applicable “TIRSA Tax Parcel Endorsement”, and (h) containing such
other endorsements as Buyer and Buyer’s financing sources, if any, may reasonably request, and as
are currently available in New York.

     “Transfer Taxes” means all transfer, real property transfer, sales, use, goods and services,
value added, recordation, documentary, stamp duty, excise, and conveyance Taxes and other similar
Taxes, duties, fees or charges, as levied by any Taxing Authority in connection with the
transactions contemplated by this Agreement, including any real property transfer Taxes imposed by
the City of New York or by the State of New York; provided, however, that for the avoidance of
doubt, the term Transfer Taxes shall not include any Income Taxes.

     “Transition Services Agreement” has the meaning set forth in Section 2.04(d).

     “Union” has the meaning set forth in Section 6.14(b).

     “Updated Title Commitments” has the meaning set forth in Section 6.24.

     “WARN Act” has the meaning set forth in Section 4.11(c).

     “Welfare Benefits” has the meaning set forth in Section 6.14(h).

     “Work-around” has the meaning set forth in Section 6.25.

     “Working Capital Adjustment Amount” means the result of the Closing Date Working Capital
Amount minus the Target Working Capital Amount.

-14-EX-10.11

EXECUTION VERSION

Exhibit 10.11

AGREEMENT AND PLAN OF MERGER

among

US POWER GENERATING COMPANY,

EBG HOLDINGS LLC,

EBG MERGER LLC,

ASTORIA GENERATING COMPANY HOLDINGS, L.L.C.

and

ASTORIA MERGER LLC

Dated as of February 28, 2007

 

 

	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE I THE MERGERS	 	 	2	 
	 

	 	 	1.1	 	 	The Mergers
	 	 	2	 
	 

	 	 	1.2	 	 	Closing; Effective Time
	 	 	2	 
	 

	 	 	1.3	 	 	Conversion of Interests
	 	 	3	 
	 

	 	 	1.4	 	 	EBG Warrants
	 	 	4	 
	 

	 	 	1.5	 	 	Organization Documents of USPowerGenCo
	 	 	5	 
	 

	 	 	1.6	 	 	Limited Liability Company Operating Agreements
	 	 	5	 
	 

	 	 	1.7	 	 	Directors and Officers of USPowerGenCo
	 	 	5	 
	 

	 	 	1.8	 	 	True-up
	 	 	6	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE II REPRESENTATIONS AND WARRANTIES OF EBG	 	 	7	 
	 

	 	 	2.1	 	 	Status, etc
	 	 	7	 
	 

	 	 	2.2	 	 	Capitalization
	 	 	8	 
	 

	 	 	2.3	 	 	Conflicts Consents
	 	 	9	 
	 

	 	 	2.4	 	 	Financial Statements
	 	 	10	 
	 

	 	 	2.5	 	 	Absence of Undisclosed Liabilities
	 	 	11	 
	 

	 	 	2.6	 	 	Events Subsequent to Latest Financial Statements
	 	 	11	 
	 

	 	 	2.7	 	 	Tax Matters
	 	 	12	 
	 

	 	 	2.8	 	 	Litigation
	 	 	13	 
	 

	 	 	2.9	 	 	Compliance with Laws; Permits
	 	 	13	 
	 

	 	 	2.10	 	 	Regulatory Status
	 	 	14	 
	 

	 	 	2.11	 	 	Employee Benefits
	 	 	15	 
	 

	 	 	2.12	 	 	Labor Matters
	 	 	17	 
	 

	 	 	2.13	 	 	Real Property; Tangible Property
	 	 	17	 
	 

	 	 	2.14	 	 	Intellectual Property
	 	 	19	 
	 

	 	 	2.15	 	 	Contracts
	 	 	19	 
	 

	 	 	2.16	 	 	Insurance
	 	 	21	 
	 

	 	 	2.17	 	 	Environmental Matters
	 	 	22	 
	 

	 	 	2.18	 	 	Affiliate Transactions
	 	 	23	 
	 

	 	 	2.19	 	 	Brokers
	 	 	23	 
	 

	 	 	2.20	 	 	Formation of USPowerGenCo, Astoria MergerCo and EBG MergerCo; No Prior Activities
	 	 	23	 
	 

	 	 	2.21	 	 	Appraisal Rights
	 	 	23	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE III REPRESENTATIONS AND WARRANTIES OF ASTORIA	 	 	23	 
	 

	 	 	3.1	 	 	Status, etc
	 	 	23	 
	 

	 	 	3.2	 	 	Capitalization
	 	 	24	 
	 

	 	 	3.3	 	 	Conflicts, Consents
	 	 	25	 
	 

	 	 	3.4	 	 	Financial Statements
	 	 	26	 
	 

	 	 	3.5	 	 	Absence of Undisclosed Liabilities
	 	 	27	 
	 

	 	 	3.6	 	 	Events Subsequent to Latest Financial Statements
	 	 	27	 
	 

	 	 	3.7	 	 	Tax Matters
	 	 	28	 

i

 

	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 	3.8	 	 	Litigation
	 	 	29	 
	 

	 	 	3.9	 	 	Compliance with Laws; Permits
	 	 	29	 
	 

	 	 	3.10	 	 	Regulatory Status
	 	 	30	 
	 

	 	 	3.11	 	 	Employee Benefits
	 	 	31	 
	 

	 	 	3.12	 	 	Labor Matters
	 	 	33	 
	 

	 	 	3.13	 	 	Real Property; Tangible Property
	 	 	33	 
	 

	 	 	3.14	 	 	Intellectual Property
	 	 	35	 
	 

	 	 	3.15	 	 	Contracts
	 	 	35	 
	 

	 	 	3.16	 	 	Insurance
	 	 	37	 
	 

	 	 	3.17	 	 	Environmental Matters
	 	 	38	 
	 

	 	 	3.18	 	 	Affiliate Transactions
	 	 	39	 
	 

	 	 	3.19	 	 	Brokers
	 	 	39	 
	 

	 	 	3.20	 	 	Accredited Investors
	 	 	39	 
	 

	 	 	3.21	 	 	Appraisal Rights
	 	 	39	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE IV COVENANTS	 	 	39	 
	 

	 	 	4.1	 	 	Conduct of the Companies and their Subsidiaries
	 	 	39	 
	 

	 	 	4.2	 	 	Solicitation of EBG Members
	 	 	40	 
	 

	 	 	4.3	 	 	Regulatory Compliance
	 	 	41	 
	 

	 	 	4.4	 	 	Updates
	 	 	41	 
	 

	 	 	4.5	 	 	Satisfaction of Closing Conditions
	 	 	41	 
	 

	 	 	4.6	 	 	No Solicitation
	 	 	43	 
	 

	 	 	4.7	 	 	Access and Information
	 	 	46	 
	 

	 	 	4.8	 	 	Publicity
	 	 	46	 
	 

	 	 	4.9	 	 	Transfer Taxes
	 	 	46	 
	 

	 	 	4.10	 	 	Indemnification of Directors and Officers
	 	 	46	 
	 

	 	 	4.11	 	 	2006 Audited Financial Statements
	 	 	48	 
	 

	 	 	4.12	 	 	Rating Agencies; Preparation of 144A Financial Statements
	 	 	48	 
	 

	 	 	4.13	 	 	Initial Public Offering
	 	 	49	 
	 

	 	 	4.14	 	 	Unit Appreciation Rights
	 	 	49	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE V CONDITIONS TO CLOSING	 	 	49	 
	 

	 	 	5.1	 	 	Conditions to the Obligations of EBG and Astoria
	 	 	49	 
	 

	 	 	5.2	 	 	Conditions to the Obligation of Astoria
	 	 	50	 
	 

	 	 	5.3	 	 	Conditions to the Obligation of EBG
	 	 	51	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE VI NO SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS	 	 	52	 
	 

	 	 	6.1	 	 	No Survival of Representations, Warranties and Covenants
	 	 	52	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE VII TERMINATION	 	 	52	 
	 

	 	 	7.1	 	 	Termination
	 	 	52	 
	 

	 	 	7.2	 	 	Effect of Termination
	 	 	53	 

ii

 

	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE VIII DEFINITIONS AND INTERPRETATION	 	 	56	 
	 

	 	 	8.1	 	 	Definition of Certain Terms; Interpretation
	 	 	56	 
	 
	 	 	 	 	 	 	 	 	 	 
	ARTICLE IX GENERAL PROVISIONS	 	 	65	 
	 

	 	 	9.1	 	 	Expenses
	 	 	65	 
	 

	 	 	9.2	 	 	Further Actions
	 	 	66	 
	 

	 	 	9.3	 	 	Certain Limitations
	 	 	66	 
	 

	 	 	9.4	 	 	Notices
	 	 	66	 
	 

	 	 	9.5	 	 	Limited Disclosure
	 	 	68	 
	 

	 	 	9.6	 	 	Binding Effect
	 	 	68	 
	 

	 	 	9.7	 	 	Assignment; Successors; Third Party Beneficiaries
	 	 	68	 
	 

	 	 	9.8	 	 	Amendment; Waivers, etc
	 	 	69	 
	 

	 	 	9.9	 	 	Entire Agreement
	 	 	69	 
	 

	 	 	9.10	 	 	Severability
	 	 	69	 
	 

	 	 	9.11	 	 	Headings
	 	 	69	 
	 

	 	 	9.12	 	 	Counterparts
	 	 	69	 
	 

	 	 	9.13	 	 	Governing Law
	 	 	69	 
	 

	 	 	9.14	 	 	Consent to Jurisdiction, etc
	 	 	70	 
	 

	 	 	9.15	 	 	Waiver of Punitive and Other Damages and Jury Trial
	 	 	70	 

iii

 

EXHIBITS

	 	 	 
	 
	 	 
	Exhibit A-1

	 	Form of Certificate of Incorporation of USPowerGenCo
	 
	 	 
	Exhibit A-2

	 	Form of Bylaws of USPowerGenCo
	 
	 	 
	Exhibit B

	 	Form of Astoria LLC Agreement
	 
	 	 
	Exhibit C

	 	Form of EBG LLC Agreement
	 
	 	 
	Exhibit D-l

	 	Directors of USPowerGenCo
	 
	 	 
	Exhibit D-2

	 	Officers of USPowerGenCo
	 
	 	 
	Exhibit E

	 	Required Consents
	 
	 	 
	Exhibit F

	 	Form of Consulting Agreement
	 
	 	 
	Exhibit G

	 	Form of Investor Rights Agreement

iv

 

     AGREEMENT AND PLAN OF MERGER, dated as of February 28, 2007, among US Power Generating
Company, a Delaware corporation (“USPowerGenCo”), EBG Holdings LLC, a Delaware limited
liability company (“EBG”), EBG Merger LLC, a Delaware limited liability company (“EBG
MergerCo”), Astoria Generating Company Holdings, L.L.C., a Delaware limited liability company
(“Astoria”) and Astoria Merger LLC, a Delaware limited liability company (“Astoria
MergerCo”). Capitalized terms used herein are defined in Article VIII.

RECITALS:

     A. USPowerGenCo has been formed, and USPowerGenCo has formed EBG MergerCo and Astoria MergerCo
as wholly-owned Subsidiaries, in each case for the purpose of facilitating the transactions
contemplated hereby.

     B. The Board of Managers of Astoria and the Board of Directors of USPowerGenCo (as the sole
member of Astoria MergerCo) have determined that it is advisable and in the best interests of the
respective members of Astoria and Astoria MergerCo for Astoria MergerCo to merge with and into
Astoria (the “Astoria Merger”), with Astoria continuing as the surviving company of the
Astoria Merger, upon the terms and subject to the conditions set forth in this Agreement.

     C. The Board of Directors of EBG and the Board of Directors of USPowerGenCo (as the sole
member of EBG MergerCo), have determined that it is advisable and in the best interests of the
respective members of EBG and EBG MergerCo for EBG MergerCo to merge with and into EBG (the
“EBG Merger”, and together with the Astoria Merger, the “Mergers”), with EBG
continuing as the surviving company of the EBG Merger, upon the terms and subject to the conditions
set forth in this Agreement.

     D. For U.S. federal income Tax purposes, it is intended that (i) the Astoria Merger shall be
treated as a contribution of the Astoria Units to USPowerGenCo by the members of Astoria pursuant
to section 351 of the Code and (ii) the EBG Merger shall be treated as a contribution of the EBG
Units to USPowerGenCo by the members of EBG pursuant to section 351 of the Code.

     E. Immediately prior to the Mergers, each of the members of Astoria shall transfer (whether by
exchange, contribution, merger or otherwise) to New Astoria Generating Company Holdings, LLC, a
Delaware limited liability company (“New Astoria”), all of the Astoria Units held by such
member in exchange for the issuance by New Astoria to such member of an equivalent type and number
of units of limited liability company interest in New Astoria (the “Exchange”).

     NOW, THEREFORE, the parties hereto agree as follows:

 

 

ARTICLE I

THE MERGERS

     1.1 The Mergers.

     (a) Upon the terms and subject to the conditions of this Agreement and in accordance with the
applicable provisions of the Delaware Limited Liability Company Act (the “LLC Act”), at the
Effective Time, the EBG Merger shall be consummated pursuant to which EBG MergerCo shall be merged
with and into EBG and the separate existence of EBG MergerCo shall cease. After the EBG Merger, EBG
shall continue as the surviving company (sometimes hereinafter referred to as the “EBG
Surviving Company”) and shall continue to be governed by the laws of the State of Delaware. The
EBG Merger shall have the effect as provided in the applicable provisions of the LLC Act. Without
limiting the generality of the foregoing, at the Effective Time, all the rights, privileges,
immunities, powers and franchises of EBG MergerCo and EBG shall vest in the EBG Surviving Company
and all restrictions, obligations, duties, debts and liabilities of EBG MergerCo and EBG shall be
the restrictions, obligations, duties, debts and liabilities of the EBG Surviving Company.

     (b) Upon the terms and subject to the conditions of this Agreement and in accordance with the
applicable provisions of the LLC Act, at the Effective Time, the Astoria Merger shall be
consummated pursuant to which Astoria MergerCo shall be merged with and into Astoria and the
separate existence of Astoria MergerCo shall cease. After the Astoria Merger, Astoria shall
continue as the surviving company (sometimes hereinafter referred to as the “Astoria Surviving
Company”) and shall continue to be governed by the laws of the State of Delaware. The Astoria
Merger shall have the effect as provided in the applicable provisions of the LLC Act. Without
limiting the generality of the foregoing, at the Effective Time, all the rights, privileges,
immunities, powers and franchises of Astoria and Astoria MergerCo shall vest in the Astoria
Surviving Company and all restrictions, obligations, duties, debts and liabilities of Astoria and
Astoria MergerCo shall be the restrictions, obligations, duties, debts and liabilities of the
Astoria Surviving Company.

     1.2 Closing; Effective Time.

     (a) The closing of the Mergers (the “Closing”) shall take place at the offices of
Debevoise & Plimpton LLP, 919 Third Avenue, New York, New York, at 10:00 a.m., New York time, on
the third Business Day following the satisfaction or waiver of the conditions set forth in Article
V (other than conditions which, by their nature, are to be satisfied at the Closing, but subject to
the waiver or satisfaction of those conditions), or at such other place, time and date as the
parties may agree. The “Closing Date” shall be the date upon which the Closing occurs.

2

 

     (b) On the Closing Date, (i) EBG and EBG MergerCo will cause the appropriate
certificate of merger (the “EBG Certificate of Merger”) to be executed and filed with the
Secretary of State of the State of Delaware (the “Delaware Secretary of State”) in such
form and executed as provided in Section 18-209 of the LLC Act, and (ii) Astoria and
Astoria MergerCo will cause the appropriate certificate of merger (the “Astoria Certificate of
Merger”, and together with the EBG Certificate of Merger, the “Certificates of Merger”)
to be executed and filed with the Delaware Secretary of State in such form and executed as provided
in Section 18-209 of the LLC Act. The “Effective Time” shall be on the date and at the time
that both of the Certificates of Merger have been accepted for filing by the Delaware Secretary of
State, and all other documents required by the LLC Act to effectuate the Mergers shall have been
properly executed and filed (or such later date and time as may be agreed to by EBG and Astoria and
specified in the Certificates of Merger, provided that both Mergers shall become effective at the
same time). The parties will cause the EBG Certificate of Merger and the Astoria Certificate of
Merger to be filed with the Delaware Secretary of State as soon as practicable after the Closing on
the Closing Date.

     1.3 Conversion of Interests.

     (a) At the Effective Time, by virtue of the EBG Merger and without any action on the part of
EBG, EBG MergerCo or the members of any of the foregoing, each EBG Unit (other than EBG Units held
as treasury units) issued and outstanding immediately prior to the Effective Time shall be
converted into the right to receive ten (10) fully paid and nonassessable shares of Class A Common
Stock of USPowerGenCo (the “EBG Merger Consideration”). The EBG Units, when converted,
shall no longer be outstanding and shall automatically be canceled and retired and shall cease to
exist, and the holders of the EBG Units shall cease to have any rights with respect thereto, except
the right to receive the EBG Merger Consideration upon the delivery by such member of a letter of
transmittal in customary form.

     (b) At the Effective Time, by virtue of the Astoria Merger and without any action on the part
of Astoria, Astoria MergerCo or the members of any of the foregoing, each Astoria Unit (other than
Astoria Units held as treasury units) issued and outstanding immediately prior to the Effective
Time shall be converted into the right to receive thirty-five thousand five hundred thirty-nine
(35,539) fully paid and non-assessable shares of Class B Common Stock of USPowerGenCo (the
“Astoria Merger Consideration”). The Astoria Units, when converted, shall no longer be
outstanding and shall automatically be canceled and retired and shall cease to exist, and the
holders of the Astoria Units shall cease to have any rights with respect thereto, except the right
to receive the Astoria Merger Consideration upon the delivery by such member of a letter of
transmittal in customary form.

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     (c) All EBG Units that are held by EBG as treasury units shall be canceled and retired and
shall cease to exist and no EBG Merger Consideration shall be delivered in exchange therefor.

     (d) All Astoria Units that are held by Astoria as treasury units shall be canceled and retired
and shall cease to exist and no Astoria Merger Consideration shall be delivered in exchange
therefor.

     (e) Each EBG MergerCo Unit issued and outstanding immediately prior to the Effective Time
(1,000 units, in the aggregate) shall be converted into and exchangeable for one unit of limited
liability company interest of the EBG Surviving Company (1,000 units, in the aggregate) (“EBG
Surviving Company Units”). From and after the Effective Time, each outstanding certificate
theretofore representing EBG MergerCo Units shall be deemed for all purposes to evidence ownership
of and to represent the number of EBG Surviving Company Units into which such EBG MergerCo Units
shall have been converted.

     (f) Each Astoria MergerCo Unit issued and outstanding immediately prior to the Effective Time
(1,000 units, in the aggregate) shall be converted into and exchangeable for one unit of limited
liability company interest of the Astoria Surviving Company (1,000 units, in the aggregate)
(“Astoria Surviving Company Units”). From and after the Effective Time, each outstanding
certificate theretofore representing Astoria MergerCo Units shall be deemed for all purposes to
evidence ownership of and to represent the number of Astoria Surviving Company Units into which
such Astoria MergerCo Units shall have been converted.

     1.4 EBG Warrants. At the Effective Time, by virtue of the EBG Merger and without any
action on the part of the holders thereof, each of the then outstanding EBG Warrants, if any, will
be converted into a warrant (a “Converted Warrant”) covering the purchase of a number of
shares of Class A Common Stock of USPowerGenCo equal to the number of shares of Class A Common
Stock of USPowerGenCo into which the EBG Units covered by such EBG Warrant would have been
converted pursuant to the EBG Merger, assuming such EBG Warrant had been exercised immediately
prior to the Effective Time. The terms and conditions of each Converted Warrant will otherwise
remain as set forth in the EBG Warrant converted into such Converted Warrant. USPowerGenCo shall at
all times keep in its authorized and issued shares of Class A Common Stock a sufficient number of
shares of Class A Common Stock to issue to holders of Converted Warrants upon exercise thereof.
USPowerGenCo shall take all such action such that, upon issuance, all shares of Class A Common
Stock issued pursuant to the exercise of a Converted Warrant shall be duly authorized, fully paid
and nonassessable.

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     1.5 Organization Documents of USPowerGenCo. Each of the parties shall take such action
within its control such that, effective as of the Effective Time (a) the Certificate of
Incorporation of USPowerGenCo shall be substantially in the form of Exhibit A-l attached hereto
(until amended in accordance with the terms thereof), and (b) the Bylaws of USPowerGenCo shall be
substantially in the form of Exhibit A-2 attached hereto (until amended in accordance with the
terms thereof).

     1.6 Limited Liability Company Operating Agreements. At the Closing:

     (a) (i) EBG shall deliver a counterpart executed by USPowerGenCo and (ii)
Astoria shall deliver any required consents of the then current members of Astoria, in each case to
an amended and restated limited liability company operating agreement of Astoria in the form set
forth in Exhibit B (the “Astoria LLC Agreement”), which, effective as of the Effective
Time, shall be the limited liability company operating agreement of the Astoria Surviving Company.

     (b) EBG shall deliver a counterpart executed by USPowerGenCo to an amended and restated
limited liability company operating agreement of EBG in the form set forth in Exhibit C (the
“EBG LLC Agreement”), which, effective as of the Effective Time, shall be the limited
liability company operating agreement of the EBG Surviving Company.

     1.7 Directors and Officers of USPowerGenCo.

     (a) From and after the Effective Time, the individuals set forth on Exhibit D-l hereto shall
be the directors of USPowerGenCo and each of its Subsidiaries until their successors shall have
been duly elected or appointed and qualified or until their earlier death, resignation or removal
in accordance with the applicable Organizational Documents. On or prior to the Closing Date, EBG
shall deliver to Astoria evidence reasonably satisfactory to Astoria of the resignations, effective
as of the Effective Time, of the directors of EBG and each of its Subsidiaries (other than any
director set forth on Exhibit D-l), such resignations to be effective as of the Effective Time, and
evidence reasonably satisfactory to Astoria that the individuals set forth on Exhibit D-l have been
duly elected as directors of USPowerGenCo, effective as of the Effective Time.

     (b) From and after the Effective Time, the officers set forth on Exhibit D-2 hereto shall be
the officers of the USPowerGenCo until their successors shall have been duly elected or appointed
and qualified or until their earlier death, resignation or removal in accordance with the
applicable Organizational Documents. On or prior to the Closing Date, EBG shall deliver to Astoria
evidence reasonably satisfactory to Astoria of the resignations, effective as of the Effective
Time, of the officers of EBG and each of its Subsidiaries, and evidence reasonably satisfactory to
Astoria that the individuals set forth

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on Exhibit D-2 have been duly appointed as officers of USPowerGenCo, effective as of the Effective
Time.

     1.8 True-up. It is the intention of the parties that, as of the Effective Time, the
aggregate number of shares of Class A Common Stock to be issued to the holders of EBG Units
pursuant to Section 1.3(a) and issuable to holders of Converted Warrants represents the EBG
Percentage multiplied by the Relevant Share Number and that the aggregate number of shares of Class
B Common Stock to be issued to New Astoria pursuant to Section 1.3(b) represents the New Astoria
Percentage multiplied by the Relevant Share Number. If, at the Effective Time, as a result of
application of Section 1.3 (a) and Section 1.4, the sum of (a) the aggregate number of shares of
USPowerGenCo Common Stock issued or issuable pursuant to Section 1.3(a) plus (b) the number of
shares of Class A Common Stock issuable upon exercise of the Converted Warrants (such sum, the
“EBG Fully-Diluted Shares”), exceeds 41,719,600, USPowerGenCo shall, for no consideration,
issue to New Astoria as promptly as practicable, an additional number of shares of Class B Common
Stock such that the number of shares of Class B Common Stock issued pursuant to Section 1.3(b) plus
the number of shares of Class B Common Stock issued pursuant to this Section 1.8 equals the New
Astoria Percentage multiplied by the Relevant Share Number (in each case determined as of the
Effective Time, but giving effect to such issuance). Furthermore, if, at the Effective Time, as a
result of application of Section 1.3(a) and Section 1.4, the number of EBG Fully-Diluted Shares is
less than 41,719,600, New Astoria shall, for no consideration, deliver as promptly as practicable
to USPowerGenCo for cancellation a number of shares of Class B Common Stock such that the number of
EBG Fully-Diluted Shares equals the EBG Percentage multiplied by the Relevant Share Number (in each
case determined as of the Effective Time, but giving effect to such cancellation). When used
herein, “EBG Percentage” means 54.0%, “New Astoria Percentage” means 46.0% and
“Relevant Share Number” means a number of shares of USPowerGenCo Common Stock equal to the
sum of (i) the number of shares of USPowerGenCo Common Stock issued or issuable to New Astoria
pursuant to Section 1.3(b), plus (ii) the number of shares of USPowerGenCo Common Stock issued or
issuable to holders of EBG Units pursuant to Section 1.3(a), plus (iii) the number of shares of
USPowerGenCo Common Stock issued or issuable upon exercise of the Converted Warrants, plus (iv) the
number of shares of Class B Common Stock (if any) which USPowerGenCo is obligated to issue pursuant
to this Section 1.8, minus (v) the number of shares of Class B Common Stock (if any) that New
Astoria is obligated to deliver for cancellation pursuant to this Section 1.8. For purposes of the
foregoing, USPowerGenCo shall at all times keep in its authorized and issued shares of Class B
Common Stock, and New Astoria shall keep free and clear of liens (other than liens under the
Certificate of Incorporation and liens on transfer under securities laws), a sufficient number of
shares of Class B Common Stock to satisfy its obligations hereunder. For all purposes hereof
(including USPowerGenCo’s and New Astoria’s obligations pursuant to the immediately foregoing
sentence), the type and number of shares otherwise issuable or deliverable under this Section 1.8
shall be equitably adjusted for any split, combination,

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dividend, reorganization, recapitalization, merger, consolidation or similar transaction affecting
the Class B Common Stock after the Closing and prior to satisfaction of USPowerGenCo’s and New
Astoria’s obligations hereunder. Furthermore, in the event any regulatory filing or other
governmental filing is required in connection with the issuance of Class B Common Stock hereunder,
USPowerGenCo shall, and shall cause its Subsidiaries to, and New Astoria shall, cooperate in such
filing, and USPowerGenCo shall bear all fees and expenses related to such filing. USPowerGenCo
shall take all such action such that, upon issuance, all shares of Class B Common Stock issued
pursuant to this Section 1.8 shall be duly authorized, fully paid and nonassessable. In connection
with any delivery for cancellation by New Astoria pursuant to this Section 1.8, New Astoria shall
be required to represent only that such shares are owned by New Astoria free and clear of liens
(other than liens under the Certificate of Incorporation and liens on transfer under securities
laws). If the certificate representing the USPowerGenCo Common Stock being delivered for
cancellation represents shares in addition to those required to be delivered for cancellation,
USPowerGenCo shall promptly deliver to New Astoria a new certificate representing the shares of
USPowerGenCo Common Stock not being delivered for cancellation. It is intended that, for tax and
corporate law purposes, the issuance of USPowerGenCo Common Stock pursuant to this Section 1.8
shall be a contract right (not a dividend or distribution) and shall be treated for tax purposes as
an adjustment to the consideration paid at the Closing.

ARTICLE II

REPRESENTATIONS AND WARRANTIES

OF EBG

     Except as set forth in the disclosure letter delivered by EBG to Astoria on the date hereof
(the “EBG Disclosure Letter”), EBG represents and warrants to Astoria as of the date hereof
and as of the Closing Date as follows:

     2.1 Status, etc.

     (a) Organization. Schedule 2.1 (a) of the EBG Disclosure Letter lists all of EBG’s
Subsidiaries and their respective jurisdictions of organization. Each of EBG and its Subsidiaries
is the type of entity indicated on Schedule 2.1 (a) of the EBG Disclosure Letter, duly incorporated
or organized, as applicable, validly existing and in good standing under the laws of the
jurisdiction of its incorporation or organization, and has full corporate or other power and
authority to own, lease and operate its properties and to carry on its business as presently
conducted. Each of EBG and each of its Subsidiaries is duly qualified to do business and in good
standing as a foreign entity in all jurisdictions in which the failure to be so qualified would
have a Material Adverse Effect.

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     (b) Authorization, etc. EBG has full limited liability company power and authority to
enter into this Agreement and, subject to receipt of the Requisite Consent of EBG Members, to
perform its obligations hereunder. The execution, delivery and performance by EBG of this Agreement
have been duly authorized by the Board of Directors of EBG, which, along with the Requisite Consent
of EBG Members, constitutes all requisite limited liability company authorization on the part of
EBG for such action. This Agreement has been duly executed and delivered by EBG and constitutes the
valid and binding obligation of EBG, enforceable against EBG in accordance with its terms, except
as limited by laws affecting the enforcement of creditors’ rights generally or by general equitable
principles. The Board of Directors of EBG, at a meeting duly called and held, duly and adopted
resolutions (i) approving this Agreement, the Mergers and the other transactions
contemplated by this Agreement, (ii) determining that the terms of the Mergers and the
other transactions contemplated by this Agreement are fair and in the best interests of EBG and the
members of EBG, (iii) recommending that the members of EBG adopt this Agreement and approve
the Mergers and (iv) declaring that this Agreement is advisable.

     2.2 Capitalization.

     (a) EBG. As of the date hereof, the authorized capital of EBG consists of an unlimited
number of EBG Units, which may be designated as Class A Units or Class B Units. 3,884,644 Class A
Units and 222,316 Class B Units have been validly issued and are outstanding. Schedule 2.2(a) of
the EBG Disclosure Letter sets forth, as of the date hereof, all Persons owning of record any
outstanding EBG Units and the number and class of EBG Units owned by such Person.

     (b) Subsidiaries. Schedule 2.2(b) of the EBG Disclosure Letter lists for each
Subsidiary of EBG the equity interests of such Subsidiary that are authorized, the equity interests
of such Subsidiary that are issued and outstanding and the Persons owning such issued and
outstanding equity interests. All issued and outstanding equity interests of EBG’s Subsidiaries
have been duly authorized and validly issued, are fully paid and nonassessable and are owned by the
Persons listed in Schedule 2.2(b) of the EBG Disclosure Letter free and clear of any Liens.

     (c) Warrants. As of the date hereof, EBG has granted or issued and has outstanding EBG
Warrants owned by the Persons and relating to the number of EBG Units listed in Schedule 2.2(c) of
the EBG Disclosure Letter.

     (d) Agreements with Respect to EBG Units, etc. Other than as set forth in the
Organizational Documents of EBG, or in Section 2.2(c) hereof, there are no (i) preemptive
or similar rights on the part of any holders of any class of securities of EBG or any of its
Subsidiaries; (ii) subscriptions, options, warrants, conversion, exchange or other rights,
agreements, commitments, arrangements or understandings of

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any kind obligating EBG or any of its Subsidiaries, contingently or otherwise, to issue or sell, or
cause to be issued and sold, any EBG Units of or other equity interest of any class of EBG or any
of its Subsidiaries or any securities convertible into or exchangeable for any such EBG Units or
equity interests; (iii) unitholder agreements, voting trusts or other agreements or
understandings to which EBG or any of its Subsidiaries is a party or to which EBG or any of its
Subsidiaries is bound relating to the voting, purchase, redemption or other acquisition of any EBG
Units or other capital securities of EBG or any of its Subsidiaries; or (iv) outstanding
distributions, whether current or accumulated, due or payable on any of the equity interests of EBG
or any of its Subsidiaries.

     (e) Equity Interests. Except for its Subsidiaries, EBG does not own equity securities
or interests in any other Person. EBG is not a party to any stockholder agreements, voting trusts
or other agreements or understandings relating to the voting, purchase, redemption or other
acquisition of any shares of capital stock or equity interests in any other Person.

     2.3 Conflicts, Consents.

     (a) Conflicts. The execution and delivery of this Agreement by EBG, and the
performance of its obligations hereunder (i) do not conflict with the Organizational
Documents of EBG or any of its Subsidiaries, or (ii) subject to obtaining the Consents
referred to in Section 2.3(b) or Schedule 2.3(b) of the EBG Disclosure Letter, (x) do not
conflict with, violate, breach or result in a default under (with or without the giving of notice
or the lapse of time), give rise to a right of termination, cancellation, modification or
acceleration of any obligation or to the loss of any benefit under, any Permit or any Contract to
which EBG or any of its Subsidiaries is a party or by which any of them or their respective
properties or assets are bound or result in the creation or imposition of any Liens other than
Liens created by or resulting from the actions of Astoria or any of its Affiliates, or (y)
violate any law applicable to EBG or any of its Subsidiaries, except in the case of clauses (x) or
(y) for such conflicts, violations, breaches, defaults, terminations, cancellations, modifications,
accelerations, losses of benefits and Liens that would not, individually or in the aggregate,
reasonably be expected to be material and adverse to EBG and its Subsidiaries, taken as a whole.

     (b) Consents. Except as may be required (i) under the HSR Act, (ii) from FERC
under Section 203 of the Federal Power Act, or (iii) by the NYPSC under Section 70 of the New York
Public Service Law in the absence of a ruling declaring that the NYPSC will not review the Mergers
under Section 70 because the WallKill presumption is satisfied, no Consent of or with any court,
Governmental Entity or third Person is required to be obtained by EBG or any of its Subsidiaries in
connection with the execution and delivery of this Agreement by EBG or the performance of its
obligations hereunder, except where the failure to do so would not, individually or in the
aggregate,

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reasonably be expected to be material and adverse to EBG and its Subsidiaries, taken as a whole.

     2.4 Financial Statements. Schedule 2.4(a) of the EBG Disclosure Letter contains
complete and correct copies of consolidated statements of operations, members’ capital (deficit)
and cash flows of EBG and its Subsidiaries for the fiscal year ended December 31, 2005 and a
consolidated balance sheet of EBG and its Subsidiaries as at such date, together with the notes
thereto (the “EBG Annual Financial Statements”), audited by KPMG LLP, EBG’s certified
public accountants, complete and correct copies of unaudited consolidated statements of operations,
members’ capital (deficit) and cash flows of EBG and its Subsidiaries for the nine months ended
September 30, 2006 and an unaudited consolidated balance sheet of EBG and its Subsidiaries as at
such date (the “EBG September 2006 Financial Statements”) and a preliminary and unaudited
summary consolidated balance sheet of EBG and its Subsidiaries as at December 31, 2006 (the
“EBG Preliminary December 2006 Balance Sheet” and together with the EBG September 2006
Financial Statements, the “EBG Interim Financial Statements”); provided that, with
respect to the EBG Preliminary December 2006 Balance Sheet, no representation or warranty is being
made pursuant to this Section 2.4 to the extent relating to (i) additional adjustments to
reflect the mark-to-market values of assets or liabilities related to any swap or hedge
arrangements of EBG and its Subsidiaries, (ii) the final provision or benefit for income
taxes for 2006, including the amount of any deferred tax asset or deferred tax liability arising
from the difference between book and tax treatment of depreciation of assets and differences in the
timing of recognition of income and expenses for book and tax purposes, or (iii) other
adjustments which may be required (x) in completing the 2006 closing of the accounting
books and records of EBG and its Subsidiaries or (y) as a result of completion of the audit
of the 2006 consolidated financial statements of EBG and its Subsidiaries, none of which are
currently expected to be material. The EBG Interim Financial Statements, together with the EBG
Annual Financial Statements, are the “EBG Financial Statements”. The EBG Financial
Statements have been prepared in accordance with generally accepted accounting principles as
applied in the United States of America (“GAAP”) applied on a consistent basis during the
periods involved (except as otherwise noted therein or herein and except that the EBG Interim
Financial Statements are subject to year-end adjustment and do not contain all footnote disclosures
required by GAAP, which footnote disclosures would either (a) be substantially consistent,
including with respect to amount and contingencies, with the footnotes contained in the EBG Annual
Financial Statements, or (b) not, alone or in the aggregate, be materially adverse to the
business, operations, assets, liabilities, financial condition or results of operations of EBG and
its Subsidiaries taken as a whole) and fairly present in all material respects the consolidated
financial position and the consolidated results of operations and cash flows of EBG and its
consolidated Subsidiaries, as at the dates thereof or for the periods presented therein.

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     2.5 Absence of Undisclosed Liabilities. Except (i) as reflected in the EBG
Financial Statements, (ii) for liabilities and obligations incurred in the ordinary course
of business since December 31, 2005 (none of which is a liability for breach of contract, breach of
warranty, tort, infringement, violation of law or lawsuit) and (iii) for liabilities and
obligations that, individually or in the aggregate, would not reasonably be expected to result in a
Material Adverse Effect, EBG and its Subsidiaries have not incurred any liabilities or obligations
that would be required to be reflected or reserved against in a consolidated balance sheet of EBG
and its consolidated Subsidiaries or the footnotes thereto prepared in accordance with GAAP in a
manner consistent with the EBG Financial Statements.

     2.6 Events Subsequent to Latest Financial Statements. Since December 31, 2005 through
the date hereof, other than in connection with the transactions contemplated by this Agreement, EBG
and its Subsidiaries have conducted their business in the ordinary course, in substantially the
same manner in which it has been previously conducted, EBG and its Subsidiaries have not suffered
any Material Adverse Effect and none of EBG or any of its Subsidiaries has:

     (a) amended its Organizational Documents;

     (b) issued any notes, bonds or other debt securities or any equity securities or rights
convertible, exchangeable or exercisable into any equity securities;

     (c) purchased or redeemed any of its equity securities;

     (d) incurred any long-term indebtedness for borrowed money or entered into any guaranty in
excess of $500,000 in the aggregate, other than revolver borrowings incurred in the ordinary course
of business;

     (e) mortgaged, pledged or subjected to any Lien any of its properties or assets, except for
Permitted Liens;

     (f) made any capital expenditures or commitments therefor that, individually or in combination
with related expenditures or commitments, amount to more than $1,000,000;

     (g) delayed or postponed the payment of accounts payable or commissions or any other liability
or obligation or negotiated with any party to extend the payment date of accounts payable or
commissions or any other liability or obligation or accelerated the collection of (or discounted)
any accounts or notes receivable, except in the case of any of the foregoing, in the ordinary
course of business;

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     (h) except as required by GAAP or required by a change in applicable law, statute, rule or
regulation, made any material change in its accounting principles or the methods by which such
principles are applied for financial accounting purposes;

     (i) except as required by a change in applicable law, made any material change in its Tax
accounting principles or its Tax elections;

     (j) adopted, modified, or terminated any EBG Benefit Plan or EBG Employment Agreement, or
increased the compensation of any officer or employee, other than (i) in the ordinary
course of business, (ii) to comply with applicable law or (iii) as required
pursuant to existing contracts or agreements;

     (k) implemented any plant closing or other layoff of employees that could implicate the Worker
Adjustment and Retraining Notification Act, as amended, or any similar foreign, state or local law,
regulation or ordinance;

     (1) disposed or agreed to dispose of any material properties or assets in an amount in excess
of $500,000 in any individual case or $1,000,000 in the aggregate (in the case of related
dispositions) or acquired or agreed to acquire assets or properties in an amount in excess of
$500,000 in any individual case or $1,000,000 in the aggregate (in the case of related
acquisitions), in each case other than sales of fuel, power or energy, in the ordinary course of
business;

     (m) merged or consolidated with, purchased substantially all of the assets of, or otherwise
acquired any business or any Person;

     (n) materially amended any EBG Material Contract or terminated any material contract, other
than in the ordinary course of business;

     (o) instituted or settled any claim or lawsuit involving equitable or injunctive relief or
damages of more than $1,000,000;

     (p) canceled or forgiven any material debts or claims;

     (q) made any changes to its hedging policies or risk management policies; or

     (r) declared or paid distributions on its equity securities except intercompany dividends and
distributions and tax distributions to its members payable in accordance with its limited liability
company operating agreement.

     2.7 Tax Matters. Except as reflected or reserved against in the EBG Financial
Statements and for matters that would not reasonably be expected to be material, either
individually or in the aggregate, (a) each Tax Return required to have been filed by EBG or
any of its Subsidiaries has been timely filed and each such Tax Return is accurate and

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complete, (b) all Taxes required to be paid by EBG and its Subsidiaries (whether or not
shown as due on such Tax Returns) have been paid, (c) all Employment and Withholding Taxes required
to be paid or withheld by or on behalf of EBG or any of its Subsidiaries have been paid or properly
set aside in accounts for such purpose, (d) no written agreement or other document
extending, or having the effect of extending, the period of assessment or collection of any Taxes
payable by EBG or any of its Subsidiaries is in effect as of the date hereof, (e) neither
EBG nor any of its Subsidiaries is, as of the date hereof, the beneficiary of any extension of time
(other than an automatic extension of time not requiring the consent of the IRS or any other taxing
authority) within which to file any Tax Return not previously filed, (f) as of the date
hereof, there are not pending any audits, examinations or other proceedings in respect of Taxes
payable by EBG or any of its Subsidiaries, (g) neither EBG nor any of its Subsidiaries is a
party to any Tax sharing or Tax allocation agreement with any other Person or has liability for
Taxes of any other Person (other than EBG or any of its Subsidiaries) (I) under Treasury
Regulation § 1.1502-6 (or any similar provision of state, local or foreign Tax law) or (II)
as a transferee or successor, (h) neither EBG nor any of its Subsidiaries has distributed
stock of another Person, or has had its stock distributed by another Person, in a transaction that
was purported or intended to be governed in whole or in part by Code section 355 or 361, and
(i) neither EBG nor any of its Subsidiaries has engaged in a “listed” transaction within
the meaning of Treasury Regulations Section 1.6011-4.

     2.8 Litigation. There is no judicial or administrative action, criminal charge, civil
or criminal complaint, claim, suit, proceeding or investigation pending or, to the Knowledge of
EBG, threatened against EBG or any of its Subsidiaries or any of the EBG Owned Real Property or the
EBG Leased Real Property, in each case, before any Governmental Entity, that (a)
individually or in the aggregate would reasonably be expected to have a Material Adverse Effect or
(b) questions the validity of this Agreement or any action taken or to be taken by EBG or
any of its Subsidiaries in connection herewith.

     2.9 Compliance with Laws; Permits.

     (a) Neither EBG nor any of its Subsidiaries is in, and none of EBG or any of its Subsidiaries
is in receipt of any written notice of any, violation of any law, statute, rule, regulation,
judgment, order, decree, permit, concession, franchise or other governmental authorization or
approval applicable to it or to any of its properties, and EBG and its Subsidiaries have complied
in all material respects with all laws, statutes, riles, regulations, judgments, orders, decrees,
permits, concessions, franchises, and other governmental authorizations or approvals applicable to
it or its properties, except, for any such violations or non-compliance which would not,
individually or in the aggregate, reasonably be expected to be material to EBG and its
Subsidiaries, taken as a whole.

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     (b) All of the licenses, permits and other governmental authorizations necessary to conduct
the business of EBG and its Subsidiaries as presently conducted (collectively, the “EBG
Permits”) have been duly obtained, are held by EBG or its Subsidiaries and are in full force
and effect, except in each case where such a failure would not reasonably be expected to have a
Material Adverse Effect. No event has occurred or other fact exists with respect to the Permits
that allows, or after notice or lapse of time or both would allow, revocation or termination of any
of the Permits or would result in any other impairment of the rights of the holder of any of the
Permits that individually or in the aggregate would reasonably be expected to have a Material
Adverse Effect.

     (c) This Section 2.9 does not relate to tax matters, employee benefits matters or
environmental matters, which are provided for in Sections 2.7, 2.1l and 2.17, respectively.

     2.10 Regulatory Status.

     (a) Schedule 2.10(a) of the EBG Disclosure Letter sets forth, the name, location, nominal
capacity and EBG’s direct or indirect ownership of each generating facility owned directly or
indirectly, in whole or in part, by EBG or any of its Subsidiaries (the “EBG Facilities”).
Each of the EBG Project Company Subsidiaries meets the requirements for, and has made the necessary
filing with, or has been determined by, FERC to be an exempt wholesale generator (“EWG”)
within the meaning of Section 1262(6) of PUHCA. Each of BG and the EBG Project Company Subsidiaries
is authorized by FERC pursuant to Section 205 of the FPA to sell electric power, including energy
and capacity and ancillary services, at market-based rates and has received such waivers and
blanket authorizations as are customarily granted by FERC to entities authorized to sell electric
power at market-based rates, including, but not limited to, authorization to issue securities and
assume obligations or liabilities pursuant to Section 204 of the FPA.

     (b) There are no pending FERC proceedings in which the EWG status (as applicable),
market-based rate authority or the FPA Section 204 authority of BG or any EBG Project Company
Subsidiary is subject to withdrawal, revocation or material modification other than (i) FERC
rulemakings of general applicability, including, but not limited to, Market-Based Rates for
Wholesale Sales of Energy, Capacity and Ancillary Services by Public Utilities in Docket No.
RM04-7-000 and (ii) FERC proceedings concerning ISO New England market rules including, but not
limited to, market mitigation measures as may apply to BG or such EBG Project Company Subsidiary
and similarly situated sellers of wholesale electric power with market-based rates.

     (c) EBG, BG and each EBG Project Company Subsidiary is in full compliance in all material
respects with the terms and conditions of all orders issued by

14

 

FERC under Section 203 of the FPA and obtained by EBG, BG or any EBG Project Company Subsidiary.

     (d) Each of EBG and BG is a “holding company” within the meaning of Section 1262(8) of PUHCA
solely with respect to its ownership of one or more EWGs, and is not subject to or is otherwise
exempt from regulation under PUHCA except for regulation under Section 1265 of PUHCA.

     (e) EBG and each of its Subsidiaries has filed or caused to be filed with the applicable state
or local utility commissions or utility regulatory bodies and the FERC, all material forms,
statements, reports and documents (including all exhibits, amendments and supplements thereto)
required to be filed by it with respect to EBG and each of its Subsidiaries’ businesses and each
EBG Facility under all applicable laws and PUHCA and the respective rules and regulations
thereunder, all of which complied in all material respects with all applicable requirements of the
appropriate act and the rules and regulations thereunder in effect on the date each such report was
filed.

     (f) No order, judgment or decree shall have been issued or proposed to be issued by any
Governmental Entity that, as a result of the construction, ownership, leasing or operation of any
EBG Facility by EBG or any of its Subsidiaries, the sale of electricity therefrom by BG or the EBG
Project Company Subsidiaries, or any transaction contemplated hereby, could reasonably be expected
to cause or deem EBG or any of its Subsidiaries to be subject to, and not exempted from, regulation
under PUHCA, except for regulation under Section 1265 of PUHCA.

     (g) EBG has disclosed to Astoria all information regarding EBG and each of its Subsidiaries,
their respective businesses, financial conditions and corporate governance, directors, officers and
affiliates, any agreements and arrangements among such Persons regarding their direct and indirect
interests in EBG and each of its Subsidiaries and the allocation among such Persons of economic and
management rights relating to EBG and its Subsidiaries that could be reasonably expected to affect
the ability of the parties to obtain any approval, Consent or authorization of any Governmental
Entity under the FPA or any other federal, state or local energy law or regulation (including any
Section 203 approval) or to make any requisite filing with any Governmental Entity under the FPA or
any other federal, state or local energy law or regulation, in any case necessary for or required
as a result of the execution, delivery and performance of this Agreement.

     2.11 Employee Benefits.

     (a) Company Benefit Plans; Employment Agreements. Schedule 2.11 (a)(i) of the EBG
Disclosure Letter contains a complete and accurate list of each material Plan that is maintained,
contributed to or established by EBG or any of its ERISA Affiliates or

15

 

under which any such Person has any current or contingent obligation and under which any current or
former officer, director, consultant or employee of EBG or any of its ERISA Affiliates, or the
beneficiaries or dependents of any such person, is or will become eligible to participate or derive
a benefit (“EBG Benefit Plans”). Schedule 2.1 l(a)(ii) of the EBG Disclosure Letter sets
forth all written employment, severance and retention agreements other than any such agreement
(x) that, by its terms, may be terminated or canceled by EBG or any Subsidiary with notice
of not more than the greater of 120 days and the period of notice required under applicable law, in
each case without penalty and (y) providing for the payment of annual salary and bonus or
severance payments less than $250,000 in any one case (“EBG Employment Agreements”).

     (b) Compliance; Liability. Each EBG Benefit Plan has been operated and administered in
accordance with its terms and with applicable law, except for any failure to do so that would not
reasonably be expected to have a Material Adverse Effect. All contributions required to have been
made by EBG and its Subsidiaries under any EBG Benefit Plan have been made by the due date therefor
(including any extensions). There is no pending or, to the Knowledge of EBG, threatened material
legal action, suit or claim relating to EBG Benefit Plans (other than routine claims for benefits).
EBG and its ERISA Affiliates have engaged in no transaction with respect to any EBG Benefit Plan
that, assuming the taxable period of such transaction has expired as of the date hereof, would
reasonably be expected to subject EBG and its Subsidiaries to a tax or penalty imposed by either
section 4975 of the Code or section 502(i) of ERISA that would reasonably be expected to have a
Material Adverse Effect. Neither EBG nor any of its Subsidiaries is in breach of any EBG Employment
Agreement.

     (c) Tax Qualification. Each EBG Benefit Plan that is intended to be qualified under
section 401(a) of the Code has received a favorable determination letter from the IRS as to its
qualification under the Code and to the effect that each such trust is exempt from taxation under
section 501(a) of the Code, and, to the Knowledge of EBG, nothing has occurred since the date of
such determination letter that will adversely affect such qualification or tax-exempt status.

     (d) Title IV of ERISA. Neither EBG nor any ERISA Affiliate has incurred any material
liability under Title IV of ERISA or is subject to section 302 of ERISA or section 412 of the Code,
and no event, transaction or condition exists that would result in any material liability to the
EBG Surviving Company or any ERISA Affiliate following the Closing. No EBG Benefit Plan is or was a
plan subject to Code section 412 or section 302 or Title IV of ERISA, a “multiemployer plan” as
defined in section 3(37) of ERISA, or “multiple employer plan” under section 4063 of ERISA.

     (e) Triggering Events. Neither the execution of this Agreement nor the performance of
the obligations hereunder by EBG or its Subsidiaries shall by itself or in

16

 

connection with any other event require a payment, or cause the accelerated vesting or timing of a
right to a payment, under any EBG Benefit Plan or under any EBG Employment Agreement. The
performance of the obligations hereunder by EBG or its Subsidiaries will not, by itself or in
connection with other events, result in any payment under any EBG Benefit Plan or under any EBG
Employment Agreement that would constitute an “excess parachute payment” for purposes of section
280G or 4999 of the Code.

     (f) Documents. With respect to each EBG Benefit Plan, EBG has made available to
Astoria true and complete copies of the following documents, to the extent applicable: (i)
the most recent Plan document and all amendments thereto; (ii) the most recent trust
instrument and insurance contracts and any other funding or investment agreements; (iii)
the Form 5500 and accompanying schedules for the current year and the immediately preceding three
years filed with the IRS; (iv) the most recent summary plan description; and (v)
the most recent determination letter issued by the IRS. EBG has made available to Astoria true and
complete copies of EBG Employment Agreements.

     (g) Neither EBG nor any of its Subsidiaries or ERISA Affiliates has any obligation to provide
health benefits or other benefits to retired or other former employees, except as specifically
required by section 4980B of the Code or Part 6 of Title I of ERISA, and EBG and each of its
Subsidiaries or ERISA Affiliates has complied in all material respects with the requirements of
Code section 4980B and such Part 6. Schedule 2.1l(g) of the EBG Disclosure Letter sets forth a list
of all employees on or eligible for COBRA.

     2.12 Labor Matters. No labor strike, material labor dispute, or concerted work
stoppage is currently pending or, to the Knowledge of EBG, threatened with respect to any employee
of EBG or its Subsidiaries. Each of EBG and its Subsidiaries is in compliance with all applicable
labor laws in connection with the employment of its employees, except for such non-compliance that
individually or in the aggregate would not reasonably be expected to have a Material Adverse
Effect. None of EBG or any of its Subsidiaries is party to or bound by any Contract or other
agreement with any labor union representing its employees or collective bargaining agreement and,
to the Knowledge of EBG, there are no activities or proceedings of any labor union to organize any
such employees.

     2.13 Real Property; Tangible Property.

     (a) Schedule 2.13(a) of the EBG Disclosure Letter lists all material items of real property
either owned by EBG or its Subsidiaries (the “EBG Owned Real Property”) or leased by EBG or
its Subsidiaries (the “EBG Leased Real Property”). EBG and its Subsidiaries have good and
marketable fee simple title to the EBG Owned Real Property listed on Schedule 2.13(a) and valid
leasehold interests in the EBG Leased Real Property

17

 

listed on Schedule 2.13(a), in each case free and clear of all Liens except for Permitted Liens.
None of EBG or any of its Subsidiaries owns or holds, has granted or is obliged under any
contractual right to purchase, acquire, sell or dispose of any EBG Owned Real Property. None of EBG
or any of its Subsidiaries is obligated under any agreement to purchase or acquire any EBG Leased
Real Property.

     (b) The EBG Owned Real Property and the EBG Leased Real Property, together with easements
appurtenant thereto, include all of the material real property used or held for use in connection
with or otherwise required to carry on the business of EBG and its Subsidiaries, as currently
conducted.

     (c) Schedule 2.13(c) of the EBG Disclosure Letter contains a complete and correct list of all
real property leases relating to the EBG Leased Real Property to which EBG or any of its
Subsidiaries is a party or is bound (the “EBG Leases”). EBG has made available to Astoria
correct and complete copies of the EBG Leases, including all amendments, modifications, and
extensions thereto and guarantees thereof. Under each of the EBG Leases, the tenant thereunder
enjoys peaceful and undisturbed possession of and has the exclusive right to use and occupy its
respective EBG Leased Real Property. Each of the EBG Leases (including any option to purchase
contained therein) is in full force and effect and, to the Knowledge of EBG, is enforceable against
the landlord which is party thereto in accordance with its terms, and there exists no default or
event of default (or any event that with notice or lapse of time or both would become a default) on
the part of EBG or any of its Subsidiaries under any EBG Leases, except for such failures to be in
full force and effect and defaults as would not, individually or in the aggregate, reasonably be
expected to have or result in a Material Adverse Effect.

     (d) EBG and its Subsidiaries have legal and beneficial ownership of all of their respective
tangible personal property and assets included in the EBG Financial Statements for the fiscal year
ended December 31, 2005, except for properties and assets disposed of in the ordinary course of
business since December 31, 2005, in each case free and clear of all Liens other than Permitted
Liens. Except as would not reasonably be expected to have a Material Adverse Effect, EBG and its
Subsidiaries own or have the right to use all of the properties and assets necessary for the
conduct of their business as currently conducted. Each such tangible asset has been maintained in
accordance with normal industry practice, is in good operating condition and repair (subject to
normal wear and tear) and is suitable for the purpose for which it is currently used.

     (e) Each parcel included in EBG Owned Real Property is assessed for real property tax purposes
as a wholly-independent tax lot, separate and apart from any adjoining land or improvements not
constituting a part of that parcel.

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     2.14 Intellectual Property.

     (a) Schedule 2.14(a) of the EBG Disclosure Letter lists all material trademarks, trade names,
service marks, copyrights and patents that, as of the date hereof, are registered or subject to an
application for registration (collectively, “Intellectual Property”) that are owned by EBG
or any of its Subsidiaries and are material to the conduct of the business of EBG or any of its
Subsidiaries, as currently conducted (“EBG Owned Intellectual Property”). EBG and its
Subsidiaries have taken commercially reasonable steps in accordance with normal industry practice
to protect and maintain in force the EBG Owned Intellectual Property and to protect the
confidentiality of trade secrets used in the operation of the business. Except for infringements,
claims, demands, proceedings and defects in rights that would not, individually or in the
aggregate, reasonably be expected to have or result in a Material Adverse Effect, (i) to
the Knowledge of EBG, the use of the EBG Owned Intellectual Property by EBG and its Subsidiaries as
currently used does not infringe on the Intellectual Property rights of any Person and (ii)
there is no claim or demand of any Person pertaining to, or any proceeding that is pending or, to
the Knowledge of EBG, threatened that challenges the rights of EBG or any of its Subsidiaries in
respect of, any EBG Owned Intellectual Property.

     (b) Schedule 2.14(b) of the EBG Disclosure Letter lists all material written licenses to
Intellectual Property or trade secrets (other than licenses for “off-the-shelf software) to which
EBG or any of its Subsidiaries is a party, pursuant to which (i) EBG or such Subsidiary
permits any Person to use any of the EBG Owned Intellectual Property or trade secrets owned by EBG
or such Subsidiary, or (ii) any Person permits EBG or such Subsidiary to use any
Intellectual Property or trade secrets not owned by EBG or such Subsidiary that are necessary for
the conduct of the business of EBG or any of its Subsidiaries as currently conducted (collectively,
the “EBG Licenses”). EBG has made available to Astoria copies of all of the EBG Licenses.
Neither EBG nor any of its Subsidiaries, nor, to the Knowledge of EBG, any other party thereto, is
in default under any EBG License, and each EBG License is in full force and effect as to EBG or
Subsidiary thereof party thereto and, to the Knowledge of EBG, as to each other party thereto,
except for such defaults and failures to be so in full force and effect as would not, individually
or in the aggregate, reasonably be expected to have or result in a Material Adverse Effect.

     2.15 Contracts. Schedule 2.15 of the EBG Disclosure Letter lists, as of the date
hereof, all EBG Material Contracts (other than Organizational Documents of any of the Subsidiaries,
agreements related to employee benefits, agreements related to labor matters, real property leases
and agreements related to intellectual property, the last four of which are provided for in
Sections 2.11, 2.12, 2.13, and 2.14, respectively). The term “EBG Material Contracts” means
all of the following types of Contracts to which EBG or

19

 

any of its Subsidiaries is a party or by which EBG or any of its Subsidiaries or any of their
respective properties is bound as of the date hereof:

     (a) all material gas pipeline interconnection agreements, gas supply agreements, gas
purchase and sale agreements and gas transportation agreements;

     (b) all material fuel, supply or transportation agreements (including fuel and oil
transportation agreements);

     (c) all power purchase agreements (involving more than 10% of any EBG Facility’s nominal
capacity or having a term of more than one month) and all material water supply agreements,
wastewater disposal agreements, any waste disposal agreements, electricity transmission
agreements and electricity interconnection agreements;

     (d) all material swap, exchange, commodity option or hedging agreements or similar
arrangements;

     (e) all material operating and maintenance agreements, management agreements,
administrative services agreements and long term service agreements;

     (f) all Contracts (other than ordinary course maintenance Contracts) requiring a future
capital expenditure or known commitment by EBG or any of its Subsidiaries in excess of
$1,000,000 in any twelve month period;

     (g) all contracts requiring known or liquidated expenditures or payments to or from EBG
or any of its Subsidiaries in excess of $1,000,000 in any calendar year, other than those that
can be terminated without material penalty to EBG or any of its Subsidiaries, as applicable,
upon not more than sixty (60) days’ notice;

     (h) all contracts or agreements under which the EBG or any of its Subsidiaries is
obligated to sell real or personal property having a value in excess of $1,000,000;

     (i) mortgages, indentures, loan or credit agreements, security agreements, and other
agreements and instruments relating to the borrowing of money or extension of credit in any
case in excess of $1,000,000;

     (j) joint venture and limited partnership agreements (other than limited partnerships of
which EBG owns 100% of the partnership interests);

20

 

     (k) all contracts to which EBG or any of its Subsidiaries is party that contain a
covenant not to compete applicable to EBG or any of its Subsidiaries or their respective
Affiliates or otherwise restrict any of EBG or any of its Subsidiaries or their respective
Affiliates from engaging in any line of business in the electricity or power industry or
generating, developing or distributing, or other rights with respect to, electricity or power
(other than term loan agreements, indentures or similar financing contracts typical to the
electricity or power industry containing customary restrictive covenants);

     (1) stock purchase agreements, asset purchase agreements and other acquisition or
divestiture agreements relating to the acquisition, lease or disposition by EBG or its
Subsidiaries of material assets and properties (other than in the ordinary course of business)
or any equity interest of EBG or its Subsidiaries, in each case which was entered into by EBG
or its Subsidiaries after December 31, 2005 or under which EBG or its Subsidiaries has any
executory indemnification obligations;

     (m) credit support guarantees, letters of credit or other agreements by which EBG or any
of its Subsidiaries guarantees or otherwise provides support for the obligations of another
Person other than EBG or any of its Subsidiaries, in each case with respect to amounts in
excess of $1,000,000; and

     (n) securityholder agreements, voting trusts or other agreements or understandings to
which EBG or any of its Subsidiaries is a party or to which EBG or any of its Subsidiaries is
bound relating to the voting, purchase, redemption or other acquisition of any equity
securities of EBG or any of its Subsidiaries.

EBG has made available to Astoria copies of all of the EBG Material Contracts. Each such EBG
Material Contract is a valid and binding agreement of EBG or one of its Subsidiaries and, to the
Knowledge of EBG, the counterparty thereto, and is in full force and effect, and neither EBG nor
any of its Subsidiaries nor, to the Knowledge of EBG, any other Person is in default under any EBG
Material Contract, except for such failures to be in full force and effect and defaults as would
not, individually or in the aggregate, reasonably be expected to have or result in a Material
Adverse Effect.

     2.16 Insurance. Schedule 2.16 of the EBG Disclosure Letter lists all of the policies
of insurance, other than real property title insurance policies, maintained by EBG or any of its
Subsidiaries for the policy year that includes the date hereof. Each such policy is in full force
and effect. All policy premiums due and payable with respect to all periods specified in Schedule
2.16 of the EBG Disclosure Letter have either been paid or adequate provision for the payment by
EBG or a Subsidiary thereof has been made. Neither EBG nor any of its Subsidiaries has received any
written notice of any material

21

 

increase of premiums with respect to, or cancellation or non-renewal of, any of such insurance
policies.

     2.17 Environmental Matters. Except as would not, individually or in the aggregate,
reasonably be expected to have or result in a Material Adverse Effect:

     (a) EBG and its Subsidiaries are and have been in compliance with all applicable
Environmental Laws;

     (b) EBG and its Subsidiaries have obtained, and are in compliance with, all permits,
licenses and other authorizations required under applicable Environmental Laws for their
operations and the ownership of the EBG Owned Real Property and the occupation of the EBG
Leased Real Property;

     (c) neither EBG nor any of its Subsidiaries has received from any Person any written
notice of violation, alleged violation, non-compliance, liability or potential liability under
Environmental Laws, other than matters that have been settled and resolved without future
obligation;

     (d) no complaint, claim, suit, investigation, judicial proceeding or governmental or
administrative action is pending, or to the Knowledge of EBG, threatened, under any applicable
Environmental Law relating to EBG or any of its Subsidiaries, the EBG Owned Real Property or
the EBG Leased Real Property;

     (e) neither EBG nor any of its Subsidiaries has any liability with respect to, or any
obligation to investigate or remediate any condition resulting from the release or threatened
release of Hazardous Substances; and

     (f) none of the EBG Owned Real Property or the EBG Leased Real Property is subject to any
activity or use restriction, or other deed restriction, that was implemented pursuant to any
Environmental Law or as a result of the presence or remediation of Hazardous Substances, and
that would reasonably be expected to limit, hinder or interfere with the current or future
operations at such real property.

EBG has provided to Astoria all environmental site assessments, audits, investigations and studies
in the possession, custody or control of EBG or any of its Subsidiaries relating to properties or
assets currently or formerly owned, leased, or operated by EBG or any of its Subsidiaries.

     Notwithstanding any of the representations and warranties contained elsewhere in this
Agreement, matters arising under Environmental Laws shall be governed exclusively by this Section
2.17.

22

 

     2.18 Affiliate Transactions. Except for any such agreements among EBG and its wholly
owned subsidiaries, neither EBG nor any of its Subsidiaries is a party to any agreement with any
Affiliate or any member of EBG.

     2.19 Brokers. Other than with respect to Lehman Brothers whose fees and expenses will
be paid by the EBG Surviving Company, all negotiations relating to this Agreement and the
transactions contemplated hereby have been carried out without the intervention of any Person
acting on behalf of EBG in such manner as to give rise to any valid claim against USPowerGenCo, the
Astoria Surviving Company or the EBG Surviving Company for any brokerage or finder’s commission,
fee or similar compensation.

     2.20 Formation of USPowerGenCo, Astoria MergerCo and EBG MergerCo; No Prior
Activities. Each of USPowerGenCo, Astoria MergerCo and EBG MergerCo was formed solely for the
purpose of engaging in the transactions contemplated by this Agreement. As of the date hereof and
the Closing Date, except for (i) obligations or liabilities incurred in connection with its
incorporation or organization and the transactions contemplated by this Agreement and (ii)
this Agreement and any other agreements or arrangements contemplated by this Agreement or in
furtherance of the transactions contemplated hereby, none of USPowerGenCo, Astoria MergerCo and EBG
MergerCo has incurred, directly or indirectly, through any Subsidiary or Affiliate, any obligations
or liabilities or engaged in any business activities of any type or kind whatsoever or entered into
any agreements or arrangements with any Person.

     2.21 Appraisal Rights. No member of EBG shall have any appraisal or similar rights as
a result of the EBG Merger.

ARTICLE III

REPRESENTATIONS AND WARRANTIES OF

ASTORIA

          Except as set forth in the disclosure letter delivered by Astoria to EBG on the date hereof
(the “Astoria Disclosure Letter”), Astoria represents and warrants to EBG as of the date
hereof and as of the Closing Date as follows:

     3.1 Status, etc.

     (a) Organization. Schedule 3.1(a)of the Astoria Disclosure Letter lists all of
Astoria’s Subsidiaries and their respective jurisdictions of organization. Each of Astoria and its
Subsidiaries is the type of entity indicated on Schedule 3.1 (a) of the Astoria Disclosure Letter,
duly incorporated or organized, as applicable, validly existing and in good standing under the laws
of the jurisdiction of its incorporation or organization, and

23

 

has full corporate or other power and authority to own, lease and operate its properties and to
carry on its business as presently conducted. Each of Astoria and each of its Subsidiaries is duly
qualified to do business and in good standing as a foreign entity in all jurisdictions in which the
failure to be so qualified would have a Material Adverse Effect.

     (b) Authorization, etc. Astoria has full limited liability company power and authority
to enter into this Agreement and to perform its obligations hereunder. The execution, delivery and
performance by Astoria of this Agreement have been duly authorized by the Board of Directors of
Astoria and the unanimous consent of all members of Astoria, which constitute all requisite limited
liability company authorization on the part of Astoria for such action. This Agreement has been
duly executed and delivered by Astoria and constitutes the valid and binding obligation of Astoria,
enforceable against Astoria in accordance with its terms, except as limited by laws affecting the
enforcement of creditors’ rights generally or by general equitable principles.

     3.2 Capitalization.

     (a) Astoria. As of the date hereof, the authorized capital of Astoria consists of
32,001,086 total Astoria Units, of which 32,000,000 are designated Series A Voting Common Units and
1,086 are designated Series B Nonvoting Common Units. 31,440,000 Series A Voting Common Units and
1,086 Series B Nonvoting Common Units have been validly issued and are outstanding. Schedule 3.2(a)
of the Astoria Disclosure Letter sets forth, as of the date hereof, all Persons owning of record
any outstanding Astoria Units and the number and series of Astoria Units owned by such Person.
Immediately prior to the Closing and after giving effect to the Exchange, New Astoria shall own all
outstanding Astoria Units and each member of New Astoria shall own the same number and series of
New Astoria units as the number and series of Astoria Units owned by such member immediately prior
to the Exchange.

     (b) Subsidiaries. Schedule 3.2(b) of the Astoria Disclosure Letter lists for each
Subsidiary of Astoria the equity interests of such Subsidiary that are authorized, the equity
interests of such Subsidiary that are issued and outstanding and the Persons owning such issued and
outstanding equity interests. All issued and outstanding equity interests of Astoria’s Subsidiaries
have been duly authorized and validly issued, are fully paid and nonassessable and are owned by the
Persons listed in Schedule 3.2(b) of the Astoria Disclosure Letter free and clear of any Liens.

     (c) Agreements with Respect to Astoria Units, etc. Other than as set forth in the
Organizational Documents of Astoria and the Exchange Agreement, there are no (i) preemptive
or similar rights on the part of any holders of any class of securities of Astoria or any of its
Subsidiaries; (ii) subscriptions, options, warrants, conversion, exchange or other rights,
agreements, commitments, arrangements or understandings of any kind obligating Astoria or any of
its Subsidiaries, contingently or otherwise, to issue

24

 

or sell, or cause to be issued and sold, any Astoria Units of or other equity interest of any class
of Astoria or any of its Subsidiaries or any securities convertible into or exchangeable for any
such Astoria Units or equity interests; (iii) unitholder agreements, voting trusts or other
agreements or understandings to which Astoria or any of its Subsidiaries is a party or to which
Astoria or any of its Subsidiaries is bound relating to the voting, purchase, redemption or other
acquisition of any Astoria Units or other capital securities of Astoria or any of its Subsidiaries;
or (iv) outstanding distributions, whether current or accumulated, due or payable on any of
the equity interests of Astoria or any of its Subsidiaries.

     (d) Equity Interests. Except for its Subsidiaries, Astoria does not own equity
securities or interests in any other Person. Astoria is not a party to any stockholder agreements,
voting trusts or other agreements or understandings relating to the voting, purchase, redemption or
other acquisition of any shares of capital stock or equity interests in any other Person.

     3.3 Conflicts, Consents.

     (a) Conflicts. The execution and delivery of this Agreement by Astoria, and the
performance of its obligations hereunder (i) do not conflict with the Organizational
Documents of Astoria or any of its Subsidiaries, or (ii) subject to obtaining the Consents
referred to in Section 3.3(b) or Schedule 3.3(b) of the Astoria Disclosure Letter, (x) do
not conflict with, violate, breach or result in a default under (with or without the giving of
notice or the lapse of time), give rise to a right of termination, cancellation, modification or
acceleration of any obligation or to the loss of any benefit under, any Permit or any Contract to
which Astoria or any of its Subsidiaries is a party or by which any of them or their respective
properties or assets are bound or result in the creation or imposition of any Liens other than
Liens created by or resulting from the actions of EBG or any of its Affiliates, or (y)
violate any law applicable to Astoria or any of its Subsidiaries, except in the case of clauses (x)
or (y) for such conflicts, violations, breaches, defaults, terminations, cancellations,
modifications, accelerations, losses of benefits and Liens that would not, individually or in the
aggregate, reasonably be expected to be material and adverse to Astoria and its Subsidiaries, taken
as a whole.

     (b) Consents. Except as may be required (i) under the HSR Act, (ii)
from the FERC under Section 203 of the Federal Power Act, or (iii) by the NYPSC under
Section 70 of the New York Public Service Law in the absence of a ruling declaring that the NYPSC
will not review the Mergers under Section 70 because the Wallkill presumption is satisfied, no
Consent of or with any court, Governmental Entity or third Person is required to be obtained by
Astoria or any of its Subsidiaries in connection with the execution and delivery of this Agreement
by Astoria or the performance of its obligations hereunder, except where the failure to do so would
not, individually or in the aggregate,

25

 

reasonably be expected to be material and adverse to Astoria and its Subsidiaries, taken as a
whole.

     3.4 Financial Statements. Schedule 3.4(a) of the Astoria Disclosure Letter contains
complete and correct copies of consolidated statements of operations, changes in unitholder’s
equity and cash flows of Astoria and its Subsidiaries for the fiscal year ended December 31, 2005
and a consolidated balance sheet of Astoria and its Subsidiaries as at such date, together with the
notes thereto (the “Astoria Annual Financial Statements”), audited by KPMG LLP, Astoria’s
certified public accountants at such date and for such period, and complete and correct copies of
unaudited consolidated statements of operations, changes in unitholders’ equity and cash flows of
Astoria and its Subsidiaries for the period beginning February 24, 2006 and ended September 30,
2006 and an unaudited consolidated balance sheet of Astoria and its Subsidiaries as at September
30, 2006 (the “Astoria September 2006 Financial Statements”) and an unaudited summary
consolidated balance sheet of Astoria and its Subsidiaries as at December 31, 2006 (the
“Astoria December 2006 Balance Sheet” and together with the Astoria September 2006
Financial Statements, the “Astoria Interim Financial Statements”); provided that,
with respect to the Astoria December 2006 Balance Sheet, no representation or warranty is being
made pursuant to this Section 3.4 to the extent relating to (i) additional adjustments to
reflect the mark-to-market values of assets or liabilities related to any swap or hedge
arrangements of Astoria and its Subsidiaries, (ii) the final provision or benefit for
income taxes for 2006, including the amount of any deferred tax asset or deferred tax liability
arising from the difference between book and tax treatment of depreciation of assets and
differences in the timing of recognition of income and expenses for book and tax purposes, or
(iii) other adjustments which may be required (x) in completing the 2006 closing of
the accounting books and records of Astoria and its Subsidiaries or (y) as a result of
completion of the audit of the 2006 consolidated financial statements of Astoria and its
Subsidiaries, none of which are currently expected to be material. The Astoria Interim Financial
Statements, together with the Astoria Annual Financial Statements, are the “Astoria Financial
Statements”. The Astoria Financial Statements have been prepared in accordance with GAAP
applied on a consistent basis during the periods involved (except as otherwise noted therein or
herein and except that the Astoria Interim Financial Statements are subject to year-end adjustment
and do not contain all footnote disclosures required by GAAP, which footnote disclosures would
either (a) be substantially consistent, including with respect to amount and contingencies,
with the footnotes contained in the Astoria Annual Financial Statements, or (b) not, alone
or in the aggregate, be materially adverse to the business, operations, assets, liabilities,
financial condition or results of operations of Astoria and its Subsidiaries taken as a whole) and
fairly present in all material respects the consolidated financial position and the consolidated
results of operations and cash flows of Astoria and its consolidated Subsidiaries, as at the dates
thereof or for the periods presented therein.

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     3.5 Absence of Undisclosed Liabilities. Except (i) as reflected in the Astoria
Financial Statements, (ii) for liabilities and obligations incurred in the ordinary course
of business since February 24, 2006 (none of which is a liability for breach of contract, breach of
warranty, tort, infringement, violation of law or lawsuit) and (iii) for liabilities and
obligations that, individually or in the aggregate, would not reasonably be expected to result in a
Material Adverse Effect, Astoria and its Subsidiaries have not incurred any liabilities or
obligations that would be required to be reflected or reserved against in a consolidated balance
sheet of Astoria and its consolidated Subsidiaries or the footnotes thereto prepared in accordance
with GAAP in a manner consistent with the Astoria Financial Statements.

     3.6 Events Subsequent to Latest Financial Statements. Since February 24, 2006 through
the date hereof, other than in connection with the transactions contemplated by this Agreement,
Astoria and its Subsidiaries have conducted their business in the ordinary course, in substantially
the same manner in which it has been previously conducted, Astoria and its Subsidiaries have not
suffered any Material Adverse Effect and none of Astoria or any of its Subsidiaries has:

     (a) amended its Organizational Documents;

     (b) issued any notes, bonds, or other debt securities or any equity securities or rights
convertible, exchangeable or exercisable into any equity securities;

     (c) purchased or redeemed any of its equity securities;

     (d) incurred any long-term indebtedness for borrowed money or entered into any guaranty in
excess of $500,000 in the aggregate, other than revolver borrowings incurred in the ordinary course
of business;

     (e) mortgaged, pledged or subjected to any Lien any of its properties or assets, except for
Permitted Liens;

     (f) made any capital expenditures or commitments therefor that, individually or in combination
with related expenditures or commitments, amount to more than $1,000,000;

     (g) delayed or postponed the payment of accounts payable or commissions or any other liability
or obligation or negotiated with any party to extend the payment date of accounts payable or
commissions or any other liability or obligation or accelerated the collection of (or discounted)
any accounts or notes receivable except, in the case of any of the foregoing, in the ordinary
course of business;

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     (h) except as required by GAAP or required by a change in applicable law, statute, rule or
regulation, made any material change in its accounting principles or the methods by which such
principles are applied for financial accounting purposes;

     (i) except as required by a change in applicable law, made any material change in its Tax
accounting principles or its Tax elections;

     (j) adopted, modified, or terminated any Astoria Benefit Plan or Astoria Employment Agreement,
or increased the compensation of any officer or employee, other than (i) in the ordinary
course of business, (ii) to comply with applicable law or (iii) as required
pursuant to existing contracts or agreements;

     (k) implemented any plant closing or other layoff of employees that could implicate the Worker
Adjustment and Retraining Notification Act, as amended, or any similar foreign state or local law,
regulation or ordinance;

     (1) disposed or agreed to dispose of any material properties or assets in an amount in excess
of $500,000 in any individual case or $1,000,000 in the aggregate (in the case of related
dispositions) or acquired or agreed to acquire assets or properties in an amount in excess of
$500,000 in any individual case or $1,000,000 in the aggregate (in the case of related
acquisitions), in each case other than sales of fuel, power or energy, in the ordinary course of
business;

     (m) merged or consolidated with, purchased substantially all of the assets of, or otherwise
acquired any business or any Person;

     (n) materially amended any Astoria Material Contract or terminated any material contract,
other than in the ordinary course of business;

     (o) instituted or settled any claim or lawsuit involving equitable or injunctive relief or
damages of more than $1,000,000;

     (p) canceled or forgiven any material debts or claims;

     (q) made any changes to its hedging policies or risk management policies; or

     (r) declared or paid distributions on its equity securities except intercompany dividends and
distributions and tax distributions to its members payable in accordance with its limited liability
company operating agreement.

     3.7 Tax Matters. Except as reflected or reserved against in the Astoria Financial
Statements and for matters that would not reasonably be expected to be material, either
individually or in the aggregate, (a) each Tax Return required to have been filed by
Astoria or any of its Subsidiaries has been timely filed and each such Tax

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Return is accurate and complete, (b) all Taxes required to be paid by Astoria and its
Subsidiaries (whether or not shown as due on such Tax Returns have been paid, (c) all
Employment and Withholding Taxes required to be paid or withheld by or on behalf of Astoria or any
of its Subsidiaries have been paid or properly set aside in accounts for such purpose, (d)
no written agreement or other document extending, or having the effect of extending, the period of
assessment or collection of any Taxes payable by Astoria or any of its Subsidiaries is in effect as
of the date hereof, (e) neither Astoria nor any of its Subsidiaries is, as of the date
hereof, the beneficiary of any extension of time (other than an automatic extension of time not
requiring the consent of the IRS or any other taxing authority) within which to file any Tax Return
not previously filed, (f) as of the date hereof, there are not pending any audits,
examinations or other proceedings in respect of Taxes payable by Astoria or any of its
Subsidiaries, (g) neither Astoria nor any of its Subsidiaries is a party to any Tax sharing
or Tax allocation agreement with any other Person or has liability for Taxes of any other Person
(other than Astoria or any of its Subsidiaries) (I) under Treasury Regulation §1.1502-6 (or
any similar provision of state, local or foreign Tax law) or (II) as a transferee or
successor, (h) neither Astoria nor any of its Subsidiaries has distributed stock of another
Person, or has had its stock distributed by another Person, in a transaction that was purported or
intended to be governed in whole or in part by Code section 355 or 361, and (i) neither
Astoria nor any of its Subsidiaries has engaged in a “listed” transaction within the meaning of
Treasury Regulations Section 1.6011-4.

     3.8 Litigation. There is no judicial or administrative action, criminal charge, civil
or criminal complaint, claim, suit, proceeding or investigation pending or, to the Knowledge of
Astoria, threatened against Astoria or any of its Subsidiaries or any of the Astoria Owned Real
Property or the Astoria Leased Real Property, in each case, before any Governmental Entity, that
(a) individually or in the aggregate would reasonably be expected to have a Material
Adverse Effect or (b) questions the validity of this Agreement or any action taken or to be
taken by Astoria or any of its Subsidiaries in connection herewith.

     3.9 Compliance with Laws; Permits.

     (a) Neither Astoria nor any of its Subsidiaries is in, and none of Astoria or any of its
Subsidiaries is in receipt of any written notice of any, violation of any law, statute, rule,
regulation, judgment, order, decree, permit, concession, franchise or other governmental
authorization or approval applicable to it or to any of its properties, and Astoria and its
Subsidiaries have complied in all material respects with all laws, statutes, rules, regulations,
judgments, orders, decrees, permits, concessions, franchises, and other governmental authorizations
or approvals applicable to it or its properties, except for any such violations or non-compliance
which would not, individually or in the aggregate, reasonably be expected to be material to Astoria
and its Subsidiaries, taken as a whole.

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     (b) All of the licenses, permits and other governmental authorizations necessary to conduct
the business of Astoria and its Subsidiaries as presently conducted (collectively, the “Astoria
Permits”) have been duly obtained, are held by Astoria or its Subsidiaries and are in full
force and effect, except in each case where such a failure would not reasonably be expected to have
a Material Adverse Effect. No event has occurred or other fact exists with respect to the Permits
that allows, or after notice or lapse of time or both would allow, revocation or termination of any
of the Permits or would result in any other impairment of the rights of the holder of any of the
Permits that individually or in the aggregate would reasonably be expected to have a Material
Adverse Effect.

     (c) This Section 3.9 does not relate to tax matters, employee benefits matters or
environmental matters, which are provided for in Sections 3.7, 3.11 and 3.17, respectively.

     3.10 Regulatory Status.

(a) Schedule 3.10(a) of the Astoria Disclosure Letter sets forth, the name, location, nominal
capacity and Astoria’s direct or indirect ownership of each generating facility owned directly
or indirectly, in whole or in part, by Astoria or any of its Subsidiaries (the “Astoria
Facilities”). The Astoria Project Company Subsidiary (i) meets the requirements
for, and has made the necessary filing with, or has been determined by, FERC to be EWGs within
the meaning of Section 1262(6) of PUHCA; (ii) is authorized by FERC pursuant to
Section 205 of the FPA to sell electric power, including energy and capacity and ancillary
services, at market-based rates; and (iii) has received such waivers and blanket
authorizations as are customarily granted by FERC to entities authorized to sell electric
power at market-based rates, including, but not limited to, authorization to issue securities
and assume obligations or liabilities pursuant to Section 204 of the FPA.

(b) There are no pending FERC proceedings in which the EWG status, market-based rate
authority, or the FPA Section 204 authority of the Astoria Project Company Subsidiary is subject to
withdrawal, revocation or material modification other than (i) FERC rulemakings of general
applicability, including, but not limited to, Market-Based Rates for Wholesale Sales of Energy,
Capacity and Ancillary Services by Public Utilities in Docket No. RM04-7-000; and (ii) FERC
proceedings concerning New York Independent System Operator market rules including, but not limited
to market mitigation measures as may apply to such Astoria Project Company Subsidiary and similarly
situated sellers of wholesale electric power with market based rates.

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     (c) Astoria and each of its Subsidiaries is in full compliance in all material respects with
the terms and conditions of all orders issued by FERC under Section 203 of the FPA and obtained by
Astoria or any of its Subsidiaries.

     (d) Astoria is a “holding company” within the meaning of Section 1262(8) of PUHCA solely with
respect to its ownership of one or more EWGs, and is not subject to or is otherwise exempt from
regulation under PUHCA except for regulation under Section 1265 of PUHCA.

     (e) Astoria and each of its Subsidiaries has filed or caused to be filed with the applicable
state or local utility commissions or utility regulatory bodies and the FERC, all material forms,
statements, reports and documents (including all exhibits, amendments and supplements thereto)
required to be filed by it with respect to Astoria and each of its Subsidiaries’ businesses and
each Astoria Facility under all applicable laws and PUHCA and the respective rules and regulations
thereunder, all of which complied in all material respects with all applicable requirements of the
appropriate act and the rules and regulations thereunder in effect on the date each such report was
filed.

     (f) No order, judgment or decree shall have been issued or proposed to be issued by any
Governmental Entity that, as a result of the construction, ownership, leasing or operation of any
Astoria Facility by Astoria or any of its Subsidiaries, the sale of electricity therefrom by the
Astoria Project Company Subsidiary, or any transaction contemplated hereby, could reasonably be
expected to cause or deem Astoria or any of its Subsidiaries to be subject to, and not exempted
from, regulation under PUHCA, except for regulation under Section 1265 of PUHCA.

     (g) Astoria has disclosed to EBG all information regarding Astoria and each of its
Subsidiaries, their respective businesses, financial conditions and corporate governance,
directors, officers and affiliates, any agreements and arrangements among such Persons regarding
their direct and indirect interests in Astoria and each of its Subsidiaries and the allocation
among such Persons of economic and management rights relating to Astoria and its Subsidiaries that
could be reasonably expected to affect the ability of the parties to obtain any approval, Consent
or authorization of any Governmental Entity under the FPA or any other federal, state or local
energy law or regulation (including any Section 203 approval) or to make any requisite filing with
any Governmental Entity under the FPA or any other federal, state or local energy law or
regulation, in any case necessary for or required as a result of the execution, delivery and
performance of this Agreement.

     3.11 Employee Benefits.

     (a) Company Benefit Plans; Employment Agreements. Schedule 3.1 l(a)(i) of the Astoria
Disclosure Letter contains a complete and accurate list of each material Plan

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that is maintained, contributed to or established by Astoria or any of its ERISA Affiliates or
under which any such Person has any current or contingent obligation and under which any current or
former officer, director, consultant or employee of Astoria or any of its ERISA Affiliates, or the
beneficiaries or dependents of any such person, is or will become eligible to participate or derive
a benefit (“Astoria Benefit Plans”). Schedule 3.11(a)(ii) of the Astoria Disclosure Letter
sets forth all written employment, severance and retention agreements other than any such agreement
(x) that, by its terms, may be terminated or canceled by Astoria or any Subsidiary with
notice of not more than the greater of 120 days and the period of notice required under applicable
law, in each case without penalty and (y) providing for the payment of annual salary and
bonus or severance payments less than $250,000 in any one case (“Astoria Employment
Agreements”).

     (b) Compliance; Liability. Each Astoria Benefit Plan has been operated and
administered in accordance with its terms and with applicable law, except for any failure to do so
that would not reasonably be expected to have a Material Adverse Effect. All contributions required
to have been made by Astoria and its Subsidiaries under any Astoria Benefit Plan have been made by
the due date therefor (including any extensions). There is no pending or, to the Knowledge of
Astoria, threatened material legal action, suit or claim relating to Astoria Benefit Plans (other
than routine claims for benefits). Astoria and its ERISA Affiliates have engaged in no transaction
with respect to any Astoria Benefit Plan that, assuming the taxable period of such transaction has
expired as of the date hereof, would reasonably be expected to subject Astoria and its Subsidiaries
to a tax or penalty imposed by either section 4975 of the Code or section 502(i) of ERISA that
would reasonably be expected to have a Material Adverse Effect. Neither Astoria nor any of its
Subsidiaries is in breach of any Astoria Employment Agreement.

     (c) Tax Qualification. Each Astoria Benefit Plan that is intended to be qualified
under section 401 (a) of the Code has received a favorable determination letter from the IRS as to
its qualification under the Code and to the effect that each such trust is exempt from taxation
under section 501 (a) of the Code, and, to the Knowledge of Astoria, nothing has occurred since the
date of such determination letter that will adversely affect such qualification or tax-exempt
status.

     (d) Title IV of ERISA. Neither Astoria nor any ERISA Affiliate has incurred any
material liability under Title IV of ERISA or is subject to section 302 of ERISA or section 412 of
the Code, and no event, transaction or condition exists that would result in any material liability
to the Astoria Surviving Company or any ERISA Affiliate following the Closing. No Astoria Benefit
Plan is or was a plan subject to Code section 412 or section 302 or Title IV of ERISA, a
“multiemployer plan” as defined in section 3(37) of ERISA, or “multiple employer plan” under
section 4063 of ERISA.

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     (e) Triggering Events. Neither the execution of this Agreement nor the performance of
the obligations hereunder by Astoria or its Subsidiaries shall by itself or in connection with any
other event require a payment, or cause the accelerated vesting of or timing a right to a payment,
under any Astoria Benefit Plan or under any Astoria Employment Agreement. The performance of the
obligations hereunder by Astoria or its Subsidiaries will not, by itself or in connection with
other events, result in any payment under any Astoria Benefit Plan or under any Astoria Employment
Agreement that would constitute an “excess parachute payment” for purposes of section 280G or 4999
of the Code.

     (f) Documents. With respect to each Astoria Benefit Plan, Astoria has made available
to EBG true and complete copies of the following documents, to the extent applicable: (i)
the most recent Plan document and all amendments thereto; (ii) the most recent trust
instrument and insurance contracts and any other funding or investment agreements; (iii)
the Form 5500 and accompanying schedules for the current year and the immediately preceding three
years filed with the IRS; (iv) the most recent summary plan description; and (v)
the most recent determination letter issued by the IRS. Astoria has made available to EBG true and
complete copies of Astoria Employment Agreements.

     (g) Neither Astoria nor any of its Subsidiaries or ERISA Affiliates has any obligation to
provide health benefits or other benefits to retired or other former employees, except as
specifically required by section 4980B of the Code or Part 6 of Title I of ERISA, and Astoria and
each of its Subsidiaries or ERISA Affiliates has complied in all material respects with the
requirements of Code section 4980B and such Part 6. Schedule 3.11 (g) of the Astoria Disclosure
Letter sets forth a list of all employees on or eligible for COBRA.

     3.12 Labor Matters. No labor strike, material labor dispute, or concerted work
stoppage is currently pending or, to the Knowledge of Astoria, threatened with respect to any
employee of Astoria or its Subsidiaries. Each of Astoria and its Subsidiaries is in compliance with
all applicable labor laws in connection with the employment of its employees, except for such
non-compliance that individually or in the aggregate would not reasonably be expected to have a
Material Adverse Effect. None of Astoria or any of its Subsidiaries is party to or bound by any
Contract or other agreement with any labor union representing its employees or collective
bargaining agreement and, to the Knowledge of Astoria, there are no activities or proceedings of
any labor union to organize any such employees.

     3.13 Real Property; Tangible Property.

     (a) Schedule 3.13 (a) of the Astoria Disclosure Letter lists all material items of real
property either owned by Astoria or its Subsidiaries (the “Astoria Owned Real Property”) or
leased by Astoria or its Subsidiaries (the “Astoria Leased Real Property”).

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Astoria and its Subsidiaries have good and marketable fee simple title to the Astoria Owned Real
Property listed on Schedule 3.13(a) and valid leasehold interests in the Astoria Leased Real
Property listed on Schedule 3.13 (a), in each case free and clear of all Liens except for Permitted
Liens. None of Astoria or any of its Subsidiaries owns or holds, has granted or is obliged under
any contractual right to purchase, acquire, sell or dispose of any Astoria Owned Real Property.
None of Astoria or any of its Subsidiaries is obligated under any agreement to purchase or acquire
any Astoria Leased Real Property.

     (b) The Astoria Owned Real Property and the Astoria Leased Real Property, together with
easements appurtenant thereto, include all of the material real property used or held for use in
connection with or otherwise required to carry on the business of Astoria and its Subsidiaries, as
currently conducted.

     (c) Schedule 3.13(c) of the Astoria Disclosure Letter contains a complete and correct list of
all real property leases relating to the Astoria Leased Real Property to which Astoria or any of
its Subsidiaries is a party or is bound (the “Astoria Leases”). Astoria has made available
to EBG correct and complete copies of the Astoria Leases including all amendments, modifications
and extensions thereto and guarantees thereof. Under each of the Astoria Leases, the tenant
thereunder enjoys peaceful and undisturbed possession of and has the exclusive right to use and
occupy its respective Astoria Leased Real Property. Each of the Astoria Leases (including any
option to purchase contained therein) is in full force and effect and, to the Knowledge of Astoria,
is enforceable against the landlord which is party thereto in accordance with its terms, and there
exists no default or event of default (or any event that with notice or lapse of time or both would
become a default) on the part of Astoria or any of its Subsidiaries under any Astoria Leases,
except for such failures to be in full force and effect and defaults as would not, individually or
in the aggregate, reasonably be expected to have or result in a Material Adverse Effect.

     (d) Astoria and its Subsidiaries have legal and beneficial ownership of all of their
respective tangible personal property and assets included in the Astoria Financial Statements for
the fiscal year ended December 31, 2005, except for properties and assets disposed of in the
ordinary course of business since December 31, 2005, in each case free and clear of all Liens other
than Permitted Liens. Except as would not reasonably be expected to have a Material Adverse Effect,
Astoria and its Subsidiaries own or have the right to use all of the properties and assets
necessary for the conduct of their business as currently conducted. Each such tangible asset has
been maintained in accordance with normal industry practice, is in good operating condition and
repair (subject to normal wear and tear) and is suitable for the purpose for which it is currently
used.

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     (e) Each parcel included in Astoria Owned Real Property is assessed for real property tax
purposes as a wholly-independent tax lot, separate and apart from any adjoining land or
improvements not constituting a part of that parcel.

     3.14 Intellectual Property.

     (a) Schedule 3.14(a) of the Astoria Disclosure Letter lists all Intellectual Property that are
owned by Astoria or any of its Subsidiaries and are material to the conduct of the business of
Astoria or any of its Subsidiaries, as currently conducted (“Astoria Owned Intellectual
Property”). Astoria and its Subsidiaries have taken commercially reasonable steps in accordance
with normal industry practice to protect and maintain in force the Astoria Owned Intellectual
Property and to protect the confidentiality of trade secrets used in the operation of the business.
Except for infringements, claims, demands, proceedings and defects in rights that would not,
individually or in the aggregate, reasonably be expected to have or result in a Material Adverse
Effect, (i) to the Knowledge of Astoria, the use of the Astoria Owned Intellectual Property
by Astoria and its Subsidiaries as currently used does not infringe on the Intellectual Property
rights of any Person and (ii) there is no claim or demand of any Person pertaining to, or
any proceeding that is pending or, to the Knowledge of Astoria, threatened that challenges the
rights of Astoria or any of its Subsidiaries in respect of, any Astoria Owned Intellectual
Property.

     (b) Schedule 3.14(b) of the Astoria Disclosure Letter lists, all material written licenses to
Intellectual Property or trade secrets (other than licenses for “off-the-shelf” software) to which
Astoria or any of its Subsidiaries is a party, pursuant to which (i) Astoria or such
Subsidiary permits any Person to use any of the Astoria Owned Intellectual Property or trade
secrets owned by Astoria or such Subsidiary, or (ii) any Person permits Astoria or such
Subsidiary to use any Intellectual Property or trade secrets not owned by Astoria or such
Subsidiary that are necessary for the conduct of the business of Astoria or any of its Subsidiaries
as currently conducted (collectively, the “Astoria Licenses”). Astoria has made available
to EBG copies of all of the Astoria Licenses. Neither Astoria nor any of its Subsidiaries, nor, to
the Knowledge of Astoria, any other party thereto, is in default under any Astoria License, and
each Astoria License is in full force and effect as to Astoria or Subsidiary thereof party thereto
and, to the Knowledge of Astoria, as to each other party thereto, except for such defaults and
failures to be so in full force and effect as would not, individually or in the aggregate,
reasonably be expected to have or result in a Material Adverse Effect.

     3.15 Contracts. Schedule 3.15 of the Astoria Disclosure Letter lists, as of the date
hereof, all Astoria Material Contracts (other than Organizational Documents of any of the
Subsidiaries, agreements related to employee benefits, agreements related to labor matters, real
property leases and agreements related to intellectual property, the last four of which are
provided for in Sections 3.11, 3.12, 3.13, and 3.14, respectively). The term

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“Astoria Material Contracts” means all of the following types of Contracts to which Astoria
or any of its Subsidiaries is a party or by which Astoria or any of its Subsidiaries or any of
their respective properties is bound as of the date hereof:

     (a) all material gas pipeline interconnection agreements, gas supply agreements, gas
purchase and sale agreements and gas transportation agreements;

     (b) all material fuel, supply or transportation agreements (including fuel and oil
transportation agreements);

     (c) all power purchase agreements (involving more than 10% of any Astoria Facility’s
nominal capacity or having a term of more than one month) and all material water supply
agreements, wastewater disposal agreements, any waste disposal agreements, electricity
transmission agreements and electricity interconnection agreements;

     (d) all material swap, exchange, commodity option or hedging agreements or similar
arrangements;

     (e) all material operating and maintenance agreements, management agreements,
administrative services agreements and long term service agreements;

     (f) all Contracts (other than ordinary course maintenance Contracts) requiring a future
capital expenditure or known commitment by Astoria or any of its Subsidiaries in excess of
$1,000,000 in any twelve month period;

     (g) all contracts requiring known or liquidated expenditures or payments to or from
Astoria or any of its Subsidiaries in excess of $1,000,000 in any calendar year, other than
those that can be terminated without material penalty to Astoria or any of its Subsidiaries,
as applicable, upon not more than sixty (60) days’ notice;

     (h) all contracts or agreements under which the Astoria or any of its Subsidiaries is
obligated to sell real or personal property having a value in excess of $1,000,000;

     (i) mortgages, indentures, loan or credit agreements, security agreements, and other
agreements and instruments relating to the borrowing of money or extension of credit in any
case in excess of $1,000,000;

     (j) joint venture and limited partnership agreements (other than limited partnerships of
which Astoria owns 100% of the partnership interests);

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     (k) all contracts to which Astoria or any of its Subsidiaries is party that contain a
covenant not to compete applicable to Astoria or any of its Subsidiaries or their respective
Affiliates or otherwise restrict any of Astoria or any of its Subsidiaries or their respective
Affiliates from engaging in any line of business in the electricity or power industry or
generating, developing or distributing, or other rights with respect to, electricity or power
(other than term loan agreements, indentures or similar financing contracts typical to the
electricity or power industry containing customary restrictive covenants);

     (1) stock purchase agreements, asset purchase agreements and other acquisition or
divestiture agreements relating to the acquisition, lease or disposition by Astoria or its
Subsidiaries of material assets and properties (other than in the ordinary course of business)
or any equity interest of Astoria or its Subsidiaries, in each case which was entered into by
Astoria or its Subsidiaries after February 23, 2006 or under which Astoria or its Subsidiaries
has any executory indemnification obligations;

     (m) credit support guarantees, letters of credit or other agreements by which Astoria or
any of its Subsidiaries guarantees or otherwise provides support for the obligations of
another Person other than Astoria or any of its Subsidiaries, in each case with respect to
amounts in excess of $1,000,000; and

     (n) securityholder agreements, voting trusts or other agreements or understandings to
which Astoria or any of its Subsidiaries is a party or to which Astoria or any of its
Subsidiaries is bound relating to the voting, purchase, redemption or other acquisition of any
equity securities of Astoria or any of its Subsidiaries.

Astoria has made available to EBG copies of all of the Astoria Material Contracts. Each such
Astoria Material Contract is a valid and binding agreement of Astoria or one of its Subsidiaries
and, to the Knowledge of Astoria, the counterparty thereto, and is in full force and effect, and
neither Astoria nor any of its Subsidiaries nor, to the Knowledge of Astoria, any other Person is
in default under any Astoria Material Contract, except for such failures to be in full force and
effect and defaults as would not, individually or in the aggregate, reasonably be expected to have
or result in a Material Adverse Effect.

     3.16 Insurance. Schedule 3.16 of the Astoria Disclosure Letter lists all of the
policies of insurance, other than real property title insurance policies, maintained by Astoria or
any of its Subsidiaries for the policy year that includes the date hereof. Each such policy is in
full force and effect. All policy premiums due and payable with respect to all periods specified in
Schedule 3.16 of the Astoria Disclosure Letter have either been paid or adequate provision for the
payment by Astoria or a Subsidiary thereof has been made. Neither Astoria nor any of its
Subsidiaries has received any written notice of any

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material increase of premiums with respect to, or cancellation or non-renewal of, any of such
insurance policies.

     3.17 Environmental Matters. Except as would not, individually or in the aggregate,
reasonably be expected to have or result in a Material Adverse Effect:

     (a) Astoria and its Subsidiaries are and have been in compliance with all applicable
Environmental Laws;

     (b) Astoria and its Subsidiaries have obtained, and are in compliance with, all permits,
licenses and other authorizations required under applicable Environmental Laws for their
operations and the ownership of the Astoria Owned Real Property and the occupation of the
Astoria Leased Real Property;

     (c) neither Astoria nor any of its Subsidiaries has received from any Person any written
notice of violation, alleged violation, non-compliance, liability or potential liability under
Environmental Laws, other than matters that have been settled and resolved without future
obligation;

     (d) no complaint, claim, suit, investigation, judicial proceeding or governmental or
administrative action is pending or to the Knowledge of Astoria threatened, under any
applicable Environmental Law relating to Astoria or any of its Subsidiaries, the Astoria Owned
Real Property or the Astoria Leased Real Property;

     (e) neither Astoria nor any of its Subsidiaries has any liability with respect to, or any
obligation to investigate or remediate any condition resulting from the release or threatened
release of Hazardous Substances; and

     (f) none of the Astoria Owned Real Property or the Astoria Leased Real Property is
subject to any activity or use restriction, or other deed restriction, that was implemented
pursuant to any Environmental Law or as a result of the presence or remediation of Hazardous
Substances, and that would reasonably be expected to limit, hinder or interfere with the
current or future operations at such real property.

Astoria has provided to EBG all environmental site assessments, audits, investigations and studies
in the possession, custody or control of Astoria or any of its Subsidiaries relating to properties
or assets currently or formerly owned, leased, or operated by Astoria or any of its Subsidiaries.

     Notwithstanding any of the representations and warranties contained elsewhere in this
Agreement, matters arising under Environmental Laws shall be governed exclusively by this Section
3.17.

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     3.18 Affiliate Transactions. Except for any such agreements among Astoria and its
wholly owned Subsidiaries, neither Astoria nor any of its Subsidiaries is a party to any agreement
with any Affiliate or any member of Astoria.

     3.19 Brokers. Other than with respect to Credit Suisse, whose fees and expenses will
be paid by the Astoria Surviving Company, all negotiations relating to this Agreement and the
transactions contemplated hereby have been carried out without the intervention of any Person
acting on behalf of Astoria in such manner as to give rise to any valid claim against USPowerGenCo,
the Astoria Surviving Company or the EBG Surviving Company for any brokerage or finder’s
commission, fee or similar compensation.

     3.20 Accredited Investors. When New Astoria is formed, each of its members shall be an
accredited investor (as defined in Rule 501 (a) under the Securities Act).

     3.21 Appraisal Rights. No member of Astoria shall have any appraisal or similar rights
as a result of the Astoria Merger.

ARTICLE IV

COVENANTS

     4.1 Conduct of the Companies and their Subsidiaries. Except as set forth in Schedule
4.1 of the EBG Disclosure Letter or the Astoria Disclosure Letter, as applicable, from the date
hereof to the Closing, except (i) for entering into and performing this Agreement,
(ii) for performance of its obligations hereunder, (iii) as contemplated by this
Agreement (including in preparation for consummation of the Mergers and the public offering of
securities pursuant to this Agreement and the Investor Rights Agreement) or by EBG’s or Astoria’s
budgets, as applicable, heretofore made available to the other party, (iv) to the extent
required by applicable law, statute, rule or regulation, (v) for actions not inconsistent
with the ordinary course of business or (vi) as otherwise consented to by the other party
in writing, such consent not to be unreasonably withheld or delayed, each of EBG and Astoria shall
conduct its business in the ordinary course in substantially the same manner in which it is
conducted as of the date hereof, to the extent consistent with such business, use its commercially
reasonable efforts to preserve intact its present business organization and to preserve its
relationships with customers, suppliers and others having business dealings with it, and not take
any action that would have caused a breach of Section 2.6 in the case of EBG or 3.6 in the case of
Astoria had it been taken prior to the date hereof and not disclosed to the other parties hereto in
accordance with this Agreement, and neither EBG nor Astoria shall take or fail to take any action
which results in the loss of EWG status under PUHCA by any Subsidiary of EBG or Astoria that holds
such status as of the date of this Agreement. Each of EBG and

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Astoria shall, and shall cause its Subsidiaries to, pay all Taxes when due and shall make capital
expenditures substantially in accordance with the budget therefor.

     4.2 Solicitation of EBG Members. As promptly as reasonably practicable following the
date hereof, EBG shall prepare and distribute to each EBG Member an information statement
describing the transactions contemplated by this Agreement together with a written consent
soliciting the Requisite Consent of EBG Members; and requesting that such written consent be
returned to EBG in no more than twenty (20) days (as such date may be extended by EBG),
provided that, prior to distribution of such information statement and written consent, EBG
shall deliver a draft of the information statement and written consent to Astoria for its review
and comment and shall include any reasonable comments made by Astoria in such information statement
and written consent and further provided that Astoria covenants and agrees that it
shall reasonably cooperate in the preparation of such information statement and provide all
information reasonably requested in connection therewith. EBG covenants and agrees that, except
with respect to any information provided by Astoria, the information contained in such information
statement will not, at the time of mailing, contain any untrue statement of a material fact or omit
to state any material fact required to be stated therein or necessary in order to make the
statements therein, in light of the circumstances under which they were made, not misleading. The
Board of Directors of EBG shall recommend adoption of this Agreement by the members of EBG to the
effect as set forth in Section 2.1(b) (the “EBG Recommendation”), and shall not withdraw,
modify or qualify (or propose to withdraw, modify or qualify) (a “Change”) in any manner
adverse to Astoria such recommendation or take any action or make any statement to the members of
EBG inconsistent with such recommendation including, without limitation, approving or recommending
or proposing to approve or recommend a third party Takeover Proposal with respect to EBG or failing
to recommend the adoption of this Agreement (collectively, a “Change in the EBG
Recommendation”); provided that the foregoing shall not prohibit accurate disclosure
(and such disclosure shall not be deemed to be a Change in the EBG Recommendation) of factual
information regarding the business, financial condition or results of operations of Astoria or EBG
or the fact that a Takeover Proposal has been made, the identity of the party making such proposal
or the material terms of such proposal (provided that the Board of Directors of EBG does
not make a Change in the EBG Recommendation in any manner adverse to Astoria), to the extent such
information, facts, identity or terms are required to be disclosed under applicable law; and,
provided, further, that the Board of Directors of EBG may make a Change in the EBG
Recommendation only in accordance with Section 4.6 (b) hereof. Unless EBG makes a Change in the EBG
Recommendation in accordance with Section 4.6(b) hereof, EBG shall use its reasonable best efforts
to solicit from its members the Requisite Consent of EBG Members and shall take all other action
reasonably necessary or advisable to secure the Requisite Consent of EBG Members. EBG shall keep
Astoria reasonably updated with respect to the status of its receipt of the Requisite Consent of
EBG Members.

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     4.3 Regulatory Compliance. EBG and Astoria shall not, and shall not permit any of
their Subsidiaries to, take any action that would result in the representations and warranties set
forth in Section 2.10, in the case of EBG, or 3.10, in the case of Astoria becoming untrue.

     4.4 Updates.

     (a) Each party shall give prompt written notice to the other parties hereto if such party
becomes aware that such party is in breach or will, as of the Closing Date, be in breach of any
representation, warranty, covenant or agreement of such party made in this Agreement.

     (b) EBG shall promptly provide notice to Astoria of any change in ownership of EBG securities
relative to that set forth in Schedule 2.2(a) of the EBG Disclosure Letter that causes a Person who
did not previously own five percent’(5%) or more of the voting securities of EBG to own five
percent (5%) or more of such voting securities. Astoria shall promptly provide notice to EBG of any
change in ownership of Astoria Units relative to that set forth in Schedule 3.2(a) of the Astoria
Disclosure Letter that causes a Person who did not previously own five percent (5%) or more of the
voting interests in EBG to own five percent (5%) or more of such voting interests; provided
that, with respect to the Exchange, notification that the Exchange has been completed shall
constitute notice for this purpose. In connection with any such updates, EBG or Astoria, as
applicable, may provide the other party with an updated version of Schedule 2.2(a) or Schedule
3.2(a), as applicable, provided that except as a result of the Exchange, Astoria may not
provide EBG with an updated version of Schedule 3.2(a) reflecting ownership by MDCP IV of less than
85% of the voting securities of Astoria; provided  further that immediately after the
Exchange and for all subsequent periods until the Closing, MDCP IV shall own not less than 85% of
the voting securities of New Astoria.

     (c) The Exchange shall take place prior to the Mergers. Immediately after the Exchange, the
issued and outstanding Astoria Units shall be 1,000 common units, all of which shall be owned by
New Astoria, and that the limited liability company operating agreement of Astoria, after giving
effect to the Exchange, shall be in substantially the form of the Astoria LLC Agreement (revised to
reflect that such common units are owned by New Astoria). In no event shall completion of the
Exchange be deemed to constitute a breach of any representation, warranty or covenant contained in
this Agreement.

     4.5 Satisfaction of Closing Conditions.

     (a) Subject to the terms and conditions of this Agreement, each of Astoria and EBG shall use
its reasonable best efforts to cause the Closing to occur, including, without limitation,
(i) taking such actions as are contemplated by Section 4.5(b) and (ii) defending
against any suits, actions or proceedings, judicial or administrative,

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challenging this Agreement or the consummation of the transactions contemplated hereby, including
seeking to have any temporary restraining order, preliminary injunction or other legal restraint or
prohibition entered or imposed by any court or other Governmental Entity and that is not yet final
and non-appealable to be vacated or reversed; provided that neither Astoria and EBG nor any
of their Affiliates shall be required to make any material monetary expenditure, commence or be a
plaintiff in any litigation or other proceeding or offer or grant any material accommodation
(financial or otherwise) to any Person.

     (b) Each of EBG and Astoria shall file as promptly as practicable with the United States
Federal Trade Commission (the “FTC”) and the United States Department of Justice (the
“DOJ”), in each case pursuant to the HSR Act: (i) the notification and report form, if any,
required for the transactions contemplated hereby, which form shall be filed not later than ten
Business Days following the execution and delivery of this Agreement, and (ii) any
supplemental information requested in connection therewith, which information shall be filed
promptly following the request therefor during the initial waiting period. Any such notification
and report form and supplemental information shall be in substantial compliance with the
requirements of the HSR Act.

     (c) EBG and Astoria shall use reasonable best efforts to file as promptly as practicable, but
not more than 15 days following the execution and delivery of this Agreement, (i) a joint
application to FERC for approval under Section 203 of the FPA of the transactions contemplated
hereby and (ii) the necessary filings with the NYPSC seeking authorization under Section 70
of the New York Public Service Law or a ruling declaring that the NYPSC will not review the Mergers
under Section 70 because the Wallkill presumption is satisfied.

     (d) EBG, on the one hand, and Astoria, on the other hand, shall furnish to the other such
necessary information and reasonable assistance as the other may request in connection with its
preparation of the information statement referred to in Section 4.2 and any filing that is
necessary under the HSR Act or any other law. EBG, on the one hand, and Astoria, on the other hand,
shall keep each other apprised of the status of any communications with, and any inquiries or
requests for additional information from, the FTC and the DOJ and any other Governmental Entity and
shall comply promptly with any such inquiry or request. Subject to Section 4.5(a), each of EBG and
Astoria shall use its reasonable best efforts to obtain any clearance required under the HSR Act or
any other consent, approval or authorization of any Governmental Entity necessary for the Mergers.

     (e) EBG will take all action necessary such that, as of the Closing Date, all agreements set
forth in Schedule 2.18 of the EBG Disclosure Letter will have been terminated without payment
(other than amounts accrued in accordance with the terms thereof) and without further liability
(other than unmatured indemnification obligations)

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to EBG or any of its Subsidiaries, except as otherwise described on such Schedule. Astoria will
take all action necessary such that, as of the Closing Date, all agreements set forth in Schedule
3.18 of the Astoria Disclosure Letter will have been terminated without further liability to
Astoria or any of its Subsidiaries (other than unmatured indemnification obligations), except as
otherwise described on such Schedule.

     (f) Each party agrees that actions taken or to be taken in furtherance of the transactions
contemplated hereby shall not be deemed to violate any provision of any confidentiality agreement
regarding non-disclosure of the transactions contemplated hereby; provided that this
sentence shall not be deemed a waiver of the parties’ obligations with respect to non-disclosure
and non-use of confidential information or evaluation material.

     4.6 No Solicitation.

     (a) EBG shall not, nor shall it authorize or permit any of its Subsidiaries or any of their
respective representatives to (and shall instruct its Subsidiaries and their respective
representatives not to), directly or indirectly (i) initiate, solicit, facilitate or
encourage any inquiry or the making of any proposal that constitutes or could reasonably be
expected to lead to a Takeover Proposal (as defined in Section 4.6(d)), (ii) enter into any
letter of intent, memorandum of understanding, merger agreement or other agreement, arrangement or
understanding relating to, or that could reasonably be expected to lead to, any Takeover Proposal,
or (iii) continue or otherwise participate in any discussions or negotiations regarding,
furnish to any Person any information or data with respect to, or otherwise cooperate with or take
any other action to facilitate any proposal that (A) constitutes, or could reasonably be
expected to lead to, any Takeover Proposal or (B) requires EBG to abandon, terminate or
fail to consummate the Mergers or any other transactions contemplated by this Agreement.
Notwithstanding the foregoing, prior to the receipt of Requisite Consent of EBG Members, EBG may,
in response to a bonafide written Takeover Proposal that was unsolicited and did not otherwise
result from a breach of this Section 4.6(a), and subject to compliance with Section 4.6(c):

     (x) furnish information with respect to EBG and its Subsidiaries to the Person making
such Takeover Proposal and its representatives pursuant to and in accordance with a
confidentiality agreement containing terms and conditions no less restrictive than those
contained in the Confidentiality Agreement, provided that all such information
provided to such Person has previously been provided to Astoria or is provided to Astoria
prior to or concurrently with the time it is provided to such Person; and

     (y) participate in discussions or negotiations with such Person and its representatives
regarding such Takeover Proposal;

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provided, in each case, that the Board of Directors of EBG determines in good faith, by
resolution duly adopted after consultation with its outside legal counsel and a financial advisor
of nationally recognized reputation, that (i) the failure to furnish such information or
participate in such discussions or negotiations would breach its fiduciary duties to the members of
EBG under applicable law and (ii) such Takeover Proposal would reasonably be expected to
lead to a Superior Proposal (as defined in Section 4.6(d)). EBG shall (A) immediately cease
and cause to be terminated any existing activities, discussions or negotiations with any Persons
conducted prior to the date of this Agreement with respect to any
potential Takeover Proposal, (B) use its reasonable best efforts, consistent with existing confidentiality agreements, to obtain the
return or destruction of any confidential information previously furnished to any such Person by
EBG, its Subsidiaries or any of their respective representatives, and (C) use its
reasonable best efforts promptly to inform its representatives of the obligations undertaken in
this Section 4.6. Without limiting the foregoing, any violation of the restrictions set forth in
this Section 4.6 by any representative of EBG or any of its Subsidiaries, whether or not such
person is purporting to act on behalf of EBG or any of its Subsidiaries, shall be deemed to be a
breach of this Section 4.6 by EBG.

     (b) Neither the Board of Directors of EBG nor any committee thereof shall, directly or
indirectly, (i) effect a Change in EBG Recommendation or
(ii) approve any letter of intent,
memorandum of understanding, merger agreement or other agreement, arrangement or understanding
relating to, or that may reasonably be expected to lead to, any Takeover Proposal. Notwithstanding
the foregoing, at any time prior to Requisite Consent of EBG Members, the Board of Directors of EBG
may, in response to a Superior Proposal, effect a Change in EBG Recommendation, provided
that the Board of Directors of EBG determines in good faith, by resolution duly adopted after
consultation with its outside legal counsel and a financial advisor of nationally recognized
reputation, that the failure to do so would breach its fiduciary duties to the members of EBG under
applicable law, and provided, further, that the Board of Directors of EBG may not
effect such a Change in EBG Recommendation unless (i) the Board of Directors shall have
first provided prior written notice to Astoria that it is prepared to recommend a Superior
Proposal, which notice shall summarize the material terms and conditions of such Superior Proposal
(including the identity of the party making such Superior Proposal) and attach the most current
version of the written agreement relating to the transaction that constitutes such Superior
Proposal, and (ii) Astoria does not make, within five Business Days after the receipt of
such notice (the “Notice Period”), a proposal that the Board of Directors determines in
good faith, after consultation with a financial advisor of nationally recognized reputation, is at
least as favorable to the members of EBG as such Superior Proposal (it being understood that
(x) EBG shall negotiate in good faith with Astoria, to the extent Astoria wishes to
negotiate, to enable Astoria to make changes to the terms of this Agreement and (y) in the
event of any change to any material term of any such Superior Proposal, EBG shall deliver to
Astoria an additional notice relating thereto, and the Notice Period shall recommence).
Notwithstanding any Change in EBG

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Recommendation, Astoria shall have the option, exercisable within five Business Days after its
receipt of the notice referred to in the preceding sentence, to cause the Board of Directors to
submit this Agreement to the members of EBG for the purpose of adopting this Agreement and
approving the Mergers. If Astoria exercises such option, Astoria shall not be entitled to terminate
this Agreement pursuant to Section 7.1(c)(iii). If Astoria fails to exercise such option, EBG may
terminate this Agreement pursuant to and in accordance with Section 7.1(d)(ii).

     (c) As promptly as practicable after the receipt by EBG of any Takeover Proposal or any
inquiry with respect to, or that could reasonably be expected to lead to, any Takeover Proposal,
and in any case within 48 hours after the receipt thereof, EBG shall provide oral and written
notice to Astoria of the fact that it has received such Takeover Proposal or inquiry, which notice
shall identify the Person making such Takeover Proposal or inquiry, summarize the material terms of
such Takeover Proposal or inquiry and, in the case of written notice, attach any written materials
delivered in connection with such Takeover Proposal or inquiry. EBG shall keep Astoria reasonably
informed of the status (including any change to the terms) of any Takeover Proposal or any inquiry
with respect to, or that could reasonably be expected to lead to, any Takeover Proposal. EBG shall
not enter into a confidentiality or other agreement that prohibits EBG from providing such
information to Astoria.

     (d) For purposes of this Agreement:

     “Takeover Proposal” means any proposal or offer in respect of (i) a tender or
exchange offer, merger, consolidation, business combination, unit exchange, reorganization,
recapitalization, liquidation, dissolution, or similar transaction involving EBG or any of its
Subsidiaries (any of the foregoing, a “Business Combination Transaction”) with any Person
other than Astoria or any Affiliate thereof (a “Third Party”), (ii) EBG’s
acquisition of any Third Party in a Business Combination Transaction in which the shareholders of
the Third Party immediately prior to consummation of such Business Combination Transaction will own
more than 15% of EBG’s outstanding equity securities immediately following such Business
Combination Transaction, including the issuance by EBG of more than 15% of any class of its voting
equity securities as consideration for assets or securities of a Third Party, or (iii) any
direct or indirect acquisition by any Third Party of 15% or more of any class of equity securities
of EBG or of 15% or more of the consolidated assets of EBG and its Subsidiaries, in a single
transaction or a series of related transactions.

     “Superior Proposal” means any bona fide written proposal or offer made by a Third
Party in respect of a Business Combination Transaction involving, or any purchase or acquisition
of, (i) all or substantially all of the voting power of EBG’s outstanding equity securities
or (ii) all or substantially all of the consolidated assets of EBG and its Subsidiaries,
which Business Combination Transaction or other purchase or acquisition

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contains terms and conditions that the Board of Directors determines in good faith, by resolution
duly adopted after consultation with its outside counsel and a financial advisor of nationally
recognized reputation, would result in a transaction that (x) if consummated, would be more
favorable to the members of EBG than the Merger, taking into account all of the terms and
conditions of such proposal and of this Agreement (including any proposal by Astoria to amend the
terms of this Agreement), and (y) is reasonably capable of being consummated on the terms
so proposed, taking into account all financial, regulatory, legal and other aspects of such
proposal, including the conditionality and the timing and the likelihood of consummation of such
proposal.

     4.7 Access and Information. Prior to the Closing, EBG, Astoria and each of their
Subsidiaries shall permit the other party and its representatives after the date of execution of
this Agreement to have reasonable access at reasonable times to the properties, books and records
of EBG, Astoria and their Subsidiaries, as applicable, other than any personnel information
protected by applicable privacy laws, and shall furnish such information and documents in its
possession relating to EBG, Astoria and their Subsidiaries, as applicable, as may reasonably be
requested, provided that neither EBG nor Astoria shall be entitled to any such access,
information or documents for the purposes of conducting any examination of the other party’s
products, formulae or other trade secrets without the prior written consent of such party. All
information provided or obtained pursuant to the foregoing shall be kept confidential by the party
receiving such information.

     4.8 Publicity. Except as required by applicable law, and except for the making of any
regulatory filings as required by this Agreement, (a) EBG shall not, directly or
indirectly, make or cause to be made any public announcement or issue any notice in respect of this
Agreement or the transactions contemplated hereby without the prior written consent of Astoria, and
(b) Astoria shall not, directly or indirectly, make or cause to be made any public
announcement or issue any notice in respect of this Agreement or the transactions contemplated
hereby, without the prior written consent of EBG. EBG and Astoria shall consult with each other
prior to issuing any press releases or otherwise making public statements with respect to the
transactions contemplated hereby and prior to making any filings with any Governmental Entity or
with any national securities exchange with respect thereto.

     4.9 Transfer Taxes. EBG and Astoria shall be equally responsible for and shall pay for
all sales, use, transfer, stamp, duties, gains, recording and other similar Taxes arising from the
transactions contemplated by this Agreement.

     4.10 Indemnification of Directors and Officers.

     (a) From and after the Closing Date, until the sixth anniversary of the Closing Date, except
as such Organizational Documents are being amended in connection with

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the Mergers in accordance with this Agreement, USPowerGenCo and its Subsidiaries (including the EBG
Surviving Company and its Subsidiaries and the Astoria Surviving Company and its Subsidiaries)
shall, to the fullest extent permitted under applicable law and their respective Organizational
Documents as in effect on the date hereof, to maintain their existing indemnification provisions
with respect to, and indemnify and hold harmless, each present and former director and officer of
Astoria, USPowerGenCo and their respective Subsidiaries (collectively, the “Indemnified
Parties”) against any and all costs or expenses (including travel expenses and reasonable
attorneys’ fees), judgments, fines, losses, claims, damages, liabilities and amounts paid in
defense or settlement or otherwise in connection with any claim, action, suit, proceeding or
investigation, whether civil, criminal, administrative or investigative, arising out of or
pertaining to any facts or events existing or occurring at or prior to the Closing Date;
provided that if any claim or claims are asserted or made within such six-year period, all
rights to indemnification in respect of any such claim or claims shall continue until disposition
of any and all such claims. USPowerGenCo shall, or shall cause its Subsidiaries to, advance
expenses to an Indemnified Party, as incurred, to the fullest extent permitted under applicable
law; provided that the Indemnified Party to whom expenses are advanced provides an
undertaking to repay such advances if it is determined by a court of competent jurisdiction in a
final order as to which the time for appeal has expired or decree that such Indemnified Party is
not entitled to indemnification. In the event of any such claim, action, suit, proceeding or
investigation (whether arising before or after the Closing Date), (i) the Indemnified
Parties shall promptly notify USPowerGenCo thereof, (ii) any counsel retained by the
Indemnified Parties for any period after the Closing Date shall be subject to the consent of
USPowerGenCo (which consent shall not be unreasonably withheld), (iii) USPowerGenCo shall
not be obligated to pay for more than one firm of counsel for all Indemnified Parties, except to
the extent that (x) an Indemnified Party has been advised by counsel that there are
conflicting interests between it and any other Indemnified Party or (y) local counsel, in
addition to such other counsel, is required to effectively defend against such action or
proceedings, and (iv) USPowerGenCo shall not be liable for any settlement effected without
its written consent (which consent shall not be unreasonably withheld). USPowerGenCo shall not have
any obligation hereunder to any Indemnified Party when and if it shall be determined by a court of
competent jurisdiction in a final non-appealable order or decree that the indemnification of such
Indemnified Party in the manner contemplated hereby is prohibited by applicable law.

     (b) For a period of six years after the Closing Date, USPowerGenCo shall, or shall cause its
Subsidiaries to, maintain in effect directors’ and officers’ liability insurance policies no less
favorable than those maintained by Astoria, EBG and their respective Subsidiaries as of the date
hereof with respect to claims arising from or related to facts or events that occurred at or before
the Closing Date; provided, however, that USPowerGenCo or its Subsidiaries shall
not be obligated to make annual premium payments for such insurance to the extent such premiums
exceed 300% of the annual premiums paid as of the date hereof by Astoria, EBG and their respective
Subsidiaries for

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such insurance (such 300% amount, the “Maximum Premium”). If such insurance coverage cannot
be obtained at all, or can only be obtained at an annual premium in excess of the Maximum Premium,
USPowerGenCo shall, or shall cause its Subsidiaries to, maintain the most advantageous policies of
directors’ and officers’ insurance obtainable for an annual premium equal to the Maximum Premium;
provided, further, if such insurance coverage cannot be obtained at all,
USPowerGenCo shall, or shall cause its Subsidiaries to, purchase all available extended policy
periods with respect to pre—existing insurance in an amount that, together with all other
insurance purchased pursuant to this Section 4.10(b), does not exceed the Maximum Premium. Nothing
herein shall limit the ability of USPowerGenCo to satisfy its obligations under this Section
4.10(b) by purchasing a tail policy for each of the directors’ and officers’ insurance policies in
effect as of the Closing Date that covers, for a period of six years after the Closing Date, claims
related to facts or events that occurred prior to the Closing Date. USPowerGenCo agrees, and will
cause its Subsidiaries, not to take any action that would have the effect of limiting the aggregate
amount of insurance coverage required to be maintained for the individuals referred to in this
Section 4.10.

     (c) If USPowerGenCo or any of its Subsidiaries or any of their successors or assigns
(i) shall merge or consolidate with or merge into any other corporation or entity and shall
not be the surviving or continuing corporation or entity of such consolidation or merger or
(ii) shall transfer all or substantially all of their respective properties and assets to
any individual, corporation or other entity, then in each such case, proper provisions shall be
made so that the successors or assigns of USPowerGenCo or its Subsidiaries shall assume all of the
obligations set forth in this Section 4.10.

     4.11 2006 Audited Financial Statements. Promptly upon completion thereof, each of EBG
and Astoria shall deliver to the other party a complete and correct copy of the consolidated
statement of operations, changes in unitholder’s equity and cash flows of EBG or Astoria, as
applicable, and its Subsidiaries for the fiscal year ended December 31, 2006 and consolidated
balance sheets of EBG or Astoria, as applicable, and its Subsidiaries as at such date, together
with the notes thereto, audited by the applicable certified public accountants.

     4.12 Rating Agencies; Preparation of 144A Financial Statements. Each of the parties
acknowledges and agrees that each of EBG and Astoria will be seeking lender consent and making
rating agency presentations in connection with the transactions contemplated hereby. Without
otherwise limiting the generality of the obligations of the parties hereunder, each of the parties
agrees to provide the other with such financial information and other information regarding such
party and its Subsidiaries and its Affiliates that the other party may reasonably request to
facilitate obtaining such consent or making such rating agency presentation. In no event shall any
bank meeting to obtain such lender consent or any rating agency presentation be deemed to violate
the provisions of Section 4.8 hereof. Furthermore, each of the parties acknowledges and agrees that
it is

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the intention of the parties that the capital stock of USPowerGenCo be tradable from and after the
Closing Date under Rule 144A under the Securities Act and that, to facilitate such trading, each
party shall cooperate with the other to provide such financial information and other information as
may be necessary (including preparation of combined financial statements) so that USPowerGenCo can
permit such trades from and after the Closing without violation of applicable law.

     4.13 Initial Public Offering. Each of the parties acknowledges and agrees that each of
EBG and Astoria desires that after the Closing USPowerGenCo conduct an initial registered public
offering of its common stock under the Securities Act, underwritten by an underwriter of recognized
national standing (an “IPO”), as promptly as reasonably practicable (subject to compliance
with the requirements of the Securities and Exchange Commission with respect to financial
statements for such offering), and each of EBG and Astoria agrees to, from and after the date of
this Agreement, reasonably cooperate and take such reasonable action as is necessary or desirable
to complete an IPO as promptly as reasonably practicable. Without otherwise limiting the generality
of the obligations of the parties hereunder, each of the parties agrees to provide the other with
such financial information and other information regarding such party and its Subsidiaries and
Affiliates that the other party may reasonably request to facilitate the preparation for an IPO
(including preparation of combined financial statements, preparation and filing of registration
statements and attendance at drafting and similar sessions, and making employees and accountants
reasonably available therefor).

     4.14 Unit Appreciation Rights. EBG shall make payments in respect of each Unit
Appreciation Right (“UAR”) granted pursuant to the 2006 Unit Appreciation Rights Plan of EBG (the
“UAR Plan”) which has been validly exercised prior to the Closing. The Board of Directors
of EBG shall not take any action which would require EBG to make a payment in respect of an
unexercised UAR. The Board of Directors of EBG shall terminate the UAR Plan effective as of the
Closing, as a result of which EBG shall have no outstanding or ongoing obligations under the UAR
Plan, other than the obligation to make payments with respect to any UARs which were validly
exercised prior to the Closing and for which payment has not been made.

ARTICLE V

CONDITIONS TO CLOSING

     5.1 Conditions to the Obligations of EBG and Astoria. The obligations of EBG and
Astoria to effect the Mergers shall be subject to the fulfillment or waiver by EBG and Astoria on
or prior to the Closing Date, of each of the following conditions:

     (a) The Requisite Consent of EBG Members shall have been obtained.

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     (b) The waiting period under the HSR Act, including any extension thereof, shall have
been terminated or expired.

     (c) All authorizations, consents, approvals, filings and notifications listed on Exhibit
E shall have been made or obtained, without material conditions.

     (d) There shall not be in effect any injunction or other order issued by a court of
competent jurisdiction restraining or prohibiting the consummation of the transactions
contemplated by this Agreement.

     5.2 Conditions to the Obligation of Astoria. The obligation of Astoria to effect the
Mergers shall be subject to the satisfaction or waiver by Astoria on or prior to the Closing Date
of each of the following conditions:

     (a) The representations and warranties of EBG contained in Article II shall be true and
correct (disregarding any limitation as to “materiality” or “Material Adverse Effect” set
forth therein) on the date of this Agreement and at the Closing (except to the extent that
such representation and warranty speaks as of a particular date, in which case such
representation and warranty shall be true and correct as of that date), except where the
failure of the representations and warranties to so be true and correct, individually or in
the aggregate, has not had and would not reasonably be expected to have a Material Adverse
Effect on EBG; provided, however, that notwithstanding the foregoing, the
representations and warranties contained in Sections 2.1 and 2.2 shall be true and correct in
all material respects.

     (b) EBG shall have duly performed and complied in all material respects with all
agreements contained herein required to be performed or complied with by it at or before the
Closing.

     (c) EBG shall have delivered to Astoria a certificate, dated the Closing Date and signed
by EBG’s Chief Executive Officer or President and Chief Operating Officer, as to the
fulfillment of the conditions set forth in Sections 5.2(a) and 5.2(b).

     (d) USPowerGenCo and the holders of EBG Units representing not less than 75% of the
outstanding EBG Units shall have executed and delivered to New Astoria the Investor Rights
Agreement.

     (e) Since the date of this Agreement, EBG shall not have suffered any Material Adverse
Effect.

     (f) EBG shall have delivered evidence to Astoria, in form and substance reasonably
satisfactory to Astoria, that all equity interests in

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USPowerGenCo issued and outstanding as of immediately prior to the Closing have been canceled
for no consideration and without further liability to USPowerGenCo or any of its Subsidiaries.

     5.3 Conditions to the Obligation of EBG. The obligation of EBG to effect the Mergers
shall be subject to the satisfaction or waiver by EBG on or prior to the Closing Date of each of
the following conditions:

     (a) The representations and warranties of Astoria contained in Article III shall be true
and correct (disregarding any limitation as to “materiality” or “Material Adverse Effect” set
forth therein) on the date of this Agreement and at the Closing (except to the extent that
such representation and warranty speaks as of a particular date, in which case such
representation and warranty shall be true and correct as of that date), except where the
failure of the representations and warranties to so be true and correct, individually or in
the aggregate, has not had and would not reasonably be expected to have a Material Adverse
Effect on Astoria; provided, however, that notwithstanding the foregoing, the
representations and warranties contained in Sections 3.1 and 3.2 shall be true and correct in
all material respects.

     (b) Astoria shall have duly performed and complied in all material respects with all
agreements contained herein required to be performed or complied with by it at or before the
Closing.

     (c) Astoria shall have delivered to EBG a certificate, dated the Closing Date and signed
by a senior executive officer of Astoria, as to the fulfillment of the conditions set forth in
Sections 5.3(a) and 5.3(b).

     (d) USPowerGenCo shall have executed and delivered the Consulting Agreement.

     (e) New Astoria and the members of New Astoria shall have executed and delivered to EBG
the Investor Rights Agreement.

     (f) Astoria shall have delivered to EBG a statement similar to that provided for in
Treasury Regulation Section 1.897-1(h) (1) (i) that, were Astoria a U.S. Corporation,
interests in Astoria would not constitute a U.S. real property interest.

     (g) Since the date of this Agreement, Astoria shall not have suffered any Material
Adverse Effect.

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ARTICLE VI

NO SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS

     6.1 No Survival of Representations, Warranties and Covenants. The representations,
warranties and covenants of Astoria and EBG contained in this Agreement or in any certificate
delivered in connection with this Agreement (other than the covenants contained in Section 1.8,
Section 4.10 and Article IX of this Agreement) shall not survive the Closing, and any and all
breaches of such representations and warranties and covenants shall be deemed waived as of the
Closing.

ARTICLE VII

TERMINATION

     7.1 Termination. This Agreement may be terminated at any time prior to the Closing
Date:

     (a) By the written agreement of Astoria and EBG;

     (b) By either EBG (on behalf of itself and its Subsidiaries party hereto), on the one
hand, or Astoria, on the other hand, by written notice to the other party if:

     (i) after 5:00 p.m. New York City time on the Termination Date, if the Mergers
shall not have been effected pursuant hereto, unless such date is extended by the mutual
written consent of EBG and Astoria, provided that such termination right shall
not be available to the party whose failure or the failure of whose affiliates to
fulfill or cause to be fulfilled any obligation under this Agreement has been the
primary cause of the failure of the Mergers to occur prior to such date;

     (ii) any event shall occur after the date hereof that shall have made it impossible
to satisfy a condition precedent to the terminating party’s obligations to perform its
obligations hereunder, unless the occurrence of such event shall be due to the failure
of the terminating party to perform or comply with any of the agreements, covenants or
conditions hereof to be performed or complied with by such party prior to the Closing;
or

     (iii) the Requisite Consent of EBG Members shall not have been obtained by the date
which is ninety (90) days after the date hereof, provided that the right to
terminate this Agreement pursuant to this

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Section 7.1(b)(iii) shall not be available to EBG if it has not complied with its
obligations under Section 4.2 and Section 4.6, or if the information statement has not
been mailed or the time period for return of the written consents has not expired.

     (c) By Astoria, by written notice to EBG if:

     (i) EBG shall have breached or failed to comply with any representation, warranty,
covenant or agreement set forth in this Agreement which would cause any of the
conditions set forth in Section 5.2(a) or 5.2(b) not to be satisfied, and such breach is
incapable of being cured by the Termination Date; provided, however,
that Astoria is not then in material breach of this Agreement so as to cause any of the
conditions set forth in Section 5.1, 5.3(a) or 5.3(b) not to be satisfied;

     (ii) EBG or any of its Subsidiaries or their respective representatives shall have
willfully or materially breached in any respect their respective obligations under
Section 4.6; or

     (iii) subject to the penultimate sentence of Section 4.6(b), the Board of Directors
of EBG shall (A) fail to authorize, approve or recommend the Mergers, or
(B) effect a Change in the EBG Recommendation, or (C) fail to reconfirm
its authorization, approval or recommendation of the Mergers within three Business Days
after a written request by Astoria to do so.

     (d) By EBG, by written notice to Astoria:

     (i) if Astoria shall have breached any representation, warranty, covenant or
agreement set forth in this Agreement which would cause any of the conditions set forth
in Section 5.3(a) or 5.3(b) not to be satisfied, and such breach is incapable of being
cured by the Termination Date; provided, however, that EBG is not then
in material breach of this Agreement so as to cause any of the conditions set forth in
Section 5.1, 5.2(a) or 5.2(b) not to be satisfied; or

     (ii) pursuant to the last sentence of Section 4.6(b), provided that
(A) EBG is and has been in compliance in all respects with Section 4.6, and
(B) the Board of Directors of EBG concurrently approves, and EBG concurrently
enters into, a definitive agreement providing for the implementation of a Superior
Proposal.

     7.2 Effect of Termination.

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     (a) In the event of the termination of this Agreement pursuant to the provisions of Section
7.1, this Agreement shall become void and have no effect, and there shall be no liability or
obligation on the part of any party hereto or any of its directors, officers, representatives,
members, stockholders, Subsidiaries or Affiliates, except as provided in Sections 4.8 regarding
publicity, this Section 7.2 and Article IX, each of which will survive termination. Except as
otherwise provided in Section 7.2(e), nothing in this Section 7.2 shall be deemed to release any
party from any liability for any willful breach by such party of its representations, warranties,
covenants or other agreements set forth in this Agreement. If the transactions contemplated by this
Agreement are terminated as provided herein, each party shall return to the other party all
documents and other materials received from the other party, its Affiliates or their agents
(including all copies of or materials developed from any such documents or other materials)
relating to the transactions contemplated hereby, whether obtained before or after the execution
hereof.

     (b) In the event that this Agreement is terminated (i) by Astoria pursuant to Section
7.1(c)(iii) or (ii) by EBG pursuant to Section 7.1(d)(ii), then, EBG shall pay $46,000,000
(the “EBG Termination Fee”) to Astoria. If EBG is required to pay Astoria the EBG
Termination Fee pursuant to this Section 7.2(b), such EBG Termination Fee shall be payable
immediately prior to and as a condition to the termination of this Agreement in the event of
termination by EBG, and not later than two Business Days after the receipt by EBG of a notice of
termination from Astoria in the event of termination by Astoria.

     (c) In the event that this Agreement is terminated by Astoria or by EBG pursuant to Section
7.1(b)(iii) and at the time of such termination no Takeover Proposal is pending, then EBG shall pay
Astoria the Astoria Expenses as provided in Section 9.1(b), provided that if within six
months after such termination EBG or any of its Subsidiaries enters into a definitive agreement to
consummate or consummates any Takeover Proposal then, upon and as a condition to such action, EBG
shall pay $23,000,000 (the “EBG Partial Termination Fee”) to Astoria, less the amount of
any Astoria Expenses previously paid by EBG to Astoria pursuant to Section 9.1(b).

     (d) In the event that this Agreement is terminated by Astoria or by EBG pursuant to Section
7.1(b)(iii) and at the time of such termination a Takeover Proposal is pending then EBG shall pay
Astoria the Astoria Expenses as provided in Section 9.1(b), provided that if within six
months after such termination EBG or any of its Subsidiaries enters into a definitive agreement to
consummate or consummates any Takeover Proposal then, upon and as a condition to such action, EBG
shall pay the EBG Termination Fee to Astoria, less the amount of any Astoria Expenses previously
paid by EBG to Astoria pursuant to Section 9.1(b).

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     (e) In the event that this Agreement is terminated by Astoria pursuant to Section 7.1(c)(i),
provided that any breach or failure to comply on the part of EBG shall be willful,
provided further that if within six months after such termination EBG or any of its
Subsidiaries enters into a definitive agreement to consummate or consummates any Takeover Proposal,
then, upon and as a condition to such action, EBG shall pay the EBG Termination Fee to Astoria.
Notwithstanding anything else to the contrary in this Agreement, in the event EBG pays the EBG
Termination Fee to Astoria in accordance with this Section 7.2(e), EBG shall have no further
liability to Astoria for monetary damages under this Agreement.

     (f) In the event that this Agreement is terminated by Astoria pursuant to Section 7.1(c)(ii),
EBG shall pay the EBG Termination Fee to Astoria. Such EBG Termination Fee shall be payable not
later than two Business Days after the receipt by EBG of a notice of termination from Astoria.

     (g) For purposes of this Section 7.2, the term “Takeover Proposal” shall have the meaning
ascribed thereto in Section 4.6(d), except that all references to 15% shall be changed to 50%.

     (h) Any amount that becomes payable pursuant to this Section 7.2 or 9.1, shall be paid by wire
transfer of immediately available funds to an account designated by Astoria. The parties hereto
agree and understand that in no event shall EBG be required to pay the EBG Termination Fee on more
than one occasion. The parties hereto acknowledge that the agreements contained in this Section 7.2
and Section 9.1 are an integral part of the transactions contemplated by this Agreement, and that,
without these agreements, Astoria would not have entered into this Agreement and that any amounts
payable pursuant to this Section 7.2 or Section 9.1 do not constitute a penalty. In the event that
EBG fails to pay the EBG Termination Fee when due, EBG shall reimburse Astoria for all reasonable
costs and expenses (including reasonable legal fees and expenses) incurred by Astoria in connection
with any action, including the filing of any lawsuit, taken to collect payment of such amounts,
together with interest on such unpaid amounts at the prime lending rate prevailing during such
period as published in The Wall Street Journal, calculated on a daily basis from the date such
amounts were required to be paid until the date of actual payment. Astoria agrees that any payment
of the EBG Termination Fee, together with the reimbursement of Astoria Expenses pursuant to Section
9.1, shall be Astoria’s sole remedy in respect of termination of this Agreement, except, subject to
Section 7.2(e), in the case of any willful breach of this Agreement by the Company.

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ARTICLE VIII

DEFINITIONS AND INTERPRETATION

     8.1 Definition of Certain Terms; Interpretation. The terms defined in this Article
VIII, whenever used in this Agreement (including in the Schedules of the EBG Disclosure Letter or
the Astoria Disclosure Letter), shall have the respective meanings indicated below for all purposes
of this Agreement (each such meaning to be equally applicable to the singular and the plural forms
of the respective terms so defined). All references herein to a Section, Article, Exhibit or
Schedule are to a Section, Article, Exhibit or Schedule of or to this Agreement, unless otherwise
indicated and the words “here of and “hereunder” will be deemed to refer to this Agreement as a
whole and not to any particular provision. The words “includes” and “including” will be deemed to
be followed by the words “without limitation” whenever used. Whenever the context may require, any
pronoun shall include the corresponding masculine, feminine and neuter forms. The parties have
participated jointly in the negotiation and drafting of this Agreement. In the event an ambiguity
or question of intent or interpretation arises, this Agreement shall be construed as if drafted
jointly by the parties and no presumption or burden of proof shall arise favoring or disfavoring
any party by virtue of the authorship of any provisions of this Agreement. Whenever there is a
representation by a party that a Contract or other information has been provided, delivered or made
available to another party hereunder, such party shall, regardless of whether such representation
or warranty specifically includes language to such effect, be deemed a representation and warranty
by such party that a complete and correct copy of such Contract or other information (including all
amendments, supplements, and extensions thereto) has been provided, delivered or made available by
such party.

     Affiliate: with respect to any Person, a Person that directly or indirectly
through one or more intermediaries, controls, is controlled by, or is under common control
with such Person. “Control” (including the terms “controlled by” and “under common
control with”) means the possession, directly or indirectly, of the power to direct or cause
the direction of the management policies of a Person, whether through the ownership of voting
securities, by contract or credit arrangement, as trustee or executor, or otherwise.

     Agreement: this Agreement and Plan of Merger, including the Exhibits and
Schedules hereto.

     Astoria: the meaning set forth in the preamble.

     Astoria Annual Financial Statements: the meaning set forth in Section 3.4.

     Astoria Benefit Plan: the meaning set forth in Section 3.11 (a).

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     Astoria Certificate of Merger: the meaning set forth in Section 1.2(b).

     Astoria December 2006 Balance Sheet: the meaning set forth in Section 3.4.

     Astoria Disclosure Letter: the meaning set forth in the first paragraph of
Article III.

     Astoria Employment Agreements: the meaning set forth in Section 3.11(a).

     Astoria Expenses: the meaning set forth in Section 9.2(b).

     Astoria Facilities: the meaning set forth in Section 3.10(a).

     Astoria Financial Statements: the meaning set forth in Section 3.4.

     Astoria Interim Financial Statements: the meaning set forth in Section 3.4.

     Astoria Leased Real Property: the meaning set forth in Section 3.13(a).

     Astoria Leases: the meaning set forth in Section 3.13(c).

     Astoria Licenses: the meaning set forth in Section 3.14(b).

     Astoria LLC Agreement: the meaning set forth in Section 1.6(a).

     Astoria Material Contracts: the meaning set forth in Section 3.15.

     Astoria Merger: the meaning set forth in paragraph C of the Recitals.

     Astoria Merger Consideration: the meaning set forth in Section 1.3(b).

     Astoria MergerCo: the meaning set forth in the preamble.

     Astoria MergerCo Units: the units of limited liability company interest in
Astoria MergerCo.

     Astoria Owned Intellectual Property: the meaning set forth in Section 3.14(a).

     Astoria Owned Real Property: the meaning set forth in Section 3.13(a).

     Astoria Project Company Subsidiary: Astoria Generating Company, L.P., a Delaware
limited partnership.

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     Astoria Permits: the meaning set forth in Section 3.9(b).

     Astoria September 2006 Financial Statements: the meaning set forth in Section
3.4.

     Astoria Surviving Company: the meaning set forth in Section 1.1 (b).

     Astoria Surviving Company Units: the meaning set forth in Section 1.3(f).

     Astoria Units: the units of limited liability company interest in Astoria.

     BG: Boston Generating, LLC, a Delaware limited liability company.

     Business Day: each Monday, Tuesday, Wednesday, Thursday and Friday that is not a
day on which banking institutions in New York, New York are authorized or obligated by law or
executive order to close.

     Certificates of Merger: the meaning set forth in Section 1.2(b).

     Change: the meaning set forth in Section 4.2.

     Change in the EBG Recommendation: the meaning set forth in Section 4.2.

     Class A Common Stock: means the USPowerGenCo’s Class A Common Stock, par value
$0.0001 per share.

     Class B Common Stock: means the USPowerGenCo’s Class B Common Stock, par value
$0.0001 per share.

     Closing: the meaning set forth in Section 1.2(a).

     Closing Date: the meaning set forth in Section 1.2(a).

     COBRA: Part 6 of Subtitle B of Title I of ERISA, section 4980B of the Code, and
any similar state law.

     Code: the Internal Revenue Code of 1986, as amended.

     Consent: any consent, approval, authorization, order, filing, registration or
qualification of or with any Person.

     Consulting Agreement: the Consulting Agreement in the form attached hereto as
Exhibit F.

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     Contract: any written agreement, contract, commitment, instrument, lease,
license, undertaking or arrangement.

     Converted Warrant: the meaning set forth in Section 1.4.

     Delaware Secretary of State: the meaning set forth in Section 1.2(b).

     DOJ: the meaning set forth in Section 4.5(b).

     EBG: the meaning set forth in the preamble.

     EBG Annual Financial Statements: the meaning set forth in Section 2.4.

     EBG Benefit Plans: the meaning set forth in Section 2.11 (a).

     EBG Certificate of Merger: the meaning set forth in Section 1.2(b).

     EBG Disclosure Letter: the meaning set forth in the first paragraph of Article
II.

     EBG Employment Agreements: the meaning set forth in Section 2.11 (a).

     EBG Facilities: the meaning set forth in Section 2.10(a).

     EBG Financial Statements: the meaning set forth in Section 2.4.

     EBG Fully Diluted Shares: the meaning set forth in Section 1.8.

     EBG Interim Financial Statements: the meaning set forth in Section 2.4.

     EBG Leased Real Property: the meaning set forth in Section 2.13(a).

     EBG Leases: the meaning set forth in Section 2.13(c).

     EBG Licenses: the meaning set forth in Section 2.14(b).

     EBG Material Contracts: the meaning set forth in Section 2.15.

     EBG Merger: the meaning set forth in paragraph C of the Recitals.

     EBG Merger Consideration: the meaning set forth in Section 1.3(a).

     EBG Owned Intellectual Property: the meaning set forth in Section 2.14(a).

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     EBG Owned Real Property: the meaning set forth in Section 2.13(a).

     EBG Partial Termination Fee: the meaning set forth in Section 7.2(c).

     EBG Percentage: the meaning set forth in Section 1.8.

     EBG Permits: the meaning set forth in Section 2.9(b).

     EBG Preliminary December 2006 Balance Sheet: the meaning set forth in Section
2.4.

     EBG Project Company Subsidiary: each of Mystic I, LLC, a Delaware limited
liability company; Mystic Development, LLC, a Delaware limited liability company; and Fore
River Development, LLC, a Delaware limited liability company.

     EBG Recommendation: the meaning set forth in Section 4.2.

     EBG September 2006 Financial Statements: the meaning set forth in Section 2.4.

     EBG Surviving Company: the meaning set forth in Section 1.1 (a).

     EBG Surviving Company Units: the meaning set forth in Section 13(e).

     EBG Termination Fee: the meaning set forth in Section 7.2(b).

     EBG Units: the units of limited liability company interest in EBG.

     EBG Warrants: Warrants covering the purchase of EBG Units.

     Effective Time: the meaning set forth in Section 1.2(b).

     Employment and Withholding Taxes: any federal, state, provincial, local, foreign
or other employment, unemployment insurance, social security, disability, workers’
compensation, payroll, health care or other similar tax, duty or other governmental charge or
assessment or deficiencies thereof and all Taxes required to be withheld by or on behalf of a
company and each of its Subsidiaries in connection with amounts paid or owing to any employee,
independent contractor, creditor or other party, in each case, on or in respect of the
business or assets thereof.

     Environmental Law: any federal, state, or local law (including common law),
statute, rule, regulation or order relating to (i) the manufacture, transport, use, treatment,
storage, disposal, release or threatened release of Hazardous

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Substances, or (ii) the protection of human health (as it relates to exposure to
Hazardous Substances), pollution, or the protection of the environment (including, without
limitation, natural resources, air, and surface or subsurface land or waters).

     EPA: the meaning set forth in Section 2.10(a).

     ERISA: the Employee Retirement Income Security Act of 1974, as amended.

     ERISA Affiliate: as to any Person, any trade or business (whether or not
incorporated) which, together with such Person (or their successors), is or would have been at
any date of determination occurring within the preceding six years, treated as a single
employer under section 414 of the Code.

     EWG: the meaning set forth in Section 2.10(a).

     Exchange: the meaning set forth in paragraph E of the Recitals.

     FERC: the Federal Energy Regulatory Commission and its successors.

     FPA: the Federal Power Act, as amended, and the rules and regulations promulgated
under such act.

     FTC: the meaning set forth in Section 4.5(b).

     GAAP: the meaning set forth in Section 2.4.

     Governmental Entity: any governmental or regulatory authority, agency, court,
commission or other entity, domestic or foreign.

     Hazardous Substance: any material or substance that: (i) is or contains
asbestos, polychlorinated biphenyls, petroleum or petroleum products, (ii) requires
investigation or remedial action pursuant to any Environmental Law, or is defined, listed or
identified as a “hazardous waste,” “hazardous substance,” “toxic substance” or words of
similar meaning or regulatory effect thereunder, or (iii) is regulated under any
Environmental Law because of its hazardous or deleterious properties or characteristics.

     HSR Act: the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended,
and the rules and regulations promulgated thereunder.

     Indemnified Parties: the meaning set forth in Section 4.10(a).

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     Intellectual Property: the meaning set forth in Section 2.14(a).

     Investor Rights Agreement: the Investor Rights Agreement in the form attached
hereto as Exhibit G.

     IPO: the meaning set forth in Section 4.13.

     IRS: the Internal Revenue Service.

     Knowledge of Astoria: the actual knowledge of Jacob Worenklein, Jeff Hunter, Mark
Sudbey, Belinda Foxworth or Ian Nutt.

     Knowledge of EBG: the actual knowledge of William Kriegel, Barry Sullivan, David
Tohir, Dan O’Shea or Paul Ehrenzeller.

     Leases: the meaning set forth in Section 2.13(c).

     Lien: any mortgage, pledge, deed of trust, hypothecation, claim, security
interest, title defect, encumbrance, burden, charge or other similar restriction, lease,
sublease, claim, title retention agreement, option, easement, covenant, encroachment or other
adverse claim.

     LLC Act: the meaning set forth in Section 1.1(a).

     Material Adverse Effect: with respect to Astoria or EBG, any event, change,
circumstance, state of facts or effect that, individually or in combination with other events,
changes, circumstances, facts or effects is, has had or would reasonably be expected to result
in a materially adverse effect on the business, operations, assets, liabilities, the financial
condition or results of operations of Astoria or EBG, as applicable, and its Subsidiaries
taken as a whole, other than any event, change, circumstance, state of facts or effect that
results or arises from or relates to (i) changes in (x) economic, regulatory
or political conditions (including acts of war, declared or undeclared, armed hostilities and
terrorism), financial, securities or other market conditions or prevailing interest rates,
(y) the industry in which Astoria or EBG, as applicable, operates, or (z)
laws, regulations or accounting standards, principles or interpretations, provided
that, in the case of the foregoing clauses (x), (y) and (z), such events, changes,
circumstances, facts or effects have not had a disproportionate impact on Astoria or EBG, as
applicable, and its Subsidiaries, taken as a whole, relative to other companies operating in
the same industry in which Astoria and EBG, and their Subsidiaries operate, (ii) any
action expressly required to be taken pursuant to this Agreement or taken upon the written
consent or written request of EBG or Astoria, as applicable, or (iii) the announcement
of this Agreement or the performance of obligations hereunder.

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     Material Contract: the meaning set forth in Section 2.15.

     Maximum Premium: the meaning set forth in Section 4.10(b).

     MDCP IV: Madison Dearborn Capital Partners IV, L.P., a Delaware limited
partnership.

     Mergers: the meaning set forth in paragraph C of the Recitals.

     New Astoria: the meaning set forth in paragraph E of the Recitals.

     New Astoria Percentage: the meaning set forth in Section 1.8.

     Notice Period: the meaning set forth in Section 4.6(b).

     NYPSC: the New York Public Service Commission and its successor.

     ordinary course, ordinary course of business and similar phrases: the usual and
ordinary course, consistent with past practice, of the operation of the businesses of any
Person and its Subsidiaries, including with regard to nature, frequency and magnitude.

     Organizational Documents: with respect to any limited liability company, its
articles or certificate of formation and operating or limited liability company operating
agreement and with respect to any corporation, its articles or certificate of incorporation
and by-laws.

     Permitted Liens: (i) Liens disclosed in the EBG Financial Statements or
the Astoria Financial Statements, as applicable, including the notes thereto, (ii)
Liens for taxes, assessments and similar charges that are not yet delinquent or that are being
contested in good faith and for which adequate reserves have been established in accordance
with GAAP requirements on the applicable party’s books and records; (iii) mechanic’s,
materialmen’s, carrier’s, repairer’s and other similar Liens arising or incurred in the
ordinary course of business that secure obligations that are not yet overdue for a period of
more than 30 days or that are being contested in good faith; (iv) easements, rights of
way, zoning ordinances and other similar encumbrances affecting real property that are
incurred in the ordinary course of business and do not materially detract from the value or
interfere with the present use of the property, (v) statutory Liens in favor of
lessors arising in connection with any property leased to a company or its Subsidiaries;
(vi) pledges or deposits to secure obligations under workers’ compensation laws or
similar legislation; and (vii) deposits to secure the performance of bids, trade
contracts (other than for borrowed money), leases,

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statutory obligations, surety and appeal bonds, performance bonds and other obligations
of a like nature incurred in the ordinary course of business.

     Person: any natural person, firm, partnership, association, corporation,
company, trust, business trust, Governmental Entity or other entity.

     Plan: each “employee benefit plan”, as such term is defined in section 3(3)
of ERISA (whether or not subject to ERISA), and each bonus, incentive or deferred
compensation, severance, termination, retention, change of control, stock option, stock
appreciation, stock purchase, phantom stock or other equity-based, performance or other
employee or retiree benefit or compensation plan, program, arrangement, policy or
understanding.

     PUHCA: the Public Utility Holding Company Act of 2005, as amended, and the
rules and regulations promulgated by FERC under such act.

     Requisite Consent of EBG Members: the written consent of holders of EBG
Units representing not less than 75% of the voting power of the outstanding EBG Units
with respect to the adoption of this Agreement and to the transactions contemplated
hereby, including the Mergers.

     Securities Act: the Securities Act of 1933, as amended.

     Subsidiary: with respect to any Person (for the purposes of this
definition, the “parent”), any other Person (other than a natural person),
whether incorporated or unincorporated, of which at least a majority of the securities
or ownership interests having by their terms ordinary voting power to elect a majority
of the board of directors or other persons performing similar functions is directly or
indirectly owned or controlled by the parent or by one or more of its respective
Subsidiaries or by the parent and any one or more of its respective Subsidiaries.

     Superior Proposal: the meaning set forth in Section 4.6(d).

     Takeover Proposal: the meaning set forth in Section 4.6(a).

     Tax Return: all returns, reports, declarations, claim for refunds,
information return or other document (including any relating or supporting schedule,
statement or information) supplied or required to be supplied to a taxing authority
relating to Taxes.

     Taxes: all U.S. or non-U.S. federal, national, state or local taxes,
assessments, levies or other governmental charges in the nature of taxes, including,
without limitation, all income, franchise, withholding, payroll,

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alternative minimum, estimated, natural resources, unemployment insurance, social
security, sales, use, excise, real and personal property, stamp, transfer, value added and
workers’ compensation taxes, together with all interest, penalties and additions payable with
respect thereto.

     Termination Date: the date that is the five-month anniversary of the earlier of:
(i) the date (the “Publication Date”) that the NYPSC publishes a notice in the
New York State Register in connection with the parties’ application under Section 70 of the
New York State Public Service Law and (ii) April 20, 2007; provided that if
all of the conditions to Closing are satisfied upon the Termination Date (determined without
regard to this proviso), other than (a) the condition of NYPSC approval under Section
70 of the New York Public Service Law in the absence of a ruling declaring that the NYPSC will
not review the Mergers under Section 70 because the Wallkill presumption is satisfied, and
(b) conditions which by their terms are to be satisfied at Closing, the “Termination
Date” shall be the six month anniversary of the earlier date between clauses (i) and (ii)
above.

     UAR: the meaning set forth in Section 4.14.

     UAR Plan: the meaning set forth in Section 4.14.

     USPowerGenCo: the meaning set forth in the preamble.

     Worker Adjustment and Retraining Notification Act: The Worker Adjustment and
Retraining Notification Act, as amended.

ARTICLE IX

GENERAL PROVISIONS

     9.1 Expenses.

     (a) Except as otherwise specifically provided for in this Agreement, EBG and its Subsidiaries
party hereto, on the one hand, Astoria, on the other hand, shall bear their respective expenses,
costs and fees (including attorneys’ and auditors’ if any) in connection with the transactions
contemplated hereby, including the preparation, execution and delivery of this Agreement and
compliance herewith, whether or not the Mergers are effected; provided that Astoria and EBG
shall share equally all filing fees in connection with the filings required by the HSR Act. In no
event shall the transaction fees and transaction bonuses of Astoria (including amounts payable to
Affiliates as transaction fees or transaction bonuses which are expressly permitted to be paid, but
specifically excluding transfer taxes and expenses reasonably related to the IPO) exceed
$34,000,000. For purposes of confirming that the total of such transaction fees and transaction
bonuses

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does not exceed $34,000,000, EBG shall have a reasonable opportunity to review expenses that were
deemed to be reasonably related to the IPO.

     (b) Notwithstanding anything to the contrary contained in this Agreement, in the event that
this Agreement is terminated, by Astoria or EBG pursuant to Section 7.1(b)(iii) then EBG shall pay
promptly (but in any event within two business days), as directed by Astoria in writing, all of
Astoria’s out-of-pocket fees and expenses (including reasonable legal fees and expenses) incurred
by Astoria and its Affiliates on or prior to the termination of this Agreement in connection with
the transactions contemplated by this Agreement (the “Astoria Expenses”), provided
that the aggregate amount of all such Astoria Expenses for which EBG has an expense reimbursement
obligation when triggered pursuant to this Section 9.1(b) shall not exceed $6,000,000.

     9.2 Further Actions. Subject to the terms and conditions of this Agreement, each party
shall execute and deliver such certificates and other documents and take such actions as may
reasonably be requested by the other party in order to effect the transactions contemplated by this
Agreement.

     9.3 Certain Limitations. It is the explicit intent and understanding of each of the
parties that no party nor any of its Affiliates, representatives or agents is making any
representation or warranty whatsoever, oral or written, express or implied, other than those set
forth in Articles II and III and no party is relying on any statement, representation or warranty,
oral or written, express or implied, made by another party or such other party’s Affiliates,
representatives or agents, except for the representations and warranties set forth in such
Articles. The parties agree that this is an arm’s-length transaction in which the parties’
undertakings and obligations are limited to the performance of their undertakings and obligations
under this Agreement.

     9.4 Notices. All notices, requests, demands, waivers and other communications required
or permitted to be given under this Agreement shall be in writing and shall be deemed to have been
duly given if (i) delivered personally, (ii) mailed, certified or registered mail
with postage prepaid, (iii) sent by next-day or overnight mail or delivery or (iv)
sent by fax, as follows:

	 	(a)	 	if to EBG,

EBG Holdings LLC

The Schrafft Center

529 Main Street, Suite 605

Charlestown, MA 02129

Attention: Chief Executive Officer

Tel: (617) 381-2270

Fax: (617) 381-2211

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     Copies of any of the same shall also be delivered to the following:

K Road BG Management, LLC

330 Madison Avenue, 25th Floor

New York, NY 10017

Attention: William Kriegel, CEO

Tel: (212) 351-0510

Fax:(212) 351-0515

and

Debevoise & Plimpton LLP

919 Third Avenue

New York, New York 10022

Fax: (212) 909-6836

Telephone: (212) 909-6000

Attention: John M. Allen, Esq. and Robert F. Quaintance Jr., Esq.

	 	(b)	 	if to Astoria,

c/o US Power Generating Company, LLC

505 Fifth Avenue, 21st Floor

New York, NY 10017

Fax:(212) 792-0899

Telephone: (212) 792-0810

Attention: Chief Executive Officer

     Copies of any of the same shall also be delivered to the following:

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Madison Dearborn Partners, LLC

Three First National Plaza

70 W. Madison, Suite 3800

Fax: (312) 895-1051

Telephone: (312) 895-1000

Attention: Thomas S. Souleles and Patrick Eilers

Kirkland & Ellis LLP

200 East Randolph Drive

Fax: (312) 861-2200

Telephone: (312) 861-2000

Attention: Mitchell F. Hertz, P.C. and Richard J. Campbell, P.C.

or, in each case, at such other address as may be specified in writing to the other parties hereto.

     All such notices, requests, demands, waivers and other communications shall be deemed to have
been received (i) if by personal delivery, on the day after such delivery, (ii) if
by certified or registered mail, on the seventh Business Day after the mailing thereof,
(iii) if by next-day or overnight mail or delivery, on the day delivered or (iv) if
by fax, on the next day following the day on which such fax was sent, provided that a copy is also
sent by certified or registered mail.

     9.5 Limited Disclosure. Notwithstanding anything to the contrary contained in this
Agreement or in any other express or implied understanding or agreement with any Person, each of
the parties hereto and their equityholders and representatives may disclose the tax treatment and
tax structure of the transactions contemplated by this Agreement, provided that no Person
shall be permitted by virtue of this paragraph to disclose the name of, or any other identifying
information with respect to, any party to this Agreement.

     9.6 Binding Effect. This Agreement shall be binding upon and inure to the benefit of
the parties hereto and their respective heirs, successors and permitted assigns.

     9.7 Assignment; Successors; Third Party Beneficiaries. This Agreement shall not be
assignable by any party hereto without the prior written consent of all of the other parties and
any attempt to assign this Agreement without such consent shall be void and of no effect. Nothing
in this Agreement, expressed or implied, is intended or shall be construed to confer upon any
Person other than the parties hereto, and their successors and assigns permitted by this Section
9.7, any right, remedy or claim under or by reason of this Agreement, other than, following the
Closing, (a) the rights of the holders of Class A Common Stock or Class B Common Stock of
USPowerGenCo under Section 1.8, and (b) the rights of former directors and officers of
Astoria, EBG and their Subsidiaries

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under Section 4.10. The agreements with respect to the foregoing Persons are intended to be for the
benefit of the Persons covered thereby and may be enforced by such Persons. Nothing else in this
Agreement, express or implied, is intended or shall be construed to create any third-party
beneficiaries.

     9.8 Amendment; Waivers, etc. No amendment, modification or discharge of this
Agreement, and no waiver hereunder, shall be valid or binding unless set forth in writing and duly
executed by the party against whom enforcement of the amendment, modification, discharge or waiver
is sought; provided, however, that no amendment shall be made that by law requires
further approval by the holders of the EBG Units without such approval having been obtained. Any
such waiver shall constitute a waiver only with respect to the specific matter described in such
writing and shall in no way impair the rights of the party granting such waiver in any other
respect or at any other time. The waiver by any of the parties hereto of a breach of or a default
under any of the provisions of this Agreement or a failure to or delay in exercising any right or
privilege hereunder, shall not be construed as a waiver of any other breach or default of a similar
nature, or as a waiver of any of such provisions, rights or privileges hereunder. The rights and
remedies herein provided are cumulative and none is exclusive of any other, or of any rights or
remedies that any party may otherwise have at law or in equity.

     9.9 Entire Agreement. This Agreement (including the Exhibits and Schedules referred to
herein or delivered hereunder) constitute the entire agreement and supersede all prior agreements
and understandings, both written and oral, between the parties with respect to the subject matter
hereof.

     9.10 Severability. If any provision, including any phrase, sentence, clause, section
or subsection, of this Agreement is invalid, inoperative or unenforceable for any reason, such
circumstances shall not have the effect of rendering such provisions in question invalid,
inoperative or unenforceable in any other case or circumstance, or of rendering any other provision
herein contained invalid, inoperative, or unenforceable to any extent whatsoever.

     9.11 Headings. The headings contained in this Agreement are for purposes of
convenience only and shall not affect the meaning or interpretation of this Agreement.

     9.12 Counterparts. This Agreement may be executed in several counterparts (including by
facsimile and electronic transmission), each of which shall be deemed an original and all of which
shall together constitute one and the same instrument.

     9.13 Governing Law. THIS AGREEMENT SHALL BE CONSTRUED, PERFORMED AND ENFORCED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE, WITHOUT GIVING EFFECT TO ITS PRINCIPLES OR RULES
OF CONFLICT OF LAWS TO THE EXTENT SUCH PRINCIPLES OR

69

 

RULES WOULD REQUIRE OR PERMIT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION.

     9.14 Consent to Jurisdiction, etc.

     (a) Each of the parties hereto hereby irrevocably and unconditionally submits, for itself and
its property, to the exclusive jurisdiction of the Court of Chancery of the State of Delaware, in
any action or proceeding arising out of or relating to this Agreement or the transactions
contemplated hereby or for recognition or enforcement of any judgment relating thereto, and each of
the parties hereto hereby irrevocably and unconditionally agrees that all claims in respect of any
such action or proceeding may be heard and determined in such court. Each of the parties hereto
agrees that a final judgment in any such action or proceeding shall be conclusive and may be
enforced in other jurisdictions by suit on the judgment or in any other manner provided by law.

     (b) Each of the parties hereto hereby irrevocably and unconditionally waives, to the fullest
extent it may legally and effectively do so, any objection which it may now or hereafter have to
the laying of venue of any suit, action or proceeding arising out of or relating to this Agreement
or the transactions contemplated hereby in the Court of Chancery of the State of Delaware. Each of
the parties hereto hereby irrevocably waives, to the fullest extent permitted by law, the defense
of an inconvenient forum to the maintenance of such action or proceeding in any such court.

     (c) Each of the parties hereto hereby irrevocably and unconditionally consents to service of
process in the manner provided for notices in Section 9.4. Nothing in this Agreement will affect
the right of any party to this Agreement to serve process in any other manner permitted by law.

     9.15 Waiver of Punitive and Other Damages and Jury Trial.

     (a) EXCEPT IN CONNECTION WITH A WILLFUL BREACH OF THIS AGREEMENT, IN WHICH CASE, SUBJECT TO
SECTION 7.2(E), ANY PARTY TO THIS AGREEMENT SHALL HAVE THE RIGHT TO RECOVER UNLIMITED DANAGES, THE
PARTIES TO THIS AGREEMENT EXPRESSLY WAIVE AND FOREGO ANY RIGHT TO RECOVER PUNITIVE, EXEMPLARY, LOST
PROFITS, CONSEQUENTIAL OR SIMILAR DAMAGES IN ANY ARBITRATION, LAWSUIT, LITIGATION OR PROCEEDING
ARISING OUT OF OR RESULTING FROM ANY CONTROVERSY OR CLAIM ARISING OUT OF OR RELATING TO THIS
AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

     (b) EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS
AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE IT

70

 

HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT
OF ANY LITIGATION DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE
TRANSACTIONS CONTEMPLATED HEREBY.

     (c) EACH PARTY ACKNOWLEDGES AND AGREES THAT (i) THE COVENANTS, OBLIGATIONS AND
AGREEMENTS OF SUCH PARTY CONTAINED IN THIS AGREEMENT RELATE TO SPECIAL, UNIQUE AND EXTRAORDINARY
MATTERS, (ii) THE OTHER PARTIES TO THIS AGREEMENT ARE AND WILL BE RELYING ON SUCH
COVENANTS, OBLIGATIONS AND AGREEMENTS IN CONNECTION WITH ENTERING INTO THIS AGREEMENT AND THE
PERFORMANCE OF ITS OBLIGATIONS UNDER THIS AGREEMENT AND (C) A VIOLATION OF ANY OF THE
COVENANTS, OBLIGATIONS OR AGREEMENTS OF SUCH PARTY CONTAINED IN THIS AGREEMENT WILL CAUSE THE OTHER
PARTIES IRREPARABLE INJURY FOR WHICH ADEQUATE REMEDIES ARE NOT AVAILABLE AT LAW. THEREFORE, EACH
PARTY AGREES THAT THE OTHER PARTIES SHALL BE ENTITLED TO AN INJUNCTION, RESTRAINING ORDER OR SUCH
OTHER EQUITABLE RELIEF (WITHOUT THE REQUIREMENT TO POST BOND), INCLUDING SPECIFIC PERFORMANCE, AS A
COURT OF COMPETENT JURISDICTION MAY DEEM NECESSARY OR APPROPRIATE TO RESTRAIN SUCH PARTY FROM
COMMITTING ANY VIOLATION OF SUCH COVENANTS, OBLIGATIONS OR AGREEMENTS AND/OR TO REQUIRE SUCH PARTY
TO PERFORM ITS COVENANTS, OBLIGATIONS AND COMMITMENTS HEREUNDER. NOTWITHSTANDING ANYTHING IN THIS
SECTION 9.15(C), EACH PARTY EXPRESSLY WAIVES ANY RIGHT TO SEEK AN INJUNCTION, RESTRAINING ORDER OR
SUCH OTHER EQUITABLE RELIEF (INCLUDING SPECIFIC PERFORMANCE) THAT WOULD BE REASONABLY LIKELY TO
REQUIRE A PARTY TO MAKE A MATERIAL EXPENDITURE IN ORDER TO REMEDY A BREACH OF A REPRESENTATION OR
WARRANTY.

     (d) EACH PARTY CERTIFIES AND ACKNOWLEDGES THAT (i) NO REPRESENTATIVE, AGENT OR
ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD
NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE EITHER OF THE FOREGOING WAIVERS, (ii) IT
UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF SUCH WAIVERS, (iii) IT MAKES SUCH
WAIVERS VOLUNTARILY, AND (iv) IT HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG
OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 9.15.

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     IN WITNESS WHEREOF, the parties have duly executed this Agreement as of the date first above
written.

	 	 	 	 	 
	 	US POWER GENERATING COMPANY

 	 
	 	By 	/s/ William Kriegel
 	 
	 	 	Name: 	 William Kriegel	 
	 	 	Title:  	 	 
	 
	 	EBG HOLDINGS LLC

 	 
	 	By  	/s/ William Kriegel	 
	 	 	Name: 	 William Kriegel	 
	 	 	Title:  	 	 
	 
	 	EBG MERGER LLC

 	 
	 	By  	/s/ William Kriegel	 
	 	 	Name:	 William Kriegel	 
	 	 	Title:  	 	 
	 
	 	ASTORIA GENERATING COMPANY

HOLDINGS, LLC

 	 
	 	By  	/s/ William Kriegel	 
	 	 	Name:	 William Kriegel	 
	 	 	Title:  	 	 
	 
	 	ASTORIA MERGER LLC

 	 
	 	By  	/s/ William Kriegel	 
	 	 	Name:	 William Kriegel	 
	 	 	Title:  	 	 

72

 

	 	 	 	 	 

     IN WITNESS WHEREOF, the parties have duly executed this Agreement as of the date first above
written.

	 	 	 	 	 
	 	US POWER GENERATING COMPANY

 	 
	 	By  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	EBG HOLDINGS LLC

 	 
	 	By  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	EBG MERGER LLC

 	 
	 	By  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	ASTORIA GENERATING COMPANY HOLDINGS, LLC

 	 
	 	By  	/s/
Jacob J. Worenklein
 	 
	 	 	Name: Jacob J. Worenklein	 
	 	 	Title:  	Chairman & CEO 	 
	 
	 	ASTORIA MERGER LLC

 	 
	 	By  	 	 
	 	 	Name:  	 	 
	 	 	Title:

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