Exhibit 10.8.2 AMENDMENT NUMBER 1 TO CREDIT AGREEMENT by and among NRG GENERATING (NEWARK) COGENERATION INC. and NRG GENERATING (PARLIN) COGENERATION INC. CREDIT SUISSE, GREENWICH FUNDING CORPORATION AND ANY PURCHASING LENDER as Lender, and CREDIT SUISSE as Agent Dated as of June 28, 1996 AMENDMENT NUMBER 1 TO CREDIT AGREEMENT This AMENDMENT NUMBER 1 TO CREDIT AGREEMENT, dated as of June 28, 1996 ("Amendment"), is made by and among (i) NRG Generating (Newark) Cogeneration Inc., a Delaware corporation, and NRG Generating (Parlin) Cogeneration Inc., a Delaware corporation, (ii) CREDIT SUISSE, GREENWICH FUNDING CORPORATION, a Delaware corporation, and each Purchasing Lender (each, a "Lender" and collectively, the "Lenders"), and (iii) CREDIT SUISSE, as agent for the Lenders ("Agent"). W I T N E S S E T H : WHEREAS, the parties hereto have entered into the Credit Agreement dated as of May 17, 1996 (the "Credit Agreement"); and WHEREAS, the parties hereto desire to amend the Credit Agreement in certain respects on the terms and conditions set forth in this Amendment. NOW, THEREFORE, in consideration of the mutual covenants contained herein, the parties hereby agree as follows: 1. Definitions. For purposes of this Amendment, the terms used herein and not otherwise defined herein shall have the respective meanings assigned to them in Exhibit X to the Credit Agreement. 2. Amendment to the Credit Agreement. (a) Section 5.40 of the Credit Agreement is hereby amended by deleting the phrase "earlier to occur of (a) the Additional Funding Date and (b) the Initial Maturity Date," in such section and inserting in its place, "date occurring thirty days after the Additional Funding Date,". (b) Section 2.8(b)(ii) of the Credit Agreement is hereby amended by inserting after the phrase "Newark Power Purchase Agreement", in each place such phrase occurs, the phrase "or the Parlin Power Purchase Agreement". 3. Amendment to Exhibit X and Schedule 4.3B to the Credit Agreement. (a) The definition of "Base Rate Margin" is hereby amended by inserting after the phrase "1.000% per annum" in such definition the following phrase: ";provided, however, that if on any Calculation Delivery Date the Debt Service Coverage Ratio exceeds 1.40, then for the quarterly period ending on the Repayment Date immediately preceding such Calculation Delivery Date, the Base Rate Margin shall be the percentage specified in clause (i), (ii) or (iii) above, as applicable, minus 0.125%". (b) The definition of "LIBOR Margin" is hereby amended by inserting after the phrase "1.75% per annum" in such definition the following phrase: ";provided, however, that if on any Calculation Delivery Date the Debt Service Coverage Ratio exceeds 1.40, then for the quarterly period ending on the Repayment Date immediately preceding such Calculation Delivery Date, the Base Rate Margin shall be the percentage specified in clause (i), (ii) or (iii) above, as applicable, minus 0.125%". (c) The definition of "Maturity Date" is hereby amended by deleting the phrase "the date which is 15 years after the Initial Funding Date" in such definition and inserting in its place "June 30, 2011". (d) Schedule 4.3B to the Credit Agreement is hereby deleted as of the Additional Funding Date and is replaced as of the Additional Funding Date with a new Schedule 4.3B attached hereto as Annex A. 4. Governing Law. This Amendment is a contract made under the laws of the State of New York of the United States and shall for all purposes be governed by and construed in accordance with the laws of such State without regard to the conflict of law rules thereof. 5. Effectiveness of Credit Agreement. Except as expressly provided in this Amendment, the Credit Agreement shall continue and remain in full force and effect in all respects. 6. Counterparts;. This Amendment may be executed in several counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same agreement. IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed and delivered by their respective officers thereunto duly authorized as of the date first above written. CREDIT SUISSE, as Agent and Lender By: /s/ Louis Iaconetti Name: Louis D. Iaconetti Title: Associate By: /s/ Steven Dowe Name: Steven Dowe Title: Associate NRG GENERATING (NEWARK) COGENERATION INC. By: /s/ Leonard Bluhm Name: Leonard A. Bluhm Title: President NRG GENERATING (PARLIN) COGENERATION INC. By: /s/ Leonard Bluhm Name: Leonard A. Bluhm Title: President GREENWICH FUNDING CORPORATION, as Lender By: Credit Suisse, New York Branch, as Attorney-In-Fact By: /s/ Carin Okita Name: Carin L. Okita Title: Associate By: /s/ Thomas Meier Name: Thomas Meier Title: Associate