Exhibit 10.31.3 NRG GENERATING (U.S.) INC. 1996 STOCK OPTION PLAN GRANT OF EMPLOYEE NONQUALIFIED STOCK OPTION Date of Grant: THIS GRANT, dated as of the date of grant first stated above (the "Date of Grant"), is delivered by NRG Generating (U.S.) Inc. (the "Company") to ________________ (the "Grantee"), who is an Employee of the Company or a Subsidiary. WHEREAS, the Board of Directors of the Company (the "Board") on September 20, 1996, adopted the NRG Generating (U.S.) Inc. 1996 Stock Option Plan (the "Plan"); WHEREAS, the Plan provides for the granting of Nonqualified Stock Options by the Board to directors of the Company and to officers and key employees of the Company and its Subsidiaries to purchase shares of the Common Stock of the Company (the "Stock"), in accordance with the terms and provisions thereof; and WHEREAS, the Board considers Grantee to be a person who is eligible for a grant of Nonqualified Stock Options under the Plan, and has determined that it would be in the best interest of the Company to grant the Nonqualified Stock Options documented herein. NOW THEREFORE, the parties hereto, intending to be legally bound hereby, agree as follows: 1. Grant of Option. Subject to the terms and conditions hereinafter set forth, the Company, with the approval and at the direction of the Board, hereby grants to Grantee, as of the Date of Grant, an option to purchase up to _____ shares of Stock at a price of _____ per share. The shares of stock purchasable upon exercise of the Option are hereinafter sometimes referred to as the "Option Shares." The Option is intended by the parties hereto to be, and shall be treated as, a Nonqualified Stock Option which is not subject to the provisions of Code Section 422. 2. Installment Exercise. Subject to such further limitations as are provided herein, the Option shall become exercisable in three (3) installments, Grantee having the right hereunder to purchase from the Company the following number of Options Shares upon exercise of the Option, on and after the following dates, in cumulative fashion: (i) on and after the first anniversary of the Date of Grant up to one-third (ignoring fractional shares) of the total number of Option Shares; (ii) on and after the second anniversary of the Date of Grant, up to an additional one-third (ignoring fractional shares) of the total number of Option Shares; and (iii) on and after the third anniversary of the Date of Grant, the remaining Option Shares. 3. Termination of Option. (a) The Option and all rights hereunder with respect thereto, to the extent such rights shall not have been exercised, shall terminate and become null and void after the expiration of ten (10) years from the Date of Grant (the "Option Term"). (b) Upon the occurrence of Grantee's ceasing for any reason to be employed by the Company, the Option, to the extent not previously exercised, shall terminate and become null and void immediately upon the Separation Date, except in a case where the termination of Grantee's employment is by reason of retirement, Disability or death or otherwise as follows. Upon a termination of Grantee's employment by reason of Disability or death, all unexercised portions of the Option shall become immediately exercisable and the Option may be exercised during the period beginning upon such termination and ending one year after such date. Upon termination of Grantee's employment, the Option may be exercised during the three-month period following the date of retirement, but only to the extent that the Option was outstanding and exercisable on the date of such retirement. In no event, however, shall any such period extend beyond the Option Term. (c) In the event of Grantee's death, the Option may be exercised by Grantee's legal representative(s) as and to the extent that the Option would otherwise have been exercisable by Grantee, subject to the provisions of Section 3(b) hereof. (d) A transfer of Grantee's employment between the Company, its parents, subsidiaries or affiliates, shall not be deemed to be a termination of Grantee's employment. (e) Notwithstanding any other provisions set forth herein or in the Plan, if Grantee shall: (i) commit any act of malfeasance or wrongdoing affecting the Company, its Parents or Subsidiaries, (ii) breach any covenant not to compete, or employment contract, with the Company, its Parents or Subsidiaries, or (iii) engage in conduct that would warrant Grantee's discharge for cause (excluding general dissatisfaction with the performance of Grantee's duties, but including any act of disloyalty or any conduct clearly tending to bring discredit upon the Company, its Parents or Subsidiaries), any unexercised portion of the Option shall immediately terminate and be void. 4. Exercise of Options. (a) Grantee may exercise the Option with respect to all or any part of the number of Option Shares that are exercisable hereunder by giving the Secretary of the Company written notice of intent to exercise. The notice of exercise shall specify the number of Option Shares as to which the Option is to be exercised and date of exercise thereof, which date shall be at least five (5) days after the signing of such notice unless an earlier time shall have been mutually agreed upon. (b) Full payment (in U.S. dollars) by Grantee of the Option Price for Option Shares purchased shall be made on or before the exercise date specified in the notice of exercise in cash or as the Company may otherwise permit as further set forth in the Plan. On the exercise date specified in Grantee's notice or as soon thereafter as is practicable, the Company shall cause to be delivered to Grantee, a certificate or certificates for the Option Shares then being purchased (out of theretofore unissued Stock or reacquired Stock, as the Company may elect) upon full payment for such Option Shares. The obligation of the Company to deliver Stock shall, however, be subject to the condition that if at any time the Board shall determine in its discretion that the listing, registration or qualification of the Option or the Option Shares upon any securities exchange or under any state or federal law, or the consent or approval of any governmental regulatory body, is necessary or desirable as a condition of, or in connection with, the Option or the issuance or purchase of Stock thereunder, the Option may not be exercised in whole or in part unless such listing, registration, qualification, consent or approval shall have been effected or obtained free of any conditions not acceptable to the Board. (c) If Grantee fails to pay for any of the Option Shares specified in such notice or fails to accept delivery thereof, Grantee's right to purchase such Option Shares may be terminated by the Company or the exercise of the Option may be ignored, as the Board in its sole discretion may determine. The date specified in Grantee's notice as the date of exercise shall be deemed the date of exercise of the Option, provided that payment in full for the Option Shares to be purchased upon such exercise shall have been received by such date. 5. Adjustment of and Changes in Stock. In the event of a reorganization, recapitalization, change of shares, stock split, spin-off, stock dividend, reclassification, subdivision, or combination of shares, merger, consolidation, rights offering, or any other change in the corporate structure of shares of capital stock of the Company, the Board shall make such adjustment as it deems appropriate in the number and kind of shares of Stock subject to the Option or in such option price; provided, however, that no such adjustment shall give Grantee any additional benefits under the Option. 6. No Rights as Shareholders. Grantee shall have no rights as a shareholder with respect thereto unless and until certificates for shares of Common Stock are issued to him. 7. Non-Transferability of Option. During Grantee's lifetime, this Option shall be exercisable only by Grantee or his or her guardian or legal representative. 8. Employment Not Affected. The grant of the Option hereunder shall not be construed as conferring on Grantee any right to continued employment, and Grantee's employment may be terminated without regard to the effect which such action might have upon him as a holder of this Option. 9. Amendment of Option. The Option may be amended by the Board at any time (i) if the Board determines, in its sole discretion, that amendment is necessary or advisable in light of any addition to or change in the Code or in the regulations issued thereunder, or any federal or state securities law or other law of regulation, which change occurs after the Date of Grant and by its terms applies to the Option; or (ii) other than in the circumstances described in clause (i), with the consent of Grantee. 10. Notice. Any notice to the Company provided for in this instrument shall be addressed to it in care of its Secretary at its executive offices and any notice to Grantee shall be addressed to Grantee at the current address shown on the payroll records of the Employer. Any notice shall be deemed to be duly given if and when properly addressed and posted by registered or certified mail, postage prepaid. 11. Incorporation of Plan by Reference. The Option is granted pursuant to the Plan, the terms and definitions of which are incorporated herein by reference, and the Option shall in all respects by interpreted in accordance with the Plan. 12. Governing Law. To the extent that federal law shall not be held to have preempted local law, this Option shall be governed by the laws of the State of Delaware. If any provision of the Option shall be held invalid or unenforceable, the remaining provisions hereof shall continue in full force and effect. IN WITNESS WHEREOF, the Company has caused its duly authorized officer to execute this Grant of Nonqualified Stock Option, and Grantee has placed his or her signature hereon, effective as of the Date of Grant. NRG Generating (U.S.) Inc. By: Its: President and CEO: GRANTEE Signature____________________________ Name: Address: