FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Jacobs Christine A   2. Issuer Name and Ticker or Trading Symbol NRG ENERGY, INC. [NRG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr.Vice Pres, Plant Operations (Last) (First) (Middle) NRG ENERGY, INC., 211 CARNEGIE CENTER 3. Date of Earliest Transaction (Month/Day/Year) 09/07/2007 (Street) PRINCETON, NJ 08540 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock, par value .01 per share 09/07/2007   F   2,952 (1) (2) D (2) 17,802 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Jacobs Christine A NRG ENERGY, INC. 211 CARNEGIE CENTER PRINCETON, NJ 08540			Sr.Vice Pres, Plant Operations

Signatures

Christine Jacobs		09/12/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	On May 2, 2007, NRG Energy, Inc. announced a 2-for-1 stock split, in the form of a stock dividend paid on May 31, 2007 to all holders of record of Common Stock on May 22, 2007. The Company's Common Stock began trading on a split-adjusted basis on June 1, 2007.
(2)	On September 7, 2004, Ms. Jacobs was issued 5,000 Restricted Stock Units ("RSU's") by NRG Energy, Inc. pursuant to the Restricted Stock Unit Agreement by and between NRG Energy, Inc. and Ms. Jacobs. Each RSU is equivalent in value to one share of NRG's Common Stock, par value $0.01. On September 7, 2007 the RSU's became unrestricted. Ms. Jacobs elected to satisfy her tax withholding obligation upon the exchange of common stock for RSU's by surrendering a number of shares of common stock having a value on the date of the exchange equal to the tax withholding obligation. This form in being filed to reflect the surrender of 2,952 shares of common stock to satisfy her tax withholding obligation.

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