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 * Winn Steve   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) EVP, Strategy & Nuclear Dev (Last) (First) (Middle) NRG ENERGY, INC., 211 CARNEGIE CENTER 3. Date of Earliest Transaction (Month/Day/Year) 03/10/2008 (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 03/10/2008   M(1)   8,750 A $ 23.975 34,912 D   Common Stock, par value .01 per share 03/10/2008   S(1)   50 D $ 41.96 34,862 D   Common Stock, par value .01 per share 03/10/2008   S(1)   600 D $ 41.975 34,262 D   Common Stock, par value .01 per share 03/10/2008   S(1)   2,100 D $ 41.98 32,162 D   Common Stock, par value .01 per share 03/10/2008   S(1)   900 D $ 41.99 31,262 D   Common Stock, par value .01 per share 03/10/2008   S(1)   100 D $ 41.995 31,162 D   Common Stock, par value .01 per share 03/10/2008   S(1)   400 D $ 42 30,762 D   Common Stock, par value .01 per share 03/10/2008   S(1)   200 D $ 42.04 30,562 D   Common Stock, par value .01 per share 03/10/2008   S(1)   200 D $ 42.06 30,362 D   Common Stock, par value .01 per share 03/10/2008   S(1)   300 D $ 42.07 30,062 D   Common Stock, par value .01 per share 03/10/2008   S(1)   3,900 D $ 42.25 26,162 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

Non-Qualified Stock Options

$ 23.975

03/10/2008

M(1)

8,750

(2)

01/03/2012

Common Stock, par value $.01 per share

8,750

$ 0

63,150

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Winn Steve NRG ENERGY, INC. 211 CARNEGIE CENTER PRINCETON, NJ 08540			EVP, Strategy & Nuclear Dev

Signatures

/s/Steven C. Winn		03/11/2008
**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)	Transaction made pursuant to 10b5-1 plan dated November 9, 2007.
(2)	Pursuant to the Grant Agreement by and between NRG Energy, Inc. and Mr. Winn, 33 1/3% of the Stock Options vested on January 3, 2007 and 33 1/3% vested on January 3, 2008. The remaining 33 1/3% will vest on January 3, 2009.

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