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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1. Name and Address of Reporting Person * Baliff Jonathan   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) Executive VP, Strategy (Last) (First) (Middle) NRG ENERGY, INC., 211 CARNEGIE CENTER 3. Date of Earliest Transaction (Month/Day/Year) 05/01/2008 (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 05/01/2008   A   4,000 (1) A $ 0 (2) 4,000 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

$ 42.67

05/01/2008

A

40,000

05/01/2009(3)

05/01/2014(4)

Common Stock, par value $.01 per share

40,000

$ 0

40,000

D

Performance Units

(5)

05/01/2008

A

15,400

05/01/2011

05/01/2011

Common Stock, par value $.01 per share

15,400

$ 0

15,400

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Baliff Jonathan NRG ENERGY, INC. 211 CARNEGIE CENTER PRINCETON, NJ 08540			Executive VP, Strategy

Signatures

/s/Jonathan Baliff		05/02/2008
**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)	Represents Restricted Stock Units issued to Mr. Baliff by NRG Energy, Inc. under NRG Energy, Inc.'s Long Term Incentive Plan.
(2)	Each Restricted Stock Unit is equivalent in value to one share of NRG Energy, Inc.'s Common Stock, par value $0.01. Mr. Baliff will receive from NRG Energy, Inc. one such share of Common Stock for each Restricted Stock Unit on May 1, 2011.
(3)	Pursuant to the Grant Agreement by and between NRG Energy, Inc. and Mr. Baliff, the Stock Option will vest and become exercisable as follows: 33 1/3% on May 1, 2009, 33 1/3% on May 1, 2010 and 33 1/3% on May 1, 2011.
(4)	Stock Options expire six years from the date of grant.
(5)	Mr. Baliff was issued 7,700 Performance Units by NRG Energy, Inc. under NRG Energy, Inc.'s Long Term Incentive Plan on May 1, 2008. Each Performance Unit will be paid out on May 1, 2011 if the average closing price of NRG Energy, Inc.'s Common Stock for the ten trading days prior to May 1, 2011(the "Measurement Price") is equal to or greater than $59.95 (the "Target Price"). The payout for each Performance Unit will be equal to: (i) one share of Common Stock, if the Measurement Price equals the Target Price; (ii) a prorated amount in between one and two shares of Common Stock, if the Measurement Price is greater than the Target Price but less than $70.11 (the "Maximum Price"); and (iii) two shares of Common Stock, if the Measurement Price is equal to or greater than the Maximum Price.

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