Ownership Submission
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 *
Gutierrez Mauricio
  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)
Exec VP & Chief Operating Ofc
(Last)
(First)
(Middle)
NRG ENERGY, INC., 211 CARNEGIE CENTER
3. Date of Earliest Transaction (Month/Day/Year)
01/03/2014
(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 01/03/2014   M   25,092 A (1) 180,670 D  
Common Stock, par value .01 per share 01/03/2014   F   8,776 D (2) 171,894 D  
Common Stock, par value .01 per share 01/03/2014   F   7,177 D (3) 164,717 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Performance Units (1) 01/03/2014   M     16,400 01/03/2014 01/03/2014 Common Stock, par value .01 per share 32,800 (1) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Gutierrez Mauricio
NRG ENERGY, INC.
211 CARNEGIE CENTER
PRINCETON, NJ 08540
      Exec VP & Chief Operating Ofc  

Signatures

 /s/ Brian Curci, under Power of Attorney   01/07/2014
**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) The Reporting Person was issued 16,400 Performance Units ("PU") by NRG Energy, Inc. ("NRG") under NRG's Long Term Incentive Plan on January 3, 2011. Each PU was subject to pay out if the average of the closing price of NRG's Common Stock on January 3, 2014 and the nineteen preceding tracking days (the "Measurement Price") is equal to or greater than $24.57 (the "Threshold Price"). The payout for each PU was equal to a prorated amount (i) in between one-half and one share of common stock if the Measurement Price equaled or exceeded the Threshold Price but less than $26.66 (the "Target Price"); (ii) equal to a pro-rated amount in between one and two shares of common stock if the Measurement Price is equal to the Target Price but less than $31.17 (the "Maximum Price"); and (iii)equal to two shares of common stock if the Measurement Price is equal to or greater than the Maximum Price. On January 3, 2014 the Measurement Price was greater than the Target Price.
(2) Pursuant to NRG's Long Term Incentive Plan, the Reporting Person elected to satisfy the tax withholding obligation upon the exchange of common stock for PUs 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 reflects the surrender of 8,776 shares of common stock to satisfy the Reporting Person's tax obligation.
(3) On January 3, 2011, the Reporting Person was issued 16,600 Restricted Stock Units ("RSUs") by NRG under NRG's Long Term Incentive Plan (the "LTIP"). Each RSU is equivalent in value to one share of NRG's Common Stock, par value $0.01. On January 3, 2014, all of the originally granted RSUs vested. Pursuant to the LTIP, the Reporting Person elected to satisfy the tax withholding obligation upon the exchange of common stock for RSUs 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 reflects the surrender of 7,177 shares of common stock to satisfy the reporting person's tax withholding obligation.

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