Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Callen David
 2. Date of Event Requiring Statement (Month/Day/Year)
03/03/2015		 3. Issuer Name and Ticker or Trading Symbol
NRG ENERGY, INC. [NRG]
(Last)
(First)
(Middle)
NRG ENERGY, INC., 804 CARNEGIE CENTER		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Accounting Offficer
 5. If Amendment, Date Original Filed(Month/Day/Year)
03/11/2015
(Street)

PRINCETON, NJ 08540		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $.01 per share 21,949 (1) (2)
D
 

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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Callen David
NRG ENERGY, INC.
804 CARNEGIE CENTER
PRINCETON, NJ 08540		       Chief Accounting Offficer  

Signatures

/s/ Brian Curci, by Power of Attorney 11/03/2016
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Includes 10,973 Restricted Stock Units ("RSUs") issued to Mr. Callen by NRG Energy, Inc. under NRG's Long Term Incentive Plan ("LTIP") and 362 dividend equivalent rights ("DERs"). Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01. Upon vesting of the RSUs, Mr. Callen will receive from NRG the following: (i) 2,300 shares issued on January 2, 2016; (ii) 3,279 shares issued on January 2, 2017; and (iii) 5,394 shares issued on January 2, 2018. Each DER will accrue on Mr. Callen's RSUs or MSUs and will become exercisable proportionately with the RSUs or MSUs to which they relate and can only be settled in NRG common stock. Each DER is the economic equivalent to one share of NRG common stock.
(2) The total reported in Column 2 has been adjusted to correct an understatement of total holdings by 500 shares of NRG Energy, Inc. Common Stock from the reporting person's original Form 3, and also from the Forms 4 filed by the reporting person after his original Form 3 was filed.

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