SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* Killinger Elizabeth R (Last) (First) (Middle) 804 CARNEGIE CENTER (Street) PRINCETON NJ 08540 (City) (State) (Zip)	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, Retail
	3. Date of Earliest Transaction (Month/Day/Year) 12/31/2020
	4. If Amendment, Date of 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

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	12/31/2020		M		4,278	A	$19.83	134,037	D
Common Stock, par value $.01 per share	12/31/2020		S		4,278	D	$36.59(1)	129,759	D
Common Stock, par value $.01 per share	01/02/2021		M		25,046	A	$0(2)	154,805	D
Common Stock, par value $.01 per share	01/02/2021		A		9,913(3)	A	$0.0000(4)	164,718	D
Common Stock, par value $.01 per share	01/02/2021		M		1,082	A	$0(5)	165,800	D
Common Stock, par value $.01 per share	01/02/2021		F		789	D	$0.0000(6)	165,011(7)	D
Common Stock, par value $.01 per share	01/02/2021		F		805	D	$0.0000(8)	164,206(9)	D
Common Stock, par value $.01 per share	01/02/2021		F		1,226	D	$0.0000(10)	162,980(11)	D
Common Stock, par value $.01 per share	01/02/2021		F		7,909	D	$0.0000(12)	155,071	D
Common Stock, par value $.01 per share	01/04/2021		G		231	D	$0.0000	154,840	D
Common Stock, par value $.01 per share	01/04/2021		G		245	D	$0.0000	154,595	D
Common Stock, par value $.01 per share	01/04/2021		S		31,543	D	$36.91(13)	123,052	D

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 Securities Underlying Derivative Security (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: 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
Employee Stock Option (right to buy)	$19.83	12/31/2020		M			4,278	01/03/2011	01/03/2021	Common Stock, par value $.01 per share	4,278	$0.0000	0.0000	D
Dividend Equivalent Rights	(5)	01/02/2021		M			1,082	01/02/2021	01/02/2021	Common Stock, par value $.01 per share	1,082	$0.0000	0.0000	D
Relative Performance Stock Units	(14)	01/02/2021		M			25,046	01/02/2021	01/02/2021	Common Stock, par value $.01 per share	25,046	$0.0000	0.0000	D
Relative Performance Stock Units	(15)	01/02/2021		A		15,271(16)		01/02/2024	01/02/2024	Common Stock, par value $.01 per share	15,271(17)	$0.0000	15,271	D

Explanation of Responses:

1. This transaction was executed in multiple trades at prices ranging from $36.36 to $36.85. The price reported reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

2. The Reporting Person was issued 19,878 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 39,756 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 19,878 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 4,970 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person wouldnot have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 25,406 shares.

3. Represents Restricted Stock Units issued to the Reporting Person under NRG Energy, Inc.'s Amended and Restated Long-Term Incentive Plan ("LTIP").

4. Each RSU is equivalent in value to one share of NRG's Common Stock, par value $.01 per share. The Reporting Person will receive from NRG one such share of Common Stock for each RSU that will vest ratably over a three year period beginning on the first anniversary of the date of grant.

5. In connection with the vesting of the RPSUs described above, an incremental 1,082 DERs vested. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units to which they relate and may only be settled in NRG common stock. Each dividend equivalent right is the economic equivalent of one share of NRG common stock.

6. On January 2, 2019, the Reporting Person was issued 9,483 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalentin value to one share of NRG's common stock, par value $.01. On January 2, 2021 3,158 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 789 shares of common stock to satisfy the grantee's tax withholding obligation.

7. In connection with the vesting of the RSUs described above, 123 DERs vested, resulting in the Reporting Person holding 644 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

8. On January 2, 2020, the Reporting Person was issued 9,594 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 3,194 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 805 shares of common stock to satisfy the grantee's tax withholding obligation.

9. In connection with the vesting of the RSUs described above, 114 DERs vested, resulting in the Reporting Person holding 530 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

10. On January 2, 2018, the Reporting Person was issued 12,118 Restricted Stock Units ("RSUs") by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each RSU is equivalent in value to one share of NRG's common stock, par value $.01. On January 2, 2021 4,048 shares vested. The Reporting Person elected to satisfy their tax obligation upon the exchange of common stock for RSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 1,226 shares of common stock to satisfy the grantee's tax withholding obligation.

11. In connection with the vesting of the RSUs described above, 174 DERs vested, resulting in the Reporting Person holding 356 dividend equivalent rights in the aggregate. Dividend equivalent rights accrue on the Reporting Person's restricted stock units or relative performance stock units, which become exercisable proportionately with the restricted stock units or relative performance stock units.

12. The Reporting Person elected to satisfy their tax withholding obligation upon the exchange of common stock for RPSUs having a value on the date of the exchange equal to the withholding obligation. This form reflects the surrender of 7,909 shares of common stock to satisfy the grantee's tax withholding obligation

13. This transaction was executed in multiple trades ranging from $36.28 to $37.75. The price reported reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

14. The Reporting Person was issued 19,878 RPSUs by NRG under the LTIP on January 2, 2018 that vested on January 2, 2021. On the vesting date the Reporting Person was entitled to receive a maximum of 39,756 shares of Common Stock if the company achieved 100% increase in total shareholder return since the grant date (the "Maximum"), 19,878 shares of Common Stock if there is no change in total shareholder return since the grant date (the "Target") or 4,970 shares of Common Stock if there is a 25% decrease in total shareholder return since the grant date (the "Threshold"). The Reporting Person would not have received any shares of Common Stock if total shareholder return had decreased by more than 25% since the grant date. The number of shares that the Reporting Person could have received in interpolated for total shareholder return fall between Threshold, Target and Maximum levels. On January 2, 2021 the reporting person vested in 25,046 shares.

15. The Reporting Person was issued 15,271 Relative Performance Stock Units ("RPSUs") by NRG Energy, Inc. under the LTIP on January 2, 2021. The RPSUs will convert to shares of NRG Common Stockon January 2, 2024 only in the event the Company has achieved a certain level of total shareholder return ("TSR") relative to the Peer Group (defined below) over a three-year performance period. The numberof shares of Common Stock that the Reporting Person may receive is interpolated for TSR falling between Threshold, Target, and Maximum levels as described below.

16. Reporting Person will receive(i) a maximum of 30,542 shares of Common Stock if Company's TSR is ranked at or above the 75th percentile relative to a peer group of companies approved by the Company's Compensation Committee (the "Peer Group") for the performance period (the "Maximum"); (ii) 15,271 shares of Common Stock if Company's TSR is ranked at the 55th percentile relative to the Peer Group for the performance period (the "Target"); provided, however, if TSR is less than negative fifteen percent (-15%), the Company's TSR must be ranked at the 65th percentile relative to the Peer Group for the performance period to receive the Target award; or (iii) 3,817 shares of Common Stock if Company's TSR is ranked at the 25th percentile relative to the Peer Group for the performance period(the "Threshold"). The Reporting Person will not receive any shares of Common Stock if Company's TSR is below the 25th percentile relative to the Peer Group for the performance period.

17. The Maximum award that the Reporting Person will receive shall not exceed six (6) times the fair market value of the Target award, determined as of the date of grant.

	Christine Zoino, by Power of Attorney	01/06/2021
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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