Additional Proxy Soliciting Materials (definitive) (defa14a)

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No. )

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NRG Energy, Inc.
(Name of Registrant as Specified In Its Charter)


(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote *** Important Notice Regarding the Availability of Proxy Materials for the Stockholder Meeting to Be Held on April 26, 2018. NRG ENERGY, INC. You are receiving this communication because you hold shares in the company named above. This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of NRG ENERGY, INC. C/O OFFICE OF GENERAL COUNSEL 804 CARNEGIE CENTER PRINCETON, NJ 08540-6213 the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side). We encourage you to access and review all of the important information contained in the proxy materials before voting. proxy materials and voting instructions. E39865-P02671 See the reverse side of this notice to obtain Meeting Information Meeting Type:Annual Meeting For holders as of:March 1, 2018 Date: April 26, 2018Time: 9:00 AM EDT Location: Hyatt Regency Princeton 102 Carnegie Center Princeton, NJ 08540

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The Board of Directors recommends a vote FOR the nominees listed under Proposal 1 and FOR Proposals 2 and 3. 1. Election of Directors Nominees: 2. To approve, on a non-binding advisory basis, the compensation of the Company's named executive officers. To ratify the appointment of KPMG LLP as the Company's independent registered public accounting firm for fiscal year 2018. 1a. E. Spencer Abraham 3. 1b. Kirbyjon H. Caldwell The Board of Directors recommends you vote AGAINST Proposal 4: 1c. Matthew Carter, Jr. 1d. Lawrence S. Coben 4. To vote on a stockholder proposal regarding disclosure of political expenditures, if properly presented at the meeting. 1e. Heather Cox NOTE: Such other business as may properly come before the meeting or any adjournment thereof. 1f. Terry G. Dallas 1g. Mauricio Gutierrez 1h. William E. Hantke 1i. Paul W. Hobby 1j. Anne C. Schaumburg 1k. Thomas H. Weidemeyer 1l. C. John Wilder E39867-P02671 Voting Items