June 27, 2019

Securities and Exchange Commission

Division of Corporation Finance

100 F Street N.E.

Washington, D.C. 20549

Attn: Robert Babula, Staff Accountant

Re:     NRG Energy, Inc.

Form 10-K for the Fiscal Year Ended December 31, 2018

Filed February 28, 2019

Form 10-Q for the Quarterly Period Ended March 31, 2019

Filed May 2, 2019

File No. 001-15891

Dear Mr. Babula:

We are in receipt of the letter dated June 25, 2019 (the “Comment Letter”) from the U.S. Securities and Exchange Commission (the “Commission”) regarding the above-referenced filings of NRG Energy, Inc. (the “Company”). This letter hereby requests that the Commission provide an extension of the deadline for the Company’s response until July 11, 2019 to ensure the Company has adequate time and resources to prepare its response. The Company intends to submit its response to the Comment Letter on such date.

Please contact David Callen, Senior Vice President and Chief Accounting Officer, at (609) 524-4734, or me at (609) 524-5171 with any questions you may have.

Sincerely,

/s/ Brian E. Curci

Brian E. Curci

Senior Vice President and General Counsel

Cc:    Kirkland B. Andrews, EVP and Chief Financial Officer

David Callen, SVP and Chief Accounting Officer

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