Exhibit

We consent to the incorporation by reference in the registration statements No. 333‑197882 on Form S-8, No. 333-185501 on Form S-8, No. 333-182379 on Form S-8, No. 333-171318 on Form S-8, No. 333-151992 on Form S-8, No. 333-135973 on Form S-8, No. 333-114007 on Form S-8, and No. 333-217595 on Form S-8 of NRG Energy, Inc. of our reports dated March 1, 2018, with respect to the consolidated balance sheets of NRG Energy, Inc. and subsidiaries as of December 31, 2017 and 2016, and the related consolidated statements of operations, comprehensive (loss)/income, stockholders’ equity, and cash flows for each of the years in the three year period ended December 31, 2017, and the related notes and financial statement schedule II, and the effectiveness of internal control over financial reporting as of December 31, 2017, which reports appear in the December 31, 2017 annual report on Form 10‑K of NRG Energy, Inc.