UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended: June 30, 2019 ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-15891 NRG Energy, Inc. (Exact name of registrant as specified in its charter) (Address of principal executive offices) | (State or other jurisdiction | | --- | | of incorporat ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period Ended: March 31, 2019 o Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File Number: 001-15891 NRG Energy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 804 Carnegie Center, Pri ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K Commission file No. 001-15891 NRG Energy, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 41-1724239 (I.R.S. Employer Identification No.) 804 Carnegie Center, Princeton, New Jersey (Address of principal executive offices) (609) 524-4500 (Registrant's telephone number, including area code) Securities registered pursuant to Section 12(b) of the A ...