X0306 4 2020-05-01 0 0001013871 NRG ENERGY, INC. NRG 0001662519 Killinger Elizabeth R NRG ENERGY, INC. 804 CARNEGIE CENTER PRINCETON NJ 08540 0 1 0 0 EVP & President, NRG Retail Common Stock, par value, $.01 per share 2020-05-01 4 A 0 183 A 129275 D Represents dividend equivalent rights accrued on the Reporting Person's restricted stock units, which become exercisable proportionately with the restricted 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. Includes 392 dividend equivalent rights and 106 shares acquired under NRG Energy, Inc.'s Employee Stock Purchase Plan since the Reporting Person's last filing. /s/ Christine Zoino, by Power of Attorney 2020-05-05