X0306 4 2018-08-01 0 0001013871 NRG ENERGY, INC. NRG 0001428578 Gutierrez Mauricio NRG ENERGY, INC. 804 CARNEGIE CENTER PRINCETON NJ 08540 1 1 0 0 President & Chief Exec Officer Common Stock, par value, $.01 per share 2018-08-01 4 A 0 789 A 508255 D Represents dividend equivalent rights accrued on the Reporting Person's deferred stock units, which become exercisable proportionately with the deferred 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 14,016 dividend equivalent rights. Reflects a de minimus adjustment to the number of dividend equivalent rights (DERs) by 1 DERs as a result of rounding fractional shares. /s/ Brian Curci, by Power of Attorney 2018-08-03