X0303 4 2010-06-01 0 0001013871 NRG ENERGY, INC. NRG 0001079395 COSGROVE HOWARD E NRG ENERGY, INC. 211 CARNEGIE CENTER PRINCETON NJ 08540 1 0 0 0 Common Stock, par value .01 per share 2010-06-01 4 A 0 7327 A 73020 D Common Stock, par value .01 per share 20000 I By wife Represents Deferred Stock Units issued to Mr. Cosgrove by NRG Energy, Inc. under NRG Energy, Inc.'s Amended and Restated Long Term Incentive Plan. Each Deferred Stock Unit is equivalent in value to one share of NRG Energy, Inc.'s Common Stock, par value $0.01. Mr. Cosgrove will receive from NRG Energy, Inc. one such share of Common Stock for each Deferred Stock Unit he owns upon termination of his service on NRG Energy, Inc.'s Board of Directors. /s/ Brian Curci, under Power of Attorney 2010-06-03