Tranche Update on NRG Energy, Inc.'s Equity Buyback Plan announced on December 6, 2021.

NRG Energy, Inc. specializes in producing and distributing electricity. Net sales break down by activity as follows: - production and sales of electricity (91.8%): as of the end of 2021, owned 25 power plants with a production capacity of 17,877 MW broken down into fossil and nuclear energy (17,658 MW) and renewable energy (219 MW); - other (8.2%).