Parent companies
U.S. power plant parent companies
35 major parent companies rolled up from the utility and operator names reported to EIA, covering 2,381 plants and 634.10 GW of nameplate capacity. Each profile links to the underlying operating subsidiaries.
These are curated groupings of EIA-reported operators, assembled by GridAlmanac from public corporate-ownership records. For the full, uncurated list of every reported operator, see the operator directory.
Companies by capacity
| Company | Plants | Capacity |
|---|---|---|
| Duke Energy | 149 | 66.35 GW |
| Southern Company | 143 | 60.90 GW |
| NextEra Energy | 246 | 52.97 GW |
| Vistra | 46 | 38.44 GW |
| Entergy | 59 | 38.20 GW |
| Constellation Energy | 46 | 37.83 GW |
| Dominion Energy | 127 | 37.20 GW |
| Berkshire Hathaway Energy | 165 | 36.94 GW |
| American Electric Power | 93 | 30.23 GW |
| NRG Energy | 50 | 29.65 GW |
| Xcel Energy | 105 | 25.98 GW |
| AES Corporation | 295 | 17.30 GW |
| DTE Energy | 62 | 15.31 GW |
| Evergy | 41 | 13.76 GW |
| Ameren | 32 | 12.74 GW |
| Invenergy | 68 | 12.49 GW |
| Alliant Energy | 78 | 12.07 GW |
| CMS Energy | 43 | 11.63 GW |
| WEC Energy Group | 82 | 11.04 GW |
| Calpine | 33 | 10.62 GW |
| Avangrid | 78 | 9.15 GW |
| Talen Energy | 13 | 8.13 GW |
| Edison International | 74 | 7.03 GW |
| Tenaska | 6 | 6.06 GW |
| Engie | 53 | 5.87 GW |
| Public Service Enterprise Group | 4 | 4.51 GW |
| Terra-Gen | 59 | 4.38 GW |
| National Grid | 15 | 4.05 GW |
| FirstEnergy | 9 | 3.84 GW |
| Enel | 31 | 2.76 GW |
| Ørsted | 4 | 2.14 GW |
| Longroad Energy | 18 | 1.47 GW |
| Consolidated Edison | 9 | 1.10 GW |
| Clearway Energy | 9 | 1.04 GW |
| Brookfield Renewable | 36 | 923.7 MW |