FirstEnergy Nuclear Operating Company operates 3 power plants across 1 country, with a combined installed capacity of 4,084 MW.
| Plant | Fuel | Country | MW | t CO₂/yr |
|---|---|---|---|---|
| Beaver Valley | Nuclear | United States of America | 1,847 | — |
| Perry | Nuclear | United States of America | 1,312 | — |
| Davis Besse | Nuclear | United States of America | 925 | — |
Ownership & capacity: WRI Global Power Plant Database (CC BY 4.0). Measured CO₂ where reported to EPA/EU ETS/Climate TRACE.