Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | FirstEnergy Fort Martin Power Station | Mountaineer |
|---|---|---|
| 1,152 MW | 1,300 MW | |
| Conventional Steam Coal | Conventional Steam Coal | |
| Monongahela Power Co | Appalachian Power Co | |
| 2 | 1 | |
| 5.43 TWh | 6.83 TWh | |
| 60.8% (2025) | 60.3% (2025) | |
| #67 of 206 | #57 of 206 | |
| 2026-06 | 2026-06 |