Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Seneca Generation LLC | Smith Mountain |
|---|---|---|
| 437.9 MW | 547.5 MW | |
| Hydroelectric Pumped Storage, Conventional Hydroelectric | Hydroelectric Pumped Storage, Conventional Hydroelectric | |
| Seneca Generation LLC | Appalachian Power Co | |
| 3 | 5 | |
| -327.4 GWh | -124.9 GWh | |
| — | 3.7% (2023) | |
| #16 of 39 | #44 of 1,349 | |
| 2026-06 | 2026-06 |