Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Nine Mile Point Nuclear Station | James A Fitzpatrick |
|---|---|---|
| Capacity | 1,901.1 MW | 883.3 MW |
| Technology | Nuclear | Nuclear |
| Operator | Constellation Nuclear | Constellation Nuclear |
| Operating units | 2 | 1 |
| Latest 12-month generation | 15.56 TWh | 7.37 TWh |
| Latest complete-year capacity factor | 95.9% (2025) | 95.8% (2025) |
| National technology rank | #26 of 54 | #50 of 54 |
| Latest EIA report | 2026-06 | 2026-06 |