Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Nine Mile Point Nuclear Station | Robert Moses Niagara |
|---|---|---|
| Capacity | 1,901.1 MW | 2,429.1 MW |
| Technology | Nuclear | Conventional Hydroelectric |
| Operator | Constellation Nuclear | New York Power Authority |
| Operating units | 2 | 13 |
| Latest 12-month generation | 15.56 TWh | 14.10 TWh |
| Latest complete-year capacity factor | 95.9% (2025) | 67.3% (2025) |
| National technology rank | #26 of 54 | #2 of 1,349 |
| Latest EIA report | 2026-06 | 2026-06 |