Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Perry | Calvert Cliffs Nuclear Power Plant |
|---|---|---|
| 1,311.6 MW | 1,850.4 MW | |
| Nuclear | Nuclear | |
| Energy Harbor Nuclear Generation LLC | Constellation Nuclear | |
| 1 | 2 | |
| 10.91 TWh | 14.93 TWh | |
| 81.4% (2025) | 91.3% (2025) | |
| #35 of 54 | #27 of 54 | |
| 2026-06 | 2026-06 |