Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Handley | Mountain Creek |
|---|---|---|
| Capacity | 1,314.8 MW | 852.2 MW |
| Technology | Natural Gas Steam Turbine | Natural Gas Steam Turbine |
| Operator | Constellation Power, Inc | Mountain Creek Power, LLC |
| Operating units | 5 | 5 |
| Latest 12-month generation | 864.9 GWh | 479.5 GWh |
| Latest complete-year capacity factor | 7.8% (2025) | 6.4% (2024) |
| National technology rank | #12 of 257 | #28 of 257 |
| Latest EIA report | 2026-06 | 2024-12 |