Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Wolf Hollow II | Jack County |
|---|---|---|
| Capacity | 1,231.2 MW | 1,280 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | Constellation Power, Inc | Jack County Power, LLC |
| Operating units | 3 | 6 |
| Latest 12-month generation | 5.02 TWh | 4.07 TWh |
| Latest complete-year capacity factor | 50.4% (2025) | 55.8% (2025) |
| National technology rank | #53 of 538 | #43 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |