Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Freestone Energy Center | Thad Hill Energy Center |
|---|---|---|
| Capacity | 1,036 MW | 807 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | Freestone Power Generation LLC | Thad Hill Energy Center, LLC |
| Operating units | 6 | 5 |
| Latest 12-month generation | 6.02 TWh | 3.97 TWh |
| Latest complete-year capacity factor | 71.4% (2025) | 58.2% (2025) |
| National technology rank | #89 of 538 | #141 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |