Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Gregory Power Plant | Freeport Energy |
|---|---|---|
| Capacity | 469.8 MW | 419.3 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | Gregory Power Partners LLC | Olin Blue Cube Operations |
| Operating units | 3 | 9 |
| Latest 12-month generation | 681.9 GWh | 1.89 TWh |
| Latest complete-year capacity factor | 15.5% (2025) | 46.6% (2025) |
| National technology rank | #315 of 538 | #139 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |