Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Jack County | Lamar Power Project |
|---|---|---|
| Capacity | 1,280 MW | 1,112.6 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | Jack County Power, LLC | LaFrontera Holdings LLC |
| Operating units | 6 | 6 |
| Latest 12-month generation | 4.07 TWh | 7.23 TWh |
| Latest complete-year capacity factor | 55.8% (2025) | 70.4% (2025) |
| National technology rank | #43 of 538 | #77 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |