Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Tenaska Gateway Generating Station | Tenaska Frontier Generation Station |
|---|---|---|
| Capacity | 939.6 MW | 939.7 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | Tenaska Gateway Partners Ltd | Tenaska Frontier Partners Ltd |
| Operating units | 4 | 4 |
| Latest 12-month generation | 4.33 TWh | 4.68 TWh |
| Latest complete-year capacity factor | 57.2% (2025) | 42.6% (2025) |
| National technology rank | #104 of 538 | #103 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |