Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Frontera Energy Center | Arthur Von Rosenberg |
|---|---|---|
| Capacity | 529 MW | 575 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle |
| Operator | Frontera Generation Limited Partnership | City of San Antonio - (TX) |
| Operating units | 3 | 3 |
| Latest 12-month generation | 1.91 TWh | 3.44 TWh |
| Latest complete-year capacity factor | 42.3% (2025) | 71.7% (2025) |
| National technology rank | #300 of 538 | #272 of 538 |
| Latest EIA report | 2026-06 | 2026-06 |