Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Sim Gideon | Thomas C Ferguson |
|---|---|---|
| Capacity | 623 MW | 574.6 MW |
| Technology | Natural Gas Steam Turbine | Natural Gas Fired Combined Cycle |
| Operator | Lower Colorado River Authority | Lower Colorado River Authority |
| Operating units | 3 | 4 |
| Latest 12-month generation | 1.04 TWh | 3.74 TWh |
| Latest complete-year capacity factor | 19.1% (2024) | 72.1% (2025) |
| National technology rank | #48 of 257 | #273 of 538 |
| Latest EIA report | 2024-12 | 2026-06 |