Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | R W Miller | Graham |
|---|---|---|
| Capacity | 537.6 MW | 634.7 MW |
| Technology | Natural Gas Steam Turbine, Natural Gas Fired Combustion Turbine | Natural Gas Steam Turbine |
| Operator | RW Miller Power LLC | Luminant Generation Company LLC |
| Operating units | 5 | 2 |
| Latest 12-month generation | 722.3 GWh | 1.04 TWh |
| Latest complete-year capacity factor | 10.1% (2024) | 18.7% (2024) |
| National technology rank | #72 of 257 | #45 of 257 |
| Latest EIA report | 2026-06 | 2024-12 |