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