Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Delaware City Plant | Garrison Energy Center LLC |
|---|---|---|
| Capacity | 249 MW | 361 MW |
| Technology | Natural Gas Fired Combustion Turbine, Other Gases | Natural Gas Fired Combined Cycle |
| Operator | Delaware City Refining Company LLC | Garrison Energy Center LLC |
| Operating units | 6 | 2 |
| Latest 12-month generation | 1.12 TWh | 944.1 GWh |
| Latest complete-year capacity factor | 52.0% (2025) | 27.1% (2025) |
| National technology rank | #262 of 825 | #336 of 538 |
| Latest EIA report | 2026-04 | 2026-04 |