Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Delaware City Plant | Cumberland (NJ) |
|---|---|---|
| Capacity | 249 MW | 231.2 MW |
| Technology | Natural Gas Fired Combustion Turbine, Other Gases | Natural Gas Fired Combustion Turbine |
| Operator | Delaware City Refining Company LLC | Calpine New Jersey Generation LLC |
| Operating units | 6 | 2 |
| Latest 12-month generation | 1.03 TWh | 59.9 GWh |
| Latest complete-year capacity factor | 52.0% (2025) | 2.9% (2024) |
| National technology rank | #262 of 825 | #229 of 825 |
| Latest EIA report | 2026-06 | 2024-12 |