Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Nelson Energy Center | Elwood Energy LLC |
|---|---|---|
| Capacity | 627.5 MW | 576 MW |
| Technology | Natural Gas Fired Combined Cycle | Natural Gas Fired Combustion Turbine |
| Operator | Invenergy Services LLC | Elwood Energy LLC |
| Operating units | 4 | 9 |
| Latest 12-month generation | 3.20 TWh | 288.6 GWh |
| Latest complete-year capacity factor | 58.1% (2024) | 3.8% (2025) |
| National technology rank | #224 of 538 | #2 of 825 |
| Latest EIA report | 2024-12 | 2026-04 |