Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | FPL Energy Illinois Wind LLC Hybrid | Grand Ridge Wind Energy Center |
|---|---|---|
| Capacity | 237.5 MW | 210 MW |
| Technology | Onshore Wind Turbine, Batteries | Onshore Wind Turbine |
| Operator | FPL Energy Illinois Wind LLC | Invenergy Services LLC |
| Operating units | 2 | 4 |
| Latest 12-month generation | 609.0 GWh | 485.5 GWh |
| Latest complete-year capacity factor | 30.3% (2025) | 26.3% (2024) |
| National technology rank | #197 of 1,362 | #212 of 1,362 |
| Latest EIA report | 2026-04 | 2024-12 |