Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Marble River Wind Farm | Maple Ridge Wind Farm |
|---|---|---|
| Capacity | 215.3 MW | 321.2 MW |
| Technology | Onshore Wind Turbine | Onshore Wind Turbine |
| Operator | Marble River, LLC | Flat Rock Windpower, LLC |
| Operating units | 1 | 4 |
| Latest 12-month generation | 469.5 GWh | 607.1 GWh |
| Latest complete-year capacity factor | 26.3% (2025) | 24.8% (2025) |
| National technology rank | #201 of 1,362 | #47 of 1,362 |
| Latest EIA report | 2026-06 | 2026-06 |