Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Helena Wind | Chapman Ranch Wind I |
|---|---|---|
| Capacity | 268.2 MW | 236 MW |
| Technology | Onshore Wind Turbine | Onshore Wind Turbine |
| Operator | Helena Wind, LLC | Chapman Ranch Wind LLC |
| Operating units | 1 | 1 |
| Latest 12-month generation | 784.3 GWh | 518.0 GWh |
| Latest complete-year capacity factor | 31.9% (2025) | 25.0% (2024) |
| National technology rank | #121 of 1,362 | #172 of 1,362 |
| Latest EIA report | 2026-06 | 2024-12 |