Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | South Plains II | Wake Wind Energy Center |
|---|---|---|
| Capacity | 300 MW | 257.3 MW |
| Technology | Onshore Wind Turbine | Onshore Wind Turbine |
| Operator | Onward Energy | Southern Power Co |
| Operating units | 1 | 1 |
| Latest 12-month generation | 1.05 TWh | 883.8 GWh |
| Latest complete-year capacity factor | 38.3% (2025) | 39.1% (2024) |
| National technology rank | #71 of 1,362 | #129 of 1,362 |
| Latest EIA report | 2026-06 | 2024-12 |