Spring Prairie Solar WI, LLC
Walworth County, Wisconsin · EIA plant ID 67733 · Operator: Wisconsin Electric Power Co
Nameplate8MWSummer 8 MW
Generators1in service
Net generation13GWh12 mo to Dec 2025
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2023
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2023 | 0 | 0.0% | — |
| 2024 | 4 | 6.0% | — |
| 2025 | 12.8 | 19.5% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 20231 | Solar Photovoltaic | PV | 7.5 | 7.5 | Dec 2023 | Operating | — | coming soon |
Owner / operator
Operator: Wisconsin Electric Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wisconsin Electric Power Co | 100.0% | 8 MW |
Nearby plants
Within 80 km.
| Tichigan Solar WI, LLC | — | 15.5 km |
| LaFayette Solar WI, LLC | 6 MW | 16.1 km |
| Silver Lake Solar WI, LLC | 8 MW | 16.8 km |
| Honey Creek Solar WI, LLC | — | 18.2 km |
| La Grange Solar Partners, LLC | 6 MW | 23.9 km |
| N Solon Road (North) | 2 MW | 24.6 km |