Wolf Run Solar
Morgan County, Illinois · EIA plant ID 68056 · Operator: Wolf Run Solar LLC
Nameplate140MWSummer 140 MW
Generators1in service
Net generation306GWh12 mo to Aug 2026
Capacity factor25%solar units, summer MW
Heat rate—thermal plants only
First online2024
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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) |
|---|---|---|---|
| 2024 | 49.8 | 24.3% | — |
| 2025 | 314.5 | 25.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN01 | Solar Photovoltaic | PV | 140 | 140 | Nov 2024 | Operating | — | coming soon |
Owner / operator
Operator: Wolf Run Solar LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wolf Run Solar LLC | 100.0% | 140 MW |
Nearby plants
Within 80 km.
| Prairie Creek Solar | 30 MW | 11.6 km |
| Peony | 5 MW | 14.1 km |
| Morgan Solar 1b CSG | 2 MW | 17 km |
| Morgan Solar 1 CSG | 2 MW | 17.1 km |
| USS Clear Creek Solar | 3 MW | 21.6 km |
| USS Beard Solar | 4 MW | 21.9 km |