Big Muddy SolarUnder construction
Jackson County, Illinois · EIA plant ID 69629 · Operator: Big Muddy Solar Project, LLC
95 MW under construction (Solar Photovoltaic), first expected Oct 2026 · EIA-860M
Nameplate—MWSummer — MW
Generators0in service · 95 MW building
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—thermal plants only
First online—
Capacity factor by year
Net MWh ÷ (summer MW × hours), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
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.
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 |
|---|---|---|---|---|---|---|---|---|
| BIGM1 | Solar Photovoltaic | PV | 95 | 95 | planned Oct 2026 | Under construction | — | coming soon |
Owner / operator
Operator: Big Muddy Solar Project, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Murphysboro 1 | — | 8.6 km |
| Murphysboro 2 | — | 8.6 km |
| Gerstenschlager Family Solar 1, LLC (CSG) | 5 MW | 13 km |
| SIUC | 5 MW | 18.1 km |
| John A Logan College Solar | 1 MW | 22.4 km |
| Kimmel Road Solar, LLC | 50 MW | 22.5 km |