St. Joseph Solar
St. Joseph County, Indiana · EIA plant ID 63801 · Operator: Indiana Michigan Power Co
Nameplate20MWSummer 20 MW
Generators1in service
Net generation37GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2021 | 21.2 | 14.4% | — |
| 2022 | 23.5 | 13.4% | — |
| 2023 | 32.4 | 18.5% | — |
| 2024 | 37.8 | 21.5% | — |
| 2025 | 36.9 | 21.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 20 | 20 | Mar 2021 | Operating | — | coming soon |
Owner / operator
Operator: Indiana Michigan Power Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Indiana Michigan Power Co | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Twin Branch PV | 3 MW | 4.7 km |
| Twin Branch | 5 MW | 7.6 km |
| University of Notre Dame | 40 MW | 10.9 km |
| Elkhart | 3 MW | 12.6 km |
| Notre Dame Hydro | 3 MW | 12.9 km |
| French Paper Hydro | 1 MW | 16 km |