Troy Solar
Spencer County, Indiana · EIA plant ID 63929 · Operator: Southern Indiana Gas & Elec Co
Nameplate50MWSummer 50 MW
Generators1in service
Net generation94GWh12 mo to Aug 2026
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2021 | 85 | 25.6% | — |
| 2022 | 103.4 | 23.4% | — |
| 2023 | 93.5 | 21.2% | — |
| 2024 | 89.9 | 20.3% | — |
| 2025 | 94.8 | 21.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| TROY1 | Solar Photovoltaic | PV | 50.4 | 50.4 | Apr 2021 | Operating | — | coming soon |
Owner / operator
Operator: Southern Indiana Gas & Elec Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Southern Indiana Gas & Elec Co | 100.0% | 50 MW |
Nearby plants
Within 80 km.
| Tell City Solar Park | 3 MW | 7.3 km |
| IMPA Tell City Solar Park | 1 MW | 9 km |
| Cannelton Hydroelectric Plant | 88 MW | 14.9 km |
| Kentucky Mills | 88 MW | 16.3 km |
| Rockport | 2,600 MW | 23.7 km |
| New Haven Solar RES | 1 MW | 26.3 km |