Lone Star Solar
Calhoun County, South Carolina · EIA plant ID 62235 · Operator: Lone Star Solar
Nameplate132MWSummer 132 MW
Generators2in service
Net generation178GWh12 mo to Aug 2026
Capacity factor31%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 | 4.8 | 10.1% | — |
| 2025 | 164 | 28.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 49 | Solar Photovoltaic | PV | 66 | 66 | Dec 2024 | Operating | — | coming soon |
| 50 | Batteries | BA | 66 | 66 | Dec 2024 | Operating | — | coming soon |
Owner / operator
Operator: Lone Star Solar. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Lone Star Solar | 100.0% | 132 MW |
Nearby plants
Within 80 km.
| Cameron Solar | 20 MW | 10.4 km |
| Cameron Solar II | 4 MW | 10.6 km |
| St. Matthews Solar | 10 MW | 11.8 km |
| Shining Sun Solar | — | 13.3 km |
| Wateree | 772 MW | 19.8 km |
| Jamison Solar Farm | 1 MW | 20.1 km |