Martin County Solar Project, LLC
Martin County, Kentucky · EIA plant ID 66646 · Operator: Martin County Solar Project, LLC
Nameplate111MWSummer 111 MW
Generators1in service
Net generation219GWh12 mo to Aug 2026
Capacity factor23%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 | 7.1 | 8.6% | — |
| 2025 | 210.9 | 21.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| USMTC | Solar Photovoltaic | PV | 111 | 111 | Dec 2024 | Operating | — | coming soon |
Owner / operator
Operator: Martin County Solar Project, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Martin County Solar Project, LLC | 100.0% | 111 MW |
Nearby plants
Within 80 km.
| Big Sandy | 281 MW | 46.8 km |
| Riverside Generating LLC | 1,150 MW | 48.8 km |
| Big Sandy Peaker Plant | 353 MW | 65.2 km |
| Ceredo Generating Station | 519 MW | 67.2 km |
| Starfire Mountain Solar | — | 69.2 km |
| AEP Milton NaS | retired | 73 km |