Farmington Solar
Franklin County, Maine · EIA plant ID 64337 · Operator: Farmington Solar, LLC
Nameplate77MWSummer 77 MW
Generators1in service
Net generation123GWh12 mo to Aug 2026
Capacity factor18%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 | 16.3 | 9.6% | — |
| 2022 | 133.9 | 19.9% | — |
| 2023 | 121.7 | 18.1% | — |
| 2024 | 129.6 | 19.2% | — |
| 2025 | 124.1 | 18.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| FNS | Solar Photovoltaic | PV | 77 | 77 | Oct 2021 | Operating | — | coming soon |
Owner / operator
Operator: Farmington Solar, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Farmington Solar, LLC | 100.0% | 77 MW |
Nearby plants
Within 80 km.
| Farmington | 5 MW | 4 km |
| Pleasant Street | 3 MW | 8 km |
| 15 Glen Harris RD | 4 MW | 9.2 km |
| USS Weld Solar LLC | 1 MW | 16.6 km |
| International Paper Jay Hydro | 3 MW | 19.3 km |
| Androscoggin Mill | retired | 19.8 km |