Walden Solar Maine V
Androscoggin County, Maine · EIA plant ID 68454 · Operator: Walden Solar Maine V LLC
Nameplate20MWSummer 20 MW
Generators1in service
Net generation36GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2024
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 | 0.1 | 0.5% | — |
| 2025 | 35.9 | 20.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| LEEDS | Solar Photovoltaic | PV | 20 | 20 | Dec 2024 | Operating | — | coming soon |
Owner / operator
Operator: Walden Solar Maine V LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Walden Solar Maine V LLC | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Dynamic - Leeds Solar (CSG) | 5 MW | 6.4 km |
| ReEnergy Livermore Falls | 40 MW | 10 km |
| Turner CSG LLC | 1 MW | 13.5 km |
| International Paper Livermore Hydro | 9 MW | 14.7 km |
| Livermore Falls CSG | 3 MW | 15.4 km |
| Otis Hydro | 10 MW | 15.8 km |