Spruce Mountain WInd
Oxford County, Maine · EIA plant ID 58026 · Operator: Spruce Mountain Wind LLC
Nameplate20MWSummer 20 MW
Generators1in service
Net generation53GWh12 mo to Dec 2025
Capacity factor30%wind units, summer MW
Heat rate—thermal plants only
First online2011
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), wind 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) |
|---|---|---|---|
| 2012 | 56.4 | 32.1% | — |
| 2013 | 59.4 | 33.9% | — |
| 2014 | 63.2 | 36.1% | — |
| 2015 | 66.3 | 37.9% | — |
| 2016 | 67.6 | 38.5% | — |
| 2017 | 62.3 | 35.6% | — |
| 2018 | 59.1 | 33.8% | — |
| 2019 | 60.2 | 34.4% | — |
| 2020 | 55.9 | 31.8% | — |
| 2021 | 57.7 | 32.9% | — |
| 2022 | 60 | 34.3% | — |
| 2023 | 52.9 | 30.2% | — |
| 2024 | 53.8 | 30.6% | — |
| 2025 | 52.6 | 30.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | WT | 20 | 20 | Dec 2011 | Operating | — | gamesa G90-2.0 |
Owner / operator
Operator: Spruce Mountain Wind LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Spruce Mountain Wind LLC | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Mainely Solar (Wyman Hill Solar LLC) | 4 MW | 11.8 km |
| NRS Bethel Solar, LLC | 3 MW | 12.7 km |
| Rumford Power LLC | 275 MW | 13.1 km |
| Rumford ESS | 5 MW | 13.4 km |
| Mead Rumford Cogen | retired | 14.6 km |
| ISM Solar Shepherd Acres | 4 MW | 14.9 km |