Fourmile Ridge
Garrett County, Maryland · EIA plant ID 58904 · Operator: Fourmile Wind Energy, LLC
Nameplate40MWSummer 40 MW
Generators1in service
Net generation112GWh12 mo to Aug 2026
Capacity factor32%wind units, summer MW
Heat rate—thermal plants only
First online2014
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), 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) |
|---|---|---|---|
| 2015 | 126.8 | 36.2% | — |
| 2016 | 129.2 | 36.8% | — |
| 2017 | 132 | 37.7% | — |
| 2018 | 130.5 | 37.2% | — |
| 2019 | 125.5 | 35.8% | — |
| 2020 | 126.4 | 36.0% | — |
| 2021 | 123.3 | 35.2% | — |
| 2022 | 122.9 | 35.1% | — |
| 2023 | 111.4 | 31.8% | — |
| 2024 | 113.1 | 32.2% | — |
| 2025 | 119.6 | 34.1% | — |
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 | 40 | 40 | Dec 2014 | Operating | — | nordex N100/2500 |
Owner / operator
Operator: Fourmile Wind Energy, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Fourmile Wind Energy, LLC | 100.0% | 40 MW |
Nearby plants
Within 80 km.
| Jade Meadow LLC | 20 MW | 7 km |
| Dans Mountain | 55 MW | 11.3 km |
| Meyersdale Windpower | 30 MW | 16.7 km |
| Twin Ridges Wind Farm | 139 MW | 17.7 km |
| Meyersdale Battery | 18 MW | 17.7 km |
| Ringer Hill Wind Farm, LLC | 40 MW | 19 km |