Maple Ridge Wind Farm
Lewis County, New York · EIA plant ID 56290 · Operator: Flat Rock Windpower, LLC
Nameplate321MWSummer 322 MW
Generators4in service
Net generation613GWh12 mo to Aug 2026
Capacity factor22%wind units, summer MW
Heat rate—thermal plants only
First online2005
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) |
|---|---|---|---|
| 2005 | 2.6 | 2.5% | — |
| 2006 | 543.9 | 27.6% | — |
| 2007 | 707.8 | 25.1% | — |
| 2008 | 751.4 | 26.6% | — |
| 2009 | 718.7 | 25.5% | — |
| 2011 | 750.2 | 26.6% | — |
| 2012 | 723.9 | 25.6% | — |
| 2013 | 751.4 | 26.6% | — |
| 2014 | 813.1 | 28.8% | — |
| 2015 | 783.2 | 27.8% | — |
| 2016 | 764.3 | 27.0% | — |
| 2017 | 786.7 | 27.9% | — |
| 2018 | 739.6 | 26.2% | — |
| 2019 | 737 | 26.1% | — |
| 2020 | 741.2 | 26.2% | — |
| 2021 | 618.3 | 21.9% | — |
| 2022 | 681.8 | 24.2% | — |
| 2023 | 550.8 | 19.5% | — |
| 2024 | 636.6 | 22.5% | — |
| 2025 | 698.1 | 24.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | WT | 137 | 137 | Dec 2005 | Operating | — | vestas V82-1.65 |
| 1A | Onshore Wind Turbine | WT | 61.1 | 61.1 | Jan 2006 | Operating | — | vestas V82-1.65 |
| 2 | Onshore Wind Turbine | WT | 33 | 33 | Jun 2006 | Operating | — | vestas V82-1.65 |
| 3 | Onshore Wind Turbine | WT | 90.1 | 91 | Dec 2006 | Operating | — | vestas V82-1.65 |
Owner / operator
Operator: Flat Rock Windpower, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Avangrid Power LLC | 50.0% | 161 MW |
| EDP Renewables North America LLC | 40.5% | 130 MW |
| Madison Windpower LLC | 9.5% | 31 MW |
Nearby plants
Within 80 km.
| Number Three Wind Project | 106 MW | 6.1 km |
| Chambers 3 - Lewis County | 2 MW | 6.1 km |
| Roaring Brook, LLC | 80 MW | 9 km |
| Martinsburg CSG LLC | 2 MW | 10.6 km |
| GSPP 9605 E Rd N, LLC | 2 MW | 10.6 km |
| GSPP 9557 E Rd S, LLC | 2 MW | 10.9 km |