Power plants in Lewis County, New York
29 operating power plants in Lewis County, New York, with 782 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Lewis County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Maple Ridge Wind FarmWind | 321 | 698 | 24.8% |
| 2 | CH Resources Beaver FallsNatural gas | 108 | 11.2 | 1.2% |
| 3 | Number Three Wind ProjectWind | 106 | 295 | 31.8% |
| 4 | Copenhagen Wind FarmWind | 80 | 264 | 37.7% |
| 5 | Roaring Brook, LLCWind | 80 | 208 | 29.8% |
| 6 | Soft MapleHydro | 16 | 31.6 | 22.5% |
| 7 | Moose RiverHydro | 13 | 37.1 | 33.6% |
| 8 | EagleHydro | 6.0 | 28.4 | 54.1% |
| 9 | Black River Hydro AssociatesHydro | 5.7 | 16.5 | 33.0% |
| 10 | Lyons Falls HydroelectricHydro | 5.6 | 27.1 | 55.2% |
| 11 | High Falls - Croghan NYHydro | 4.0 | 25.0 | 47.6% |
| 12 | Copenhagen PlantHydro | 3.3 | 7.0 | 24.3% |
| 13 | TaylorvilleHydro | 3.0 | 20.7 | 59.2% |
| 14 | Lyonsdale AssociatesHydro | 3.0 | 10.0 | 38.0% |
| 15 | Copenhagen SolarSolar | 2.9 | 5.1 | 20.2% |
| 16 | EffleyHydro | 2.6 | 13.8 | 52.3% |
| 17 | GSPP 9557 E Rd S, LLCSolar | 2.3 | 2.4 | – |
| 18 | GSPP 9605 E Rd N, LLCSolar | 2.3 | 2.5 | – |
| 19 | Martinsburg CSG LLCSolar | 2.2 | 3.9 | 20.3% |
| 20 | ElmerHydro | 2.0 | 10.0 | 56.9% |
| 21 | GouldtownHydro | 2.0 | 5.7 | 32.3% |
| 22 | Chambers 3 - Lewis CountySolar | 2.0 | 2.5 | 14.3% |
| 23 | Diana HydroelectricHydro | 1.8 | 4.9 | 31.2% |
| 24 | BelfortHydro | 1.6 | 10.4 | 59.6% |
| 25 | Kings Falls HydroelectricHydro | 1.6 | 2.2 | 15.6% |
| 26 | Upper Beaver Falls ProjectHydro | 1.5 | 9.5 | 71.9% |
| 27 | Port Leyden Hydroelectric ProjectHydro | 1.0 | 3.9 | 44.3% |
| 28 | Lower Beaver Falls ProjectHydro | 1.0 | 3.2 | 36.0% |
| 29 | KostervilleHydro | 1.0 | 1.8 | 20.8% |
MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
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Other counties in New York
St Lawrence County66 plants · 1,307 MWSuffolk County55 plants · 4,330 MWOrange County53 plants · 2,745 MWOneida County39 plants · 237 MWSaratoga County37 plants · 556 MWOnondaga County34 plants · 348 MWJefferson County33 plants · 256 MWMonroe County32 plants · 288 MWAlbany County31 plants · 1,505 MW