Power plants in Grafton County, New Hampshire
10 operating power plants in Grafton County, New Hampshire, with 472 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Grafton County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | S C MooreHydro | 195 | 255 | 14.9% |
| 2 | ComerfordHydro | 168 | 297 | 20.2% |
| 3 | Groton Wind LLCWind | 48 | 115 | 27.3% |
| 4 | Bridgewater Power LPWood biomass | 20 | 103 | 58.8% |
| 5 | NE Renewable Bethlehem, LLCWood biomass | 18 | 0.0 | – |
| 6 | Ayers IslandHydro | 8.4 | 36.3 | 49.3% |
| 7 | Dartmouth College Heating PlantOil | 7.0 | 10.2 | 16.7% |
| 8 | Dodge Falls AssociatesHydro | 5.0 | 21.6 | 49.4% |
| 9 | Mascoma HydroHydro | 1.5 | 0.2 | 1.5% |
| 10 | Newfound HydroelectricHydro | 1.4 | 3.8 | 30.7% |
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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