Power plants in Merrimack County, New Hampshire
12 operating power plants in Merrimack County, New Hampshire, with 205 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
12
Nameplate capacity
205 MW
Net generation, 2025
205 GWh
11 of 12 plants reported
Largest power plants in Merrimack County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | MerrimackCoal and oil | 151 | – | – |
| 2 | Wheelabrator Concord FacilityMunicipal solid waste | 14 | 94.5 | 77.0% |
| 3 | Garvins FallsHydro | 12 | 24.8 | 22.8% |
| 4 | Eastman FallsHydro | 6.4 | 21.9 | 39.0% |
| 5 | Penacook Lower FallsHydro | 4.6 | 16.1 | 39.8% |
| 6 | Rolfe Canal HydroHydro | 4.3 | 16.3 | 43.3% |
| 7 | Penacook Upper Falls HydroHydro | 3.4 | 11.1 | 37.3% |
| 8 | Pembroke HydroHydro | 2.7 | 6.7 | 28.3% |
| 9 | Stevens Mills DamHydro | 1.9 | 3.6 | 21.8% |
| 10 | China Mill HydroHydro | 1.7 | 2.6 | 17.2% |
| 11 | HooksettHydro | 1.6 | 6.3 | 44.7% |
| 12 | EHC West HopkintonHydro | 1.0 | 1.2 | 14.1% |
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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