Power plants in New Hampshire
59 operating power projects with 4,232 MW of nameplate capacity, from EIA-860M for August 2026.
Projects
59
Nameplate capacity
4,232 MW
Counties with a plant
9
Operators
36
Power markets: ISO-NE prices
Capacity by fuel
Natural gas · 1,401 MW · 3Nuclear · 1,242 MW · 1Other fuels · 727 MW · 15Hydro · 516 MW · 32Wind · 214 MW · 5Coal · 114 MW · 1Battery storage · 14 MWSolar · 4 MW · 2
MW is nameplate from operating generators and batteries. Plant counts use each project's primary fuel, so a coal and gas plant counts once.
Largest power plants in New Hampshire
Top 50 · All 59 plants| Plant | Primary fuel | MW | County | Operator |
|---|---|---|---|---|
| Seabrook | Nuclear | 1,242 | Rockingham | NextEra Energy Seabrook LLC |
| Granite Ridge | Natural gas | 790 | Rockingham | Granite Ridge Energy LLC |
| Newington Energy Center | Natural gas | 606 | Rockingham | Essential Power Operating Services, LLC |
| Newington | Oil | 414 | Rockingham | Granite Shore Power |
| S C Moore | Hydro | 195 | Grafton | Great River Hydro, LLC |
| Comerford | Hydro | 168 | Grafton | Great River Hydro, LLC |
| Merrimack | Coal and oil | 151 | Merrimack | Granite Shore Power |
| Granite Reliable Power | Wind | 99 | Coos | NexteraEnergy |
| Burgess BioPower | Wood biomass | 75 | Coos | Berlin Station, LLC |
| Groton Wind LLC | Wind | 48 | Grafton | Avangrid Power LLC |
New Hampshire power plants by fuel
Newest plants in New Hampshire
Ordered by the month the first generator began operating.
Blackwater Rd SolarSolar · 2 MW · Strafford County · December 2025Antrim WindWind · 28.8 MW · Hillsborough County · December 2019Merrimack Solar Farm, LLCSolar · 2.4 MW · Hillsborough County · January 2019Jericho PowerWind · 14.3 MW · Coos County · January 2016Burgess BioPowerWood biomass · 75 MW · Coos County · November 2013Groton Wind LLCWind · 48 MW · Grafton County · December 2012
Counties with the most capacity
Largest operators in New Hampshire
NextEra Energy Seabrook LLC1 plant · 1,242 MW
Granite Ridge Energy LLC1 plant · 790 MW
Granite Shore Power5 plants · 623 MW
Essential Power Operating Services, LLC1 plant · 606 MW
Great River Hydro, LLC2 plants · 363 MW
Grouped by EIA operator name. Parent companies are not merged.
All 59 plants in New Hampshire, by county
Belknap County 2 plants
- Clement Dam Hydro LLC Hydro · 2.4 MW
- Lochmere Hydroelectric Plant Hydro · 1.2 MW
Carroll County 2 plants
- NE Renewable Tamworth, LLC Wood biomass · 25 MW
- White Lake Oil · 18.6 MW
Coos County 10 plants
- Granite Reliable Power Wind · 99 MW
- Burgess BioPower Wood biomass · 75 MW
- Berlin Gorham Hydro · 44.3 MW
- NE Renewable Whitefield, LLC Wood biomass · 19.9 MW
- Lost Nation Oil · 18 MW
- Smith (NH) Hydro · 15 MW
- Jericho Power Wind · 14.3 MW
- Pontook Hydro Facility Hydro · 10.5 MW
- Errol Hydroelectric Project Hydro · 3 MW
- Gorham Hydro · 2.2 MW
Grafton County 10 plants
- S C Moore Hydro · 195.4 MW
- Comerford Hydro · 167.8 MW
- Groton Wind LLC Wind · 48 MW
- Bridgewater Power LP Wood biomass · 20 MW
- NE Renewable Bethlehem, LLC Wood biomass · 17.5 MW
- Ayers Island Hydro · 8.4 MW
- Dartmouth College Heating Plant Oil · 7 MW
- Dodge Falls Associates Hydro · 5 MW
- Mascoma Hydro Hydro · 1.5 MW
- Newfound Hydroelectric Hydro · 1.4 MW
Hillsborough County 8 plants
- Antrim Wind Wind · 28.8 MW
- Amoskeag Hydro · 16 MW
- Gregg Falls Hydro · 3.5 MW
- Jackman Hydro · 3.2 MW
- Mine Falls Generating Station Hydro · 3 MW
- Nashua Plant Landfill gas · 2.4 MW
- Merrimack Solar Farm, LLC Solar · 2.4 MW
- Hillsborough Hosiery Hydro · 1.2 MW
Merrimack County 12 plants
- Merrimack Coal · 150.8 MW
- Wheelabrator Concord Facility Municipal solid waste · 14 MW
- Garvins Falls Hydro · 12.4 MW
- Eastman Falls Hydro · 6.4 MW
- Penacook Lower Falls Hydro · 4.6 MW
- Rolfe Canal Hydro Hydro · 4.3 MW
- Penacook Upper Falls Hydro Hydro · 3.4 MW
- Pembroke Hydro Hydro · 2.7 MW
- Stevens Mills Dam Hydro · 1.9 MW
- China Mill Hydro Hydro · 1.7 MW
- Hooksett Hydro · 1.6 MW
- EHC West Hopkinton Hydro · 1 MW
Rockingham County 6 plants
- Seabrook Nuclear · 1,242 MW
- Granite Ridge Natural gas · 790 MW
- Newington Energy Center Natural gas · 605.5 MW
- Newington Oil · 414 MW
- Schiller Oil · 21.2 MW
- Hampton Facility Natural gas · 5 MW
Strafford County 6 plants
- Turnkey Landfill Gas Recovery Landfill gas · 9.2 MW
- UNH 7.9 MW Plant Landfill gas · 7.9 MW
- Blackwater Rd Solar Solar · 2 MW
- Milton Hydro Hydro · 1.4 MW
- Rollinsford Hydro · 1.4 MW
- Somersworth Lower Great Dam Hydro · 1.3 MW
Sullivan County 3 plants
- Lempster Wind LLC Wind · 24 MW
- NE Renewable Springfield, LLC Wood biomass · 20 MW
- Lower Village Water Power Project Hydro · 1.2 MW
Questions about power plants in New Hampshire
How many power plants are in New Hampshire?
EIA-860M for August 2026 lists 59 operating power projects in New Hampshire, with 4,232 MW of nameplate capacity including batteries.
What is the largest power plant in New Hampshire?
Seabrook in Rockingham County, with 1,242 MW of nameplate capacity. The next largest is Granite Ridge, with 790 MW.
How much of New Hampshire's capacity is nuclear?
1,242 MW, about 29% of nameplate capacity. 1 project have nuclear as their primary fuel.
Source: EIA-860M August 2026, published 2026-09-24. Page updated 2026-10-04. Data sources