Directory of Power Plants in New Hampshire
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Antrim Wind | Antrim Wind Energy LLC | Antrim, NH | ISO New England (ISNE) | 75.6 GWh | Nov 2019 | May 2026 | Wind |
| Merrimack Solar Farm, LLC | Merrimack Solar Farm | Merrimack, NH | ISO New England (ISNE) | 3.3 GWh | Dec 2018 | Dec 2025 | Solar |
| Jericho Power | Jericho Power LLC | Berlin, NH | ISO New England (ISNE) | 22.5 GWh | Dec 2015 | May 2026 | Wind |
| Burgess BioPower | Berlin Station, LLC | Berlin, NH | ISO New England (ISNE) | 390.2 GWh | Oct 2013 | Dec 2025 | Wood/Wood Waste Solids |
| Groton Wind LLC | Avangrid Power LLC | Groton, NH | ISO New England (ISNE) | 101.4 GWh | Nov 2012 | May 2026 | Wind |
| Granite Reliable Power | NexteraEnergy | Dummer, NH | ISO New England (ISNE) | 191.6 GWh | Jan 2012 | May 2026 | Wind |
| Lempster Wind LLC | Avangrid Power LLC | Lempster, NH | ISO New England (ISNE) | 61.8 GWh | Nov 2008 | May 2026 | Wind |
| UNH 7.9 MW Plant | Emcor Energy Services | Durham, NH | ISO New England (ISNE) | 53.3 GWh | Aug 2006 | May 2026 | Landfill Gas : 55.5% Natural Gas : 42.0% Distillate Fuel Oil : 2.5% |
| Granite Ridge | Granite Ridge Energy LLC | Londonderry, NH | ISO New England (ISNE) | 3.8 TWh | Feb 2003 | May 2026 | Natural Gas |
| Newington Energy Center | Essential Power Operating Services, LLC | Newington, NH | ISO New England (ISNE) | 2.1 TWh | Sep 2002 | May 2026 | Natural Gas : 92.8% Distillate Fuel Oil : 7.2% |
| Nashua Plant | NextEra Renewable Fuels, LLC | Nashua, NH | ISO New England (ISNE) | 13.1 GWh | Mar 1996 | Dec 2025 | Landfill Gas |
| Lower Village Water Power Project | Sugar River Power LLC | Claremont, NH | ISO New England (ISNE) | 3.5 GWh | Apr 1995 | Dec 2025 | Water |
| Turnkey Landfill Gas Recovery | WM Renewable Energy LLC | Rochester, NH | ISO New England (ISNE) | 38.5 GWh | Jan 1992 | Dec 2025 | Landfill Gas |
| Dodge Falls Associates | Dodge Falls Associates LP | Bath, NH | ISO New England (ISNE) | 21.6 GWh | Nov 1990 | Dec 2025 | Water |
| Seabrook | NextEra Energy Seabrook LLC | Seabrook, NH | ISO New England (ISNE) | 9.9 TWh | Jul 1990 | May 2026 | Nuclear |
| Hillsborough Hosiery | Silverstreet Hydro | Hillsboro, NH | ISO New England (ISNE) | 2.1 GWh | Nov 1989 | Dec 2024 | Water |
| Wheelabrator Concord Facility | Wheelabrator Environmental Systems | Concord, NH | ISO New England (ISNE) | 93.5 GWh | Mar 1989 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Mascoma Hydro | Green Mountain Power Corp | W. Lebanon, NH | ISO New England (ISNE) | 202.0 MWh | Nov 1988 | Dec 2025 | Water |
| NE Renewable Whitefield, LLC | NE Renewable Whitefield, LLC | Whitefield, NH | ISO New England (ISNE) | 59.3 GWh | Feb 1988 | Dec 2025 | Wood/Wood Waste Solids |
| NE Renewable Springfield, LLC | NE Renewable Springfield, LLC | Springfield, NH | ISO New England (ISNE) | 73.3 GWh | Nov 1987 | Dec 2025 | Wood/Wood Waste Solids |
| NE Renewable Tamworth, LLC | NE Renewable Tamworth, LLC | Tamworth, NH | ISO New England (ISNE) | 77.8 GWh | Nov 1987 | Dec 2025 | Wood/Wood Waste Solids |
| Rolfe Canal Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 16.3 GWh | Nov 1987 | Dec 2025 | Water |
| Bridgewater Power LP | Bridgewater Power Co LP | Bridgewater, NH | ISO New England (ISNE) | 103.0 GWh | Jul 1987 | Dec 2025 | Wood/Wood Waste Solids : 99.8% |
| Penacook Upper Falls Hydro | Briar-Hydro Associates | Penacook, NH | ISO New England (ISNE) | 11.1 GWh | Nov 1986 | Dec 2025 | Water |
| Pontook Hydro Facility | Pontook Operating LP | Dummer, NH | ISO New England (ISNE) | 50.9 GWh | Nov 1986 | Dec 2025 | Water |
| Errol Hydroelectric Project | Errol Hydroelectric Co LLC | Errol, NH | ISO New England (ISNE) | 13.6 GWh | Oct 1986 | Dec 2025 | Water |
| Rollinsford | Green Mountain Power Corp | Rollinsford, NH | ISO New England (ISNE) | 3.0 GWh | Sep 1986 | Dec 2025 | Water |
| Mine Falls Generating Station | City of Nashua - (NH) | Nashua, NH | ISO New England (ISNE) | 9.1 GWh | Nov 1985 | Dec 2025 | Water |
| Pembroke Hydro | Eagle Creek Renewable Energy, LLC | Suncook, NH | ISO New England (ISNE) | 6.7 GWh | Nov 1985 | Dec 2025 | Water |
| Gregg Falls | Eagle Creek Renewable Energy, LLC | Goffstown, NH | ISO New England (ISNE) | 7.7 GWh | Nov 1985 | Dec 2025 | Water |
| EHC West Hopkinton | Green Mountain Power Corp | West Hopkinton, NH | ISO New England (ISNE) | 1.2 GWh | Jun 1985 | Dec 2025 | Water |
| Somersworth Lower Great Dam | Green Mountain Power Corp | Somersworth, NH | ISO New England (ISNE) | 498.0 MWh | Jun 1985 | Dec 2025 | Water |
| Clement Dam Hydro LLC | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 7.1 GWh | Nov 1984 | Oct 2025 | Water |
| Lochmere Hydroelectric Plant | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 2.1 GWh | Nov 1984 | Oct 2025 | Water |
| Newfound Hydroelectric | Eagle Creek Renewable Energy, LLC | Bristol, NH | ISO New England (ISNE) | 3.8 GWh | Nov 1983 | Dec 2025 | Water |
| Penacook Lower Falls | Briar-Hydro Associates | Boscawen, NH | ISO New England (ISNE) | 16.1 GWh | Jul 1983 | Dec 2025 | Water |
| Stevens Mills Dam | Eagle Creek Renewable Energy, LLC | Franklin, NH | ISO New England (ISNE) | 3.6 GWh | May 1982 | Dec 2025 | Water |
| China Mill Hydro | New Hampshire Hydro Associates | Allenstown, NH | ISO New England (ISNE) | 2.6 GWh | Jun 1981 | Dec 2025 | Water |
| Hampton Facility | Foss Manufacturing Company LLC | Hampton, NH | ISO New England (ISNE) | 28.2 GWh | Sep 1978 | May 2026 | Natural Gas |
| Newington | Granite Shore Power | Newington, NH | ISO New England (ISNE) | 157.4 GWh | May 1974 | Apr 2026 | Residual Fuel Oil : 64.1% Natural Gas : 34.5% Distillate Fuel Oil : 1.4% |
| Dartmouth College Heating Plant | Dartmouth College | Hanover, NH | ISO New England (ISNE) | 10.6 GWh | Dec 1969 | May 2026 | Residual Fuel Oil |
| Lost Nation | Granite Shore Power | Groveton, NH | ISO New England (ISNE) | 422.0 MWh | Aug 1969 | Dec 2024 | Distillate Fuel Oil |
| White Lake | Granite Shore Power | Tamworth, NH | ISO New England (ISNE) | 484.0 MWh | Jun 1968 | Dec 2024 | Jet Fuel |
| Merrimack | Granite Shore Power | Bow, NH | ISO New England (ISNE) | 115.9 GWh | Nov 1960 | May 2026 | Bituminous Coal : 97.6% Jet Fuel : 2.3% |
| S C Moore | Great River Hydro, LLC | Littleton, NH | ISO New England (ISNE) | 254.7 GWh | Dec 1956 | Dec 2025 | Water |
| Schiller | Granite Shore Power | Portsmouth, NH | ISO New England (ISNE) | 888.0 MWh | Sep 1952 | May 2026 | Jet Fuel |
| Smith (NH) | Central Rivers Power NH, LLC | Berlin, NH | ISO New England (ISNE) | 87.5 GWh | Jul 1948 | Dec 2025 | Water |
| Eastman Falls | Central Rivers Power NH, LLC | Franklin, NH | ISO New England (ISNE) | 21.9 GWh | Jul 1937 | Dec 2025 | Water |
| Comerford | Great River Hydro, LLC | Monroe, NH | ISO New England (ISNE) | 296.8 GWh | Aug 1930 | Dec 2025 | Water |
| Hooksett | Central Rivers Power NH, LLC | Hooksett, NH | ISO New England (ISNE) | 6.3 GWh | Jul 1927 | Dec 2025 | Water |
| Jackman | Central Rivers Power NH, LLC | Hillsborough, NH | ISO New England (ISNE) | 8.4 GWh | Jan 1926 | Aug 2025 | Water |
| Garvins Falls | Central Rivers Power NH, LLC | Bow, NH | ISO New England (ISNE) | 24.8 GWh | Jul 1925 | Dec 2025 | Water |
| Ayers Island | Central Rivers Power NH, LLC | Bristol, NH | ISO New England (ISNE) | 36.3 GWh | Jul 1925 | Dec 2025 | Water |
| Amoskeag | Central Rivers Power NH, LLC | Manchester, NH | ISO New England (ISNE) | 64.9 GWh | Jul 1922 | Dec 2025 | Water |
| Gorham | Central Rivers Power NH, LLC | Gorham, NH | ISO New England (ISNE) | 8.4 GWh | Jul 1917 | Dec 2025 | Water |
| Berlin Gorham | Great Lakes Hydro America LLC | Berlin, NH | ISO New England (ISNE) | 101.1 GWh | Dec 1913 | Dec 2025 | Water |
| Milton Hydro | SFR Hydro Cor | Milton, NH | ISO New England (ISNE) | 4.6 GWh | Dec 1913 | Dec 2025 | Water |
Browse Power Plants By New Hampshire Counties
Figures are based on October 2025 generation numbers.| County | State Rank | Active Plants | Oct 2025 Generation |
|---|---|---|---|
| Belknap County, NH | # 9 | 2 | 9.3 GWh |
| Carroll County, NH | # 8 | 3 | 78.3 GWh |
| Strafford County, NH | # 7 | 8 | 99.8 GWh |
| Sullivan County, NH | # 6 | 6 | 138.5 GWh |
| Hillsborough County, NH | # 5 | 11 | 184.1 GWh |
| County | State Rank | Active Plants | Oct 2025 Generation |
|---|---|---|---|
| Merrimack County, NH | # 4 | 14 | 319.9 GWh |
| Grafton County, NH | # 3 | 12 | 828.3 GWh |
| Coos County, NH | # 2 | 12 | 925.6 GWh |
| Rockingham County, NH | # 1 | 6 | 15.9 TWh |