Merrimack County, NH power plants

12 EIA-registered plants with 204.8 MW of nameplate capacity inside ISO-NE; the largest is Merrimack at 150.8 MW.

Capacity by fuel

Nameplate capacity · plants

coal: 150.8 MW1
hydroelectric: 40 MW10
biomass: 14 MW1

Merrimack County, NH capacity ranking

12 matching plants · ranked by nameplate capacity

Rank	Plant	Capacity	Type	Operator	Location
1	MerrimackGranite Shore PowerDetailed profile	150.8 MW	Conventional Steam Coal, Petroleum Liquids	Granite Shore Power	Merrimack County
2	Wheelabrator Concord FacilityWheelabrator Environmental Systems	14 MW	Municipal Solid Waste	Wheelabrator Environmental Systems	Merrimack County
3	Garvins FallsCentral Rivers Power NH, LLC	12.4 MW	Conventional Hydroelectric	Central Rivers Power NH, LLC	Merrimack County
4	Eastman FallsCentral Rivers Power NH, LLC	6.4 MW	Conventional Hydroelectric	Central Rivers Power NH, LLC	Merrimack County
5	Penacook Lower FallsBriar-Hydro Associates	4.6 MW	Conventional Hydroelectric	Briar-Hydro Associates	Merrimack County
6	Rolfe Canal HydroBriar-Hydro Associates	4.3 MW	Conventional Hydroelectric	Briar-Hydro Associates	Merrimack County
7	Penacook Upper Falls HydroBriar-Hydro Associates	3.4 MW	Conventional Hydroelectric	Briar-Hydro Associates	Merrimack County
8	Pembroke HydroEagle Creek Renewable Energy, LLC	2.7 MW	Conventional Hydroelectric	Eagle Creek Renewable Energy, LLC	Merrimack County
9	Stevens Mills DamEagle Creek Renewable Energy, LLC	1.9 MW	Conventional Hydroelectric	Eagle Creek Renewable Energy, LLC	Merrimack County
10	China Mill HydroNew Hampshire Hydro Associates	1.7 MW	Conventional Hydroelectric	New Hampshire Hydro Associates	Merrimack County
11	HooksettCentral Rivers Power NH, LLC	1.6 MW	Conventional Hydroelectric	Central Rivers Power NH, LLC	Merrimack County
12	EHC West HopkintonGreen Mountain Power Corp	1 MW	Conventional Hydroelectric	Green Mountain Power Corp	Merrimack County

Other ISO-NE counties

plants

County assignment and capacity come from the EIA generator inventory. Capacity is nameplate capacity, not seasonal capability or available operating capacity. A plant can include multiple generators and technologies.