Merrimack

97 River Rd., Bow, NH 3301

Plant Summary Information

Merrimack is ranked #5 out of 56 power plants in New Hampshire in terms of total annual net electricity generation.

Merrimack is comprised of 4 generators and generated 92.9 GWh during the 3-month period between June 2025 to September 2025.

Plant Name	Merrimack
Utility Name	Granite Shore Power
Location	Merrimack County, NH
Initial Operation Date	December 1960
Last Update	Sep 2025
Annual Generation	363.6 GWh
Annual Consumption	4.2 M MMBtu
Ranked #1,710 out of 12,539 Power Plants Nationwide
Ranked #67 out of 120 Bituminous Coal Power Plants Nationwide
Ranked #5 out of 56 New Hampshire Power Plants
Ranked #1 out of 1 New Hampshire Bituminous Coal Power Plants
Fuel Types	Bituminous Coal : 99.7%
Previous Operator	Public Service Co of NH (2013 to 2017) Granite Shore Power (2018 to 2024)

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Summary Information
Plant Name	Merrimack (2364)
Plant Address	97 River Rd., Bow, NH 3301
Utility	Granite Shore Power (62032)
Latitude, Longitude	43.1411, -71.4692
Generation Dates on File	Jan 2001 to Sep 2025
Initial Operation Date	December 1960
Annual Generation	363.6 GWh
Fuel Types	Bituminous Coal : 99.7%

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	No

Regulatory Information
Regulatory Status	Non-Regulated
NERC Region	NPCC
Balancing Authority	ISO New England Inc. (ISNE)
NAICS Code	Utilities (22)
Sector	IPP Non-CHP (2)
Water Source	Merrimack River
Ash Impoundment	No
Transmission / Distribution Owner	Public Service Co of NH (15472) NH
Grid Voltage	115.00 kV
Energy Storage	No

* Data obtained from the 2024 EIA 860 Report

First Operation Date	December 1960
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Bituminous Coal
Startup Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	OVER
Other Combustion Technology	Yes
Subcritical Technology	Yes
Multiple Fuels	No

First Operation Date	May 1968
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Bituminous Coal
Startup Source	Distillate Fuel Oil
Solid Fuel Gasification	No
Time From Cold Shutdown To Full Load	OVER
Other Combustion Technology	Yes
Subcritical Technology	Yes
Multiple Fuels	No

Status	Operating
First Operation Date	August 1968
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Jet Fuel
Time From Cold Shutdown To Full Load	10M
Other Combustion Technology	No
Multiple Fuels	No

Uprate/Derate Completed	No
Status	Operating
First Operation Date	August 1969
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Jet Fuel
Time From Cold Shutdown To Full Load	10M
Multiple Fuels	No

Owner Name	Address	Generator	Ownership
*We couldn't locate any owners for this plant*

Power plants with a similar annual net generation from Bituminous Coal.

Rank	Plant Name	Plant Location	Annual Generation
#57	Sioux	West Alton, MO	4.1 TWh
#58	North Valmy	Valmy, NV	1.3 TWh
#59	Barry	Bucks, AL	12.8 TWh
#60	Dallman	Springfield, IL	809.1 GWh
#61	AES Warrior Run Cogeneration Facility	Cumberland, MD	726.4 GWh
#62	Marion	Marion, IL	761.7 GWh
#63	Archer Daniels Midland Decatur	Decatur, IL	880.7 GWh
#64	Cooper	Somerset, KY	505.8 GWh
#65	Tennessee Eastman Operations	Kingsport, TN	1.1 TWh
#66	Cope	Cope, SC	1.7 TWh
#68	Pleasants Power Station	Willow Island, WV	339.7 GWh
#69	Indian River Generating Station	Dagsboro, DE	322.5 GWh
#70	Northside Generating Station	Jacksonville, FL	2.6 TWh
#71	Michigan City	Michigan City, IN	1.3 TWh
#72	Edwardsport	Edwardsport, IN	3.6 TWh
#73	Argus Cogen Plant	Trona, CA	252.4 GWh
#74	Rockport	Rockport, IN	9.1 TWh
#75	TES Filer City Station	Filer City, MI	316.0 GWh
#76	G G Allen	Belmont, NC	197.9 GWh
#77	General Chemical	Green River, WY	201.1 GWh

Below are closest 20 power plants surrounding Merrimack.

Plant Name	Plant Location	Annual Generation	Distance
Amoskeag	Manchester, NH	76.9 GWh	9.6 mi
China Mill Hydro	Allenstown, NH	2.8 GWh	1 mi
Clement Dam Hydro LLC	Tilton, NH	8.9 GWh	21.6 mi
Eastman Falls	Franklin, NH	24.3 GWh	23.2 mi
EHC West Hopkinton	West Hopkinton, NH	2.7 GWh	14.5 mi
Garvins Falls	Bow, NH	30.9 GWh	2.6 mi
Granite Ridge	Londonderry, NH	3.0 TWh	16.5 mi
Gregg Falls	Goffstown, NH	8.9 GWh	9.9 mi
Hillsborough Hosiery	Hillsboro, NH	2.1 GWh	21.5 mi
Hooksett	Hooksett, NH	5.3 GWh	2.7 mi
Jackman	Hillsborough, NH	8.8 GWh	24.3 mi
Lochmere Hydroelectric Plant	Tilton, NH	3.5 GWh	23.2 mi
Merrimack Solar Farm, LLC	Merrimack, NH	3.5 GWh	22.8 mi
Pembroke Hydro	Suncook, NH	7.4 GWh	1.1 mi
Penacook Lower Falls	Boscawen, NH	16.6 GWh	11.8 mi
Penacook Upper Falls Hydro	Penacook, NH	11.6 GWh	11.8 mi
Rolfe Canal Hydro	Penacook, NH	17.3 GWh	11.5 mi
Stevens Mills Dam	Franklin, NH	5.9 GWh	22.8 mi
Turnkey Landfill Gas Recovery	Rochester, NH	44.2 GWh	26.3 mi
Wheelabrator Concord Facility	Concord, NH	95.3 GWh	11.4 mi