How many coal power plants are in New Hampshire?

1, with 496 MW of nameplate capacity between them, spread over 1 county. That is the EIA-860M operating count for 2026-07.

Is there a map of New Hampshire coal power plants?

Yes — the map above. Each dot is one coal power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest coal power plant in New Hampshire?

Merrimack, at 496 MW. The table is sorted largest first, so the rest follow it.

Is there a coal power plant near me in New Hampshire?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs New Hampshire's coal power plants?

Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.

How current is this, and what is left out?

EIA-860M for 2026-07. Conventional steam coal and integrated gasification combined cycle. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Coal Power Plants in New Hampshire

Every operating coal power plant in New Hampshire on EIA-860M for 2026-07: 1 plants, 4 generating units and 496 MW of nameplate capacity across 1 county, most of it inside ISO New England.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 1; 4 generating units
Nameplate capacity: 496 MW
Counties: 1
Grid operator: ISO New England; covers most of these plants

Map of coal power plants in New Hampshire

Every one of the 1 plants is drawn at the coordinate EIA files for it.

Loading map…

Coal · 1

List of coal power plants in New Hampshire

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

coal power plants in New Hampshire

Merrimack2 technologies	Granite Shore Power	Merrimack	496.4	4	1960	Operating

Largest coal power plants in New Hampshire

1MerrimackMerrimack County, New Hampshire496.4 MW

Coal power plants by county in New Hampshire

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Merrimack	1	496.4

Coal Power Plants in New Hampshire: FAQ

How many coal power plants are in New Hampshire?: 1, with 496 MW of nameplate capacity between them, spread over 1 county. That is the EIA-860M operating count for 2026-07.
Is there a map of New Hampshire coal power plants?: Yes — the map above. Each dot is one coal power plant, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest coal power plant in New Hampshire?: Merrimack, at 496 MW. The table is sorted largest first, so the rest follow it.
Is there a coal power plant near me in New Hampshire?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs New Hampshire's coal power plants?: Most of them sit inside ISO New England, according to the balancing-authority code EIA files against each plant. Live conditions for that market are on this site.
How current is this, and what is left out?: EIA-860M for 2026-07. Conventional steam coal and integrated gasification combined cycle. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.