Penacook Upper Falls Hydro

Penacook Upper Falls Hydro is a 3 MW hydroelectric power plant in Merrimack County, New Hampshire, operated by Briar-Hydro Associates. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 1986.

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

Nameplate capacity
3.4 MW
3.4 MW net summer
Generating units
1
In service
1986
EIA plant ID
50414

Where it is

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County
Merrimack County, New Hampshire
Coordinates
43.2832, -71.6008
Balancing authority
ISNE
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Briar-Hydro Associates
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Briar-Hydro Associates reports to EIA →

Penacook Upper Falls Hydro: FAQ

Where is Penacook Upper Falls Hydro?
In Merrimack County, New Hampshire (NH). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Penacook Upper Falls Hydro?
3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Penacook Upper Falls Hydro?
EIA-860M names Briar-Hydro Associates as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Penacook Upper Falls Hydro LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Briar-Hydro Associates here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Penacook Upper Falls Hydro LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Penacook Upper Falls Hydro still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.