World Power Plants

EHC West Hopkinton1 MW Hydroelectric

HydroRenewableVerified: Jul 2026

EHC West Hopkinton is a 1 MW hydro power plant in the United States, operated by Green Mountain Power Corp since 1985. Ranked #1429 of 1469 hydro plants in the United States. Its 1 MW represents 0.0008% of the total hydro capacity of 117,947 MW in the country. The largest hydro plant in the United States is the Grand Coulee Dam at 6,809 MW, making EHC West Hopkinton 6,809 times smaller. Nearby plants include Granite Ridge (790 MW, Gas), Merrimack (496.4 MW, Coal), and Antrim Wind (28.8 MW, Wind). The facility is located in New Hampshire, approximately 30 km northwest of Manchester.

Capacity
1 MW
Commissioning Year
1985

41 years old

Owner
Green Mountain Power Corp
Location
43.1897°, -71.7483°

United States of America, North America

Context & rankings
  • 9,554. largest of 10,098 plants in United States of America
  • #37,569 worldwide by installed capacity
  • #8,086 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

41 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Green Mountain Power Corp operates 47 plants totalling 325 MW

Regional density

182 plants within 100 km, 7,895 MW combined

Nearest plant: Hillsborough Hosiery (14.5 km)

Location

Coordinates:: 43.189700, -71.748300
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

EHC West Hopkinton is a hydro power plant producing approximately 4 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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