World Power Plants

Spearfish Hydro is a 4 MW hydro power plant in the United States, operated by the City of Spearfish since 1912. Ranked #954 of 1469 hydro plants in the United States. Its 4 MW represents 0.003% of the United States' total hydro capacity of 117,947 MW. The largest hydro plant in the United States is the Grand Coulee Dam at 6,809 MW, making Spearfish 1,702 times smaller. There are no nearby plants within 50 km. The facility is located in South Dakota, approximately 100 km from the city of Rapid City.

Capacity
4 MW
Commissioning Year
1912

114 years old

Owner
City of Spearfish
Location
44.4783°, -103.8547°

United States of America, North America

Context & rankings
  • 6,664. largest of 10,098 plants in United States of America
  • #30,667 worldwide by installed capacity
  • #6,718 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

114 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

City of Spearfish operates 1 plants totalling 4 MW

Regional density

2 plants within 100 km, 150 MW combined

Nearest plant: Lange Gas Turbines (61.8 km)

Location

Coordinates:: 44.478300, -103.854700
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Spearfish Hydro is a hydro power plant producing approximately 14 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

See Incorrect or Missing Data?

Help us improve our database by reporting any corrections or updates. Your contribution helps keep our global power plant data accurate and up-to-date.