World Power Plants

Upper Salmon A is an 18 MW hydro power plant in the United States, operated by Idaho Power Co since 1937. Ranked #508 of 1,469 hydro plants in the United States. Its 18 MW represents 0.02% 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 Upper Salmon A 378.3 times smaller. Nearby plants within 50 km include Bliss (75 MW, Hydro), Lower Salmon (60 MW, Hydro), and High Mesa (40 MW, Wind). The facility is located in Idaho, approximately 200 km northeast of Boise.

Capacity
18 MW
Commissioning Year
1937

89 years old

Owner
Idaho Power Co
Location
42.7674°, -114.9247°

United States of America, North America

Context & rankings
  • 4,139. largest of 10,098 plants in United States of America
  • #20,292 worldwide by installed capacity
  • #4,616 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

89 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Idaho Power Co operates 22 plants totalling 2,561 MW

Regional density

68 plants within 100 km, 1,559 MW combined

Nearest plant: Upper Salmon B (1.4 km)

Location

Coordinates:: 42.767400, -114.924700
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Upper Salmon A is a hydro power plant producing approximately 63 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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