World Power Plants

Cascade Dam12.4 MW Hydroelectric

HydroRenewableVerified: Jul 2026

Cascade Dam is a 12.4 MW hydroelectric power plant in the United States, operated by Idaho Power Co since 1984. Ranked #602 of 1,469 hydro plants in the United States, Cascade Dam's 12.4 MW accounts for 0.01% of the country's total hydro capacity of 117,947 MW. The largest hydro plant in the United States is Grand Coulee Dam at 6,809 MW, making Cascade Dam 549 times smaller. Nearby plants within 50 km include Tamarack Energy Partnership (6.2 MW, Waste). The facility is located in Idaho, approximately 130 km north of Boise.

Capacity
12.4 MW
Commissioning Year
1984

42 years old

Owner
Idaho Power Co
Location
44.5256°, -116.0483°

United States of America, North America

Context & rankings
  • 4,537. largest of 10,098 plants in United States of America
  • #22,392 worldwide by installed capacity
  • #5,169 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

42 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Idaho Power Co operates 22 plants totalling 2,561 MW

Regional density

15 plants within 100 km, 1,659 MW combined

Nearest plant: Tamarack Energy Partnership (54.7 km)

Location

Coordinates:: 44.525600, -116.048300
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Cascade Dam is a hydro power plant producing approximately 43 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
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