World Power Plants

Cowlitz Falls70 MW Hydroelectric

HydroRenewableVerified: Jul 2026

Cowlitz Falls is a 70 MW hydro power plant in the United States, operated by PUD No 1 of Lewis County since 1994. Ranked #260 of 1,469 hydro plants in the United States, Cowlitz Falls represents 0.06% of the total hydro capacity of 117,947 MW. The largest hydro plant in the United States is Grand Coulee Dam at 6,809 MW, making Cowlitz Falls 97 times smaller. Nearby plants within 50 km include Mossyrock (300 MW, Hydro), Swift 1 (240 MW, Hydro), and Swift 2 (72 MW, Hydro). The facility is located in Washington State, approximately 50 km from the city of Olympia.

Capacity
70 MW
Commissioning Year
1994

32 years old

Owner
PUD No 1 of Lewis County
Location
46.4661°, -122.1097°

United States of America, North America

Context & rankings
  • 2,591. largest of 10,098 plants in United States of America
  • #11,708 worldwide by installed capacity
  • #2,758 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

32 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

PUD No 1 of Lewis County operates 1 plants totalling 70 MW

Regional density

31 plants within 100 km, 6,882 MW combined

Nearest plant: Mossyrock (25.3 km)

Location

Coordinates:: 46.466100, -122.109700
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Cowlitz Falls is a hydro power plant producing approximately 245 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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