World Power Plants

Johnson Falls3.4 MW Hydroelectric

HydroRenewableVerified: Jul 2026

Johnson Falls is a 3.4 MW hydroelectric power plant in the United States, operated by Wisconsin Public Service Corp since 1923. Ranked #1024 of 1469 hydro plants in the United States. Its 3.4 MW represents 0.003% of the country's 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 Johnson Falls 2,000.3 times smaller. Nearby plants include White Rapids (9 MW, Hydro), Chalk Hill (7.8 MW, Hydro), and High Falls (WI) (7 MW, Hydro). The facility is located in Wisconsin, approximately 30 km northeast of Rhinelander.

Capacity
3.4 MW
Commissioning Year
1923

103 years old

Owner
Wisconsin Public Service Corp
Location
45.2875°, -88.1603°

United States of America, North America

Context & rankings
  • 7,029. largest of 10,098 plants in United States of America
  • #31,649 worldwide by installed capacity
  • #6,930 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

103 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Wisconsin Public Service Corp operates 19 plants totalling 2,483 MW

Regional density

34 plants within 100 km, 856 MW combined

Nearest plant: High Falls (WI) (3.2 km)

Location

Coordinates:: 45.287500, -88.160300
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Johnson Falls is a hydro power plant producing approximately 12 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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