World Power Plants

Green Lake18.6 MW Hydroelectric

HydroRenewableVerified: Jul 2026

Green Lake is an 18.6 MW hydroelectric power plant in the United States, operated by the City & Borough of Sitka since 1982. Ranked #506 of 1469 hydro plants in the United States. Its 18.6 MW accounts for 0.02% of the total hydro capacity of 117,947 MW in the country. The largest hydro plant in the United States is Grand Coulee Dam at 6,809 MW, making Green Lake 365 times smaller. Nearby plants within 50 km include Jarvis Street (25.6 MW, Oil) and Blue Lake Hydro (15.9 MW, Hydro). The facility is situated in Alaska, approximately 2,500 km from Anchorage.

Capacity
18.6 MW
Commissioning Year
1982

44 years old

Owner
City & Borough of Sitka - (AK)
Location
56.9863°, -135.1227°

United States of America, North America

Context & rankings
  • 4,122. largest of 10,098 plants in United States of America
  • #20,190 worldwide by installed capacity
  • #4,597 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

44 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

City & Borough of Sitka - (AK) operates 3 plants totalling 60 MW

Regional density

4 plants within 100 km, 46 MW combined

Nearest plant: Blue Lake Hydro (9.7 km)

Location

Coordinates:: 56.986300, -135.122700
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Green Lake is a hydro power plant producing approximately 65 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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