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Green Lake

Hydro power plant · Sitka County, Alaska

Nameplate capacity
19 MW
Rank in Alaska
#34
of 150 plants
In service since
1982
April 1982

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
City & Borough of Sitka - (AK)
County
Sitka County
Generating units
2
Share of state capacity
0.60%
Rank among hydro plants in Alaska
#8 of 30
EIA plant code
313

Generating units

Individual generating units at Green Lake
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric9.3 MW9.3 MW1982Operating
2Conventional Hydroelectric9.3 MW9.3 MW1982Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in Alaska

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 19 MW solar plant and a 19 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Alaska power plants · What Alaska actually generates