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Foster

Hydro power plant · Linn County, Oregon

Nameplate capacity
20 MW
Rank in Oregon
#81
of 301 plants
In service since
1968
September 1968

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
USACE Northwestern Division
County
Linn County
Generating units
2
Share of state capacity
0.10%
Rank among hydro plants in Oregon
#25 of 63
EIA plant code
6552

Generating units

Individual generating units at Foster
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric10 MW10 MW1968Operating
2Conventional Hydroelectric10 MW10 MW1968Operating

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 Oregon

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 20 MW solar plant and a 20 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 Oregon power plants · What Oregon actually generates