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Lower No 1

Hydro power plant · Bonneville County, Idaho

Nameplate capacity
8.0 MW
Rank in Idaho
#99
of 155 plants
In service since
1982
April 1982

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
City of Idaho Falls - (ID)
County
Bonneville County
Generating units
1
Share of state capacity
0.12%
Rank among hydro plants in Idaho
#37 of 76
EIA plant code
7012

Generating units

Individual generating units at Lower No 1
UnitTechnologyNameplateSummerOnlineStatus
2Conventional Hydroelectric8.0 MW8.0 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 Idaho

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 8.0 MW solar plant and a 8.0 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 Idaho power plants · What Idaho actually generates