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Lower No 2

Hydro power plant · Bonneville County, Idaho

Nameplate capacity
3.0 MW
Rank in Idaho
#124
of 155 plants
In service since
1940
August 1940

Details

Primary fuel
Hydro
Technology
Conventional Hydroelectric
Operator
City of Idaho Falls - (ID)
County
Bonneville County
Generating units
1
Share of state capacity
0.05%
Rank among hydro plants in Idaho
#52 of 76
EIA plant code
843

Generating units

Individual generating units at Lower No 2
UnitTechnologyNameplateSummerOnlineStatus
1Conventional Hydroelectric3.0 MW3.0 MW1940Operating

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

West Point RNGOther3.2 MW
Mink Creek HydroHydro3.1 MW
Weiser BESSBattery storage3.0 MW
Little Wood Hydro ProjectHydro2.8 MW

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 3.0 MW solar plant and a 3.0 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