Cleanview

Geothermal power plants in Idaho

Idaho has 1 operating geothermal power plants with 0.0 GW of capacity. 1 came online in 2025.

  • Operating1
BoiseIdaho FallsPocatelloCoeur d'Alene

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

The largest geothermal power plants in Idaho

Operating, by capacity

#Geothermal power plantYear onlineCapacity
1Raft River Geothermal Power Plant202516 MW

Geothermal power plants that came online most recently in Idaho

Newest first

#Geothermal power plantYear onlineCapacity
1Raft River Geothermal Power Plant202516 MW
The developer behind each project is on paid plans. See plans

How Cleanview tracks geothermal power plants

Operating geothermal power plants come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about geothermal power plants in Idaho

How many geothermal power plants are in Idaho?
Idaho has 1 operating utility-scale geothermal power plants with 0.0 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest geothermal power plant in Idaho?
Raft River Geothermal Power Plant in Cassia County, Idaho is the largest, at 16 MW. It came online in 2025.
How many geothermal power plants were built in Idaho in 2025?
1 geothermal power plant came online in Idaho in 2025, with 16 MW of capacity.
Who is developing geothermal power plants in Idaho?
Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

More energy trackers for Idaho

Geothermal power plants in other states

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