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Power plant · EIA plant code 56317

Raft River Geothermal Power Plant

Operator
US Geothermal Inc.
Location
Cassia, ID (county level only)
Balancing authority
Bonneville Power Administration (BPAT)
Nameplate capacity
16 MW
Summer capacity
10.7 MW

U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Generation in 2025

Net generation
88,141 MWh
Capacity factor
61.0%

Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.

U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Emissions

Carbon dioxide in 2023
0 metric tons
Carbon dioxide per MWh
0 lb/MWh

eGRID reports 0 short tons. One short ton is 0.90718474 metric tons.

Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.

U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0

Generators

Generators at Raft River Geothermal Power Plant
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
1GeothermalGEO18 MW2008Retired in 2025 · As of September 2026 (EIA-860M): retired
OEC1GeothermalGEO16 MW2025Operable · As of September 2026 (EIA-860M): (OP) Operating

U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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