Raft River Geothermal Power Plant
Geothermal power plant in Cassia County, Idaho. 16 MW of nameplate capacity across 1 generator, operated by US Geothermal Inc..
Also known as EIA plant 56317
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 16 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- April 2025First generator online
- Operator
- US Geothermal Inc.EIA operator ID 50147
- Grid
- BPATBalancing authority BPAT
- Price nodes
- None linkedNo verified ISO node
- Location
- Cassia County, ID42.0994, −113.3825
- EIA plant ID
- 56317EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Raft River Geothermal produces
Free · EIA-923Net generation, 2025
88.1 GWh
88,141 MWh, final
Capacity factor, 2025
Not reported
2024: 58.2%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
72.0–95.6
GWh a year. Low 2016, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | 85,547 | Not reported | 12 of 12 |
| 2009 | 75,950 | Not reported | 12 of 12 |
| 2010 | 71,841 | 45.6% | 12 of 12 |
| 2011 | 63,490 | 40.3% | 12 of 12 |
| 2012 | 74,676 | 47.2% | 12 of 12 |
| 2013 | 39,683 | 25.2% | 12 of 12 |
| 2014 | 78,799 | 50.0% | 12 of 12 |
| 2015 | 75,600 | 47.9% | 12 of 12 |
| 2016 | 71,995 | 45.5% | 12 of 12 |
| 2017 | 84,436 | 53.5% | 12 of 12 |
| 2018 | 83,112 | 52.7% | 12 of 12 |
| 2019 | 95,614 | 60.6% | 12 of 12 |
| 2020 | 90,572 | 57.3% | 12 of 12 |
| 2021 | 92,941 | 58.9% | 12 of 12 |
| 2022 | 91,432 | 58.0% | 12 of 12 |
| 2023 | 88,590 | 56.2% | 12 of 12 |
| 2024 | 92,031 | 58.2% | 12 of 12 |
| 2025 | 88,141 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| OEC1 | Geothermal | 16.0 | April 2025 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists US Geothermal Inc. as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Raft River Geothermal
More plants operated by US Geothermal Inc.
Questions about Raft River Geothermal
How much power does Raft River Geothermal Power Plant produce?
Raft River Geothermal Power Plant reported 88,141 MWh (88.1 GWh) of net generation in 2025.
Where is Raft River Geothermal Power Plant?
Raft River Geothermal Power Plant is in Cassia County, Idaho, at 42.0994, −113.3825. It is in the Bonneville Power Administration balancing area (BPAT).
Who operates Raft River Geothermal Power Plant?
EIA-860M for August 2026 lists US Geothermal Inc. as the operator (EIA operator ID 50147). The operator is not always the owner.
When did Raft River Geothermal Power Plant start operating?
Its first generator began operating in April 2025, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page