Raft River Geothermal Power Plant
2960 South 2100 East, Malta, ID 83342Plant Summary Information
Raft River Geothermal Power Plant is ranked #38 out of 63 geothermal power plants nationwide in terms of total annual net electricity generation.
Raft River Geothermal Power Plant is comprised of 1 generator and generated 20.8 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Raft River Geothermal Power Plant |
|---|---|
| Utility Name | US Geothermal Inc. |
| Location | Cassia County, ID |
| Initial Operation Date | January 2008 |
| Last Update | Dec 2025 |
| Annual Generation | 88.1 GWh |
| Annual Consumption | 328.8 k MMBtu |
| Ranked #3,649 out of 13,081 Power Plants Nationwide | |
| Ranked #38 out of 63 Geothermal Power Plants Nationwide | |
| Ranked #36 out of 142 Idaho Power Plants | |
| Ranked #1 out of 1 Idaho Geothermal Power Plants | |
| Fuel Types | Geothermal |
Map of Raft River Geothermal Power Plant
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Monthly Net Generation for Raft River Geothermal Power Plant
Monthly Plant Fuel Consumption for Raft River Geothermal Power Plant
Raft River Geothermal Power Plant Details
| Summary Information | |
|---|---|
| Plant Name | Raft River Geothermal Power Plant (56317) |
| Plant Address | 2960 South 2100 East, Malta, ID 83342 |
| Utility | US Geothermal Inc. (50147) |
| Latitude, Longitude | 42.09942, -113.38245 |
| Generation Dates on File | Jan 2008 to Dec 2025 |
| Initial Operation Date | January 2008 |
| Annual Generation | 88.1 GWh |
| Fuel Types | Geothermal |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | Yes |
| FERC Small Power Producer Docket Number | 06-187-000 |
| FERC Exempt Wholesale Generator Status | Yes |
| FERC Exempt Wholesale Generator Docket Number | 06-187-000 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | Bonneville Power Administration (BPAT) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Wells |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Raft Rural Elec Coop Inc (22814) ID |
| Grid Voltage | 34.50 kV |
| Energy Storage | No |
Generator OEC1 Details Operating April 2025
| Technology | Geothermal |
|---|---|
| Prime Mover | Turbines Used in a Binary Cycle |
| Ownership | Wholly Owned by Other Entity |
| Nameplate Capacity | 16 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 10.7 MW |
| Winter Capacity | 16 MW |
| Minimum Load | 0.5 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | April 2025 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Geothermal |
| Time From Cold Shutdown To Full Load | 1H |
Raft River Geothermal Power Plant Plant Owners
| Owner Name | Address | Ownership |
|---|---|---|
| Raft River Energy 1 LLC | 390 E Parkcenter Blvd., Boise, ID 83706 | 100.00% |
| Raft River Energy 1 LLC | 390 E Parkcenter Blvd., Boise, ID 83706 | 100.00% |
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Geothermal.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #28 | NGP Blue Mountain I LLC | Winnemucca, NV | 173.1 GWh |
| #29 | Beowawe | Beowawe, NV | 167.1 GWh |
| #30 | Neal Hot Springs Geothermal Project | Vale, OR | 152.3 GWh |
| #31 | Cove Fort | Cove Fort, UT | 142.1 GWh |
| #32 | Ormesa II | Holtville, CA | 131.7 GWh |
| #33 | Tuscarora Geothermal Power Plant | Tuscarora, NV | 119.8 GWh |
| #34 | Soda Lake 3 | Fallon, NV | 108.3 GWh |
| #35 | Don A Campbell 1 Geothermal | Gabbs, NV | 97.0 GWh |
| #36 | Richard Burdette Geothermal | Reno, NV | 88.8 GWh |
| #37 | Don A Campbell 2 Geothermal | Luning, NV | 88.6 GWh |
| #39 | Mammoth G2 | Mammoth Lakes, CA | 83.8 GWh |
| #40 | Brady | Fallon, NV | 83.3 GWh |
| #41 | Aidlin Geothermal Power Plant | Middletown, CA | 82.4 GWh |
| #42 | Desert Peak Power Plant | Fernley, NV | 78.2 GWh |
| #43 | Patua Acquisition Project, LLC | Hazen, NV | 103.3 GWh |
| #44 | Galena 3 Geothermal Power Plant | Reno, NV | 77.9 GWh |
| #45 | Salton Sea Power Gen Co - Unit 1 | Calipatria, CA | 77.1 GWh |
| #46 | San Emidio | Gerlach, NV | 76.4 GWh |
| #47 | Mammoth G3 | Mammoth Lakes, CA | 75.3 GWh |
| #48 | Salton Sea Power Gen Co - Unit 2 | Calipatria, CA | 74.8 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Raft River Geothermal Power Plant.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| American Falls | American Falls, ID | 206.3 GWh | 53.5 mi |
| American Falls Solar | American Falls, ID | 43.6 GWh | 59.9 mi |
| American Falls Solar II | American Falls, ID | 45.4 GWh | 59.7 mi |
| Burley Butte Windpark | Burley, ID | 56.0 GWh | 38.8 mi |
| Bypass | Hazelton, ID | 28.2 GWh | 47 mi |
| Golden Valley Wind Park LLC | Burley, ID | 27.9 GWh | 36.3 mi |
| Hazelton B Hydro | Hazelton, ID | 23.3 GWh | 50.4 mi |
| Low Line Rapids | Kimberly, ID | 8.3 GWh | 57.3 mi |
| Mile 28 Water Power Project | Eden, ID | 5.3 GWh | 59.5 mi |
| Milner Butte LFGE | Burley, ID | 26.7 GWh | 40.7 mi |
| Milner Dam Wind Park LLC | Burley, ID | 50.5 GWh | 40.9 mi |
| Milner Hydro | Murtaugh, ID | 33.7 GWh | 44.6 mi |
| Minidoka | Rupert, ID | 98.8 GWh | 39.8 mi |
| Power County Wind Park North | American Falls, ID | 63.9 GWh | 54.7 mi |
| Power County Wind Park South | American Falls, ID | 56.8 GWh | 52.5 mi |
| Rocket Solar, LLC | Corinne, UT | 212.7 GWh | 57.9 mi |
| Rockland Wind Farm | American Falls, ID | 219.4 GWh | 46.7 mi |
| S E Hazelton A | Hazelton, ID | 24.9 GWh | 48.6 mi |
| South Forks Hydro | Hansen, ID | 26.3 GWh | 54.7 mi |
| Wilson Lake Hydroelectric Project | Eden, ID | 27.3 GWh | 54.5 mi |