Ormesa I
3300 East Evan Hewes Highway, Holtville, CA 92250Plant Summary Information
Ormesa I is ranked #27 out of 30 geothermal power plants in California in terms of total annual net electricity generation.
Ormesa I is comprised of 2 generators and generated 18.5 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Ormesa I |
|---|---|
| Utility Name | Ormat Nevada Inc |
| Location | Imperial County, CA |
| Initial Operation Date | December 1986 |
| Last Update | Dec 2025 |
| Annual Generation | 66.4 GWh |
| Annual Consumption | 251.7 k MMBtu |
| Ranked #3,979 out of 13,301 Power Plants Nationwide | |
| Ranked #52 out of 63 Geothermal Power Plants Nationwide | |
| Ranked #411 out of 1,641 California Power Plants | |
| Ranked #27 out of 30 California Geothermal Power Plants | |
| Fuel Types | Geothermal |
Map of Ormesa I
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Monthly Net Generation for Ormesa I
Monthly Plant Fuel Consumption for Ormesa I
Ormesa I Details
| Summary Information | |
|---|---|
| Plant Name | Ormesa I (50766) |
| Plant Address | 3300 East Evan Hewes Highway, Holtville, CA 92250 |
| Utility | Ormat Nevada Inc (34691) |
| Latitude, Longitude | 32.8156, -115.2568 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | December 1986 |
| Annual Generation | 66.4 GWh |
| Fuel Types | Geothermal |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | WECC |
| Balancing Authority | Imperial Irrigation District (IID) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Imperial Irrigation Water Dist |
| Ash Impoundment | |
| Transmission / Distribution Owner | Imperial Irrigation District (9216) CA |
| Grid Voltage | 92.00 kV |
| Energy Storage | No |
Generator ITLU1 Details Operating June 2003
| Technology | Geothermal |
|---|---|
| Prime Mover | Turbines Used in a Binary Cycle |
| Ownership | Single Owner |
| Nameplate Capacity | 12 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 8 MW |
| Winter Capacity | 12 MW |
| Minimum Load | 8 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
|---|---|
| First Operation Date | June 2003 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Geothermal |
| Startup Source | Geothermal |
| Solid Fuel Gasification | No |
| Time From Cold Shutdown To Full Load | OVER |
| Multiple Fuels | No |
Generator OEC2A Details Operating February 2025
| Technology | Geothermal |
|---|---|
| Prime Mover | Turbines Used in a Binary Cycle |
| Ownership | Single Owner |
| Nameplate Capacity | 7 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 4.7 MW |
| Winter Capacity | 7 MW |
| Minimum Load | 4.7 MW |
| Uprate/Derate Completed | No |
|---|---|
| Status | Operating |
| First Operation Date | February 2025 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Geothermal |
| Time From Cold Shutdown To Full Load | OVER |
Ormesa I Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Geothermal.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #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 | Ormesa III | Holtville, CA | 77.3 GWh |
| #46 | Salton Sea Power Gen Co - Unit 1 | Calipatria, CA | 77.1 GWh |
| #47 | San Emidio | Gerlach, NV | 76.4 GWh |
| #48 | Mammoth G3 | Mammoth Lakes, CA | 75.3 GWh |
| #49 | Salton Sea Power Gen Co - Unit 2 | Calipatria, CA | 74.8 GWh |
| #50 | Lightning Dock Geothermal | Animas, NM | 72.9 GWh |
| #51 | Steamboat III | Reno, NV | 72.7 GWh |
| #53 | Salt Wells | Fallon, NV | 63.4 GWh |
| #54 | Steamboat II | Reno, NV | 62.1 GWh |
| #55 | Jersey Valley Geothermal Power Plant | Imlay, NV | 58.1 GWh |
| #56 | Thermo No 1 | Milford, UT | 56.3 GWh |
| #57 | Stillwater Facility | Fallon, NV | 90.6 GWh |
| #58 | Mammoth G1 | Mammoth lakes, CA | 43.6 GWh |
| #59 | Star Peak Geothermal Plant | Imlay, NV | 43.0 GWh |
| #60 | Galena 2 Geothermal Power Plant | Reno, NV | 25.1 GWh |
| #61 | Whitegrass No. 1 | Yerington, NV | 17.0 GWh |
| #62 | CE Turbo LLC | Calipatria, CA | 9.3 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Ormesa I.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Community Solar 1 | Brawley, CA | 15.1 GWh | 17.4 mi |
| Crown Cooling Facility | Brawley, CA | 1.5 GWh | 19.1 mi |
| Drop 1 | Holtville, CA | 9.0 GWh | 19.6 mi |
| Drop 2 (CA) | Holtville, CA | 26.7 GWh | 15.2 mi |
| Drop 3 (CA) | Holtville, CA | 15.3 GWh | 10.8 mi |
| Drop 4 | Holtville, CA | 74.9 GWh | 7.9 mi |
| Drop 5 (CA) | Calexico, CA | 5.6 GWh | 12.6 mi |
| East Highline | Holtville, CA | 2.8 GWh | 8.2 mi |
| El Centro Hybrid | El Centro, CA | 870.3 GWh | 16.5 mi |
| Heber Geothermal | Heber, CA | 376.3 GWh | 16.7 mi |
| Heber Solar | Heber, CA | 24.1 GWh | 18 mi |
| IVC Solar | Imperial, CA | 4.2 GWh | 14.5 mi |
| Ormesa II | Holtville, CA | 124.5 GWh | 2 mi |
| Ormesa III | Holtville, CA | 77.3 GWh | 2.8 mi |
| Rockwood | Brawley, CA | 419.0 MWh | 18.9 mi |
| Second Imperial Geothermal | Heber, CA | 275.2 GWh | 17.6 mi |
| Sol Orchard El Centro PV | El Centro, CA | 45.1 GWh | 16.8 mi |
| Spreckels Sugar Company | Brawley, CA | 19.9 GWh | 19.2 mi |
| Valencia 3 | Imperial, CA | 4.2 GWh | 17 mi |
| Vikings Energy Farm | Holtville, CA | 287.4 GWh | 1.2 mi |