Heber Geothermal
Geothermal power plant in Imperial County, California. 91.5 MW of nameplate capacity across 5 generators, operated by ORCAL Geothermal, Inc.
Also known as Heber 1 Geothermal Plant · EIA plant 54689
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 91.5 MWNameplate
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- June 2006First generator online
- Operator
- ORCAL Geothermal, IncEIA operator ID 49748
- Grid
- IIDBalancing authority IID
- Price nodes
- None linkedNo verified ISO node
- Location
- Imperial County, CA32.7146, −115.5180
- EIA plant ID
- 54689EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Heber Geothermal produces
Free · EIA-923Net generation, 2025
376 GWh
376,280 MWh, final
Capacity factor, 2025
46.9%
2024: 47.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
145.3–384.9
GWh a year. Low 2022, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 318,099 | Not reported | 12 of 12 |
| 2001 | 317,648 | Not reported | 12 of 12 |
| 2002 | 277,343 | Not reported | 12 of 12 |
| 2003 | 326,026 | Not reported | 12 of 12 |
| 2004 | 323,887 | Not reported | 12 of 12 |
| 2005 | 324,830 | Not reported | 12 of 12 |
| 2006 | 343,608 | Not reported | 12 of 12 |
| 2007 | 344,678 | Not reported | 12 of 12 |
| 2008 | 367,233 | Not reported | 12 of 12 |
| 2009 | 363,701 | Not reported | 12 of 12 |
| 2010 | 333,031 | 60.8% | 12 of 12 |
| 2011 | 329,401 | 60.2% | 12 of 12 |
| 2012 | 320,773 | 58.4% | 12 of 12 |
| 2013 | 295,498 | 54.0% | 12 of 12 |
| 2014 | 265,012 | 48.4% | 12 of 12 |
| 2015 | 321,942 | 58.8% | 12 of 12 |
| 2016 | 355,359 | 64.7% | 12 of 12 |
| 2017 | 310,718 | 56.8% | 12 of 12 |
| 2018 | 312,351 | Not reported | 12 of 12 |
| 2019 | 338,754 | 47.4% | 12 of 12 |
| 2020 | 332,767 | 46.5% | 12 of 12 |
| 2021 | 328,032 | 45.9% | 12 of 12 |
| 2022 | 145,334 | 20.4% | 12 of 12 |
| 2023 | 250,142 | Not reported | 12 of 12 |
| 2024 | 384,859 | 47.9% | 12 of 12 |
| 2025 | 376,280 | 46.9% | 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 |
|---|---|---|---|
| 3 | Geothermal | 3.5 | June 2006 |
| 4 | Geothermal | 19.0 | January 2018 |
| OEC1 | Geothermal | 26.5 | April 2023 |
| OEC2 | Geothermal | 26.5 | April 2023 |
| OEC11 | Geothermal | 16.0 | September 2023 |
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 ORCAL 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 Heber Geothermal
More plants operated by ORCAL Geothermal, Inc
Questions about Heber Geothermal
How much power does Heber Geothermal produce?
Heber Geothermal reported 376,280 MWh (376 GWh) of net generation in 2025, a 46.9% capacity factor on 91.5 MW of nameplate capacity.
Where is Heber Geothermal?
Heber Geothermal is in Imperial County, California, at 32.7146, −115.5180. It is in the Imperial Irrigation District balancing area (IID).
Who operates Heber Geothermal?
EIA-860M for August 2026 lists ORCAL Geothermal, Inc as the operator (EIA operator ID 49748). The operator is not always the owner.
When did Heber Geothermal start operating?
Its first generator began operating in June 2006, 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)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page