Geysers Unit 5-20
Geothermal power plant in Sonoma County, California. 1,236 MW of nameplate capacity across 12 generators, operated by Geysers Power Co LLC.
Also known as EIA plant 286
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1,236 MWNameplate
- Generators
- 12 operatingEIA-860M, August 2026
- Operating since
- April 1971First generator online
- Operator
- Geysers Power Co LLCEIA operator ID 7160
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 10 CAISO nodesResource nodes with prices
- Location
- Sonoma County, CA38.7770, −122.7450
- EIA plant ID
- 286EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Geysers Unit 5-20 produces
Free · EIA-923Net generation, 2025
4.31 TWh
4,314,823 MWh, final
Capacity factor, 2025
Not reported
2024: 42.7%
January to July 2026
2.46 TWh
Provisional
Range, 2015 to 2025
4.3–4.7
TWh a year. Low 2025, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 4,522,472 | Not reported | 12 of 12 |
| 2001 | 4,832,567 | Not reported | 12 of 12 |
| 2002 | 4,724,044 | Not reported | 12 of 12 |
| 2003 | 4,751,150 | Not reported | 12 of 12 |
| 2004 | 4,775,206 | Not reported | 12 of 12 |
| 2005 | 4,744,965 | Not reported | 12 of 12 |
| 2006 | 4,694,243 | Not reported | 12 of 12 |
| 2007 | 4,809,006 | Not reported | 12 of 12 |
| 2008 | 4,661,667 | Not reported | 12 of 12 |
| 2009 | 4,681,475 | Not reported | 12 of 12 |
| 2010 | 4,655,802 | 41.8% | 12 of 12 |
| 2011 | 4,698,398 | 42.1% | 12 of 12 |
| 2012 | 4,814,528 | 43.1% | 12 of 12 |
| 2013 | 4,784,939 | 42.9% | 12 of 12 |
| 2014 | 4,591,707 | 41.2% | 12 of 12 |
| 2015 | 4,531,168 | 40.6% | 12 of 12 |
| 2016 | 4,628,971 | 41.4% | 12 of 12 |
| 2017 | 4,667,659 | Not reported | 12 of 12 |
| 2018 | 4,674,308 | 45.9% | 12 of 12 |
| 2019 | 4,351,429 | 42.7% | 12 of 12 |
| 2020 | 4,609,873 | 45.1% | 12 of 12 |
| 2021 | 4,580,405 | 45.0% | 12 of 12 |
| 2022 | 4,668,219 | 45.8% | 12 of 12 |
| 2023 | 4,499,612 | 44.2% | 12 of 12 |
| 2024 | 4,367,198 | 42.7% | 12 of 12 |
| 2025 | 4,314,823 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | 2,456,049 | Not reported | 7 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 account · CAISOEmissions
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 |
|---|---|---|---|
| U5 | Geothermal | 59.4 | April 1971 |
| U6 | Geothermal | 59.4 | April 1971 |
| U7 | Geothermal | 59.4 | July 1972 |
| U8 | Geothermal | 59.4 | July 1972 |
| U11 | Geothermal | 118.8 | December 1975 |
| U12 | Geothermal | 118.8 | August 1979 |
| U13 | Geothermal | 139.8 | April 1980 |
| U14 | Geothermal | 124.2 | February 1980 |
| U16 | Geothermal | 124.2 | October 1985 |
| U17 | Geothermal | 124.2 | November 1982 |
| U18 | Geothermal | 124.2 | November 1983 |
| U20 | Geothermal | 124.2 | October 1985 |
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 Geysers Power Co LLC 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 Geysers Unit 5-20
More plants operated by Geysers Power Co LLC
Questions about Geysers Unit 5-20
How much power does Geysers Unit 5-20 produce?
Geysers Unit 5-20 reported 4,314,823 MWh (4.31 TWh) of net generation in 2025. From January to July 2026 it reported 2.46 TWh, which is provisional.
Where is Geysers Unit 5-20?
Geysers Unit 5-20 is in Sonoma County, California, at 38.7770, −122.7450. It is in the California Independent System Operator balancing area (CISO).
Who operates Geysers Unit 5-20?
EIA-860M for August 2026 lists Geysers Power Co LLC as the operator (EIA operator ID 7160). The operator is not always the owner.
When did Geysers Unit 5-20 start operating?
Its first generator began operating in April 1971, according to EIA-860M.
Does InfraMap have power prices for Geysers Unit 5-20?
Yes. InfraMap has CAISO day-ahead and real-time prices at 10 price nodes linked to Geysers Unit 5-20, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- CAISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page