US Borax
Natural gas power plant in Kern County, California. 48.2 MW of nameplate capacity across 1 generator, operated by U S Borax Inc.
Also known as US Borax Power Plant · EIA plant 50115
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Key facts
- Capacity
- 48.2 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 1984First generator online
- Operator
- U S Borax IncEIA operator ID 22669
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Kern County, CA35.0329, −117.7010
- EIA plant ID
- 50115EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power US Borax produces
Free · EIA-923Net generation, 2025
274 GWh
274,462 MWh, final
Capacity factor, 2025
65.0%
2024: 64.0%
January to July 2026
145 GWh
Provisional
Range, 2015 to 2025
270.9–336.5
GWh a year. Low 2024, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 319,733 | Not reported | 12 of 12 |
| 2002 | 314,819 | Not reported | 12 of 12 |
| 2003 | 284,867 | Not reported | 11 of 12 |
| 2004 | 366,304 | Not reported | 12 of 12 |
| 2005 | 272,100 | Not reported | 12 of 12 |
| 2006 | 327,503 | Not reported | 12 of 12 |
| 2007 | 337,086 | Not reported | 12 of 12 |
| 2008 | 334,835 | Not reported | 12 of 12 |
| 2009 | 283,843 | Not reported | 12 of 12 |
| 2010 | 349,783 | 82.8% | 12 of 12 |
| 2011 | 338,724 | 80.2% | 12 of 12 |
| 2012 | 313,505 | 74.0% | 12 of 12 |
| 2013 | 323,635 | 76.6% | 12 of 12 |
| 2014 | 332,407 | 78.7% | 12 of 12 |
| 2015 | 324,305 | 76.8% | 12 of 12 |
| 2016 | 336,500 | 79.5% | 12 of 12 |
| 2017 | 301,656 | 71.4% | 12 of 12 |
| 2018 | 282,302 | 66.9% | 12 of 12 |
| 2019 | 296,532 | 70.2% | 12 of 12 |
| 2020 | 315,050 | 74.4% | 12 of 12 |
| 2021 | 274,145 | 64.9% | 12 of 12 |
| 2022 | 303,112 | 71.8% | 12 of 12 |
| 2023 | 318,746 | 75.5% | 12 of 12 |
| 2024 | 270,865 | 64.0% | 12 of 12 |
| 2025 | 274,462 | 65.0% | 12 of 12 |
| 2026 (provisional, partial year) | 144,615 | 59.0% | 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 |
|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | 48.2 | July 1984 |
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 U S Borax 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 US Borax
Questions about US Borax
How much power does US Borax produce?
US Borax reported 274,462 MWh (274 GWh) of net generation in 2025, a 65.0% capacity factor on 48.2 MW of nameplate capacity. From January to July 2026 it reported 145 GWh, which is provisional.
Where is US Borax?
US Borax is in Kern County, California, at 35.0329, −117.7010. It is in the California Independent System Operator balancing area (CISO).
Who operates US Borax?
EIA-860M for August 2026 lists U S Borax Inc as the operator (EIA operator ID 22669). The operator is not always the owner.
When did US Borax start operating?
Its first generator began operating in July 1984, according to EIA-860M.
Does InfraMap have power prices for US Borax?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to US Borax, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page