Sanborn BESS 4
Battery storage project in Kern County, California. 47 MW of nameplate capacity across 1 generator, operated by Terra-Gen Operating Co-BESS.
Also known as EIA plant 65673
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 47 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- November 2023First generator online
- Operator
- Terra-Gen Operating Co-BESSEIA operator ID 64287
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Kern County, CA34.9581, −118.1078
- EIA plant ID
- 65673EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Sanborn BESS 4 produces
Free · EIA-923Net generation, 2025
−10.00 GWh
−9,996 MWh, final
Battery discharge, 2025
62.6 GWh
Charge 72.6 GWh
January to July 2026
−9.00 GWh
Provisional
Range, 2024 to 2025
−10.0–−7.5
GWh a year. Low 2025, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | −1,073 | Not reported | 2 of 12 |
| 2024 | −7,463 | Not reported | 12 of 12 |
| 2025 | −9,996 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −8,999 | Not reported | 7 of 7 |
* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.
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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| BESS | Batteries | 47.0 | November 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 Terra-Gen Operating Co-BESS as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Sanborn BESS 4
More plants operated by Terra-Gen Operating Co-BESS
Questions about Sanborn BESS 4
How much power does Sanborn BESS 4 produce?
Sanborn BESS 4 reported −9,996 MWh (−10.00 GWh) of net generation in 2025. From January to July 2026 it reported −9.00 GWh, which is provisional.
Where is Sanborn BESS 4?
Sanborn BESS 4 is in Kern County, California, at 34.9581, −118.1078. It is in the California Independent System Operator balancing area (CISO).
Who operates Sanborn BESS 4?
EIA-860M for August 2026 lists Terra-Gen Operating Co-BESS as the operator (EIA operator ID 64287). The operator is not always the owner.
When did Sanborn BESS 4 start operating?
Its first generator began operating in November 2023, according to EIA-860M.
Does InfraMap have power prices for Sanborn BESS 4?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Sanborn BESS 4, 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