Separator (Etiwanda) BESS
Battery storage project in San Bernardino County, California. 112.5 MW of nameplate capacity across 1 generator, operated by Southern California Edison Co.
Also known as Separator Battery Energy Storage System · EIA plant 65456
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 112.5 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- August 2024First generator online
- Operator
- Southern California Edison CoEIA operator ID 17609
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- San Bernardino County, CA34.0921, −117.5340
- EIA plant ID
- 65456EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Separator (Etiwanda) BESS produces
Free · EIA-923Net generation, 2025
−19.0 GWh
−19,004 MWh, final
Battery discharge, 2025
100 GWh
Charge 119 GWh
January to July 2026
−17.5 GWh
Provisional
| 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 | Not reported | Not reported | 0 of 12 |
| 2024 | 0 | Not reported | 4 of 12 |
| 2025 | −19,004 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −17,459 | 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 |
|---|---|---|---|
| SEPAR | Batteries | 112.5 | August 2024 |
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 Southern California Edison Co 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 Separator (Etiwanda) BESS
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Questions about Separator (Etiwanda) BESS
How much power does Separator (Etiwanda) BESS produce?
Separator (Etiwanda) BESS reported −19,004 MWh (−19.0 GWh) of net generation in 2025. From January to July 2026 it reported −17.5 GWh, which is provisional.
Where is Separator (Etiwanda) BESS?
Separator (Etiwanda) BESS is in San Bernardino County, California, at 34.0921, −117.5340. It is in the California Independent System Operator balancing area (CISO).
Who operates Separator (Etiwanda) BESS?
EIA-860M for August 2026 lists Southern California Edison Co as the operator (EIA operator ID 17609). The operator is not always the owner.
When did Separator (Etiwanda) BESS start operating?
Its first generator began operating in August 2024, according to EIA-860M.
Does InfraMap have power prices for Separator (Etiwanda) BESS?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Separator (Etiwanda) BESS, 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