Blackwell?s Corner Storage Facility
Battery storage project in Kern County, California. 2 MW of nameplate capacity across 1 generator, operated by Blackwell Test Facility, LLC.
Also known as EIA plant 66648
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 2 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- June 2025First generator online
- Operator
- Blackwell Test Facility, LLCEIA operator ID 65673
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- Kern County, CA35.6184, −119.8407
- EIA plant ID
- 66648EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Blackwell?s Corner Storage Facility produces
Free · EIA-923Net generation, 2025
−147 MWh
−147 MWh, final
Battery discharge, 2025
535 MWh
Charge 682 MWh
January to July 2026
Not reported
Provisional. 0 of 7 months reported
| 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 | Not reported | Not reported | 0 of 12 |
| 2025 | −147 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 |
|---|---|---|---|
| BLKWL | Batteries | 2.0 | June 2025 |
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 Blackwell Test Facility, LLC 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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Questions about Blackwell?s Corner Storage Facility
How much power does Blackwell?s Corner Storage Facility produce?
Blackwell?s Corner Storage Facility reported −147 MWh (−147 MWh) of net generation in 2025.
Where is Blackwell?s Corner Storage Facility?
Blackwell?s Corner Storage Facility is in Kern County, California, at 35.6184, −119.8407. It is in the California Independent System Operator balancing area (CISO).
Who operates Blackwell?s Corner Storage Facility?
EIA-860M for August 2026 lists Blackwell Test Facility, LLC as the operator (EIA operator ID 65673). The operator is not always the owner.
When did Blackwell?s Corner Storage Facility start operating?
Its first generator began operating in June 2025, according to EIA-860M.
Does InfraMap have power prices for Blackwell?s Corner Storage Facility?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Blackwell?s Corner Storage Facility, 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