VESI Pomona
Battery storage project in Los Angeles County, California. 40 MW of nameplate capacity across 2 generators, operated by VESI Pomona Energy Storage, Inc..
Also known as EIA plant 50300
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 40 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- December 2016First generator online
- Operator
- VESI Pomona Energy Storage, Inc.EIA operator ID 54736
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 2 CAISO nodesResource nodes with prices
- Location
- Los Angeles County, CA34.0594, −117.7742
- EIA plant ID
- 50300EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power VESI Pomona produces
Free · EIA-923Net generation, 2025
−4.25 GWh
−4,245 MWh, final
Battery discharge, 2025
14.0 GWh
Charge 18.3 GWh
January to July 2026
−1.76 GWh
Provisional
Range, 2015 to 2025
−4.7–103.4
GWh a year. Low 2024, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 229,983 | Not reported | 12 of 12 |
| 2002 | 328,761 | Not reported | 12 of 12 |
| 2003 | 311,671 | Not reported | 12 of 12 |
| 2004 | 281,664 | Not reported | 12 of 12 |
| 2005 | 287,687 | Not reported | 12 of 12 |
| 2006 | 252,395 | Not reported | 12 of 12 |
| 2007 | 137,430 | Not reported | 12 of 12 |
| 2008 | 154,932 | Not reported | 12 of 12 |
| 2009 | 121,806 | Not reported | 12 of 12 |
| 2010 | 141,151 | 35.0% | 12 of 12 |
| 2011 | 120,401 | 29.9% | 12 of 12 |
| 2012 | 127,233 | 31.5% | 12 of 12 |
| 2013 | 106,532 | 26.4% | 12 of 12 |
| 2014 | 101,308 | 25.1% | 12 of 12 |
| 2015 | 103,358 | 25.6% | 12 of 12 |
| 2016 | 266 | Not reported | 1 of 12 |
| 2017 | −113 | 0.0% | 12 of 12 |
| 2018 | −2,468 | 0.0% | 12 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | −2,370 | Not reported | 12 of 12 |
| 2021 | −3,592 | Not reported | 12 of 12 |
| 2022 | −3,792 | Not reported | 12 of 12 |
| 2023 | −3,784 | Not reported | 12 of 12 |
| 2024 | −4,731 | Not reported | 12 of 12 |
| 2025 | −4,245 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −1,760 | 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 |
|---|---|---|---|
| BESS1 | Batteries | 20.0 | December 2016 |
| BESS2 | Batteries | 20.0 | August 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 VESI Pomona Energy Storage, Inc. as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
300 analyst questions a month, plus MCP
Query VESI Pomona and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near VESI Pomona
Questions about VESI Pomona
How much power does VESI Pomona produce?
VESI Pomona reported −4,245 MWh (−4.25 GWh) of net generation in 2025. From January to July 2026 it reported −1.76 GWh, which is provisional.
Where is VESI Pomona?
VESI Pomona is in Los Angeles County, California, at 34.0594, −117.7742. It is in the California Independent System Operator balancing area (CISO).
Who operates VESI Pomona?
EIA-860M for August 2026 lists VESI Pomona Energy Storage, Inc. as the operator (EIA operator ID 54736). The operator is not always the owner.
When did VESI Pomona start operating?
Its first generator began operating in December 2016, according to EIA-860M.
Does InfraMap have power prices for VESI Pomona?
Yes. InfraMap has CAISO day-ahead and real-time prices at 2 price nodes linked to VESI Pomona, 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