Gateway Energy Storage System
Battery storage project in San Diego County, California. 250 MW of nameplate capacity across 1 generator, operated by Gateway Energy Storage, LLC.
Also known as Gateway Energy Storage · EIA plant 63834
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Key facts
- Capacity
- 250 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 2020First generator online
- Operator
- Gateway Energy Storage, LLCEIA operator ID 63512
- Grid
- CAISOBalancing authority CISO
- Price nodes
- 1 CAISO nodeResource nodes with prices
- Location
- San Diego County, CA32.5706, −116.9106
- EIA plant ID
- 63834EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Gateway Energy Storage System produces
Free · EIA-923Net generation, 2025
−19.0 GWh
−19,031 MWh, final
Battery discharge, 2025
118 GWh
Charge 137 GWh
January to July 2026
−12.3 GWh
Provisional
Range, 2021 to 2025
−29.2–−17.1
GWh a year. Low 2023, high 2021
| 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 | −3,162 | Not reported | 6 of 12 |
| 2021 | −17,061 | Not reported | 12 of 12 |
| 2022 | −27,584 | Not reported | 12 of 12 |
| 2023 | −29,209 | Not reported | 12 of 12 |
| 2024 | −20,349 | Not reported | 12 of 12 |
| 2025 | −19,031 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −12,323 | 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 |
|---|---|---|---|
| GTWAY | Batteries | 250.0 | July 2020 |
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 Gateway Energy Storage, 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 Gateway Energy Storage System
How much power does Gateway Energy Storage System produce?
Gateway Energy Storage System reported −19,031 MWh (−19.0 GWh) of net generation in 2025. From January to July 2026 it reported −12.3 GWh, which is provisional.
Where is Gateway Energy Storage System?
Gateway Energy Storage System is in San Diego County, California, at 32.5706, −116.9106. It is in the California Independent System Operator balancing area (CISO).
Who operates Gateway Energy Storage System?
EIA-860M for August 2026 lists Gateway Energy Storage, LLC as the operator (EIA operator ID 63512). The operator is not always the owner.
When did Gateway Energy Storage System start operating?
Its first generator began operating in July 2020, according to EIA-860M.
Does InfraMap have power prices for Gateway Energy Storage System?
Yes. InfraMap has CAISO day-ahead and real-time prices at 1 price node linked to Gateway Energy Storage System, 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