EAST FIELD ENERGY STORAGE
312.96 MW storage in San Diego, CA · In queue since April 2020 · Proposed COD June 2030
312.96 MW
Capacity
1
Components
Battery
6y 1m
In Queue
IA Executed
IA Status
COD target: 2030
Total Duration
10y 2m
Interconnection request submitted to ISO/RTO
CAISO uses cluster studies where projects are batched annually and studied together.
Typical: 36–48 months (IR to IA)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2030-06-25
East Field Energy Storage is a proposed battery storage project located in San Diego County, California, with a total capacity of 312.96 MW. The project is in the CAISO interconnection queue as entry CAISO-1810, with a queue entry date of April 15, 2020, and a proposed commercial operation date of June 25, 2030. The interconnection agreement for the project has been executed. The project is interconnected to the SDGE utility at the Otay Mesa Switchyard 230 kV point of interconnection.
The East Field Energy Storage project has been the subject of recent news coverage, with 16 articles published related to the industry, development, grid, and regulatory aspects of the project.
Generated from interconnection queue and public data sources
State
CA
County
San Diego
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SDGE
Entity
CAISO
Service Type
—
Point of Interconnection
Otay Mesa Switchyard 230 kV
Data Source
LBNL + Live
- ISO / RTO
- CAISO
- Trading Hub
- TH_SP15_GEN-APND
- Hub Confidence
- MEDIUM
- POI Substation
- Costa Mesa
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
Last updated 2026-03-14
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