DOUBLE SPRINGS ENERGY STORAGE
101 MW storage in Calaveras, CA · In queue since April 2021 · Proposed COD August 2029
101 MW
Capacity
1
Components
Battery
5y 1m
In Queue
IA Executed
IA Status
COD target: 2029
Total Duration
8y 4m
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: 2029-08-17
The Double Springs Energy Storage project is a proposed 101 MW battery storage project in Calaveras County, California. Interconnecting to the PG&E utility at the Valley Springs 60 kV point of interconnection, the project is in the CAISO queue as entry CAISO-1876, with a queue entry date of April 15, 2021. The proposed commercial operation date is August 17, 2029, and the interconnection agreement has been executed.
The Double Springs Energy Storage project has been the subject of recent news coverage, with five articles categorized as deals, development, and industry news.
Generated from interconnection queue and public data sources
State
CA
County
Calaveras
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
PGAE
Entity
CAISO
Service Type
—
Point of Interconnection
Valley Springs 60 kV
Data Source
LBNL + Live
- ISO / RTO
- CAISO
- Trading Hub
- TH_ZP26_GEN-APND
- Hub Confidence
- LOW
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 2026-03-26
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