Holly Oaks
128.5 MW storage in Calaveras, CA · In queue since April 2023 · Proposed COD March 2028
128.5 MW
Capacity
1
Components
Battery
3y 1m
In Queue
Not Started
IA Status
COD target: 2028
Total Duration
4y 11m
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 not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2028-03-01
The Holly Oaks project is a proposed 128.5 MW battery storage project located in Calaveras County, California. The project is in the CAISO interconnection queue as entry CAISO-54839, with a queue entry date of April 17, 2023, and a proposed commercial operation date of March 1, 2028. The interconnection point is Valley Springs 230 kV. The project's interconnection agreement status is "Not Started."
The Holly Oaks project is being developed within the Pacific Gas & Electric (PGAE) service area. Recent news coverage indicates the project has been discussed in at least three news articles related to grid infrastructure.
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 230 kV
Data Source
LBNL
- 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.
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