HIDDEN KNOLLS BESS
30.8 MW storage in Kern, CA · In queue since April 2021 · Proposed COD October 2028
30.8 MW
Capacity
1
Components
Battery
5y 1m
In Queue
System Impact Study
IA Status
COD target: 2028
Total Duration
7y 6m
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: 2028-10-18
The Hidden Knolls BESS is a proposed 30.8 MW battery storage project located in Kern County, California. The project, under development in the CAISO region, consists of 30.8 MW of battery capacity. It is interconnected to the PG&E utility via the Arco-Carneras 70 kV Line.
The project entered the CAISO interconnection queue as queue ID CAISO-2018 on April 15, 2021, with a proposed commercial operation date of October 18, 2028. Its interconnection status is currently in the System Impact Study phase. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
CA
County
Kern
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
PGAE
Entity
CAISO
Service Type
—
Point of Interconnection
Arco-Carneras 70 kV Line
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.
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