Helios Grid Reliability
205.45 MW storage in Calaveras, CA · In queue since April 2023 · Proposed COD September 2028
205.45 MW
Capacity
1
Components
Battery
3y 1m
In Queue
Not Started
IA Status
COD target: 2028
Total Duration
5y 5m
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: 2028-09-15
The Helios Grid Reliability project is a proposed 205.45 MW battery storage project located in Calaveras County, California. The project is in the CAISO interconnection queue as entry CAISO-54725, with a queue entry date of April 17, 2023, and a proposed commercial operation date of September 15, 2028. The point of interconnection is the LOCKEFORD 115 kV substation.
The project's interconnection agreement status is "Not Started." It is in the Pacific Gas and Electric (PGAE) service area. The Helios Grid Reliability project has been mentioned in recent news coverage related to the grid and energy industry.
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
LOCKEFORD 115 kV
Data Source
LBNL
- ISO / RTO
- CAISO
- Trading Hub
- TH_NP15_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- LOCKFORD_7_N001
- POI Substation
- Lockeford Substation
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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