COBALT
512.612 MW hybrid in Riverside, CA · In queue since April 2020 · Proposed COD May 2027
512.612 MW
Capacity
2
Components
Solar + Battery
6y 1m
In Queue
IA Executed
IA Status
Signed May 2023
Queue → IA
3y 1m
IA → COD
4 years
Total Duration
3y 1m
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: 18–30 months
Proposed COD: 2027-05-31
The COBALT project is a proposed 512.61 MW hybrid solar and battery energy storage project located in Riverside County, California. The development project consists of a 256.41 MW solar array coupled with a 256.2 MW battery energy storage system. The project is in the CAISO interconnection queue (CAISO-1757) as of April 15, 2020, with a proposed commercial operation date of May 31, 2027. The point of interconnection is the Colorado River Substation at 220kV, and the interconnecting utility is SCE.
The project has an Interconnection Agreement (IA) executed as of May 1, 2023. The COBALT project has been the subject of recent news coverage, with 12 articles published related to deals, industry trends, development updates, regulatory matters, and grid implications.
Generated from interconnection queue and public data sources
State
CA
County
Riverside
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SCE
Entity
CAISO
Service Type
—
Point of Interconnection
Colorado River Substation 220kV
Data Source
LBNL + Live
- ISO / RTO
- CAISO
- Trading Hub
- TH_SP15_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- CRIMSN_7_CN3
- POI Substation
- Colorado River 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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