OBERON
1,036.8 MW hybrid in Riverside, CA · In queue since April 2019 · Proposed COD April 2026
1,036.8 MW
Capacity
2
Components
Solar + Battery
7y 1m
In Queue
IA Executed
IA Status
Signed Apr 2021
Queue → IA
2 years
IA → COD
5 years
Total Duration
2 years
Schedule
1 months past proposed COD
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: 2026-04-15
The proposed OBERON project is a 1036.8 MW hybrid solar and battery energy storage development in Riverside County, California. The project consists of 518.4 MW of solar generation and 518.4 MW of battery storage. It is located within the CAISO region and interconnects to Southern California Edison (SCE) at the Red Bluff Substation 500kV.
OBERON entered the CAISO interconnection queue as queue ID CAISO-1642 on April 15, 2019, with a proposed commercial operation date of April 15, 2026. An Interconnection Agreement (IA) was executed on April 27, 2021, and the project currently has an active interconnection status. The project has been the subject of recent news coverage.
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
Red Bluff Substation 500kV
Data Source
LBNL + Live
- ISO / RTO
- CAISO
- Trading Hub
- TH_SP15_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- OBERON_7_N122
- POI Substation
- Red Bluff 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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