OVERNIGHT SOLAR
300 MW hybrid in San Bernardino, CA · In queue since April 2020 · Proposed COD May 2027
300 MW
Capacity
2
Components
Solar + Battery
6y 1m
In Queue
IA Executed
IA Status
Signed Feb 2024
Queue → IA
3y 10m
IA → COD
3y 3m
Total Duration
3y 10m
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: 2027-05-01
OVERNIGHT SOLAR is a proposed hybrid solar and battery project located in San Bernardino County, California, with a total capacity of 300 MW. The project consists of 150 MW of solar generation and a 150 MW battery energy storage system. It is listed in the CAISO interconnection queue as entry CAISO-1774, with a queue entry date of April 15, 2020, and a proposed commercial operation date of May 1, 2027. The project's point of interconnection is the Kramer Substation 230kV, and the interconnecting utility is Southern California Edison (SCE).
The project's interconnection agreement (IA) has been executed as of February 17, 2024. Recent news coverage indicates interest in the project, with nine articles appearing in industry publications.
Generated from interconnection queue and public data sources
State
CA
County
San Bernardino
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SCE
Entity
CAISO
Service Type
—
Point of Interconnection
Kramer Substation 230kV
Data Source
LBNL + Live
- ISO / RTO
- CAISO
- Trading Hub
- TH_SP15_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- KRAMER_1_N001
- POI Substation
- Kramer 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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