SIENNA SOLAR 2
112 MW hybrid in San Bernardino, CA · In queue since April 2021 · Proposed COD March 2029
112 MW
Capacity
2
Components
Solar + Battery
5y 1m
In Queue
In Progress (unknown study)
IA Status
COD target: 2029
Total Duration
7y 11m
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: 2029-03-26
The proposed SIENNA SOLAR 2 project is a hybrid solar and battery energy storage development with a total capacity of 112 MW, located in San Bernardino County, California. The project consists of 56 MW of solar photovoltaic generation and a 56 MW battery energy storage system. It is interconnected to Southern California Edison (SCE) via the Calcite Substation 230 kV.
The project is listed in the CAISO interconnection queue under queue ID CAISO-2097, with an initial queue entry date of April 15, 2021. The proposed commercial operation date is March 26, 2029. The interconnection agreement (IA) status is currently listed as "In Progress (unknown study)".
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
Calcite Substation 230 kV
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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