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
4y 11m
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
State
CA
County
San Bernardino
Region
CAISO
Developer
—
Utility
SCE
Entity
CAISO
Point of Interconnection
Calcite Substation 230 kV
Data Source
LBNL + Live
California utility SCE seeks expedited approval for solar-plus-storage offtake contracts
Southern California Edison (SCE) is seeking expedited CPUC approval for offtake contracts related to Copia Power's Centennial Flats project.
California utility SCE seeks expedited approval for solar-plus-storage offtake contracts
Southern California Edison (SCE) is seeking expedited CPUC approval for offtake contracts related to Copia Power's Centennial Flats project.
California utility SCE seeks expedited approval for solar-plus-storage offtake contracts
Southern California Edison (SCE) is seeking expedited CPUC approval for offtake contracts related to Copia Power's Centennial Flats project.
California utility SCE seeks expedited approval for solar-plus-storage offtake contracts
Southern California Edison (SCE) is seeking expedited CPUC approval for offtake contracts related to Copia Power's Centennial Flats project.
Last updated 2026-03-26