SOLAR STAR 4
50 MW hybrid in Kern, CA · In queue since May 2016 · Proposed COD August 2026
50 MW
Capacity
2
Components
Solar + Battery
9y 10m
In Queue
IA Executed
IA Status
Signed Oct 2019
Queue → IA
3y 5m
IA → COD
6y 10m
Total Duration
3y 5m
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: 2026-08-12
State
CA
County
Kern
Region
CAISO
Developer
—
Utility
SCE
Entity
CAISO
Point of Interconnection
Whirlwind Substation 230kV
Data Source
LBNL + Live
Berkshire Hathaway IPP secures energy storage offtake agreements with California community electricity provider
BHE Renewables (BHER) has secured Power Purchase Agreements (PPAs) with California community electricity provider Clean Power Alliance (CPA).
Berkshire Hathaway IPP secures energy storage offtake agreements with California community electricity provider
BHE Renewables (BHER) has secured Power Purchase Agreements (PPAs) with California community electricity provider Clean Power Alliance (CPA).
Berkshire Hathaway IPP secures energy storage offtake agreements with California community electricity provider
BHE Renewables (BHER) has secured Power Purchase Agreements (PPAs) with California community electricity provider Clean Power Alliance (CPA).
Berkshire Hathaway IPP secures energy storage offtake agreements with California community electricity provider
BHE Renewables (BHER) has secured Power Purchase Agreements (PPAs) with California community electricity provider Clean Power Alliance (CPA).
Last updated 2026-03-26