DOUBLE BUTTE STORAGE
507.6 MW storage in Riverside, CA · In queue since April 2019 · Proposed COD July 2030
507.6 MW
Capacity
1
Components
Battery
6y 11m
In Queue
IA Executed
IA Status
COD target: 2030
Total Duration
11y 3m
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: 6–18 months
Proposed COD: 2030-07-01
State
CA
County
Riverside
Region
CAISO
Developer
—
Utility
SCE
Entity
CAISO
Point of Interconnection
Valley Substation 500 kV
Data Source
LBNL + Live
Idaho Power seeks regulatory approval of 100MW additional BESS after offtake agreement with Savion falls through
Idaho Power is seeking approval from the state regulator to deploy an additional 100MW of BESS to plug the gap left within its portfolio.
Idaho Power seeks regulatory approval of 100MW additional BESS after offtake agreement with Savion falls through
Idaho Power is seeking approval from the state regulator to deploy an additional 100MW of BESS to plug the gap left within its portfolio.
Idaho Power seeks regulatory approval of 100MW additional BESS after offtake agreement with Savion falls through
Idaho Power is seeking approval from the state regulator to deploy an additional 100MW of BESS to plug the gap left within its portfolio.
Idaho Power seeks regulatory approval of 100MW additional BESS after offtake agreement with Savion falls through
Idaho Power is seeking approval from the state regulator to deploy an additional 100MW of BESS to plug the gap left within its portfolio.
Last updated 2026-03-26