Bear Mountains Pumped Storage
500 MW storage in Calaveras, CA · In queue since April 2023 · Proposed COD April 2028
500 MW
Capacity
1
Components
Battery
2y 11m
In Queue
Not Started
IA Status
COD target: 2028
Total Duration
5 years
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: 2028-04-01
State
CA
County
Calaveras
Region
CAISO
Developer
—
Utility
PGAE
Entity
CAISO
Point of Interconnection
BELLOTA 230 kV
Data Source
LBNL
Duke Energy seeks to extend operations for another 50 years at Bad Creek, supporting unprecedented growth in the Carolinas
For more than three decades, the pumped storage hydro station in South Carolina has performed a vital role as the largest “battery” on the...
Duke Energy seeks to extend operations for another 50 years at Bad Creek, supporting unprecedented growth in the Carolinas
For more than three decades, the pumped storage hydro station in South Carolina has performed a vital role as the largest “battery” on the...
Duke Energy seeks to extend operations for another 50 years at Bad Creek, supporting unprecedented growth in the Carolinas
For more than three decades, the pumped storage hydro station in South Carolina has performed a vital role as the largest “battery” on the...
Duke Energy seeks to extend operations for another 50 years at Bad Creek, supporting unprecedented growth in the Carolinas
For more than three decades, the pumped storage hydro station in South Carolina has performed a vital role as the largest “battery” on the...
Last updated 2026-03-26