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BATTERY STORAGE · CAISOGrand BESS
Grand BESS is a 205 MW battery storage request withdrawn in the CAISO interconnection queue, in Santa Clara County, California, connecting to PGAE.
Queue statusWithdrawn / abandoned
- PlanningQueued Apr 2023 (completed)
- Withdrawn / abandonedDec 2025 (project stopped here)
- Consented (not reached)
- Construction (not reached)
- Operating (not reached)
- Closed (not reached)
Request details
- Queue ID
- 2278
- Grid region
- CAISO (California)
- Utility / transmission owner
- PGAE
- Connection point (POI)
- PIERCY 115 kV
- Location
- Santa Clara County, California
- Technology
- Battery: 205 MW
- Total requested
- 205 MW
- Service type
- Network resource (NRIS)
- Study phase
- Caiso Cluster 15 Unvalidated
- Queue status
- Withdrawn
- Entered queue
- 17 April 2023
- Proposed online date
- December 2028
- Withdrawn
- December 2025
Location
Marker shows the centre of Santa Clara County; the queue data does not give exact sites.
Power plants in California · Transmission lines in California
Other requests in Santa Clara County
- Jewelflower StorageBattery storage · 355 MW · agreement signed
- Tanager StorageBattery storage · 200 MW · agreement signed
- Ajo Power BankBattery storage · 124 MW · agreement signed
- Los Esteros Critical Energy Facility ExpansionGas · 123 MW · agreement signed
- Tokay StorageBattery storage · 102 MW · agreement signed
- Hummingbird Energy StorageBattery storage · 75.0 MW · agreement signed
- Jackrabbit Power BankBattery storage · 308 MW · in study
- Kifer BESS 1Battery storage · 50.0 MW · in study
- Milpa Power BankBattery storage · 3.0 MW · in study
- DoloresBattery storage · 510 MW · withdrawn
- Ada Energy StorageBattery storage · 505 MW · withdrawn
- CreeksideBattery storage · 418 MW · withdrawn
Source: Lawrence Berkeley National Laboratory, Queued Up, data through end of 2025, compiled from ISO/RTO and utility queues. Check the grid operator's own queue for the latest status. Report a problem