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BATTERY STORAGE · WESTBattery storage project S0027, Walla Walla County
Battery storage project S0027, Walla Walla County is a 210 MW battery storage request in interconnection study in the West interconnection queue, in Walla Walla County, Washington, connecting to PacifiCorp.
- PlanningQueued Feb 2024 (current stage)
- Consented (not yet reached)
- Construction (not yet reached)
- OperatingTarget Jun 2026 (not yet reached)
- Closed (not yet reached)
Studies assess what grid upgrades the project would need and who pays for them. A signed interconnection agreement is the main step before construction.
Request details
- Queue ID
- S0027
- Grid region
- West (non-ISO utilities)
- Utility / transmission owner
- PacifiCorp
- Connection point (POI)
- Wallula substation
- Location
- Walla Walla County, Washington
- Technology
- Battery: 210 MW
- Total requested
- 210 MW
- Service type
- Energy only (ERIS)
- Study phase
- In Progress (unknown study)
- Queue status
- Active
- Entered queue
- 8 February 2024
- Proposed online date
- June 2026
Location
Marker shows the centre of Walla Walla County; the queue data does not give exact sites.
Power plants in Washington · Transmission lines in Washington
Other requests in Walla Walla County
- Other project G0924, Walla Walla CountyOther · 300 MW · in study
- Other project G0925, Walla Walla CountyOther · 300 MW · in study
- Other project G0923, Walla Walla CountyOther · 300 MW · in study
- Solar project G0935, Walla Walla CountySolar · 225 MW · in study
- Hydro project G0535, Walla Walla CountyHydro · 210 MW · in study
- Onshore wind project G0671, Walla Walla CountyOnshore wind · 200 MW · in study
- Onshore wind project T2-022, Walla Walla CountyOnshore wind · 100 MW · in study
- Onshore wind project 1, Walla Walla CountyOnshore wind · 210 MW · built
- Onshore wind project 16, Walla Walla CountyOnshore wind · 98.9 MW · built
- City of Walla Walla Mill Creek HydroelectricHydro · 3.0 MW · built
- Gas project G0281, Walla Walla CountyGas · 760 MW · withdrawn
- Solar + storage project 111, Walla Walla CountySolar + storage · 560 MW · withdrawn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