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United States › Grid › Interconnection queues › Washington

BATTERY STORAGE · WEST

Battery storage project 124, Pierce County

Battery storage project 124, Pierce County is a 85.0 MW battery storage request suspended in the West interconnection queue, in Pierce County, Washington, connecting to Puget Sound Energy.

Queue statusPaused / redesign
  1. PlanningQueued Aug 2021 (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget Jun 2029 (not yet reached)
  5. 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
124
Grid region
West (non-ISO utilities)
Utility / transmission owner
Puget Sound Energy
Connection point (POI)
Frederickson 115 kV Substation
Location
Pierce County, Washington
Technology
Battery: 85.0 MW
Total requested
85.0 MW
Service type
Network resource (NRIS)
Study phase
Suspended LGIA
Queue status
Suspended
Entered queue
27 August 2021
Proposed online date
June 2029

Location

Marker shows the centre of Pierce County; the queue data does not give exact sites.

Power plants in Washington · Transmission lines in Washington

Other requests in Pierce County

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