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United States › Grid › Interconnection queues › Arizona

BATTERY STORAGE · WEST

Battery storage project Q584, Pinal County

Battery storage project Q584, Pinal County is a 350 MW battery storage request in interconnection study in the West interconnection queue, in Pinal County, Arizona, connecting to Arizona Public Service.

Queue statusIn planning
  1. PlanningQueued May 2025 (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
Q584
Grid region
West (non-ISO utilities)
Utility / transmission owner
Arizona Public Service
Connection point (POI)
230 kV Bianco Substation
Location
Pinal County, Arizona
Technology
Battery: 350 MW
Total requested
350 MW
Service type
Energy only (ERIS)
Study phase
Phase 1 Cluster Study
Queue status
Active
Entered queue
7 May 2025
Proposed online date
June 2029

Location

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

Power plants in Arizona · Transmission lines in Arizona

Other requests in Pinal 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