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United States › Grid › Interconnection queues › Arizona

BATTERY STORAGE · WEST

Battery storage project Q479, Maricopa County

Battery storage project Q479, Maricopa County is a 165 MW battery storage request in interconnection study in the West interconnection queue, in Maricopa County, Arizona, connecting to Arizona Public Service.

Queue statusIn planning
  1. PlanningQueued Sep 2022 (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget May 2028 (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
Q479
Grid region
West (non-ISO utilities)
Utility / transmission owner
Arizona Public Service
Connection point (POI)
Perryville 69kV Substation
Location
Maricopa County, Arizona
Technology
Battery: 165 MW
Total requested
165 MW
Service type
Energy only (ERIS)
Study phase
Transitional Cluster: Cluster Study (Phase 2 - Results Meeting)
Queue status
Active
Entered queue
27 September 2022
Proposed online date
May 2028

Location

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

Power plants in Arizona · Transmission lines in Arizona

Other requests in Maricopa 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