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United States › Grid › Interconnection queues › Arizona

BATTERY STORAGE · WEST

Battery storage project Q299, Maricopa County

Battery storage project Q299, Maricopa County is a 150 MW battery storage request with a signed interconnection agreement in the West interconnection queue, in Maricopa County, Arizona, connecting to Arizona Public Service.

Queue statusConsented
  1. PlanningQueued Mar 2019 (completed)
  2. Consented (current stage)
  3. Construction (not yet reached)
  4. OperatingTarget Oct 2023 (not yet reached)
  5. Closed (not yet reached)

Request details

Queue ID
Q299
Grid region
West (non-ISO utilities)
Utility / transmission owner
Arizona Public Service
Connection point (POI)
Westwing 69kV Substation
Location
Maricopa County, Arizona
Technology
Battery: 150 MW
Total requested
150 MW
Service type
Network resource (NRIS)
Study phase
In Design
Queue status
Active
Entered queue
29 March 2019
Proposed online date
October 2023

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