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United States › Grid › Interconnection queues › Arizona

BATTERY STORAGE · WEST

Battery storage project 132, Pima County

Battery storage project 132, Pima County is a 150 MW battery storage request in interconnection study in the West interconnection queue, in Pima County, Arizona, connecting to Tucson Electric Power Company.

Queue statusIn planning
  1. PlanningQueued Jul 2022 (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget Jun 2025 (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
132
Grid region
West (non-ISO utilities)
Utility / transmission owner
Tucson Electric Power Company
Connection point (POI)
Robert Bills-Wilmot 138kV Transmission Line
Location
Pima County, Arizona
Technology
Battery: 150 MW
Total requested
150 MW
Service type
Network resource (NRIS)
Queue status
Active
Entered queue
14 July 2022
Proposed online date
June 2025

Location

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

Power plants in Arizona · Transmission lines in Arizona

Other requests in Pima 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