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United States › Grid › Interconnection queues › Arizona

SOLAR + STORAGE · CAISO

Mesquite Solar 6

Mesquite Solar 6 is a 309 MW solar + storage request in interconnection study in the CAISO interconnection queue, in Maricopa County, Arizona, connecting to SDGE.

Queue statusIn planning
  1. PlanningQueued Apr 2023 (current stage)
  2. Consented (not yet reached)
  3. Construction (not yet reached)
  4. OperatingTarget Apr 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
2279
Grid region
CAISO (California)
Utility / transmission owner
SDGE
Connection point (POI)
HASSAYAMPA 500 kV
Location
Maricopa County, Arizona
Technology
Solar: 155 MW · Battery: 155 MW
Total requested
309 MW
Service type
Energy only (ERIS)
Study phase
Caiso Cluster 15 Unvalidated
Queue status
Active
Entered queue
17 April 2023
Proposed online date
April 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