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Transmission and Facility Siting - Completed Siting Projects

Completed siting projects are those projects that have been approved to move forward with construction.  Projects listed below may or may not yet be under construction.

The projects listed on this page have completed the public process. In addition, The EHV and HV projects listed on this page have completed the public process and have received approval from the Arizona Corporation Commission to move forward.

Select the projects below to review the project maps and newsletters that show the selected routes, approved corridors and facility locations.

A number of these projects contain multiple elements and have varying in-service dates. Check each project to review power lines and facilities that have been sited but that may not yet have been constructed.

Extra High Voltage (EHV) - 500kV and 345kV Transmission Lines

Palo Verde® Hub to North Gila (Palo Verde to Yuma)

Palo Verde® Hub to TS-5 (Phoenix Metro)

TS-9 to Pinnacle Peak  (Phoenix Metro)

High Voltage (HV) - 230kV and 115kV Transmission Lines

West Valley North (Phoenix Metro)

West Valley South (Phoenix Metro)

North Valley (Phoenix Metro)

Sub-Transmission - 69kV Transmission Lines

Yavapai to Paulden (Yavapai County)

North Central (Phoenix Metro)

Northeast Valley (Scottsdale / Phoenix)

Northwest Valley  (Phoenix Metro)

Vista to Copper Mountain (Casa Grande)

Wickenburg (Wickenburg)


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