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Power line siting projects
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Here’s a look at the current siting projects, as well as some completed siting projects. As you’ll see, providing reliable and affordable energy across the state keeps Arizona powered.
Current Siting Projects
Runway 230kV
Improve reliability and increase the ability to serve continuing economic growth in the West Valley.
Proving Ground Solar and Storage 500kV Interconnect
Interconnect the Proving Ground Solar and Storage power plant site to the Hoodoo Wash Switchyard.
Completed Siting Projects
Biscuit Flats Project
Improve reliability and increase the ability to serve new growth in the North Phoenix area.
North Gila to Orchard to Yucca
Improve electrical capacity and reliability in the Yuma area; may potentially accommodate the development of renewable energy projects in the region.
Perryville to Valencia
Connect the Perryville Substation to the Valencia Substation, ensuring a reliable power source for the future.
Sundance to Pinal Central
Increase electrical capacity and improve the reliability in the area.
Three Rivers 230kV
Connect new power lines and substation into an existing 230kV transmission line.
Hoodoo Wash 500kV Interconnection
Interconnect the McFarland Solar power plant site to the Hoodoo Wash Switchyard
West Valley Central 230kV Connection Project
Improve reliability and increase the ability to serve new growth in the West Valley area.
Westwing 230kV Interconnection Project
Interconnect separate customer proposed battery electrical storage projects to the existing Westwing Substation.
Freedom to Willis 69kV
Improve reliability and strengthen the regional electrical system.
Cyclone/Wildcat
Connect two new customer-driven projects into the existing 230kV transmission line.
Frequently Asked Questions about Projects
Learn more about power and reliability updates, plus relevant resources to answer your questions.
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