North Gila substation

APS Completes One of the Largest Transmission Construction Projects in the West

Arizona Public Service completed work on one of the largest transmission construction projects in the west - a 500-kV power line that connects Phoenix to Yuma. The 110-mile transmission line runs from the Hassayampa substation (near the Palo Verde Nuclear Generating Station) to the North Gila substation in Yuma. Called HANG2, the $200 million project is the second route connecting the Valley to Yuma. Construction planning for the HANG2 line began more than a decade ago, as Southwest Arizona's population began to rapidly expand.