The Transmission Infrastructure Program Electrical District 5 – Palo Verde Hub project in Arizona’s Pinal and Maricopa counties reached a major
construction milestone recently with the completion of 22 miles of new 230-kilovolt transmission lines between ED-5 substation and Test Track substation.
The new segment of transmission line represents half of all new construction and line upgrades required for the project, which will increase transmission capacity to deliver renewable energy, primarily solar, to consumers in Arizona, southern Nevada and southern California.
Construction was completed three weeks ahead of schedule, saving Western and the project proponent money and keeping the project on track for early 2015 energization.
The next step in the project is to expand Test Track substation to accomodate the increased transmission capacity. At the same time, the other half of transmission line upgrades will continue through early 2014.