Cottonwood Substation

TEP plans to build a new 138 kilovolt (kV) substation and upgrade existing facilities in the City of Tucson to strengthen electric reliability for customers and meet growing electric demand in southwest Tucson.

Through long-term planning studies, the company has determined that new infrastructure will be required to support residential and commercial development in the area. TEP will install these improvements in two phases.

The Cottonwood Substation will connect to TEP’s existing 138 kV transmission system and help improve reliability for customers in the area by reducing the stress placed on existing circuits currently supported by the Midvale, Santa Cruz and Shannon substations. These upgrades also are designed to support nearby commercial development.

If you have any questions, please contact TEP Land Resources Environmental & Land Use Planner Brian Pugh at 520-460-6417.