Irvington East Loop Transmission Line Update

Tucson Electric Power is developing plans for a new transmission line to help serve growing energy needs. The project would help Davis-Monthan Air Force Base satisfy its energy resiliency requirements and improve electric reliability for customers in Tucson.

TEP must determine a route for the Irvington-East Loop 138 Kilovolt Transmission Line, which will connect the Irvington Substation to the East Loop Substation. The line also must interconnect with the planned Port and Patriot substations. TEP has identified potential routes within a revised, expanded study area.

The company invites residents, property owners and other stakeholders to ask questions, submit comments and learn more about the project. TEP will use public input to identify three alternative transmission line routes that will be included in its application for approval to build the transmission line.

For more information, please visit