Arizona Electric Power Cooperative, Inc. (AEPCO) and Tucson Electric Power (TEP) are planning new electrical infrastructure to serve the town of Marana, Arizona and the surrounding area.

The Saguaro to Marana Project planning process is being conducted for AEPCO to construct a new 115 kilovolt (kV) transmission line between the planned Trico Electric Cooperative Inc. Adonis Substation and the existing Marana Substation. The Project will connect to the existing Saguaro Substation located approximately 7 miles northwest of Marana using an existing transmission line. TEP has identified the need for a new 138kV substation within the town of Marana. TEP will need a 138kV transmission line to provide power to this substation.

The Project will increase electric reliability and serve customers’ growing energy needs, as well as add transmission
capacity to support the development of future energy generation projects.