San Luis Rio Colorado Project 

The proposed transmission line would originate at the San Luis Rio Colorado (SLRC) Power Center, interconnect with Western's existing Gila Substation, and continue to Arizona Public Service Company’s (APS’) North Gila Substation. The Proposed Project would require an expansion of Gila Substation and additional equipment at North Gila Substation; all of the proposed transmission components would be located in Yuma County, Arizona. Depending on the route ultimately selected, the total length of the 500-kV transmission system within the United States would be approximately 25.7 miles—21 miles from the United States-Mexico border to Gila Substation and 4.7 miles from Gila Substation to North Gila Substation