Desert Rainbow Generation Tie-Line
The Desert Rainbow Generation Tie-Line Project (Gen-Tie Project) would interconnect the proposed Desert Rainbow Project, a photovoltaic electricity generation and battery energy storage system facility (Generation Project), to the regional transmission grid at a point of interconnection (POI) located at the existing Salt River Project (SRP) Pinal West to Jojoba 500-kilovolt (kV) transmission line.
Location
The Gen-Tie Project would originate at the Generation Project substation, located in proximity to West Riggs Road and between South 155th Avenue and South Bullard Avenue, and would interconnect into a POI along the existing SRP Pinal West to Jojoba 500-kV transmission line. See the figure below for the location of Gen-Tie Project’s route options.
Project updates
AES will be filing a Certificate of Environmental Compatibility (CEC) application before the Arizona Corporation Commission (ACC) for the Desert Rainbow Gen-Tie Project and invite you to join community meetings to discuss the project details and address any questions you may have.
Community Meetings:
Virtual
Date: October 26, 2026
Time: 12:00 PM
Location: Zoom - Register to attend the virtual community meeting
In person
The in-person meeting will be an open house format with no formal presentation, so community members are welcome to attend anytime during the meeting time at their convenience.
Date: October 26, 2026
Time: 4:30 - 6 PM
Location: Goodyear City Hall
1900 N. Civic Square, Goodyear, AZ 85395
Register to attend the in-person community meeting
Past Community Meetings:
Date: September 22, 2026
Time: 12:00 PM & 5:30 PM