Box Canyon Solar Project started today. June 2, 2025. Via Electric District 3
(Disclosure: Rose Law Group represents BrightNight.)
By David Iverson | InMaricopa
The Box Canyon Solar Project, a 300-megawatt utility-scale solar facility near Florence, has officially begun producing electricity.
That’s according to Electric District No. 3, which is receiving 63½ megawatts of power from the new plant. It is ED3’s first utility-scale solar addition and part of a broader plan to add 100 megawatts of renewable energy by its centennial next year.
“Box Canyon Solar represents the first utility-scale solar project for our portfolio, and together with Apache Solar II, puts us on schedule to add 100 megawatts of renewable energy by our 100th anniversary in 2026,” Leslie O’Hare, a digital content specialist with ED3, said today.
Developed by BrightNight and Cordelio Power, Box Canyon will ultimately supply clean power to 25 utilities under the Southwest Public Power Agency, serving more than 77,000 Arizona homes. For its part, ED3 will generate an estimated 185,000 megawatt-hours annually, or enough energy to power 16,000 Maricopa homes.





