Solar panels will be set on ballasts atop a capped landfill that served as a sludge disposal site for the former AC Lawrence ...

It’s disappointing that California would let an important solar bill languish,” writes The California McClatchy.

A new solar-plus-storage system planned for Cochise County will help Tucson Electric Power provide more clean energy when the sun goes down. Winchester Solar, located about 18 miles west of Willcox, ...

Farmer Bir Virk tapped the iPad mounted beside his tractor's steering wheel and switched the vehicle to automatic mode. The machine moved forward and began harvesting potatoes on its own in the fields ...