Two LED streetlights illuminate a griffin sculpture at Ochoa Street and Scott Avenue in downtown Tucson. The city swapped about 23,000 streetlights and connected most to a wireless network that ...

A large crowd of El Pasoans turned out for the dedication of the Texas Street lighting project a hundred years ago on July 15, 1925.

Solar panels.You see them all around nevada, whether on rooftops or hillsides.But perhaps you haven't seen solar-powered ...