Sethuraman Panchanathan, ASU's senior vice president of the Office of Knowledge Development (left) introduces a panel of Arizona mayors to attendees of the 2012 Solar Summit at Skysong. The mayors, Scott Smith of Mesa, Georgia Lord of Goodyear, Doug Von Gausig of Clarkdale and Greg Stanton of Phoenix, discussed their cities' visions for using different forms of energy and how they are meeting the challenges of doing so.