Two properties are claiming firsts in golf car technology this week. Greenhorn Creek Golf Resort in Angel Camp, Calif., is the first golf course in the U.S. to provide solar-powered phone charging by mounting ultra-slim solar panels on top of golf cars. On July 27, Windy Knoll Golf Club in Springfield, Ohio will debut the first two models of Neoteric Golf’s Signature Series Hovercraft Golf Carts for use in special events.