Electric vehicles in the United States save money on fuel and are less polluting than most gasoline-powered vehicles, even in places where electricity is made by burning coal, the Union of Concerned Scientists said in a report released on Monday. \"Drivers should feel confident that owning an electric vehicle is a good choice for reducing global warming pollution, cutting fuel costs, and slashing oil consumption,\" said Don Anair, a senior engineer on UCS\'s clean vehicles program. UCS said the study is the first to analyze emissions from vehicles charged on a power grid of electricity made from fuels such as coal and natural gas. According to the report, written by Anair, owners of electric vehicles can save $750 to $1,200 a year based on 11,000 miles of driving, compared to drivers of a gasoline-powered vehicle that gets 27 miles per gallon at $3.50 per gallon. For every 50 cent rise in the price of a gallon of gasoline, an EV driver can save an extra $200 annually, the report said.