If solar power is to go mainstream, it wouldn’t hurt to win over Nascar fans. The first step may be taking place in Pennsylvania, where owners of the Pocono Raceway are committed to spending $15-$17 million to install the largest solar farm in the state to provide power to the track’s facilities. About 40,000 photovoltaic panels will be installed on 25 acres across the street from Pocono on property once used for a parking lot by fans attending Nascar Sprint Cup races. Once completed in 2010 the solar farm will be the largest of its kind at any sports facility in the world, and track owners expect to make money off it by selling excess power to local utility companies.