"If it had worked, the panels would have powered a single water fountain and the lights in a restroom, after more than $500,000 in installation costs provided by a grant from the state government. The U.S. Department of Transportation initially handed $750,000 in grants to fund the research into the scheme, then invested another pair of grants worth $850,000 into it. The plan, dubbed, “Solar FREAKIN’ Roadways” raised another $2.2 million dollars in crowd-funding, even though several scientists publicly debunked the idea."
http://principia-scientific.org/americas-first-solar-roadway-total-disaster/
http://principia-scientific.org/americas-first-solar-roadway-total-disaster/