Solar Roadways Get $750,000 For Bigger Prototype; Maybe It's Not So Crazy After All

http://www.treehugger.com/cars/solar-roadways-get-750000-for-bigger-prototype-maybe-its-not-so-crazy-after-all.html
...According to Brusaw's calculations, installing solar panels in the approximately 28,000 miles of paved surfaces in the lower 48 states would generate about three times more electricity than U.S. citizens use each year....