Roads do two things well: Carry cars, and soak up sun. What if, instead of just getting really hot, roads could generate electricity with that sunlight? That’s exactly what Solar Roadways—and now, the Department of Energy—has in mind. Solar Roadways, a single-purpose startup, just snagged a $100,000 grant from the DoE to design and build a 12-by-12-foot super-tough solar panel, intended to be laid
