Environmental Visionaries: The Solar Roadrunner
Highways basking in the hot sun are wasted energy. Scott Brusaw's solution? Make them out of solar panels The road ahead is paved with photovoltaics. That's how Scott Brusaw sees it, anyway. His company, Solar Roadways, is embedding PV cells and LED lights into panels engineered to withstand the forces of traffic. The lights would allow for "smart" roadways and parking lots with changeable signage, while the cells would generate enough energy to power businesses, cities and, eventually, the entire country. Each 12-by-12-foot Solar Roadway panel would produce about 7,600 watt-hours a day, based on an average of four hours of sunlight. At that rate, a one-mile stretch of four-lane highway could power about 500 homes. "If we could ever replace all the roads in the U.S., then, yeah, we would produce more electricity than we use as a nation," says Brusaw, an electrical engineer who completed his first prototype panel in...