Photo - In this May 2014, photo provided by Solar Roadways, Scott Brusaw drives a tractor on a prototype solar-panel parking area at his company's business in Sandpoint, Idaho. Brusaw's idea for solar-powered roads has gone viral and raised more than $1.4 million in crowdsourced funding. Brusaw is proposing to pave driveways, parking lots, bike trails and, eventually, highways with hexagon-shaped solar panels that will produce electricity and could even propel electric cars. (AP Photo/Solar Roadways)
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