Solar Roadway Prototype

Yes, in concept a solar roadway would be amazing, but I see a few problems with the idea. First, these roads could almost only be installed in countries where there is no snow and where the temperature doesn’t get too cold. Oh, the road’s surface could be heated, but wouldn’t that cost more energy than can actually be produced? Second, what happens when the pavement gets dirty? The efficiency of the pannels would then be severely affected. And what about the price of installing these things? I’m sure the people behind the idea have thought of many of these issues, but unfortunately, they’re not covered in this video, and the official website does not give much more details.