In addition, every Solar Road panel has its own microprocessor and energy management system, so if one gives out, the rest are not borked. Materials-wise, the top layer is described as translucent and high-strength. Inhabitat says it's glass, which seems odd, especially since Solar Roadways claims the surface provides excellent traction. The base layer under the solar panel routes the power, as well as data utilities (TV, phone, Internet) to homes and power companies.