The 2-kilometer stretch of road is located in Jinan, China. It opened to traffic on December 28. The road is paved with “transparent concrete”.  As sunlight passes through, photovoltaic panels underneath convert it to energy. Developers say it can generate enough electricity in a year to power 800 homes. The developer’s next goal for this road is to turn it into a wireless charger  powering the electric vehicles driving above it. China is already leading the world in solar power production.