Another new source of energy was found recently. You can just walk on this tiles to power charging stations and street lights.
The EnGo planet smart street lights are powered by the sun and your footsteps. The solar panel is situated above harvest solar energy. While the tiles is located below the harvested kinetic energy from your footsteps. It generates 8 watts with every step.
Besides, the LED street lights are also equipped with free WIFI and free charging stations from your mobile phone. The poles can also collect real time data such as temperature, air quality and humidity that can provide light & electricity from your own energy according to time.