This sustainable concept has been created for existing footbridges in Beijing but it is just as well to apply for any new structures in any site. With only one rectangular shape of PV panel, over 80 specific designs have been created for different urban areas of the city. The electricity harvested from the sun can be used on site for lighting, elevators or escalators. E-car and e-bike charging stations under the foot bridges utilize the locally generated solar energy directly on site.