Sharp Corp announced Oct 26, 2016, that it has developed the "Solar Charging Stand," an outdoor chair equipped with a solar panel, rechargeable battery, etc.
It is possible to charge a mobile device (e.g. smartphone) via a USB port on the rear side of the seat while sitting on the chair and drinking coffee, etc.
Sharp was selected as an installer for the "Project for the Promotion of City Charge," with which Tokyo Environmental Public Service Corp is going forward for promoting the use of renewable energy. And, through Tokyo Environmental Public Service Corp, the chair will start to be installed at three coffee shops in Tokyo in late October 2016
The Solar Charging Stand chair has a compound semiconductor solar panel on the rear side of the backrest. The panel is also used for artificial satellites, etc and has an conversion efficiency as high as about 30%. It can effectively generate electricity when installed outdoors such as on the terrace of a restaurant.
A rechargeable battery is embedded in the bottom side of the seat. Solar electricity is stored in the battery so that a mobile device can be charged even when there is not enough sunlight. The Solar Charging Stand can be easily moved because it has the shape of a chair.
Sharp was also selected as an installer for the same project of Tokyo Environmental Public Service Corp in 2015. At that time, Sharp installed solar-powered chargers near Tokyo Tower as the first "City Charge" in Japan, and they were used by travelers, etc.