Solar Socket: Portable Plug-In Creates Free Energy to Go - A suction cup lets you stick the converter to any flat glazed surface, putting photovoltaic panels on the outside and a customary energy outlet on the other. And if you are worried about what happens at night or in overcast conditions: the device itself can store energy for in-place or mobile use. Energy Use, Solar Energy, Solar Power, Types Of Renewable Energy, Portable Power Generator, Coral Bleaching, Solar Car, Electricity Bill, Help The Environment