Stationary Portable Power Plant-1+ Power Wall 8000, and you will never be without electricity. The power plant will provide you with uninterrupted operation of household appliances, medical devices, etc. Natural disasters occur or you live in remote areas where there are no power lines. SPPP-1+ PW8000 is one solution for all your energy needs. The home energy system is designed to be scalable, and excess energy can be sold to the grid.