This is a modern house consumes only 800Whr on average per day. It’s through the strategic use of ultra-efficient appliances, daylighting, and passive solar design for temperature control and ventilation. The secret of the house’s amazingly low power consumption is using solar power, the house generates 120V AC, but it’s also wired for 12V. The living room consist of three 7W 12V compact fluorescent lamps, a 12V Widescreen LCD TV, a DVD player, and an efficient surround sound stereo system. It can be used for notebook and all other computer. The office has a Mac laptop acting has a desktop, and all other computer. The Household can use the electricity tools. It’s designed with electricity is used to run only those things that really require it. Simple and efficient home.