Panasonic’s Green Idea Home opened the window for MBA students toward future sustainable life style of cities and towns. Green houses are dedicated to the life style with zero CO2 emission. The design of such houses fully utilizes natural energy such as wind, heat and light. With the comprehensive coordination of the centralized intelligent controlling system, domestic electric appliances of various kinds are able to induce the most suitable load automatically and thus adjust the power amount to the minimum. The in-house lighting system also can adjust the strength of lamp light in accordance with the natural light. The host operates the central intelligent controlling system by computer and controls the electric appliances and lamps in all corners of the entire room. Compared with ordinary residential houses, the intelligent of domestic electric appliances is able to save about 80% of electric power. The insufficient amount of power may be supplemented by solar-energy electronic board on the roof and the redundant power may be used for the charge of EV automobiles or hybrid electric vehicles.