Automatically controlling air conditioner by gathering data of room temperature and electric consumption of a cubicle can suppress peak power(*1), energy consumption and cut down electric charges. PRO pack is low price because we totally perform producing, construction and maintenance. Therefore, the initial investment can be quickly recouped. PRO pack is the only one installation that can totally control peak power of the same company's dealers, offices and factories in distant places. (*1)Peak power is the temporally highest electricity value at noon and an electric charge depends on it.