Energy Management System, including Demand Side Management, are contributing to energy saving. However, power demand for home consumers, unlike large power consumers, is considered difficult to control each electric device because these power demands depend on consumer's behavior. Therefore, predicting power demand eagerly requested. KNIVES (Keio University Network oriented Intelligent and Versatile Energy saving System) is an ICT based demand side management system and controls electric power by using distributed and cooperative power control algorithm. We propose a management system for households with a smart circuit breaker box, which can measure power consumption of each outlet and enables integrated control by using KNIVES. In addition, I propose prediction method of demand power in a household by using proposed system.