Patent ID: 9008849
Filing Date: 2015-04-14
Classification: H02J,Y02B,Y02E

Abstract:
1. A household electric power system, comprising: an external system side power source; a solar electric power generation device connected to the system side power source; an energy storage device that stores the electric power generated by the solar electric power generation device as energy; and an electric control device that predicts whether voltage suppression will occur at the system side power source by comparing historical data including at least one of voltage fluctuation at the system side power source, date and time, outdoor air temperature and meteorological condition when voltage suppression occurred at the system side power source previously to present data including at least one of voltage fluctuation at the system side power source, date and time, outdoor air temperature and meteorological condition, and stores surplus power generated by the solar electric power generation device into the energy storage device if the voltage suppression is predicted to occur at the system side power source by the electric control device.