A consumer electric power control system includes a consumer data storage unit, a consumer daily data creation unit, an electric power instruction value acquisition unit, an electric power reduction scenario creation unit, a consumer data prediction unit, a condition change indicator calculation unit configured to calculate a plurality of condition change indicators for a plurality of electric power reduction scenarios, each of the plurality of condition change indicators representing a degree of difference in tendency between consumer prediction data and consumer daily data, an equipment operation determination unit configured to determine one of the plurality of electric power reduction scenarios based on the plurality of condition change indicators and determine an equipment operation pattern based on the determined one electric power reduction scenario; and an equipment operation control unit configured to control various types of equipment based on the determined equipment operation pattern.