CHARGING AND DISCHARGING MANAGEMENT DEVICE

A charge and discharge management device disclosed herein includes an acquisition controller configured or programmed to acquire information on a predetermined deterioration acceleration element for on-vehicle batteries from a plurality of electric vehicles connected to an electric power system, an arithmetic controller configured or programmed to arithmetically operate deterioration acceleration element values of the plurality of electric vehicles, based on a predetermined arithmetic operation method, based on the information on the deterioration acceleration element, and a determination controller configured or programmed to control charging the plurality of electric vehicles from the electric power system or discharging the electric power system from the plurality of electric vehicles, based on the deterioration acceleration element values of the plurality of electric vehicles.