CHARGE-DISCHARGE MANAGEMENT SYSTEM

A charge-discharge management system according to the present disclosure includes a plurality of electric vehicles each having a storage battery, a charge-discharge facility that charges and discharges the storage batteries, and a charge-discharge management device that controls charging and discharging actions of the charge-discharge facility. Each electric vehicle is configured to be able to exchange electricity of the storage battery with another electric vehicle through the charge-discharge facility. The charge-discharge management device switches, according to an electricity buying price, a charging action of the storage batteries between an action of charging the storage batteries by the charge-discharge facility and an action of charging the storage batteries by exchanging electricity of the storage batteries between the electric vehicles.