An air conditioning system includes an air conditioner run by electric power, a storage battery, a demand receiver, an air-conditioning controller and a control selector. The storage battery charges electric power and supplies stored electric power to the air conditioner. The demand receiver receives a demand pertaining to a power consumption of the air conditioner during a predetermined period. The air-conditioning controller performs air-conditioning restriction control, which is preset when there is a need to restrict operation of the air conditioner in order to satisfy the demand, even when electric power is supplied from the storage battery to the air conditioner in the predetermined period. The control selector enables selection of the air-conditioning restriction control from among a plurality of control patterns.