Control device

A control device for controlling charging and discharging of a plurality of power storage systems each of which is capable of being charged by a power grid and discharging power to the power grid, the control device comprising:

• an acquisition unit configured to acquire an intention to participate in a demand response (DR) for adjusting a power supply and demand balance in the power grid from a plurality of consumers respectively holding or using the plurality of power storage systems when the DR is contracted in a power transaction;
• a resource ensuring unit configured to ensure, from the power storage systems of the plurality of consumers indicating the intention, a power resource that the power storage systems are able to supply to the power grid during an execution period of the DR;
• a charging and discharging plan formulating unit configured to adjust a charging state of each of the power storage systems during a preliminarily controllable period that is a predetermined period before a start of the DR and formulate a charging and discharging plan for increasing the power resource that is able to be supplied during the execution period of the DR;
• and
• a communication unit configured to transmit the charging and discharging plan formulated by the charging and discharging plan formulating unit to the power storage system.