Patent ID: 8330415

Claim:
A charge/discharge control apparatus for monitoring and controlling a charging of one or more electric power installations, comprising: a memory unit that: receives, out of charge/discharge reward information which specifies rewards which are set by region for each prescribed time zone such that a user of the electric power installation can enjoy a reward by performing an action of the charging to the electric power installation and restrictions which are set by region for each prescribed time zone on conducting the charging of the electric power installation, at least a reward and a restriction in a region corresponding to a charging position where a charging is conducted, from an external computer, and memorizes the at least the reward and the restriction, together with individual identification information for identifying the charge/discharge control apparatus itself; and a control unit that provides controls of: creating a charge/discharge plan covering from a start to an end of a charging of an electric power installation by a user, based on the charge/discharge reward information, such that the reward is maximized, according to the region corresponding to the charging position, the restriction according to the region corresponding to the charging position is satisfied, and the charging is completed before a usage start time of the electric power installation by the user, instructing the electric power installation to start or finish a charging according to the created charge/discharge plan, monitoring the charging conducted to the electric power installation, and transmitting results of the charging including contents of the conducted charging and the individual identification information, to the external computer.