| 摘要 |
The cause of inconvenience to users for a long time is avoided during demand control. For each of the electric apparatuses belonging to an electric apparatus combination that was created by an apparatus calculation unit 102 extracting one or more electric apparatuses according to a target power-saving amount calculated by a target power-saving amount calculation unit 101, a demand control information creation unit 103 creates demand control information including a predetermined power corresponding to the target power-saving amount and a predetermined time of operating at this power. A demand request creation unit 104 creates a demand request which is a signal which requests operation based on the demand control information for the apparatuses in the combination. When the abovementioned predetermined time elapses, the apparatus calculation unit 102 extracts at least one or more apparatuses other than the apparatuses which are currently extracted and additionally creates a new combination that is different from the current combination according to predetermined rules, and a communication unit 110 sends the demand control information to the apparatus extracted by the apparatus calculation unit 102.
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