To provide a maximum demanded electric power control system that can automatically change a set point of a demand controller.
This maximum demanded electric power control system 1 is provided with a switch 11 connected to a wiring not shown in a figure, a group of school-side facilities 21 and a group of air conditioners 22, which are connected to down stream than the switch 11 and main apparatus to which electric power is supplied, a total electric power integration device 14 that stores maximum demanded electric power of the group of the school-side facilities 21 and the group of the air conditioners 22, a school-side electric power integration device 15 that stores the school-side maximum demanded electric power of the group of the school-side facilities 21, the demand controller 16 that judges whether or not the electric power used in the group of the air conditioners 22 has proper capacity, and a demand controller controlling device 17 that outputs the set point of the demand controller 16.
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