POWER CONTROL DEVICE, POWER CONTROL METHOD, AND POWER CONTROL SYSTEM

摘要

A power control device, power control method, and power control system capable of appropriate power control so that power consumption does not exceed contract power with an electric power company even in the event of a power failure are provided. A power control device 12 installed in a consumer's facility to manage a power state of a load apparatus 18 or a dispersed power source in the consumer's facility, includes: a communicator 121 configured to acquire sensor data relating to the load apparatus 18 or the dispersed power source; a backup power source 123 that is charged with a commercial power source 50, and supplies power during a power failure; and a controller 124 configured to issue a control instruction to the dispersed power source , when the backup power source 123 supplies power.