POWER MANAGEMENT APPARATUS, POWER MANAGEMENT SYSTEM, POWER MANAGEMENT METHOD, AND NON-TRANSITORY STORAGE MEDIUM

The present invention provides a power management apparatus () including a request acquisition unit () that acquires a power consumption request specifying a power amount to be consumed, a time period during which power is consumed, and a power sales price P, a consumer information acquisition unit () that acquires consumer information including a power sales price for each time period of a power retailer selling power to each of a plurality of power consumers and specification information of a power storage system of each of the plurality of power consumers, and a determination unit () that determines a charging and discharging schedule of the power storage system of each power consumer on the basis of the consumer information and the power consumption request.