ENERGY MANAGEMENT DEVICE, ENERGY MANAGEMENT METHOD, AND ENERGY MANAGEMENT PROGRAM

摘要

An energy management system of an embodiment includes first and second registration units, first and second reception units, an aggregation unit, first and second transmission units, and a proration unit. The first registration unit registers a first energy management system as a host system configured to manage the energy management system upon a receipt of information representing permission of registration in reply to a registration request requested to the first energy management system. The second registration unit registers a second energy management system as a slave system to be managed by the energy management system upon a receipt of a registration request from the second energy management system. The first reception unit receives an amount of an energy supply and demand and an adjustable amount of an energy supply and demand, the amount of an energy supply and demand representing current power supply and demand amounts, the adjustable amount of an energy supply and demand representing an amount adjustable with respect to the current power supply and demand amounts, from each of a plurality of registered slave energy management systems. The aggregation unit aggregates the received amount of an energy supply and demand and the received adjustable amount of an energy supply and demand for each of the slave systems. The first transmission unit transmits aggregated results obtained by the aggregation unit to the registered host system. The second reception unit receives an adjustment amount of an energy supply and demand representing an adjustment amount to adjust power supply and demand calculated based on the aggregated results, from the host system. The proration unit prorates the received adjustment amount of an energy supply and demand among the plurality of slave systems. The second transmission unit transmits individual adjustment amounts of a power supply and demand prorated from the adjustment amount of an energy supply and demand, to the plurality of slave systems respectively.