Abstract: A stored power production source management device of an embodiment includes an acquisition unit, a power storage management unit, and a discharging management unit. The acquisition unit acquires first information indicating a power supply source when a power storage is charged. The power storage management unit stores information indicating a power supply source for power stored in the power storage in a data storage in association with an amount of stored power on the basis of the first information. The discharging management unit specifies a power supply source for the power to be discharged on the basis of information indicating the power supply source stored in the data storage when the power storage is discharged, and subtracts the amount of power to be discharged from the amount of power corresponding to the specified power supply source in the data storage.

Abstract: There are provided: a demand forecasting section that calculates a demand forecast value of the power system as a whole; a supply planning section that calculates a planned supply value of the power system as a whole; a difference extraction section that finds the difference between said demand forecast value and planned supply value; an economic load allocation section of a distribution system that allocates the difference obtained by the difference extraction section with respect to control subjects provided in the distribution system, in accordance with a cost optimization technique; and a control section that outputs control amounts based on the allocated amounts obtained by the economic load allocation section of said distribution system to the control subjects.