Charge and discharge control device, discharge lower limit setting device, charge and discharge control method, and recording medium

Abstract

A charge and discharge control device includes: a power consumption obtainer that obtains a power consumption of a residential complex; a power amount accumulator that stores first history information including a history of the power consumption; a power amount predictor that predicts a first power consumption of a residential complex in future; a storage battery information accumulator that stores second history information including a history of storage battery information related to charge and discharge of a storage battery included in an electric vehicle; a charge and discharge control setter that sets a discharge lower limit, the discharge lower limit indicating a remaining battery capacity at which to stop discharge performed for supplying power from the storage battery to the residential complex in the first period; and a charge and discharge planner that creates a charge and discharge plan including the discharge in the first period.