A charge/discharge management device is provided in power generation equipment including a power generation system in which generated power fluctuates and a storage battery system and connected to a power system. The power generation system includes a power meter that detects the generated power. The storage battery system includes a storage battery, a battery management unit that monitors a state of the storage battery, and a power conditioning system. The charge/discharge management device includes a charge/discharge command unit that determines charge/discharge commands for the power conditioning system on the basis of the generated power detected by the power meter and storage battery information supplied from the battery management unit, such that a system supply power change rate is within a fluctuation range of ±n %, and an SoC of the storage battery approaches an SoC target value.