Disclosed herein is a charge/discharge controlling apparatus, including: a charging circuit; a discharging circuit; and a control section configured to control starting and stopping of charging into an electricity accumulating section through the charging circuit and starting and stopping of discharging from the electricity accumulating section through the discharging circuit; the charge/discharge controlling apparatus returning a response, in response to a charging starting instruction received when the electricity accumulating section is in a charging state and to a discharging starting instruction received when the electricity accumulating section is in a discharging state, representing that a process corresponding to the received instruction has been executed.