POWER SYSTEM STABILIZATION SYSTEM

A system stabilization system for suppressing a power fluctuation in a power system, the system stabilization system including: a power storage apparatus configured to suppressing a power fluctuation in the power system by either charging or discharging in response to a control; a capacitor apparatus configured to suppress a power fluctuation in the power system by making the charge/discharge response to control faster than the power storage apparatus and charging or discharging in response to the control; and a control apparatus configured to control the power storage apparatus and the capacitor apparatus so as to reduce occurrences of charging or discharging in the power storage apparatus.