SYSTEM AND METHOD FOR STORING ELECTRIC ENERGY, SYSTEM FOR SUPPLYING POWER FOR CHARGING AN ELECTRIC VEHICLE, AND METHOD AND SYSTEM FOR PAYMENT FOR POWER FOR CHARGING AN ELECTRIC VEHICLE

摘要

Provided is a system for storing electric energy, comprising: wiring for supplying power to an electric railcar; and an energy storing unit connected to and capable of receiving and storing electric energy from the wiring, wherein the supply of the electric energy from the wiring to the energy storing unit is blocked when an operation time interval between electric rail cars is shorter than a predetermined time interval.