Method and apparatus for charging/discharging electric vehicle

A method for charging/discharging an electric vehicle includes receiving one or more power grid codes and information on a charging/discharging fee rate policy corresponding to each of the one or more power grid codes, determining a charging/discharging schedule based on the received charging/discharging fee rate policy, and performing a charging/discharging for the elective vehicle with a charging station based on the determined charging/discharging schedule.