An electronic device can include: a communication unit; a display unit for display contents; and a controller configured to: display a user interface for querying whether to continuously display the contents or stop a display of the contents on the display unit, when the electronic device enters a high rate time slot determined based on electricity rate information received through the communication unit, receive an input for stopping the display of the contents through the user interface, and output a power ON signal and source information of the contents to a replacement electronic device.