A communication apparatus is disclosed. A home appliance includes a driving unit to drive a component of the home appliance, a controller configured to control the driving unit, a display to display a network connection related indicator and a smart grid related indicator, and a communication unit to connect to an access point apparatus, the communication unit to connect to a server via the connected access point apparatus, and the communication unit to receive a power information signal from the server, wherein the controller to control operation of the driving unit based on the received power information signal. Accordingly, it is possible to conveniently recognize a smart grid mode.