Network system

A component for a network system comprising:

• an appliance capable of communicating with a home area network and capable of consuming an energy generated from an energy generation unit of a utility area network;
• and
• a communication module to allow communication between the appliance and an external component constituting the utility area network or the home area network,
• wherein the appliance comprises:
• a case;
• a panel receiving part bent from a front part of the case rearward;
• a control panel installed on the panel receiving part and including an enclosure and a display unit provided at a front of the enclosure to display an operation status of the appliance;
• a printed circuit board (PCB) disposed inside the enclosure of the control panel and installed at a back surface of the front of the enclosure to control an operation of the control panel;
• and
• a coupling port provided at the printed circuit board or the communication module,
• wherein the communication module is coupled to a surface of the printed circuit board through the coupling part such that a power is supplied to the printed circuit board via the communication module.