Energy management system and method and repeater for energy management system

A repeater for an energy management system, comprising:

• a first storage module configured to periodically receive information on an amount of energy consumption from a meter through a first communication network and stores the received information;
• a second storage module configured to receive information on an energy pricing system from a central management server through a second communication network and store the received information;
• and
• a control component configured to analyze an energy consumption rate of an individual user based on the information on the energy pricing system, and transmit information on the analyzed energy consumption rate of the individual user to the meter and the central management server respectively through the first and second communication networks.

An energy management method, comprising:

• receiving information on an amount of energy consumption from a meter through a first communication network and storing the received information;
• receiving information on an energy pricing system from a central management server through a second communication network and storing the received information;
• analyzing an energy consumption rate of an individual user;
• and
• transmitting information on the analyzed energy consumption rate of the individual user to the central management server through the second communication network.

An energy management method, comprising:

• receiving, by a repeater, receiving information on an amount of energy consumption from a meter through a first communication network and storing the received information in a storage medium;
• receiving, by the repeater, receiving information on an energy pricing system from a central management server through a second communication network and storing the received information in the storage medium;
• analyzing, by the repeater, analyzing an energy consumption rate of an individual user and storing the analyzed energy consumption rate in the storage medium;
• receiving, by the repeater, a request of the information on the energy consumption rate of the individual user from the meter through the first communication network;
• examining, by the repeater, examining whether or not the requested information on the energy consumption rate of the individual user exists in the storage medium;
• transmitting, by the repeater, the corresponding information to the meter when the corresponding information exists in the storage medium as the examined result;
• and
• receiving, by the repeater, the corresponding information by requesting the central management server of the corresponding information when the corresponding information does not exists in the storage medium as the examined result, and then transmitting the corresponding information to the meter.