A control system for connecting a plurality of points in which an air conditioner (5, 7, 8), an illumination device, and an electric device are installed in a network, the system comprising: a plurality of power measuring devices (151, 152, 153, 154) measuring independent power consumption amounts with the air conditioner (5, 7, 8), the illumination device, and the electric device installed in one point, respectively; a point controller connected to the power measuring devices (151, 152, 153, 154) for collecting and managing power amount information with respect to the point; and a central server (1, 200) connected to the point controller for storing power amount information by points received from the point controller, computing power fees with respect to respective points to compute statistic data with the power amount information by points and corresponding power fees, and transmitting the statistic data to the point controller, wherein the point controller stores power consumption data measured and received from power measuring devices (151, 152, 153, 154), control data for each device and operation state data, and manages energy consumption while changing or maintaining operation setting with respect to the air conditioner (5, 7, 8), the illumination device, and the electric device in the point, the control system being characterised in that the point controller accesses the central server (1, 200) through an ID serving as an account of the point to receive control data with respect to a corresponding point and a control recording, and inputs fee calculation information of a current point through connecting the central server (1, 200), wherein the data received from the central server (1, 200) are restrictively displayed on the point controller according to authority set to the ID, together with an account ID, wherein the fee calculation information includes application of power use, application power, presence of invalid power meter, power factor, and receiving voltage information, and wherein the central server (1, 200) computes different fees by points with respect to the power amount corresponding to the fee calculation information received from point controllers, and transmits data of a point corresponding to a connection account, with respect to connection of a terminal. a plurality of power measuring devices (151, 152, 153, 154) measuring independent power consumption amounts with the air conditioner (5, 7, 8), the illumination device, and the electric device installed in one point, respectively; a point controller connected to the power measuring devices (151, 152, 153, 154) for collecting and managing power amount information with respect to the point; and a central server (1, 200) connected to the point controller for storing power amount information by points received from the point controller, computing power fees with respect to respective points to compute statistic data with the power amount information by points and corresponding power fees, and transmitting the statistic data to the point controller, wherein the point controller stores power consumption data measured and received from power measuring devices (151, 152, 153, 154), control data for each device and operation state data, and manages energy consumption while changing or maintaining operation setting with respect to the air conditioner (5, 7, 8), the illumination device, and the electric device in the point, the control system being characterised in that the point controller accesses the central server (1, 200) through an ID serving as an account of the point to receive control data with respect to a corresponding point and a control recording, and inputs fee calculation information of a current point through connecting the central server (1, 200), wherein the data received from the central server (1, 200) are restrictively displayed on the point controller according to authority set to the ID, together with an account ID, wherein the fee calculation information includes application of power use, application power, presence of invalid power meter, power factor, and receiving voltage information, and wherein the central server (1, 200) computes different fees by points with respect to the power amount corresponding to the fee calculation information received from point controllers, and transmits data of a point corresponding to a connection account, with respect to connection of a terminal.