An energy saving method, particularly for buildings, characterized in that it comprises the steps of : - checking (1) for the Internet availability of an electric power supply control unit; - checking (2) for the availability of an ERP presence management system; - checking (8) for the availability of history and self-learning data; - reading (11) the configuration of the setup parameters; - initializing (12) a check timer; - adjusting the lighting and the electrical consumers (algorithm 1); - adjusting the temperature (algorithm 2); - storing (15) the system variables; - checking (16) that the check timer has been triggered.