Method and system for detecting and estimating the electric power consumption of a subscriber's facilities

The method involves establishing an electric power consumption curve of subscriber electric installations e.g. water heater, including sampling consumption of effluents e.g. electric current, consumed by the installations and sampling involving in a downstream of an effluent consumption meter connected to a network connection. Identification of electrical usage and estimation of the corresponding consumption are carried out by segmentation of the consumption curve of the subscriber installations and by monitoring events in the electric consumption in a transitional system. Independent claims are also included for following : (1) a system for detecting and estimating electric power consumption of a subscriber installation (2) a computer program containing an instruction executable by a computer system or a dedicated detection and estimation system.