Determining energy usage of a residence based on current monitoring

摘要

Systems and methods include determining energy usage of a residence from a current that flows through a first main conductor and a second main conductor that transport the current into the residence. Embodiments of the present disclosure relate to sensors (130a-b) that monitor magnetic fields (150a-b) generated by the first and second main conductors (120a-b). After a resistive load (210a-b) is added for an electrical path in the residence, the first and second magnetic fields (150a-b) may be converted to generate first and second calibrating currents. A first prototype current is corrected to eliminate the influence of the second magnetic field (150b) onto the first magnetic field (150a) and a second prototype current is corrected to eliminate the influence of the first magnetic field (150a) onto the second magnetic field (150b). The energy usage of the residence is determined from the corrected currents.