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Nonintrusive appliance load monitoring

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1 Author(s)
Hart, G.W. ; Dept. of Electr. Eng., Columbia Univ., New York, NY, USA

A nonintrusive appliance load monitor that determines the energy consumption of individual appliances turning on and off in an electric load, based on detailed analysis of the current and voltage of the total load, as measured at the interface to the power source is described. The theory and current practice of nonintrusive appliance load monitoring are discussed, including goals, applications, load models, appliance signatures, algorithms, prototypes field-test results, current research directions, and the advantages and disadvantages of this approach relative to intrusive monitoring

Published in:

Proceedings of the IEEE  (Volume:80 ,  Issue: 12 )