Power disaggregation of domestic smart meter readings using dynamic time warping

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

24 Citations (Scopus)
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Non-intrusive appliance load monitoring (NALM), also called load disaggregation, is a method for isolating the energy consumption of individual appliances from an overall household energy consumption. Traditionally, NALM techniques are based on measuring several electrical parameters at high sampling rates, which increases the meter cost and communications and storage overhead. In this paper, we propose a low-complexity disaggregation method based on Dynamic Time Warping algorithm that uses only active power
aggregate smart meter data, captured at a low frequency, for training and disaggregation . Experimental results are provided
for three households using data collected during two months, showing which individual appliances were used and when. Average recognition accuracy of 85% was obtained.
Original languageEnglish
Title of host publication6th International Symposium on Communications, Control and Signal Processing (ISCCSP), 2014
Number of pages4
Publication statusPublished - May 2014


  • smart meter
  • dynamic time warping
  • disaggregation
  • load signature


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