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. 2015 Mar 31;2:150007. doi: 10.1038/sdata.2015.7

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Copyright © 2015, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0 Metadata associated with this Data Descriptor is available at http://www.nature.com/sdata/ and is released under the CC0 waiver to maximize reuse.

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The system has three major components: 1) the data logging PC; 2) the sound card power meter and 3) the ‘RFM EDF Ecomanager’ which uses a Nanode to communicate over the air with a set of individual appliance monitors (IAMs) and current transformer (CT) sensors. On the left is the circuit diagram for interfacing a sound card to a CT clamp and AC-AC adaptor to measure mains current and voltage, respectively. The circuit was adapted from Robert Wall's work³¹. Each diode is a 1N5282 (1.3 V forward voltage bias).