Smart power strip network and visualization server to motivate energy conservation in office

This paper describes an electric power visualization system that is developed to reduce electric power consumption in a large-scale office. A small, simple, and smart power strip is developed for practical use with a newly designed built-in contactless current sensor for each outlet. Electric power visualization server used for data acquisition from each outlet of the smart power strip and for the detection of wasted electric power is also developed. Trial service is done with the developed system in an in-house office with 93 persons and 372 outlets. A 15% reduction in power consumption is measured.