User-Centred Design of an Audio Feedback System for Power Demand Management

  • Rebecca Ford
  • Joe Penn
  • Yu-Chieh Liu
  • Ken Nixon
  • Willie Cronje
  • Malcolm McCulloch
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8519)


Low-income houses in South Africa are supplied with a pre-payment meter and a circuit breaker that trips at a low power level (about 20A, 4.5kW), resulting in many nuisance trips. Four categories of audio cues, each being able to represent five levels of power consumption, are assessed. A survey of 62 people was conducted. The numerical analysis of the results and the perceptions of the respondents both indicate that the use of changing tempo and texture is the most effective at conveying feedback information on the power consumption in the home.


audio cues demand management low cost energy feedback 


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Rebecca Ford
    • 1
  • Joe Penn
    • 2
  • Yu-Chieh Liu
    • 2
  • Ken Nixon
    • 2
  • Willie Cronje
    • 2
  • Malcolm McCulloch
    • 3
  1. 1.School of Engineering and Computer ScienceVictoria University of WellingtonWellingtonNew Zealand
  2. 2.School of Electrical and Information EngineeringUniversity of the WitwatersrandSouth Africa
  3. 3.Department of Engineering ScienceUniversity of OxfordOxfordUnited Kingdom

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