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The nature of domestic electricity-loads and effects of time averaging on statistics and on-site generation calculations

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  • Wright, Andrew
  • Firth, Steven

Abstract

This paper describes exploratory analyses of domestic electricity-profiles recorded at a high time resolution of 1Â min on eight houses. It includes a detailed analysis of the effects of time averaging. For dwellings with on-site generation, such as micro-CHP, a better understanding of electricity profiles is important for the economic analysis of systems, and to examine the effects of widespread on-site generation on local electricity-networks. Most load data are available at half-hour intervals; averaging data over periods longer than a minute is shown to under-estimate the proportions of both export and import. The frequency distribution of loads is shown to be highly skewed, with varying distributions and an average load factor of 0.1. Further study is needed to develop more general relationships for a large sample of houses, to apply in design and research.

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  • Wright, Andrew & Firth, Steven, 2007. "The nature of domestic electricity-loads and effects of time averaging on statistics and on-site generation calculations," Applied Energy, Elsevier, vol. 84(4), pages 389-403, April.
    • Handle: RePEc:eee:appene:v:84:y:2007:i:4:p:389-403
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    1. Abu-Sharkh, S. & Arnold, R.J. & Kohler, J. & Li, R. & Markvart, T. & Ross, J.N. & Steemers, K. & Wilson, P. & Yao, R., 2006. "Can microgrids make a major contribution to UK energy supply?," Renewable and Sustainable Energy Reviews, Elsevier, vol. 10(2), pages 78-127, April.
    2. Mansouri, Iman & Newborough, Marcus & Probert, Douglas, 1996. "Energy consumption in UK households: Impact of domestic electrical appliances," Applied Energy, Elsevier, vol. 54(3), pages 211-285, July.
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