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Energies 2009, 2(4), 839-850; doi:10.3390/en20400839

Contrasting Electricity Demand with Wind Power Supply: Case Study in Hungary

1, 2 and 1,*
1 Department of Physics of Complex Systems, Loránd Eötvös University, Pázmány P. s. 1/A, H-1117 Budapest, Hungary 2 E.ON Hungária Ltd., Roosevelt tér 7-8, H-1051 Budapest, Hungary
* Author to whom correspondence should be addressed.
Received: 25 August 2009 / Accepted: 27 September 2009 / Published: 30 September 2009
(This article belongs to the Special Issue Wind Energy)
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We compare the demand of a large electricity consumer with supply given by wind farms installed at two distant geographic locations. Obviously such situation is rather unrealistic, however our main goal is a quantitative characterization of the intermittency of wind electricity. The consumption pattern consists of marked daily and weekly cycles interrupted by periods of holidays. In contrast, wind electricity production has neither short-time nor seasonal periodicities. We show that wind power integration over a restricted area cannot provide a stable baseload supply, independently of the excess capacity. Further essential result is that the statistics are almost identical for a weekly periodic pattern of consumption and a constant load of the same average value. The length of both adequate supply and shortfall intervals exhibits a scale-free (power-law) frequency distribution, possible consequences are shortly discussed.
Keywords: wind power; intermittency; electricity consumption pattern wind power; intermittency; electricity consumption pattern
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Kiss, P.; Varga, L.; Jánosi, I.M. Contrasting Electricity Demand with Wind Power Supply: Case Study in Hungary. Energies 2009, 2, 839-850.

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