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Communication dans un congrès

Uncertainties in solar electricity yield prediction from fluctuation of solar radiation

Abstract : We have analyzed the variability of solar radiation in the Mediterranean and Black Sea regions by comparing yearly and monthly averages to long-term average values calculated from the HelioClim-1 database. Daily sums of global horizontal irradiation are considered for 18 years in the period 1985-2004. Standard deviation of yearly sums of global horizontal irradiation shows low interannual variability, being mostly in the range of 4% to 6%. While in arid climate of Northern Africa, Middle East, and Southern Europe standard deviation goes below 4%, values up to 10% are identified along coasts and in mountains. In the least sunny year out of 18, the solar resource was generally never more than 9% below the long-term average, and only in a few regions the radiation deficit reached 15%. The most stable weather is found in summer with standard deviation in June below 12%. The least stable season is winter, with variability higher then 20% in December, and regionally going above 35%. The solar resource has distinctive time and geographical patterns that might affect financing of large photovoltaic systems, as well as management of the distributed electricity generation.
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Communication dans un congrès
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00468620
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Soumis le : mercredi 31 mars 2010 - 11:22:12
Dernière modification le : jeudi 24 septembre 2020 - 17:22:04
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  • HAL Id : hal-00468620, version 1

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Marcel Suri, Thomas Huld, Ewan Dunlop, Michel Albuisson, Mireille Lefèvre, et al.. Uncertainties in solar electricity yield prediction from fluctuation of solar radiation. 22nd European Photovoltaic Solar Energy Conference, Sep 2007, Milan, Italy. ⟨hal-00468620⟩

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