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Modelling long-term module performance based on realistic reporting conditions with consideration to spectral effects

Williams, S.R. and Betts, T.R. and Helf, T. and Gottschalg, R. and Beyer, H.G and Infield, D.G. (2003) Modelling long-term module performance based on realistic reporting conditions with consideration to spectral effects. In: 3rd World Conference on Photovoltaic Energy Conversion, 2003-05-11 - 2003-05-18.

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Abstract

A model for the annual performance of different module technologies is presented that includes spectral effects. The model is based on the realistic reporting conditions but also allows for secondary spectral effects, as experienced by multi-junction devices. The model is validated against measurements taken at CREST and shows a good agreement for all devices. Combining this relatively simple model with ASPIRE, a spectral irradiance model based on standard meteorological measurements, allows the translation to other locations. The method is applied to measurements of different devices deployed in Loughborough and the significance of certain effects is discussed.