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Accuracy assessment of models estimating total irradiance

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conference contribution
posted on 25.08.2009, 13:04 by Jiang Zhu, Thomas R. Betts, Ralph Gottschalg
The accuracy of estimating total in-plane irradiance is investigated for the UK climate. Several models, which differ in essence in an assumed diffuse irradiance distribution at different levels of sky cloudiness, were used to calculate solar irradiance on inclined planes from horizontal irradiance data. The accuracy of this calculation was validated against measured data. It transpires that there is not massive difference between the various methodologies, but on average the Reindl model seems to be slightly better than other methods, followed by Perez et al. model.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Citation

ZHU, J., BETTS, T.R. and GOTTSCHALG, R., 2008. Accuracy assessment of models estimating total irradiance. 4th Photovoltaic Science Application and Technology (PVSAT-4) Conference, 2-4 April 2008, University of Bath.

Publisher

PVSAT / © The authors

Publication date

2008

Notes

This conference paper was presented at PVSAT4: http://www.pvsat.org.uk/PVSAT-4.htm

Language

en

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