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World class computing and information science research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

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Evaluating the state of the art of photovoltaic performance modelling in Europe

Williams, S.R. and Betts, T.R. and Gottschalg, R. and Infield, D.G. and van der Borg, N.J.C.M. and Burgers, A.R. and de Moor, H. and Warta, W. and Friesen, G. and Chianese, D. and Guerin de Montgareuil, A. and Zdanowicz, T. and Stellbogen, D. and Herrmann, W. and Pietruzko, S. and Krustok, J. and Dunlop, E. (2005) Evaluating the state of the art of photovoltaic performance modelling in Europe. In: 20th European Photovoltaic Solar Energy Conference, 2005-06-06 - 2005-06-10.

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Abstract

There are many models currently available which provide detailed information regarding the performance of PV modules. This paper reviews, as part of the European co-ordination action PV-Catapult, the different performance modelling approaches currently developed by European research institutions. The aim of this paper is to provide an overview of modelling approaches available and define the inputs required for each model. This will be used to investigate the accuracy of these models for different European climatic conditions in a second stage of the project. All methods are reviewed, highlighting strengths and weaknesses of each. None of the methods consider temporal variations, such as degradation in the case of amorphous silicon. This paper investigates the impact this has on the year-to-year performance translation of such devices. Furthermore there is very little consideration of the incident spectrum, which affects wide band gap devices and multi-bandgap devices disproportionately, but this effect commonly is folded into irradiance and temperature effects. The implications of these are discussed based on current sales practice of quoting straight kWh/kWp, indicating the need for a better, technology independent comparator based on realistic energy production, rather than today’s STC laboratory efficiency. The results indicate that most models can predict energy yield within 10%.