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Temperature and Intensity Dependence of Twelve Photovoltaic Technologies
B. Zinsser, G. Makrides, M.B. Schubert, G.E. Georghiou, J.H. Werner
Thermal Performance, Energy Performance, Irradiance Performance
PV Systems
Subtopic: Grid-connected Applications
Event: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain
Session: 5AO.7.5
3249 - 3252
ISBN: 3-936338-24-8
Paper DOI: 10.4229/23rdEUPVSEC2008-5AO.7.5
0,00 EUR
Document(s): paper


In close cooperation with the University of Cyprus, the Universit├Ąt Stuttgart operates two identical sets of similar photovoltaic (PV) systems of different technologies at the locations Stuttgart (Germany) and Nicosia (Cyprus) since 2006. This paper analyzes the temperature and irradiance dependence of the twelve installed PV technologies. Performance data of the year 2007 are normalized and fitted to determine the temperature and irradiance coefficients at the maximum power point (mpp) of the PV generators. At high temperature as well as under low light conditions, the two thin film technologies of amorphous silicon and CdTe present the best relative performance. Crystalline silicon technologies exhibit almost similar coefficients of their temperature (gPmpp = ~-0.5 %/K) and irradiance dependence. The total energy yield of the PV systems during the year 2007, however, shows no discernible effect of temperature and irradiance coefficients of the different technologies.