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Title:
 
Effect of the Angle Dependence of Solar Cells on the Results of Indoor and Outdoor Calibrations
 
Author(s):
 
S. Winter, D. Friedrich, T. Gerloff
 
Keywords:
 
Calibration, IEC Standard, Outdoor Measurement
 
Topic:
 
Components for PV Systems
Subtopic: PV Modules
Event: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain
Session: 4AV.3.97
 
Pages:
 
4304 - 4306
ISBN: 3-936338-26-4
Paper DOI: 10.4229/25thEUPVSEC2010-4AV.3.97
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


A typically unconsidered difference during solar cell measurements using the natural sun light, on the one hand, and a sun simulator on the other hand is their angular distribution. While a sun simulator creates mainly direct radiation, the natural sunlight contains a reasonably diffuse portion, in addition. The angle dependence of different types of typical reference solar cells was measured with a two axis solar cell goniometer. Thus the effect of neglecting the angular distribution of global sunlight by using direct light, only, was calculated to be 0.5% to 1.2%. Hence, the authors recommend the definition of the angular distribution within a standard.