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Spectrally Resolved Solar Irradiance from Satellite Data to Investigate the Performance of Thin Film Photovoltaics
T. Behrendt, J. Kühnert, A. Hammer, E. Lorenz, J. Betcke, D. Heinemann
Solar Radiation, Spectral Effect, Modelling / Modeling
Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Subtopic: Fundamental Studies
Event: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain
Session: 1DV.2.57
492 - 497
ISBN: 3-936338-26-4
Paper DOI: 10.4229/25thEUPVSEC2010-1DV.2.57
0,00 EUR
Document(s): paper


Information on solar irradiance is essential for planning and monitoring photovoltaic systems. Because some thin film solar cells such as amorphous silicon are only sensitive in a narrow spectral band, the total global irradiance might not be sufficient to describe the performance of these photovoltaic systems. The spectral irradiance distribution provides valuable information, but ground measurements are sparse and often not available in proximity of the plant. We present the SOLIS method to calculate the required information for any location based on satellite data. The spectral effect on the power output is parameterized using the spectral mismatch factor and the weighted irradiance. Sensitivity studies on the behavior of the spectral mismatch factor depending on the different atmospheric parameters were performed using SOLIS. An evaluation of the calculated spectra and their impact on the module performance in comparison to measured values is given.