Journal
8TH INTERNATIONAL CONFERENCE ON SUSTAINABILITY IN ENERGY AND BUILDINGS, SEB-16
Volume 111, Issue -, Pages 954-963Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2017.03.257
Keywords
PV module; experimental techniques; electroluminescence; I-V curve scanning; building applied PV
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Photovotaic (PV) modules applied to buildings form a unique surface at the same roof inclination, replacing the tiles. Such PV systems are affected by thermal and mechanical stresses, and remarkable dirt. Another issue is the partial shading with possible failure of bypass diodes. In this paper a sample of PV modules, affected by the previous issues, was tested by electroluminescence and I-V curve scanning, to quantify power losses according to the causes. The experimental results are presented, demonstrating that the most important causes of losses are the cracks in module's solar cells and the failure of their bypass diodes. (C) 2017 The Authors. Published by Elsevier Ltd.
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