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Analysis of Encapsulant Discoloration Effect on the Temperature of Photovoltaic Module
A. Pareek, R. Meena, R. Gupta
Encapsulation, Module Temperature, PV Module, Electro-Thermal Model, Discoloration
Photovoltaic Modules and BoS Components
Subtopic: PV Module Performance – Modelling, Testing, Standards
Event: 8th World Conference on Photovoltaic Energy Conversion
Session: 3BV.3.2
619 - 622
ISBN: 3-936338-86-8
Paper DOI: 10.4229/WCPEC-82022-3BV.3.2
0,00 EUR
Document(s): paper


Encapsulant discoloration is a major reliability issue in a photovoltaic (PV) module that significantly affects its power generation. In addition, the discoloration can also affect the temperature of a PV module. High temperature negatively affects the reliability and power output of PV module. In this work, the effect of encapsulant discoloration on the temperature of PV modules has been quantitatively analyzed using simulation performed through electro-thermal modelling. The loss in power output obtained by the electrical model has been used to calculate the heat source for the thermal model to estimate the temperature. Temperature has been estimated for two case of uniform and non-uniform discoloration. The results show that uniform discoloration can increases the temperature by a few degrees compared with a pristine module. While non-uniform discoloration can cause a rise in temperature of upto 37 °C.