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Issue 1, 2017
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Potential-induced degradation in photovoltaic modules: a critical review

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Abstract

Potential-induced degradation (PID) has received considerable attention in recent years due to its detrimental impact on photovoltaic (PV) module performance under field conditions. Both crystalline silicon (c-Si) and thin-film PV modules are susceptible to PID. While extensive studies have already been conducted in this area, the understanding of the PID phenomena is still incomplete and it remains a major problem in the PV industry. Herein, a critical review of the available literature is given to serve as a one-stop source for understanding the current status of PID research. This paper also aims to provide an overview of future research paths to address PID-related issues. This paper consists of three parts. In the first part, the modelling of leakage current paths in the module package is discussed. The PID mechanisms in both c-Si and thin-film PV modules are also comprehensively reviewed. The second part summarizes various test methods to evaluate PV modules for PID. The last part focuses on studies related to PID in the omnipresent p-type c-Si PV modules. The dependence of temperature, humidity and voltage on the progression of PID is examined. Preventive measures against PID at the cell, module and system levels are illustrated. Moreover, PID recovery in standard p-type c-Si PV modules is also studied. Most of the findings from p-type c-Si PV modules are also applicable to other PV module technologies.

Graphical abstract: Potential-induced degradation in photovoltaic modules: a critical review

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Publication details

The article was received on 05 Aug 2016, accepted on 21 Nov 2016 and first published on 21 Nov 2016


Article type: Review Article
DOI: 10.1039/C6EE02271E
Citation: Energy Environ. Sci., 2017,10, 43-68
  • Open access: Creative Commons BY-NC license
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    Potential-induced degradation in photovoltaic modules: a critical review

    W. Luo, Y. S. Khoo, P. Hacke, V. Naumann, D. Lausch, S. P. Harvey, J. P. Singh, J. Chai, Y. Wang, A. G. Aberle and S. Ramakrishna, Energy Environ. Sci., 2017, 10, 43
    DOI: 10.1039/C6EE02271E

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      [Original citation] - Published by The Royal Society of Chemistry.

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