Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules

This article analyses and compares the influence of p-type Cz-Si solar cells produced with and without Al-BSF and silicon oxide passivation on the degradation of the electrical parameters of PV modules, after 77 months under operating conditions in a PV system. Solar cells were manufactured at a pil...

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Main Authors: Izete Zanesco, Adriano Moehlecke, Jeferson Ferronato, Moussa Ly, João Victor Zanatta Britto, Bruno Inácio da Silva Roux Leite, Taila Cristiane Policarpi
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/17/4/832
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author Izete Zanesco
Adriano Moehlecke
Jeferson Ferronato
Moussa Ly
João Victor Zanatta Britto
Bruno Inácio da Silva Roux Leite
Taila Cristiane Policarpi
author_facet Izete Zanesco
Adriano Moehlecke
Jeferson Ferronato
Moussa Ly
João Victor Zanatta Britto
Bruno Inácio da Silva Roux Leite
Taila Cristiane Policarpi
author_sort Izete Zanesco
collection DOAJ
description This article analyses and compares the influence of p-type Cz-Si solar cells produced with and without Al-BSF and silicon oxide passivation on the degradation of the electrical parameters of PV modules, after 77 months under operating conditions in a PV system. Solar cells were manufactured at a pilot plant-scale facility, and 32 PV modules with silicon oxide passivated emitter and Al-BSF solar cells were assembled. The other group was composed of 28 PV modules produced with n<sup>+</sup>pn<sup>+</sup> solar cells. The I–V curves of the PV modules were measured under standard test conditions before and after 77 months of exposure. In both groups, the short-circuit current presented higher degradation, and the open-circuit voltage showed low reduction. However, the degradation of these electrical parameters was lower in PV modules assembled with a passivated emitter and Al-BSF solar cells. Consequently, the power degradation rate of PV modules with passivated emitter n<sup>+</sup>pp<sup>+</sup> and n<sup>+</sup>pn<sup>+</sup> solar cells was 0.29% and 0.66% per year, respectively. The milky pattern was observed at the edge of all solar cells and was related to titanium dioxide antireflective coating modification and laser isolation processing.
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spelling doaj.art-29ac8934022a47409aff0414839921122024-02-23T15:15:11ZengMDPI AGEnergies1996-10732024-02-0117483210.3390/en17040832Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic ModulesIzete Zanesco0Adriano Moehlecke1Jeferson Ferronato2Moussa Ly3João Victor Zanatta Britto4Bruno Inácio da Silva Roux Leite5Taila Cristiane Policarpi6Solar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilSolar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilSolar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilSolar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilSolar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilSolar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilSolar Energy Technology Nucleus (NT-Solar), School of Technology, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, BrazilThis article analyses and compares the influence of p-type Cz-Si solar cells produced with and without Al-BSF and silicon oxide passivation on the degradation of the electrical parameters of PV modules, after 77 months under operating conditions in a PV system. Solar cells were manufactured at a pilot plant-scale facility, and 32 PV modules with silicon oxide passivated emitter and Al-BSF solar cells were assembled. The other group was composed of 28 PV modules produced with n<sup>+</sup>pn<sup>+</sup> solar cells. The I–V curves of the PV modules were measured under standard test conditions before and after 77 months of exposure. In both groups, the short-circuit current presented higher degradation, and the open-circuit voltage showed low reduction. However, the degradation of these electrical parameters was lower in PV modules assembled with a passivated emitter and Al-BSF solar cells. Consequently, the power degradation rate of PV modules with passivated emitter n<sup>+</sup>pp<sup>+</sup> and n<sup>+</sup>pn<sup>+</sup> solar cells was 0.29% and 0.66% per year, respectively. The milky pattern was observed at the edge of all solar cells and was related to titanium dioxide antireflective coating modification and laser isolation processing.https://www.mdpi.com/1996-1073/17/4/832degradation ratePV modulessilicon solar cell technology
spellingShingle Izete Zanesco
Adriano Moehlecke
Jeferson Ferronato
Moussa Ly
João Victor Zanatta Britto
Bruno Inácio da Silva Roux Leite
Taila Cristiane Policarpi
Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules
Energies
degradation rate
PV modules
silicon solar cell technology
title Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules
title_full Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules
title_fullStr Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules
title_full_unstemmed Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules
title_short Influence of Passivation and Solar Cell Configuration on the Electrical Parameter Degradation of Photovoltaic Modules
title_sort influence of passivation and solar cell configuration on the electrical parameter degradation of photovoltaic modules
topic degradation rate
PV modules
silicon solar cell technology
url https://www.mdpi.com/1996-1073/17/4/832
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AT jefersonferronato influenceofpassivationandsolarcellconfigurationontheelectricalparameterdegradationofphotovoltaicmodules
AT moussaly influenceofpassivationandsolarcellconfigurationontheelectricalparameterdegradationofphotovoltaicmodules
AT joaovictorzanattabritto influenceofpassivationandsolarcellconfigurationontheelectricalparameterdegradationofphotovoltaicmodules
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