Mateo-Guerrero, C.; Hernández Fenollosa, MDLÁ.; Montero Reguera, ÁE.; Segui-Chilet, S. (2018). Analysis of initial stabilization of cell efficiency in amorphous silicon photovoltaic modules under real outdoor conditions. Renewable Energy. 120:114-125. https://doi.org/10.1016/j.renene.2017.12.054
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/141635
Title:
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Analysis of initial stabilization of cell efficiency in amorphous silicon photovoltaic modules under real outdoor conditions
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Author:
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Mateo-Guerrero, Carlos
Hernández Fenollosa, María De Los Ángeles
Montero Reguera, Álvaro Enrique
Segui-Chilet, Salvador
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UPV Unit:
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Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada
Universitat Politècnica de València. Departamento de Ingeniería Electrónica - Departament d'Enginyeria Electrònica
Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada
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Issued date:
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Abstract:
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[EN] This contribution presents a field study in which the initial stabilization of thin-film amorphous silicon (a-Si:H) is investigated. Two grid-connected a-Si:H photovoltaic plants have been monitored and analyzed under ...[+]
[EN] This contribution presents a field study in which the initial stabilization of thin-film amorphous silicon (a-Si:H) is investigated. Two grid-connected a-Si:H photovoltaic plants have been monitored and analyzed under real outdoor conditions. A per-unit approach is proposed to compare PV plants with differences in their electrical characteristic and the start-up date. The representation of a normalized per unit PV power versus the accumulated incoming irradiation reveals an evolution that can be characterized through an exposure-response function. By this function, two populations of defects in the cells are detected. It is found that the stabilization process in the first year of operation produces a decrease of 10% in the peak power, equivalent to a decrease of 0.5% in cell efficiency. The use of the accumulated PSH for conducting the analysis of the initial stabilization produces similarities that cannot be obtained if a time scale is used. These results provide a powerful tool for PV plant designers because they enable a prediction to be made of the time-scale stabilization response in terms of unitary power, correlated with the peak sun hours received. (C) 2017 Elsevier Ltd. All rights reserved.
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Subjects:
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A-Si:H stabilization
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Light induced degradation effect (LID)
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Long-term PV measures
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Real outdoor conditions
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Staebler-Wronski effect
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Copyrigths:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Source:
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Renewable Energy. (issn:
0960-1481
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DOI:
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10.1016/j.renene.2017.12.054
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Publisher:
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Elsevier
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Publisher version:
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https://doi.org/10.1016/j.renene.2017.12.054
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Project ID:
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GV/PROMETEOII/2014/059
MINECO/TEC2014-53727-C2-1-R
AEI/IEDI-2016-00706
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Thanks:
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This work was supported by Generalitat Valenciana (PROM-ETEOII/2014/059) and Spanish MINECO (Ministry of Economy and Competitiveness TEC2014-53727-C2-1-R).
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Type:
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Artículo
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