Early degradation of silicon PV modules and guaranty conditions

Muñoz-García, Miguel Angel and Alonso Garcia, M. Carmen and Vela, Nieves and Chenlo, Faustino (2011). Early degradation of silicon PV modules and guaranty conditions. "Solar Energy", v. 85 (n. 9); pp. 2264-2274. ISSN 0038-092X. https://doi.org/10.1016/j.solener.2011.06.011.

Description

Title: Early degradation of silicon PV modules and guaranty conditions
Author/s:
  • Muñoz-García, Miguel Angel
  • Alonso Garcia, M. Carmen
  • Vela, Nieves
  • Chenlo, Faustino
Item Type: Article
Título de Revista/Publicación: Solar Energy
Date: September 2011
ISSN: 0038-092X
Volume: 85
Subjects:
Freetext Keywords: UPM, ReGENERA, CIEMAT, Solar Energy, Photovoltaics, Degradation, light soaking
Faculty: E.U.I.T. Agrícolas (UPM)
Department: Ingeniería Rural [hasta 2014]
Creative Commons Licenses: None

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Abstract

The fast growth of PV installed capacity in Spain has led to an increase in the demand for analysis of installed PV modules. One of the topics that manufacturers, promoters, and owners of the plants are more interested in is the possible degradation of PV modules. This paper presents some findings of PV plant evaluations carried out during last years. This evaluation usually consists of visual inspections, I–V curve field measurements (the whole plant or selected areas), thermal evaluations by IR imaging and, in some cases, measurements of the I–V characteristics and thermal behaviours of selected modules in the plant, chosen by the laboratory. Electroluminescence technique is also used as a method for detecting defects in PV modules. It must be noted that new defects that arise when the module is in operation may appear in modules initially defect-free (called hidden manufacturing defects). Some of these hidden defects that only appear in normal operation are rarely detected in reliability tests (IEC61215 or IEC61646) due to the different operational conditions of the module in the standard tests and in the field (serial-parallel connection of many PV modules, power inverter influence, overvoltage on wires, etc.)

More information

Item ID: 10081
DC Identifier: http://oa.upm.es/10081/
OAI Identifier: oai:oa.upm.es:10081
DOI: 10.1016/j.solener.2011.06.011
Official URL: http://www.sciencedirect.com/science/article/pii/S0038092X11002143
Deposited by: Profesor Titular de Universidad (interino) Miguel Angel /M.A. Muñoz-García
Deposited on: 23 Jan 2012 08:57
Last Modified: 20 Apr 2016 18:20
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