Title: Long Term Stability of a-Si:H Thin Film Modules
Citation: The 21st European Photovoltaic Solar Energy Conference - Proceedings of the International Conference p. 2565-2569
Publisher: WIP-Renewable Energies
Publication Year: 2006
JRC N°: JRC32713
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC32713
Type: Articles in periodicals and books
Abstract: Long-term experiments of amorphous silicon photovoltaic modules have now established that stabilization of the degradation occurs at levels that depend significantly on the operation conditions, as well on the history of the modules. We suggest that stabilization occurs because of the introduction of degradation mechanisms with different time constants and annealing activation energies, depending on the exposure conditions. The effects of degradation and annealing on the energy production of an a-Si:H thin film module have been studied. These effects have been modelled and introduced into the existing time-invariant energy rating model, and studied to see if this modification improves the energy prediction accuracy for a-Si:H modules. The differences between the prediction procedure between this technology and c-Si technology have also been noted.
JRC Directorate:Sustainable Resources

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