Title: Towards a model for a-Si modules performance behavior under real outdoor operating conditions
Authors: POLVERINI DAVIDEKENNY RobertHULD ThomasTZAMALIS GEORGIOS
Citation: SOLAR ENERGY vol. 116 p. 388-398
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2015
JRC N°: JRC86871
ISSN: 0038-092X
URI: http://www.sciencedirect.com/science/article/pii/S0038092X15001838
http://publications.jrc.ec.europa.eu/repository/handle/JRC86871
DOI: 10.1016/j.solener.2015.04.008
Type: Articles in periodicals and books
Abstract: Since the first research studies in the 1970s, the metastable behaviour of amorphous silicon thin film photovoltaic modules has yet to be fully understood. In this paper a quantitative model for the performance of thin film amorphous and micromorph modules is presented. The first part of the experimental study consists of periodic indoor measurements of I-V characteristics on a set of six modules, both single and multijunction, during a one year period of outdoor exposure. In the second part, light soaking and thermal annealing cycles were performed indoors on the same modules. The goal of the present research is to assess how the performance of a module is affected by the operating conditions, mainly temperature and irradiance, both of which contribute to a seasonal variation in its performance. For this purpose, a quantitative model is developed that takes into account both of these two contributions; the results show a good agreement between experimental and theoretical data. Further developments and model improvements are proposed and discussed.
JRC Directorate:Energy, Transport and Climate

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