Temperature impact on dusty and cleaned photovoltaic module exposed in sub-Saharan outdoor conditions
LEITER, Laboratoire Electronique, Informatique, Télécommunication et Energies Renouvelables Université Gaston Berger,
2 LESEE-2iE, Laboratoire Energie Solaire et Economie d'Energie, Institut International d'Ingénierie de l'Eau et de l'Environnement, 01 BP 594 Ouagadougou 01, Burkina Faso
3 GeePs-CentraleSupelec, Laboratoire de Génie Electrique et Electronique de Paris, Universités de Sorbonne, UPMC Univ Paris06, UMR 8507, 91190 Gif sur Yvette, France
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Received in final form: 26 June 2018
Accepted: 29 June 2018
Published online: 24 September 2018
In this work, impacts of temperature and dust cleaning on photovoltaic module performance operating in sub-Saharan's climate are investigated. Two single junction technologies, monocrystalline and polycrystalline silicon, and one micromorph (amorphous/micrystalline) thin film silicon tandem technology are considered. We have recorded at the same time under real operating conditions, the module temperature and the current versus voltage characteristics of each module, and the local solar irradiation. All the measurements were performed with the outdoor monitoring and test facility located at Ouagadougou in Burkina Faso. The results show the drop of generated power of dusty modules for the same irradiation level. Between April and June (where temperatures are higher) a significant drop of output power is observed, despite a daily cleaning. Furthermore, performance losses are observed for all technologies compared to that under standard test conditions. However, the micromorph silicon tandem technology with low temperature sensitivity present the less losses in performance compared to the monocrystalline and the polycrystalline single junction modules, even if the modules are not cleaned.
Key words: open circuit voltage / temperature coefficient / real operating conditions / dust / performance ratio
© N. Kata et al., published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.