https://doi.org/10.1051/epjconf/202532602006
Understanding the Effects of Microbial Soiling on Solar Photovoltaic Performance
1 Energy, Materials and Computing Physics Research Group, Higher Normal School of Tetouan, Abdelmalek Essaadi University, Tetouan 93020, Morocco
2 Innovating Technologies Team, National School of Applied Sciences, Abdelmalek Essaadi University, Tetouan 93000, Morocco
* Corresponding author: ahmed.sadki@etu.uae.ac.ma
Published online: 21 May 2025
The performance of photovoltaic (PV) modules is critically influenced by environmental factors, with soiling standing out as a significant challenge. This study investigates the impact of soiling, particularly the presence of microorganisms, on the efficiency of PV modules installed near wine production sites, especially during the grape harvest season. Through a detailed case study analysis of a solar power plant in eastern France, this research quantifies the performance degradation caused by biofilm formation and organic residues from wine production activities. Our findings reveal that the accumulation of these contaminants leads to a measurable decrease in energy yield, highlighting the necessity for regular cleaning and maintenance protocols. By exploring the specific types of contaminants and their seasonal variations, this paper provides actionable recommendations for mitigating soiling effects and optimizing the performance of solar PV installations in vineyard regions.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
