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Photovoltaic waste management in sub-Saharan Africa: current practices in Burkina Faso

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Abstract

Sub-Saharan Africa is witnessing a proliferation of photovoltaic (PV) waste due to the increasing number of solar PV power plants. PV waste (panels, batteries, electrical cables, mounting structures, and inverters) consists of elements such as mercury, cadmium, chromium, lead, copper, aluminum, fluorinated compounds, and plastics that are toxic to human health and the environment if a proper management system is not available. Although many studies worldwide have focused on PV waste management, very few have been conducted in sub-Saharan Africa. This study aims to investigate the current PV waste management system in Burkina Faso, determine stakeholder profiles, and propose strategies to enhance the existing system. Documentary research, interviews, questionnaires, and field visits were used in the methodology. The survey showed that young people, mainly under 30 years of age and with a primary education, dominate (70%) in terms of PV waste collection and repair activities, while the more technical recycling and export activities are carried out mainly (88%) by stakeholders older than 40 years and with a secondary education (60%). Among the older stakeholders, 100% are aware of the hazardous nature of PV waste, whereas 36% are young people. From an environmental perspective, the main source of contamination observed is the release of lead-rich sulfuric acids into water and soil during the collection and repair phases. During the recycling of batteries and electrical cables, toxic fumes are emitted into the air, and recycling residues rich in toxic substances are landfilled. To reduce risks to human health and the environment when managing PV waste, the introduction of legislation, the multiplication of collection points and appropriate infrastructures, the training and awareness-raising of stakeholders, and the extended responsibility of manufacturers are recommended. Studies on the economic feasibility of setting up formal management structures are needed to complete this work.

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Acknowledgements

The authors wish to thank the German state for financial support through the Deutscher Akademischer Austauschdienst Scholarship and the Agence Nationale des Energies Renouvelables et de l’Efficacité for providing data on PV system in Burkina Faso.

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  1. Laboratoire Énergies Renouvelables et Efficacité Énergétique, Institut International d’Ingénierie de l’Eau et de l’Environnement (2iE), 01 BP 594, Ouagadougou, Burkina Faso

    Kodami Badza, Yrebegnan Moussa Soro & Marie Sawadogo

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  1. Kodami Badza
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Badza, K., Soro, Y.M. & Sawadogo, M. Photovoltaic waste management in sub-Saharan Africa: current practices in Burkina Faso. Waste Dispos. Sustain. Energy (2024). https://doi.org/10.1007/s42768-023-00184-w

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