Multiyear rainfall variability in the Mono river basin and its impacts on Nangbeto hydropower scheme
<p>Hydropower energy, the main renewable energy source in West Africa, contributes to more than half of the Togo and Benin National electrification. This resource highly depends on water availability in rivers or reservoirs. The water availability heavily relies on climate patterns of the area...
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| Auteurs principaux: | , , , , |
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| Format: | article |
| Langue: | EN |
| Publié: |
Copernicus Publications
2021
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| Accès en ligne: | https://doaj.org/article/22ab8240ba5f42b38b78daccf79fbbfb |
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| Résumé: | <p>Hydropower energy, the main renewable energy source in
West Africa, contributes to more than half of the Togo and Benin National
electrification. This resource highly depends on water availability in
rivers or reservoirs. The water availability heavily relies on climate
patterns of the area. In the climate change context, the sustainability of
hydropower plants is at risk. This work aims to assess the sensitivity of
the Nangbeto hydropower plant to multiyear climate variability using
statistical analysis. The results show that energy generation at Nangbeto
hydropower is more modulated by four main variables namely inflow to
reservoir, water level, rainfall of the actual and the previous year. The
energy generation is found to be strongly and significantly correlated to
inflow to reservoir, water level, and rainfall. Overall, the Nangbeto
hydropower generation is more sensitive to inflow which is controlled by
climate variables (rainfall, temperature) and land use/cover change.
Therefore, the probable future change in these variables is suggested to be
deeply investigated.</p> |
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