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The potential impacts of climate change on hydropower: An assessment of Lujeri micro hydropower scheme, Malawi

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dc.contributor.author Kasulo, Victor
dc.contributor.author Kachaje, O
dc.contributor.author Chavula, G
dc.date.accessioned 2022-07-19T15:41:53Z
dc.date.available 2022-07-19T15:41:53Z
dc.date.issued 2016-12
dc.identifier.citation Kasulo, V., Kachaje, O. & Chavula, G. (2016). The potential impacts of climate change on hydropower: An assessment of Lujeri micro hydropower scheme, Malawi. African Journal of Environmental Science and Technology, 10(12), 476-484. https://doi.org/10.5897/AJEST2016.2209 en_US
dc.identifier.uri https://doi.org/10.5897/AJEST2016.2209
dc.identifier.uri 192.168.2.8:8080/xmlui/handle/123456789/279
dc.description.abstract Climate change has the potential to affect hydropower generation by either increasing or reducing flows (discharge) and the head. This paper assessed the impacts of climate change on hydropower generation with a focus on Lujeri micro-hydropower scheme in Mulanje district, Malawi. The study analyzed trends in weather time series (air temperature and rainfall) data from 1980 to 2011 in connection to changes in river discharge and their associated impacts on hydropower generation profile. The Mann-Kendall (MK) test was used to detect trends in air temperature, precipitation and discharge. Correlation analysis was also used to uncover the relationship between discharge and precipitation as well as between discharge and temperature. The MK results highlighted significant rising rates of air temperature, precipitation and discharge in some months and decreasing trend in some other months, suggesting significant changes have occurred in the area. The relationship between precipitation and discharge was not significant (p = 0.552), while that between temperature and discharge was significant (p = 0.0001). Therefore, as temperature showed significant increasing trend, it will be associated with decrease in discharge, consequently a decrease in hydropower generation (power is directly proportion to discharge). Hence, proper adaptation measures such as standby alternative sources of energy and storage mechanisms devices should be exploited to ensure electric power is available throughout the year, especially in the hot and dry season when the discharge is usually very low. en_US
dc.language.iso en en_US
dc.publisher Academic Journals en_US
dc.subject discharge rate en_US
dc.subject precipitation en_US
dc.subject temperature en_US
dc.title The potential impacts of climate change on hydropower: An assessment of Lujeri micro hydropower scheme, Malawi en_US
dc.type Article en_US


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