Hydropower plans in eastern and southern Africa increase risk of concurrent climate-related electricity supply disruption View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2017-12-08

AUTHORS

Declan Conway, Carole Dalin, Willem A. Landman, Timothy J. Osborn

ABSTRACT

Hydropower comprises a significant and rapidly expanding proportion of electricity production in eastern and southern Africa. In both regions, hydropower is exposed to high levels of climate variability and regional climate linkages are strong, yet an understanding of spatial interdependences is lacking. Here we consider river basin configuration and define regions of coherent rainfall variability using cluster analysis to illustrate exposure to the risk of hydropower supply disruption of current (2015) and planned (2030) hydropower sites. Assuming completion of the dams planned, hydropower will become increasingly concentrated in the Nile (from 62% to 82% of total regional capacity) and Zambezi (from 73% to 85%) basins. By 2030, 70% and 59% of total hydropower capacity will be located in one cluster of rainfall variability in eastern and southern Africa, respectively, increasing the risk of concurrent climate-related electricity supply disruption in each region. Linking of nascent regional electricity sharing mechanisms could mitigate intraregional risk, although these mechanisms face considerable political and infrastructural challenges. More... »

PAGES

946-953

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/s41560-017-0037-4

DOI

http://dx.doi.org/10.1038/s41560-017-0037-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1093139670


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