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Mapping the Risk Posed to Groundwater-Dependent Ecosystems by Uncontrolled Access to Photovoltaic Water Pumping in Sub-Saharan Africa

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dc.contributor.authorZuffinetti, Guillaume
dc.contributor.authorMeunier, Simon
dc.date.accessioned2024-10-01T13:43:02Z
dc.date.available2024-10-01T13:43:02Z
dc.date.issued2024-10-01
dc.description.abstractPhotovoltaic-powered groundwater pumping offers a transformative solution for water services in underserved areas. However, without proper regulation, this technology could overexploit groundwater resources, threatening the groundwater-dependent ecosystems that rely on them. Often overlooked in development planning and water allocation, groundwater-dependent ecosystems hold significant socioeconomic and environmental importance. This study maps the risk to groundwater-dependent ecosystems in Sub-Saharan Africa from uncontrolled access to photovoltaic groundwater pumping using the analytic hierarchy process. It evaluates risks using data on irradiance, groundwater, and population, and novel data on groundwater-dependent ecosystems. Two scenarios are analyzed to improve the robustness of the findings. The results show that 92 percent of Sub-Saharan Africa’s groundwater-dependent ecosystems risk overexploitation if photovoltaic water pumping is implemented without proper controls. Groundwater-dependent ecosystems in Southern and Eastern Africa, particularly in South Africa and Namibia, are found to face higher risks, while those in Gabon, the Republic of Congo, and southern Nigeria tend to be less at risk. Comparing these results with populations relying on unimproved water sources highlights regions like southern Nigeria and South Sudan, which could be prioritized for potential photovoltaic water pumping system investments due to their higher groundwater development needs and lower risks to groundwater-dependent ecosystems. Conversely, areas like Namibia and South Africa, with lower groundwater development needs but higher risks to groundwater-dependent ecosystems, should require targeted investments and very close groundwater monitoring. These findings can help policy makers in targeting investments in photovoltaic water pumping systems and identifying regions needing careful monitoring to ensure sustainable groundwater use and minimal impact on groundwater-dependent ecosystems.en
dc.identifierhttp://documents.worldbank.org/curated/en/099419309302454145/IDU17970fd3c1b6c4148521940c1908ba81aeae1
dc.identifier.doi10.1596/1813-9450-10935
dc.identifier.urihttps://hdl.handle.net/10986/42218
dc.languageEnglish
dc.language.isoen_US
dc.publisherWashington, DC: World Bank
dc.relation.ispartofseriesPolicy Research Working Paper; 10935
dc.rightsCC BY 3.0 IGO
dc.rights.holderWorld Bank
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/igo/
dc.subjectGROUNDWATER-DEPENDENT SYSTEMS
dc.subjectPHOTOVOLTAIC WATER PUMPING SYSTEMS
dc.subjectANALYTIC HIERARCHY PROCESS
dc.subjectSUSTAINABLE GROUNDWATER MANAEMENT
dc.subjectSUB-SAHARAN AFRICA
dc.subjectCLEAN WATER AND SANITATION
dc.subjectSDG 6
dc.titleMapping the Risk Posed to Groundwater-Dependent Ecosystems by Uncontrolled Access to Photovoltaic Water Pumping in Sub-Saharan Africaen
dc.typeWorking Paper
dspace.entity.typePublication
okr.associatedcontenthttps://reproducibility.worldbank.org/index.php/catalog/229 Link to reproducibility package
okr.crossref.titleMapping the Risk Posed to Groundwater-Dependent Ecosystems by Uncontrolled Access to Photovoltaic Water Pumping in Sub-Saharan Africa
okr.date.disclosure2024-10-01
okr.date.doiregistration2025-04-07T08:24:22.259296Z
okr.date.doiregistration2025-04-08T16:11:36.157177Z
okr.date.doiregistration2025-04-09T03:04:00.526133Z
okr.date.lastmodified2024-09-30T00:00:00Zen
okr.doctypePolicy Research Working Paper
okr.doctypePublications & Research
okr.docurlhttp://documents.worldbank.org/curated/en/099419309302454145/IDU17970fd3c1b6c4148521940c1908ba81aeae1
okr.guid099419309302454145
okr.identifier.docmidIDU-7970fd3c-b6c4-4852-940c-908ba81aeae1
okr.identifier.doi10.1596/1813-9450-10935
okr.identifier.doihttps://doi.org/10.1596/1813-9450-10935
okr.identifier.externaldocumentum34396967
okr.identifier.internaldocumentum34396967
okr.identifier.reportWPS10935
okr.import.id5393
okr.importedtrueen
okr.language.supporteden
okr.pdfurlhttp://documents.worldbank.org/curated/en/099419309302454145/pdf/IDU17970fd3c1b6c4148521940c1908ba81aeae1.pdfen
okr.region.geographicalSub-Saharan Africa
okr.sectorIrrigation and Drainage,Other Water Supply, Sanitation and Waste Management
okr.themeWater Institutions, Policies and Reform,Mitigation,Environment and Natural Resource Management,Water Resource Management,Climate change,Adaptation
okr.topicWater Resources::Groundwater
okr.topicWater Resources::Water Resources Assessment
okr.topicEnvironment::Ecosystems and Natural Habitats
okr.topicEnvironment::Natural Resources Management
okr.topicEnergy::Energy and Environment
okr.unitPlanet - Global Solutions Water (SWAGL)
okr.unitPlanet - Chief Economist (GGSCE)
relation.isSeriesOfPublication26e071dc-b0bf-409c-b982-df2970295c87
relation.isSeriesOfPublication.latestForDiscovery26e071dc-b0bf-409c-b982-df2970295c87
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