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Article: Assessing the water and carbon footprint of hydropower stations at a national scale

TitleAssessing the water and carbon footprint of hydropower stations at a national scale
Authors
KeywordsChina
Footprint
Life Cycle Assessment
Reservoir
Water-energy-CO nexus 2
Environmental impact assessment
Issue Date2019
Citation
Science of the Total Environment, 2019, v. 676, p. 595-612 How to Cite?
Abstract© 2019 Elsevier B.V. Hydropower is among the most widely-adopted renewable energy sources worldwide. Its development has, however, led to environmental impacts such as carbon emissions and water loss. To date, the water footprint (WF) and carbon footprint (CF) of hydropower stations have been assessed, but not simultaneously or at a large scale such as national scale. Previous WF and CF studies rarely assessed all life-cycle stages of a hydropower station, calling for a more holistic understanding of the environmental impacts of hydropower. We developed a complete WF and CF assessment method and applied it to a case study on 50 of China's most influential hydropower stations, representing over 80% of the country's total hydropower. The total annual WF of these hydropower stations was 5.50 × 10 11 m 3 , equal to 18.9% of Yellow River's annual runoff. The total CF of these stations was 1.06 × 10 7 tCO 2 e, with extremely large variations found, ranging from 1850 to 1.56 × 10 6 tCO 2 e. This study provides the first environmental impact assessment to simultaneously include the WF and CF of multiple influential hydropower stations at a national scale. We were able to show spatial variations in their environmental impacts from different life-cycle stages of the hydropower station. Most of the WF was due to surface water loss from reservoirs, while most of the CF was derived from the operational and maintenance stage of these stations. This initial WF and CF assessment of hydropower at a national scale provides insights for water resource management and carbon reduction during hydropower development.
Persistent Identifierhttp://hdl.handle.net/10722/297363
ISSN
2023 Impact Factor: 8.2
2023 SCImago Journal Rankings: 1.998
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Jinyan-
dc.contributor.authorChen, Xiuzhi-
dc.contributor.authorLiu, Zhongwei-
dc.contributor.authorFrans, Veronica F.-
dc.contributor.authorXu, Zhenci-
dc.contributor.authorQiu, Xinjiao-
dc.contributor.authorXu, Feipeng-
dc.contributor.authorLi, Yunkai-
dc.date.accessioned2021-03-15T07:33:36Z-
dc.date.available2021-03-15T07:33:36Z-
dc.date.issued2019-
dc.identifier.citationScience of the Total Environment, 2019, v. 676, p. 595-612-
dc.identifier.issn0048-9697-
dc.identifier.urihttp://hdl.handle.net/10722/297363-
dc.description.abstract© 2019 Elsevier B.V. Hydropower is among the most widely-adopted renewable energy sources worldwide. Its development has, however, led to environmental impacts such as carbon emissions and water loss. To date, the water footprint (WF) and carbon footprint (CF) of hydropower stations have been assessed, but not simultaneously or at a large scale such as national scale. Previous WF and CF studies rarely assessed all life-cycle stages of a hydropower station, calling for a more holistic understanding of the environmental impacts of hydropower. We developed a complete WF and CF assessment method and applied it to a case study on 50 of China's most influential hydropower stations, representing over 80% of the country's total hydropower. The total annual WF of these hydropower stations was 5.50 × 10 11 m 3 , equal to 18.9% of Yellow River's annual runoff. The total CF of these stations was 1.06 × 10 7 tCO 2 e, with extremely large variations found, ranging from 1850 to 1.56 × 10 6 tCO 2 e. This study provides the first environmental impact assessment to simultaneously include the WF and CF of multiple influential hydropower stations at a national scale. We were able to show spatial variations in their environmental impacts from different life-cycle stages of the hydropower station. Most of the WF was due to surface water loss from reservoirs, while most of the CF was derived from the operational and maintenance stage of these stations. This initial WF and CF assessment of hydropower at a national scale provides insights for water resource management and carbon reduction during hydropower development.-
dc.languageeng-
dc.relation.ispartofScience of the Total Environment-
dc.subjectChina-
dc.subjectFootprint-
dc.subjectLife Cycle Assessment-
dc.subjectReservoir-
dc.subjectWater-energy-CO nexus 2-
dc.subjectEnvironmental impact assessment-
dc.titleAssessing the water and carbon footprint of hydropower stations at a national scale-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.scitotenv.2019.04.148-
dc.identifier.pmid31051366-
dc.identifier.scopuseid_2-s2.0-85064941052-
dc.identifier.volume676-
dc.identifier.spage595-
dc.identifier.epage612-
dc.identifier.eissn1879-1026-
dc.identifier.isiWOS:000468188300056-
dc.identifier.issnl0048-9697-

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