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Integrated Water Resource Management and Energy Requirements for Water Supply in the Copiapó River Basin, Chile (2014)

Publicación de los investigadores de Recursos Críticos Francisco Suárez y Jorge Gironás en el journal Water.

Posteado por Por admincedeus Fecha 20 de enero, 2015

Title

Integrated Water Resource Management and Energy Requirements for Water Supply in the Copiapó River Basin, Chile

Publication Type

Journal Article

Year of Publication

2014

Authors

Francisco Suárez, José F. Muñoz, Bonifacio Fernández, Jean-Marc Dorsaz, Christian K. Hunter, Christos A. Karavitis and Jorge Gironás

Journal Title

Water

Keywords

water-energy nexus; arid region; river basin; groundwater; water supply

Abstract

Population and industry growth in dry climates are fully tied to significant increase in water and energy demands. Because water affects many economic, social and environmental aspects, an interdisciplinary approach is needed to solve current and future water scarcity problems, and to minimize energy requirements in water production. Such a task requires integrated water modeling tools able to couple surface water and groundwater, which allow for managing complex basins where multiple stakeholders and water users face an intense competition for limited freshwater resources. This work develops an integrated water resource management model to investigate the water-energy nexus in reducing water stress in the Copiapó River basin, an arid, highly vulnerable basin in northern Chile. The model was utilized to characterize groundwater and surface water resources, and water demand and uses. Different management scenarios were evaluated to estimate future resource availability, and compared in terms of energy requirements and costs for desalinating seawater to eliminate the corresponding water deficit. Results show a basin facing a very complex future unless measures are adopted. When a 30% uniform reduction of water consumption is achieved, 70 GWh over the next 30 years are required to provide the energy needed to increase the available water through seawater desalination. In arid basins, this energy could be supplied by solar energy, thus addressing water shortage problems through integrated water resource management combined with new technologies of water production driven by renewable energy sources.

DOI

10.3390/w6092590

Corresponding Author

Jorge Gironás, Email: jgironas@ing.puc.cl

Line (s) of Research

Critical Resources

 

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