A Continental-Scale Hydroeconomic Model for Integrating Water-Energy-Land Nexus Solutions

Taher Kahil, Simon Parkinson, Yusuke Satoh, Peter Greve, Peter Burek, Ted I.E. Veldkamp, Robert Burtscher, Edward Byers, Ned Djilali, Guenther Fischer, Volker Krey, Simon Langan, Keywan Riahi, Sylvia Tramberend, Yoshihide Wada

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


This study presents the development of a new bottom-up large-scale hydroeconomic model, Extended Continental-scale Hydroeconomic Optimization (ECHO), that works at a subbasin scale over a continent. The strength of ECHO stems from the integration of a detailed representation of local hydrological and technological constraints with regional and global policies, while accounting for the feedbacks between water, energy, and agricultural sectors. In this study, ECHO has been applied over Africa as a case study with the aim of demonstrating the benefits of this integrated hydroeconomic modeling framework. Results of this framework are overall consistent with previous findings evaluating the cost of water supply and adaptation to global changes in Africa. Moreover, results provide critical assessments of future investment needs in both supply- and demand-side water management options, economic implications of contrasting future socioeconomic and climate change scenarios, and the potential trade-offs among economic and environmental objectives. Overall, this study demonstrates the capacity of ECHO to address challenging research questions examining the sustainability of water supply and the impacts of water management on energy and food sectors and vice versa. As such, we propose ECHO as useful tool for water-related scenario analysis and management options evaluation.
Original languageEnglish (US)
Pages (from-to)7511-7533
Number of pages23
JournalWater Resources Research
Issue number10
StatePublished - Oct 1 2018
Externally publishedYes

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Generated from Scopus record by KAUST IRTS on 2023-09-18


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