Print Email Facebook Twitter Exploring Trade-offs in Reservoir Operations through Many Objective Optimisation: Case of Nile River Basin Title Exploring Trade-offs in Reservoir Operations through Many Objective Optimisation: Case of Nile River Basin Author Sari, Yasin (TU Delft Technology, Policy and Management) Contributor Kwakkel, J.H. (graduation committee) Zatarain Salazar, J. (mentor) Okur, Ö. (graduation committee) Yalew, Seleshi G. (graduation committee) Degree granting institution Delft University of Technology Corporate name Delft University of Technology Programme Engineering and Policy Analysis Date 2022-08-18 Abstract Water storage and diversion capacity of reservoirs in the Nile Basin are benefited for various purposes including agricultural irrigation and hydro-energy production. Filling and operation of the recently constructed Grand Ethiopian Renaissance Dam (GERD) have been subject to heated debate for its implications on downstream countries Sudan and Egypt. In this study, we investigated trade-offs between the objectives of the three countries by formulating the problem as many objective optimisation. To this end, we built a simulation model conforming to the evolutionary multi-objective direct policy search (EMODPS) framework. Based on the optimisation results, we discovered two scenarios under which trade-offs exhibit diverging patterns. Our findings suggest that 1) aggressive filling strategies create evident trade-offs between the hydro-energy generation objective of Ethiopia and consumptive uses of Sudan and Egypt, 2) growing demand in the long-term brings the dilemmaof maintaining dams operational versus satisfying the demand and 3) increased demand pressure reinforces trade-offs between Egypt’s aggregate deficit minimisation and Ethiopia’s hydropower maximisation objectives. Our results highlight the potential of compromise policies in managing the objectives of all stakeholders without imposing heavy sacrifices. These policies represent an opportunity for cooperative operation of the dams through which multiple challenges facing the basin can be addressed. Subject EMODPSTrade-off AnalysisRiver Basin ManagementRobust Decision MakingMany Objective Optimisation To reference this document use: http://resolver.tudelft.nl/uuid:ba09fa13-5331-446c-bf5e-48f6a29042ca Coordinates 11.2165, 35.0936 Part of collection Student theses Document type master thesis Rights © 2022 Yasin Sari Files PDF MSc_Thesis_Yasin_Sari_4924851.pdf 8.88 MB Close viewer /islandora/object/uuid:ba09fa13-5331-446c-bf5e-48f6a29042ca/datastream/OBJ/view