AGU Fall Meeting

Session // AGU Fall Meeting

Water-Energy Nexus: Examining The Crucial Connection Through Simulation Based Optimization

With a growing urbanisation and the emergence of climate change, the world is facing a more water constrained future. This phenomenon will have direct impacts on the resilience and performance of energy sector as water is playing a key role in electricity generation processes. As energy is becoming a thirstier resource and the pressure on finite water sources is increasing, modelling and analysing this closely interlinked and interdependent loop, called 'water-energy nexus' is becoming an important cross-disciplinary challenge.

Conflict often arises in transboundary river where several countries share the same source of water to be used in productive sectors for economic growth. From the perspective of the upstream users, it would be ideal to store the water for hydropower generation and protect the city against drought whereas the downstream users need the supply of water for growth. This research use the case study on the transboundary Blue Nile River basin located in the Middle East where the Ethiopian government decided to invest on building a new dam to store the water and generate hydropower. This leads to an opposition by downstream users as they believe that the introduction of the dam would reduce the amount of water available downstream. This calls for a compromise management where the reservoir operating rules need to be derived considering the interdependencies between the resources available and the requirements proposed by all users. For this, we link multiobjective optimization algorithm to water-energy use simulation model to achieve effective management of the transboundary reservoir operating strategies. The objective functions aim to attain social and economic welfare by minimizing the deficit of water supply and maximizing the hydropower generation. The study helps to improve the policies by understanding the value of water and energy in their alternative uses. The results show how different optimal reservoir release rules generate different trade-off solutions inherently involved in upstream and downstream users requirements and decisions. This study stimulates the research in this context by using simulation based optimization techniques to manage for security for food, water and energy generation, which leads to improve sustainability and long-term political stability.

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Stockholm World Water Week (SWWW) 2019

Stockholm World Water Week 2019

In 2019, World Water Week will explore an inclusive approach. This week’s theme: “Water and society – including all” is recognizing that not everybody is impacted in the same way by too little, too much or too dirty water. Less obvious than last year, the Nexus approach will remain at the heart of the water debate, especially through the seminar topic "Addressing migration through regional integration and water security for all", that explicitly connects water, energy and food security as the...

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SWWW 2019 Seminar // Addressing Migration through Regional Integration and Water Security for All

Regional economic integration can foster transboundary water management as well as energy and food security. It also attracts investments that address infrastructure deficits, accelerates participation in global and regional value chains, and stimulates economic growth. All are important entry points for sustainable development. However, environmental and social co-benefits are typically not as well quantified as economic growth.

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Special Session at 38th IAHR World Congress // Sustainable Water Storage to Meet Water, Food, and Energy Development Goals

Storage to stabilize water availability is essential to sustain water, food and energy production, reduce hazards, and adapt to climate change. Regulation of water resources using dams and reservoirs played a major role in the socio-economic development of northern countries during the 20th century, but practices of the time often led to undesired environmental and social impacts. Thousands more dams and reservoirs are planned for construction in the next decades, mainly in Asia, Africa, and...

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