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Africa 
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China’s investment in African hydropower: How to govern the water–energy nexus? Evidence from the Bui Dam in Ghana
Published in Giuseppina Siciliano, Frauke Urban, Chinese Hydropower Development in Africa and Asia, 2017
Nexus has become a popular concept in international development as it purports to address trade-offs between competing sectors drawing on the same resources (Bhaduri et al., 2014, 2015). For hydropower, this primarily addresses the water–energy nexus, in other words the use of water for different uses, such as agriculture, energy and industry. In this trade-off, distributional issues between different sectors are addressed, but the impact on local communities is often neglected or treated as a side issue. A key question to answer is therefore who makes decisions for whom in nexus, both in general and in the specific case of hydropower, and how decisions can be made in an equitable manner so that communities affected by hydropower dams are involved in decision-making and benefit from the project.
Water
Published in John C. Ayers, Sustainability, 2017
While water is required to produce most forms of energy (Holland et al. 2015), energy is required to transport and treat water. This interdependence of water and energy production is called the water–energy nexus. Transporting water is energy-intensive because water is dense. Pumping and treating drinking water and wastewater consumes about 4% of the energy supply in the United States (Karl et al. 2009). For this reason, and to reduce evaporative losses, water transport over great distances is usually gravity driven, for example, where water starts at relatively high elevation, allowing us to direct its flow, for example, from melting glaciers to fertile valley soils.2 Because we cannot easily transport water, its local abundance has limited the extent of human settlements throughout history.
California’s Climate Change Response Strategy
Published in Kathleen A. Miller, Alan F. Hamlet, Douglas S. Kenney, Kelly T. Redmond, Water Policy and Planning, 2017
The water–energy nexus is the relationship between the use of water to extract, convert, and use energy, and the use of energy to extract, treat, deliver, and use water. They are inherently interrelated; energy is usually required throughout the water-use cycle, and water is required for many (though not all) energy system processes. It is possible to significantly reduce energy use and related emissions in water systems and water use in energy systems. The potential multiple benefits, such as cost savings, improved reliability, resource efficiency, reduced environmental impacts, and GHG emission reductions, of the integrated management of water and energy are important aspects of the water–energy nexus (AWE/ACEEE 2013; Wilkinson 2011; Cooley et al. 2013).
A synthetic water distribution network model for urban resilience
Published in Sustainable and Resilient Infrastructure, 2022
Nasir Ahmad, Mikhail Chester, Emily Bondank, Mazdak Arabi, Nathan Johnson, Benjamin L. Ruddell
The synthetic approach offers new potentials for estimating the relationships between coupled water and other infrastructure, namely power. There has been much interest recently in understanding the relationships between water and power systems, often termed the water-energy nexus. It is clear that both systems rely heavily on each other, and given each’s criticality understanding the dynamics across systems is doubly important. Yet as described gathering actual system data for any one system is challenging enough, let alone two. As there is a much more mature body of literature (Gegner et al., 2016; Schweitzer et al., 2017; Wang et al., 2010) on synthetic power distribution system analysis, the coupling of synthetic water and power systems represents an important new frontier for research and insights. Future work should focus on the integration of two or more synthetic infrastructure systems to begin elucidating the complexities between our ever-changing infrastructure. The algorithm developed in this study to generate synthetic networks provides the spatially-explicit information that would be necessary for modeling the sets of dependencies between the water and power systems including water pumps and power loads (Cascos et al., 2004), water SCADA and power loads (Mays, 2000), water pipes and power transformers (Guinyard et al., 2015; Idaho National Laboratory (INL), 2006), and water demand nodes and power cooling generation(Bartos & Chester, 2014).
Quantification of the water-energy-carbon nexus of the coal fired powerplant in water stressed area of Pakistan
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Naeem H Malik, Faheemullah Shaikh, Laveet Kumar, M. S. Hossain
EPTL represents an inseparable relationship between water and energy and it is necessary to examine and report this relationship before the government executes expansion plans for Thar coal, which are due in future. In other words, to calculate the amount of energy consumed for supplying water to the power plant and the amount of water withdrawn to produce energy in the plant. This relationship between energy and water is famously known as the water-energy nexus.