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The water-energy nexus - A marriage of convenience

  1. The Water – Energy Nexus: A Marriage of Convenience By: Charles Chindove November 11, 2016
  2. The Concept Water Systems Energy Needs Energy Systems Water Needs Vulnerability of Energy to Water Constraints Concluding Remarks The Water – Energy Nexus: A Marriage of Convenience
  3. The concept: The relationship between the water used for energy production (primary energy and electricity production) and energy consumed to extract, purify, deliver, heat/cool and dispose of waste water. All forms of energy production consumes water directly or Indirectly and Energy is needed access to water and make it usable The Water – Energy Nexus: A Marriage of Convenience
  4. Water Systems Energy Needs Source: International Energy Agency
  5. Source: United States Department of Energy (DOE) Energy Systems Water Needs
  6. The vulnerability of energy to water constraints India (2012): Delayed Monsoon Blackouts lasting several days - Over 600 million people. China (2011): Drought Limited hydro generation along the Yangtze river - Electricity rationing. Vietnam and Philippines (2010): Drought (the El Niño weather phenomenon). Reduced hydro generation and causing electricity shortages. China (2008): Dozens of planned coal-to-liquids (CTL) projects were abandoned due in part to concerns they would place heavy burdens on scare water resources Southeast United States (2007): Drought Tennessee Valley Authority curtailed hydro generation, reduced output from nuclear and fossil fuel-based plants to conserve water. Midwest United States (2006): Heat wave Reduced output from nuclear plants because of the high water temperature of the Mississippi River. France (2003): Heat wave Reduced output from nuclear power plants equivalent to the loss of 4-5 reactors - Estimated €300 million to import electricity by Électricité de France (EDF). Australia, Bulgaria, Canada, France, U.S (parts): Public concern over potential impact of unconventional gas production on the environment and water resources prompted additional regulation and, in some jurisdictions, temporary moratoria or bans on hydraulic fracturing (IEA 2012).
  7. Concluding Remarks Managing water and energy resources require: The nexus approach – Systems integration Biofuels vrs. Food and Water Security. Electric Cars vrs. Water Security. @ Environment @ Climate change @ Economic aspects @ Social aspects @ Population growth @ Food security Water Energy Nexus conflicts, synergies and trade-offs
  8. References: Biggs et al., 2015. Sustainable development and the water–energy–food nexus: A perspective on livelihoods. Cheng, H. (2009). “Meeting China’s Water Shortage Crisis: Current Practices and Challenges.” Environmental Science & Technology, 43(2), 240-244 Copeland, C., 2014. Energy-Water Nexus: The Water Sector’s Energy Use. Gleick, P. (1994), “Water and Energy”, Annual Review of Energy and Environment, Vol. 36, No. 3, Annual Reviews, Palo Alto, United States, pp. 267-299. Griffiths-Sattenspiel, B. and Wilson. W., 2009. The Carbon Footprint of Water, River Network, Hereinafter, The Carbon Footprint of Water. Ringler, C., Bhaduri, A., Lawford, R., 2013. The nexus across water, energy, land and food (WELF): potential for improved resource use efficiency? Curr. Opin. Environ. Sustainability 5, 617–624. King C.W & Webber M.E., 2008. The Water Intensity of the Plugged-In Automotive Economy. Environ. Sci. Technol., pp 4305–4311 Available at: Schornagel, J., et al. (2012), “Water Accounting for (Agro) Industrial Operations and its Application to Energy Pathways”, Resources, Conservation and Recycling, Vol. 61, Elsevier, Amsterdam, pp. 1-15. Torcellini, P., N. Long and R. Judkoff (2003), Consumptive Water Use for US Power Production, National Renewable Energy Laboratory, Golden, United States. U.S. Department of Energy. 2006. Energy demands on water resources: report to congress on the interdependency of energy and water. Sandia National Laboratories, Albuquerque, New Mexico, USA.