5th World Water Forum Istanbul March 2009 Water for energy, energy for water: The water footprints Prof. Torkil Jønch Clausen DHI Water Policy.

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Presentation transcript:

5th World Water Forum Istanbul March 2009 Water for energy, energy for water: The water footprints Prof. Torkil Jønch Clausen DHI Water Policy

Energy and Water Development Water for energy Energy and power production requires water:  Thermoelectric cooling  Hydropower  Minerals extraction and mining  Fuel production (fossil, non-fossil and bio-fuels)  Emission controls Energy for water Water production, processing, distribution, and end-use requires energy:  Pumping  Transport  Treatment  Raw water (GW,SW)  Desalination Water footprints for energy development Energy footprints for water development

Water consumption - before the era of biofuels! Where will the extra water come from? We need to increase the efficiency of water use Source: Shiklomanov; ”World Water Resources at the beginning of the 21st century”, IHP-UNESCO, 2000

Water & Traditional Energy

Freshwater Withdrawals

Preamble 16 of EU Water Framework Directive “Further integration of protection and sustainable management of water into other Community policy areas such as energy, transport, agriculture, fisheries, regional policy and tourism is necessary. This Directive should provide a basis for a continued dialogue and for the development of strategies towards a further integration of policy areas.” Integration? – not yet

Water Footprints: A policy tool? A ”water footprint” is the amount of water consumed to provide a good or service. For energy: based on water consumed for –Production/extraction of raw materials –Refining raw fuels –Producing energy at a power plant

Water Footprints : some everyday examples ProductWater consumed ProductWater consumed (liters) (liters) 1 glass beer 75 1 cup coffee glass milk cotton T-shirt hamburger liter bio-ethanol pair leather shoes8000

Water footprints for energy: Water consumed by energy type Energy type Water consumed (m3/MWh) Wind0.001 Gas1 Coal2 Nuclear2.5 Oil/Petrol4 Hydropower68 Bio-fuel, 1 st gen. (corn, US)184 Bio-fuel, 1 st gen. (sugar, Brazil)293 Sources: DHI Water Policy, 2008

Thank you