ENGINEERING TOMORROW is realizing the potential of an energy-neutral water sector According to the International Energy Agency’s 2016 World Energy Outlook report, the water sector is currently responsible for 4% of global energy consumption. This figure is expected to almost double over the next 25 years. At a local level, the water cycle accounts for 30-50% of municipalities’ energy bills. Achieving an energy-neutral water industry yields huge benefits, both economically and environmentally. Learn more at danfoss.com/energy-and-water Remove the water sector from municipalities’ electricity bill Save water by reducing leakage across the distribution network Generate a strong return on investment Energy neutrality Reduced water bills for residents Improved air quality as a result of reduced CO2 emissions BENEFITS Increase the capacity and lifetime of treatment facilities With a coordinated suite of policy measures, the World Energy Outlook predicts possible energy savings of 270 TWh and the generation of an additional 70 TWh of electricity by 2040 – equivalent to around 70 large (800 MW) coal-fired power stations. The technologies to decouple the water sector from energy use already exist Aarhus is the second largest city in Denmark and the rst place in the world where the local water company has succeeded in achieving energy neutrality across the whole water cycle for a catchment area of 200,000 people. This was possible through advanced process optimization and by using more than 290 variable speed drives as control handlers on almost all rotating equipment. Water Production Water Distribution Wastewater Pumping Wastewater Treatment Energy Production Energy reduction: 20%-45% Energy reduction: Energy reduction: 20%-40% 5-25(50)% Leakage reduction: 30%-40% Energy reduction: 25-60% Energy production increase: 20-60% 40% energy savings across the entire water cycle 6% the level to which total water loss can be reduced 130% energy surplus generated by Marselisborg WWTP Energy Neutrality
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