Danfoss signed up to EP100 in 2016 when launching the company's latest and most ambitious climate strategy. We aim at doubling the energy productivity in the Group before 2030 and have already improved it 77% since 2007.
Initiatives we are part of
Carbon Pricing Leadership Coalition, Sustainable Energy for All, Sustainable Cooling for All,UN Caring for Climate Initiative, The World Bank Group and the United NationsGlobal Compact’s Statement on Putting a Price on Carbon, Business Leadership Criteria on Carbon Pricing, WEF Climate Leaders Open Letter, We Commit-Business for Energy Efficiency at COP21, Paris Pledge for Action (through ICC), Global Alliance for Energy Productivity, Global Alliance for Energy Productivity, We Mean Business.
From energy consumer to energy neutral
Every time you flush your toilet, it takes a lot of energy to treat and clean the waste water. According to the International Energy Agency, water and waste water facilities account for around 4% of global electricity consumption. Additionally, 30-50% of a local authority’s electricity bill is spent on the water sector. Because of the major load variations, real-time automatic process controls have the capability to lead to amazing energy savings.
By optimizing existing facilities, and introducing sensors, and variable speed drives, water, and waste water facilities can run at a rhythm adapted to the water load. This is what we call digitalization – and it can offer both energy savings and increased energy production from your toilet flush. In fact, waste water facilities can produce more than enough energy to cover the waste water treatment process and beyond. How? The energy is contained in the sludge - a by-product of the waste water treatment process - and can be recovered as biogas. The biogas can then be used to serve the energy needs of the water and wastewater treatment process. The surplus energy produced can be used to provide drinking water or even heat up our homes.
The future is here
Turning a city’s largest energy consumer into a producer of energy is a game changer and it has been done. Today, the city of Aarhus, which shelters 200 000 inhabitants, has succeeded to make the whole of its water cycle energy neutral. As side effects, water losses have been reduced to around 6%, and, in 2016, the price of water dropped by 9% for consumers. This is replicable to existing facilities. Achieving energy neutrality of the water cycle has a payback time of typically 2-5 years and results in improvements at a rate of approximately 70%. So, the next time you flush your toilet, remember its hidden power. We are engineering a highly intensive water sector into an energy-neutral party. These best-available technologies can make the wholewater cycle significantly more energy efficient, help cities reduce water needs and thus meet their ambitious sustainability targets.
Find out more about Danfoss sustainable actions here.
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