The water-energy nexus repowering the EU

The water-energy nexus is the interdependency of water and energy: energy is needed for abstracting, storing, treating or disposing water but also for moving, heating and cooling water across industrial cycles, while water is also heavily used for the generation and transmission of energy. The nexus holds the potential to generate large-scale energy and water savings across sectors and reduce greenhouse gas emissions.

The energy use by water and wastewater infrastructure amounts to about 4% global electricity consumption and 3,5% in the European Union (IEA, 2016).

Water utilities can become energy neutral and even energy positive with existing technologies and low costs of investments.

The revision of the EU Urban Wastewater Treatment Directive (UWWTD) represents a key opportunity to deliver the transition in the sector. A good way forward would be introducing an energy efficiency target for wastewater treatment plants of a certain size, for example bigger than 10,000 in population equivalent (p.e.). Mandatory energy audits for wastewater treatment operators which include measuring water efficiency could also help advance the energy efficiency of the sector.

This would reinforce and echo new provisions on water and the energy savings obligations for public bodies, currently being negotiated by co-legislators in the Energy Efficiency Directive (EED) recast.

Digitalisation in the water sector is an important enabler towards energy neutrality. In wastewater treatment, existing digital solutions can achieve significant energy savings with limited investment needs (no civil engineering or hardware costs) within a short period of time. Intelligent pumps for wastewater management, for example, can save up to 70% energy per utility with 80% inventory reduction, thus lowering costs for utilities.

Saving water, saves energy and saving energy saves water. It is now time to advance energy efficiency and “RePower” the EU through the water-energy nexus!

by Tania Pentcheva
Senior Manager Government and Industry Relations
Xylem Inc.  

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Decarbonising heating and cooling: the time variable

Fossil fuels used for heating and cooling are responsible for 12% of the total EU CO2-equivalent emissions and for 28% of the yearly EU energy consumption. Furthermore, as shown by the latest figures released by the Coolproducts campaign, only about 17.3% of the heating appliances installed in European homes are powered by electricity or use clean technologies.

The EU Copernicus Climate Change Service has demonstrated how close we are to reaching a global warming of 1.5°C, foreseen now for February 2034. In the IPCC Climate Change 2021: the Physical Science Basis report, it is noted that while strong and sustained reduction in emissions of carbon dioxide (CO2) and other greenhouse gases would limit climate change, it could take 20-30 years to see global temperatures stabilise. Even with a carbon-neutral planet in 2050, global temperatures would stabilise no earlier than 2070.

Technologies to replace gas, oil and coal boilers have been there for years, manufacturers are ready and consumers are in favour of the switch.

The International Energy Agency’s ‘Net-Zero by 2050’ argues that if the world is to achieve net-zero emissions by the middle of this century, no new fossil fuel boilers should be sold from 2025 onwards.

EU decisionmakers should include this ban in forthcoming EU legislation. With the continued installation of fossil fuel boilers in European buildings beyond 2025, the risk that they will still be in place in 2050 is almost certain, thus undermining the  EU climate neutrality goal.

 

by Sergio Andreis
Director of Kyoto Club  

 

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It’s time to tap the great potential of digital solutions to decarbonise our buildings

Digital solutions are essential to the rapid decarbonisation of buildings and could contribute significantly to achieving the 1.5°C pathway. Often underestimated, it is now time to embrace this new set of technologies. In other words: crack modern problems with modern solutions. Not only does digital bring significant carbon reduction, but it also comes with very competitive paybacks and shows significant future potential. Digital technologies focus on the actual energy use of building occupants, resulting in faster paybacks, on average less than eight years (for tertiary buildings on average less than five years). Also, digital efficiency solutions bring 20-30 percent carbon abatement across the building stock. But most importantly, this toolbox of digital solutions is already available, quickly deployable, and is applicable across all the current building stock. The potential carbon abatement of digital solutions – around 1 Gt CO2/y (1) – in the building stock is thus highly underestimated.

The EU set itself the ambitious target of becoming the first climate-neutral continent in 2050. To achieve this goal, the penetration of digital efficiency solutions is ultimately inevitable. The real question, given their multiple benefits, is not to qualify the need for such technologies, but how to create the right framework to accelerate their deployment across the board rapidly.

 

Bertrand Deprez
Vice President EU Government Affairs
Schneider Electric

 

(1) IEA 2021 Net Zero scenario and under the assumption that 2/3 of the existing stock is still standing by 2050, new build is zero-carbon, all additional electricity demand (for the new stock) is zero-carbon and 100 percent digital technologies penetration.

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EU-ASE at CAN Europe’s high level event on Fit for 55

On 14 October, the president of the European Alliance to Save Energy, Monica Frassoni, participated in the high-level event “Accelerating climate action in the EU and Member States through the Fit for 55 package and National Planning Processes”, organised by Climate Action Network Europe.

Monica Frassoni took the floor during the first panel discussion “Enhancing EU’s climate ambition through the Fit for 55 package”. Speakers included Diederik Samsom, Head of Cabinet of European Commission First Vice-President Frans Timmermans; Ursula Woodburn, Corporate Leaders Group Europe; Benjamin Denis, IndustriAll Europe; Marcin Kowalczyk, WWF Poland and Wendel Trio, CAN Europe.

The recording of the panel can be found here.

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Smart technologies for energy-efficient, decarbonised and more comfortable buildings

On 14 October, EU-ASE, together with eu.bac and LightingEurope organised a webinar on the review of the Energy Performance Of Buildings Directive (EPBD) and the role of smart technologies to make EU building stock energy-efficient, decarbonised and more comfortable.

Most of the potential of digitalisation is still unexploited in buildings. The revision of the EPBD creates a unique opportunity to deploy a broad range of energy-efficient and smart technologies, from Artificial Intelligence, to Building Automation and Control Systems or smart lighting, among many other solutions.

The recording of the event is available here
The slides used during the presentation can be found here
The result of the polls here

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