ReUseHeat Project - Newsletter #8

Let's not waste heat!


Urban waste heat sources are increasingly important to reach 2050 targets as fossil fuels are being phased out. The ReUseHeat project financed under the European H2020 framework, is generating knowledge on how excess heat from data centres, sewage water treatment, service sector buildings and metro stations can be reused in district heating systems. The project aims to overcome both technical and non-technical barriers to the unlocking of urban waste heat recovery investments across Europe.

In this newsletter, we are delighted to inform you about ReUseHeat replication studies, relevant publications and other initiatives that provide support on the implementation of waste heat recovery solutions. Read more and stay in touch!

Data Centres

The data centre has a significant cooling demand, producing excess heat - which is being fed to a low temperature district heating network


Underground Transport

Waste heat produced in the tunnel of the metro network will be recovered and reused in a local low-temperature district heating network


Waste Water Management

An integrated urban planning concept will include the innovative recovery of waste heat from a sewage system


Tertiary Buildings

An advanced solution based on heat recovery from a hospital's cooling production process is linked to the nearby district heating



ReUseHeat studies replication potential of waste heat recovery from data centres

Waste heat recovery from data centres (DC) is bound to play an important role for the energy system, since almost 100% of the electricity supply to the data centre is transformed into heat. Its recovery fosters greater energy efficiency for DC and supports the decarbonisation of district heating and cooling.

Vilniaus Šilumos Tinklai, the company managing District Heating in Vilnius and Telecentras, the national TV, radio and communication company, are now among the beneficiaries of the replication studies that ReUseHeat is providing for free to support the realization of investments in excess heat recovery across Europe.


Help us improve the ReUseHeat web-based visualisation tool!

To foster urban waste heat recovery projects, it is of great importance to quantify and locate the urban waste heat potential from non-conventional sources in the countries of the European Union. In this sense, a web-based visualisation tool has been created with real information about the potential of urban excess heat using data collected within the project.

The data collection is still in progress. We would like to invite waste heat owners across the EU to help us gather information about their residual heat by filling in the ReUseHeat questionnaire.


Low-Temperature District Heating Implementation Guidebook

On 7 September 2021, at the IEA-DHC 17th International Symposium on District Heating and Cooling in Nottingham, UK a guidebook for low temperature district heating was launched.

Our project coordinator Kristina Lygnerud has edited the book together with Professor Emeritus Sven Werner.

The report includes an important number of case studies with excess heat recovery from data centre in Braunschweig, Germany among others.


Celsius Forerunner Groups kick off autumn 2021 edition

With a systemic approach and based on peer-to-peer support, these groups work as sounding boards for cities to facilitate the planning and implementation of smart and sustainable heating and cooling solutions.

On 13 September, the Celsius Initiative kicked off the third round of the Forerunner Groups. There are currently five different groups supporting cities on the following topics: Financing, Fossil Free, Waste Heat, Low Temperature and Cooling.

Don't re-invent the wheel and join them!



Latest articles

"The potential of recovering waste energy - City activities can be used to green the city itself" by Kristina Lygnerud (IVL)


Latest scientific publications

"Model-Based Contract Design for Low Energy Waste Heat Contracts: The Route to Pricing" by Edward Wheatcroft, Henry P. Wynn, Victoria Volodina, Chris J. Dent and Kristina Lygnerud


This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 767429

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