HeatNet: application of low-temperature heating network in the city

New generation of heating networks

Heating networks have existed for almost 150 years. The first heating networks were introduced in 1880. Traditionally, they require high temperatures. Due to new technologies in buildings, such as the emergence of new heat pumps (an alternative to central heating) and underfloor heating, these high temperatures are no longer necessary.

For this reason, a new generation of heating networks that operate at much lower temperatures (just 30°C to 70°C) is being developed. These new heating networks are called fourth generation heating networks, or 4DHC. They have a number of advantages. As a result of the lower temperatures there are more suitable sources of residual heat and less heat is lost during transport. However, the implementation of this new generation of heating networks requires a new policy. HeatNet contributed to this.

Analysis of obstacles to implementation

The project consisted of six pilot projects (living labs) in Kortrijk (Belgium), Heerlen (Netherlands), Dublin (Ireland), Aberdeen and Plymouth (Great Britain) and Boulogne-sur-Mer (France). These cities were testing and improving the HeatNet model. The AUAS was tasked with analyzing the progress of these pilots by conducting researcher evaluations. In particular, AUAS researchers were looking at the obstacles experienced by cities when implementing the HeatNet model in their cities.

The next step was to find solutions. Possible obstacles might include:

• a river running through the city (physical obstacle);
• the loss of a heating supplier (financial obstacle);
• government legislation and regulations (political obstacle);
• delay due to stakeholders blocking the project (organisational obstacle).

Roll-out of the heating network in cities in North-West Europe

Various heating networks were realised during the project. The knowledge and experience acquired during these pilots was combined in a HeatNet model. This knowledge will be used to roll out more fourth-generation heating networks in North-West Europe. The parties involved in the HeatNet study were developing a roadmap with a long-term vision for this purpose.

Partners and funding

HeatNet was a partnership between the Amsterdam University of Applied Sciences, City of Dublin Energy Management Agency Ltd, Plymouth City Council, CAP 2020 asbl, Stad Kortrijk, Intercommunale Leiedal, Energy Cities, Ville de Boulogne-sur-Mer, Ghent University, Aberdeen City Council, Mijnwater B.V., South Dublin County Council, Centre d'études et d'expertise sur les risques, l'environnement, la mobilité et l'aménagement. The project was funded by Interreg North-West Europe.

Contact

For more information about HeatNet, please contact Renee Heller.