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100 climate solutions from Danish Municipalities


Middelfart is using the natural warmth of the Earth as a decentralized heating option to heat houses in the municipality.

In Båringe and Brenderup in the Middelfart Municipality, a number of vertical geothermal heat pumps are being installed to supplement the existing district heating. The pumps are connected to horizontal and vertical plastic hoses in the ground, which are expected to contribute to cheaper heating and make converting to green energy a possibility for more people.


With “Termonet” technology, geothermal heat energy is to be extracted and distributed in a smart grid. This merging of district heating and individual heat pumps has the potential to spread the coverage of the district heating grid from 64% at present to almost 100%. The project, created in collaboration between the municipality, Ewii Production and TREFOR, will reduce the amount of fossil fuels used in the heat supply. At the same time, there is potential for utilizing Termonet technology in order to cool data centers in computers or cool homes, if implemented in a warmer climate.

Middelfart Municipality is building new thermal power plants. These will become integral to the area's settlements and harvest warmth from the ground.

How the Global Goals are addressed

Affordable and Clean Energy

Geothermal heating can replace conventional heat sources and thereby reduce the use of fossil and organic fuels. In turn, this reduction leads to reduced CO2 emissions.

Industry, Innovation and Infrastructure

Installing ground source heat pumps is a way of upgrading existing heating infrastructure to be more sustainable, with low levels of CO2 per unit of value added.

Sustainable Cities and Communities

The project has the potential to make rural and urban areas self-sufficient with sustainable ground source heat from a decentralized plant.