Energy from Earth's interior provides heat to Jutland's capital
The geothermal plant in Skejby will utilize the renewable energy from the earth's interior to provide sustainable and stable district heating to the city and ensure sustainable heat supply from 2025. Solid Energy's heat pumps play a key role in the plant.
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In Aarhus, a unique plant has been built that will set the direction for district heating plants in Denmark and Europe. The plant extracts energy from the earth's interior and converts it into district heating, which the citizens of Aarhus can enjoy. The first part of the project will be built in Skejby, and the facility here will be equipped with an advanced heat pump station of 18MW.
An important piece of the project is the 10MW hydrocarbon-based heat pump, which was designed and integrated by Aalborg CSP in collaboration with Solid Energy.
- For the project, we needed a supplier who can handle the sometimes varying flow in the geothermal water and at the same time deliver the desired high flow temperature. Therefore, the choice fell on Solid Energy. In addition, Solid Energy offers heat pumps with great flexibility, which can be adapted to different temperature sets, says Klaus Knudsen, Head of FEED & Proposals at Aalborg CSP. He underlines that constructive and pragmatic cooperation contributed to good joint solutions, even when obstacles arose.
Constructive and pragmatic cooperation contributed to good joint solutions when obstacles arose.
The energy solution of the future is modular
The unique feature of this project is that the heat pump station draws hot water from underground, which is cooled. In this way, the heat pumps from Solid Energy can convert the energy from here into hot water of up to 95 °C. This water must supply the heating plants in Aarhus, which can supply heat to the area, with energy extracted from the earth's interior.
At the same time, the modular design of the plant makes it possible to deal with the natural variations that occur when using geothermal water, while ensuring a reliable heat supply to the district heating network.
The collaboration between Aalborg CSP and pump manufacturer Solid Energy, as well as Innargi and Circe shows how innovative technology and sustainable solutions can play together to deliver environmentally friendly heat to the cities of the future, which does not cost a fortune.
In addition to providing green energy, the plant has been designed with an eye to the needs of the future.
The building is architecturally adapted to its surroundings and designed to be used as a model for future geothermal installations. This is an important step towards a stable and renewable energy supply that can meet the needs of both Aarhus and the rest of the EU.
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