Construction begins on a large-scale solar DH system in Germany

  • Industry News
  • 20 August 2019

Arcon-Sunmark begins construction of a large-scale solar district heating system in Bernburg. It is the third project to be initiated in Germany in 2019, and Arcon-Sunmark expects further projects to be announced due to an increase in both general interest and demand.


Baudoku Solarthermie Anlage Römerhügel. Flug vom 14.08.2019 KW33.
Foto: Stadtwerke LB/

On behalf of Stadtwerke Bernburg large-scale solar heating specialist Arcon-Sunmark has begun construction of the second-largest solar district heating system to date in Germany. Construction is expected to be completed in November, and the system will have an annual yield of 2,300 MWh with a peak effect of 5.6 MW. 632 collectors with a total aperture area of 7,938 m2 harvest energy from the sun which is transformed into district heating.


“Stadtwerke Bernburg is renowned for being one of the frontrunners in reducing CO2-emissions via investing in renewable energy. We are proud to have been chosen as a partner for this project. Large-scale solar heating is one of the most effective and cost-efficient of all the renewable energy technologies, and the people of Bernburg will benefit from this investment for many years to come,” says Thomas Karst, CEO, Arcon-Sunmark.



Berlin project raised awareness

The project in Bernburg is Arcon-Sunmark’s third so far in Germany this year. In May construction of a 3.3 MW system in Halle began and in July construction of the biggest large-scale solar district heating system in Germany was initiated in Ludwigsburg. The latter has a peak capacity of 9.6 MW. Several other projects in Germany and Central Europe are currently being outlined, and it is expected that new projects will be confirmed very soon. In May 2018 a pioneering large-scale district heating project in Köpenick, Berlin was handed over to Vattenfall. The project has attracted a lot of attention from energy suppliers and political decision-makers from all over Germany.


“The system in Köpenick has been a game-changer for us in the German market. In Germany there has been a general interest for large-scale solar heating for many years, but now interest very often is replaced by concrete dialogue and outlining of projects,” says Thomas Karst.



Further information, please contact:

  • Thomas Karst, CEO, Arcon-Sunmark, mobile tel. +45 20 82 40 33
  • Klaus Risom, Communications Consultant, mobile tel. +45 29 16 59 99
  • Website:


About Arcon-Sunmark A/S

Arcon-Sunmark is an international engineering, production, and trading company operating in the solar heating sector and supplies everything from solar collectors to large complete turnkey solar heating plants, which includes the design, dimensioning and installation of plants. Arcon-Sunmark is owned by VKR Holding A/S. VKR Holding is a holding and investment company which creates value through investments and ownership of companies that develop, produce and market products useful to society. The products bring daylight, fresh air, and a better environment into people’s everyday lives. In total, VKR Holding companies employ approximately 16,000 people in more than 41 countries.

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