Online Conference: Heating Without Gas or Oil – But Where Will Future Heat Come From?

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Date: Thursday, December 4th 2025
Time: 6:15 p.m. – 8:00 p.m.

 

Speaker: Raphael Gruseck
He is Head of the District Heating Department at the Ludwigsburg District Energy Agency (LEA e.V.) and is also responsible for the regional advisory office Stuttgart-West on municipal heat planning. He supports municipalities in the region in developing and implementing their local heat plans.
As Managing Director of Wärmenetz Steinheim GmbH, he was involved in the design and implementation of one of the first low-temperature district heating networks in existing buildings in Steinheim an der Murr, as well as several other heating network projects in the region.

 

The conference will be in German with a translation to English.

 

Programme

In our homes, we currently use around two-thirds of our total energy for heating. In Luxembourg, heating residential buildings requires about 12,000 kWh per year (by comparison: the transport sector accounts for about 17,000 kWh). However, less than 20% of this energy currently comes from renewable sources. Decarbonising this sector is therefore one of the biggest challenges of the energy transition.

To meet climate goals, the use of renewable heat sources must be significantly increased while fossil-based heating systems are gradually phased out. However, not everyone can install a heat pump at home — nor would it always make sense or be feasible, particularly in densely populated areas where houses have no basements or gardens.
Therefore, the state and municipalities need to advance strategic heat planning to determine where and what type of renewable heat generation is possible. This allows for a systematic approach to developing district heating networks and similar infrastructure.

Further technical innovations are also needed in industrial processes.

The speaker will explain what types of heat sources exist and under which conditions each can be used most effectively.

 

Key topics to be addressed:

  • What heat sources are available, and what are their respective advantages and disadvantages (waste heat from industrial processes, biomass, biogas, geothermal energy, solar thermal)?
  • When are district heating networks preferable to heat pumps? Can heating networks be built everywhere? How should priorities be set? How complex is the construction of such networks?
  • What is the timeline for the heat transition?

 

Registration required by e-mail at inscription@meco.lu or by phone at 43 90 30 – 1.

 

Certificates of participation can be issued upon request.

 

You can download the invitation here.

 

12.11.2025