Concepts for the reduction of conventionally generated heat distribution losses in solar-assisted multi-family houses

Oliver Mercker, M.Eng.
Tel.: +49 (0)5151-999 631

Schematic diagram of a system for all-the-year exclusive distribution of solar and environmental heat
With advanced insulation standard in multi-family houses (MFH) heat losses of the heat distribution and domestic hot water systems cover rising amounts of the space heating demand. This research project investigates new heat supply and distribution concepts for MFH, using system simulations (TRNSYS) with the focus on partial decentralization. The project aim is to minimize losses of conventionally generated heat by specific integration of solar and ambient heat as well as using a time-based decentralized back-up heating. The most promising concepts will be realized within a successive project.


O. Arnold, O. Mercker, J. Steinweg, G. Rockendorf: Efficiency Analysis of Solar Assisted Heat Supply Systems in Multi-Familiy Houses. Conference Proceedings, EuroSun 2016, Palma de Mallorca, October 2016 All other contributions are available in German only. You can access them in the German section of this site.

Project partner


01.07.2013 – 31.08.2016

Final report

The final report of the project can be found here!


The project ‘Reduction approaches for conventionally generated heat distribution losses in solar-assisted multi-family houses’ (FKZ 03ET1194A) is funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) based on a decision of the German Parliament.

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