Large-scale heat pumps (LCHP) operated with greenhouse gas-free electricity could make a sustainable, economically effective contribution to decarbonizing the heat supply, since a large proportion of CO2 emissions in Germany are related to this heat supply. In Living Labs of the Energy Transition “Large-scale heat pumps in district heating networks - installation, operation, monitoring and system integration", the facilities will be connected to district heating networks for the first time in Germany.
By the end of the project in 2026, large heat pumps will be integrated into existing district heating systems at five locations. In addition to technical awareness, solutions on how regulatory and economic framework conditions could be adapted to establish large-scale heat pumps in the district heating market are analyzed. The emphasis on the research at Fraunhofer ISE is on the conceptual as well as metrological analysis of large heat pump systems with their individual system integration in site.
The Living Laboratory Large-scale heat pumps (LCHP) searches for solutions to optimally integrate large-scale heat pumps into the German energy system. The project network works together to accomplish its mission and consists of AGFW-Projekt GmbH, EnBW, Fraunhofer ISE, the Neukölln district heating plant, MVV Energie, Stadtwerke Rosenheim, Vattenfall Wärme Berlin, and the Institute IER of the University of Stuttgart. It is the third Living Laboratory of the energy transition in the research area of buildings and neighborhoods.
The aim is to operate large heat pumps more economically in Germany. So far, subsidies have been needed; the charges and the levies on electricity for the end consumer are very high. Additionally, tangible experience on how large heat pumps can be optimally integrated into the German energy system is missing.
In Berlin, Stuttgart, Mannheim and Rosenheim, large-scale heat pumps are being installed at power plant sites. Those power plant sites are planned by the property partners to be close to already existing heat generator sites. Sufficiently high heat source capacities should be available on site, in order to remain the costs of connection for the new technologies as low as possible.