In the TEN.efzn research network, the transformation of the energy system in Lower Saxony (TEN for short) is being examined in an interdisciplinary and transdisciplinary manner in six research platforms and three transfer focal points. The heat research platform aims to transform Lower Saxony's heating sector, in which heat pump technology is being investigated as a central component. Heat pump technology not only efficiently upgrades heat from the environment, but also enables the coupling of the heat and electrical energy sectors. This takes place in two areas of innovation:

     I) large heat pumps for high temperatures (70 to 200 °C) and

     II) heat pumps for heating buildings.

Here at the Institute of Thermodynamics (IfT), as part of innovation area I), the use of a high-temperature heat pump with natutal refrigerants is being researched with regard to fields of application and application-related optimization measures. The aim is to achieve a holistic transformation process through exchange within the research network (e.g. with the “Social Dynamics” research platform), cooperation with partners from industry and supply, as well as participatory approaches.