Overview
In this project the functionality of a sorption heat storage system for the transfer of heat from summer
to winter is demonstrated for the first time. The city of Frauenfeld has prepared a newly constructed
building for the integration of a seasonal heat storage system based on the sorption process. Re-
search and development in this field is ongoing at the HSLU, and a proof-of-concept system on the
scale of a single-family home has been built and successfully operated in the laboratory. In coopera-
tion with the company Matica AG and based on the work done in the SFOE-funded project
SI/501605-01, a field demonstrator will now be built, installed and operated. This project will provide
valuable knowledge about the system integration of sorption heat storage in the building environment
as well as operational experience.
This heat storage technology has the potential to significantly reduce the winter electricity demand of
buildings for heating, thus acting as a low-cost virtual electric battery and contributing to the transition
to renewable energy.
