Project 5: Technologies and potential of seasonal heat storage systems

In the field of heat storage of residential buildings, innovative projections have existed since the middle of the 1990s regarding storage heat over several months. These technologies for long-term heat storage, also called seasonal heat storage, have been investigated and implemented in the context of several research and pilot projects. The stored thermal energy is used for the heating of connected residential buildings in solar small district heating systems. In the realised projects, the fundamental technical feasibility of seasonal heat storage has been shown. Current research is focused on analysis and make more economically viable of these storage technologies. Besides the analysis of evaluation of economy, there are other barriers in the future which must be overcome for market entry of long-term heat storage. The goal in the context of advancement of the technologies for long-term heat storage from a civil engineering point of view is to investigate the technical potential of seasonal heat storage which reduce the high life-cycle-costs and therefore improving the economy. The use of these innovative concepts for energy supply and energy storage requires improved economic aspects and also general acceptance. This research paper is focused on the potential of reducing life-cycle-cost and also on questions of social impacts and connected social acceptance.
 

Doctoral Candidate: Anna-Elisabeth Wollstein-Lehmkuhl

First (Main-) Supervisor: Prof. Dr. Rainer Schach

Second Supervisor: n.n.