Demonstration of German Energy Transition in Zwickau (ZED) - Presentation of Concept

This paper discusses the general conception of a local district heating system for the implementation of a zero-emission quarter in Zwickau (living lab). The heat supply is to be provided by regenerative energy sources. For this purpose, solar thermal collectors, seasonal thermal energy stores, an electrical energy storage and heat pumps will be utilized. Сoncepts of combining solar thermal systems with heat pumps exist for a long time. Therefore, this paper introduces the first two such solar thermal systems in Germany and gives an overview of other similar projects. Subsequently, an overview of the suitable thermal energy stores is provided. Keywords—collector, district heating, heat pump, living lab, solar thermal, store, water, zero-emission quarter