solSPONGEhigh - High solar fraction through thermally activated building elements in urban energy systems

Within the scope of this project the intensive use of thermally activated building elements (TABs) as an additional thermal storage in different buildings, with solar technologies (thermal, PV) preferred for energy supply, is investigated. The aim is to activate and use the thermal storage potential that is immanent in the building elements and thereby achieve solar coverage of the building's heat demand of nearly 100 %. The implementation of heat pumps into the system is evaluated as well as the integration of a ground collector below the ground slab of the building for extra heat storage. Further issues in analyses are smoothing peaks in the electric grid and the heating network respectively as well as benefiting from synergies in a union of buildings.