Paper Conference

Proceedings of BauSim Conference 2012: 4th Conference of IBPSA-Germany and Austria


Development of strategies for energy-positive residential buildings in Switzerland

Christian Struck, Johannes Maderspacher, Urs-Peter Menti

Abstract: In this study the authors use building performance simulation to investigate the potential of state of the art technologies to support the identification of strategies for energy-positive building refurbishments, also plus-energy buildings. The methodology involves numeric optimization and parametric studies. The building case studied is a two-story one-family home with a double pitched roof. The building is representative for buildings erected before 1980 with a market share of more than 50%. Technologies considered include heat pumps in combination with PV-panels and solar thermal collectors. Two types of solar thermal collectors are differentiated: roof- and façade collectors. The results show that buildings oriented East/West have a higher potential to achieve a positive annual energy balance than buildings oriented North/South buildings. Further, the resulting twice peaking profile of the generated energy can be used to balance generation and demand profiles. It could be confirmed that PVpanels in combination with façade collectors have the potential to achieve a positive annual energy balance for North/South oriented buildings.
Pages: 65 - 68