Submitted by: drexel und weiss energieeffiziente haustechniksysteme gmbh
Implemented country: Austria
Title: Sustainable Renovation Approach for Factory Hall
In cooperation with the owner, Drexel und Weiss Energieeffiziente Haustechniksysteme GmbH reconstructed a production hall which had been built in 1969 and was unused for years. Before the reconstruction, the building had an energy index of 120 kWh/m² per year. Afterwards a passive house standard was attained with an energy index of 10 kWh/m² per year. Therefore the energy saving is 325 MWh per year and CO2 emissions were reduced by 120 tons per year. The additional costs amounted to € 104.000; due to the lower heating load, it was possible to minimize the HVAC systems, which led to a savings of € 98.000.