Die Bundesregierung hat sich im Energiekonzept das Ziel gesetzt, den Primärenergiebedarf im Gebäudesektor um 80% bis 2050 zu reduzieren und die energetische Sanierungsrate von 0,8% auf 2% zu erhöhen. Das 2% Ziel liegt unter der derzeitigen 3%igen1 allgemeinen Sanierungsrate von Außenwänden...

In the 2010 Energy Concept, the German government committed to reducing the primary energy requirement of buildings by 80% by 2050 and to increase the thermal retrofit rate from 0.8% to 2% per year. The 2% target is less than the 3%1 rate at which outer walls are currently being renovated each...

The German government has committed to reducing the primary energy demand of buildings by 80% by 2050. Achieving this reduction will require foremost efficiency improvements, with a first milestone of a 20% reduction in heat demand levels by 2020. Given that about 80% of today’s building stock...

Executive Summary The German government aims to reduce primary energy demand by 80% until 2050 and heating demand by 20% until 2020. Besides the need for additional efforts to achieve these targets, Germany has already implemented a set of policies and programmes to increase investments in...

Recent global peer-review reports have concluded on importance of buildings in tacking the energy security and climate change challenges. To integrate the buildings energy efficiency into the policy agenda, significant research efforts have been recently done. More specifically, the public...

Buildings account for about 40% of the final energy consumed in Germany and arguably offer both low-cost and large scale energy efficiency improvement potentials. The Energy Performance Certificate (EPC) was recently introduced to capture this potential by providing information about the energy...