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...