The building sector is a key focus area of the Energy Concept of the German Federal Government, among other reasons because it has the potential to avoid a large share of CO2 emissions while also saving costs. Thus far, however, only a small percentage of residential building owners have...

Conducting a building thermal efficiency retrofit (or further thermal retrofit) is a long and relatively complex decision-making process involving building owners, managers, residents/tenants, and construction industry professionals. A variety of information instruments exists to support...

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 and to attaining a thermal retrofit rate of 2%. Achieving both goals will require deep thermal retrofits across the existing building stock. To meet this challenge, the government is exploring...

Eine energetische Gebäudesanierung (Sanierung zur Erhöhung der Energieeffizienz) erfordert einen langen, relativ komplexen Entscheidungsprozess für Gebäudeeigentümer, -verwalter, Mieter sowie Bauhandwerker. Es gibt verschiedene Möglichkeiten diese Akteure in Ihren Entscheidungen durch...

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...

Der Gebäudesektor ist ein Schlüsselsektor des Energiekonzepts der Bundesregierung, unter anderem da sich in diesem Sektor ein Großteil der CO2 Emissionen mit Gewinn einsparen lässt (Levine et al. 2007). Bisher führt allerdings nur ein geringer Teil der Wohngebäudebesitzer umfassende...

In the European Emission Trading scheme the supply of allowances exceeds emissions - cumulating, according to our estimates, in a surplus of 2.7 billion tonnes by 2013/2014. We find that initially the surplus was acquired by power companies so as to hedge future carbon costs. As the surplus...