The German government aims at a climate-neutral building stock by 2050 to reach the goals defined in the Climate Action Plan 2050. Increasing the energy efficiency of existing buildings is therefore a high priority. For this purpose, investments of private homeowners will play a major role since...

Residential heating accounts for almost one-fifth of Germany’s final energy consumption. This report evaluates an extensive database of heating bills for buildings with two or more apartments, representing more than two-thirds of the total housing stock in Germany. Despite commitments to...

Das Beheizen von Wohnräumen macht fast ein Fünftel des Endenergieverbrauchs in Deutschland aus. Der vorliegende Bericht wertet einen umfangreichen Datenbestand von Heizenergieabrechnungen von Zwei- und Mehrfamilienhäusern in Deutschland aus – diese repräsentieren mehr als zwei Drittel des...

This paper explores the impact of retrofitting single-family residential buildings in historic districts with energy efficiency measures that are compliant with the 2012 version of the International Energy Conservation Code (IECC). This study focuses on Sears's kit homes that were built in the...

Despite a common EU directive on energy efficiency in residential buildings, levels of energy efficiency differ vastly across European countries. This article analyses these differences and investigates the effectiveness of different energy efficiency policies in place in those countries. We...

The German government aims at a climate-neutral building stock by 2050 to reach the goals defined in the Climate Action Plan 2050. Increasing the energy efficiency of existing buildings is therefore a high priority. For this purpose, investments of private homeowners will play a major role since...