Residential heating is responsible for one-fifth of Germany’s energy consumption. Heating costs were around 562 euros per year for an average apartment in 2016, which is more than a 13th month’s rent minus heating costs (Kaltmiete). These are the findings of the 2016 Heat Monitor, published...

Understanding the determinants of home-efficiency improvements is significant to a range of energy policy issues, including the reduction of fossil fuel use and environmental protection. This paper analyzes retrofit choices by assembling a unique data set merging a nationwide household survey...