ACTIVE Package Tag

Around 70% of the total of 18 million residential buildings in Germany were built before 1979, i.e. at a time when there were no or extremely low energy efficiency requirements. According to a study by the Institute for Living and the Environment, 25-30% of these existing buildings have been modernized. As a result, nearly 9 million residential properties in Germany have not yet been upgraded, or have been upgraded only slightly in terms of energy efficiency.