Status quo of energy renovation in Germany

Enter-Report provides comprehensive insights based on exclusive data from over 10,000 energy consultations, 5,650 building data sets and 1,000 property owners surveyed. Here are the most relevant findings in advance:

• 44 percent of homeowners do not know the energy efficiency class of their house
• Complexity of legal requirements inhibits interest in restructuring
• The vast majority are open to energy-saving renovations.

The data sets show, among other things, that ignorance and uncertainty can stand in the way of renovation. In particular, the modernization of heating systems stands out as a key factor.

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Interestingly, the choice of heating systems also reflects regional preferences: while natural gas dominates nationwide, heating oil is particularly common in Bavaria and Saarland. In eastern German states such as Saxony, heating systems with renewable energy sources are already used more frequently than average.

The study shows large differences in the payback periods of various renovation measures. While heat pumps (12 years) and basement ceiling insulation (15.2 years) pay for themselves relatively quickly, measures such as installing roof windows have a very long payback period of 62.3 years. Funding also plays an important role here. However, the funding landscape in Germany is complex and varies greatly between federal states. Due to their complexity, the regulations are difficult for many to understand and inhibit interest in energy-efficient renovation.

With an average payback period of 12 years and a high subsidy rate of 52.3 percent of the market price, heat pumps are particularly attractive for homeowners. The technology makes it possible to significantly reduce energy consumption while switching to renewable energy sources. With an average purchase price of €32,940, this results in a state subsidy of up to €17,227.