Das Wärme- und Wohnen-Panel zur Analyse des Wärmesektors: Ergebnisse der 3. Erhebung aus dem Jahr 2023
In the summer of 2023, the third survey of the German Heating and Housing Panel (GHHP) established as part of the BMBF-funded Kopernikus project Ariadne was conducted among approximately 15,000 households. The GHHP links information on the building stock and final energy demand with the socioeconomic characteristics of the households living in the buildings. This article summarizes the key findings of the third survey. One focus was on the implementation of twelve specific energy-saving measures that were mentioned to respondents in the second survey so that they could prepare themselves for the impending gas shortage and high energy prices in the winter of 2022. The third survey asked which of these twelve measures, which included turning off the heating when away and bleeding the radiators, the respondents had actually implemented. There was a significant discrepancy between the intention and the actual implementation. For example, 80.3% of respondents had planned to reduce the room temperature overnight, but 42.0% of those who had planned to do so said they had not implemented this measure. Another focus was on opinions on the Building Energy Act, which was hotly debated during the survey. Among other things, participants were asked about their acceptance of a ban on the installation of new gas and oil heating systems from 2024 onwards. The overwhelming majority of participants rejected such an installation ban. Since heat pumps are considered the heating technology of the future, heat pump owners were asked about their satisfaction with this heating technology. It was found that around 20% of the more than 1,000 households heating with heat pumps are somewhat or very dissatisfied with them. The most common reason given for this is a sharp increase in electricity consumption as a result of using the heat pump.
Frondel, M., A. Gerster, P. Hiemann, K. Kaestner, M. Pahle, P. Singhal and A. Schwarz (2025), Das Wärme- und Wohnen-Panel zur Analyse des Wärmesektors: Ergebnisse der 3. Erhebung aus dem Jahr 2023. Zeitschrift für Energiewirtschaft, 49, 3, 30-48