Heat Trans­ition of the Urban Build­ing Stock by In­ter­act­ive De­cision Space Ana­lysis

In order to achieve the German climate targets for 2030 in the residential building sector, a significant increase in the share of renewable energies in heat supply must be achieved in addition to stronger incentives for energy-efficient refurbishment. Energy system analyses show that this can be achieved primarily by switching to heat pumps and by expanding thermal grids based on renewable energies. The transformation requires significant investments on the part of the owners in the building stock, which must be coordinated with the municipal energy systems.

Funding agency
Federal Ministry for Economic Affairs and Climate Action (BMWK)

Project duration
2022 - 2025

The overarching goal of the work package at CESR is to collect comprehensive data about the factors underlying individual homeowner’s decisions to adopt a new heating system, including the timing and depth of those decisions. E.g.: What knowledge and assumptions exist about the impact on the quality of life, ease of maintenance, noise, reliability, etc. of sustainable energy technologies? What role do financial budgets, professional consultations, conversations among family, neighbours, and friends, or the assumed practical effort play? How, by whom and at what point in time are decisions initiated (e.g. is the decision triggered by the need for repair or even replacement, or a similar system is installed among neighbours or friends)? What is the actual lead time to installation? For this purpose, the above-mentioned factors are surveyed among homeowners by means of interviews and online, telephone and tablet-based (CATI) survey methods.

Project partners


> Martin Löhr (Student Assistant)