Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/315021 
Erscheinungsjahr: 
2024
Schriftenreihe/Nr.: 
EWI Working Paper No. 04/24
Verlag: 
Institute of Energy Economics at the University of Cologne (EWI), Cologne
Zusammenfassung: 
To decrease emissions from residential buildings, Germany employs a number of policies like re- newable energy requirements, subsidies, and CO2 prices that incentivize heating decarbonization. This paper analyses policy-driven household decision-making with regard to decentralized heating technology investment and the resulting costs. We apply a building level mixed integer linear pro- gramming model that computes optimal energy investment and operation for decentralized building energy technologies in 770 archetype buildings that represent the German residential building stock. We find that under renewable energy requirements, subsidies, CO2 prices, high medium-term gas prices, and moderately increasing electricity prices, it is optimal for many buildings to replace their fossil systems prematurely by electric heat pumps, achieving quick and substantial decarboniza- tion. However, the costs for decentralized decarbonization differ greatly between buildings: Some buildings profit from the subsidies, while others face high burdens. Especially, single family homes with recently installed gas and oil systems and inhabitants of multifamily homes potentially face high expenditures for CO2 prices. Policymakers should consider these dynamics when prioritiz- ing buildings for district heating or hydrogen in the municipal heat planning processes and when designing CO2 price revenue recycling mechanisms.
Schlagwörter: 
emission reduction
building sector
building stock
household heating
CO2 pricing
building policy
MILP
archetype buildings
subsidies
decentralized technologies
JEL: 
C53
C54
D15
D30
H20
Q48
Dokumentart: 
Working Paper

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