Cost-effectiveness of energy efficiency improvements for a residential building stock in a Danish district heating area

Mattia Baldini*, Morten Brøgger, Henrik K. Jacobsen, Kim B. Wittchen

*Kontaktforfatter

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

The residential building stock holds a large energy efficiency improvement potential related to energy upgrading of the building envelope. Details about the heterogeneity of the building stock are paramount to perform a proper assessment of attractive energy efficiency improvements for end-users.
Based on a sample of buildings, the study develops methods to identify potentials for heterogeneous building-tailored energy efficiency improvements, to reduce heat consumption, and evaluates their costeffectiveness in the framework of a district heating area in Denmark. The study accounts for rebound effects and develops both technical (gross) and more realistic (net) potentials, allowing a more accurate analysis of attractive energy efficiency improvements.
The analysis is novel as the underlying model relies on building characteristics rather than synthetic archetypes, which can lead to loss of diversity (e.g. in variation of costs and potentials) and thereby discarding cost-effective potentials. The analysis also investigates the sensitivity of the results to assumptions about the discount rate and focuses on the effect of exposing the end-user to different district heating tariffs and the consequent total
cost-effective investments. The outcomes show that costeffective energy efficiency improvements vary considerably, in size and type, among the heterogeneous building stock considered. In regard to district heating
tariffs, when all the cost components are variable, the total cost-effective potential increases considerably, with specific energy efficiency improvements
distributed differently among building categories, and with the cost components providing different incentives to invest. Heterogeneity, and different tariff policies, thus does matter, when evaluating economically attractive investments in energy efficiency improvements for buildings.
OriginalsprogEngelsk
TidsskriftEnergy Efficiency
Vol/bind13
Udgave nummer8
Sider (fra-til)1737-1761
Antal sider25
ISSN1570-646X
DOI
StatusAccepteret/In press - 29 jul. 2020

Bibliografisk note

Funding Information:
The research has been financed by Innovation Fund Denmark under the research project SAVE-E, grant no. 4106-00009B. Acknowledgements

Publisher Copyright:
© 2020, Springer Nature B.V.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Emneord

  • Cost-effective energy efficiency improvements
  • Heterogeneous building characteristics
  • District heating tariffs
  • Energy performance certificates
  • Rebound effects

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