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Effects of different techno-economic regimes on viability of deep energy renovation of an existing Swedish multi-family building
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. (SBER)ORCID iD: Ecotechnology
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. (SBER)
2017 (English)In: ECEEE 2017 Summer Study: Consumption, Efficiency & Limits, European Council for an Energy Efficient Economy (ECEEE), 2017, 1064-1073 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents and demonstrates a method for analysis of cost-effectiveness of energy efficiency measures for buildings. Based on the method, cost-optimal energy efficiency measures are calculated considering total and marginal investment costs as well as net present value of energy savings for the measures under different technical and economic scenario. The method is applied to a 1970s Swedish multi-family building to explore the profitability of different energy renovation measures when implemented individually or in packages. The measures analysed include improved thermal insulation for exterior and basement walls as well as attic floor, improved new windows, efficient electrical appliances, efficient water taps, and exhaust air ventilation heat recovery systems. Our results show that the economic viability of the retrofit measures is sensitive to the techno-economic parameters used including, real discount rates, energy price increases and technical lifetime of retrofit measures. Still, about 34–51 % reduction of final heat demands is economically viable for the analysed building. Resource-efficient taps is the most cost-effective measure while improved thermal envelope insulation for exterior walls is the least cost-effective among the measures analysed for the studied building. This study shows the significance of different technical and economic parameters in achieving deep-energy savings from renovation of a building in a cold climate. 

Place, publisher, year, edition, pages
European Council for an Energy Efficient Economy (ECEEE), 2017. 1064-1073 p.
Keyword [en]
deep renovations, energy savings, refurbishment, deep renovations, energy efficiency measures, existing buildings, cost effectiveness
National Category
Building Technologies
Research subject
Natural Science, Environmental Science; Technology (byts ev till Engineering), Civil engineering
Identifiers
URN: urn:nbn:se:lnu:diva-65679OAI: oai:DiVA.org:lnu-65679DiVA: diva2:1112896
Conference
ECEEE 2017 Summer Study of energy efficiency. 29 May – 3 June 2017. Hyères,
 France.
Available from: 2017-06-20 Created: 2017-06-20 Last updated: 2017-11-10Bibliographically approved

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Gustavsson, LeifDodoo, Ambrose

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf