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Environmental Performance Measures to Assess Building Refurbishment from a Life Cycle Perspective
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (Energy Efficiency)ORCID iD: 0000-0002-0014-4261
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (Energy Efficiency)
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. Umeå University, Faculty of Science and Technology, Centre for Biomedical Engineering and Physics (CMTF). (Energy Efficiency)
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics. (Energy Efficiency)ORCID iD: 0000-0002-8704-8538
2019 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, no 2, article id 299Article in journal (Refereed) Published
Abstract [en]

Energy efficiency investments in existing buildings are an effective way of reducing the environmental impact of the building stock. Even though policies in the European Union and elsewhere promote a unilateral focus on operational energy reduction, scientific studies highlight the importance of applying a life cycle perspective to energy refurbishment. However, life cycle assessment is often perceived as being complicated and the results difficult to interpret by the construction sector. There is also a lack of guidelines regarding the sustainable ratio between the embodied and accumulated operational impact. The scope of this study is to introduce a life cycle assessment method for building refurbishment that utilizes familiar economic performance tools, namely return on investment and annual yield. The aim is to use the introduced method to analyze a case building with a sustainability profile. The building was refurbished in order to reduce its operational energy use. The introduced method is compatible with a theory of minimum sustainable environmental performance that may be developed through backcasting from defined energy and GHG emissions objectives. The proposed approach will hopefully allow development of sustainable refurbishment objectives that can support the choice of refurbishment investments.

Place, publisher, year, edition, pages
MDPI, 2019. Vol. 12, no 2, article id 299
Keywords [en]
building refurbishment; Life Cycle Assessment (LCA); Return on Investment (ROI); Annual Yield (AY); Environmental Performance Measure (EPM); Greenhouse Gas (GHG) reduction
National Category
Building Technologies
Research subject
sustainability
Identifiers
URN: urn:nbn:se:umu:diva-155666DOI: 10.3390/en12020299ISI: 000459743700100OAI: oai:DiVA.org:umu-155666DiVA, id: diva2:1282703
Available from: 2019-01-25 Created: 2019-01-25 Last updated: 2019-04-08Bibliographically approved

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Nydahl, HelenaAndersson, StaffanÅstrand, Anders P.Olofsson, Thomas

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