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An approach towards sustainable renovation: a tool for decision support in early project stages
KTH Royal Institute of Technology, Stockholm, Sweden.
KTH Royal Institute of Technology, Stockholm, Sweden.
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
2016 (English)In: Building and Environment, ISSN 0360-1323, E-ISSN 1873-684X, Vol. 106, 20-32 p.Article in journal (Refereed) Published
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Abstract [en]

Reducing greenhouse gas (GHG) emissions through energy reduction in buildings is a high priority for policy-makers in the European Union and elsewhere. However, although long-term sustainability targets exist on the societal level, it is not obvious how these targets may trickle down to individual sectors and further down to specific organizations or buildings. The aim of this paper is to illustrate an approach for evaluating renovation measures in order to identify appropriate target levels in early project stages and what is needed to achieve a number of proposed sustainability targets. The evaluation approach is supported by a tool that can be seen as an aid to making rough estimations of the environmental impacts. Sustainability target levels in a Swedish context are presented for three issues: operational energy use, GHG emissions due to total energy use for building operation, and embodied GHG emissions due to production of materials. The approach to support well-grounded retrofit decisions is shown with a case study. The tool developed, in combination with a suggested step-by-step evaluation approach, provides an effective way to evaluate various potential improvements, and their consequences, in early project stages. However, other tools with similar functionality may be used. Results from the case illustration imply that it is possible to achieve the proposed sustainability targets for operational energy use by implementing nine measures. However, the targets for GHG emissions for operational energy use and embodied GHG emissions were not achieved because of an energy supply with too high a share of non-renewable fuels.

Place, publisher, year, edition, pages
2016. Vol. 106, 20-32 p.
Keyword [en]
Building renovation processes, Embodied emissions, Energy-efficiency, Evaluation procedure, Greenhouse gas emissions, Sustainability targets, Decision support systems, Energy efficiency, Environmental impact, Gas emissions, Sustainable development, Building operations, Building renovation, Evaluation approach, Long-term sustainability, Non-renewable fuels, Operational energy, Greenhouse gases
National Category
Environmental Analysis and Construction Information Technology
Identifiers
URN: urn:nbn:se:hig:diva-22111DOI: 10.1016/j.buildenv.2016.06.016ISI: 000382600100003Scopus ID: 2-s2.0-84975317341OAI: oai:DiVA.org:hig-22111DiVA: diva2:946944
Funder
Swedish Research Council Formas
Available from: 2016-07-06 Created: 2016-07-06 Last updated: 2016-11-11Bibliographically approved

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CiteExportLink to record
Permanent link

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