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Embodied energy in buildings : wood versus concrete - reply to Börjesson and Gustavsson

Lenzen, M. and Treloar, G. 2002, Embodied energy in buildings : wood versus concrete - reply to Börjesson and Gustavsson, Energy policy, vol. 30, no. 3, pp. 249-255, doi: 10.1016/S0301-4215(01)00142-2.

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Title Embodied energy in buildings : wood versus concrete - reply to Börjesson and Gustavsson
Author(s) Lenzen, M.
Treloar, G.
Journal name Energy policy
Volume number 30
Issue number 3
Start page 249
End page 255
Publisher Elsevier Science B.V.
Place of publication New York, N.Y.
Publication date 2002-02
ISSN 0301-4215
Keyword(s) embodied energy
life-cycle assessment
input–output analysis
Summary We analyse the wood and concrete designs of the Wälludden building described by Börjesson et al. (Energy Policy 28 (2000) 575) in terms of their embodied energy, employing an environmentally extended input–output framework in a tiered hybrid life-cycle assessment, and in a structural path analysis. We illustrate the complexity of the inter-industry supply chains underlying the upstream energy requirements for the building options, and demonstrate that higher-order inputs are difficult to capture in a conventional process analysis. Our calculations show that Börjesson and Gustavsson's estimates of energy requirements and greenhouse gas emissions are underestimated by a factor of about 2, and that corresponding greenhouse gas balances are positive at about 30 t C-eq. Nevertheless, Börjesson and Gustavsson's general result—the concrete-framed building causing higher emissions—still holds.
Language eng
DOI 10.1016/S0301-4215(01)00142-2
Field of Research 120202 Building Science and Techniques
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2002, Elsevier Science Ltd
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Document type: Journal Article
Collection: School of Architecture and Built Environment
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