Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden

Abstract The aim of this study is to assess the impact of the uncertainties of life cycle inventory (LCI) data for energy use and materials in life cycle assessments of standard energy renovation measures carried out in multi-family buildings in Sweden. Five energy renovation measures were assessed...

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Autores principales:	Karin Farsäter, Åsa Wahlström, Dennis Johansson
Formato:	article
Lenguaje:	EN
Publicado:	Springer 2021
Materias:	Monte Carlo LCA Greenhouse gas emissions Refurbishment Energy efficiency LCI input data Science Q Technology T
Acceso en línea:	https://doaj.org/article/57626b59dfa24b71b7898c2e000a7b52
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spelling	oai:doaj.org-article:57626b59dfa24b71b7898c2e000a7b522021-11-14T12:15:10ZUncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden10.1007/s42452-021-04838-42523-39632523-3971https://doaj.org/article/57626b59dfa24b71b7898c2e000a7b522021-11-01T00:00:00Zhttps://doi.org/10.1007/s42452-021-04838-4https://doaj.org/toc/2523-3963https://doaj.org/toc/2523-3971Abstract The aim of this study is to assess the impact of the uncertainties of life cycle inventory (LCI) data for energy use and materials in life cycle assessments of standard energy renovation measures carried out in multi-family buildings in Sweden. Five energy renovation measures were assessed with regard to their climate change potential. Modules A1–A3 and module B6 were included in the assessment and the functional unit, 1 m2 heated floor area of a renovated building fulfilling the Swedish building regulations and with a calculation period of 20 years, was used. The uncertainty of LCI data for materials and energy were assessed using the Ecoinvent data quality system. This study shows that with two different energy mixes, all renovation measures result in a decrease in the climate change potential. The five renovation measures used in the simulations, with and without consideration to uncertainties, show a lower climate change potential when carried out than when not carried out. It is also shown in this study that the inclusion of the uncertainties of the input data did not have any impact on the overall decisions to renovate or not to renovate. However, this should not be regarded as a general conclusion. If a renovation measure were to have a higher level of material use, or if the “Future energy mix” were to be improved, uncertainty considerations could become much more important from a climate change perspective. Article Highlights All assessed energy renovation measures show a decrease in their climate change potential when carried out. The energy renovation measures with the largest decreases of climate change potential are also the measures with largest energy saving potential. When uncertainties are considered, there are no overlaps in the results when carrying out or not carrying out a renovation measure.Karin FarsäterÅsa WahlströmDennis JohanssonSpringerarticleMonte CarloLCAGreenhouse gas emissionsRefurbishmentEnergy efficiencyLCI input dataScienceQTechnologyTENSN Applied Sciences, Vol 3, Iss 12, Pp 1-19 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Monte Carlo LCA Greenhouse gas emissions Refurbishment Energy efficiency LCI input data Science Q Technology T
spellingShingle	Monte Carlo LCA Greenhouse gas emissions Refurbishment Energy efficiency LCI input data Science Q Technology T Karin Farsäter Åsa Wahlström Dennis Johansson Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden
description	Abstract The aim of this study is to assess the impact of the uncertainties of life cycle inventory (LCI) data for energy use and materials in life cycle assessments of standard energy renovation measures carried out in multi-family buildings in Sweden. Five energy renovation measures were assessed with regard to their climate change potential. Modules A1–A3 and module B6 were included in the assessment and the functional unit, 1 m2 heated floor area of a renovated building fulfilling the Swedish building regulations and with a calculation period of 20 years, was used. The uncertainty of LCI data for materials and energy were assessed using the Ecoinvent data quality system. This study shows that with two different energy mixes, all renovation measures result in a decrease in the climate change potential. The five renovation measures used in the simulations, with and without consideration to uncertainties, show a lower climate change potential when carried out than when not carried out. It is also shown in this study that the inclusion of the uncertainties of the input data did not have any impact on the overall decisions to renovate or not to renovate. However, this should not be regarded as a general conclusion. If a renovation measure were to have a higher level of material use, or if the “Future energy mix” were to be improved, uncertainty considerations could become much more important from a climate change perspective. Article Highlights All assessed energy renovation measures show a decrease in their climate change potential when carried out. The energy renovation measures with the largest decreases of climate change potential are also the measures with largest energy saving potential. When uncertainties are considered, there are no overlaps in the results when carrying out or not carrying out a renovation measure.
format	article
author	Karin Farsäter Åsa Wahlström Dennis Johansson
author_facet	Karin Farsäter Åsa Wahlström Dennis Johansson
author_sort	Karin Farsäter
title	Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden
title_short	Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden
title_full	Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden
title_fullStr	Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden
title_full_unstemmed	Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden
title_sort	uncertainty analysis of climate change potential assessments of five building energy renovation measures in sweden
publisher	Springer
publishDate	2021
url	https://doaj.org/article/57626b59dfa24b71b7898c2e000a7b52
work_keys_str_mv	AT karinfarsater uncertaintyanalysisofclimatechangepotentialassessmentsoffivebuildingenergyrenovationmeasuresinsweden AT asawahlstrom uncertaintyanalysisofclimatechangepotentialassessmentsoffivebuildingenergyrenovationmeasuresinsweden AT dennisjohansson uncertaintyanalysisofclimatechangepotentialassessmentsoffivebuildingenergyrenovationmeasuresinsweden
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Uncertainty analysis of climate change potential assessments of five building energy renovation measures in Sweden

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