Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway

Building renovation is a key measure to reduce energy consumption and Greenhouse gas (GHG) emissions, and ease the transition to a fully renewable energy system. This paper applies the IEA EBC Annex 75 methodology for investigating the cost optimal and environmental trade-off between investment in e...

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Main Authors: Walnum Harald Taxt, Bagle Marius, Sørensen Åse Lekang, Fufa Selamawit Mamo
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_05005.pdf
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author Walnum Harald Taxt
Bagle Marius
Sørensen Åse Lekang
Fufa Selamawit Mamo
author_facet Walnum Harald Taxt
Bagle Marius
Sørensen Åse Lekang
Fufa Selamawit Mamo
author_sort Walnum Harald Taxt
collection DOAJ
description Building renovation is a key measure to reduce energy consumption and Greenhouse gas (GHG) emissions, and ease the transition to a fully renewable energy system. This paper applies the IEA EBC Annex 75 methodology for investigating the cost optimal and environmental trade-off between investment in energy efficiency measures on the building envelope and energy supply, on a residential neighbourhood in Norway. Combination of different energy efficiency measures and energy supply systems are investigated with an optimal investment model. The cost and environmental impact of the combinations are evaluated. An important outcome is that within the evaluated combinations, the choice of energy supply system has little impact on the cost effectiveness of the energy efficiency measures. However, it has a significant impact on the GHG emissions. The results also highlight the importance of performing energy efficiency measures in coordination with other renovating measures, both regarding cost effectiveness and environmental impact. The results will not give a finite answer to what is the best solution but serves at a useful set of inputs for overall evaluations.
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spelling doaj.art-9c104697600f4b758773efa74f141b872022-12-21T22:35:29ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012460500510.1051/e3sconf/202124605005e3sconf_hvac2021_05005Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in NorwayWalnum Harald Taxt0Bagle Marius1Sørensen Åse Lekang2Fufa Selamawit Mamo3SINTEF Community, Architectural EngineeringSINTEF Community, Architectural EngineeringSINTEF Community, Architectural EngineeringSINTEF Community, Architectural EngineeringBuilding renovation is a key measure to reduce energy consumption and Greenhouse gas (GHG) emissions, and ease the transition to a fully renewable energy system. This paper applies the IEA EBC Annex 75 methodology for investigating the cost optimal and environmental trade-off between investment in energy efficiency measures on the building envelope and energy supply, on a residential neighbourhood in Norway. Combination of different energy efficiency measures and energy supply systems are investigated with an optimal investment model. The cost and environmental impact of the combinations are evaluated. An important outcome is that within the evaluated combinations, the choice of energy supply system has little impact on the cost effectiveness of the energy efficiency measures. However, it has a significant impact on the GHG emissions. The results also highlight the importance of performing energy efficiency measures in coordination with other renovating measures, both regarding cost effectiveness and environmental impact. The results will not give a finite answer to what is the best solution but serves at a useful set of inputs for overall evaluations.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_05005.pdf
spellingShingle Walnum Harald Taxt
Bagle Marius
Sørensen Åse Lekang
Fufa Selamawit Mamo
Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway
E3S Web of Conferences
title Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway
title_full Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway
title_fullStr Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway
title_full_unstemmed Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway
title_short Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway
title_sort cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in norway
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_05005.pdf
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