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Challenges of renovating the Gothenburg multi-family building stock - An analysis of comprehensive building-specific information, including energy performance, ownership and affordability
Chalmers University of Technology, Sweden.ORCID iD: 0000-0002-5044-6989
2016 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

In Sweden and many European countries, the building stock increased at a rapid pace during the period of 1950-1975. This aging building stock is in need of renovation which is a challenge and an opportunity in reaching the energy performance targets as well as decreasing societal inequities. The contribution of this thesis is to demonstrate how economic, social and resource usage challenges of renovating the building stock can be analyzed and described using comprehensive building-specific data. In this thesis, building ownership types, area socio-economic characteristics, building energy performance, and investments in renovation, are analyzed for the Gothenburg multi-family dwelling stock. Measured energy usage from the Swedish Energy Performance Certificate was used in the analysis. The data quality of the Energy Performance Certificate was assessed for the purpose of analyzing the building stock. The Energy Performance Certificates were matched with official building information from the Swedish Land Survey and area socio-economic information from Statistics Sweden. Using this dataset, rent increases due to renovations are estimated and compared. To broaden the analysis, a case study in a renovation project of multi-family dwellings in an economically disadvantaged area is also presented. In the case study renovation, the implemented energy usage reducing measure of volumetric billing of water was found to increase rents. The case study is used to exemplify how energy usage reducing renovation projects, with little consideration for social city development targets, can aggravate economic segregation. There is positive progress towards the 2020 targets of greenhouse gas emission reduction and improved energy efficiency in the Swedish housing sector; while there is little progress toward the Gothenburg city target to reduce segregation. The Swedish housing sector is rather part of the economic and geographic segregation process in Gothenburg. Renovation will be needed to reduce differences in living standards. The upcoming renovation need is a challenge, for mainly municipally owned companies, in reaching greenhouse gas and energy usage reduction without raising rent and increasing economic segregation.

Place, publisher, year, edition, pages
2016. , p. 54
Series
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie nr 4125, ISSN 0346‐718X
Keywords [en]
Aging building stock, Energy performance certificate, Energy retrofitting, Equity, GIS, Göteborg, Measured energy usage, Multi-family dwellings, Social sustainability, Tenure
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-60866ISBN: 9789175974446 (print)OAI: oai:DiVA.org:ri-60866DiVA, id: diva2:1704386
Public defence
2016-09-02, 12:00
Opponent
Note

Appended articles: I. Mangold M, Morrison G, Harder R, Hagbert P, and Rauch S. (2014) “TheTransformative Effect of the Introduction of Water Volumetric Billing in a DisadvantagedHousing Area in Sweden.” Water Policy 16 (5): 973-990. doi:10.2166/wp.2014.105.  II. Mangold M, Österbring M, and Wallbaum H. (2015) “Review of Swedish ResidentialBuilding Stock Research.” International Journal of Environmental Sustainability, 11 (2).ISSN: 23251077.  III. Mangold M, Österbring M, and Wallbaum H. (2015) “Handling Data UncertaintiesWhen Using Swedish Energy Performance Certificate Data to Describe Energy Usage inthe Building Stock.” Energy and Buildings 102: 328–36.  IV. Mangold M, Österbring M, Wallbaum H, Tuvander L, and Femenias P. (2016) “SocioEconomic Impact of Renovation and Energy Retrofitting of the Gothenburg BuildingStock.” Energy and Buildings. 123: 41-49 doi:10.1016/j.enbuild.2016.04.033   V. Mangold M, Österbring M, Wallbaum H, Overland C, and Johansson T. “Buildingownership, renovation investments and energy performance - A study of multi-familydwellings in Gothenburg.” Submitted to Energy and Buildings. 

This thesis has been financially supported by Chalmers Infrastructure Engineering, SIRen, E2B2,Chalmers Area of Advance Energy, and the Swedish Research Council for Environment,Agricultural Sciences and Spatial Planning – Formas, within the Homes for Tomorrow project. 

Available from: 2022-10-18 Created: 2022-10-18 Last updated: 2023-05-25Bibliographically approved

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