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  • 1.
    Brunklaus, Birgit
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Molnar, Stefan
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Sandin, Gustav
    RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.
    Torén, Johan
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Mangold, Mikael
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Choice of social indicators within technology development – the case of mobile biorefineries in Europe2018In: Social LCA: People and Places for Partnership, 2018, p. 162-166Conference paper (Other academic)
  • 2.
    Johansson, Tim
    et al.
    Luleå University of Technology, Sweden.
    Olofsson, Thomas
    Luleå University of Technology, Sweden.
    Mangold, Mikael
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Development of an energy atlas for renovation of the multifamily building stock in Sweden2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 203, p. 723-736Article in journal (Refereed)
    Abstract [en]

    Many studies have highlighted the importance of retrofitting to mitigate the energy use of building stocks. An important step in the development of renovation strategy and energy conservation advising is to gather information of the energy performance of the existing buildings. However, renovation strategies must also consider the socio-economic challenges associated with the cost of energy retrofitting. This paper describes the development of an energy atlas of the multifamily building stock in Sweden for visualizing and analyzing energy use and renovation needs. The atlas has been developed using Extract Transform and Load technology (ETL) to aggregate information on the energy performance, building ownership, renovation status, and socio-economic status of inhabitants from various data sources. The atlas can visualize the energy use and renovation status of multifamily buildings in 2D maps and 3D models, displaying data for either individual buildings or aggregated data on spatial scales ranging from 250 × 250 m squares through district and municipality to county areas. A demonstration of its use on national and city scales indicates that energy retrofits of multifamily buildings reaching a service life of 50 years can reduce the energy use of the existing building stock by up to 50% relative to 1990. However, costs associated with renovation and energy retrofits of multifamily buildings can be problematic, especially in economically weak suburbs. A good understanding of past and future renovation needs and socio-economic consequences is important in the development of a sustainable national renovation strategy. © 2017

  • 3.
    Mangold, Mikael
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Durgun, Özüm
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Johansson, Tim
    Luleå University of Technology, Sweden.
    Fastighetsägares förutsättningar för renovering av sina byggnadsbestånd från miljonprogramstiden2018In: Bygg&Teknik, ISSN 0281-658X, Vol. 2Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Byggsektorn står inför ett stort renoveringsbehov. Byggnader från miljonprogramstiden har nått en ålder då många olika byggnadsdelar når sin förväntade livslängd. Detta renoveringsbehov är inte jämnt fördelat bland Sveriges fastighetsägare. Det stora flertalet av de ännu ej renoverade byggnaderna från miljonprogramstiden ägs av fastighetsbolag knutna till SABO, men det finns även många privata fastighetsägare och bostadsrättsföreningar som har ett eftersläpande renoveringsbehov eller som har renoverat men fortfarande har en hög energianvändning och alltså troligtvis inte genomfört nödvändiga energieffektiviseringsåtgärder. Det finns också olika förutsättningar för att göra de investeringar som krävs, vilket beror på företagens soliditet, fastigheternas värde och möjligheten att få lån, utrymme för hyresökning etc. Detta gör att renoveringstakten inte kommer att täcka renoveringsbehovet och att vissa delar av fastighetsbeståndet kommer att vara mer eftersatt.

  • 4.
    Mangold, Mikael
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Mjörnell, Kristina
    RISE - Research Institutes of Sweden.
    Johansson, Tim
    Luleå University of Technology, Sweden.
    Nya digitala verktyg ger bättre bild av renoveringsbehovet2017In: Bygg & Teknik, no 5, p. 4Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Byggsektorn är inne i en period av mycket hög aktivitet. Över 700 000 nya bostäder efterfrågas, samtidigt som miljonprogrammets byggnader börjar nå sin förväntade livslängd. Detta är en enorm utmaning, men det är också en möjlighet, där vi kan nå energi- och klimatmål och skapagoda boendemiljöer till rimlig kostnad.

  • 5.
    Mangold, Mikael
    et al.
    RISE - Research Institutes of Sweden, Built Environment, Energy and Circular Economy.
    Österbring, Magnus
    Chalmers University of Technology, Sweden.
    Overland, Conny
    University of Gothenburg, Sweden.
    Johansson, Tim
    Luleå University of Technology, Sweden.
    Wallbaum, Holger
    Chalmers University of Technology, Sweden.
    Building Ownership, Renovation Investments, and Energy Performance - A Study of Multi-Family Dwellings in Gothenburg2018In: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, no 5, article id 1684Article in journal (Refereed)
    Abstract [en]

    The European building stock was renewed at a rapid pace during the period 1950–1975.In many European countries, the building stock from this time needs to be renovated, and thereare opportunities to introduce energy efficiency measures in the renovation process. Informationavailability and increasingly available analysis tools make it possible to assess the impact of policyand regulation. This article describes methods developed for analyzing investments in renovationand energy performance based on building ownership and inhabitant socio-economic informationdeveloped for Swedish authorities, to be used for the Swedish national renovations strategy in2019. This was done by analyzing measured energy usage and renovation investments made duringthe last 30 years, coupled with building specific official information of buildings and resident areacharacteristics, for multi-family dwellings in Gothenburg (N = 6319). The statistical analyses showthat more costly renovations lead to decreasing energy usage for heating, but buildings that havebeen renovated during the last decades have a higher energy usage when accounting for currentheating system, ownership, and resident socio-economic background. It is appropriate to includean affordability aspect in larger renovation projects since economically disadvantaged groups areover-represented in buildings with poorer energy performance.

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