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Development of an energy atlas for renovation of the multifamily building stock in Sweden
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.ORCID-id: 0000-0002-5661-5237
Research Institutes of Sweden, City Development.
2017 (Engelska)Ingår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 203, s. 723-736Artikel i tidskrift (Refereegranskat) Published
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.

Ort, förlag, år, upplaga, sidor
Elsevier, 2017. Vol. 203, s. 723-736
Nationell ämneskategori
Byggproduktion
Forskningsämne
Byggproduktion
Identifikatorer
URN: urn:nbn:se:ltu:diva-64769DOI: 10.1016/j.apenergy.2017.06.027ISI: 000412379300054Scopus ID: 2-s2.0-85021637302OAI: oai:DiVA.org:ltu-64769DiVA, id: diva2:1119471
Anmärkning

Validerad;2017;Nivå 2;2017-07-04 (andbra)

Tillgänglig från: 2017-07-04 Skapad: 2017-07-04 Senast uppdaterad: 2017-11-24Bibliografiskt granskad

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Johansson, TimOlofsson, Thomas

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