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Publikationer (6 of 6) Visa alla publikationer
von Platten, J., Holmberg, C., Mangold, M., Johansson, T. & Mjörnell, K. (2019). The renewing of Energy Performance Certificates—Reaching comparability between decade-apart energy records. Applied Energy, 255, Article ID 113902.
Öppna denna publikation i ny flik eller fönster >>The renewing of Energy Performance Certificates—Reaching comparability between decade-apart energy records
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2019 (Engelska)Ingår i: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 255, artikel-id 113902Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Energy Performance Certificates are currently one of the most extensive data sources about the energy performance of the EUs building stock and consequently provide support for researchers and policy makers in energy regulation. As Energy Performance Certificates are being renewed, there are new possibilities to study energy performance development over time and to evaluate the building-specific effect of energy policies and measures. This paper aims to explore this possibility. In Sweden, owners of multifamily buildings had to obtain their first Energy Performance Certificate no later than the end of 2008, and with a period of validity of 10 years many owners have now obtained a second Energy Performance Certificate for their building(s). This enables unprecedented quantitative, building-specific evaluations of the change in energy performance over time. However, comparability between old and new Energy Performance Certificates must be assured. This study develops a novel three-step method to attain comparability between old and renewed Energy Performance Certificates. Results show that while many pairs of Energy Performance Certificates were considered comparable, procedural changes in methods for determining heated floor area in Swedish Energy Performance Certificates caused an overestimation of energy performance improvement of approximately 7 kWh/m2 per building which had to be corrected for. The results of this paper indicate that old and renewed Energy Performance Certificates can be utilised to successfully map development of energy performance and enable evaluation of the impact on energy performance from policies and measures that have been carried out between the two points of audit. © 2019 The Authors

Ort, förlag, år, upplaga, sidor
Elsevier Ltd, 2019
Nyckelord
Building stock, Energy efficiency, Energy Performance Certificate, Evidence-based policy, Long-Term Renovation Strategy, Renovation, Buildings, Energy policy, Building stocks, Energy performance, Evidence-based
Nationell ämneskategori
Naturvetenskap Naturvetenskap
Identifikatorer
urn:nbn:se:ri:diva-39972 (URN)10.1016/j.apenergy.2019.113902 (DOI)
Anmärkning

Funding details: Svenska Forskningsrådet Formas, 2017-01449; Funding text 1: The authors would like to thank the Swedish authorities Boverket and Energimyndigheten for their collaborative approach to providing data and utilising the works of this paper in the update of the Swedish Long-Term Renovation Strategy. This work was supported by The Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (Formas) [grant number 2017-01449 ] within the project National Building-Specific Information (NBI). The authors have no conflicts of interest to declare. Appendix A . Tables A.1–A.4 Energy performance Energy performance is the yearly, temperature corrected, and area-normalised energy used for heating, domestic hot water, and building electricity for lighting and ventilation. Domestic electricity use is not included.

Tillgänglig från: 2019-10-09 Skapad: 2019-10-09 Senast uppdaterad: 2019-10-09Bibliografiskt granskad
Mangold, M., Österbring, M., Overland, C., Johansson, T. & Wallbaum, H. (2018). Building Ownership, Renovation Investments, and Energy Performance - A Study of Multi-Family Dwellings in Gothenburg. Sustainability, 10(5), Article ID 1684.
Öppna denna publikation i ny flik eller fönster >>Building Ownership, Renovation Investments, and Energy Performance - A Study of Multi-Family Dwellings in Gothenburg
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2018 (Engelska)Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 5, artikel-id 1684Artikel i tidskrift (Refereegranskat) Published
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.

Ort, förlag, år, upplaga, sidor
MDPI, 2018
Nyckelord
renovation extent, energy retrofitting, rent affordability, tenure, energy performance certificate, decision support
Nationell ämneskategori
Husbyggnad Miljöanalys och bygginformationsteknik
Identifikatorer
urn:nbn:se:ri:diva-36082 (URN)10.3390/su10051684 (DOI)2-s2.0-85047252884 (Scopus ID)
Forskningsfinansiär
Forskningsrådet Formas
Tillgänglig från: 2018-11-09 Skapad: 2018-11-09 Senast uppdaterad: 2019-07-10Bibliografiskt granskad
Brunklaus, B., Molnar, S., Sandin, G., Torén, J. & Mangold, M. (2018). Choice of social indicators within technology development – the case of mobile biorefineries in Europe. In: Social LCA: People and Places for Partnership. Paper presented at 6th Social Life Cycle Assessment Conference (pp. 162-166).
Öppna denna publikation i ny flik eller fönster >>Choice of social indicators within technology development – the case of mobile biorefineries in Europe
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2018 (Engelska)Ingår i: Social LCA: People and Places for Partnership, 2018, s. 162-166Konferensbidrag, Muntlig presentation med publicerat abstract (Övrigt vetenskapligt)
Nyckelord
Life cycle assessment, LCA, Social life cycle assessment, Social LCA, SLCA, S-LCA, biorefinery, mobile biorefinery, biomass, forest resource
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
urn:nbn:se:ri:diva-37591 (URN)
Konferens
6th Social Life Cycle Assessment Conference
Projekt
Mobile FLIP
Forskningsfinansiär
EU, Horisont 2020, 637020
Tillgänglig från: 2019-01-28 Skapad: 2019-01-28 Senast uppdaterad: 2019-06-27Bibliografiskt granskad
Mangold, M., Mjörnell, K., Durgun, Ö. & Johansson, T. (2018). Fastighetsägares förutsättningar för renovering av sina byggnadsbestånd från miljonprogramstiden. Bygg&Teknik, 2
Öppna denna publikation i ny flik eller fönster >>Fastighetsägares förutsättningar för renovering av sina byggnadsbestånd från miljonprogramstiden
2018 (Svenska)Ingår i: Bygg&Teknik, ISSN 0281-658X, Vol. 2Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm)) Published
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.

Nyckelord
Fastighetsägare, renovering, energianvändning, hyresökning, social hållbarhet
Nationell ämneskategori
Miljöanalys och bygginformationsteknik
Identifikatorer
urn:nbn:se:ri:diva-36095 (URN)
Projekt
Nationell Byggnadsspecifik Information
Forskningsfinansiär
Forskningsrådet Formas
Tillgänglig från: 2018-11-09 Skapad: 2018-11-09 Senast uppdaterad: 2019-06-27Bibliografiskt granskad
Johansson, T., Olofsson, T. & Mangold, M. (2017). Development of an energy atlas for renovation of the multifamily building stock in Sweden. Applied Energy, 203, 723-736
Öppna denna publikation i ny flik eller fönster >>Development of an energy atlas for renovation of the multifamily building stock in Sweden
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. © 2017

Ort, förlag, år, upplaga, sidor
Elsevier Ltd, 2017
Nyckelord
Energy atlas, Energy performance certificate, Extract transform and load, Multifamily buildings, Renovation, Buildings, Economics, Energy efficiency, Planning, Retrofitting, Aggregated datum, Cost of energies, Energy performance, Socio-economic consequences, Socio-economic status, Transform and loads, Historic preservation, building, energy conservation, energy use, performance assessment, three-dimensional modeling, two-dimensional modeling, Sweden
Nationell ämneskategori
Samhällsbyggnadsteknik
Identifikatorer
urn:nbn:se:ri:diva-38102 (URN)10.1016/j.apenergy.2017.06.027 (DOI)2-s2.0-85021637302 (Scopus ID)
Tillgänglig från: 2019-03-08 Skapad: 2019-03-08 Senast uppdaterad: 2019-06-27Bibliografiskt granskad
Mangold, M., Mjörnell, K. & Johansson, T. (2017). Nya digitala verktyg ger bättre bild av renoveringsbehovet. Bygg & Teknik (5)
Öppna denna publikation i ny flik eller fönster >>Nya digitala verktyg ger bättre bild av renoveringsbehovet
2017 (Svenska)Ingår i: Bygg & Teknik, nr 5, s. 4Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm)) Published
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.

Ort, förlag, år, upplaga, sidor
Stockholm: Byggteknikförlaget, 2017. s. 4
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
urn:nbn:se:ri:diva-32882 (URN)
Tillgänglig från: 2017-12-19 Skapad: 2017-12-19 Senast uppdaterad: 2019-06-27Bibliografiskt granskad
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0002-5044-6989

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