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Energy efficiency improvements by renovation actions: in Lagersberg and Råbergstorp, Stoke on Trent and Allingsås
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0002-7233-6916
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0001-5277-4567
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0003-1001-2489
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0003-3530-0209
2016 (English)Report (Other academic)
Abstract [en]

This report covers evaluation of some renovation projects and compares energy saving effects versus renovation costs.

It can be seen that advanced renovation to passive house standard is significantly more expensive than “normal” renovation, but also gives significant improvement by a 62 % reduction of total energy and 85 % reduction in heat demand. The cost associated with the renovation is somewhere in the range of 130–570 €/m2, depending on how the total renovation costs are split between energy and other aspects. Probably somewhere in-between is most correct. This can be compared to mostly better heat control by measuring temperature in every third apartment and controlling heat supply to keep a constant temperature. This gives the possibility to have a significantly lower set point, 21 ºC instead of 24 ºC as earlier. Together with some other actions, 34 % energy savings were achieved at a cost of 28 €/m2. Also renovations with significantly more actions were evaluated, where the cost also is in-between.

From this we can conclude that with more advanced and costly renovations we can achieve very strong reductions, which may be feasible if the renovation demand is high anyhow, while cheap and low cost actions can be good enough for quite good buildings.

Also behavior with respect to energy use was evaluated. We here can see that the use is very different in different apartments depending on behavior. Energy information actions were giving positive effects on energy demand for the majority of investigated tenants, while approximately 25 % did not reduce or even increased their consumption.

Place, publisher, year, edition, pages
Västerås, 2016. , p. 39
Series
Studies in Sustainable Technology / Forskningsrapport ; 2016:1
Keywords [en]
Smart cities, energy efficient cities, renovation, buildings
National Category
Energy Engineering
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-29467ISBN: 978-91-7485-243-1 (print)OAI: oai:DiVA.org:mdh-29467DiVA, id: diva2:868967
Projects
The Social Contract (Samhällskontraktet): Sustainable Societal Development (Hållbar samhällsutveckling (HSU))Available from: 2015-11-12 Created: 2015-11-12 Last updated: 2016-04-15Bibliographically approved

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Authority records BETA

Dahlquist, ErikVassileva, IanaCampillo, JavierLundström, Lukas

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CiteExportLink to record
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