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    Cost optimal building renovation with a net zero energy target for the Portuguese single-family building stock built before 1960

    ProjectAnnex 56 Cost
    TitleCost optimal building renovation with a net zero energy target for the Portuguese single-family building stock built before 1960
    Publication TypeCommunications in International Conferences
    Year of Publication2013
    AuthorsAlmeida, Manuela G., Ferreira M., and Pereira M.
    Abstract

    Cost Optimality and nearly Zero Energy Buildings (nZEB) are two fundamental concepts within the current European Union policy related to the energy performance of buildings and consequently related to climate change mitigation and non-renewable resources con-sumption. While Cost Optimality is mainly focused on costs, nZEB are focused on low energy consumption levels and on site renewables harvesting. If the differences between Cost Optimality and nZEB approaches result in major differences in the selection of the best package of renovation measures, the transition from the Cost Optimal concept to nZEB might result incompatible. In this context, using a virtual building representing the Portuguese residential building stock from the 20th century prior to 1960, this study investigates the most cost-effective packages of renovation measures to achieve a zero energy balance building and compares these packages with those resulting from the calculation of cost-optimal levels. Investigating the trade-offs between a renovation towards zero energy balance and a cost optimal renovation without the use of renewables is relevant to achieve a smooth transition from Cost Optimal levels to nearly Zero Energy Buildings.

    Conference NameSB13 Portugal – International Conference on Sustainable Building contribution to achieve the EU 20-20-20 targets
    EditionPrinted by Multicomp
    Pagination3-10
    Date Published2013-10-30
    Conference LocationGuimarães, Portugal, 30 October-1November 2013
    URLhttp://hdl.handle.net/1822/29065
    KeywordsBuildings renovation, Cost-optimal, Nearly zero energy buildings, renovation measures
    RightsopenAccess
    Peer reviewedyes
    Statuspublished
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    About CTAC

    The Centre for Territory, Environment and Construction (CTAC) is a research unit of the School of Engineering of University of Minho (UMinho), recognised by the “FCT – Fundação para a Ciência e Tecnologia” (Foundation for Science and Technology), associated to the Department of Civil Engineering (DEC), with whom it shares resources and namely human resources.

    Currently CTAC aggregates 25 researchers holding a PhD of which 20 are faculty professors of the Civil Engineering Department. Read more


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    Centro de Território, Ambiente e Construção
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    Campus de Azurém
    4800-058 Guimarães, Portugal

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