Towards the EU emissions targets of 2050: optimal energy renovation measures of Finnish apartment buildings

Janne Hirvonen, Juha Jokisalo, Juhani Heljo, Risto Kosonen

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    50 Sitaatiot (Scopus)

    Abstrakti

    Member countries of the European Union have released targets to reduce carbon dioxide emissions by 80% by the year 2050. Energy use in buildings is a major source of these emissions, which is why this study focused on the cost-optimal renovation of Finnish apartment buildings. Apartment buildings from four different construction years (pre-1976, 1976–2002, 2003–2009 and post-2010) were modelled, using three different heating systems: district heating, ground-source heat pump and exhaust air heat pump. Multi-objective optimisation was utilised to find the most cost-effective energy renovation measures. Most cost-effective renovation measures were ground-source heat pumps, demand-based ventilation and solar electricity. Additional thermal insulation of walls was usually too expensive. By performing only the cost-effective renovations, the emissions could be reduced by 80%, 82%, 69% and 68%, from the oldest to the newest buildings, respectively. This could be done with the initial investment cost of 296, 235, 115 and 104 €/m2, respectively.

    AlkuperäiskieliEnglanti
    JulkaisuInternational Journal of Sustainable Energy
    Vuosikerta38
    Numero7
    Varhainen verkossa julkaisun päivämäärä2018
    DOI - pysyväislinkit
    TilaJulkaistu - 2019
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 1

    !!ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Fuel Technology
    • Yleinen energiatiede
    • Process Chemistry and Technology
    • Fluid Flow and Transfer Processes

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