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Low-energy buildings heat supply–Modelling of energy systems and carbon emissions impacts

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  • Sandvall, Akram Fakhri
  • Ahlgren, Erik O.
  • Ekvall, Tomas

Abstract

Construction of new low-energy buildings (LEB) areas is attracting attention as a climate mitigation measure. Heat can be supplied to buildings in these areas through individual solutions, through a small, on-site heat network, or through a heat connection to a close-by district-heating (DH) system. The choice between these options affects the energy supply systems and their carbon emissions far beyond the LEB area. We compare the long-term systems impacts of the three heat-supply options through dynamic modelling of the energy systems. The study draws on data collected from a real LEB area in Sweden and addresses scale-dependent impacts on district heating systems. The results show that, generally, the individual and on-site options increase biomass and electricity use, respectively. This, in turn, increases carbon emissions in a broader systems perspective. The systems impacts of the large heat network option depend on the scale and supply-technologies of the DH system close to the LEB area.

Suggested Citation

  • Sandvall, Akram Fakhri & Ahlgren, Erik O. & Ekvall, Tomas, 2017. "Low-energy buildings heat supply–Modelling of energy systems and carbon emissions impacts," Energy Policy, Elsevier, vol. 111(C), pages 371-382.
    • Handle: RePEc:eee:enepol:v:111:y:2017:i:c:p:371-382
    DOI: 10.1016/j.enpol.2017.09.007
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    References listed on IDEAS

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    1. Li, Hongwei & Svendsen, Svend, 2012. "Energy and exergy analysis of low temperature district heating network," Energy, Elsevier, vol. 45(1), pages 237-246.
    2. Dalla Rosa, A. & Christensen, J.E., 2011. "Low-energy district heating in energy-efficient building areas," Energy, Elsevier, vol. 36(12), pages 6890-6899.
    3. Sandvall, Akram Fakhri & Börjesson, Martin & Ekvall, Tomas & Ahlgren, Erik O., 2015. "Modelling environmental and energy system impacts of large-scale excess heat utilisation – A regional case study," Energy, Elsevier, vol. 79(C), pages 68-79.
    4. Mahapatra, K., 2015. "Energy use and CO2 emission of new residential buildings built under specific requirements – The case of Växjö municipality, Sweden," Applied Energy, Elsevier, vol. 152(C), pages 31-38.
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    Cited by:

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    2. Delmastro, Chiara & Gargiulo, Maurizio, 2020. "Capturing the long-term interdependencies between building thermal energy supply and demand in urban planning strategies," Applied Energy, Elsevier, vol. 268(C).
    3. Singh Gaur, Ankita & Fitiwi, Desta & Curtis, John, 2019. "Heat pumps and their role in decarbonising heating Sector: a comprehensive review," Papers WP627, Economic and Social Research Institute (ESRI).
    4. Vilén, Karl & Ahlgren, Erik O., 2023. "Linear or mixed integer programming in long-term energy systems modeling – A comparative analysis for a local expanding heating system," Energy, Elsevier, vol. 283(C).
    5. Oleksandr DIACHUK & Andrii SEMENIUK, 2021. "Methods And Models Of Estimating Energy Transition On The Example Of Zhytomyr United Territorial Community," Economy and Forecasting, Valeriy Heyets, issue 4, pages 74-101.
    6. Sandvall, Akram & Karlsson, Kenneth B., 2023. "Energy system and cost impacts of heat supply to low-energy buildings in Sweden," Energy, Elsevier, vol. 268(C).

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