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Life cycle assessment of domestic hot water systems in Australia

Author

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  • Moore, A.D.
  • Urmee, T.
  • Bahri, P.A.
  • Rezvani, S.
  • Baverstock, G.F.

Abstract

Global warming potential (GWP) and primary energy demand (PED) were investigated for a range of domestic hot water systems in Australia, from cradle-to-grave, using streamlined life cycle assessment. The production of the hot water systems was modelled using inventory data calculated using specifications from a range of Australian manufacturers. The use stage of the life cycle was modelled assuming installation within Australian climate zone 3 according to the Australian and New Zealand water heater standard (AS/NZS 4234:2011). The electric storage hot water system had the highest GWP and PED, followed by solar electric, gas storage, gas instantaneous, and then solar gas instantaneous system. The solar hot water systems were shown to significantly reduce the GWP and PED compared to their non-solar counterparts, despite the additional impacts associated with production. The use stage accounted for 87%–99% of the GWP or PED of all systems. GWP and PED payback periods were less than 12 months for the solar hot water systems.

Suggested Citation

  • Moore, A.D. & Urmee, T. & Bahri, P.A. & Rezvani, S. & Baverstock, G.F., 2017. "Life cycle assessment of domestic hot water systems in Australia," Renewable Energy, Elsevier, vol. 103(C), pages 187-196.
    • Handle: RePEc:eee:renene:v:103:y:2017:i:c:p:187-196
    DOI: 10.1016/j.renene.2016.09.062
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    Cited by:

    1. Agnieszka Żelazna & Justyna Gołębiowska, 2020. "A PV-Powered TE Cooling System with Heat Recovery: Energy Balance and Environmental Impact Indicators," Energies, MDPI, vol. 13(7), pages 1-22, April.
    2. Bahlawan, Hilal & Morini, Mirko & Pinelli, Michele & Poganietz, Witold-Roger & Spina, Pier Ruggero & Venturini, Mauro, 2019. "Optimization of a hybrid energy plant by integrating the cumulative energy demand," Applied Energy, Elsevier, vol. 253(C), pages 1-1.
    3. Lechón, Yolanda & Lago, Carmen & Herrera, Israel & Gamarra, Ana Rosa & Pérula, Alberto, 2023. "Carbon benefits of different energy storage alternative end uses. Application to the Spanish case," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).
    4. Naspolini, Helena F. & Rüther, Ricardo, 2019. "Impacts of the active power demand measurement-time resolution on the financial attractiveness of domestic solar hot water systems," Renewable Energy, Elsevier, vol. 139(C), pages 336-345.
    5. Fuentes, E. & Arce, L. & Salom, J., 2018. "A review of domestic hot water consumption profiles for application in systems and buildings energy performance analysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 1530-1547.
    6. Gui, Xuechen & Gou, Zhonghua, 2022. "Household energy technologies in New South Wales, Australia: Regional differences and renewables adoption rates," Renewable and Sustainable Energy Reviews, Elsevier, vol. 160(C).

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