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Assessing the influence of actual LNG emission factors within the EU emissions trading system

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Listed:
  • He, Yapeng
  • Yan, Xinping
  • Fan, Ailong
  • Yin, Xiaoqing
  • Meng, Qingjian
  • Zhang, Lu
  • Liu, Peijie

Abstract

The shipping sector has been incorporated into the European Union Emissions Trading System (EU-ETS). Undoubtedly, the carbon emission factor is a critical consideration when determining carbon allowances in the EU-ETS, known as EU Allowances (EUAs). In this study, an all-performance carbon emission test was conducted on a marine LNG engine to investigate the differences between the actual carbon emission factor and the reference value. It was observed that the actual carbon emission factor is smaller than the reference value. The test results indicate a discrepancy of approximately 3%, resulting in potential savings of 10,000 to 20,000 dollars in EUAs for a ship consuming 2000 tonnes of LNG fuel annually. Furthermore, variations in the carbon emission factor were observed under different engine operational conditions, fluctuating by around 2% at constant revolutions per minute (RPM). This suggests the need for more suitable emission testing methods to accurately reflect actual emissions and better achieve emission control goals.

Suggested Citation

  • He, Yapeng & Yan, Xinping & Fan, Ailong & Yin, Xiaoqing & Meng, Qingjian & Zhang, Lu & Liu, Peijie, 2024. "Assessing the influence of actual LNG emission factors within the EU emissions trading system," Transport Policy, Elsevier, vol. 159(C), pages 345-358.
    • Handle: RePEc:eee:trapol:v:159:y:2024:i:c:p:345-358
    DOI: 10.1016/j.tranpol.2024.10.030
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    References listed on IDEAS

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    1. Fan, Ailong & Wang, Junteng & He, Yapeng & Perčić, Maja & Vladimir, Nikola & Yang, Liu, 2021. "Decarbonising inland ship power system: Alternative solution and assessment method," Energy, Elsevier, vol. 226(C).
    2. Yan, Xinping & He, Yapeng & Fan, Ailong, 2023. "Carbon footprint prediction considering the evolution of alternative fuels and cargo: A case study of Yangtze river ships," Renewable and Sustainable Energy Reviews, Elsevier, vol. 173(C).
    3. Alice Bows-Larkin & Kevin Anderson & Sarah Mander & Michael Traut & Conor Walsh, 2015. "Shipping charts a high carbon course," Nature Climate Change, Nature, vol. 5(4), pages 293-295, April.
    4. Perčić, Maja & Ančić, Ivica & Vladimir, Nikola, 2020. "Life-cycle cost assessments of different power system configurations to reduce the carbon footprint in the Croatian short-sea shipping sector," Renewable and Sustainable Energy Reviews, Elsevier, vol. 131(C).
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    Cited by:

    1. Kotzampasakis, Manolis, 2025. "Maritime emissions trading in the EU: Systematic literature review and policy assessment," Transport Policy, Elsevier, vol. 165(C), pages 28-41.
    2. Xu, Lang & Wu, Jiyuan & Yan, Ran & Chen, Jihong, 2025. "Is international shipping in right direction towards carbon emissions control?," Transport Policy, Elsevier, vol. 166(C), pages 189-201.

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