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Analysis of Carbon Emissions and Carbon Reduction Benefits of Green Hydrogen and Its Derivatives Based on the Full Life Cycle

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  • Lili Ma

    (CGN Wind Power Company Limited, Beijing 100071, China)

  • Wenwen Qin

    (CGN Wind Power Company Limited, Beijing 100071, China)

  • Mingyue Hu

    (School of Economics and Management, China University of Geosciences Beijing, Beijing 100083, China)

  • Daoshun Zha

    (School of Economics and Management, China University of Geosciences Beijing, Beijing 100083, China)

  • Jiadong Xuan

    (School of Economics and Management, China University of Geosciences Beijing, Beijing 100083, China)

  • Kaixuan Hou

    (School of Economics and Management, China University of Geosciences Beijing, Beijing 100083, China)

  • Tiantian Feng

    (School of Economics and Management, China University of Geosciences Beijing, Beijing 100083, China
    Key Laboratory of Carrying Capacity Assessment for Resource and Environment, Ministry of Natural Resoures, Beijing 100083, China)

Abstract

Under the constraints of the “dual carbon” goals, accurately depicting the full life cycle carbon footprint of green hydrogen and its derivatives and quantifying the potential for emission reduction is a prerequisite for hydrogen energy policy and investment decisions. This paper constructs a unified life cycle model, covering the entire process from “wind and solar power generation–electrolysis of water to producing hydrogen-synthesis of methanol/ammonia-terminal transportation”, and includes the manufacturing stage of key front-end equipment and the negative carbon effect of CO 2 capture within a single system boundary, and also presents an empirical analysis. The results show that the full life cycle carbon emissions of wind power hydrogen production and photovoltaic hydrogen production are 1.43 kgCO 2 /kgH 2 and 3.17 kgCO 2 /kgH 2 , respectively, both lower than the 4.9 kg threshold for renewable hydrogen in China. Green hydrogen synthesis of methanol achieves a net negative emission of −0.83 kgCO 2 /kgCH 3 OH, and the emission of green hydrogen synthesis of ammonia is 0.57 kgCO 2 /kgNH 3 . At the same time, it is predicted that green hydrogen, green ammonia, and green methanol can contribute approximately 1766, 66.62, and 30 million tons of CO 2 emission reduction, respectively, by 2060, providing a quantitative basis for the large-scale layout and policy formulation of the hydrogen energy industry.

Suggested Citation

  • Lili Ma & Wenwen Qin & Mingyue Hu & Daoshun Zha & Jiadong Xuan & Kaixuan Hou & Tiantian Feng, 2025. "Analysis of Carbon Emissions and Carbon Reduction Benefits of Green Hydrogen and Its Derivatives Based on the Full Life Cycle," Sustainability, MDPI, vol. 17(20), pages 1-25, October.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:20:p:9077-:d:1770420
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    References listed on IDEAS

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