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Green Hydrogen Characterisation Initiatives: Definitions, Standards, Guarantees Of Origin, And Challenges

Velazquez Abad, A; Dodds, PE; (2020) Green Hydrogen Characterisation Initiatives: Definitions, Standards, Guarantees Of Origin, And Challenges. Energy Policy , 138 , Article 111300. 10.1016/j.enpol.2020.111300.

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Velazquez Abad_GREEN HYDROGEN CHARACTERISATION INITIATIVES - DEFINITIONS, STANDARDS, GUARANTEES OF ORIGIN, AND CHALLENGES - Preprint.pdf - Accepted version
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Abstract

Hydrogen can be produced from many different renewable and non-renewable feedstocks and technological pathways, with widely varying greenhouse gas emissions. For hydrogen to have a role in future low-carbon energy systems, it is necessary to demonstrate that it has sufficiently low carbon emissions. This paper explores how green hydrogen has been defined, reviews nascent green hydrogen characterisation initiatives, and highlights the main challenges that standards and guarantee of origin schemes must overcome to develop a market for green hydrogen. Most existing green hydrogen initiatives are in Europe. In anticipation of a future market for green hydrogen, international standards are starting to be discussed by national and international standardisation organisations and policy makers. A range of approaches have been taken to defining green hydrogen and guarantees of origin. These vary on whether green hydrogen must be produced from renewable energy, on the boundaries of the carbon accounting system, the emission thresholds at which hydrogen is considered green, and on which feedstocks and production technologies are included in the scheme. Decisions on these factors are often influenced by other national and international standards, and the legal framework in which the green hydrogen supply chain operates.

Type: Article
Title: Green Hydrogen Characterisation Initiatives: Definitions, Standards, Guarantees Of Origin, And Challenges
DOI: 10.1016/j.enpol.2020.111300
Publisher version: https://doi.org/10.1016/j.enpol.2020.111300
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10090386
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