Mastropietro, Paolo Rodilla Rodríguez, Pablo 2025-07-10T14:24:13Z 2025-07-10T14:24:13Z 2025-03-04 0360-3199 https:doi.org10.1016j.ijhydene.2025.01.275 http://hdl.handle.net/11531/100577 Artículos en revistas Although the actual scope of the hydrogen sector is still uncertain, many support mechanisms for low-carbon hydrogen have been introduced at the global level in recent years, with billions of dollars of funding soon to be disbursed. This article presents a comprehensive taxonomy of these support schemes, based on a global review of international experience covering more than 20 jurisdictions in different regions of the world. The majority of hydrogen support mechanisms introduced so far target production, consumption and cross-chain projects (either through risk-hedging contracts or direct grants), while there is limited experience with support for hydrogen transport and storage. The article identifies the main design elements of hydrogen support mechanisms, a classification that can be used in future works to critically assess alternative designs. The article also presents some initial trends in international experience, shedding light on a topic that is dramatically underrepresented in the academic literature. en-GB Revista: International Journal of Hydrogen Energy, Periodo: 1, Volumen: online, Número: , Página inicial: 169, Página final: 178 Instituto de Investigación Tecnológica (IIT) A taxonomy of support mechanisms for the low-carbon hydrogen supply chain info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/openAccess Hydrogen economy; Hydrogen subsidies; Support mechanism; Risk-hedging; Direct grant; Fixed premium; Variable premium