{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T17:47:17Z","timestamp":1774892837365,"version":"3.50.1"},"posted":{"date-parts":[[2026]]},"group-title":"SSRN","reference-count":68,"publisher":"Elsevier BV","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>Green hydrogen is expected to play an important role for decarbonizing hard-to-abate sectors but faces regulatory, economic, and operational barriers. In the EU, strict renewable energy usages requirements and temporal and geographical criteria constrain green hydrogen production and complicate integration with electricity markets. Support mechanisms (SMs), such as premiums and quotas, aim to boost hydrogen production, yet their impacts on coupled electricity-hydrogen systems remain underexplored. This paper extends a previous joint electricity-hydrogen Cournot equilibrium model to represent and analyze the impact of different green hydrogen production SMs. Different SMs lead to different equilibrium models that were solved using equivalent quadratic optimization problems and applied to real-size Iberian case studies. Results reveal how different SMs influence hydrogen and electricity prices, production and emissions, highlighting trade-offs among stakeholders. The findings provide guidance for designing balanced policies that stimulate green hydrogen while minimizing unintended consequences and offer flexible tools to assess regulatory and economic interactions in emerging hydrogen markets<\/jats:p>","DOI":"10.2139\/ssrn.6496465","type":"posted-content","created":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T16:50:08Z","timestamp":1774889408000},"source":"Crossref","is-referenced-by-count":0,"title":["Assessing Green Hydrogen Support Mechanisms in Coupled Electricity and Hydrogen Markets"],"prefix":"10.2139","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0341-7333","authenticated-orcid":true,"given":"Luis  Alberto","family":"Herrero Rozas","sequence":"first","affiliation":[]},{"given":"Fco.  Alberto","family":"Campos","sequence":"additional","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6954-9833","authenticated-orcid":true,"given":"Jos\u00e9","family":"Villar","sequence":"additional","affiliation":[]}],"member":"78","reference":[{"issue":"5","key":"ref1","doi-asserted-by":"crossref","DOI":"10.3390\/en15051759","article-title":"The Role of Electrification in the Decarbonization of the Energy Sector in Portugal","volume":"15","author":"F Martins","year":"2022","journal-title":"Energies"},{"issue":"1","key":"ref2","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1002\/wene.181","article-title":"Introducing carbon structural adjustment: energy productivity and decarbonization of the global economy","volume":"5","author":"K ' Charlie' Hargroves","year":"2016","journal-title":"WIREs Energy and Environment"},{"issue":"83","key":"ref3","doi-asserted-by":"crossref","first-page":"32191","DOI":"10.1016\/j.ijhydene.2023.04.264","article-title":"Comparative analysis of global trends in low carbon hydrogen production towards the decarbonization pathway","volume":"48","author":"Y Pleshivtseva","year":"2023","journal-title":"International Journal of Hydrogen Energy"},{"key":"ref4","article-title":"Making the Hydrogen Economy Possible: Accelerating Clean Hydrogen in an Electrified Economy","year":"2021","journal-title":"Energy Transitions Commission"},{"issue":"2","key":"ref5","doi-asserted-by":"crossref","first-page":"226","DOI":"10.1016\/j.oneear.2024.01.015","article-title":"Distinct roles of direct and indirect electrification in pathways to a renewables-dominated European energy system","volume":"7","author":"F Schreyer","year":"2024","journal-title":"One Earth"},{"issue":"12","key":"ref6","doi-asserted-by":"crossref","DOI":"10.1088\/1748-9326\/abbd02","article-title":"The CO2 reduction potential for the European industry via direct electrification of heat supply (power-to-heat)","volume":"15","author":"S Madeddu","year":"2020","journal-title":"Environ. 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