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Contributor
Sara Moarif
Head of Environment and Climate Change (ECC) Unit. Sara Moarif has been head of the Environment and Climate Change Unit at the IEA since late 2019. In this role she oversees a range of internal and external work on energy and environment policy issues, from carbon pricing systems in the power sector to the climate resilience of energy systems, along with IEA participation in the OECD-IEA Climate Change Expert Group and parts of the IEA's international climate-related engagement.
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Contributor
Dr Sarquis José Buainain Sarquis
Ambassador, Delegate of Brazil to the OECD and other economic organisations in Paris. An economist and career diplomat since 1991, Ambassador Sarquis has worked in the fields of economics, finance, international trade, investment, and development. He has also authored papers and taught undergraduate and graduate courses in these fields.He is currently Brazil’s representative to the OECD and other international economic organisations in Paris. Previously, he was Secretary for Foreign Trade and Economic Affairs and G20 Sherpa (2020-2023) and Vice President and Chief Risk Officer at the New Development Bank (2018-2020).Ambassador Sarquis holds a PhD and a MSc in Economics from the London School of Economics and Political Science (LSE) and a BSc in Electronic Engineering from the Polytechnic School of the Federal University of Rio de Janeiro (UFRJ). He is also a graduate of Brazil’s diplomatic academy - Instituto Rio Branco.
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Contributor
Emma Wink
Sustainable Finance Specialist and Project Lead, BASE. Emma Wink is a Sustainable Finance Specialist and Project Lead at BASE, where she focuses on scaling the use of innovative business models such as 'Cooling-as-a-Service' to accelerate the energy transition and circular economy. Emma holds a Master of Science in Sustainable Development from the University of Basel.
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Contributor
Erica Westenberg
Director of Governance Programs, Natural Resource Governance Institute.
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Fuel report
Jun 2026
Global Hydrogen Review 2026 Cost acceptability
Analysis of the costs of hydrogen in different end-uses enables identification of the maximum acceptable costs for hydrogen users, i.e. the maximum amount that can be spent on the hydrogen feedstock within a low-emissions pathway while maintaining the same total levelised cost of production as the incumbent pathway to produce the same commodity.This can enable policy makers and investors to identify sectors with both high maximum acceptable hydrogen costs and high potential volumes that can serve as lead markets for low-emissions hydrogen. Cost acceptability can be influenced by policies and depends on technologies, fuels and…
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Country report
Mar 2025
Unlocking Ukraine’s Hydrogen Opportunity: A Roadmap Policy recommendations for the coming 2-3 years
Prioritise deployment of renewables to boost energy security and create an enabling environment for future hydrogen development Ukraine currently lacks adequate power generation capacity and restoring energy security must be a priority. Any activity focused on accelerating deployment of renewables will have positive spillover effects for hydrogen, by building experience across the workforce and companies and helping to build confidence among potential investors. This will also indirectly reduce the cost of capital by reducing the uncertainties related with renewable electricity generation. Similarly, any efforts related to permitting and administrative processes for renewables can also support the creation of standardised processes…
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