T1.1a Sources and Technologies for green hydrogen production: a review

This report was prepared as a part of the “Hydrogen economy in the food system” (Vetytalouden mahdollisuudet ruokaketjussa) project. The project was co-funded by the European Regional Development Fund (ERDF), the Regional Council of South Ostrobothnia, Etelä-Pohjanmaan korkeakoulusäätiö, Seinäjoki University of Applied Sciences, University of Vaasa, and Tampere University Foundation sr. The primary objective of this report is to provide a comprehensive review of sustainable hydrogen production systems, that could guide energy companies, various industries, food chain companies and entrepreneurs, landowners, start-up companies, regional developers, experts, and other organizations in South Ostrobothnia. The report is organized as follows: Chapter 2 outlines the main hydrogen production methods, classified by the raw material used. The different hydrogen production processes and their technology readiness levels (TRLs) are then described in more detail in Chapters 3, 4, and 5: Chapter 3 focuses on traditional methane-based hydrogen production processes, biomass-based technologies are described in Chapter 4, and water-splitting technologies in Chapter 5. Finally, Chapter 6 summarizes the key findings.