Hydrogen production, storage, transportation and utilization for energy
Based on the recent reports and analysis of the International Energy Agency (IEA), the annual global demand for hydrogen production in 2022 was 94 million tons (Mt), most of which is met through the production of hydrogen from fossil fuels involving immense greenhouse gas (GHG) emissions, i.e., 830 Mt/year of CO 2 [2, 3]. Fig. 1 (a) shows the percentage of