Hydrogen production, storage, utilisation and environmental impacts: a review

Abstract Dihydrogen (H 2 ), commonly named ‘hydrogen’, is increasingly recognised as a clean and reliable energy vector for decarbonisation and defossilisation by various sectors. Hydrogen is used in power systems, transportation, hydrocarbon and ammonia production, and metallugical industries.

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• 1 The global hydrogen demand is projected to increase from 70 million tonnes in 2019 to 120 million tonnes by 2024.
• 2 Hydrogen development should also meet the seventh goal of ‘affordable and clean energy’ of the United Nations.
• 3 Here we review hydrogen production and life cycle analysis, hydrogen geological storage and hydrogen utilisation.

These innovations can translate to real-world improvements in technology, infrastructure, and everyday tools.

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