Green hydrogen revolution: Advancing electrolysis, market integration, and sustainable energy transitions towards a net-zero future

• Green hydrogen cuts CO₂ emissions by up to 6 gigatons annually by 2050. • Electrolyzer efficiencies range from 70 % (AEL) to 90 % (SOEL). • Green hydrogen cost is dropping, projected to reach $1.50/kg by 2030. • Major investments in green hydrogen surpass $500 billion by 2024. • Key projects and policies, like NEOM and the EU Hydrogen Strategy, drive global adoption. Green hydrogen is emerging as a key driver in global decarbonization efforts, particularly in hard-to-abate sectors such as steel manufacturing, ammonia production, and long-distance transportation. This study evaluates the techno-economic and environmental aspects of green hydrogen production, storage, and integration with renewable energy…