Green hydrogen, produced through water electrolysis powered by renewable energy sources, is gaining traction as a crucial element in the shift towards sustainable energy. Historically, high costs associated with electrolysers and electricity have impeded its widespread adoption. However, recent technological advancements are rapidly addressing these challenges. Innovations in electrode materials and membrane technology have enhanced the efficiency of electrolysers, reducing energy consumption and operational costs. Modular designs and large-scale electrolysis plants are enabling cost-effective scalability. Integration with renewable energy sources and digitalization through AI-driven control systems are further optimizing green hydrogen production. Reports from organizations like the International Renewable Energy Agency (IRENA) and the Hydrogen Council project significant cost reductions in green hydrogen production by 2030, making it competitive with traditional hydrogen sources. The global commitment to decarbonization is propelling the growth of green hydrogen projects, with substantial investments expected by 2030. These advancements in electrolyser technology are reshaping the economics of green hydrogen production, paving the way for its widespread adoption as a sustainable and affordable energy source crucial for achieving net-zero emissions and combating climate change.