Hydrogen energy is gaining attention as a potential green alternative to traditional fossil fuels due to its clean combustion process that produces only heat and water. However, the majority of hydrogen production globally comes from fossil fuels, with green hydrogen, produced using renewable electricity, accounting for less than 1%. The high cost of green hydrogen production, around 2-3 times more than grey hydrogen, is a significant barrier. Despite this, countries like China, the European Union, the United States, and Germany are heavily investing in hydrogen infrastructure and promoting renewable hydrogen projects. China, for example, aims to have 50,000 hydrogen-powered vehicles by 2025 and has outlined ambitious targets for renewable-based hydrogen production. In the US, legislation has been passed to authorize significant funding for clean hydrogen projects with the aim of reducing production costs to make green hydrogen more affordable for consumers. As the global hydrogen industry continues to grow, the race to build hydrogen infrastructure and increase renewable hydrogen production is escalating, with countries recognizing the potential of hydrogen energy in reducing emissions and promoting a greener future.