Renewable hydrogen, commonly referred to as 'green hydrogen,' is emerging as a crucial component in the shift towards cleaner energy systems globally. By utilizing renewable electricity to split water into hydrogen and oxygen, green hydrogen offers a sustainable and zero-emissions fuel source. Its versatility extends to applications in transportation, where hydrogen-powered fuel cells show promise for long-haul vehicles and ships, as well as in industrial processes like steel production, enabling significant carbon emission reductions. Countries worldwide, with Europe at the forefront, are actively expanding their green hydrogen production capacities and developing infrastructure, forging partnerships with other regions. This strategic approach is also mirrored by major economies such as Japan and Australia, which are making substantial investments in hydrogen technologies to facilitate international green hydrogen trade. Despite the potential benefits, challenges persist in the form of high production costs and the need for enhanced distribution and storage infrastructure. The costliness of electrolyzers, essential for hydrogen production, and the necessity of scaling up renewable energy sources for the process are key hurdles. However, advancements in technology and the realization of economies of scale are anticipated to drive down costs in the foreseeable future. Furthermore, the seamless integration of green hydrogen with existing renewable energy systems highlights its promise in balancing energy grids and storing surplus electricity. As the global momentum towards decarbonization intensifies, green hydrogen emerges as a pivotal solution in meeting climate objectives and fostering a sustainable energy landscape.