Green hydrogen, produced through electrolysis, has emerged as a critical component in the global shift towards sustainable energy. The COP28 conference in the UAE highlighted the significance of green hydrogen, with over 1,000 hydrogen plants in the pipeline worldwide. Countries like India are setting ambitious targets, aiming for 5 million tonnes per annum (MTPA) of green hydrogen production by 2030. However, there are challenges impeding the widespread adoption of hydrogen. These include the need for sustainable electricity sources for electrolysis, underdeveloped and costly infrastructure for green hydrogen production, and technological limitations such as the use of rare metals in electrolysers. The Breakthrough Agenda Report released at COP28 raised concerns about the slow uptake of low-carbon and renewable hydrogen, emphasizing the need for innovation to reduce emissions. Innovations such as next-gen PEM generators and solid oxide electrolyser cells are enhancing efficiency and lowering production costs. As renewable energy becomes more affordable and abundant, the relative cost of green hydrogen production is expected to decrease, driven by economies of scale and process improvements. The future of green hydrogen looks promising, with its potential to replace fossil fuels in various sectors and its application in fuel cells for transportation.