Research is being conducted to explore the potential of hydrogen gas, particularly 'green hydrogen,' as a clean and green fuel for future energy needs. Hydrogen, abundant in the universe, can be burned to release energy, with water as the only waste product. However, obtaining pure hydrogen for use as fuel requires energy to separate it from other substances it is typically bound to. Offshore wind farms present a promising solution by using excess wind energy to extract hydrogen from water during low electricity demand periods, storing it for later use when demand surges. This 'green hydrogen' production method is viewed as a sustainable approach to address the climate crisis and ensure energy security. Despite its environmental benefits, challenges remain, such as competition from cheaper but more polluting hydrogen sources like 'black hydrogen' and 'grey hydrogen' in the market. The government's National Hydrogen Strategy offers further insights into this evolving energy landscape.