Hydrogen is hailed as a crucial element in the journey towards achieving net-zero emissions and decarbonizing various sectors. While burning hydrogen produces no harmful CO2 emissions, its production remains a challenge due to its energy-intensive nature. Different colors of hydrogen signify how it is manufactured, with green hydrogen being the cleanest, produced using renewables. The energy industry uses colors like green, blue, black, or brown to distinguish the environmental impact of hydrogen production methods. Applications of hydrogen are vast, from decarbonizing heavy industries like steelmaking to powering transportation through fuel cells in cars, buses, trains, and ships. Moreover, hydrogen presents a viable solution for long-duration energy storage to complement renewable sources. Companies like Centrica are actively involved in exploring the production, transportation, and storage of hydrogen to propel the transition to a sustainable energy future. The potential of hydrogen in heating homes, blending with natural gas, and serving as a reliable energy source demonstrates its versatility in various sectors. Initiatives like the Equinor hydrogen production project in the Humber region showcase the collaborative efforts to establish a hydrogen economy and combat climate change.