Green hydrogen, although an energy carrier and not a source, holds transformative potential in addressing energy supply and emissions challenges. The current reliance on dirty hydrogen sourced from fossil fuels poses environmental concerns, but the shift to clean hydrogen is crucial for a net-zero future. Challenges such as storage, handling, and cost efficiency must be overcome for green hydrogen to realize its full potential. Research indicates that hydrogen could play a key role in Switzerland's clean energy mix by 2050, driving efforts to reduce carbon emissions. Despite hurdles, hydrogen's properties make it versatile for various applications, from electricity generation to fueling transportation. Technological breakthroughs are propelling the market adoption of green hydrogen, particularly in sectors contributing significantly to greenhouse gas emissions. Overall, the renewed interest in hydrogen stems from its ability to store renewable energy and produce carbon-neutral fuels, offering a promising solution in the fight against climate change.