Gray Hydrogen

Gray hydrogen is produced by splitting natural gas into hydrogen and carbon dioxide. This process, called steam methane reforming, releases significant CO₂ emissions into the atmosphere, contributing to climate change. It’s called “gray” because it doesn’t capture or reduce these emissions. While hydrogen is a clean fuel when used, gray hydrogen’s production method makes it less environmentally friendly compared to “green” hydrogen, which is made using renewable energy and produces little to no emissions. Gray hydrogen is currently the most common form of hydrogen production but faces challenges due to its environmental impact.