The world is transitioning towards a sustainable energy future, and Green Hydrogen has emerged as a game-changer in this journey. Unlike conventional hydrogen produced from fossil fuels, green hydrogen is generated from renewable sources, making it a clean, versatile, and carbon-free fuel. It holds the potential to decarbonize hard-to-abate sectors like refining, steel, fertilizers, and transportation.
In this blog, we’ll explore what green hydrogen is, how it’s produced, and the core technologies behind its process flow.
What is Green Hydrogen?
Hydrogen is the most abundant element in the universe, but on Earth, it exists bound with other elements like oxygen (in water) or carbon (in hydrocarbons). To be used as a fuel or feedstock, it must be separated.
Grey Hydrogen: Produced from natural gas (steam methane reforming), with CO₂ emissions.
Blue Hydrogen: Similar to grey, but coupled with carbon capture and storage (CCS).
Green Hydrogen: Produced via electrolysis of water using renewable electricity (solar, wind, hydro). It generates zero direct CO₂ emissions.