2030

What Is Green Hydrogen and Why It Matters Green hydrogen refers to hydrogen fuel produced using renewable energy (like solar or wind) to split water molecules via electrolysis, yielding hydrogen gas with zero greenhouse gas emissions businesswire.com. It contrasts with traditional “grey” hydrogen, made from natural gas via steam reforming (releasing CO₂), and “blue” hydrogen, which is similarly made from fossil fuels but with carbon capture to reduce emissions globenewswire.com. Because green hydrogen’s production doesn’t emit carbon and its use (in fuel cells, turbines or industrial processes) only produces water vapor, it is seen as a crucial clean energy carrier