Skip to main content

What are the different types of Hydrogen-blue, green, grey, and brown?

A breakdown of hydrogen types based on production methods and carbon emissions.

Bhavya Moudgil avatar
Written by Bhavya Moudgil
Updated over 4 months ago

  1. Blue Hydrogen: Produced from natural gas, with carbon emissions captured and stored using carbon capture and storage (CCS) technology.

  2. Green Hydrogen: Generated using renewable energy sources (like wind or solar) via electrolysis, with no carbon emissions.

  3. Grey Hydrogen: Made from natural gas, but carbon emissions are released into the atmosphere, making it the most common yet least environmentally friendly method.

  4. Brown Hydrogen: Produced by gasifying coal, with carbon emissions released into the atmosphere—the most carbon-intensive method.

Did this answer your question?