Our Technology

The Colours of Hydrogen Fuel Explained

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Brown H2

  • Brown Hydrogen is made from coal gasification.
  • The process releases CO2 into the atmosphere.
  • Production costs are from $1.2 to $2.1 per kg h2.
  • Brown Hydrogen has the highest GHG emissions of 19t CO2 / tH2.
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Coal

Coal Gasification

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Grey H2

  • Grey Hydrogen is made from steam methane reforming.
  • The process releases CO2 into the atmosphere.
  • Production costs are from $1 to $2.1 per kg h2.
  • Grey Hydrogen has high GHG emissions of 11t CO2 / tH2.
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Natural Gas

Steam Methane Reformation

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Blue H2

  • Blue Hydrogen is made from advanced gas reforming.
  • The process injects carbon into a formation with some release of CO2 into the atmosphere.
  • Production costs are from $1.5 to $2.9 per kg h2.
  • Blue Hydrogen has low GHG emissions of 0.2t CO2 / tH2.
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Natural Gas

Advanced Gas Reformation

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Green H2

  • An electrolyser is a device that uses renewable energy to convert water into green hydrogen, a powerful fuel of the future that will help decarbonise hard to abate sectors.
  • Green hydrogen holds the key to tackling climate change, but only if the hydrogen is made using 100% renewable energy sources, like wind, solar, geothermal, and hydro power.
  • The process produces Zero CO Emission's

Water

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Electricity

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Electrolysis

Green Hydrogen vs. The Rest

Brown H2
Grey H2
Blue H2
Green H2

Green H2 is the clear winner.

Emissions: Tons CO2/Tons H2

Green H2 is the clear winner.

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COMMITTED TO THE REDUCTION OF CO2

Find out more.