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    The Color Chart of Hydrogen

    Unlocking the Code to the Hydrogen Colour Chart

    The Color Chart of Hydrogen

    Unlocking the code to the Hydrogen Color Chart

    Who knew there were so many different colours of Hydrogen – from green to pink and everything in between, there is a rainbow of hydrogen colours.

    To be clear hydrogen is an invisible gas and there are no visible difference between the different colours of hydrogen. The colours represent different hydrogen production options. Green hydrogen, blue hydrogen, brown hydrogen, yellow hydrogen, turquoise hydrogen and pink hydrogen, are essentially colour codes used within the energy industry to differentiate the pathways to produce hydrogen.

    The Hydrogen Color Chart

    Green Hydrogen - Color ChartGreen Hydrogen:
    Is produced with no harmful greenhouse gas emissions. Green hydrogen is made by using clean electricity from surplus renewable energy sources, such as solar or wind power, to electrolyse water. Electrolysers use an electrochemical reaction to split water into its components of hydrogen and oxygen, emitting zero-carbon dioxide in the process.

    Green hydrogen currently makes up a small percentage of the overall hydrogen, because production is expensive. Just as energy from wind power has reduced in price, green hydrogen will come down in price as it becomes more common.

    Blue Hydrogen - Color ChartBlue hydrogen:
    Blue hydrogen is produced mainly from natural gas, using a process called steam reforming, which brings together natural gas and heated water in the form of steam. The output is hydrogen – but also carbon dioxide as a by-product. That means carbon capture and storage (CCUS) is essential to trap and store this carbon.

    Blue hydrogen is sometimes described as ‘low-carbon hydrogen’ as the steam reforming process doesn’t actually avoid the creation of greenhouse gases.

    Pink Hydrogen - Color ChartPink Hydrogen:
    Pink hydrogen is generated through electrolysis powered by nuclear energy. In addition, the very high temperatures from nuclear reactors can be used in other hydrogen productions by producing steam for more efficient electrolysis or fossil gas-based steam methane reforming.

    * can also be referred to as purple hydrogen or red hydrogen.

    Yellow Hydrogen - Color ChartYellow Hydrogen:
    Yellow hydrogen is a relatively new phrase for hydrogen made through electrolysis using solar power.


    White Hydrogen - Color ChartWhite Hydrogen:
    White hydrogen is a naturally-occurring geological hydrogen found in underground deposits and created through fracking. There are no strategies to exploit this hydrogen at present.


    TURQUOISE Hydrogen - Hydrogen Color ChartTurquoise Hydrogen:
    This is a new entry in the hydrogen colour charts and production has yet to be proven at scale. Turquoise hydrogen is made using a process called methane pyrolysis to produce hydrogen and solid carbon. In the future, turquoise hydrogen may be valued as a low-emission hydrogen, dependent on the thermal process being powered with renewable energy and the carbon being permanently stored or used.

    Grey Hydrogen - Hydrogen Color ChartGrey Hydrogen:
    Currently, this is the most common form of hydrogen production. Grey hydrogen is created from natural gas, or methane, using steam methane reformation but without capturing the greenhouse gases made in the process.


    Black / Brown Hydrogen - Hydrogen Color ChartBlack and Brown Hydrogen:
    Using black coal or lignite (brown coal) in the hydrogen-making process, these black and brown hydrogen are the absolute opposite of green hydrogen in the hydrogen spectrum and the most environmentally damaging.


    Hydrogen is a rising star. versatile and environmentally friendly, hydrogen produces no CO2 when combusted, only water and heat. It can be used to decarbonise electricity, heating, transport and industry. A clean energy vector, hydrogen is easily transported, stored and blended with current fuels. To meet net zero, most agree hydrogen is our energy future.


    Why AiM Went Net Zero

    As a leading service provider to the energy industry in Canada, we recognize the importance of climate change and wants to contribute to the energy transition. We know we are not a large, emission intensive corporation, but we want to send a message emphasizing our commitment towards being a leading Canadian Net Zero energy service provider. #Measure #Reduce #Leverage

    Read our journey to becoming Net Zero:

    AIM-Land Circle R2
    Brandon Lamb Small
    Brandon Lamb
    Leader of Net Zero Initiative | AiM Land
    D: 403-714-9680
    AiM Land Services