Green vs Blue Hydrogen: Understanding the Difference

Hydrogen is increasingly being seen as a key player in the transition to a cleaner energy future. Two terms that often come up in discussions about hydrogen production are green and blue hydrogen. But what exactly is the difference between the two, and does it make a significant impact for most Australians?

Green Hydrogen

Green hydrogen is produced using renewable energy sources, such as wind or solar power, to electrolyze water and separate hydrogen from oxygen. This process is emission-free and produces hydrogen with a very low carbon footprint. Green hydrogen is considered a clean and sustainable fuel that can help reduce greenhouse gas emissions.

Blue Hydrogen

Blue hydrogen, on the other hand, is produced from natural gas through a process called steam methane reforming (SMR). While this process does produce carbon emissions, the carbon is captured and stored using carbon capture and storage (CCS) technology. This makes blue hydrogen a lower-carbon alternative to traditional hydrogen production methods.

Does it Make a Difference for Australians?

For most Australians, the difference between green and blue hydrogen may not have a significant impact. Australia is a major producer of natural gas, which makes blue hydrogen a more viable option in terms of infrastructure and existing resources. Additionally, the country has abundant renewable energy sources that can be used to produce green hydrogen in the future.

Ultimately, the choice between green and blue hydrogen will depend on various factors, including cost, availability of resources, and environmental considerations. Both types of hydrogen have the potential to play a role in Australia’s energy transition and contribute to a more sustainable future.