Hydrogen has a diverse range of applications and can be deployed in a wide range of industries.
“It’s a very powerful molecule,” DellaVigna said. “We can use it for heavy transport, we can use it for heating, and we can use it for heavy industry.”
The key, he argued, was to “produce it without CO2 emissions. And that’s why we talk about green, we talk about blue hydrogen.”
Described by the International Energy Agency as a “a versatile energy carrier,” hydrogen can be produced in a number of ways. One method includes using electrolysis, with an electric current splitting water into oxygen and hydrogen.
If the electricity used in this process comes from a renewable source such as wind or solar then some call it green or renewable hydrogen.
Blue hydrogen refers to hydrogen produced using natural gas — a fossil fuel — with the CO2 emissions generated during the process captured and stored.
Beyond blue and green the industry has other nicknames - brown, yellow, turquoise even pink hydrogen.The video below discusses some of them:
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