The difference between green and grey energy

What are grey and green energy?

Grey Energy

The 2015 Toyota Mirai is one of the first hydrogen fuel cell vehicles to be sold commercially

This is an example of grey energy.

It comes in a green cloak, but underneath it is exactly as damaging to the environment as before.

Green Energy

Energy Farm

This raises the question of how to get the energy to where it is needed.

Applications of green hydrogen


H2 cell station in the Netherlands
H2 bus
  • a) the cost of the fuel cells which recombine the hydrogen with oxygen to give water and electrical energy, and
  • b) finding areas of application in which investments into infrastructures are required at critical locations.
Hydrogen fuel cell truck verification to start in spring 2022
Hydrogen ‘plane pods’ concept by Airbus

And apart from mobility?


Energy from renewable sources is the primary bottleneck on the way to decarbonisation.



Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Dr. Audrey-Flore Ngomsik

Dr. Audrey-Flore Ngomsik


Co-Fonder of Trianon Scientific Communication. Expert in Corporate Social Responsibility & Sustainable Development for profitability—