Green hydrogen is taking off around the globe - its supporters say it could play an important role in decarbonisation, but sceptics question its safety and practicality.

On the edge of the Saudi Arabian desert beside the Red Sea, a futuristic city called Neom is due to be built. The $500bn (£380bn) city - complete with flying taxis and robotic domestic help - is planned to become home to a million people. And what energy product will be used both to power this city and sell to the world? Not oil. Instead, Saudi Arabia is banking on a different fuel - green hydrogen. This carbon-free fuel made is from water by using renewably produced electricity to split hydrogen molecules from oxygen molecules.

This summer, a large US gas company, Air Products & Chemicals, announced that as part of Neom it has been building a green hydrogen plant in Saudi Arabia for the past four years. The plant is powered by four gigawatts of electricity from wind and solar projects that sprawl across the desert. It claims to be the world's largest green hydrogen project - and more Saudi plants are on the drawing board.

Continued here
<