There’s a lot of excitement at the moment about the possibility of the elemental gas hydrogen being used as a fuel. And it’s easy to see why. Hydrogen is potentially one of the best fuels around.
Kilogram for kilogram, hydrogen is the king of energy content with a whopping 2.6 times more energy...
https://www.shippingaustralia.com.au/hydrogen-fuel-clean-plentiful-and-not-ready/