The advertisement that renewable hydrogen aspirant Hydrox Holdings placed in Mining Weekly’s fuel cells feature quoted Jules Verne as saying as long ago as 1874: “One day, water will be used as fuel – the hydrogen and oxygen which constitute it will provide an inexhaustible source of energy.” The good news is that, at last, Jules Verne is having his way. Lower-cost renewable energy has made water electrolysis an economically viable proposition and liquid organic hydrogen carrier technology has raised hydrogen’s game as a versatile, zero-emission universal energy carrier that can make use of bought and paid-for oil infrastructure. It has infinite supply and high energy density, and can be stored in large quantities for long periods.