And I can tell you *right now* what will happen with Daejon's hydrogen tram
They'll celebrate that building the line cost them a bit less than if they put up overhead wires
Then the reliability of the hydrogen fuel cells will drop, so the line will be less reliable than a regular tram
Then the costs of keeping on having to refuel the hydrogen will mount
And then - 5 years later - anyone not in denial will realise the project was a failure, and electrify
Tip: GET TO THE FINAL STAGE NOW!