Hydrogen is the way forward? Hydrogen is here now. Toyota Marai is £56000.
That is as much here now as public space travel, its very early days.
Hydrogen so you have no batteries? Hydrogen creates electricity to charge a battery to run what is basically an EV.
The battery is there for ancillaries that need continuous power and also to store regenerated power, they are equivalent power to a caravan leisure battery and are pretty cheap.
The electricity required to make hydrogen massively outweighs the electricity generated when it converts back so if there is not enough capacity to power electric vehicles how on earth will there be enough to create all that hydrogen? To create 1 kg of hydrogen requires 56kwh electricity.
But it can a classic use of surplus/off-peak electricity, electrolysis also produces oxygen at the same time which offsets the cost somewhat. Production of Hydrogen by electrolysis can be done very efficiently, the inefficient part of the process is the compression but some of that energy could be made recoverable and has been demonstrated.
Most Hydrogen is not produced by electrolysis at the moment anyway. There are also solar methods of producing hydrogen in the pipeline.
Hydrogen pumps are taking 30 mins to fill a vehicle as the connectors are freezing due to the high pressure i.e. 10000psi.
That's a minor technical issue, there are ways round it eg by initially filling the receiver with water, that way there doesn't need to be any significant decompression and hence no freezing. In any case they have already got filling down to 3 minutes, the technology is already around in NASA etc, they shove far greater amounts of liquid gas around pretty fast.
As to EVs being pushed due to being expensive? Renault Zoe is around £13000 similar if not cheaper than a Clio and pennies to run. Especially if you have solar panels.
£13000 doesn't include the batteries, you have to lease the batteries separately which costs up to about £11,000 over 8 years.
The great advantage of hydrogen is its energy density (way over 200 times greater than lithium batteries) and as the weight depletes with usage it that makes it the equivalent of 400 times greater than lithium. So you could have a range 400 times bigger the EV for the same weight, or trade it off with a much lighter vehicle.
Hydrogen could be used to drive a stirling engine and avoid the need for fuel cells, that would be a neat combination.