OT EV car range

And what is the range of a hydrogen car? You'll need special tanks in the car that can withstand the huge pressures needed to allow the tank to contain a viable amount of hydrogen. That's why hydrocarbon fuels are so good - large energy density, and liquid at room temperature, so an ordinary stell tank suffices.

Toyota has the Mirai with 300 mile range, unfortunately hydrogen filling points seem more than 300 miles apart (six inside the M25, plus three others in aberdeen, leeds and swindon) so you need a lorry following you as a "mobile hydrogen refueller"

Hyundai has the Nexo, with over 400 mile range

carbon fibre wrapped I think.

600 miles in a day is hard work, but not impossible

well a typical non regular trip might be 150miles in each direction. bit a problem for a fuel car·

No wonder you learnt to drive like a Neanderthal..

Exactly. Hydrocarbon fuel in the 'petrol to diesel' sort of density is the sweet spot between being light but bulky and explosive, and too damned thick and heavy to burn easily.

If we had to dump fossil fuel we would have to synthesise diesel instead

- probably from nuclear power - if we could find a decent source of CO2 as there is too little in the air to use that easily.

Although I guess fractional distillation of liquid air might work

Pressure isn't so much an issue as leakage. And flammability. In a crash. Think 'Challenger'

Which part of uk.d-i-y needs explaining to you. Wodney?

To idiots, yes. But then Tesla owners are known for being this.

You drove across the channel? When did the bridge fall down?

First you need enough of that 'green' electricity. And that isn't going to happen any time soon.

Realistically, no-one actually knows what the final top figure will be, except that most people seem to agree that it will be about another India and China combined.

One of our kids is currently being held up because they and their neighbours are on the same "spur" off the main cable in the road. (Luckily the helpful neighbour has spare time for their access point which they can use, via a cable across the drives).

If you have available green electricity it is 3 x more efficient to use it to charge a battery vehicle than to use it to make hydrogen to use in a fuel-cell vehicle (75% vs 25%).

Whilst hydrogen cars produce zero emissions at the point of use (which is no bad thing) producing hydrogen chemically also produces large amounts of CO2. The most common process, steam methane reforming (SMR), produces

Silly person

Bill

Ah yes, hydrogen. The fuel of dreamers.

Not saying it won?t have a place in transport (buses, lorries, trains, heavy machinery) but when it?s so easy (and *way* more efficient) to fuel your car with electricity at home I suspect we?ll be dead long before we have a hydrogen infrastructure.

In LA apparently a 45 minute queue to refill at one of their hydrogen stations is apparently not uncommon.

Tim

That makes no sense at all.

What part did you fail to understand? There?s nothing idiotic about buying an EV that can be charged at home, charged at every public charger and

Tim

That still has the problem that the tank is very heavy.

But not easy to dig up or even produce.

That's a lie, you still get some pollutants because it isn't feasible to use pure oxygen to burn it.

There is no such animal as 100% green electricity.

Pity about how difficult it is to store hydrogen and the energy required to compress it enough to be viable as a transport fuel.

It remains to be seen if hydrides will be viable.

How much carbon emissions does that represent?

(in making the extra hydrogen burned)

Pity about your s*it about deserts. Not too many of those in the UK, stupid.

And they all agree it will start declining after it has peaked.