RE: UK hydrogen market could hit £7B annually1 Dec 2024 16:22
Vernonya,
Where am I zeroing in on minor points and ignoring "contrary indications"?
You made claims which simply don't stand up to any sort of scrutiny, both in terms of cost and practicality.
To further that, no, the payback time for a wind turbine was infinite - a house mounted system would never pay for itself and to claim it would payback in 2 years is just fantasy, no matter how much the cost of the Turbine itself dropped.
If there were a mass market for them, it would already be here - but it's not, so to claim that mass demand would reduce prices drastically is incorrect.
Besides, if you'd been keeping an eye on what is going on w.r.t. wind power, the system costs are actually increasing, hence why CFD 5 got no bids and CFD 6 had to substantially increase the strike price offered.
This increase in wind power costs is being replicated around the World, as wind farm operators somehow thought they were immune from the basic economics of supply and demand, never mind also seeing the same inflation pressure that we have all felt since Putin invaded the Ukraine.
As for your claim about garages being blown up, this fallacy has been explained to you several times.
But to explain again, the basics of the safety systems of H2 fuelled vehicles do not allow for the type of slow leaks that you imply. Equally, the chemistry of H2 mean it will instantly disperse upwards and out of any garage.
With respect to the H2 tank, as soon as any pressure drop is detected, or the tank is compromised in any way, the system automatically vents all the fuel to atmosphere immediately.
As H2 is so light, it will disperse in a few seconds - even in a nominally 'closed' environment of a garage.
In that respect, it's safer than a Petrol or Diesel powered vehicle, as those tanks don't have those types detection or safety systems installed.
Therefore any leak from them will be onto the garage floor and will be continuous, with the resultant vapours staying there, as they are heavier than air and the much larger size of the molecules means that they cannot escape a 'closed' environment as easily.
If you are worried about having any vehicle in your garage catch fire / explode, then it should be an EV or Hybrid. In the extremely unlikely event that it catches fire, the energy in the battery means that it is almost impossible for the fire brigade to put out.
There are several videos on the Web with the effects of even a small battery powered scooter catching fire in a house.
And, as has been pointed out before, H2 fuelled vehicles have been safely used on the UK roads for many, many years - now being expanded to include lorries, Buses and even experimental trains.
Besides, using mains power in your house to electrolyse water for H2 makes as much economic sense as installing your own miniature refinery and making your own petrol / diesel - that's why you go to a petrol station to fill up, just as you'd do with H2.