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Hydrogen fuel cell cars (2020)

bmw.com

1–10 of 207 posts

Re: Hydrogen fuel cell cars (2020)

#3
There's a lot of discussion about hydrogen as an energy source for cars in Germany.

It is generally considered more ecological than electric, because of much lesser environmental footprint than required for producing batteries.

Another advantage would be bigger driving range and faster refuelling.

However, it looks like that outside of Germany, electric cars just won, and Germany itself will not be able to reverse the trend.

Re: Hydrogen fuel cell cars (2020)

#4
>However, one disadvantage of producing hydrogen is the losses during electrolysis. The overall efficiency in the “power to vehicle drive” energy chain is therefore only half the level of a BEV

That seems to be more optimistic that what I've heard in the past. What's the efficiency of electrolysis+compression (or whatever step is necessary from bubbles to fuel in a tank)? Isn't that already well below 50%? How efficient are fuel cells in converting Hydrogen back to electricity? I thought I remembered that this too was a bit worse than batteries.

Re: Hydrogen fuel cell cars (2020)

#5
As someone with little knowledge of this domain except a few articles and this link, it appears that hydrogen is better enviromentally, but the electric-car lobby disagree.

If there is a chicken and egg problem, as mentioned in the article, where mass adoption of a "better" technology is only held back due to the the number of hydrogen pumps - that seems like an appropriate point for government to step in to bridge the gap.

1) Is hydrogen the better solution?

2) Why wouldn't government recognise this and bridge the gap?

3) As the article is by BMW, what is their agenda? Why wouldn't they just accept and hop on board the prevailing EV trend?

(edit: For the Elon cult downvotes, lol, note the word "appears" above, feel free to challenge it).

Re: Hydrogen fuel cell cars (2020)

#6

There's a lot of discussion about hydrogen as an energy source for cars in Germany. It is generally considered more ecological than electric, because of much lesser environmental footprint than required for producing batteries. Another advantage would be bigger driving range and faster refuelling. However, it looks like that outside of Germany, electric cars just won, and Germany itself will not be able to reverse th…

>because of much lesser environmental footprint than required for producing batteries.

I'm very concerned about this, but have found basically zero impact for batteries, in that if one is concerned about batteries, then all that iron mining to build the rest of the car should probably be a bigger concern.

After doing research, I'm 99% sure that lithium battery environmental concerns are just concern trolling from fossil fuel interests. But I am very open to concrete new information.

Re: Hydrogen fuel cell cars (2020)

#7

There's a lot of discussion about hydrogen as an energy source for cars in Germany. It is generally considered more ecological than electric, because of much lesser environmental footprint than required for producing batteries. Another advantage would be bigger driving range and faster refuelling. However, it looks like that outside of Germany, electric cars just won, and Germany itself will not be able to reverse th…

Smaller batteries, faster cars. In Germany one can really use all the available power in stark contrast to neighboring countries. Lighter cars and fast refueling for long distance travelling are very beneficial, not only to Germany.

Re: Hydrogen fuel cell cars (2020)

#8

There's a lot of discussion about hydrogen as an energy source for cars in Germany. It is generally considered more ecological than electric, because of much lesser environmental footprint than required for producing batteries. Another advantage would be bigger driving range and faster refuelling. However, it looks like that outside of Germany, electric cars just won, and Germany itself will not be able to reverse th…

According to James May, Only Japan and Germany can support Hydrogen Fuel Cell decently https://www.youtube.com/watch?v=XytYTxQEq_Y

Re: Hydrogen fuel cell cars (2020)

#10

There's a lot of discussion about hydrogen as an energy source for cars in Germany. It is generally considered more ecological than electric, because of much lesser environmental footprint than required for producing batteries. Another advantage would be bigger driving range and faster refuelling. However, it looks like that outside of Germany, electric cars just won, and Germany itself will not be able to reverse th…

They are betting on them in Japan, and they are using the olympic village as some kind of proof of concepts with both vehicles, but also residential energy production from hydrogen. And of course the Olympic torch will use hydrogen.

Toyota are also betting on hydrogen. This is the reason why, even though they were early with hybrids, they still haven't released any purely electric cars.

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