[Travel] What Is The Most Environmentally Friendly Vehicle?

Papa Lazarou said:

Re the move to Hydrogen fuel cell powered cars, I think there is a long way to go, and some possibly insurmountable issues.

Firstly the entire lifecycle of a Hydrogen powered car is hugely inefficient. I was going to go into details here, but in looking for a diagram to illustrate the point I came across a couple of articles that make the point far more effectively than I could.

https://insideevs.com/news/332584/efficiency-compared-battery-electric-73-hydrogen-22-ice-13/

https://www.greenoptimistic.com/hydrogen-cars-efficiency/

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I personally don't believe Hydrogen is a good fit for cars and other smaller vehicles, due to the high cost and inefficiency of the fuel across its lifecycle, BUT, as has already been adopted for larger vehicles due to the longer range hydrogen can offer. Fleets of buses or lorries all powered by large fuel cells, allow central storage and distribution of hydrogen, overcoming some of the infrastructure challenges.

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beorhthelm said:

looking at efficency alone is overlooking flexibility, storage potential of hydrogen. electricity is very difficult to store, is relativly inflexible to move and charge times poor. if you can capture excess energy, transport to point of use to be consumed on demand, this offsets the inefficency. petrol burning ICE is also poor efficency but its so energy dense and practical we've overlooked the deficencies. a compromise might be large local hydrogen fuel cells to hold renewable energy until required by the local vehicle fleet.

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Papa Lazarou said:

Are you saying the Hydrogen (pressurised) is easy to store? Safe?

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beorhthelm said:

Ellen McArthur Foundation is promoting AI controlled Uber fleet there.

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Papa Lazarou said:

I know it's not exactly what was asked, but shared usage of vehicles (EV, Hydrogen whatever) IS the future. As [MENTION=435]Stat Brother[/MENTION] shows, we hardly use our cars in the current model.

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Papa Lazarou said:

I know it's not exactly what was asked, but shared usage of vehicles (EV, Hydrogen whatever) IS the future. As [MENTION=435]Stat Brother[/MENTION] shows, we hardly use our cars in the current model.

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Stat Brother said:

[tweet] 1092418565058281473[/tweet]

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