[Sohcahtoa82]

I wish I could upvote this twice. I grow so tired of people simping for hydrogen when batteries just win in every metric aside from the initial build cost, which when amortized over the life of the battery, will beat out hydrogen.

On top of the storage problems, and the problems of the energy needed to create the hydrogen, you then have to have a massive hydrogen distribution network that's on par with the current gas distribution network. With battery EVs, it's just a matter of building chargers that connect to the existing power grid, with many (possibly most) EV owners charging at home.

As far as I'm concerned, anybody pushing for hydrogen fueled vehicles is simply falling for marketing bullshit. Producing a hydrogen-powered car would likely become cheaper than a BEV, but they'll never be better for the environment in the long run, and will never be cheaper to operate. It's always going to be cheaper to just put electricity directly into a battery rather than use it to create hydrogen, distribute it, and then pump it.

[sofixa]

> I grow so tired of people simping for hydrogen when batteries just win in every metric aside from the initial build cost, which when amortized over the life of the battery, will beat out hydrogen

Batteries suck in energy density and weight and in some cases, that really matters. Battery electric planes are not even close to being feasible other than for very small in size and range planes. Hydrogen is at least feasible.

[Sohcahtoa82]

I challenge the assertion that hydrogen is feasible.

Is hydrogen more energy dense (in either energy per unit volume OR per unit weight) than traditional fuels?

It might be better than batteries, but I'd be surprised if it was any better than current fuels.

[GJim]

> Is hydrogen more energy dense ... than traditional fuels

Chemically, yes. But in reality, very far from it.

The bulky high pressure cylinders needed to store the gas (unlike propane etc, it doesn't liquify) easily weigh an order of magnitude more than the mass of gas they contain.

[wstrange]

Bio-Fuel seems more practical.

It reuses all the existing infrastructure and requires no engine modifications.

[sofixa]

No. It's practically impossible to scale them to the required level

https://www.youtube.com/watch?v=ADpsUhdIO4w a video by a pilot on SAF and why it just won't cut it.