this post was submitted on 21 Sep 2023
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[–] Honytawk@lemmy.zip 54 points 1 year ago (3 children)

It isn't going to overtake electric cars, too inefficient.

But it might be the future for airplanes, which need a lot more energy density.

[–] n2burns@lemmy.ca 43 points 1 year ago

But it might be the future for airplanes, which need a lot more energy density.

Specifically density by weight. By volume, which is more important to cars, hydrogen also loses.

[–] joel_feila@lemmy.world 4 points 1 year ago (1 children)

Yes also cargo ships and possibly American sized semi trucks. Although semis are right on border of battety vs hydrogen.

[–] PersnickityPenguin@lemm.ee 1 points 1 year ago (1 children)

"American sized?"

There are semis all over the world...

[–] joel_feila@lemmy.world 1 points 1 year ago (1 children)

Yean but aren't the trucks in america large. I have seen memes making fun american semi compared to smaller loris.

[–] PersnickityPenguin@lemm.ee 2 points 1 year ago

The trucks in Japan and Europe honestly seemed just as large, albeit the can be were shorter. But then there is Canada and Mexico which trucks are identical.

[–] PersnickityPenguin@lemm.ee 1 points 1 year ago

The problem with long distance airliners though is that the turbofan powered engine has such a huge power output that is only possible using a turbine.