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BSdetect

(9,048 posts) Mon Mar 9, 2020, 09:41 AM Mar 2020

A pound of compressed H has 200 times as much energy as a pound of batteries.

https://www.wired.com/story/alakai-flying-car-air-taxi-evtol-hydrogen/

And recent breakthroughs in H production costs and speed make this even more feasible.

7 replies

= new reply since forum marked as read

Highlight:

Flying "cars" on H [View all] BSdetect Mar 2020 OP

There are two ways to create H2 Miguelito Loveless Mar 2020 #1

Need to power electrolysis with solar... Wounded Bear Mar 2020 #2

And cheaper to store H than batteries. BSdetect Mar 2020 #3

And quite a bit less toxic... Wounded Bear Mar 2020 #4

Cobalt has been reduced 90% in the current genereation of batteries Miguelito Loveless Mar 2020 #6

Look up the term "hydrogen embrittlement" Miguelito Loveless Mar 2020 #7

Even if free, you still get way less energy out of the system. Miguelito Loveless Mar 2020 #5