this post was submitted on 25 Sep 2025
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'Windmill': China tests world’s first megawatt-level airship to capture high winds (interestingengineering.com)
submitted 20 hours ago by kalkulat@lemmy.world to c/technology@lemmy.world
153 comments fedilink hide all child comments
 

"High-altitude winds between 1,640 and 3,281 feet (500 and 10,000 meters) above the ground are stronger and steadier than surface winds. These winds are abundant, widely available, and carbon-free.

"The physics of wind power makes this resource extremely valuable. “When wind speed doubles, the energy it carries increases eightfold, triple the speed, and you have 27 times the energy,” explained Gong Zeqi "

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[–] Poem_for_your_sprog@lemmy.world 1 points 3 hours ago (1 children)

...produces H2?

[–] humanspiral@lemmy.ca 1 points 1 hour ago

electrolysis of water (partially from starting water reservoir, and partially from air humidity = dehumidifier step), can displace water weight with increased H2 pressure in airship. Can put an infinite amount of these over ocean with no land lease costs, but moving giant ships solves the issue of thethering them.