"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 "
Well maybe its a dead end then. You’ll have regular use of highly inefficient alternative with a huge maintenance overhead just because an emergency might happen some day?
Cool tech but entirely impractical and probably will never be deployed at any scale higher than a demo.