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'Windmill': China tests world’s first megawatt-level airship to capture high winds
(interestingengineering.com)
This is a most excellent place for technology news and articles.
It has emergency quick deploy flexibility but seems economical as permanent installation too. Where emergency power can charge 50c/kwh+ instead of 10c/kwh, relocating quickly is much more power/profitablity than gasoline generators (which cost 50c/kwh in just fuel costs which also need emergency transportation).