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World's first 4,000-meter airborne wind turbine tested by China — its 747-sized helium blimp generates megawatt power from high-altitude winds (www.techradar.com)

submitted 1 month ago by schizoidman@lemmy.zip to c/energy@slrpnk.net

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[–] atro_city@fedia.io 0 points 1 month ago (1 children)

How much would it cost per kWh and what could the density be of these generators be?

[–] poVoq@slrpnk.net 0 points 1 month ago (1 children)

The original article has some details that Techradar forgot to copy:

The developers estimated that the costs of electricity generated at 3,000 metres would approach those of conventional ground-based wind power generation. At 9,000 metres, they said, the systems could operate for more than 8,000 hours a year, generating power at 0.03 yuan – less than half a US cent – per kilowatt-hour.

[–] Diplomjodler3@lemmy.world 0 points 1 month ago

So it's the capacity factor that makes it viable. Makes sense.