Buoyant Air Turbine harnesses high-altitude winds generating up to 2X as much energy as conventional wind turbines of similar size

https://www.wecb.fm/as-tall-as-a-skyscraper-and-8-times-more-powerful-than-a-wind-turbine-this-new-turbine-is-the-key-to-energy-independence/#google_vignette

"circular inflatable durable fabric shell... 300 - 600 altitudes, capturing winds 5 - 8X stronger than those of lower heights... autonomously adjusts altitude automatically optimizing wind capture... initial deployment in rural Alaska... 18 cents/ KWh... easy to deploy... remote communities"