China tests 220-foot helium-filled wind turbine
Quelle: KameraOne English (Glomex)
China's S4000 airborne wind energy system completed its first urban test flight in Yueyang, Hunan Province, on November 6. The 220-foot-long helium-filled platform is designed to generate electricity from strong winds up to 13,100 feet high and send it to the ground through a tether.