China's Giant Flying Wind Power Station Completes World-First Urban Test at 4,000 Metres Altitude
India Today Global · 2:09 · Watch on YouTube
China has test-flown the S400, a helium-lifted airborne wind power system, over Yueyang City in Hunan Province, claiming a world record for a system designed to operate at 4,000 meters altitude — but the hard part (sa...