On 5 January 2026, the skies of Yibin were briefly darkened by the S2000 Stratosphere Airborne Wind Energy System (SAWES) – a buoyant air turbine (BAT) measuring 60m in length, 40m in width and 40m in height (197 × 131 × 131ft). The helium-powered platform rose to around 2,000m (6,560ft) in 30 minutes, generating 385kWh-hours (kWh) of power for the local grid. If claims around the device are correct, it is the world’s first megawatt-scale high-a…
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