SICHUAN, China: Developers in southwest China say they have successfully completed a test flight of what they describe as the world’s first megawatt-class airborne wind energy system, marking a potential step forward in renewable power technology.

The system, known as the S2000 Stratosphere Airborne Wind Energy System (SAWES), was tested in Yibin, Sichuan province. According to project developers, the device operated at an altitude of around 2,000 metres, generating electricity that was directly connected to the power grid during the flight.

The test reportedly lasted about 30 minutes, producing approximately 385 kilowatt-hours of electricity. Developers say a single SAWES unit is designed to deliver up to three megawatts of power under optimal conditions.

Unlike conventional wind turbines, the airborne system does not rely on tall towers and is intended to harness stronger and more consistent winds at higher altitudes. Developers argue the approach could reduce land use and environmental impact, although experts note that further testing will be required to assess long-term safety, reliability, and regulatory compliance.