Airborne wind turbines suspend rotors at high altitudes without towers, using either kite-like aerodynamic structures or helium-filled aerostats to access faster, more consistent winds. Pioneers like Altaeros Energies, Magenn, and SkySails Power have moved the technology from concept to early commercial deployment. Despite the promise of significantly higher energy yields, challenges around storm safety, power transmission, and aviation interference have kept widespread commercial adoption limited, with few systems in regular operation as of 2022.