The Buoyant Air Turbine (or BAT), developed by Altaeros Energies, uses an inflatable shell to float 1,000 to 2,000 feet above ground, where winds blow five to eight times stronger, and more consistently, than winds at tower level. Courtesy of Altaeros Energies MIT alumni develop airborne wind turbine that floats 1,000 feet aloft to capture... Read more »