Last month Altaeros Energies demonstrated its Airborne Wind Turbine, a 35-foot-wide blimp that could carry a turbine hundreds of feet into the air in order to harness stronger winds. While we had heard about the achievement, the company has now released a video showing the AWT in action. The clip shows the turbine blimp being tested 350 feet in the air, where it managed to generate twice the amount of power as a land-based turbine and then transfer it back to the ground through special tethers. It's impressive to watch, but the company has even bigger plans for the AWT — eventually it's expected to reach heights of over 1,000 feet.