Wind blows stronger and more consistently as you rise above ground obstacles like buildings, trees, and hills. This makes for a lucrative green energy source—assuming you can lift generators 1000 feet in the air. This Airborne Wind Turbine could well become the first.
Altaeros Energies is currently developing the Airborne Wind Turbine (AWT). It consists of a cylindrical series of helium-filled bladders that surround a central turbine. The AWT's shape ensures that it consistently faces the wind and the entire assembly is anchored to the ground via an electrically-conductive tether. Since the AWT doesn't rely on propellers or mechanical processes to stay aloft, it can remain in the air for much longer and at a greatly reduced cost.