Altaeros Energy’s Buoyant Airborne Turbine, or BAT, is the beginnings of a new step for Wind Energy. This turbine is not on a tower, but a helium blimp housing a turbine which is tethered to the ground from about 300 meters in the air (making it the worlds highest wind turbine!). The air is not only more powerful as you climb higher into the atmosphere, but the technology is less prone to problem. Without the massive steel tower, and yaw mechanism which rotates the turbine to face the wind as it changes, the maintenance is much less significant. The turbine also is quieter, while producing more energy! Although this technology is only in prototype phase, tests have been positive. Now being tested over Alaska, CEO Ben Glass predicts to provide power at about $0.18 per kilowatt-hour, about half the price of off-grid electricity in Alaska.
It seems like this is a win for energy efficiency and standards of living! Kudos to Altaeros! Find a full article, from The Spirit Science here: Wind Turbines Take to the Skies to Generate a Magnificent Quanta of Energy VIDEO! , as well as from IEEE Spectrum here.