“”The Magenn Power Air Rotor System (MARS) is an innovative lighter-than-air tethered device that rotates about a horizontal axis in response to winds , efficiently generating clean renewable electrical energy at a lower cost than all competing systems.
This electrical energy is transferred down the tether to a transformer at a ground station and then transferred to the electricity power grid.
Helium (an inert non-reactive lighter than air gas) sustains the Air Rotor which ascends to an altitude for best winds and its rotation also causes the Magnus effect. This provides additional lift, keeps the device stabilized, keeps it positioned within a very controlled and restricted location, and causes it to pull up overhead rather than drift downwind on its tether.
All competing wind generators use bladed two-dimensional disk-like structures and rigid towers. The Magenn Power Air Rotor system is a closed three-dimensional structure. It offers high torque, low starting speeds, and superior overall efficiency thanks to its ability to deploy higher. The closed structure allows Magenn Power to produce wind rotors from very small to very large sizes at a fraction of the cost of current wind generators.
Magenn Power is currently in the prototype phase of our Magenn Air Rotor System . Magenn Power plans to ship their first official product, a 4 kilowatt version in 2007.””
And from its informative FAQ, there will be even a backpack-sized units too:
“”Backpack size or small units may be available in one to two years. Magenn Power is looking to license this technology and may not manufacture it ourselves.””
Guess there will be lotsa potential and alternative for its size and mobility deploying in a rural area, sea, tall building , powering SOS radio/beacon or Wi-Fi device doubled as antennal, serving advertisement banner or even as old skool barrage balloon …etc :)