Fiber Helps Energy-Generating Aerial Wind Turbine Lift Off

Kuraray America’s Vectran® fiber is used in a cable tether that suspends a new type of alternative energy device – a lighter-than-air tethered wind turbine that rotates about a a horizontal axis in response to wind, generating electrical energy.


Vectran is the core of a braided cable tether that is wrapped with copper to carry electrical currents. The tether is part of a connection system that hooks the generators on each side of the floating turbine 1,000 feet up in the air – where the winds blow steadily and reliably – to the ground below and transfers electricity that can be used immediately or stored in batteries. The fiber’s high strength and light weight made it ideal for this new rotating aircraft, according to the developers. The fiber can hold up to 20,000 lb.

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Comment by Voy Anuszkiewicz on December 5, 2008 at 12:30pm
Is there any information available on the watt output and price projections of these units?
Comment by Scott L. on December 4, 2008 at 9:52pm
What would a cloud of these do to air traffic though?
Comment by Ali on December 4, 2008 at 2:24pm
Hi Marshall
Thank you;
Comment by Marshall Matheson on December 4, 2008 at 11:12am
Hi Ali - found some specs here at the Magenn site>>

# Magenn Power Air Rotor System will deliver time-averaged output much closer to its rated capacity than the capacity factor typical with conventional designs. Magenn efficiency will be 40 to 50 percent. This is hugely important, since doubling capacity factor cuts the cost of each delivered watt by half.
# Wind farms can be placed closer to demand centers, reducing transmission line costs and transmission line loses.
# Conventional wind generators are only operable in wind speeds between 3 meters/sec and 28 meters/sec. Magenn Air Rotors are operable between 1 meter/sec and in excess of 28 meters/sec.
# Magenn Air Rotors can be raised to higher altitudes, thus capitalizing on higher winds aloft. Altitudes from 400-ft to 1,000-ft above ground level are possible, without having to build an expensive tower, or use a crane to perform maintenance.
Comment by Ali on December 4, 2008 at 10:49am
Hello Dear marshall;
Special thanks for your helpfull note's in this forum;
this is wonderfull thing, can you say us about this generator dimentions and it's maximum outputs?

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