
Along with increased interest comes exciting new technology. Take, for example, maglev wind turbines, just now transitioning from concept to reality. These turbines replace the mechanical connection between rotor and stator with a passive magnetic levitation scheme, usually utilizing the halbach array (a super-slick arrangement of magnets which cancels the magnetic field on one side of the array and amplifies it on the other side, all without electromagnetic input). This bearing-free design allows all of the wind's mechanical potential to be harnessed for conversion to electrical current, instead of a significant percentage re-radiating into the troposphere as friction-produced heat. These turbines are still limited by the efficiency of the impulse turbine (theoretically recovering ≤60% of the kinetic energy incident upon it).

Added bonus: abatement of the urban wind tunnel effect all downtown inhabitants rue on the daily.
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