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A forerunner of modern horizontal-axis wind generators was in service at Yalta, USSR, in 1931. This was a 100 kW generator on a 30-meter (98 ft) tower, connected to the local 6.3 kV distribution system. It was reported to have an annual capacity factor of 32 percent, not much different from current wind machines. [citation needed]
[citation needed] The Fuller Wind Turbine System was a bladeless wind turbine announced in 2010 by Solatec LLC. Saphon Energy announced a bladeless wind turbine in 2012. [27] Vortex Bladeless is attempting to produce a wind turbine that isn't actually a turbine. All generators require a magnetic field, a conductor and motion to produce electricity.
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The inventor's claims that the device is 10–30 times more efficient than small wind turbines have been refuted by tests. [2] The microWindbelt could generate 0.2 mW at a wind speed of 3.5 m/s and 5 mW at 7.5 m/s, which represent efficiencies (ηC p) of 0.21 and 0.53 respectively. Wind turbines typically have efficiencies of 1% to 10%.
Counter-rotating wind turbines Light pole wind turbine. Unconventional wind turbines are those that differ significantly from the most common types in use.. As of 2024, the most common type of wind turbine is the three-bladed upwind horizontal-axis wind turbine (HAWT), where the turbine rotor is at the front of the nacelle and facing the wind upstream of its supporting turbine tower.
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