Enercon
Enercon GmbH is a wind turbine manufacturer based in Aurich, Lower Saxony, Germany. It has been the market leader in Germany since the mid-1990s. Enercon has production facilities in Germany (Aurich, Emden and Magdeburg), Brazil, India, Canada, Turkey and Portugal. In June 2010, Enercon announced that they would be setting up Irish headquarters in Tralee. , Enercon had installed more than 26,300 wind turbines, with a power generating capacity exceeding 43 GW. The most-often installed model is the E-40, which pioneered the gearbox-less design in 1993. As of July 2011, Enercon has a market share of 7.2% world-wide (fifth-highest) and 59.2% in Germany. Technologies Enercon wind turbines have some special technical features compared to turbines of most other manufacturers. Characteristic is the gearless propulsion concept, which Enercon pioneered since 1993. The first generation of gearless turbines was the E-40/500 kW series. (Earlier Enercon designs had a transmission train.) The hub with the rotor blades connects directly to the rotor of the ring generator (direct drive). The rotor unit rotates on a front and rear main bearing about a fixed axis. The speed of the rotor is transmitted directly to the high-pole synchronous generator, where the rotor rotates in the stator,