Siemens Wind Power
Siemens Wind energy is the wind energy division of Siemens. Headquartered in Hamburg, manufacturing and test areas are operated in Denmark. In 2012, Siemens was by newly installed capacity behind GE Wind Energy and Vestas in third place worldwide leading manufacturer of wind turbines. In 2011, Siemens had stood with a defined performance of 2591 MW or 6.3% of the global market place 9. In the offshore sector, Siemens is wind energy with a share of 56 % of total capacity before Vestas with 23% of the manufacturer with the most installations (as of end of 2012). This year, Siemens supplied 83 % of newly installed offshore installations. Major offshore wind farm with Siemens turbines are the wind farms " Walney ", " Gwynt y Môr ", " Greater Gabbard ", " London Array " and " Anholt " however, in Germany Siemens wind turbines, for example, at the offshore wind farm " Riffgat " and " Sea Wind " was used.
The wind turbine manufacturer developed from the former company bonus AS (Denmark, Vindkraft A / S was founded in 1980 as Danregn ), and AN Wind Energy GmbH (Bremen, Germany ).
In 1991, eleven 450 kW Bonus turbines in Vindeby wind farm (Denmark ), the first offshore wind park in the world, installed. Bonus AS was acquired by Siemens in October 2004 for an undisclosed amount, the price was estimated to be 250 to 400 million U.S. dollars ( 1.5 to 2.5 billion Danish kroner ). Bonus made at that time with 750 employees, a turnover of 300 million euros. In November 2005, the business was expanded by the purchase of the company from Bremen, IN Wind Energy GmbH. This company was since 1989 partner and licensee of Bonus Energy in Germany and drove here the types of plant of the Danish partner under the name AN Bonus.
In July 2012, the Danish energy company Dong Energy placed a major order for 300 turbines of type SWT - 6.0 -154 to be built in 2014-2017 in an offshore wind farm in the UK.
In December 2013, Siemens received the largest order in wind energy, which was awarded to date in the onshore wind industry. The U.S. energy company MidAmerican ordered for five wind farms a total of 448 wind turbines of type SWT -2.3- 108 with a total capacity of 1050 MW.
Types of wind turbines
Siemens Wind Energy manufactures wind turbines for both offshore and onshore locations. Technically picks Siemens to two different plant concepts back: a conventional system design with doubly - fed induction generator ( DFIG ) and three-stage transmission gear and a gearless design, in which a synchronous generator with permanent excitation (PMG ) is driven directly from the rotor.
Early 2013, Siemens announced that the various wind turbines are the future belong to four product platforms, which denotes Siemens as G2, G4, D3 and D6. Each platform consists of multiple modules, whereby different types of systems can be offered within a platform depending on the location. The letter, therefore, represents the type of the drive train, where G stands for gearbox system and D for direct drive, the number indicates the power class.
In December 2012, Siemens built the prototype of the wind turbine SWT - 4.0 -130, a development of the SWT -3.6 -120, initially still the 120 - meter rotor serving as the technical basis turbine is used. The plant, which is equipped with a rotor diameter of 130 meters above a rated output of 4 MW is to be made from 2015 series.