Environmental Engineering Reference
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Figure 3.42
The erection of a 3.6 MW Siemens test wind turbine with
direct drive and PMG near Ringkøbing, Denmark, in July 2008
(on the photo). Three years later, a 6 MW direct drive Siemens
turbine was introduced (Photo: Siemens AG) (left); In 2011,
the biggest Vestas turbine produced was the 3 MW V-140
(140 m rotor diameter). It uses PMG, but still combined with a
gearbox. In December 2010, three Vestas V-140 were placed at
the surf of the North Sea in Hvide Sande, Jutland—an optimal
onshore location (Photo: Preben Maegaard).
In 1996, the Danish wind turbine industry covered nearly 60%
of the global market for wind turbines. Of course, this position could
not be maintained in a rapidly growing global market. But in 2011,
Vestas was still the leading global producer with a market share
of 12.9%, while Siemens was number 9 with 6.3%. In 2012 the US
company GE Wind took over the leader position with Vestas on a
second place. But both the Denmark-based producers has increased
their market shares. Vestas had now 14.0%, while Siemens had
moved a third place with 9.5% [23]. And on the emerging ofshore
market the two Danish-based producers had delivered 85% of
the capacity installed until the end of 2011. Among the blade
producers, LM Glasfiber, entered the market in 1978 by producing
blades for the Riisager turbines, and was in 2011 still the world's
biggest independent producer, delivering blades for wind turbine
industries in many countries. And the wind power share of the
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