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potential area but a rising market and a large federal subsidy
program for the 1990s [1].
Figure 18.2
One of Enercon's first turbines: 55 kW Enercon-15 located in
Norden, northern Germany, 2006. Note the Danish AeroStar
7.5 m blades used for the first Enercons.
Governmental activities were ceased in the early 1990s due
to lack of success and a rising private sector. Despite all the negative
aspects related to the federal projects it should not be left without
notice that these projects still were beneficial to the German wind
industry and its technological progress, respectively: The amount
of experience in design, manufacture and operation of large wind
turbines was very big and influential for the years to come. The
insights gained during these activities were very important for
the private sector. Finally, Germany impressively demonstrated the
will to utilise wind energy.
18.2.1.2
Overview of federal wind projects
The following text presents an overview of greater German federal
research wind projects.
Pellworm Test Site: 1980-1983
The test field on the island Pellworm in northern Germany was
one of the very few federal research projects using small wind
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