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hundred units, most of them to German customers. In 1980 a 15 kW
Brümmer turbine successfully underwent tests at the Pellworm
site. Larger machines up to 200 kW were developed. However,
with the advent of grid-connected wind turbines in the 1980s,
Brümmer lost market shares, since his machines only operated
as stand-alone units while no grid-connected machines were ever
designed. In 1990 the last Brümmer unit was sold. Despite, the
turbines were marketed until the 2000s.
Figure 18.6
Early Brümmer turbine near Altenbeken, Germany, 2006. Note
the simple blades of welded steel and two sections, the guyed-
pipe and the downwind rotor (Photo: Arne Jaeger).
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