Networks of Wind Energy Enthusiasts and the Development of the “Danish Concept” - Wind Power for the World: The Rise of Modern Wind Energy - page 142

Figure 5.19 Smedemester/NIVE 22 kW wind turbine.

Many attributes of the Gedser, aside from the basic
configuration, were also used in the 22 kW design including the
asynchronous generator, electrical yawing and automatic control
system. To build the turbine locally, the NIVE team saw that the
critical component would be the blades. Each component was
readily available, could be ordered, or could be easily constructed
by local companies and blacksmiths except for the blade and
the control system. Maegaard worked with a local controls engineer
from Thisted, Finn Bendix, to design the system of relay controls
for start-up, shut-down, grid connection and so on, and at
the same time, his team began to construct a mould for the 5 m
blade which was based on the Gedser blades more so than the
more aerodynamically optimised Tvind blade design.
Before the group at NIVE had a chance to complete the model,
the team came into contact with Erik Grove-Nielsen of Økær
in Viborg, also in Jutland. Erik had realised from early OVE and
NOAH meetings that wind turbine self-builders had problems
with creating the blades. In 1977, Erik had attempted to make a

smaller 11 kW version (4.5 m blade) of the Tvind windmill. He
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See chapter Økær Vind Energi—Standard Blades for the Early Wind Industry by

Erik Grove-Nielsen.