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In Thy, the NIVE group was starting up local production
of 22 kW wind turbines. However, we were not going to use the noisy
Tvind 4.5 m blades from Økær and therefore, at the later Folkecenter,
Ian Jordan and myself embarked upon building the mould for a
5 m blade with specifications similar to those from the Gedser
wind turbine from 1957, but scaled-down.
An experienced fibreglass company in Vinderup wanted to
produce the blade. The development work had gone quite far
when we were approached by Erik Grove-Nielsen who politely and
quite correctly pointed out that there was no reason to launch new
blade projects. He could not sell his products and had a workshop
in Økær equipped precisely for blade production.
We wanted a 5 m blade, but he hesitated to invest in a new
product running the risk not to be able to sell the blades afterwards.
In a week I made orders of five sets of blades! NIVE got its
blade—using Tvind blade structural design and Johannes Juul's
blade operational principles with respect to the optimal blade. The
first wind turbine with the new blades was erected east of Thisted
in 1978.
.
Figure 7.46
The bolt flange of the 5 m Økær blade for the 22 kW NIVE
windmill.
Thus this part of the history is complete: From now on no
one had to hold back. Amdi Petersen's vision turned out to give
Denmark world leadership in the most victorious form of the
clean energy types of the future. It was the first step on a long
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