History of Danish Wind Power - Wind Power for the World: The Rise of Modern Wind Energy - page 44

Statistics from the Danish factory inspection indicates that
this development culminated in the years before and during the
First World War. In 1916, the number of new installed windmills
in the statistics reached a maximum of more than 1 300.

3.5 Denmark on a Different Path of Windmill

Production

These numbers could be compared with data from Germany from
the same period. Here statistics from 1925 show that 6 700 farms
used wind power at that time and Matthias Heymann [7] has
estimated that a maximum of around 8 300 windmills were used in
Germany in the years before the First World War. This means that
a maximum of 1% of the German farms used wind power—while
in Denmark as a whole it was more than 8% in 1923.
Already when the first simple “farm windmills” were introduced
in the 1860s, there was a high degree of regional diversification in
the use of wind power in Denmark. The strongest concentrations
of windmills were found in the northern and northwestern part of
Jutland, where the wind resources were most abundant. Later, the
same pattern of wind power usage was found for the new “wind
motors”. In 1923, one out of four farms in northern Jutland used
wind power to drive the grain, threshing machine, chaf cutter
and other farming machinery. In southeastern Jutland and on the
islands Funen and Zealand only 5%-10% of the farms used wind
power and there it was primarily used for water pumping.
Also on the manufacturing side the development in Denmark
was diferent from Germany. When it culminated around 1912-
1913, the German market was (still according to Heymann) divided
between a few rather large manufacturers located in the big cities,
with one single factory producing more than half of the 500-600
units delivered per year. In Denmark, there was a multitude of
small and middle-size producers—many of them located in small
communities—and 10 to 15 enterprises reached a yearly maximum
production of 50-100 units or more. The major part of new
manufacturers of wind motors were-like the windmills-located
in the northwestern part of the country. Around 1910, more than
10 the factories with wind motors as an important product were
placed in this area.