Obtaining precise wind energy data isn't easy
Wind power
is one of the fastest growing renewable energy sectors in the world but wind
turbines still need to improve their efficiency in order to challenge fossil
fuels. This is the main reason why wind energy developers need to ensure that
wind turbines are optimally positioned and dimensioned. Only this can guarantee
maximum wind energy output from certain site.
There are
several important factors that wind energy developers must consider in order to
make wind farm as efficient as possible, especially what kind wind speeds
predominate at the site, and also what kind of turbulence is to be expected.
Obtaining
precise data is not easy because even topography of site has major impact on
wind conditions, for instance forests and hills can significantly hamper the
analysis of wind conditions (trees decelerate ground-level winds and create
turbulence) so it's really hard to obtain perfect precision in measuring
projected wind power output.
In order to
obtain more accurate wind energy forecasts German researchers have installed at
the beginning of this year, a 200-meter high wind measuring mast on a tree-covered
hill not far from Kassel.
For the last 8 months this mast was taking measurements of wind speeds,
turbulence, as well as additional meteorological data. This is currently the Europe's tallest measuring mast for wind energy.
The
researchers still have plenty to learn about wind energy. They hope that measurements
from this mast could give wind energy developers crucial info about the correct
height to build turbines as well as answer different design issues in order to
ensure that turbines are designed with no greater mass than necessary, in order
to decrease general costs.
Wind
turbines need improvement in both efficiency as well as costs. With the help of
new promising technologies such as using this wind measuring mast wind energy
sector should become much more competitive with fossil fuels and become one of
the leaders in transition to renewable energy economy.
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