As a result of global warming, many
countries are trying to cater their energy requirements using the green energy
sources. Solar energy and wind energy have gained much attention as a result of
that. Out of these two options, wind power is recognized as the most effective
method available to generate energy. In order to generate this energy, large
scale wind farms should be there in operation and they need to have efficient
turbines.
Have you ever wondered what makes these
turbines convert wind power into energy? They have in-built motors that are
made out of a special rare earth magnet called neodymium. Special properties
that exist in this rare earth magnet have forced people to use them in motors
that are used in wind turbines. China is responsible for about 90% of the
world’s neodymium requirements. This rare earth magnet is made as a result of
chemical bonds that take place in between other minerals and materials.
Therefore, they need to be extracted using special methods, which cause huge
environmental impacts. This has resulted in the production of inconsumable
underground water in some parts of China.
Neodymium can be considered as a powerful
and a strong magnet. Its weight is significantly low when compared to other
rare earth magnets available. Moreover, it is affordable and the manufacturers
can use them in their productions without any hesitation. These reasons have
forced people to use neodymium in the production of wind turbines since there
is no better option available.
The neodymium industry faced a huge problem
after 2010 along with the restrictions that Chinese government put on their
rare earth magnet exports. Xingjian and Siemens, who are two of the world’s
largest wind turbine manufacturers, have greatly been affected by these
restrictions. However, Enercon, which is a German manufacturer that make direct
drive turbines without neodymium have not been affected by this because they
follow a unique path. They don’t need to use permanent magnets because of their
unique mechanism, but the cost associated in the production process is
extremely high. Therefore, many wind turbine manufacturers, especially in
United States have request China to continue their regular supply of rare earth
magnets.
About
Stanford Magnets.
Based in California, Stanford Magnets has
been involved in the R&D and sales of licensed Rare-earth magnets, Neodymium
magnets and SmCo magnets, ceramic magnets, flexible magnets and magnetic
assemblies since the mid of 1980s. We supply all these types of magnets in a
wide range of shapes, sizes and grades.
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