Tower design

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Towers for wind turbines have been built in a variety of styles including steel lattice and cylindrical steel or concrete designs. The lattice style used to be common but has generally been replaced by cylindrical designs, predominantly of concrete but with steel used for some machines.

A tall tower will place the rotor in a region of high wind speed but will cost more. Thus tower height will normally be determined by the rotor diameter and by the need to avoid the layer of turbulent air close to the ground.

The bending frequency of the tower must also be taken into consideration. Excitation of this frequency could lead to structural damage in the same way as excitation of the natural frequency of a bridge can become dangerous.

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Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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