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The following article was published in our article directory on March 27, 2012.
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Things You Need to Consider When Buying a Wind Turbine

Article Category: Computers and Technology

Author Name: Jack Ryan

A wind turbine is a vital part of any wind power system. These turbines create electricity by using the kinetic energy of the wind to run an alternator. The turbine must be mounted on a free-standing tower of enough height to capture the wind and effectively generate power. In some areas with copious wind resources, however, the turbine may be mounted on top of a structure such as the roof of a house to generate power. The electricity created is then transmitted to the house wiring for direct use or to batteries to be stored for later use.

There are two types of wind turbine designs. Horizontal turbines are the traditional design that resembles an airplane propeller. In this design, the generator and the main rotor shaft are on top of the tower. Vertical turbines are a newer design in which the rotors are running vertically rather than horizontally, which allows the generator to be placed near the base of the tower. Vertical turbines are appropriate for use in areas with turbulent winds since the blades do not need to point into the wind.

What do you need to consider when buying a wind turbine?

Its swept area. This is the area, measured in square meters, that the turbine s blades sweep and governs how much power it can produce. The larger the swept area, the more electricity the turbine can generate. If you don t know the swept area, you can compute it by squaring the radius of the rotor and multiplying it by pi (3.14).

Predicted energy output. This will tell you how much power you can expect the turbine to generate based on a given average wind speed, i.e. 280 kWh at 8 mph, 550 kWh at 10 mph. You can get these figures from the manufacturer.

Average home electricity usage per month. You can estimate this by adding your total power usage for the past year and then dividing it by twelve. This will tell you the size of the turbine you need to get. You should keep in mind, however, that the bigger the energy output, the higher the cost of the turbine. This is why experts recommend that you take steps to make your home more energy-efficient and reduce the amount of power your house requires. This will bring down the cost of the wind turbine that you ll need. For example, for a turbine that produces 280 kWh at 8 mph as described above, you might need to spend as much as $25.000. On the other hand, a smaller turbine that produces only around 140 kWh at the same average speed might set you back only around $8,000.

Keep in mind also that the wind turbine is just one part of a wind energy system and you will still need to buy all the other components. Apart from the tower, these components include the wiring, the controller, batteries and an inverter for converting DC electricity to AC for home use or selling back to the utility grid.

Keywords: wind generator / wind generators / wind turbine/ Wind power generator/ wind power generators

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