A windmill typically consists of the following parts:

• The blades – A windmill can consist of any number of blades from four to 20. Some special wind mills have higher number of blades.
• The tower – The tower holds the rotating blades high up in the air so that the winds rotate them.
• The shaft – The shaft is responsible for joining the blades with the tower and for the smooth rotation of blades.
• The generator – The generator is what generates electricity from the mechanical energy. It also stores power for future use.
• The base: The base of the windmill keeps it grounded to the earth.

What factors affect windmill design?

There are many factors that affect the design of a windmill. Let’s understand the major ones:

• Wind speed: The wind speed can be accurately measured with the help of an anemometer. It is not possible to determine the right kind of wind mill without knowing the accurate wind speed.

• Wind direction: For designing a windmill, it is also important to know the direction from which the wind flows most of the time.

• Change in wind speed: Apart from the constant speed of mind, it is required that you know how the wind changes its speed.

• Change of wind direction: The direction of wind will not be constant, so it important to note the way it changes its direction.

• Obstructions on the site: It is best t install a windmill at a place without many obstructions. Look out for existing and potential structures that may affect the performance of your windmill.

• Wind turbulence: The movement of wind is not always predictable. However, it is a good idea to understand the patter of wind turbulence in your site.

• Distance of wind activity from the ground: The height of the tower is dependent on the height at which the wind is active.

What are the possible designs of windmills?

Aerodynamics determines the design of a windmill based on the factors mentioned in the section above. The designs of windmills vary in the following measures:

• Number of blades
• Shape of the blades
• Height of the tower
• Kind of generators
• Distance of the installation spot from the ground
• Distance between the tower and the generator

The implementation of a windmill is not considered very cheap; however, it turns out a huge money saver in the long run when the cost of producing power becomes zero. See the full article…

Want Free Power? Build A Wind Generator

What about building your own domestic wind generator? It’s really easy and cheap with furnitures you can find in your grocery store.

So, instead of buying a commercial one, build it yourself: you’ll save thousands of dollars and you’ll have the satisfaction to get absolutely free energy offered by wind.

See more details in the “how to buy wind turbines” article.

Wind Energy Facts

Renewable wind energy produces little to no pollution, no harmful greenhouse gases and no methane or carbon dioxide-which contribute to global warming.  And of course the savings those homeowners can realize after their initial investment in renewable wind energy.

Moreover, did you know that in many states, it is possible to sell the excess electricity you generate from your renewable wind energy system back to the utilities companies?

Feel  free to read more details in the new article we inserted, which is about renewable wind energy.