Wind Turbines Power

How do Wind Turbines Work

Wind turbines convert kinetic energy in wind to mechanical energy that can be utilized for many purposes. Read on to know how wind turbines work. Click here to learn how to build your own.

The use of wind machines can be traced back to as early as 200 B.C. The basic working principle of those wind machines was similar to the wind turbines that are used at present. Wind turbines are rotating machines that convert the kinetic energy in wind to mechanical energy (or potential energy). The machines are referred to as windmills, if the mechanical energy produced is used directly in operating machines, such as pumps. If the energy is converted into electricity, then the machines are called wind generators or aerogenerators.

How do Wind Turbines Work

There are two types of wind turbines, classified based on the axis in which the turbine rotates viz. horizontal-axis wind turbines (HAWT) and vertical-axis wind turbines (VAWT). Among these two, turbines that rotate on horizontal axis are more popularly used than vertical-axis wind turbines. Both the wind turbines work in the same fashion. Let’s take a look at the machinery and working of wind turbines.

When we see a wind turbine, the most significant component is the tower that holds the blades. The efficiency of wind turbines to some extent depends on the height of the tower. In other words, the tower height should be such that the blades can make use of the available wind energy to maximum amount. Following are the machinery of wind turbines:

• Blades or rotor (either two or three)
• Brake (to stop turbine rotation in emergencies)
• Anemometer (for measuring wind speed)
• Controller (regulates the turbine)
• Gear box (to start the machine)
• Generator (for producing electricity)
• High-speed and low-speed shaft (to drive generator)
• Nacelle (houses the turbine and is placed on top of the tower)
• Pitch (for controlling the direction of blades)
• Tower (houses the rotor)
• Wind direction (upwind turbine)
• Yaw drive (required for upwind turbine and is used to regulate rotor direction)
• Yaw motor (powers the yaw drive)
• Wind vane (to measure wind direction)

The working mechanism of wind turbines is very simple. In a wind turbine, the blades are positioned at 45-degree angle, so as to capture maximum kinetic energy from wind. As the broad surface of the blade faces the wind, it creates a positive pressure on the front when the wind hits the blade. This pressure creates a suction behind the blade, which turns the rotor. When wind accelerates and reaches a certain speed (four meters per second), the blade gradually rotates and produces mechanical energy.

The energy produced is then converted into electricity via the generators and stored in batteries for further use. The amount of energy production depends on the rotational speed of turbine, which in turn is directly proportional to the speed of wind. The turbine speed can even reach to about 250 kilometers per hour. However, at very high speeds, the rotation of the blade is ceased with the help of brakes; otherwise, there are chances that strong winds may rip off the turbine blades.

As we have discussed, wind turbines make use of renewable energy source to produce electricity without the emission of greenhouse gases. One can install smaller wind turbines at home to supply power for air conditioner (AC) or inverter. In recent times, wind turbines are gaining popularity to combat global warming and carbon dioxide production in the atmosphere, yet providing energy to meet our lavish lifestyles.

By Ningthoujam Sandhyarani Published: 3/12/2009

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Solar And Wind Power For Residential Homes

It is now fully possible to get solar and wind power for residential homes. Costs are coming down, and more and more people are jumping into the benefits of solar and wind power for residential homes. As you read this article, you will discover more about solar power and wind power for residential homes.

Many people are trying the ‘do it yourself’ method

As you read this article about solar and wind power, you will discover more about:
* What Is Solar And Wind Power?
* Why Use Solar And Wind Power To Power Your Home?
* How To Get Solar And Wind Power For Your Home?
* Tips To Getting Solar And Wind Power For Residential Homes!

* What Is Solar And Wind Power?
It may seem like a basic question, but it is good to understand the principle fully. Solar energy is basically energy from light. So the parts to residential solar energy systems take the light photons, and convert them into electric.

This applies with wind power also; however, there is a marked difference with how they operate. Basically the wind power generators have turbines which turn with the power of the wind, with a generator, this produces electric which when converted to a suitable voltage and amps, will provide your home with electric, and all for free!

It is now fully possible to get solar and wind power for residential homes. Costs are coming down, and more and more people are jumping into the benefits of solar and wind power for residential homes. As you read this article, you will discover more about solar power and wind power for residential homes.

Many people are trying the ‘do it yourself’ method

As you read this article about solar and wind power, you will discover more about:
* What Is Solar And Wind Power?
* Why Use Solar And Wind Power To Power Your Home?
* How To Get Solar And Wind Power For Your Home?
* Tips To Getting Solar And Wind Power For Residential Homes!

* What Is Solar And Wind Power?
It may seem like a basic question, but it is good to understand the principle fully. Solar energy is basically energy from light. So the parts to residential solar energy systems take the light photons, and convert them into electric.

This applies with wind power also; however, there is a marked difference with how they operate. Basically the wind power generators have turbines which turn with the power of the wind, with a generator, this produces electric which when converted to a suitable voltage and amps, will provide your home with electric, and all for free!
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The difference between solar and wind power, is that the Sun’s light also provides heat in the form of ultraviolet rays. This can also be used to heat water, without the need to generate electric.

* Why Use Solar And Wind Power To Power Your Home?
Because solar energy is solar energy, the source is from our Sun. This makes it free energy! As this is fantastic, considering that if we could collect all the light emitted onto Earth in 1 hour, we would have enough energy for humanities entire needs for a year!

That is big, and when you do your bit, and utilize solar power or wind power, you ultimately help in creating a better world, with free energy! Wind power is caused from the tides, so again we have a lot of potential to make use of these sources of energy.

* How To Get Solar And Wind Power For Your Home?
There are many companies springing up to help you get solar and wind power for your home. They can help you find the right equipment, and even may be able to give you advice about selling your excess energy!

* Tips To Getting Solar And Wind Power For Residential Homes!
Solar and wind power for residential homes is not cheap. The equipment can be expensive, and take years to recoup your investment. Luckily there are many grants that can help you get solar power for the home or wind power for the home at a much better price, than if you had to pay for it all yourself.

Did you know that you can resell your excess energy to the power companies? Not all will buy your excess energy, but there are a few companies who do. For example, in the UK nPower buys green energy.

By: Kozen Huseyin

Discover more about solar power for the home, and solar and wind power for residential homes. Visit www.homesolarenergysystems.info/

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Even though alternative energy such as wind power is an excellent way to generate electricity in your home, saving you money and helping the environment, it is still very expensive to have professionally installed in your own home. A professional wind power system for your own home will cost you thousands of dollars. Learn how to build your own wind turbine for less than $300 that will give you just as good electricity producing, power bill-reducing results.

The first step in building your own wind turbine is determining whereabouts in your property it will go. Whilst mounting the turbine on your roof would be the obvious choice as this area receives the most wind, due to planning restrictions and the risk of lightning striking through the metal, you probably won’t be able to. Also, having one on top of your house would probably be rather unsightly as well. This means that you are going to have to find somewhere in your yard that receives a decent amount of wind every day.

Once you have chosen your spot, the next step is to download a wind turbine blueprint kit off the Internet. Although you can rush out and purchase the parts such as the propellers and wiring, without a blueprint kit you will probably make a mistake and have to start all over again. Also, you will save more money in the long run by paying for downloading a kit in the first place. The diagrams and instructions will show you where to purchase the necessary components for the lowest possible price. You can easily build a complete wind turbine system for under $300, including the cost of the instruction/blueprint kit. That’s a saving of thousands of dollars when compared to what you would pay a wind energy technician to do the exact same job as you.

Perhaps the best part about using a blueprint kit to build your own wind turbine is the fact that you will learn how to wire your system in such a way that you can sell back the excess power produced to your utility company. Instead of you paying them money, they will be sending you checks. Using this method, a number of people I know (myself included) have installed more than one turbine, allowing us to either store excess electricity in a battery system, or feed it back to the utility company for a tidy profit. It’s kinda like running a clean, green, efficient power plant in your own back yard!

Author: Jeff A. Palmer

Click here to learn more about wind generated electricity in your own home, including what the best, safest and most efficient wind turbine blueprint system is, how much you will need to spend, how much power and electricity you will save and how to build your own wind turbine.

Jeff A. Palmer has worked in the alternative energy sector for a number of years. Using a combination of wind and solar power he has managed to completely eliminate his electricity bill. Using his advice, you can do the same thing as well.

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Home wind turbine technology has come a long way in recent years. Home wind turbines have been installed in almost every state as well as Canada and Mexico. Most homes with a single wind turbine will see a decrease in electric utility costs from 20 to 80 percent depending on the type of system installed and the area of the country. Homes located in windy locales and homes that do not have central air conditioning will see the greatest savings in utility costs following the installation of a home wind turbine system.

Home wind turbine operation generally requires sustained wind speeds of at least 10 mph. Excess power generated by the wind turbine is not stored so, if wind speeds are not sufficient to generate power, electricity must be purchased from the local utility. However, if the turbine generates more power than needed, the excess electricity is automatically sold to the local utility. Which means that not only will you save money on power bills, but actually make money from the electricity company.

The use of a home wind turbine is best suited to suburban and rural homes since it is installed atop an high tower. The height of the tower depends on whether there are any nearby obstacles such as tall buildings or trees. A turbine positioned well above objects on the ground will be able to take advantage of maximum wind velocity, thereby generating more power than a turbine closer to the ground. Despite the reliance on high wind speeds to operate, wind turbines operate quietly with virtually no maintenance.

A variety of systems are available on the market. Turbines with smaller rotors and blades can be installed on short towers; however, these systems will not generate as much power. A full sized system requires a larger, taller tower, but will generate the maximum benefit in energy savings. The price, with installation, can range from $5,000 upwards of $20,000. Most systems come with a 5 to 10 year warranty and consumers can expect a new system to last up to 20 years.

The other option is to find a DIY project for you r home wind turbine – this will not only save on set up costs, but will repay it’s installation costs even faster.

Author: Ray McCaskey

Home Wind Turbine – Start saving on your power bills today.

Home Wind Turbines are simple, affordable and anyone can do it.

Article Source: http://EzineArticles.com/?expert=Ray_McCaskey

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Wind energy as a means of producing electricity has become one of the most popular methods of going green. It’s not just wind farms that are generating power from the wind, however. Home wind turbines are showing up in the most unlikely places.

A teenage boy in Africa built a home wind turbine that supplies his family’s electricity needs for their small home. Built entirely from scrap parts, this ingenious young man is truly an inspiration. That is living off the grid in it’s purest form.

In Hollywood, celebrities are also getting in on the act. The star of the popular Tonight show, Jay Leno has installed a wind turbine on his famous garage. Previously "Jay’s garage" was known mainly for the collection of antique cars kept there by Leno. Now it is gaining fame for wind power as well.

Ed Begley,Jr., a Hollywood veteran best remembered for "St. Elsewhere", is a wind power believer also. Begley not only has a home wind turbine, but has owned part interest in a California wind farm for several years.

From Africa to Hollywood, interest in home wind turbines is at an all time high. Oil markets controlled by cartels and foreign interests continue to cause major concerns worldwide. As oil prices get higher, electricity rates follow suit. But recent trends have shown that while crude oil prices will rise and fall, electricity rates tend to remain at high levels.

Renewable energy sources such as wind and solar power cannot be controlled or dominated by governments or corporations. Unlike oil, energy from the sun and wind are not in short supply. As long as the wind blows and the sun shines, energy can be readily obtained from these natural sources.

Wind energy technology has made tremendous strides in the past few decades. It is now easier than ever before to produce electricity from wind power. Windmills have come of age and are now in the forefront of green energy production.

Today it is a simple matter for homeowners worldwide to take advantage of the free and renewable energy supplied by the wind. Home wind turbines are no longer a dream, but a viable option for anyone considering going green. After all, if a teenage boy in Africa using scrap parts can do it, can’t you?

Author: Guy Williams

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