Wind Power At Home

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For many people, the addition of a wind turbine generator to their home is an excellent idea. The biggest problem is the costs associated with purchasing a commercial wind turbine.

If you are like most people, then the choice of installing a wind turbine revolves around money. To save in your electric bill on a monthly basis is a very novel concept. But recovering the costs of purchasing a commercial unit in a year or less may be out of most people’s budgets. If you are pondering whether to build one yourself, then you will need to start by knowing how a wind turbine generator is made.

There are two major components to a wind turbine generator. The first of these is obvious, and that is the generator which produces power you can use in your home. The other component is the blades which are responsible for transforming the winds energy into a rotational force to drive the generator.

The blades, or propellers, are designed to capture the forward force of the wind and turn it into a rotational force. The more wind that the blades can catch, the more power the generator is capable of producing. In order to capture more wind though, there are two main factors that need to be taken into account. The first of these is the size of the blades themselves. The larger the blades, the more wind they can catch. The second factor is the shape of the blade. Some blade shapes are great for pushing wind, but not so good at collecting it. You cannot simply connect your electric fan blades to your wind turbine and hope for the best.

As far as the generator goes, you have two variations that are used today. The first is the common brush generator which is built in almost the same fashion as any household electric motor. The second is a pancake style generator which is most commonly referred to as an alternator. It is built without any brushes at all and is the most commonly used generator in homemade wind turbine setups.

In most cases, the alternator for a wind turbine generator is wired with 3 phases. This is done to reduce the back EMF the system receives when rotating. Too much back EMF can prevent your turbine from spinning at all in low wind conditions. The production of power is as a result of the rare neodymium earth magnets used in the generator’s construction.

A moving magnetic field creates an electrical current. As the blades rotate, they are connected to a disk which has permanent magnets attached to it. The wire-wound portion of the unit stands still and does not rotate at all. As each magnet passes over a winding coil, a charge is either sent or received through the coil depending on whether the North or South end of the magnet is facing the coil.

The multiple phases are then converted to direct current and combined into a single DC output which can then be connected to a power inverter and used inside the home.

There are of course many other things you will want to learn about producing your own power at home with a wind turbine generator, but these basics should get you started on the right path.

Understanding the basics before you build a wind turbine is very crucial.

How does the wind turbine work and how much electricity can be produced? This should be the first and most important thing you will need to learn before you build a wind turbine. Understanding the fundamental basics of wind turbine design and operation helps make the construction as well as maintenance of your wind generator system an easier task.

The location of your generator plays an important role with regards to the amount of power that it may be able to produce. If you live where there are a lot of trees, then you will have to make sure that the unit is mounted well above the tree tops. This is because for the wind turbine generator to function, it needs a steady wind. Too much turbulence can destroy your unit and not enough wind will reduce its ability to generate electricity.

You also do not want the generator itself to be placed too far from the home since you will loose electricity over greater distances in the form of heat. The closer you can place the unit to the home, the better delivery it is capable of.

Phase winding helps to increase the efficiency of the wind turbine. Whether you are following plans or designing from scratch, you have to take into account the windings and the phases of the winds. When you build a wind turbine, you want to be able to produce as much power as possible from the available wind. However, if you build your alternator with the wrong number of windings, bad winding locations or insufficient phases, the back EMF (electromagnetic force) generated by the rotation of the blade can actually stop the blades from spinning completely.

Have you ever rotated a high-torque electric motor like those for an RC car and felt resistance at certain points of the rotation? This is that back EMF you do not want. When winding your alternator for higher power outputs, the result is a greater back EMF which is only overcome by a stronger wind. Too much back EMF and the generator will not spin at all.

A good break-away system will save your generator in heavy winds. These systems are simple, but must be included in your build. The way that they work, is when the wind blows in gusts or is just too strong for the propellers, the whole unit should tilt out of the wind. This prevents the snapping of the blades and excessive wear and tear on the stator elements as well as bearings.

Blade design is crucial to getting the most out of your home-built system; the larger the surface area, the slower the wind that is needed to produce electricity. However, at the same time, blades which are too large are also too heavy and may not turn at all once mounted.

Take your time and remember that your patience will pay off in the long run. When you build a wind turbine, never rush through any part of the construction phase or you may live to regret it later on.

The wind turbine generator is an important part of your wind power system. It converts the energy generated from the rotating blades, known as mechanical energy, and turns it into electrical energy. It does not need electricity to do this which makes it different from other generators.

The requirements to keep a wind turbine generator may sometimes include a cooling system and a gearbox, depending on the type of turbine and the size. Sometimes you cannot use an ordinary switch because this would damage your generator, not to mention affect the power grid in your community.

There are two kinds of wind turbine generators: the synchronous and the asynchronous, then it has to have either a direct or indirect link to the grid connection. This enables your wind power to be adjusted so it matches with that of the power grid.

However, even if you have a lot of wind in your area, it does not always mean you can use it to power up all your electrical needs. Definitely, you will be able to reduce your monthly electrical consumption, maybe even by a huge margin. This would depend really on how much electricity or kilowatts you use up in a month.

Back-up system

However, there is a back-up system with wind turbines – you can store the excess power in a battery bank. You can even have more than one, however, battery banks should be installed by a qualified electrician because you will be using heavy-duty battery banks and a slight technical adjustment could make a huge difference. Also, maximizing the battery banks is the best way to make sure you have power when you need it.

Finally, you can make wind your best friend by converting it to energy that can drastically reduce your power bill forever. Wind power at home is becoming a great way to increase the market value of your home, and with very minimal cost to you. Your only outlay would be the structure to capture the wind power. After that, it’s an “easy breeze” for the rest of your life while living in that home.

Power Of Free Wind Energy

The fact is, you need to find a home or building that uses wind power so you can feel the immense power you can generate from a wind turbine. It’s inspirational to imagine such a simple structure being able to power up most, if not all, of your electrical needs. You don’t even have to be in a farm or have hectares of free space to enjoy wind power at home. There are now simple kits that you can manage to install on a small space in your garden or even on top of your roof.

Needless to say, your contribution in saving the environment is not negligible. It will live on long after you’re gone, and your children and their children will benefit. But it has to start with you. We can’t wait for the next generation to figure out how to live without fuel or an environment that is straining under the immense pressure we are putting it in.

Just look at the dailies and you will see the effects of our technology and decades of lack of concern for the environment. The news talks about how this year, 2010, could be the hottest ever experienced. Is this not a sign of Mother Earth telling us to do something? If everyone started to talk a more active role in lessening dependence on fossil fuels and other non-renewable energy sources, we could see our world getting time to recover from years of abuse.

Today, think about wind power at home. Think about our future and the future of mankind. We do have the responsibility and we should take it seriously.

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