Home wind turbines produce electricity from a free, renewable, clean source of energy, the wind. Using this alternative energy resource, wind turbines are becoming a popular method of producing free electricity for homeowners and business owners alike. The advantages and benefits of using wind turbines to generate electricity far outweigh the negatives. Many homeowners choose to build their own DIY wind turbines from kits that are available online. For those who are not so mechanically inclined, there are over 200 varieties of home wind turbines that are available online today.
In a typical residential application, electricity is provided simultaneously by the wind turbine and the local electrical utility. If the wind speeds are below cut-in speed (7-10 mph), there will be no output from the turbine, and all of the needed power is purchased from the utility. As wind speeds increase, turbine output increases, and the amount of power purchased from the utility is proportionately decreased. When the turbine produces more power than the home needs, the extra electricity is sold to the utility. All of this is done automatically. There are no batteries in a modern residential wind system. The two types of home wind turbines include Horizontal Axis Wind Turbines (HAWT's) and Vertical Axis Wind Turbines (VAWT's).
Horizontal axis wind turbines are by far the more prevalent type of wind turbine in use today. Windmills, for example, use a horizontal axis wind turbine to power themselves, as do most modern wind-farm turbines. Horizontal axis wind turbines work by facing propeller blades into the wind on a horizontal rotor shaft. The action of the wind causes the blades to spin, much like a pinwheel. The blades are fixed, and are connected to the rotor shaft, which rotates with them in the wind. The motion of this rotor shaft can then be used to do work of some kind or, in more modern applications, to generate electricity.
Vertical axis turbines work on very similar principles to horizontal axis wind turbines, but with several key distinctions. To begin with, the rotor shaft of a vertical wind turbine is arranged in a vertical fashion, with the wind-catching blades arranged around the rotor shaft. Vertical axis wind turbines do not need to be facing into the wind to operate. This is because the blades are arranged uniformly around the rotor shaft, and can catch the wind from any direction. The blades catch the wind, spinning the entire apparatus in a circular motion. The energy created by this kinetic effect can then be used to either do work or to create electrical energy.
Wind turbines are ideal for homeowners, communities and small businesses to use for on-site electrical power generation. The actual wind speed at your site will be influenced by the local topography and any nearby obstructions, such as trees or other buildings. Wind movement around buildings themselves is variable, so seeking expert advice can be a valuable option for the property owner. There are a range of different types of small wind turbine models, and thanks to their flexibility, these turbines can be installed in most locations. Your individual site specifics (such as location, wind speed and local landscape) will eventually determine the best turbine type and size for your application.
To learn more about home wind turbines, please visit WhatisWind.com.
by Vern Beatty Source: GoArticles.com
Wednesday, November 11, 2009
Sunday, October 11, 2009
Using Residential Wind Turbines
Residential Wind Turbines - Can You Use Them?
Residential wind turbines are a wonderful model to produce a cheaper source of free energy. Knowing what to search for and where to buy one is essential in getting you started. If you are looking for a suitable residential wind turbine kit, the good news is that there is lots of places where you can do so. This is not something you can just get at a hardware store. Instead, a little searching have to be done first. In fact, the internet is one of the best places to find and buy residential wind turbines kits.
These days, there are more and more options for those of you who want a small wind turbine out in the yard or on your roof. Residential wind power systems range from the standard to the somewhat bizarre, and come in sizes that can power several major appliances all the way up to your whole house and beyond. In the right conditions, residential wind power can be much more economical than other renewable energy options such as solar or geothermal.
Traditional propeller-type wind turbines remain the best options for residential settings outside of urban areas. They are efficient and time-tested, and the leading manufacturers of these turbines have been at it for a long time. Two of the leaders are Bergey Windpower and Southwest Windpower. Bergey makes several versions of its Excel turbine suitable for home wind power use. The Excel can be connected to the electrical grid and is big enough to power an entire home.
To learn more about residential wind turbines, please visit Residential Wind Turbines.
Residential wind turbines are a wonderful model to produce a cheaper source of free energy. Knowing what to search for and where to buy one is essential in getting you started. If you are looking for a suitable residential wind turbine kit, the good news is that there is lots of places where you can do so. This is not something you can just get at a hardware store. Instead, a little searching have to be done first. In fact, the internet is one of the best places to find and buy residential wind turbines kits.
These days, there are more and more options for those of you who want a small wind turbine out in the yard or on your roof. Residential wind power systems range from the standard to the somewhat bizarre, and come in sizes that can power several major appliances all the way up to your whole house and beyond. In the right conditions, residential wind power can be much more economical than other renewable energy options such as solar or geothermal.
Traditional propeller-type wind turbines remain the best options for residential settings outside of urban areas. They are efficient and time-tested, and the leading manufacturers of these turbines have been at it for a long time. Two of the leaders are Bergey Windpower and Southwest Windpower. Bergey makes several versions of its Excel turbine suitable for home wind power use. The Excel can be connected to the electrical grid and is big enough to power an entire home.
To learn more about residential wind turbines, please visit Residential Wind Turbines.
Using Small Wind Generators to Power Your Home
Can I use small wind generators to power my home?
We seem to think that using relatively small wind generators are a new way to gain energy but the use of small wind generators has been around for a very long time. People have been using wind energy for all kind of tasks and also to generate power. There are many reasons to take advantage of small wind generators on or around your home. There is more to wind power energy than merely cutting down on pollution.
When you build your own wind generator you are harnessing the full power of nature and turning it into electricity, electricity that is free. Wind power for homes works on exactly the same principle as the large industrial wind turbines that are sprouting up everywhere. The flow of air turns the wind turbine to create electricity. As the speed of the wind increases so the amount of power your DIY wind generator produces also increases.
Domestic wind turbines are sprouting up everywhere now mainly because people are beginning to see tangible benefits of installing them. Homes as well as businesses adopt this technology as an alternatively source of energy that is not only green, but everlasting. With so much uncertainty around us such as fluctuating energy costs and financial turmoil, it has become necessary now to look at renewable energy sources such as domestic wind turbines even for homes.
The advantages are obvious. Apart from helping businesses and families save on utility bills every month, the use of wind power reduces our reliance of fossil fuels. Wind energy is free whereas oil is not, so electricity generated from burning of fossil fuel is subjected to fluctuations of oil price. Furthermore, the burning of fossil fuel emits heat and carbon dioxide which contributes to global warming.
To learn more about small wind generators, please visit Small Wind Turbines.
We seem to think that using relatively small wind generators are a new way to gain energy but the use of small wind generators has been around for a very long time. People have been using wind energy for all kind of tasks and also to generate power. There are many reasons to take advantage of small wind generators on or around your home. There is more to wind power energy than merely cutting down on pollution.
When you build your own wind generator you are harnessing the full power of nature and turning it into electricity, electricity that is free. Wind power for homes works on exactly the same principle as the large industrial wind turbines that are sprouting up everywhere. The flow of air turns the wind turbine to create electricity. As the speed of the wind increases so the amount of power your DIY wind generator produces also increases.
Domestic wind turbines are sprouting up everywhere now mainly because people are beginning to see tangible benefits of installing them. Homes as well as businesses adopt this technology as an alternatively source of energy that is not only green, but everlasting. With so much uncertainty around us such as fluctuating energy costs and financial turmoil, it has become necessary now to look at renewable energy sources such as domestic wind turbines even for homes.
The advantages are obvious. Apart from helping businesses and families save on utility bills every month, the use of wind power reduces our reliance of fossil fuels. Wind energy is free whereas oil is not, so electricity generated from burning of fossil fuel is subjected to fluctuations of oil price. Furthermore, the burning of fossil fuel emits heat and carbon dioxide which contributes to global warming.
To learn more about small wind generators, please visit Small Wind Turbines.
Friday, October 9, 2009
What Material Do I Use to Create Wind Turbine Blades?
What Material Do I Use to Create Wind Turbine Blades?
One of the most difficult parts of making your own wind turbine is producing suitable blades. Wind turbine blades go through enormous stresses and must be made to quite tight tolerances if they are to balance and not send destructive vibrations through your wind turbine
Without blades, your wind turbine can't extract any power from the wind. There are many ways to make wind turbine blades, PVC pipe, foam, or fiberglass just to name a few. Each different material allows for different types of shapes to be built. PVC pipe is the least flexible material, and fiberglass has the most flexibility.
Making a wind powered generator from scrap materials is very rewarding and empowering. Most of the tools and materials that you will need can be found in your local hardware shop or junk pile. We highly recommend you search your local dump and/or junkyards for the materials required. If you live in a city, do a search on freecycle.org for salvaged parts.
PVC Wind Turbine Blades are becoming more and more common for homemade domestic wind turbines. The raw material, PVC pipe, is easy to find, relatively cheap, easy to work with, and performance is more than acceptable for a small basic wind turbine generator. PVC wind turbine blades can simply be bolted onto a Permanent Magnet Alternator or suitable Stepper Motor and you already have a basic wind turbine.
If you decide to use foam, you will be able to take advantage of a light, rigid material that can be shaped into many different profiles. Cut foam wind turbine blades will allow you to choose a specific airfoil shape as well as a planform of your blades to increase the efficiency of your turbine. To start creating your foam blades, you'll first need to know the diameter of your turbine disc and then the length of each blade.
To learn more about wind turbine blades, please visit Wind Turbine Blades.
One of the most difficult parts of making your own wind turbine is producing suitable blades. Wind turbine blades go through enormous stresses and must be made to quite tight tolerances if they are to balance and not send destructive vibrations through your wind turbine
Without blades, your wind turbine can't extract any power from the wind. There are many ways to make wind turbine blades, PVC pipe, foam, or fiberglass just to name a few. Each different material allows for different types of shapes to be built. PVC pipe is the least flexible material, and fiberglass has the most flexibility.
Making a wind powered generator from scrap materials is very rewarding and empowering. Most of the tools and materials that you will need can be found in your local hardware shop or junk pile. We highly recommend you search your local dump and/or junkyards for the materials required. If you live in a city, do a search on freecycle.org for salvaged parts.
PVC Wind Turbine Blades are becoming more and more common for homemade domestic wind turbines. The raw material, PVC pipe, is easy to find, relatively cheap, easy to work with, and performance is more than acceptable for a small basic wind turbine generator. PVC wind turbine blades can simply be bolted onto a Permanent Magnet Alternator or suitable Stepper Motor and you already have a basic wind turbine.
If you decide to use foam, you will be able to take advantage of a light, rigid material that can be shaped into many different profiles. Cut foam wind turbine blades will allow you to choose a specific airfoil shape as well as a planform of your blades to increase the efficiency of your turbine. To start creating your foam blades, you'll first need to know the diameter of your turbine disc and then the length of each blade.
To learn more about wind turbine blades, please visit Wind Turbine Blades.
Wednesday, October 7, 2009
Wind Turbine Designs for Domestic Use
Wind Turbine Designs for Domestic Use
Wind turbines generate electricity, free, clean electricity which you can use to power specific equipment, your home or business. This electricity is yours to use as you wish. In many countries the local electricity provider will buy the electricity you produce. You can sell all of your electricity or just the surplus that you do not need to power your own installation. With the right size, grid connected wind turbine you can ensure that your total power needs are catered for and you can sell the power that you generate but don't need, at night for example, to the local utility.
All wind systems consist of a wind turbine, a tower, wiring, controller, inverter, and batteries. By investing in a small wind system, you can reduce your exposure to future fuel shortages and price increases and reduce pollution. Deciding whether to purchase a wind system, however, can be complicated; there are many factors to consider. But if you have the right set of circumstances, we can help you design a wind energy system that can provide you with many years of cost-effective, clean, and reliable electricity.
Most wind turbines require an average annual wind speed of 5 meters per second or more. If you are not sure of the local wind speed try searching the internet for local weather statistics or ask at your local airport or flying club where this information will be on record.
According to many renewable energy experts, a stand-alone "hybrid" system that combines wind and photovoltaic (PV) technologies offers several advantages over either single system. In much of the United States, wind speeds are low in the summer when the sun shines brightest and longest. The wind is strong in the winter when there is less sunlight available. Because the peak operating times for wind and PV occur at different times of the day and year, hybrid systems are more likely to produce power when you need it.
To learn more about wind turbine design, please visit Wind Turbine Design.
Wind turbines generate electricity, free, clean electricity which you can use to power specific equipment, your home or business. This electricity is yours to use as you wish. In many countries the local electricity provider will buy the electricity you produce. You can sell all of your electricity or just the surplus that you do not need to power your own installation. With the right size, grid connected wind turbine you can ensure that your total power needs are catered for and you can sell the power that you generate but don't need, at night for example, to the local utility.
All wind systems consist of a wind turbine, a tower, wiring, controller, inverter, and batteries. By investing in a small wind system, you can reduce your exposure to future fuel shortages and price increases and reduce pollution. Deciding whether to purchase a wind system, however, can be complicated; there are many factors to consider. But if you have the right set of circumstances, we can help you design a wind energy system that can provide you with many years of cost-effective, clean, and reliable electricity.
Most wind turbines require an average annual wind speed of 5 meters per second or more. If you are not sure of the local wind speed try searching the internet for local weather statistics or ask at your local airport or flying club where this information will be on record.
According to many renewable energy experts, a stand-alone "hybrid" system that combines wind and photovoltaic (PV) technologies offers several advantages over either single system. In much of the United States, wind speeds are low in the summer when the sun shines brightest and longest. The wind is strong in the winter when there is less sunlight available. Because the peak operating times for wind and PV occur at different times of the day and year, hybrid systems are more likely to produce power when you need it.
To learn more about wind turbine design, please visit Wind Turbine Design.
Friday, May 2, 2008
Wind Chimes-an Introduction
Wind chimes are also known as Aeolian chimes. They are hollow or solid metal, plastic or wooden tubes which are usually hung on the exterior of a building. When played by the wind, the chimes will either strike each other or any metal, wood or rubber balls which may be hung in the center. With each tube a different length, the chimes will give out a random musical mix of jangle, which can be bright or solemn in tone.
Chimes may be used to observe changes in wind directions. For instance, if a chime is positioned on the north side of the house only a north wind will move it. Wind chimes come in every size and shape. The tiniest can be worn as earrings, and another mini model fits in the palm of the hand and has three pipes. Large wind chimes are often used in larger homes and built-up areas for aesthetic purposes. Wind chimes of this sort are normally used to determine wind directions. If a person wanted to monitor wind coming from a certain direction, a large wind chime would be placed in that sector. Large wind chimes are more sensitive in picking up changes in wind currents than small ones and the slightest gust of wind will trigger off the wind chimes and give out the alert of wind changes. Some wind chimes are so designed and created solely to make music. Precision tuned, the tubes that hang on the musical wind chimes are specifically keyed to produce a specific note.
If considering purchasing a wind chime, it is true that not all wind chimes are created equal. Be sure to listen to the style of chime you are getting before you buy. Enjoy the sounds of petite, medium, large, and extra large chimes. Each size creates a distinct sound and atmosphere. There are many types of wind chimes. Some of the specific varieties include bamboo wind chimes and unique wind chimes.
For more information about wind chimes, or other wind-related topics, please visit WhatisWind.com.
Chimes may be used to observe changes in wind directions. For instance, if a chime is positioned on the north side of the house only a north wind will move it. Wind chimes come in every size and shape. The tiniest can be worn as earrings, and another mini model fits in the palm of the hand and has three pipes. Large wind chimes are often used in larger homes and built-up areas for aesthetic purposes. Wind chimes of this sort are normally used to determine wind directions. If a person wanted to monitor wind coming from a certain direction, a large wind chime would be placed in that sector. Large wind chimes are more sensitive in picking up changes in wind currents than small ones and the slightest gust of wind will trigger off the wind chimes and give out the alert of wind changes. Some wind chimes are so designed and created solely to make music. Precision tuned, the tubes that hang on the musical wind chimes are specifically keyed to produce a specific note.
If considering purchasing a wind chime, it is true that not all wind chimes are created equal. Be sure to listen to the style of chime you are getting before you buy. Enjoy the sounds of petite, medium, large, and extra large chimes. Each size creates a distinct sound and atmosphere. There are many types of wind chimes. Some of the specific varieties include bamboo wind chimes and unique wind chimes.
For more information about wind chimes, or other wind-related topics, please visit WhatisWind.com.
Sunday, April 27, 2008
Wind Farms-the Modern Era
Modern wind farms may have power generation capacities on the order of hundreds of megawatts, and are generally are connected to the high voltage transmission system. Therefore, modern wind farms are considered power plants with responsibilities for control, stability, and power balance. While wind farm production cannot exceed the power given by the instantaneous wind available, regulating the power output is an important aspect towards balancing and stabilizing the local power system.
Most of the other technical issues with wind farms are associated with the close spacing of multiple turbines. The close spacing implies that energy extraction by wind turbines upwind will reduce the wind speed and increase the turbulence around adjacent turbines. This may cause reduced efficiency and higher loads on the downwind turbines. Another technical issue for large wind farms is the electrical grid connection and the integration into the local power system. Large wind farms are very visible, especially at land and in coastal areas, and this can play an important role in the wind farm planning process. Because of this, wind farm sites can be chosen with less than optimal wind conditions. Good wind conditions are essential for the success of any wind project, and methods for accurately predicting wind climates at specific sites is constantly being improved.
For more information on wind farms, and other wind-related topics, please visit WhatisWind.com.
Most of the other technical issues with wind farms are associated with the close spacing of multiple turbines. The close spacing implies that energy extraction by wind turbines upwind will reduce the wind speed and increase the turbulence around adjacent turbines. This may cause reduced efficiency and higher loads on the downwind turbines. Another technical issue for large wind farms is the electrical grid connection and the integration into the local power system. Large wind farms are very visible, especially at land and in coastal areas, and this can play an important role in the wind farm planning process. Because of this, wind farm sites can be chosen with less than optimal wind conditions. Good wind conditions are essential for the success of any wind project, and methods for accurately predicting wind climates at specific sites is constantly being improved.
For more information on wind farms, and other wind-related topics, please visit WhatisWind.com.
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