Environment Sustainability Development » homemade wind turbine

Different Wind Turbine Blade Designs

Save Environment — Sat, 19 Dec 2009 13:59:12 +0000

Wind turbines are one of the oldest devices in existence used for generating power. Although the basic idea behind wind generators has lasted, wind turbine blades in particular have changed drastically over the years, from the easily broken windmill blades of yore to the sleek blades of today. The basic benefit of modern blade design is that it allows wind turbines to generate more power from less wind now than ever before, which in turn makes it possible to use smaller and quieter turbines.

Early wind turbine blades were basically nothing more than large mats made from reeds. Their main weak point was a lack of durability. The short lifespan of this kind of blade led inventors to look for other options.

Reed blades were eventually discarded in favor of lighter and more durable cloth sails. Along with an improved vertical axis style design, many early windmills utilized this type of blade in order to use wind power for grain processing purposes.

The next phase in the evolution of wind turbines came with the introduction of wood blades and horizontal axis blade configurations. This development reflected those seen in the world of aeronautics, as improving rotors often shared similar characteristics. Wooden blades were stronger yet lighter than previous models, and therefore they could spin faster and provide greater power to the connected machinery.

Electricity was produced from wind turbines for the first time thanks to these designs. It wasn’t long before large scale wind turbines would be used to for commercial purposes.

At this time, the difference between horizontal axis turbine blades and vertical axis ones became even more distinct. For the most part, the shape and materials of the blades as well as the number of blades used per rotor would be the main area of variation to come for horizontal axis blades.

3-blade designs came to be the standard for horizontal axis wind turbines, as they usually provide a good balance of stability and rotor speed. In most modern turbines, composite blades are used, which are extremely strong and flexible as well as being lightweight, making them ideal for both residential and commercial uses. Composite blades allow wind turbines to spin faster and produce more power as well as pick up low-speed winds, making them immeasurably more efficient.

For vertical axis wind turbines too, there are many new designs available currently, which are suitable for a wide variety of purposes. These types of wind turbines tend to take advantage of either wind drag or wind lift in ingenious ways in order to provide significant amounts of rotation.

Vertical axis turbines are able to harness the power of the wind regardless of its direction. Horizontal axis turbines usually aren’t able to provide quite the same consistency of production. Residential users will find vertical axis turbines especially appealing, as they generally don’t require a tower or an open landscape in order to work their best.

For information about the advantages and disadvantages of wind power, go to Advantages and Disadvantages of Wind Power.

For the best guide I have found for building your own wind turbines with step by step videos, go to Best DIY Solar and Wind Guides.

For another guide to building a diy wind turbine, visit Homemade Wind Turbine.

?Wind Power Generation

Fri, 18 Dec 2009 02:30:02 +0000

Wind power generation in the United States has grown by nearly 45 percent in 2007. Rising public awareness of environmental issues and the escalating costs of energy production have significantly contributed to aggressive energy policies around the world as nations clamor for policies that engage alternative energy sources. Wind power generation is a clean and cost-efficient energy source that is widely preferred over fossil fuel based energy sources. In recent years, residential use of wind power generation has exploded exponentially in attempts to save on utility bills, generate profits, and do their part to help the environment.

The concept of wind power generation is not terribly difficult to understand. Basically, wind turbines, which are strategically located, collect and convert wind energy into electricity. The wind turbines are connected to electrical grids. Individual turbines can convert energy in small localities, and large scale wind farms can convert energy into larger scale electric grids.

On a small scale, wind power generation is extremely cost efficient and can even turn a profit for owners with wind turbines in prime locations. On a larger scale, however, cost efficiency is greatest when wind power generation is used as a supplementary measure. The purchase of wind power generation kits is still highly practical for home or small business use.

Wind power generation for small localities is best employed with purchased electricity as a back-up. Wind energy is the main source of energy to power an area but is supplemented with the purchased energy when wind speed is too low to effectively produce electricity. Conversely, wind energy can be generated to excess and the excess amount of energy will automatically be bought by local utility companies. This is how wind power generation not only saves in utility bills, but puts money directly in the pockets of its owners.

Wind energy is highly renewable. The general consensus is that this form of energy is much cleaner than other alternative energy sources, especially energy sources that are fossil fuel derived. However, there is some debate concerning the placement of wind turbines and wind farms. Because the best sites for wind power generation tend to be in scenic mountain areas and coastal areas, many claim that the aesthetics of wind turbines and wind farms are unnatural and devalue the landscape.

Nonetheless, wind power generation is being steadily employed. The cost-efficiency and environmental friendly nature of the energy source are amazing advantages and should not be ignored. Although the full direct and indirect impact of wind power generation may never be known, wind energy is a practical response to today’s energy problems.

Homemade Wind Turbine

Save Environment — Wed, 16 Dec 2009 05:46:50 +0000

Along with solar power, wind power deserves attention as a viable source of power which offers the extra benefit of creating no pollution. The wind power systems of today are small and quiet in addition to being very efficient. Anywhere that has a breeze can be turned into a power generating area thanks to wind turbines.

It’s even possible to build your own wind turbine. This is a much more affordable option than buying a pre-made wind turbine. Once you’ve got the right parts and a design, you can make a wind turbine in just a couple of days. Do you want to know the price range of the different types of commercial wind turbines? You can visit wind turbines cost for futher information.

Really, all you need if you’d like to build a wind turbine are some basic technical skills and tools.

The parts necessary are nothing unusual. You may even have some in your possession already. Apart from basics like bolts and wire, all wind turbines need rotor blades, a generator, and sheet metal to mount the unit on.

The blades and rotor assembly form the centerpiece of the turbine. This is the part of the turbine that collects the wind and rotates. If you have some PVC pipe, it’s possible to build the blades yourself, using any of the plans available from different sources. Even with moderate mechanical skills, it’s not too hard to shape the rotor blades.

An appropriate generator is the next step. There are many different sorts of generators available; in many cases, appliances with motors can be used for this purpose. Motors that can produce electricity when rotated are appropriate for this purpose.

Once you have all of these parts, all that’s left is to mount the rotor and blades on one end of a platform and join the shaft from the rotor to the shaft on the generator. Try to set up the wind turbine in a spot where it will receive as much wind as possible in order to produce the optimum amount of power.

For the greatest guide to building your own homemade wind turbine, you can check out Earth4Enegry Review.

Here’s another guide to building a diy solar panel How to Build a Wind Turbine.

?GE Wind Energy Products Are Found All Over The World

Sat, 28 Nov 2009 02:30:03 +0000

When it comes to recognizable corporate names, it’s hard to top General Electric. Known for everything from its ownership of a major television network to its creation of small electronic devices, this company is a household name the world over. One area of its operations might not be as well known as some of the others. GE wind energy is, however, one of the leaders in this alternative energy industry.
GE wind energy products have been available for more than 20 years. The company, in fact, specializes in the creation of wind turbines for the collection of kinetic energy. To date, it has more than 8,400 working turbine installations found throughout the world.
GE wind energy is known as a pioneer of technology in the field. Its products are noted for:
• Durability – GE’s wind turbines are designed for longevity. They are noted for reliable performance that offers variable speed control and independent blade pitch.
• Grid support – GE wind energy creates turbines that are meant to provide cost-effective operation for grid support. The company’s WindVAR electronics helps improve transmission efficiency and enables turbines to remain online and supply reactive power to the grid through disturbances in the system.
• International operations – To supply clients all over the world, GE wind energy has operations located in countries all over the globe. Some of its factories are found in the United States, Germany, Canada, China and Spain.
• High capacity turbines – GE wind energy creates turbines that are designed for high capacity systems. It offers a 1.5 MW system, a 2.5 MW system and a 3.6 MW system. GE’s 1.5 series, in fact, is considered one of the most widely used turbines of its classification in the entire world. It has more than 5,000 units in operation at present.
GE’s involvement in wind energy is something that many people don’t realize, but it does show a few important things about this technology. The fact that this major player has taken a serious interest in alternative energy shows that it is:
• Viable – GE lends itself to a growing list of corporate names that put an emphasis on greener technologies. The viability of wind turbine technology is clear or major players would not be involved in production.
• Of continued interest – GE’s longevity in this field shows that wind energy is not a fleeting fancy. With more than two decades in, GE’s history shows that turbine power has been of interest on the global market and continues to be so.
GE wind energy products are found the world over. As this technology gains even more interest, it is likely GE will continue to help lead the charge.

Pluses and Minuses of Wind Power

Save Environment — Sat, 14 Nov 2009 14:05:36 +0000

Residential wind turbines have really improved over the last decade. New materials and technological advancements have enabled newer designs for residential wind turbines, and these in turn generate even more energy from less wind than ever before. The sheer variety of sizes and styles of residential wind turbines now available means that interested parties are certain to find a unit to meet their needs.

Advantages

Endless energy

Unlike some energy sources, we’ll never hit “peak” wind. As long as we do what’s necessary to harness it, the wind will keep on being a source of energy. Fossil fuels can’t make that claim. Non-renewable energy sources such as oil, coal and natural gas are just that – non-renewable. Once they’ve run out, there won’t be any choice but to switch to other sources of energy. As fossil fuels become more and more scarce, they’ll only get more and more expensive, wind energy will only become an even more attractive option.

Energy without the bills

No matter how much wind energy you use, the price remains the same: After the one-time cost of installing a wind generator, you have permanent, free power.00. Residential wind turbines can enable you to provide all of your own power, so won’t ever have to pay for electricity again. Clean energy.

Wind energy is totally free of pollution

The same can’t be said of fossil fuels, which represent a huge threat to the environment in current usage quantities. Switching to wind power is perhaps the best way to reduce your carbon footprint. Forget about foreign oil.

Many Americans are looking for ways to cut dependence on foreign oil

Electricity produced by wind power directly replaces energy that is derived from foreign oil, and therefore it can make a big difference in terms of lowering dependence. Energy 24/7.

Wind energy can be produced at any time of day or night and in any weather, which isn’t the case with solar power

Solar panels, meanwhile, only generate electricity when the sun is shining. Therefore, with solar panels, it’s likely that you’ll still be required to pay for electricity from a power company. These limitations don’t apply to wind energy. No home orientation problems.

Solar power systems are limited by the fact that they require significant sun exposure in order to operate at peak efficiency

For homes that have too much shade, or lack sufficient southern exposure on the roof, this can be a problem. A wind turbine will produce power regardless of any of these factors. Wind turbines are also more efficient in terms of use of space than solar panels are. Drawbacks.

Installation cost

Even though the ongoing costs of wind energy are miniscule, some potential users are intimidated by the startup costs

This cost is more than mitigated by the savings that come from switching to wind power over the long term. If you’ve got the technical savvy, some basic tools, and enough time, you can even put together your own wind generator, which will make the entire process that much more economical. To read more about how to do it yourself check out. Wind Generator Plans Height needed.

If you’re using a larger type of wind generator, you’ll need to be sure that it’s set up high enough to experience strong and consistent wind

Depending on the nearby tree line and buildings, this can be quite high. Wind turbine users who are located in areas with many tall buildings or trees often need to mount the generators on towers. If so, it’s often necessary to obtain HOA approvals or permits, and this can lead to some further up-front cost. But, once again, constructing. home made wind turbine will help lower the cost. Wind needed

Wind generators work best in areas with consistent wind

Especially windy areas are ideal. This means that wind energy can be produced most effectively in locations with relatively few buildings or trees. Even though you can get around these issues by using a tower, it is most efficient to generate wind energy in areas without these problems. Plans such as those referenced above can show you you. how to build a wind turbine These characteristics make wind power different from other kinds of power.

An increasing number of homeowners are finding out that the advantages far outweigh the disadvantages. Even compared to other renewable energy sources, wind power has a variety of distinct strong points. The benefits of wind power in some ways actually correspond to the disadvantages of solar (and vice versa). Solar and wind power do share the common problem of being costly to start up. Perhaps the most effective way to deal with this problem, if you find the expense is discouraging you from moving forward, is to build a wind generator yourself. [inserttext].

?The Advantages Of Wind Energy Are Becoming Well Known

Sun, 11 Oct 2009 01:30:03 +0000

Only a few years ago it seemed like the concept of wind power was a bit of a fairy tale. While it had been proven that wind energy could be beneficial for use, its widespread application didn’t seem feasible. Today, however, all of that has changed. Thanks to a better understanding of the advantages of wind energy, its use and production is on the rise in a very big way.
The advantages of wind energy are known and put into practice in countries all over the world. From India and China to America and Denmark, the power of the wind is used to heat and cool homes, keep lights running and more. The increase in wind energy use has been prevalent in the last few years. In America, for example, the capacity for production of wind power grew by 45 percent in the year 2007 alone. European countries, such as Spain and Germany, rely on wind power to augment to their electrical grids to the tune of a few percent of total power production. Denmark, however, boasts the highest use at 20 percent of its total electrical production.
So, how are the advantages of wind energy fueling the increased movement toward this form of alternative power? A careful examination of the benefits of wind’s use will make this clear. The pros of using wind power include:
• Cost effectiveness – As fossil fuels continue to be more costly, many power producers are looking for viable alternatives. Of all of the choices out there, wind power is the most economical of the renewable energy sources. This is good news for power companies that need to boost their capacity and want to do so in a greener, yet efficient way.
• The green factor – This is one of the biggest advantages of wind energy. The reality is that wind is a renewable resource. It does not go away – at least for long. Plus, it is a clean source of energy. Wind power does not release emissions into the atmosphere. It does not produce greenhouse gases. And, it doesn’t leave a negative footprint behind.
• The capacity – Although it does take fairly sizeable wind farms to produce energy for the power grid, the reality is the capacity turbines can produce is rather impressive. In America, for example, one percent of the total energy production today now comes from wind power.
The advantages of wind energy are making this alternative power source stand out from the pack. This cleaner, cost-effective alternative to fossil fuels has been making big headway in recent years for very good reasons.

New Home Wind Generator Developments

Save Environment — Tue, 06 Oct 2009 05:13:27 +0000

For decades now, wind power technology has been improving. In the past ten years or so, it has seen vast improvements and has been used more and more for home generation of electricity. Since they produce more power than ever while being smaller and quieter, modern wind generators can be a great source of alternative energy for many homeowners. There are now even DIY guides to teach homeowners how to build a wind turbine..

The most significant problem with early versions of wind generators was that they were big and required a very strong and consistent wind to get them turning. While they were spinning they produced a considerable quantity of power, but because of their height and size requirements, they were not a good fit for many homeowners. Because these wind turbines were being used in residential environments, they needed to be mounted very high in the air to catch a consistent wind. They had to be higher than other buildings and trees so that they would be exposed to as strong of a wind as possible to allow them to generate their maximum power. In order to accomplish this, the wind generator had to be mounted at the top of a heavy duty, and often ugly, tower which was expensive and could cause complaints from neighbors. To make matters worse, there are restrictions on tower height or wind turbine installation in many towns. Large, open areas, free from tall buildings and trees were a better fit for these old, large units.

People with homes on smaller lots, or in areas with buildings or trees have been helped by these modern wind turbine designs. The smaller, newer wind generators need much less wind to turn. Because of innovative construction materials, more recent wind generators are also much lighter than older models. Because of this, even though they aren’t mounted at high up, they can still generate a lot of energy. Another improvement in these more modern wind generators is their blade design which allows them to be more efficient with the wind they receive and quieter as well. These more modern wind turbines are also much quieter and more efficient thanks to their blade design. This can be a big advantage in smaller neighborhoods and will allow many homeowners to install these newer turbines without disturbing their neighbors.

Another advantage to these more recent wind generators is that because they are lighter, they can orient themselves more quickly and actually generate power sooner than their larger counterparts. For a wind turbine to work, it needs to be able to rotate into the wind for proper blade orientation. Generally, this is done with a rudder on the tail. With the larger wind turbines it took a strong wind to orient them before they could start spinning to generate power. In a light wind, they might not even spin up and never generate power. Because of the much lower wind requirement for spinning up, the newer, lighter wind generators can spin up and start producing power more quickly. So, the older, larger wind generators were spinning less often even though they would generator more power when they were actually spinning. Because of this, these newer smaller wind generators can produce almost as much power over the course of a year as these larger versions since they are spinning more consistently. Installation costs can be considerably less with these more receint wind generators because they can be mounted directly to roofs. For any homeowner looking to produce renewable power from a passing breeze, a homemade wind turbine can be the perfect alternative.

?Wind Power

Sat, 03 Oct 2009 01:30:03 +0000

Wind Power is an interesting concept and design that converts energy from the wind to a more useful form of energy. The use of wind power has roots in the ancient European flour mills and the American water pumps. Wind turbines are the most commonly used tool of conversion and the wind power is most usably converted to electricity.
Dating back to as early as the first century AD, man has been using wind power to generate energy. European flour mills utilized the efforts of windmills, as did the American farming and ranching industries.
Large wind farms help to convert large amounts of wind power into usable energy to help power local areas. Some countries have found ways to utilize this excellent energy source to benefit their growing populations. Today, Denmark uses wind power to accommodate approximately one fifth of its total electricity production. Across the world, wind power generation is increasing exponentially and is beginning to be seen as a great renewable energy resource.
Wind power is environmentally friendly, world-wide, and highly renewable. As far as renewable resources, greenhouse gases, and environmental hazards are concerned, wind power is an excellent alternative to fossil fuel derived electricity. However, wind power does begin to come under fire when the topic is the location of the large and sometimes unsightly wind turbines. Situated in the best wind sites, these modern looking structures tend to devalue the scenery and natural landscape.
Today, there are thousands of modern wind turbines in production all over the world, and as of 2004, wind power was the fasting growing energy resource. With the global community focusing on more environmentally friendly energy options, the use of wind power is becoming more and more prevalent. Although the United States is not the highest converter or user of wind energy, it is adding more of this renewable energy to its power grid than any other nation in the world.
Apart from the international community and large scale use of wind power, more individuals are beginning to see and seek the benefits of small wind generation systems to power their homes and small businesses. On such small scales, wind power is highly cost efficient and clean.
Although wind power has a lot of potential, the logistics of its use are debatable. Wind farms tend to develop at sites in remote locations, which significantly increase the cost of production due to transport costs, and no one can fully be sure of the direct or indirect environmental damage of the proliferation of wind power. Despite the theoretical consequences, wind power conversion is on the rise and will be for years to come.

?Wind Power Plant

Fri, 02 Oct 2009 01:30:04 +0000

With the rising use of wind energy, we are beginning to see the rise of the wind power plant. A wind power plant, or a wind farm, is a cluster of wind turbines used to generate electricity over a large area. Wind energy generation is growing increasingly important as public awareness of environmental issues grows and panic regarding the depletion of fossil fuels increases. Nonetheless, both the conventional power plant industry and the wind power plant industry are important for the current and foreseeable supply of energy.

While most electric and power plants are owned by utility companies, a typical wind power plant is owned by individuals and small businesses. These small owners generate electricity with the intent to sell to utility companies. These independent power producers can generate a hefty profit if their wind power plant is in a desired location. Typically, a wind power plant generates enough energy to sustain its existence. However, wind turbines in prime locations usually generate a surplus of wind energy. Prime locations are areas where the wind speed is greatest and generally unobstructed, such as mountainsides, open fields, and ocean areas.

The growing public awareness and concern for the environment has caused a huge market for environmentally friendly goods and services. This, in conjunction with the widespread panic regarding fossil fuels and the cost of fossil fuel derived energy, has enabled the proliferation of the wind energy market. Wind power plants are offering the public a green energy alternative at an extremely reasonable rate. People will find wind energy especially enticing when they look into the benefits of small scale energy generation.

Apart from wind power plants, small scale energy generators can be incredibly cost efficient and are a great way to keep utility bills low and generate a small profit. Owners of small scale wind energy generators can enjoy typical savings between fifty and ninety percent on their utility bills. As with large scale wind power plants, the excess energy generated is automatically purchased by local utility companies.

Wind energy generation is a zero emissions energy source. The environmentally friendly and economical energy alternative is a great way to bridge the supply and demand gap in the current energy market. Theoretically, the United States can generate enough energy from wind to fulfill all of the nation’s energy needs. As the wind energy market grows and develops, it is expected that the public will learn the benefits of the alternative energy and will employ it at home. It is not unexpected to see a sharp increase in the small scale wind energy development, as well as the obvious increase in the wind power plant industry.

?Wind Energy Is More Widely Used Than Many Realize

Wed, 30 Sep 2009 01:30:03 +0000

Wind energy is a power that humans have long tapped into. The first known reference of people using the power of the wind to accomplish tasks, in fact, dates back to the 1st century AD. Today, however, this is an underrated alternative source of power that actually supplies a great deal more homes the world over than many people realize.
On the worldwide scale, the production of wind energy is a drop in the bucket in comparison to fossil fuel and nuclear driven electrical power. The worldwide rate, as of 2007, was 1 percent for wind energy. Still, this equates to a much greater capacity than it would seem on the surface. Wind power, for example, is responsible for producing a whopping 19 percent of Denmark’s electricity. It is also widely used in Spain, Germany, Portugal and elsewhere in Europe. Production of wind power has risen dramatically in the 2007. Estimates put the rise at five times the 2000 rate by 2007.
So, what is wind energy exactly and what are the benefits of using it over other sources of electricity?
Wind power, much like solar energy, comes from a highly renewable, natural source. Unlike fossil fuels, wind electricity, is not in limited supply. This type of energy is generally harvested using specialized turbines that are placed in configurations to make wind farms. The individual turbines themselves are created to transform the wind’s kinetic energy into usable electrical current.
The benefits of using wind energy are quite extensive. Although this source of alternative fuel does have some limitations, the perks of going with wind rather than fossil fuels include:
• Its abundance – Winds blow the world over throughout the year. Although it’s true that some areas receive a great deal more wind than others, this source of energy is fully renewable and fairly constant.
• It is cleaner – Burning fossil fuels to create usable electricity can be rather dirty business – especially for the environment. When winds turn turbine fans and produce energy within a generator, the entire process has little to no impact on the environment.
• It is fairly efficient in low capacities – Wind energy can be used on small-scale farms to completely or almost completely remove the need for a home to be hooked into an electrical grid. Large scale farms, such as those found in Europe, can make a big impact in offsetting the use of fossil fuel electricity.
Wind energy is not a new concept by any means. Still, the power of the wind is really gaining footing as of late. This alternative source of power is already offsetting the use of nonrenewable forms of power in many locations around the world and its use is on the rise.