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There are two differing kinds of wind turbine; Vertical and Horizontal. Each one performs their own function and they each of their advantages and their downsides. You should choose the one that’s best for you and your requirements. They are doing have one aspect in common and that’s that they generate energy from winds. They simply do it in a separate fashion. Vertical axis turbine has the major rotor shaft running vertically instead of horizontally. This direction may have its benefits and flaws. The advantage is the gearbox can be place in the bottom of the turbine, not like the horizontal turbines. All the weight is not at the good of the tower.

It additionally does not have to be pointed in the direction of the wind. The disadvantages of vertical axis wind turbines is that there may be pulsating torques that will transpire during each turn once the turbine is running in the same direction as the wind. They generate a smaller quantity of energy from the winds.

Other Sorts of Vertical Axis Wind Turbines

Windmill along with a rotation sail. This kind of turbine is the most recent out there because it looks as though sails on a ship once it is up and running. The sails can enlarge or contract to the changing winds. There’s three sails on it and the speed is managed through magnetic counter that expands or contracts these vertical sails. It’s a control unit that might aid to govern the sails so the harm are going to be minimal. The sails could tear but the frame is durable and will last through the storms.

Aerodynamic turbine is created from airfoil base that’s created to capture the kinetic energy flowing from an artificial current to the middle. It can use most of the air mass that runs through by rerouting it over the higher turbines. It may reply to wind and also rivers, creeks, oceans or other free flowing water systems.

Darrieus Wind Turbines are economical nevertheless because of their size and form they can create cyclic strain on the tower which may wear it out quicker. It options three blades that job well in greater winds. They are held up by external structures that are linked from the bottom up.

Giromill is a sort of meal that features 3 vertical blades. It is self beginning so the upkeep is low. These sorts of mills a slow blade rate however they are able to create a high performance and accomplishment in channeling the energy from every revolution of the blade.

Savonius Wind Turbine mills have 2 scoops that are employed for wind conversion. A few do come in three scoops that make it self starting. They look like long helicopter blades that are bent in a direction. This design and shape is to supply ample energy to be adequate.

Windstar Turbines has straight aluminum blades that are attached on every finish of the rotating shaft. This windmill features more than only one rotor and they each have their own twin braking system that has pneumatic disc brakes. They are already produced for sturdy powerful winds.

The advantages to running a vertical axis wind turbine is that they are already easier to maintain and reduce costs, can withstand virtually all wind, low high, lesser in size and simpler to move. The disadvantages are they take twice as much time to create efficient energy from winds, have to be installed on flat land, low beginning torque, some models make use of guyed wires which may add stress to the bottom. The design and the preference of the consumer make the best choice when it comes to selecting the best one for you.

Thousands of people across the globe have already taken advantage of Wind Power technology to make massive savings. Getting the right information is crucial when it comes to converting to green energy get a Free Energy saving report and potentially reduce your power bill by up to 80%. Find out more concerning Home Wind Generators: Vertical Axis Wind Generator Turbines take a close look at the website found at the web address http://www.ConvertToGreenEnergy.com and discover how you can generate your own electricity to assist enormously lower your energy bills.

From: Home Power – Free

As the price of fossil fuels rise, it may be time to start pondering other options for your household power requirements. It’s not as difficult as you might imagine and with the breakthroughs in photo voltaic technology, you can now assemble your own panels for very little money.

And also being capable to build them cheaply, you’ll be able to take advantage of the federal government tax rebates that are on offer as well as local incentives to lower your expenses even more.

So how does constructing your own panels actually help other than financially?

1. Build them as you need to.

Perhaps the very best grounds for mastering exactly how to construct your own residential solar panels is that you could then start to add your solar energy system into your household energy system one panel at a time as your finances enable. In the event you purchase solar electricity panels, you frequently have to pay for them all simultaneously and if you do decide to buy them singularly, it is advisable to have a consultant come out every time and setting up charges often usually are not worth just getting individual panels.

By being able to build them as you can afford to or as you require them, you are in control and having the ability to install them yourself means very little or no additional expense on the part of servicing and guaranteeing they continue to generate electricity.

2. Build them and make an income

There is certainly a growing market place for used and self made solar energy panels. There’s also plenty of people who wish to make the most of this know-how but don’t possess the skill set or the space to create their own. An incredibly profitable market place to tap into and make an extra income.

Here are some facts and easy to understand direct physics and NASA data Examining a Wind Energy Study

This study is about Exploring the concept of wind powered generators. Multi-bladed. Low wind capacity. As opposed to 3 bladed wind foil gigantic monsters.

A Farmer’s windmill

Many years ago, farmers built windmills. As we all know, farmers are extraordinarily gifted in the arts of “do it yourself,” and “make it work.” They are personally driven by production. They built windmills to lift water out of the ground for their cattle and for irrigation. They did not use silly, three bladed, passively turning windmills. They did build multibladed windmills which aggressively captured the wind and aggressively converted the wind to torque energy. And did you notice, by their folding design, when they were hit by hurricane winds they automatically folded out of the wind, and automatically unfolded when the extreme winds subsided? Mechanical automation without computers to reboot, and without electronics to short out. And NO silly three bladed things. Smart farmers.

Maybe we should have real farmers in charge of government spending? Less silly three bladed wind turbines.

The farmer needed power to lift water, a long way up from a well, consistently for their cattle or irrigation. Water weighs a lot. Just lift a gallon of water and see what it weighs. Consider lifting all of the water in a well pipe 50 feet up inside of that well pipe. There was a steel rod transversing all of that distance to lift the water, so to the weight of all that water add the weight of the steel lifting rod. That is a lot of weight. The farmer needed enough power to lift the entire length of that water. Yes, the entire weight every time. The water valve is at the bottom of the pipe, down in the water. And NO they did not set the valve 32 feet up, because the seal might not hold. (And YES they could pull a lever at the bottom of the tower, or use a float valve, which released the mechanical lifting of the water when they had enough for their cattle. And YES they had a lever to pull which disengaged other parts for maintenance, even when the windmill was turning. And YES the design would automatically fold itself out of the wind when hit by hurricane winds, and automatically reset itself when the extreme winds subsided. And all of this with NO electronics to go bad, and NO computer controls to have to reboot, etc.) Smart farmers. So, as we were saying, they needed a lot of power, every time that the well pump shaft was lifted by the windmill.

Now, think about this. How many times have you seen three bladed windmills out west, were the water table is a long way down? Never. You never saw that. You always saw multibladed windmills. Never 3 bladed ones.

Many Years of Wind Mill Experience

Now, think about this. Wilber and Orville Wright invented the airplane in 1903. There was publicity about that at the time. There were other people trying to utilize the Wright Brothers’ designs for wing shapes for themselves after that.

1903- That’s over 100 years ago.

Lots of people doing lots of thinking for over 100 years. But, no airplane wing windmills EVER became popular with the farmers. Nope. None. Did not happen. You go look again at the windmills out west pumping water. No airfoils using passive air lift. Not for the farmer. Remember the farmer needs power to help on his farm. He is not some silly teenager buying the latest fad advertised at the mall. He demands production. He demands power. He builds a windmill to work. You say, “But that is not the way it is done”

All of the other lemmings are building airfoil ‘wind turbines.’ The blades ‘fly’ and there are ‘turbulent slipstreams.’ Oh, no! Do not make me think!” Go talk to the average farmer today. Today’s farmer, with his Global Positioning System on his big turbocharged Electronically Fuel Injected tractor, and ask a farmer what he thinks about the three bladed “wind turbines.” Go. Ask. He will probably smile and be nice to you. But when you ask him why he does not invest in them, he will probably simply get back on his state-of-the-art, GPS equipped, self-navigating, air-conditioned tractor and go back to plowing, thinking that you are some city-slicker idiot that will never learn.

Farmers are probably a lot smarter than the average big city lawyer. Lots of farmers these days have a four year college degree in agriculture, which means that they study a lot about their business. A lot. And to top it off, they have direct, hands on experience with an extraordinary range of electrical and mechanical equipment. A farmer using a windmill to pump water is wise. The rest of the U.S. should learn from them.

Before your irritation at a blatant disregard for current standards and engineering expertise and even government spending get you upset, think about it.
Energy for Household Power

We estimate that the average needs about 12kw for average daily use. We looked on the net and found a range of 10kw “wind turbines” which require a “startup” wind speed from 22.5 mph to 31 mph. (Oh, and by the way, they seem to have changed their advertised startup speed since we began telling the world of our low wind speed startup design.) That is a lot of wind. Are you willing to wait for a tornado to go past your house for the “wind turbine” to work? Probably not.

Can you afford even one of the homeowner sized three bladed, airfoil imitating, “wind turbines” like your tax dollars are being wasted upon? Waiting for that rare blast of wind might be a silly investment. So, it is probably not in your current budget.

OK, so what do you do? You think like a farmer. Remember, farmers are smart. Get yourself a multibladed wind powered generator. Get a bumper sticker that says, “Think like a farmer.” Remember, just because the other lemmings are dashing into the sea does not mean that there is any true logic to three bladed “wind turbines.” Whatever it takes, get your head straight. Think.

Not enough logic?

Really?

You say, “But the engineers . . .”

Wind Powered Generators Archimedes, Levers, Torque

Archimedes, about 287-212 BC said about the use of a lever,

“Give me a place to stand on, and I will move the Earth.”

And guess what, a blade on a windmill, or on a wind powered generator, or even on a “wind turbine,” is a lever. Remember that Physics class that you took, where you should have learned more. Here is a refresher: (force) x (distance) = torque. So, if you want a lot of power from your “wind turbine,” it is a good idea to make the blades capture lots of wind. Got it? You want a lot of the force to be directly on the blades, not wasted in aerodynamic “lift.” Got that? And, you want to capture most of the wind passing through the blade area. See? That was not so difficult to understand. Think about what you have seen. Farmers need mechanical power. Multi-bladed Windmills produce lots of power. Three bladed, aerodynamically “lifted” “wind turbines” do not produce much power. The laws of physics are not wrong. Wind Powered Generators, based upon the laws of physics are the best way to go.

A blade that is wide at the furtherest part away from the hub should give better torque and thus more power.

A blade that is wide close to the hub and skinny way out from the hub is exactly backward. That is an idiotic way to design them (unless you don’t want them to work??? If they worked then the need for oil and gas might seriously diminish. Now who would benefit from shoving non-efficient silly three bladed wind turbines down the public’s throat? Hmmm?). Think. Think. Think. Look at the blades on this link: “wind turbines,” and here; silly of them to ignore simple physics like that. Think.

You have seen “wind turbines.” Something is definitely not right about them.

Wind Energy Physics

Think. Use your own brain. Do not be afraid to think. Something is not right with those “wind turbines.” Look at them again. They are just not right. Archimedes was not wrong about levers. Farmers are not wrong about pumping water with windmills. Physics 101, where you should have studied, was not wrong about force x distance. Those “wind turbines” are just plain idiotic. Think. For yourself, think.

Take a piece of paper. Go ahead. Hold two corresponding corners in your hands, make that section flat and horizontal, and blow across the top surface. Sometimes, the back of the sheet rises, if you blow hard enough, and get the air flow in exactly the right place. It is called “Lift.” Now take the same piece of paper and hold a large width of both ends and blow directly onto the middle, with the same amount of air.

Yeeooow! What a discovery! You do not need an engineering degree and calculus to see that direct air pressure against the side of a flat surface produces far more force than over the edge with “lift.” “Wind turbines” work on lift. Windmills work on air flow pressure. Lift vs. direct flowing air pressure? You have no excuse for thinking that “wind turbines” work well now. Physics does not lie. That paper in your hand did not lie. That was a pretty simple example. Those farmers’ windmills were built right. Think for yourself.
Wind Energy Common Sense

You tell your children to think for themselves. You tell them of examples of people that did not think for themselves. There is even a famous tale of an emperor, being duped by lies, when he did not think for himself. Remember when you were young and your parent’s read you the story of The Emperor’s New Clothes? Think about it. Think for yourself. Look around you and observe reality for yourself. “Wind turbines,” as they are now, are like the Emperor’s New Clothes. A little child, being innocent of the vanity of adults, simply asked “Why is the Emperor not wearing any clothes,” and the truth was set free. Think.

. . .”But the blades fly”. . . “But turbulent slipstreams”. . .” But, but, but, everyone KNOWS that 3 blades are best because you do not want too much power.”. . . “And the Emperor really WAS wearing new clothes”. . .

Obviously this was not written for idiots. If you feel like a lemming, and want to dash into the sea; well, don’t. Lemmings do not always dash into the sea. You can think for yourself. You can read the links that we give for physics and NASA information and you can see the facts for yourself.

Wind Energy= Natural Energy

Look at solar and find that the solar panels created such a tiny trickle of power that they were actually a waste of space. Thousands of dollars to trickle charge a few batteries? No way. Not with our money.

We looked at water power from streams and rivers and found a huge amount of potential energy there. But, not many people have fast flowing streams available on their property.

Look at wind power and you’ll find vast and renewable resources of energy there. Look at wind turbines and you’ll find the 3 bladed ones to be idiotic in design. Look at the old farmer’s windmills and consider them to be extremely logical in design, extraordinarily aggressive in capturing wind energy, and phenomenally safe for birds.

We compared the calculated wind energy capturing capacity of our Wind Powered Generators (per kilowatt rating) with the calculated “airfoil lift” wind turbines and found that our Wind Powered Generators have a calculated Kilowatt-Hour return of more than 4 times that of the “airfoil lift” wind turbines.

Wind Energy and NASA

We looked at wind powered energy sources and quickly found that they were not well designed. The commercially produced wind powered energy sources were incredibly inefficient. But, in their inefficiency, they were more efficient than the solar panels. Thus, we decided to analyze them and potentially build our own. We looked at the parts for wind power sources and studied each part incrementally. This has taken us a few months, about a year now. An airfoil [or here] on edge, in a steady stream of air, does create lift. Albeit, very little lift unless there is a lot of air flow, but lift none the less, and measured in joules of energy per volume of air flow, it is very little. A flat plate, perpendicular to a steady stream of air, has the maximum mechanical advantage, and has far greater joules or energy per volume of air flow. But, we do not want to totally blow away our wind powered generator by making it flat to the wind, so we set the flat plate on a 45 degree angle. Maximum force perpendicular to the direction of the wind. And that force is against the blades of the wind powered generator to make it turn! Yes, there is drag. But drag, in this case, is transferred to the mechanical structure of the wind powered generator. Maximum turning force. Maximum torque on the shaft that turns the wind powered generator.

Having difficulty envisioning this?

Look at the NASA example of a kite. Click on “select view” then “side” then Click on “Trim.” Adjust the “B-Bridle” and the “K-Knot” until the “lift” is maximized. It is a simple visual representation, but it gets the point across. More information from NASA at “Kindergarten through 12th grade” explanations: Kites, and general Aerodynamics. Get it? Flat plate. 45 degree angle to the wind. Maximum torque for energy generation.

Wind Energy and Angle of Attack

Flat plates are a logical starting point for the design of a wind powered energy system. From fluid dynamics we know that an attack angle of 45 degrees is the most efficient for angular energy conversion of flowing air against a flat plate. At 45 degrees, it spills the energy depleted air flow which is replaced by the upstream air flow, as it has to because it is wind power. Stay with us on this. Focus. Think.

We have studied solar and wind as alternative energy sources. We are giving you a report of our findings. We are giving you direct references to physics and direct examples from NASA. We have made some discoveries of products being offered, their benefits, and their shortcomings. We are building wind powered generators based upon logic and the laws of physics. We have read and listened carefully to the lemming followers of the “wind turbine” fad. We have studied their calculations and their conclusions and found them lacking. The laws of physics are not false.

Flat plates, even if they are slightly curved for structural strength, are far better than airfoils for a wind powered generator.

David Bruce is a professional blogger who blogs on the topic of Wind Powered Generators http://windenergysystems.blogspot.com/

A home solar electricity system usually costs about $8-10 per Watt in 2009. When government motivation programs exist, and coupled with with lower costs secured through volume purchases, installed costs for solar panels can become as low as $3-4 watt – or some 10-12 cents per kilo watt hour can be achieved. Without incentive programs, solar energy costs range between 22-40 cents / kWh for massive PV systems.

Another system being used for massive power stations is the concentrating solar electricity ( CSP ) technology, this is a large array of mirrors or lenses that are focused to either produce heat, or aimed towards PV systems. These are built at a cost of $2-$4 per Watt. Some guess that these sorts of solar arrays can produce 25% of the world’s energy wishes by 2050. It is expected that the price of CSP can become as low as 6-7 cents per kwH, as low as standard power generation. The CSP industry is growing quickly in Spain and the U. S. , and the SEPA is tracking over 5,000 MW of new project headlines that are slated for development till 2015. Only some of them will be built ; allowing, financing, technology and other things need to slide into place first but the industry is balanced for rapid growth regardless of any individual project’s outcome.

Solar energy has already got a incredible effect on the world economy. Domestically, the US market for PV is expected to be around $27 billion bucks by 2020 according to the dep. of Energy, and at once and indirectly create 150,000 new jobs. Talking practically, solar power also allows countries without a grid infrastructure to power isolated areas, and individuals to power their own home independently, constantly receiving a free source of energy from the sun. Even in the U.S, distributed transmission lines and autonomy of power sources is beginning to become more urgent due to aging infrastructure and local emission restrictions. As an example of energy independence, Hawaii’s Mauna Lani Bay Hotel’s installed PV cells on its big roof. These generate seventy five kW of energy and this solar energy panel array is predicted to pay itself off in five years.

Solar power isn’t subject to political risk, and it is not possible for it to be blocked. Solar panels can also be placed on non-arable land, such as that present in New Mexico, the California Desert, and Arizona. This can also be considered in other nations, like Pakistan, India, China, and even the Saharan Desert in Africa. It is figured out ( from a Rice university whitepaper ) that it would probably take 25000 square kilometers of solar panels to provide all the U.S. Electricity wants for one year, and there is definitely this amount of land available in the U. S. . Actually, more land is being employed to grow ethanol currently. I expect that within 30 years, solar power will become the dominant energy source in a lot of the developing world and the united states.

The clean energy industry may not be popping the champagne cork, but it is at least holding the bottle in hand. While not unscathed by the recession, the industry sees growth in several sectors, according to recent reports.

For example, use of smart meters—a key technology for better energy management and efficiency – is increasing at a rapid clip. A study by ABI Research, “Advanced Metering Infrastructure (AMM and AMI),” forecasts that the number of smart meters installed worldwide will reach 76 million this year, up from 49 million in 2007. Smart meters will benefit from an estimated $4.5 billion that the US plans to spend on smart grid initiatives as part of the federal stimulus package.

“We don’t think that the economic crisis is having a significant effect,” says Sam Lucero, senior analyst for ABI Research. “Utilities’ smart metering deployments are typically multi-year plans developed in the context of regulated market environments, and not terribly susceptible to short-term economic fluctuations.”

Press reports indicate that two other energy-cutting products are poised for significant growth this year. Moneynews.com quotes analysts who say demand response companies are likely to see recovery in 2009 following a dramatic fall in stocks of some leading companies. Meanwhile, industry insiders say they expect continued expansion for combined heat and power, a resource that has won new federal tax incentives and state support. See my article in the January/February issue of Cogeneration and Onsite Power Production magazine for more details.

Not all the news is good though. Greentech Media and the Prometheus Institute for Sustainable Development project that the global market for photovoltaics will shrink 15% this year to $12 billion. This is solar energy’s poorest performance since 1994, according to the report. At the same time, Lux Research says this year’s solar shakeout – caused by oversupply of cell and module capacity – will push solar prices closer to grid parity and precipitate expansion.

Meanwhile, expect to read a lot more about the clean energy sector in the coming year. William Brent’s Search for Cleantech reports that members of the media foresee heightened coverage of the cleantech sector in 2009 (and it certainly wasn’t light coverage last year.) Seventy-five percent of bloggers, mainstream newspapers, magazines and broadcasters surveyed say readers and editors will demand more coverage of the sector. So while the champagne may not be flowing yet, the information certainly is.

Visit Elisa Wood at www.realenergywriters.com and pick up her free Energy Efficiency Markets podcast and newsletter.

Article Source: http://www.alternativeenergybase.com