How Does Wind Energy Work?
March 20, 2010 by James
Filed under alternative energy

J Cosmos asked: Let’s get into small wind power generation today. Or you might say wind energy power generation. There are many types of wind energy systems. What you need is a wind energy system for homes. Today let’s get into the generation of electricity itself. Suppose you have the windmill built and have it on its tower. What kind of generator would you want to use to take all those RPMs from you tower and produce electrical power from it/ Many would think of a simple car alternator. The main reason for that is simply that the car alternator is very, very available. They are not expensive and you probably have at least one in your garage or shop. I am afraid that in order to generate any really useful power, you would have to generate at least two thousand RPMs. The larger and more powerful your windmill, the slower it will spin. You could adapt a chain and belt drive, a gear set, etc. However, I think you will end up with so many other problems it’s better to simply move to permanent magnet alternators. Most successful home made windmill generators use permanent magnet alternators. A permanent magnet alternator will produce power when moving at slow speeds. Some have taken an ordinary car alternator and replaced the standard armature with a new machined armature that contains permanent magnets. The results have been better than the normal car alternator but are still less than adequate. Another idea is to simply take a single or three phase induction motor and fit permanent magnets to the armature. In order to do this, you would need to machine with a lathe down to a size that the armature will allow you to glue the magnets to the armature. I have seen an average one hp induction motor with strong Neo magnets supply over ten amps. Keep in mind that the wound wire limits your current and some have rewound the wire and received up to thirty amps. As many of you have guessed, the disadvantage to all this is the power curve. You will find peak power at a low RPM and at a faster rate the power drops off significantly. The best I have found is the Stepper Motor, also known as a Switched DC motor. These are found in most computer equipment and are quite good. They are cheap, available, and effective. Sometimes you can find a washing machine that uses a large permanent magnet, stepper like motor. If you can find one, they make a superior windmill motor. One serious disadvantage to these motors is cogging. Cogging is the vibration you feel when a stepper motor is rotated. The interaction of the magnets and the laminations/poles will bring this on. The result is that the windmill generation is a little hard to start. But when going, all reaction is gone. It just needs a little more wind to get it going. Then it’s fine. Let’s talk a while about where you want to put the windmill. This is an important step. Finding a place where the wind has no obstacle can be difficult. Trees, bushes, buildings, even the shape of the ground can be an obstacle. A lot of people think that it is a neat idea to simply put it on the roof of their house. This is not a neat idea. It is a very bad idea. Do not do it. The vibration will travel down the mast into the surrounding ground. You do need to put it above the local obstacles. How high? Keep in mind that you have to get it up there and you have to be able to bring it down for maintenance. Keep safety in mind. Things can fall off and hurt someone. So don’t put it near where people gather. Better to hurt a tumble weed than a child. Keep in mind that if you live in a city, the height is probably regulated by code. Find out the regulation first. Before you begin to buy supplies. I think we covered enough for today. Let’s get together again tomorrow. Let me state this before I go. I know many of you just play around with this stuff. Electricity is a fun thing to hobby with and it takes ingenuity. That’s fine. If you are just playing at this, ok. But if you are trying to be responsible and take care of those who depend on you, then this is serious business and you need to take it that way. Information is what you simply must have if you are going to do an effective job of it. If you are serious about learning about how solar or wind power generation can free your family from the elite power companies, click and go to my website where you can learn all about the advantages of solar and wind small power generation. I am not selling a thing, but have allowed some friends to present the information they have in an understandable form. You see all the changes going on around you. How sure are you that we will all have electricity in a few years? You might have to do it yourself. Perhaps the only people who will have electricity or fuel for travel are the ones who provide it for themselves. Do it now. You’ll be glad you did, and so will those depending on you. Water 4 Gas Read more on How Does Wind Energy Work?… Energy Tags: solar power , energy

See more here:
How Does Wind Energy Work?
Using Wind Energy to Make Off Grid Power
March 16, 2010 by James
Filed under alternative energy

Josh Quentin asked: Working to create wind energy for your home does not have to take years to accomplish, nor do you have to have thousands of dollars to invest in your home energy system to offset the costs of your energy bill each month. What you do need is the right information to help you make an off grid power system that does not cost a fortune, and that is easy to build yourself. Finding Information When you want to create wind energy for your home, the best thing that you can do is take the time to do some research so that you can find an affordable option that would not leave you paying an additional bill each month. For most people, a good eBook or an internet search can give you the entire information that you need to have an off grid power source to lower your energy costs. Online information is a good option because it can be free or very low cost. If you cannot find what you need using a simple online search, then you may want to try to find a book or an eBook that has the information that you need to create wind energy for your home. Supplies and Costs The most important thing that you will need to create wind energy to make off grid power is a windmill. If you have experience building, and have some supplies lying around your home, then you are looking at a very low cost for your windmill. For most people, the average cost for one windmill is well under two hundred dollars. Solar power Read more on Using Wind Energy to Make Off Grid Power… Energy Tags: energy , hybrid cars

Go here to read the rest:
Using Wind Energy to Make Off Grid Power
Home Developed Windmill Energy – A Terrific Supplemental Energy Supply
January 26, 2010 by James
Filed under alternative energy
Wind power may be one of the most alluring energy source alternatives on the market these days, not merely for industrial factories but as well as houses. It is one of many great ways to save money on energy . There is absolutely no shortage of wind, and it’s a tremendously useful method to harness your source of electricity even while appreciably reducing your expenses to the local energy provider. Adding a wind-driven model for your residence may well, in the end, reduce your regular costs on using lights, heating units, and home equipment – amid other sorts of gadgets around your residence that regularly draw energy. Home Developed or Professional A home-made windmill may be considered one of the top possible choices to a commercial wind-driven system merely since you can then pick out more inexpensive materials with which to construct it. Though there are selected high quality professional windmills that aren’t terribly pricey, it is nevertheless economically of great benefit to at least investigate a device you put together from your home. Acquiring a commercial windmill could be a helpful selection in case you have either the liquid money to invest for one or less construction skills (or interest) to construct your own given that it without doubt will take some time and persistence. Getting started To start with, you will need to investigate the amount of electrical power your home demands in order to accurately allocate the charges of products you’ll need. The internet provides a wealthy supply of useful details to give a hand here. A good deal of the data is zero cost, however some that is more technical may well involve a modest cost. The essential parts of a windmill core kit consist of wind blades, a tower, a shaft, a generator or motor, along with a base assembly sturdy enough to anchor all the pieces constantly in place when enduring formidable winds or storms. Based on your family electrical power needs, your windmill may have merely 4 or as many as 20 blades. The tower is the piece which keeps the blades together in the air flow for the blowing wind to rotate. The generator changes the wind to mechanical power and stores power meant for coming usage. And the shaft joins the blades along with the tower in order to ensure non-problematic rotation of the blades. Further Concerns Part of your analysis ought to be to ascertain usual wind velocity in your locale to help picking the proper kind of windmill. It’s likewise imperative to understand the usual path of the wind exactly where you live for the proper placement of the windmill. Of course, wind speed and direction are not unchanging, so exactly what you will be figuring out are the most popular. a web weather Internet site or regional weather station should be able to assist. An extra factor is potential obstructions surrounding the windmill, like good sized buildings, trees, or if you dwell in a mountainous community. Considerable obstructions may likely result in a reduced amount of wind, which will mean less electrical power created for your house. Finally, you should look at the projected elevation of the tower from the ground. Wind is usually more active and strong at high altitudes, so if your windmill tower reaches a greater elevation – while not giving up steadiness – you will achieve a superior electrical power benefit. There are innumerable energy saving ideas that you can tap into. Windmill-generated power is one of the best. Gain practical things to know about the topic of Free Traffic System – study this web site. The times have come when concise information is really only one click away, use this chance. Read more on Home Developed Windmill Energy – A Terrific Supplemental Energy Supply… Energy Tags: alternative energy , solar energy can solar power supply the world? why wind energy be used over other forms of energy night light alternative energy company gree peace energy solar solar power alternative electricity how to use alternative power
More here:
Home Developed Windmill Energy A Terrific Supplemental Energy Supply
Alternative Energy Argentina: Bringing Wind Power to Remote Areas
February 5, 2006 by James
Filed under alternative energy

Max Seitz reports for the BBC that wind power is the most widespread renewable energy source in Argentina – and Patagonia in particular has extraordinary potential due to its strong and constant winds. He travelled to southern Chubut province, about 890 miles south of Buenos Aires, where wind power is making life easier for a number of isolated communities In the midst of a dark wilderness, wind-generated electricity is changing lives in the region, lighting homes and schools in remote areas. “Patagonia provides ideal conditions, unique almost, for the development of wind power,” explained Hector Mattio, Director of the Regional Centre for Wind Power (or Cree in Spanish). “We get very strong sustained winds of 11 metres per second, while in Europe they usually only reach about nine,” Mattio added. Cree – funded by the Chubut government and located in the provincial capital Rawson, near Trelew – currently has many community projects on the go to install wind generators. So far, more than 300 isolated rural villages in Chubut have received small wind turbines which provide them with light, communication and power for domestic electric appliances. A 66-year-old Araucano Indian, Julian Ibanez, welcomed us to his stone-built house. Julian owns horses and sheep but his prize possession is a three-blade, 12-metre high wind turbine with 600-watt power (the equivalent of 10 light bulbs). Like others in the region, he simply calls it the “windmill”. “They installed the windmill a while ago now and it’s changed our lives. We didn’t have electricity before, just a kerosene lamp and that was it; now we have light and we can listen to the radio.” Julian led me to a plain bedroom, where he had a fuse box attached to the wall and a 12-volt car battery, and explained how everything worked. The wind turns the windmill blades and a cable takes the energy produced into the house. The fuse box controls the voltage and battery charge. Marcos added that the electrical supply is constant – whether it comes directly from the generator or, when there is no wind, from what has been stored by the accumulator. Some dwellings have installed an inverter, a gadget to transform a 12 volt output into 220 volts – ideal for domestic appliances. Another inhabitant of the area, 30-year-old Adelino Cual, also an Araucano, had this to say: “We have electricity 24 hours a day, not just the little lamp we had before. We no longer have to buy kerosene or gas-oil. It works out cheaper for us.” The engineers had shown him how to work and maintain the generator and the fuse box: “They taught me, for example, how to change the fuses if they blow; I’ve changed them several times,” he said. And Marcos added that the idea is for those benefiting from the technology to be self-sufficient. After visiting the hamlets around about, we made our way to the heart of Chacay Oeste, which comprises a dozen or so houses and a school-shelter which accommodates some 30 pupils from neighbouring settlements. The school has been provided with six wind turbines, installed by Cree in the highest part of the town. “They provide energy for our building, for the shelter and also the teachers’ houses. During the school holidays, they are used to supply energy to the rest of the village”. Before turbines were installed, Chacay Oeste got its electricity from a petrol generator, the noise of which had become part of the landscape for the locals. “The windmills have changed things a lot for the youngsters. Now they have access to computers, and teachers can educate them through television programmes.” “Now I feel I communicate more with other people. Not like before – we were a bit unsociable,” Julian confessed after telling me that he regularly listens to the radio to find out what is going on, and that he really appreciates the Cree technicians’ visits. And at Cree they confirm that this is indeed what it is all about: The social impact the technology has had on the communities has helped to integrate them more. Full BBC Article

See original here:
Alternative Energy Argentina: Bringing Wind Power to Remote Areas



