What percentage of wind energy does a wind turbine convert into power?
Hey Henry, good question. Actually, there has been quite a bit of work done in this area. Wind turbines today are basically around 33% efficient. There are variations of course, the more blades a turbine has, the less its efficiency. Turbines with multiple blades are generally built for high winds, such as an arctic weather station, or on an offshore oil platform. The theoretical maximum efficiency for any wind turbine is 59%, it's called the, "Betz," limit, named after an engineer that did work in the field years ago.
If you want to learn more, you can go to the source. The American Wind Energy Association is a non profit group whos sole mission is the advancement of wind energy. There are some other places to look for information on the subject, I will list some other groups below. The easiest way to get right to the math work is to google, "Wind Turbine Efficiency," and look for a link to an AWEA website. They have all the formulas and examples spelled out for you right there. There are a couple guys considered the gurus of wind energy, Mick Sagrillo and Paul Gipe. They have each written books and articles on the subject and teach courses regularly as well. You might find some of their work online or at the library.
We have a wind turbine at our home in the Northern Great Lakes. It's our third, the other two didn't work out as well as we hoped. To be honest, this one is a good unit, but it's had it's issues as well. Wind turbines are not for everyone, but if someone has some acreage, good winds, and doesn't mind fussing with the machine from time to time, it can be an interesting pastime, much like growing your own tomatoes instead of buying them at the grocery. Hope this helps. Good luck, and take care.
how can I connect a windmill to my home electrical unit?
the wind spins turbines on the windmill to generate electricity....... do i need to buy some kind of an inverter to hook up the power generated from the windmill to my home?
Your wind mill will produce DC (direct current) electricity. You'll need to convert it into AC (alternating current) before running it to the electric panel in your house. There are converters available to do this.
The link to this web site will give you a better understanding of this process. It is a good idea to have a licensed electrician run the power to your house, if done wrong... extremely hazardous!
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