Your Questions About Wind Turbine Generators Wiki

Charles asks…

How do wind turbines work to store/distribute energy?

admin answers:

I dont want to copy the entire article from the site—please do visit the link below for full information

A wind turbine is a machine for converting the mechanical energy in wind into electrical energy. If the mechanical energy is used directly by machinery, such as a pump or grinding stones, the machine is usually called a windmill. If the mechanical energy is then converted to electricity, the machine is called a wind generator

http://en.wikipedia.org/wiki/Wind_turbines
.
Http://www.howstuffworks.com/search.php
http://windpower.getfast.info/wind_power/?kw=small%20wind%20electricity%20systems,wind%20turbine

Richard asks…

Could using wind power have environmental consequences?

I was wondering if sucking the energy out of wind could affect the environment. Wind is very important in nature and I was wondering if there has been a study done that looked into possible consequences?

admin answers:

It seems no matter how many time this is asked and answered it keeps coming back. Simple logic should tell you that if you look at the head on profile of the blades they describe a circle as they spin and at any given moment the blades occupy a tiny percentage of that circle. There is also the tower that holds the blades up but again they are usually only a few meters wide and the arch of the blades is usually at least 10m above the ground for safety. If you wish to talk about stopping the wind a forest has far more of an effect.
The average wind generator is only ~50-70m high, most wind effect relates to precipitation and cloud movement/formation which occurs well above this height, even the largest wind generator in the world, has by comparison a small blade area and with a metal mesh tower that offer quite small wind resistance. The Troposphere is ~10km high which is a little more than 50 or even 200m.
Http://en.wikipedia.org/wiki/Fuhrl%C3%A4nder_Wind_Turbine_Laasow
At least you didn’t ask if they slow the Earth’s rotation, which believe it or not, has also been asked before a number of times.

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CafePress Wind turbines – Large Landscape Pet Tag – Standard Silver [Misc.]

CafePress Wind turbines - Large Landscape Pet Tag - Standard Silver [Misc.]

Wind turbines. Computer artwork of an offshore wind farm. The blades of the turbines are turned by the wind, which produces electricity. Wind power is an important environmentally-friendly source of e
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CafePress Wind turbines - Large Landscape Pet Tag - Standard Silver [Misc.]

Small Wind Turbine Generator Blue Edition

Small Wind Turbine Generator Blue Edition

The Small Wind Turbine Generator Blue Edition is a good DIY wind turbine. It features a fiberglass reinforced blade which is very efficient in 10 to 25 mph winds. Build your own tower or mount to existing structure. At home, remote cabins or for camping. Each turbine comes with an 8 ft power cable. The more you install the more free clean power you can produce. These can be a good compliment for solar power systems. Charge 12 volt batteries and power all kinds of electronics from lights to perso
Price:$48.00 (as of the date/time of this post. detailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on www.amazon.com at the time of purchase will apply to the purchase of this product.)

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Small Wind Turbine Generator Blue Edition

Wind Turbine Technology (Go Green with Renewable Energy Resources)

Wind Turbine Technology (Go Green with Renewable Energy Resources)

Wind energy is a rapidly growing and the demand for trained technicians is high. WIND TURBINE TECHNOLOGY, is a comprehensive and well illustrated book on the theory and operations of wind turbines that generate electricity for power companies. This book is written as an introduction to wind energy technology. It prepares readers for a career as wind energy technicians who are responsible for maintaining, servicing and troubleshooting turbines on wind farms. This is an inclusive book that covers
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Wind Turbine Technology (Go Green with Renewable Energy Resources)

Your Questions About Wind Generators Alaska

Sandra asks…

What is that with DC? China will erect 3 bridges in Alaska, California, and elsewhere while we suffer from a?

lack of work? This was an ABC news release that was only reported briefly. The report said that there are not enough certified welders in America so they had to involve China. I understand that they will build the main structures in China, then ship them here to assemble. We really have Moe,Curly, and Larry running the country now!

admin answers:

That’s the Obama Administration for you. Screw the American worker, while pumping us up about job creation. Obama has done this before where he’ll bring in European-made wind generator components, and have them assembled by Chinese engineers. Something tells me this might be a deal Obama worked out to help pay off the money we are indebted to China. But the real purpose is to once again, pull the rug out from American workers.

Knowing the lack of oversight in China, I’m sure the metal beams and supports will have to be replaced in a matter of a few years before they rust out and collapse. So I don’t think there will be a lack of work for the welder. But this will be another signature failure, courtesy of Obama.

Lisa asks…

Im looking to move to alaska, Like to chat with someone who lives there?

Me and my wife are looking to move to alaska sometime in the near future. I would like to find someone I/We could chat with to get some more information about the state, living, economy etc… Ive done a lot of research about it but would like to hear it from a local! 🙂 We would greatly appreciate it to chat in email or what not thank you! If you live in a small town that would be perfect, its what were looking for

admin answers:

Im not a local but i lived there two years but didnt you see the news on yahoo front page this morning that it is being evactuated from 100 mph winds and huge snow storms on the way………….. When i lived there it was full of hard ship and expense so if you researched alotta information on the place its not an easy place to live even when the above is not taking place…… Its earthquake ridden also… As you know winter its dark all but two hours summer its sunlight all but two hours really screw ur sleeping up gets down to ninety below zero way too much snow tires go flat every day battery heaters necessary the food was very expensive there in seventys alcan high way was horrible to drive on….. Im sure its changed a teeny bit..housing expensive … Marijuana there of course…… If the power goes out you freeze to death so you need a generator…….. Its an adventure and great photography but for now GOD is not happy at ALASKA…..

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cgb_88195_1 Danita Delimont – Energy – California, Mojave. Wind turbine energy farm – US05 BJA0192 – Jaynes Gallery – Coffee Gift Baskets – Coffee Gift Basket

cgb_88195_1 Danita Delimont - Energy - California, Mojave. Wind turbine energy farm - US05 BJA0192 - Jaynes Gallery - Coffee Gift Baskets - Coffee Gift Basket

California, Mojave. Wind turbine energy farm - US05 BJA0192 - Jaynes Gallery Coffee Gift Basket is great for any occasion. This elegantly presented gift box comes with a 15oz mug, a biscotti cookie, 5 blends of gourmet coffee and includes a BONUS set of 4 soft coasters. Coffee selection includes French Vanilla, Kenya AA, Decaf Colombian Supremo, Chocolate and Italian Roast Espresso, sure to please a variety of coffee connoisseurs. All packaged in our signature 9" x 9" x 4" black box.
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cgb_88195_1 Danita Delimont - Energy - California, Mojave. Wind turbine energy farm - US05 BJA0192 - Jaynes Gallery - Coffee Gift Baskets - Coffee Gift Basket

Your Questions About Wind Turbines For Home Use

Thomas asks…

Where can I buy magnets and wire to make a wind turbine at home?

I need to make a wind turbine to make electricity in order to power a light bulb and charge either a cellphone or a laptop. Where can I get the stuff I need.
Thanks.

admin answers:

You can consult buildings, and electrical devices and material stores on your locality if you want to assemble one by yourself or call some retailers for international companies such as Bonus Turbine of Denmark.

Helen asks…

Do you think the large wind turbines for wind energy are unsightly?

I have heard that many people believe the wind turbines are ugly and should be kept out of the view of homes. I believe they are beautiful and are necessary. What do you think?

admin answers:

I think they are beautiful and should count as a sculpture. It is a perception issue. We are a glutenous nation and we tolerate smog, but not wind turbines or solar panels.

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Santimon-Lucky design of large wind turbines with drilling wrist watch

Santimon-Lucky design of large wind turbines with drilling wrist watch

Watchdays Co. Ltd, which is a enterprises of collection of science, industry and trade, involved in clocks and electrical watch industry.Dedicated to producing cost-effective fashion watches, has a excellent design team, with fashion,popular,love,classic design elements of science and technology
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Santimon-Lucky design of large wind turbines with drilling wrist watch

Your Questions About Wind Turbine Generators

Maria asks…

Why do wind turbines have the generator at the top?

Wouldn’t it be cheaper and easier to maintenance a wind turbine if the generator was at the bottom? Using helicopters to maintenance turbines has got to be more expensive than a truck. All it would need for the thing to work with the generator at the bottom is a large pole, connected to the windmill by a set of two gears. The way old grain mills used to work.

admin answers:

Hey Marcus, there are two reasons, cost and efficiency. The old grain mills had to transmit the torque to the building at the bottom mechanically, they didn’t have electric generators and voltage regulators in those days, if they did, they would certainly have run a pair of wires down that tower instead of some gears and push rods. The other reason, efficiency, is a bigger player today than it was 100 years ago. Most modern turbines today, which generally have 3 long slender blades instead of a dozen or so square metal ones can convert about one third of the energy in the moving column of air to electricity. The old style turbines you saw on farms centuries ago were maybe 5% efficient. The other reason for those big rectangular blades was starting torque, mainly to start the water pump. They were not interested in having the thing run well, or at all in 100 mph winds with tremendous RPM’s, it would simply destroy the entire mechnism.

We run our home on solar and wind right now. Our wind turbine is a commercially made unit a little bigger than a ceiling fan, but can develope almost 1000 watts in good wind. It is small and light enough to take up to the top of the tower in a backpack and install by hand with ordinary hand tools, that was the main reason we selected it. For our home, we should have a larger one, maybe 1500 watts or so, but the weight of the generator almost requires the use of a small crane at that point. I do not know of anyone using helicopters to install or service rotors today. The large commercial ones actually have ladders built into the inside of the tower, and space to work inside the tower top housing. Smaller ones like mine either go on a Rohns Guyed Lattice tower, or similar type of tower, which has a ladder built into the framing for climbing, or they use a crane truck to reach the top.

In our experience the last 11 years, the only thing that needs periodic service is the electronics, regulators, and batteries, which in our case is at the bottom of the tower. In fact, those devices are all in our battery room in the garage. Our previous turbine was a smaller unit with the generator and electronics all in the housing. Each time the regulator burned up or malfunctioned, the entire unit had to come off the top of the tower. This was the main reason we upgraded to the unit we have now. Exposure to the elements, gusty winds and even lightning never seem to bother the generator itself, so we make very few trips up the tower these days. Take care Marcus, Rudydoo

Daniel asks…

What is a good design for a small wind turbine for a school project?

I need a good size for every part for my wind turbine:
blades
rotor
generator
the shafts
inverter and the tower
Please give it detail on all measurements. If you can find a good link or two please use it
THANK YOU!!
I need a good design for my wind turbine, i want the blades to be 2 feet long and a 5 ft high pole. Can somebody help me with the generator and invertor parts please

admin answers:

Here is a great website if your looking to make your own wind turbine at home.

Www.Squidoo.com/HomeMade-Green-energy

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XA DC 120V High-power DC Motor Generators Wind Turbines 2500rpm 60w for DIY

XA DC 120V High-power DC Motor Generators Wind Turbines 2500rpm 60w for DIY

These motors are brand new and high quality, Due to long time storage some surface oxidation but does not affect work. Weight : 500 g Voltage : DC 120v Speed : 2500 RPM Actual power : 60 W When using the high pressure must pay attention to safety Motor connected 8V voltage can start turning Package includes: 1 x DC 120V High-power DC Motor Generators Wind Turbines
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XA DC 120V High-power DC Motor Generators Wind Turbines 2500rpm 60w for DIY

Your Questions About Wind Generators Home Use

Carol asks…

Is it safe to stay home in Connecticut when Hurricane Irene is approaching?

I live in Southern Connecticut and I’m really scared about this hurricane irene. Is it safe for me to stay at home where i live? I’m very concerned and just need to know before it comes our way. Thank you!

admin answers:

Oh you northerners 🙂
I’m from NC, so listen up. Unless you are on the coast, you won’t need to worry. Just be prepared if your area is forcasted to be in a flooding zone. By the time it gets up there the winds are supposed to be mostly tropical storm force, so don’t worry about that unless you have large trees on your property. You should have a few things though:
-enough bottled water supply for a few days
-first aid kit
-flash lights
-batteries, lots and lots of batteries
-weather radio in the event the power gets knocked out
-possibly a generator if you really want power in your home
-non-refrigerated food
-and also have supplies in the event that you need to clean up your property afterwards (chainsaws, brooms, leaf blowers, etc)

I’m supposed to get hit tonight/tomorrow so I’ll be having fun. Good luck!

Ken asks…

What are best wind and solar powered generators?

This would be for a residential area and need to comply to fire and other safety regulations. I want to generate electric power for home and electric vehicles.

admin answers:

You’re asking a difficult question only because the technology is improving each month. What is the best today probably won’t be the best next year. For wind power you will need a wind availibility survey describing the average wind conditions throughout the year for your locality. Every homesite is a bit different. To establish a cost/benefit analysis your first have to know how much wind energy is available.

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Inpro Solar Wooden Solar Wind-Turbine

Inpro Solar Wooden Solar Wind-Turbine

Solar Wooden Wind Turbine This great little executive toy is made from wood. Excellent for demonstrating solar power in action. Simple to put together. Natural wood model and stand with high quality solar cell.
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Inpro Solar Wooden Solar Wind-Turbine

Your Questions About Wind Turbine

Carol asks…

How much electrical energy (in kWh) can the wind turbine generate in a year?

Assume a wind turbine with a hub 50.0 m above the ground, a rotor diameter of 50.0 m, and a wind-power conversion efficiency of 25%. The turbine operates in an area with an average wind-power density of 500 watts/m2 at 50 m altitude. How much electrical energy (in kWh) can the wind turbine generate in a year?

admin answers:

The question is written to allow for a rather simple solution, unlike the challenges of real wind turbine power and energy estimation.

Energy = Power x Time

Electric power produced = conversion efficiency x gross wind power

Gross wind power = power density x turbine swept area

So, with all the equations at hand, we can solve the problem.

Turbine swept area = 2 x pi x (25 m)^2 = 3927 m^2
Wind power density = 500 W/m^2

Thus, Gross wind power = 500 W/m^2 x 3927 m^2 = 1.9635 x10^6 W = 1.9635 MW

Electric power produced = 0.25 * 1.9635 MW = 0.49087 MW

Since the problem identifies the wind power as long-term average, we can calculate the average energy produced in a year.

Energy (Joules) = Watts x seconds
Energy = 0.49087 MW x 31536000 s = 15.487 x10^6 MJ
But the question asked for energy measured in kilowatt-hours (kWh).

So, Energy = 490.87 kW * 8760 h = 4300100 kWh produced in 1 year.

Unfortunately, a real wind turbine would produce this energy in an unscheduleable manner, typically peaking when the demand (load) is lowest. That’s the challenge of wind energy.

Mandy asks…

How much money would an average wind turbine save on a $240 energy bill on an average $31 day month?

On average days too. Like during a warm front. Also include the price of the wind turbine, and how much time it would take to pay off the turbine completely.

admin answers:

Wind energy is not continues and hence it is not going to cut your bill drastically. Even the wind farms can built not to feed continuously to the grid but intermittently. For individuals the cost of wind turbine is going to be very expensive compared to the power bill. Good to go for one with the impact on environment but if you ar going for saving dollars then you are going to be disappointed.

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2000 Watt 9 Blade Missouri GeneralTM Freedom II Wind Turbine (Black, 24/48 Volts)

2000 Watt 9 Blade Missouri GeneralTM Freedom II Wind Turbine (Black, 24/48 Volts)

This unit comes with: Freedom ll PMG (PERMANENT MAGNET GENERATOR) WITH 28 MAGNET ROTOR Freedom ll PMG has no brushes, very dependable 125,000 hours + of rated bearing life Two heavy duty bridge rectifiers for converting 3 phase to dc output Mounting Bracket and Heavy Duty 2 arms tail assembly Tail fin measures 29" tall for maximum tracking No slip rings to fail or replace. Wire tension system Comes with 9 Raptor Generation 4 nylon carbon fiber composite blades Aerodynamically tapered Genuine RA
Price:$659.98 (as of May 8, 2018 at 12:33 am UTC detailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on www.amazon.com at the time of purchase will apply to the purchase of this product.)

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2000 Watt 9 Blade Missouri GeneralTM Freedom II Wind Turbine (Black, 24/48 Volts)

Your Questions About Wind Turbine Generators How They Work

Daniel asks…

Where can gold be used in wind turbines?

The main parts of a wind turbine is the blades, the rotor, the generator, the tail and the tower. But where (and how) can “gold” be used in one of these parts (or others) when the properties of gold is put into consideration?
Thank you for your answer, but if you HAVE to use gold in a wind turbine where would you use it?

admin answers:

Gold are good conductor of electricity, and sometimes it will alloy it with copper for semiconductor devices, gold are not good in turbine blades or same, because of the brittleness against high torque force, it is also not advisable in generators and rotors, they are not enough to produce magnitic force to convert it into electrical energy, it also not advisable in the construction of the tail and the tower, you need enough strength to the carry the whole weight of the wind mill, and the most number one reason is……………. It is too expensive to construct a huge wind turbine made of gold

John asks…

How can i do a wind generator that creat electricity for a science fair project?

Hi, my teacher told me to create a wind generator for my science fair.Its not only doing the wing generator,no, i have to make electricity with it, like i get a bulb and it had to turn on with out batteries, only with the wing thing.Can someone give me like a web page or something that could help me please. HELP!!!!!

admin answers:

I think you mean wind turbine. A wind generator would generate wind, ie, an electric fan.

Look on line, there are dozens of possibilities. Search google for “school wind turbine”. Below link is one of the results.

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Skystream 3.7 Wind Turbine Blades Set of 3 Balanced Marine Coating SWWP

Skystream 3.7 Wind Turbine Blades Set of 3 Balanced Marine Coating SWWP

These will mount on the Skystream 3.7 wind generator system. They have the Marine coating that is weather and salt resistant and also gives them that nice blue/green hue. They are also balanced and ready to mount. These are new in box and were picked up after SWWP closed its doors in Flagstaff. Please note, you are getting the BLADES ONLY, nothing else in included in this purchase. THERE ARE NO RETURNS ALLOWED ON THIS ITEM UNDER ANY CIRCUMSTANCES
Price:NA (as of December 18, 2015 at 9:49 pm UTC product was unavailable detailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on www.amazon.com at the time of purchase will apply to the purchase of this product.)

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Skystream 3.7 Wind Turbine Blades Set of 3 Balanced Marine Coating SWWP

Your Questions About Wind Generators For Home

Thomas asks…

How do I make home made power?

How do I make home made electricity with solar power or a wind generator? I’ve been looking into using wind and solar energy to power my home, reduce electricity consumption and lower my carbon footprint. I’ve looked into solar hot water systems and home wind generators, but what’s the most efficient way to reduce my energy consumption?

admin answers:

Wind generators and solar panels can be expensive, and can take years before they pay for themselves. Often it uses so much CO2 to make a solar panel or wind generator that they can actually increase your carbon foot print, not reduce it. I’ve found that the best way to create home made power is from home made equipment, it’s actually surprisingly straight forward and a fraction of the cost. I used this guide: http://tinyurl.com/ljyok7 to create a simple wind generator which has seen my energy costs drastically reduced.

Sandy asks…

Grid tie-in Home Wind Generator, have you any knowledge of this?

I’m investigating the feasability of installing a grid tie-in home wind generator. Has anyone here installed one of these systems into their home‘s power system?

It’s my understanding that you can install a new power meter to allow for “net metering” or reversing of the numbers by the created power from the generator, thereby saving money or reducing your monthly power bill.

admin answers:

There is lots of information on the Internet. In California, you can get net metering. There are some sticking points. The tower has to be at least 60 feet tall. My neighbors would not like that at all.

It is true that you probably will not get a big enough unit to supply all your power, with a surplus.

Think twice about batteries. If one has net metering, the only value of batteries is during power outages. Batteries cost a bundle, need to be maintained, need occasional replacement, and eat up part of the power you produce. I elected not to have batteries on my photovoltaic solar system

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Solar Wind Turbine – Polished Aluminum

Solar Wind Turbine - Polished Aluminum

This beautiful 1:87 scale miniature wind turbine makes a great executive gift. Restful and hypnotic in action. Turbine blades spin when sunlight falls on the solar panel. Polished aluminum model and stand with high quality solar cell. Batteries not needed. Requires simple assembly. Excellent for demonstrating solar power in action
Price:NA (as of January 17, 2020 at 7:54 pm UTC product was unavailable detailsProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on www.amazon.com at the time of purchase will apply to the purchase of this product.)

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Solar Wind Turbine - Polished Aluminum