wind turbine

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.
Price:NA (as of December 14, 2017 at 9:46 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 at the time of purchase will apply to the purchase of this product.)

Read more

Inpro Solar Wooden Solar Wind-Turbine

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.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Syndrome

Joseph asks…

Isn’t it time to face the truth about wind power?

Wind turbines are very expensive to build and install, and maintenance costs are ridiculous. They kill thousands of birds and bats, are aviation hazards, and are so noisy that even the environment-minded Kennedys blocked the construction of a bunch of them on Cape Cod. They even cause a disease called Wind Turbine Syndrome in people who live nearby. Now it turns out that wind farms cause climate disruption as well. On top of that, it has been proven that “mathematically windmills are completely unsustainable” (see link below). So–shouldn’t the politicians look at the facts and stop spending our money to promote a technology that is profoundly stupid?

admin answers:

None of the above is totally factual. Bird kills? Some, but high rise office buildings kill thousands, as do pesticides, herbicides and house cats. While building wind turbines ain’t cheap, they’re far cheaper per kilowatt hour over X years of operation than coal burning plants when ALL of the costs over 5/10/15 years are considered. Maintenance as per hours of operation divided by hours under repair per unit is less than coal plants when again, all of the supply tail and disposal issues are factored in. It wasn’t the ‘Kennedy’s’ alone that were opposed to the Cape Cod project…it was everyone on that particular part of the east coast. Wind Turbine Syndrome? Try living down wind from a coal plant.

Here in the southwest we have sun AND wind almost everyday. Even on the ‘calm days’ the sun shines bright and on the few really cloudy days the wind blows at a steady clip. In the mid west you can count on a lot of wind. We’re talking about at least 1/3 of this country that could get by with only a minimum of coal or gas burning power plants. Of course that would cut a massive hole in the coal industry and the coal burning power plant companies…so of course they don’t any part of 21st. Century technology. 99% of the propaganda against solar and wind is exactly that…propaganda to save a 19th century technology from going extinct.

Lizzie asks…

Wind turbine syndrome? Infrasound?

Apparently those huge wind turbines can give off infrasound (sound >20 Hz) which causes a lot of things like nausea, problems sleeping, difficulty concentrating etc. What i am wondering is do they ALL give off this and if so at what distance from them is the infrasound at its prime? I would like to find out also is there a way of producing infrasound at home for the purpose of experiment to see if it has any effect (as some people are apparently more affected than others) and has anyone had any bad experiences with it?

Thanks 10 points.

admin answers:

I quote
“With regard to effects of noise from wind turbines, the main effect depends on the listener’s reaction to what they may hear. There are no direct health effects from noise at the level of noise generated by wind turbines. It has been repeatedly shown by measurements of wind turbine noise undertaken in the UK, Denmark, Germany and the USA over the past decade, and accepted by experienced noise professionals, that the levels of infrasonic noise and vibration radiated from modern, upwind configuration wind turbines are at a very low level; so low that they lie below the threshold of perception, even for those people who are particularly sensitive to such noise, and even on an actual wind turbine site.”

See link for the rest.

If your ‘source’ is anything other than the usual ‘scare mongering’ by the no-nothing morons of the gutter press, by all means counter this conclusion ..

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators Wiki

Ruth asks…

How does a Vertical Axis Wind turbine work?

i am writing a report and i need to know how the generator on a VAWT works please thanks ~William~

admin answers:

Each vertical vane is an airfoil (airplane wing) that generates lift as air passes by it. This lift is changed into rotational torque because of the position of the vane with respect to the vertical axle.

Laura asks…

How does a wind turbine work?

I need to know for a science project.

admin answers:

Yay. Science projects are a lot of fun, so I wish you luck with yours. 🙂

A wind turbine is a device that converts kinetic energy from the wind into mechanical energy. If the mechanical energy is used to produce electricity, the device may be called a wind generator or wind charger.

There is a ton of info on the sites that are pasted below.


the first three seemed to be most helpful.
Good Luck 😉

Powered by Yahoo! Answers

Your Questions About Wind Generators

Paul asks…

What is a good web site to share my wind generator design?

I have built my own wind generator and i need some feedback on what people thing of my design. Do you know of any web sites where i can share it?

admin answers:

American Wind Energy Association

Donna asks…

What size wind generator do I need to replace my electricity-winter 800kwh summer 2400kwh?

I live in a very windy place and would like to consider a wind generator – I don’t know how to figure out what output I would need – my electric usage monthly varies from 800KWh in winter to 2400KWh in summer.

admin answers:

The quick answer is 2400kwh would probably need close to a 20kw generator but if you want to get an average for the year maybe 1600kwh average you might get away with 10kw.
Very windy is a relative term so you will need to look at a wind map. Go to and select your state and then find your area.
You will need to take that information and check it against a power curve for different wind turbines. This is one for a few turbines in the 10 to 20kw range. Http:// This will give you an annual output for this brand of wind turbine. If you look at the chart the left column is the 20 and the far right is the 10 and notice how different the outputs are from just 12 to 15 mph wind speed, that is why an accurate wind speed is important.
Also I don’t know about your place but where I live we have much better winds in the winter than summer so for me average through the year is what I go by.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Jobs

Mary asks…

what is the better career computer business or wind technology?

i have always liked to work with computers but not alot of jobs where i live. I could go work on the wind turbines i would have to move but not far im just not sure wich one is better right now.

admin answers:

My wife during the last couple of weeks found herself without a job so she used the opportunity to hunt for a change of career. She was really stuck until she unearthed the resource in the box below which gives tips and tricks on how to choose a career. Now she is aware of where she’s going, and more importantly how to arrive.

Susan asks…

do you need a license to work in a wind power facility in Alberta?

I know you need a power engineer license to work in power plants, because the complex and high pressure and temperature process. But for wind turbines the process is completely different. It still requires to have a power engineer license to work in a wind power site?

admin answers:

Possibly the law requires a license for the man in charge, but likely the other employees do not need a license, but a person with a license (or other credentials) would be given preference for a job opening, all else equal. Neil

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators For Sale

Robert asks…

Which is the best DIY solar panel/wind turbine program? Real people only, please.?

I’ve been looking at all of the options for installing solar electricity systems online, and I’ve noticed that even the so-called review sites all seem to be part of a sales pitch….haven’t found a single, independent review of any of these products. Has anyone out there actually used any of these (Earth4Energy, HomemadeEnergy, etc.), and if so, how good are they?

admin answers:

If you have noticed that Earth4Energy is a scam (which it is), then you may be amused by my analysis of it at

If you want to build a wind turbine yourself (like a good engineer would), then get the following book:

Homebrew Wind Power
Dan Bartmann & Dan Fink
Foreword by Mick Sagrillo

ISBN: 978-0-9819201-0-8
Published by Buckville Publications LLC

You can get this from This is a startlingly complete book and it has all the background theory you need too. They explain why, for example, you cant use a car alternator or something from a generator, and then proceed to build alternators from scratch. The references are compete — if you explore them and have the time to read, you will be right up there with the pioneers.

As for DIY solar, you can get the parts (panels, inverters, batteries, charge controllers) individually from many sources and make a system. It will not be cheap. You can’t make your own silicon cells, and probably aren’t up to designing the electronics, can’t make your own batteries etc.

My recommendation is this: Get the wind book. Look through the web sites of some of the better looking solar dealers, and if they seem to be “no bull” then e-mail them and tell them what you want. E.g. An entry level system, 80W panel, battery, inverter and charge controller so that you can make enough power for say, a small laptop. The good ones will be able to tell you what works together.

If you are thinking of a whole home solution, then you have a lot of reading to do. You need to switch to natural gas or propane (no electric heat, electric stove, electric hot water) and absolutely mininize the electrical load.

It would be nice to market a good DIY manual, but with a truthful title like “Generate power at home for more than you are paying now” or “With thirty thousand dollars in equipment, you too can avoid those monthly power bills” sales would be pathetic.

Have fun.

As for “real people” comment, when I see questions like this, I wonder if I am wasting my time because many of the questions are not real either. They are simply created by scammers so that they can add their scam replies and rate it best answer. I find this particilary galling when someone says, “this is for my science fair, and I am 14 years old” and all the answers are Earth4Energy scammers. Other times, I find my comments pasted on fake energy sites with links to pharmaceuticals. It is a mad world out there.

Michael asks…

Does anybody know of any alternative energy companies that offer stock?

or where to find out.

admin answers:

GE electrifies the world by providing reliable, efficient products and services for the energy industry. We help businesses and authorities that generate, transmit or use electricity. We work in all areas of the energy industry including coal, oil, natural gas and nuclear energy, as well as with renewable resources such as water and wind energy.

Americas Wind Energy Corporation (AWNE.OB) manufacturing and marketing of medium sized (500 – 1,000 megawatt (MW)) wind turbines for the North American market.

Babcock & Brown Wind Partners (BBWPF.PK) An Australian based specialized investment fund focused on the wind energy generation sector

Gamesa Corp. (GCTAF.PK) 18% of the world’s share of the wind turbine market. Based in Spain.

Kore Holdings (KORH.PK) A power provider and marketer of alternative energy from wind farms, hydro and distributed power facilities.

McKenzie Bay International Ltd. (MKBY.OB) Develops wind powered alternative energy systems.

Mass Megawatts Wind Power Inc. (MMGW.OB) Develops prototype wind energy production equipment.

NaiKun Wind Energy Group Inc. (NKW.V TSX Venture Exchange) Wind energy developer in the Haida Energy Field off the coast of British Columbia since 2001.

Scottish Power plc (SPI) A leading developer and operator of renewable energy in both the UK and the US. It is one of the largest providers of wind energy in the US.

Shear Wind Inc. (SWX.V Canadian Venture Exchange )Provider of wind-generated energy in Atlantic Canada.

Sea Breeze Power Corp. (SBX.V Canadian Venture Exchange ) Developer of large-scale windfarms and underwater electricity transmission lines in British Columbia.

Tower Tech Holdings Inc. (TWRT.OB) Involved in the engineering, manufacture, and sale of wind turbine extension towers and monopiles to the wind energy industry

Vector Wind Energy Inc. (VWE.V Canadian Venture Exchange ) developer of wind energy projects in Canada.

Vestas Wind Systems (VWSYF.PK) 34% of the world’s share of the wind turbine market. Based in Denmark.

U.S. Wind Farming (USWF.PK) The federal court in Chicago entered a Final Judgment as to U.S. Wind Farming on October 20, 2006.

Western Wind Energy (WNDEF.PK) Produces clean renewable electrical energy from over 500 wind turbine generators located in Tehachapi and San Gorgonio Pass (Palm Springs), California.

Most of your stock brokers or online brokers will help you to invest. Here is a is of brokers that Yahoo came up with:*-***

Powered by Yahoo! Answers

Your Questions About Wind Turbine Technician Jobs

Maria asks…

Is a wind turbine technician a reliable career?

im looking at schools but am hesitant because i’ve been reading articles discussing wind turbines as a scam. and research that talks of wind turbines complete inefficiency. thoughts and advice?

admin answers:

Some for profit schools over estimate the number of jobs and how much they pay. But then, the number of guys who will climb a 200 ft tower with a tool belt is not that large.
Fortunately there is a demand for guys to crawl all over transformers and through switchgear, and you don’t have to climb any 200 ft towers. We pay $30 an hour.

What I could really use is more relay technicians who can create relay testing programs out of thin air.

Donna asks…

What is the salary for a windsmith or wind turbine technician?

I’m an experienced electrician with as background in construction, automotive manufacturing and robotics. I’m laid-off right now and thinking of a career change to the “green collar” industry. What are the job opportunities and wages in this field? Any employment leads would be very appreciated. Thank You

admin answers:

Google it or go to career

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators For Home Use

Sandy asks…

Make electricity with steam at home?

This is probably a silly idea but I really like the idea of making my own electricity. I’ve thought about solar and wind but neither would really work for me. My wife & I will be building a new home in 9-10 years and I have a new idea…. We want to have one of those outdoor wood burning furnaces to heat the house. Is there such a thing as a small steam powered electric generator? If there is, maybe I could use some of the heat generated in the furnace to boil water, make steam and turn a small turbine to generate electricity. This way, I could heat my home in the winter and make my own electricity all year long just with wood. Just an idea (maybe a stupid one). If anyone has any info on this subject please share it with me. Thanx.

admin answers:

The killer here is efficiency. The efficiency of a steam turbine is only on the order of 30%. The equipment is pretty expensive too unless you go with some kind of home brew set up which can be dangerous. You would need to burn a lot of wood to make any serious amount of power. It would probably be cheaper to buy from the grid.

Chris asks…

How can I start a wind turbine Business and where is a good place to look for grants?

admin answers:

The energy efficiency sector will skyrocket the next few years, so good choice with that!

Wind farms are starting to pick up attention from the general populace due to the dwindling supplies of fossil fuels and their rising prices, which in turn contribute to the rising power expenses. The use of fossil fuels to generate electrical power is also unfriendly to the environment because of the pollutant nature of fossil fuels.

There are two reasons that people may want to invest in wind power. First, to save up on power expenses by relying fully or partially on wind turbines to derive electricity; Second, to become more environment friendly. No matter what the reasons may be, you can take advantage by setting up a wind power business.

A Good Location for Wind Farm Business

The first thing that you have to ask yourself when planning to engage in a wind power business is, Do I have the right place to harness the power of the wind? Household wind power systems do not need to worry about this since their power requirements are minimal, but to be able to feed houses you would need to produce a lot of electricity. The best place for this is a location where there is plenty of breeze to turn your windmills, like near the shorelines as well as high places.
You Need Windmills

Windmills or wind turbines are the driving force behind wind power systems. It is through these turbines that the wind is used to harness electricity by using the kinetic energy generated by their turning motion. The motion is initiated when wind is blowing the turbine panels. No matter if the wind blowing is a breeze or a gale, the motion will continue to harness kinetic energy and convert it into electrical energy.

Wind turbines used in a wind farm can either be commercially made or made at your own home. Buying commercially means you can get high-quality turbines, but would cost a lot to buy and install. Using home-made turbines, on the other hand, would require a bit of work by hand but are cheaper. Materials for home-made turbines can cost you only by the hundreds, while commercially made windmills may cost you thousands to acquire.

Power Lines

If you plan to invest on a wind power business, you would need to be like the big-time power distributors and install power lines from your windmills or power source to your clients. Fortunately, power distributors nowadays also buy power from independent power distributors whether they are using natural power sources or fuel fossils. As a windmill power generator, you are in line to become one of the power distributors feeding power to the local power company.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Technician Salary

Richard asks…

do i have traits of a sociopath?

i can’t settle for average. i must move on to the next bigger and better opportunity.

career wise, in 2 years i’ve went from a fry cook->skilled laborer->field technician->wind turbine technician, i’m only 20.

my salary in the past 2 years has jumped in 5,000 increments with each job i moved up to.

i am very skilled in aceing interviews. i know what they are looking for. i know what questions to ask. i know when to laugh, i know when to make the manager laugh. i can make them bend over backwards to offer me the job, but i usually play fair and won’t take a higher salary offer.

i have strange hobbies. i enjoy reading electronics, programming, and mechanical books. when i go home, i study techniques and ways i can master my job. i want to be the best.

i love strategy games. it gives me a high trying to out smart the opponent.

i don’t desire socialization. but, at work, can be the “popular” one. when offered to party or go out for drinks, i politely decline.

i have 3 girlfriends. i tell myself – i will let them prove to me how much they deserve me, but, i kind of like the suspense.

i don’t really feel emotion. i can’t love. but i can sure show it, but, i will never feel it.

admin answers:

No your kind of the opposite just sociologically Intelligent lol. Sociopaths will use the weaknesses of others for their own benefit, and look like their helping the person in the process. Having the ability is one thing but putting it to use is another.

William asks…

Should I attend school to be a wind tubine technician?

I have just finished 8 years in the army and really don’t have any life skills that can put me to work. I am trying to find a good paying job that allows me to use my brain and my hands. There is a school in Vancover Washington called the Northwest Renewable Energy Institute. The school is 6 months long and cost 12,000 to attend, which most of it will be paid for in full. Does anyone know about this school or does anyone know what it’s like to be a wind turbine technician. How much do they make? Any advice about this school or the industy would be helpful. Thanks in advance!!!!!

admin answers:

Well, almost any education is always a bonus, in UK salaries in wind energy sector for experienced wind turbine technicians are around $50000 per year.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators

Mandy asks…

Can solar panel and wind turbine generator system run continuously for 6 month or longer?

I am planning on building a solar panel and a wind turbine that run in one generator. I just want to know if the generator can run for 6 month straight or longer? Anyone with some advices I would appreciated.

admin answers:

Well unless you have daylight and wind continuously for 6 months the answer is no.

Ruth asks…

How to build up a small wind power generator for home?

Hi all,
I want to build u an average sized wind turbine generator (about 1 Meter each Wing Size). so that i can get electricity for my home based appliances such as TV, AC, Refrigerators, etc.

What would be the requirements.. so i need to take any statutory approvals / license to do so,, and how to give input to my main Line into the home.

thanks to all in advance

admin answers:

First thing: Is this going to be a temporary source (in case of a power cut) or a more permanent source.

Because it will be an extension to your house, you might need planning permission. You have a certain ‘amount’ you can build on without permission, so if you haven’t used it, nor has a previous owner, than you can build it with permission. You can check this by going to your council.

Powered by Yahoo! Answers

Your Questions About Wind Turbines Colorado

Laura asks…

Should the brightest mind in the world be focusing on solving the pollution problems?

With all the health issue’s tied to smog and the eviromental impact from smog, Shouldn’t we be making this the highest priority to fix? Many of you may not know about the seriousness of the pollution from coal burning plants and we have solutions to fix it but it is moving slow also the burning of petroleum fuels should be fazed out the sooner the better because they just can’t be made clean. All this pollution ends up in the ditches then streams then rivers and lakes and it doesn’t have to be that way. If we have the solutions then why not move on to the future and live in a cleaner world?

admin answers:

There are many very brilliant people working on many different aspects of “green” technology. Solar energy and biofuel research has been going on since the ’70s (although poorly funded from mid ’90s till recently). There is a national lab dedicated to renewable energy in Colorado ( and other national labs like Sandia and Oak Ridge also do research related to greentech.

There is also a very large new center opening at Berkeley called the “Energy Biosciences Institute” which is partially funded by BP. Contrary to the previous response, ignoring the environment is only in the short-term interests of corporations. In the long term, even they need to be concerned about the problems that have been building, and some of those with more forsight are beginning to take the lead in putting more capital behind greentech – it is in fact, a great business opportunity.

The problem is that solving these problems isn’t like a moon-shot. We can’t put tons of resources into a single program and expect it to find “the answer” to pollution. We need renewable plastics, green chemistry, improved agriculture practices, biofuels, thin-film solar, blades for wind turbines, more efficient engines/turbines, lightweight materials, redesigned transportation infrastructure, better power grids, eco-friendly architecture, AND ways to retrofit all the fancy new stuff into our current reality.

Maria asks…

Do you think all new build houses should have solar panels fitted?

Don’t you think it would be a good idea if the Government made it compulsory to have all new build houses fitted with solar panels? If everyone had solar panels, the price of them would come right down.
What do you think?

admin answers:


Simply, not every house will be a compatible match for solar.

Solar needs sunlight. If a roof surface is not in the correct 40 degree sun path facing magnetic south, then modifications have to be made to build up and angle panels so they do. This can cost more than the energy ever produced for the home. That is an unfair burden to add those costs to that homeowner. The ideal home will face south with a 40 degree pitch to the roof. Can you imagine every house from here forward with a plain gable roof all faced south?

In addition, trees could become an obstruction. Planting designs would have to eliminate any tree that would grow higher than roofline and shade the panel array. Passive solar methods like tree lines have been used for years to help summer cooling costs.

Geothermal systems are working very well in Colorado which suffers severe weather mood swings between hot and cold. A new energy efficient home built in the foot hills just proved its capabilities. The annual heating costs for this 2000 sq foot home was $34.00. Yes, $34.00 for the entire year. That system also heats the water used to bathe and shower in.

The cost of that system paid for itself in the first 2 years making this one of the best investments on the market. I say skip the stock market! Homes, including those in the City, can be designed with either a horizontal or vertical system.

Eastern Colorado is finding great success with small wind turbines making them more affordable than a typical solar panel array.

At this point, no, I don’t see this becoming a mandatory situation. But, the solar manufacturers have been supported and are working for grid autonomy meaning the panels should be as cost effective to install as hooking up to your local power. The solar industry knows it has to become more competitive. It’s very survival depends on it and we are already seeing drops in pricing.

Let me point out that Solar is still a good return on investment “for the right house”.

The energy efficiency approach is based on Best Practice. That means, one system like solar will not work as the solution for everyone. Building codes like plumbing and sanitary systems are because of safety and health reasons but they dont mandate this product or that product. Just that the products must be safety tested to meet certain standards. They do mandate that solar follow NFPA and NEC codes (National Fire Protection Association and National Electric Code) and be installed by a Master Electrician… Again for safety reasons. Geothermal be installed by a licensed Master HVAC and a Certified driller. For, you got it, safety reasons.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators For Home

David asks…

How much power is required to power a large family home?

I am doing some research into setting up a wind turbine for my house. I see terms like ‘kW hours’ for energy or power consumption. If my house uses 1500kW hours of energy per week does this mean i need to run a 1500kW generator for 1 hour to satisfy my power needs?

How would i then go about sizing the required turbine needed to effectively power my home?

This is all new to me so i can see alot of follow up questions coming/

admin answers:

In terms of system design, you need to consider the load imposed on the supply. In your question you mentioned a figure of 1500 kWh per week. This seems very high. It represents an average of 35 amps being drawn from the supply 24/7.

I have a 4 bedroom house occupied by 2 adults and the minimum load, during the night falls to 0.8 Amps and peaks on some days to around 18 Amps for very short periods, the average through the day is about 2 Amps.

One kW represents a load on the supply of about 4 amps for 240 volt supplies and about 8 on 120 volt supplies Understanding the load that is being imposed on the supply will help you to decide the dimensions of the system you need.

For local power generation (micro generation) you can use wind or water turbines dependant upon location, and you can also use peizo electric generation (solar cells), all these are referred to as primary power. In addition to this you will need storage which is in the form of batteries.

To use the battery power you will need an inverter, which generates power at mains voltage from the low voltage batteries. Additionally you will need a regulator, which controls the charge/discharge of the batteries, and is essential for efficient battery use and economical battery life.

If your system is capable of generating power surplus to your requirements, you can sell this to your grid supplier for quite a reasonable return.

Paul asks…

Is it true that wind turbines can never produce enough energy in their lifespans to offset its creation?

I’ve heard on several occasions that wind turbines are not economically feasible because it takes an inordinate amount of time and money, such that it will never produce enough energy to recoup that which was lost in building the turbine. Is this true? Can anyone give me a source?

admin answers:

Hey Patrick, this concept has been around since about 1998 when it first surfaced in regard to solar panels. There was a lot of complaints that solar panels never earn back their, “Embodied Energy,” which is a phrase referring to how much energy it takes to mine raw materials, ship them to a factory, build the product, ship it to it’s destination and install it. To be honest, it is difficult to put an exact energy price on something like that, there are almost limitless variables, such as which mine was used, where it was shipped, how it is installed and used in the end, and so on. A non profit group called, Solar Energy International finally offered some grants to a few colleges to research this. In the end, they couldn’t come up with an exact timeline, but a range based on the above variables.

First of all, solar panels actually do repay their embodied energy some time between 1.5 and 6 years after they are installed. Virtually all manufacturers warranty their product to last at least 25 years, and typically they operate well beyond this time. Similar work was done later with wind turbines, and the results are very similar. The main difference being the range of payback time is wider, meaning it’s possible for a turbine to repay its embodied energy faster, like in less than a year, but it may take as long as 9 years. This is because shipping a utility sized wind turbine can take a huge bite into its embodied energy budget depending on how far it has to go. Solar panels can fit in the back seat of a good sized car, some wind turbines have specially designed hauling vehicles that might have to drive across the country, or across the street. But when you look deeper down this rabbit hole, you eventually learn that non of this matters, I’ll explain.

Electricity has been around since Thomas Edison nearly burned down his house running high amounts of current through bailing wires inside old mason jars, so it isn’t going away anytime soon. The question becomes, “What is the best way to produce it?” Let’s assume you build a 10 KW wind turbine, and put it alongside an efficient conventional power source, say a natural gas fired turbine 10 KW generator. Which will earn back its embodied energy faster? The answer is the gas generator never does. You have to remember that once you build a natural gas generator, coal plant, or any other non renewable energy based power plant, you now have to feed it fuel for the rest of it’s life. It’s conversion rate will always be something below 100%, so in the end it slowly digs itself a deeper and deeper energy hole that it can never crawl out of. At least the wind turbine has a chance to get even in it’s lifetime. This is the key to what makes renewable energy so great, it’s really the difference between buying a home and renting an apartment, one day the home will be paid off, the apartment never is.

We live in a home that is powered by the wind and sun today. About 12 years ago we started looking into solar and wind when our electricity was constantly going out. It began as a small backup plan, just to run a few lights and some electronics. Over time it became more of a hobby and lifestyle, like growing your own tomatoes instead of buying them at the store, we just grew electrons in our garden. Now our home generates over 90% of its own electricity, and we use the power company as our backup source. Even though it will take years to get even with the power bill, it’s worth it to us, and we’ve turned a lot of heads. Once each year now I am invited to the local schools to teach solar power to the 5th graders, then they run a field trip out to our house to see a working solar and wind powered home. Since then the power companies have been busy building wind farms and looking into solar, geothermal and biomass energy. They even have a methane plant alongside a landfill in the next county. Most people are not aware of these things, but they are happening. They are busy complaining about wind mills never earning back their manufacturing energy, solar being too expensive, or hybrid cars not really saving and gas. There is research on these subjects, and it’s available for the asking if you look for it online. My suggestion is you look into it and become better informed insteading of asking hacks like me online for advice. I’ll include some sources below. Hope this answers your question. Good luck Patrick, and take care, Rudydoo

Powered by Yahoo! Answers

Your Questions About Wind Turbine Cost

Lizzie asks…

What’s your response to a wind turbine company marketing only in blue states?

Madison-Green Technologies, a startup firm in upstate, New York is currently working on something called the “Model 10” wind turbine, a device which is designed to be a low cost point of access for those who wish to get started with alternative energy. The wind turbine kits, which cost under $1000 are designed to produce 130 kilowatt-hours of electricity per month when placed in an area with exposure to a 10 mph prevailing wind. 130 kilowatt-hours is roughly 10% of the average American consumers electricity usage per month, and is closer to 20% of the average users tally in Northeastern states where air-conditioning usage is lower and many homes use heating-oil or natural gas furnaces.

In an interesting twist, the company founders are using the 2012 electoral map to focus their marketing efforts, and will focus on those states where President Obama won by the largest margin. “We know that just because we’re a green technology company that FOX News and Newsmax will do everything they can to convince conservatives that we’re evil incarnate,” said one company founder. If someone lives in a Red state and they want to purchase one of our units via our website they can but we aren’t going to waste our time developing any storefronts or looking for partnerships with contractors to install the units in any of the states where Romney won,” he continued.

What’s your response to green energy company like Madison-Green Technologies using the 2012 electoral map to focus their marketing efforts?
Alan, they said people can still purchase the units and they’ll ship to a red state, but people in those states are on their own from that point. They have to install it themselves or find their own contractor to do the work.

admin answers:

I don’t know if it’s such a smart marketing plan. Wouldn’t it make more sense to develop storefronts and partnerships in those areas of the country with exposure to a 10 MPH or greater prevailing wind? I think the pitch should differ in red and blue states, however. In a blue state saving money on your energy bill WHILE reducing carbon emissions that cause climate change AND putting contractors to work, which pumps money into the local economy, is a pitch that makes sense especially if there is also a local bank willing to provide affordable financing. In a red state you simply want to point out the cost savings, ease of financing and collateral benefits to the local economy.

That’s my response.

Out of Afghanistan in 2013!

Mary asks…

How much do wind turbines cost?

roughly how much do the huge wind turbines cost that are put on wind farms? thanks 🙂

admin answers:

A small turbine can cost anywhere from $6,000 to $22,000 installed, depending upon size.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators Manufacturers

Maria asks…

Who is a manufacturer of a small generator that can fit inside of a small wind turbine?

Any help is very appreciated. I’m looking any manufacturer EXCEPT ones in China, which may be a kind of picky exception, hahaha.
Thank you

admin answers:

Try looking on
Would an automotive alternator do ? THey would have the advantage that, being mass produced, they would be cheap. Also spare parts would be available through a huge supply chain, parts stocked on someone else’s inventory cost….

Steven asks…

How do you measure windmill efficiency without using a generator?

Is there a formula I can use to convert the number of the windmill’s rotations into watts or some other measurement? I’m doing a science fair project about windmills and I don’t have a generator I can use to measure the amount of electricity produced. The only formula I found is watts = (Kh x number of disk rotations x 3600) / number of seconds, but I don’t have the Kh.

I’m really confused, please help!

admin answers:

Go look at for general info on turbines.
Unless you know the specific turbine manufacturer and model, it will be very difficult to relate turbine speed (in rpm) to power produced.

Besides, how do you expect to relate rotational speed to efficiency?
Efficiency is Output electrical power divided by Input wind power.

Perhaps you should look at the capacity factor of wind turbines, and the resulting relative cost of electric power as it relates to capacity factor.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Manufacturers

Lisa asks…

How can I make a composite material to build wind turbines with recycled material?

My father and his friends are trying to start a buisness building wind turbines, and we have been trying to figure out a good material to make them out of, that we can use recycled material Eg. milk jugs, cans, etc.
We have almost every resource you can think of and lots of different machines to work with. Cranes, everything.

Any suggestions would be very helpful, the reason they’re doing this is because they are being laid off as millwrights.

admin answers:

Its so hard to find good materials for wind turbines. Manufacturers of wind turbines use very specific materials. But if you want to build one for you from recycled materials, its good but efficiency of turbine will be very small. I build one wind turbine from plastic pipe :

You can take some ideas from this site

Best Regards and i wish you good luck in work.

Carol asks…

What companies hire to build wind turbines?

My husband wants to find companies who hire for building wind turbines. We realize that the best people to talk to are subcontractors, but I have searched all over the internet, and I can’t find any jobs. I know that Iowa has a project going on now, but we can’t find who is hiring. Also, my husband has been in many phases of construction, but he has zero experience in this area. He would like to learn, however, so who would he talk to?

admin answers:

Here are lists of companies that are active in this area. Check their web pages and look for a personal page or a human resource page.


Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators Australia

Mark asks…

how is using energy resources in Antarctica important?

admin answers:

The Australian Antarctic Division (AAD) received a grant of half a million dollars from the Australian Greenhouse Office to demonstrate the use of hydrogen generated by wind in Antarctica. The demonstration project at the remote Mawson site will research the safety and operational aspects of using hydrogen on station, as well as its viability as a major energy carrier.

Hydrogen is not, as many people believe, an energy source. Neither is electricity. In contemporary energy systems, electricity serves as an energy carrier. It is produced from primary energy sources using technology such as diesel powered generators or wind turbines. It is the same case with hydrogen.

Hydrogen will be generated using energy from the Mawson station’s wind turbines, stored and used in a test fuel cell, as fuel in a heater and in one of the station vehicles. Two Enercon wind turbines, capable of withstanding blizzards in excess of 300 km/h, were recently installed. Together, the units provide one MW of electricity for use at the research station and for the hydrogen project — and dramatically lower the need for imported diesel fuel.

“The Mawson system will generate well over ten times the power of existing Antarctic wind-power systems while having a much lower environmental impact than the current option of diesel fuel now used throughout Antarctica,” said Australia’s Environment Minister Robert Hill, regarding the wind turbine construction. “When the system is fully developed, an Antarctic station will, for the first time, be able to use a renewable source to meet virtually all its energy needs.”

For the upcoming hydrogen demonstration project, the AAD plans to install the test fuel cell and heater at the field camp on Bechervaise Island. They will provide electricity and heat for the scientists involved in the penguin monitoring program.

By the completion of the project, the staff at AAD expects to gain sufficient information to be able to model the large-scale use of hydrogen to supplement their energy requirements.

Hydrogen used by the Bureau of Meteorology staff for daily weather balloon flights is currently generated on site. Electrolyzers, powered in part by wind energy, produce hydrogen from water. Any excess hydrogen produced will be stored and utilized for the project. The system will be installed and implemented during the 2005-06 season.

The AAD expects that the use of hydrogen as a fuel will reduce the need for fossil fuels during those times when the wind energy is insufficient to power the station. The hydrogen will fuel either a large-scale fuel cell system or an internal combustion engine generator.

The ultimate aim is to be able to run the station and all the field camps without the use of any fossil fuels. The AAD believes this may be the first attempt to use hydrogen as a major energy source in Antarctica.

John asks…

How does tidal power work?

admin answers:

Tidal power is the only form of energy which derives directly from the relative motions of the Earth–Moon system, and to a lesser extent from the Earth–Sun system. The tidal forces produced by the Moon and Sun, in combination with Earth’s rotation, are responsible for the generation of the tides. Other sources of energy originate directly or indirectly from the Sun, including fossil fuels, conventional hydroelectric, wind, biofuels, wave power and solar. Nuclear is derived using radioactive material from the Earth, geothermal power uses the heat of magma below the Earth’s crust, which comes from radioactive decay.
Variation of tides over a day

Tidal energy is generated by the relative motion of the Earth, Sun and the Moon, which interact via gravitational forces. Periodic changes of water levels, and associated tidal currents, are due to the gravitational attraction by the Sun and Moon. The magnitude of the tide at a location is the result of the changing positions of the Moon and Sun relative to the Earth, the effects of Earth rotation, and the local shape of the sea floor and coastlines.

Because the Earth’s tides are caused by the tidal forces due to gravitational interaction with the Moon and Sun, and the Earth’s rotation, tidal power is practically inexhaustible and classified as a renewable energy source.

A tidal energy generator uses this phenomenon to generate energy. The stronger the tide, either in water level height or tidal current velocities, the greater the potential for tidal energy generation.

Tidal movement causes a continual loss of mechanical energy in the Earth–Moon system due to pumping of water through the natural restrictions around coastlines, and due to viscous dissipation at the seabed and in turbulence. This loss of energy has caused the rotation of the Earth to slow in the 4.5 billion years since formation. During the last 620 million years the period of rotation has increased from 21.9 hours to the 24 hours[3] we see now; in this period the Earth has lost 17% of its rotational energy. While tidal power may take additional energy from the system, increasing the rate of slowdown, the effect would be noticable over millions of years only, thus being negligable.

Types of Tidal Energy
Tidal power can be classified into two main types:

* Tidal stream systems make use of the kinetic energy of moving water to power turbines, in a similar way to windmills that use moving air. This method is gaining in popularity because of the lower cost and lower ecological impact compared to barrages.

* Barrages make use of the potential energy in the difference in height (or head) between high and low tides. Barrages are essentially dams across the full width of a tidal estuary, and suffer from very high civil infrastructure costs, a worldwide shortage of viable sites, and environmental issues.

* Tidal lagoons, are similar to barrages, but can be constructed as self contained structures, not fully across an estuary, and are claimed to incur much lower cost and impact overall. Furthermore they can be configured to generate continuously which is not the case with barrages.

Modern advances in turbine technology may eventually see large amounts of power generated from the ocean, especially tidal currents using the tidal stream designs but also from the major thermal current systems such as the Gulf Stream, which is covered by the more general term marine current power. Tidal stream turbines may be arrayed in high-velocity areas where natural tidal current flows are concentrated such as the west and east coasts of Canada, the Strait of Gibraltar, the Bosporus, and numerous sites in south east Asia and Australia. Such flows occur almost anywhere where there are entrances to bays and rivers, or between land masses where water currents are concentrated.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Technician Jobs

Sharon asks…

what industry has more growing jobs and is growing faster?? wind turbines or solar panels?

I wanted to get training as a wind turbine technician but i’m wondering if maybe a job in solar panels is a better choice. And I live in southern california.

admin answers:

Firstly, your very lucky there in california as either way would actually be pretty good.

Solar will be bigger than wind for many years to come as there are many more companies investing in solar panels as they require a lot less maintenance. This could be a good reason to go into wind, More money, less work. Being in california you may have enough work either way. Maybe do both? Might sound weird but there are many companies employing people that know about both. Solar companies that want to expand into wind but cant afford 2 experts might want a join expert.

Linda asks…

What are some high paying jobs with dangerous aspects? (Fearsome aspects, fear, potential danger, etc)?

Long ago I discovered the job “Wind Turbine technician“, which basically involves greasing the turbines and perform regular maintainence while receiving 14-25 dollars an hour. The job doesn’t seem too rigerous, but the fact is that these technicians operate from a terrifying hight which intimidated the reporter interviewing the technician. Obviously the job requires additional education, but even with that aspect there isn’t any availability in my state.

I’m not sure what the term is for these types of jobs, but it seems very appealing to me

admin answers:

Dangerous jobs include working on our power-line workers, crab fishing, timber cutter (lumberjack), structural metal workers, farmers and ranchers, miners, roofers, truck drivers, and fishermen. This is a list of careers that record the most fatalities annually and they all pay more than average because of that.

Powered by Yahoo! Answers

Your Questions About Wind Turbine Generators Types

Donald asks…

what are different types of wind generators?

i am looking forward all kinds of generators which can be used in wind turbine(wind farms).
i search about real types and industrial of generators, not mankinds or labratoars ones.
thank you

admin answers:

Induction generators are used for stand alone systems, synchrounous generators could be used as well.

Susan asks…

How would you calculate the theoretical power output of a Savonius wind turbine?

I built a small scale Savonius style wind turbine for a project. I can easily measure the power it puts out in a wind tunnel using a wattmeter, but how would I calculate the theoretical maximum power output? I want to use these two values to find the turbine‘s efficiency. Thanks!

admin answers:

Hey Drew, Gatorbait is on the right track, but the formulas in Mr. Voneshen’s publication cannot be used for a savonius turbine.

First, the actual formula originally derived by Albert Betz was this:

P = .5 X rho X A X V^3

P is power in watts
rho is the air density in kg / cubic meter
A is the swept area in square meters
V is the velocity in m/s, which is cubed to get the final power.

This is the actual formula to find theoretical power available in a moving column of air. There are lots of hybrid formulas, such as the one Gatorbait references. Mr. Voneschen’s instructions use one that takes air density at sea level times one half, then converts it to a constant to adjust for the fact that he is using Diameter instead of swept Area. That’s fine, as long as you are using a horizontal turbine. With a vertical, or savonius, the diameter means nothing, because the area can be changed dramatically with a taller or shorter barrel. It is the area of the rotor that the wind sees that must be used for power calculations. Once Mr. Voneschen finishes his discussion, showing a diagram of a horizontal turbine, he then goes on to show you how to build a vertical one, so the hybrid formula no longer applies.

The other problem is the efficiency he is using. The best modern turbines that science can build today run in the 25 to 35 % efficiency range, and they are all horizontal. Albert Betz correctly calculated that the best ideal efficiency any turbine could ever reach is a theoretical limit of 59%. The horizontal types have horrible efficiencies, generally in the 5 to 8 % range. The reason for this is that most of the torque developed by the downwind blade is used to push the upwind blade back into positon, so very little is left to actually push the generator. It is this reason that no commercial applications of these devices are built today. I think Savonius rotors are neat, as do most of creation, but besides turning a wind chime in the garden, or running a small pond pump, they can’t really do anything for us. In Mr. Voneschen’s instructions, he is using 50% as the “rough” efficiency of the home made barrel rotor. Even the very best horizontal units today do not come close to this level of efficiency, a good quality well engineered savonius rotor won’t be within one tenth of this level.

We’ve been powering our home for 11 years now with the wind and sun, and the last 5 years or so I’ve been teaching renewable energy seminars in the local schools. In my experience, there are two things in vast supply when you get into wind power, wind, and missinformation. My suggestion is to go to the source and don’t waste your time asking questions to hacks like me online. When your turbine is finished, if you can get it to run well in a wind tunnel, get some good watt readings, then go to the American Wind Energy Associations website and do your calculations for theoretical power available, and it will be simple math to come up with your efficiency. Don’t be dissapointed by the results, if you can reach 3 or 4 %, you’re doing really well. Take care Drew, Rudydoo

Powered by Yahoo! Answers

Your Questions About Wind Turbine Syndrome

Carol asks…

After seeing videos like these, do you still think more wind turbines are a good idea?

Or are they still good until they are brought into your own neighborhood?

Headaches, dizziness and nausea cause by the unnatural “flicker effect” of the giant shadows cast by the giant turbine propellers:

People being forced out of their homes because of health health problems cause by “wind turbine syndrome” caused by the flickering, EMF energy pollution emitted, noise, and vibrations.

Maybe I’m more sensitive than some, but even seeing videos of wind tubines spinning and causing blinking lights makes me sick.

admin answers:

The flicker effect is annoying. Maybe the agw socialist hippies would like to live in the shadows of wind turbines because they’re a bit like disco strobe-lights. They’re already dizzy and nauseous in promoting global warming.

Seriously, wind turbines have a role to play in isolated areas where generating power is a problem. But they’re expansive, expensive, ugly on any landscape, noisy and only work when there’s enough wind to make them turn. The idea of building them to power large communities is scary, and now apparently they lead to health problems. My opinion is to use them only where other power sources aren’t practical/possible.

Jenny asks…

After seeing videos like these, do you still think more wind turbines are a good idea?

Or are they still good until they are brought into your own neighborhood?

Headaches, dizziness and nausea cause by the unnatural “flicker effect” of the giant shadows cast by the giant turbine propellers:

People being forced out of their homes because of health health problems cause by “wind turbine syndrome” caused by the flickering, EMF energy pollution emitted, noise, and vibrations.

I’ve seen a lot of electrical plants and I would rather live near one of those if I had to choose. Seeing these giant EMF towers with their spinning propellers makes me sick, don’t they make you sick too?
It Girl: I agree–when you look at them they stand out as not belonging there. As being unhealthy and unnatural.
piegowdealer: The third video is in the US–Oregon.
And I’m not against clean energy at all–I still think electric cars are a good idea. I just think fake “clean energy” schemes/scams are bad ideas and bad for our health.

admin answers:

Hmm…strange, because we have wind farms where I am and I have not heard of this. At all. I have not felt massive vibrations, I have never seen shadows that large cast anywhere near residential housing, and I know of no animals who have suffered dangerous reactions to the stimuli. I have never experienced hearing much noise from them either. It isn’t like you can compare a wind farm with an international airport, a train station, a bus depot, a nuclear energy plant, an oil rig, a coal processing plant, a shooting range, a major waterway, a large city (more than a million), barges, lock and dams, a major grain plant, rendering plant, hog or chicken farm, or distillery (they all smell to high heaven) or even a military base where they set off ammunition–all of these are way worse (trust me–I have lived near all of these items at some time or another in my life).

If you do not trust my accute assessment (since I am not a scientist or an energy advocate of any kind), then try reading up on the views of wind energy from communities that have lived with it for many years. You will find that the level of satisfaction in this method of energy production is superior to that of energy created by other methods. Not everything you see on youtube can be trusted as comnplete fact–if you believe everything you see on there, then I would be worried. As for them not being attractive…well, not everything can be aesthetically pleasing, now can it. If you can’t seem to live near it, then move–people do it every day, especially when they live near noisy or obstructive things (airports are a great example). Otherwise, get over it–unless we want to spend billions of dollars in solar panels, or geo-thermal energy systems, this is one of the cleanest energy solutions we have available.

Powered by Yahoo! Answers