Wind Power

Michael asks…

Is overall wind power a positive or negative impact on the environment?

I know that there are many advantages but also disadvantages of wind power, but overall would it help our environment?

Windmill Farms answers:

Wind power is having a positive impact, at this point, on manufacturing, and definitley on employment. In the country, farmers/ranchers are enjoying monthly/yearly income with the installation of these wind generators on their properrty. A good thing. Power transmission lines need to be installed to get the power distributed to wherre it can be consumed, again providing job opportunities. One bit of concern, are migrating birds, such as ducks, geese, an cranes going to be decimated in numbers if they fly into the rotating blades, possibly. It will take years and years of construction of wind generated power to fulfill our needs at current levels of power consumption. Therefore, coal, water, natural gas, and nuclear will continue to dominate the power scene.

Maria asks…

Is wind power generator at home really work ?

I heard about wind power generator and I want to make a wind power generator to power things in my house. Although I am not sure where to find good information. I want to save money. Is there any reliable information on how to make wind power generator at home?

Windmill Farms answers:

I made mine wind power generator and its saving me some good money :) I use it to power various things inside and outside my house. I found the best source of info for this at:

Joseph asks…

What is the Importance of having wind power in Quebec?

I know that Quebec is starting to use tons of wind power but… What is the Importance of having wind power in Quebec?

Windmill Farms answers:

Wind power is a renewable resource. It can be used as an alternative to coal, hydro power (pollution), and oil. However, wind power is more expensive to produce.

Sandra asks…

What tax advantages are there for using wind power and what speeds are required?

Are there U.S. federal tax advantages or rebates for using wind power? Does Illinois have tax advantages or rebates for using wind power? What are the required average wind speeds for Chicago and other areas to successfully use wind power?

Windmill Farms answers:

9MPH for sustainable electricity generation.(low wattage production at that speed) US government currently offers tax incentives for eco-friendly conversions like wind generation or solar power. However last I knew there was a cap of 2000 dollars. As a republican can I just say Thanks for nuttin George. I’ve got your rebate right here! Some lenders have special programs to help you set up a system with lower interest rates you may want to see if there are any “Green” credit unions or co-ops that lend. Join one and go from there

Steven asks…

How much Does it Cost for Wind power at your home?

I want to know the prices to fully power a Normal sized Home.

And smaller sized Wind Power.

Windmill Farms answers:

Hey Kim, I’ll take a stab at your question. Bill is probably pretty close to the bullseye here, but your question is really more nebulous than you think. If I asked you, “How much gas does a car need?” What would be your answer? 200 gallons? You might ask me how many miles I drive, or what size car I need, or your answer might be a rate, like 1 gallon for every 30 miles I drive. You really can’t quantify it beyond that.

Our home used to be like most other homes, it is small, at 1200 square feet, but used around 30 to 40 dollars a month in electricity. Since then we have installed a 900 watt wind turbine and a 1.4 kw solar array. Now my electric bills are around $5 per month. The rates have gone up in the last 10 years, and we have made efficiency improvements along the way. Since then we have had two children, so our usage has been a roller coaster all these years. What I’m getting at is that there is no, “Normal sized house.” Here is an interesting rule of thumb I heard in our travels in renewable energy. Take your monthly electric bill and multiply it by 250. This might be the cost to install a wind and solar system to make about the same electricity you use today. If your bill is $50 per month like ours used to be, you’ll need about $12,500 in equipment. Oddly enough, by doing some of the work ourselves 11 years ago, our total bill was just over $13,000. If you pay $200 per month for electricity, then you’ll need $50,000 for your system.

You can also work the problem backward pretty easily, and see that if it takes the equivalent of 250 months in electric bills to pay off your equipment, then the payback time is probably 20 years, give or take a bit. In a nutshell, it isn’t worth the trouble for most people to make a change to their home, or their lifestyles, since you’d be farther ahead financially by investing your money someplace and having it double in 20 years instead of breaking even, but I suppose that depends on how you feel about the stock market. There is the fact that our home has not been without power for even one minute the last 11 years now, not sure how much that is worth to you. There is also the environmental benefits of solar and wind power, which for some reason have become quite controversial. Buying coal for the purpose of lighting it on fire to make electricity makes about as much sense as smoking a cigarette for taste, still, millions of educated people smoke.

There are some pretty good places to get more information on the subject, I’ll list some below. One thing I’ve learned over the years in this business, is that there are two things in vast supply in wind energy, wind, and missinformation. If you’re really trying to make a decision on this, I’d check out the sources below and forget asking hacks like us online for advice. In the end you might decide not to get involved, and that’s fine, but at least you will be well informed. Take care Kim, Rudydoo

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Vertical Wind Power Systems

Lizzie asks…

What do you think about this newly patented vertical windmil?

Millwind is:

A newly patented vertical windmill.

A new way of looking at the wind.

A sculpture that captures the wind.

Protects itself from extreme weather by rotating into a closed shape.

An efficient design with few moving parts which increases its dependability and ease of maintenance.

A low noise windmill.

Operates in turbulent air around buildings and trees.

Ideally suited for urban and rural areas.

Generates electricity which can be stored in batteries.

Generates electricity for replacement of kerosene lighting in the third world countries.

Powers ultra violet water purification systems to supply clean drinking water to third world countries.

Windmill Farms answers:

Well it looks like a smart design. I wish the website had some information about how much energy the Milwind generates.

John asks…

I Need Straight Answers on Solar Power?

Where can I get cost information on roof mounted photo voltaic cells and water-to-air heat pumps and associated vertical loop systems? I need to know the cost of this equipment and their installation if I am to try and sell the idea of putting them on my ranch-style townhouse to the neighborhood association. Also, I need to know how resistant photo voltaic arrays are to high winds, hail, ice, and snow since I live Nebraska. Furthermore, I need to know if I can afford this equipment since I am an environmental lab technician who ended up in the food processing business.

Windmill Farms answers:


George asks…

What is the minimum horsepower necessary to move a 1000 pound motorcycle+rider up a 5% grade at 25 MPH?

Trying to figure out how much engine I need when purchasing first motorcycle.

Windmill Farms answers:

It’s not too difficult to calculate the ideal power needed to meet your needs. The real problem is trying to figure out what size engine it takes to deliver that much power. The power of an engine may be measured or estimated at several points from its generation to its application. U.S. Automakers began to quote power in terms of SAE net horsepower in accord with SAE standard J1349 in 1971-72. SAE Net hp is measured at the engine’s crankshaft, and so does not account for transmission losses. However, the SAE net power testing protocol calls for standard production-type belt-driven accessories, air cleaner, emission controls, exhaust system, and other power-consuming accessories. This produces ratings in closer alignment with the power produced by the engine as it is actually configured and sold. Loss in power is also caused by the gearbox, alternator, differential, water pump, and other auxiliary components such as power steering pump, muffled exhaust system, and not to mention wind and tire resistance. Search for “motorcycle rear wheel horsepower” to find websites that might help you out.

That being said, the theoretical (frictionless) power is work per time. Since work is force x distance we have: P = F*d/T, where force is the total weight and distance is vertical. So in an hour, you travel 25 miles by road but at 5% grade (2.86°) that is only 6592 vertical feet. So we have:
P = F*d/T
P = (1000)(6592)/(3600) = 1831 lb-ft/s = 3.33 hp

David asks…

Does this look “clean” to you?

I am sick of the ad campaigns pushing for more “clean coal” technology. This is is the irrefutable reply to such nonsense. Coal is the past, clean energy is the future. The longer we think we can improve current technology of fossil fuel burning, the more time we waste that could be spent establishing more wind and solar energy plants, the REAL clean energies.

Windmill Farms answers:

Yeah it’s a mess. Kind of looks like Valdez Alaska, San Fransisco bay or Newport beach Ca. After their oil spill. Coal is Clean because more than half the power plant site is a scrubber, that removes all the fly ash, what broke loose from the retaining pond. They also have a stage for carbon sequestering. But your right it’s still not Truly clean compared to solar and wind but to come even close to our needs everyone needs to install photo panels on their house as well as small wind turbines. So in effect each house has it’s own power plant which is what Thomas Edison originally envisioned, problem is YOU are responsible for your own installation and maintenance cost.
I have 10kw photo cells on the south roof of my house as well as 4 vertical axis wind turbines on the roof of my garage as a supplement system to offset my utility bill but I’m also a mechanical engineer and built and maintain them myself and from surplus material. But I’m also one of only 2 in a 50 mile radius doing this.

Michael asks…

what is the best thing to use to replace?

the centre part of a broken gammor rod

Windmill Farms answers:

Not sure which part of the aerial your asking about,
Electrical Data
• Type: 7/8 ? Coaxial J-pole
• Frequency range: 26-28 MHz
• Impedance: 50? Unbalanced
• Radiation (H-plane): 360° omnidirectional
• Polarization: vertical
• Gain: 2 dBd, 4.15 dBi
• Bandwidth at S.W.R. 2:1: 1350 KHz
• S.W.R. At res. Freq.: ? 1.2:1
• Max. Power:
1000 Watts (CW) continuous
3000 Watts (CW) short time
• Feed system / position: Gamma match / base
• Connector: UHF-female

Mechanical Data
• Materials: Aluminium, Steel, Nylon
• Wind load / resistance: 329 N at 150 Km/h / 130 Km/h
• Wind surface: 0.29 m²
• Height (approx.): 9500 mm
• Weight (approx.): 4600 gr
• Mounting mast: Ø 35-42 mm

regards x kitti x

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Is Wind Power Actually Green

Sandy asks…

Are there any disadvantages to choosing wind power for our home as offered by our electric company?

Windmill Farms answers:

Good grief…the answers you have recieved thus far!

My husband works on the commercial wind turbines. Our power company also offers purchasing of the wind power, at an extra $4 per month charge. Something I find rather humorous, since my husband is actually employed to work on the wind turbines.

You will of course still have power if the wind is not blowing, or the wind farm is down for some sort of repair. You electric company will continue to provide you power, it will just come from another source. To think that the power company would leave you without power is just plain silly.

The modern commercial wind turbines DO NOT KILL BIRDS, as some people would have you believe. To put it simply, the blades are larger than they use to be (and more efficient) and spin at a much slower rate. The birds are well able to judge the speed of the wind turbines. Wind farms actually provide amazing wildlife habitat. Instead of becoming covered with sprawling housing developments, the land remains in tact, and the wildlife QUICKLY adapts to the turbines. I am quiet an avid lover of wildlife. I would be most distressed to see birds of prey, or migrating geese and swans killed by the turbines. This simply doe NOT happen.

If you are able to easily afford the extra money for the wind energy, then I would say go ahead. However, I would ask that your electric company provide an accounting of exactly how that money is being spent. If it is a stretch for your budget, or you are having financial problems, then forgo the extra money.

Supporting the wind turbines is wonderful. They provide wildlife habitat. They are a completely renewable recource, the very towers themselves, are highly recyclable when they have reached the end of their lifespan.

The wind turbines help suport people in rural areas with good paying jobs that are usually hard to come by. In turn this also helps support local businesses. Examples of that would be the local gentleman they employe at my husbands site to maintain the gravel roads, and to so snow removal. They paid him over $100K last year. The local fencing comapany they empoyed to put up strong gates to keep people off the landowners private land where the turbines sit (I forgot how much but it was expensive). The local radio rental company they are always renting radios from when crews come in for different projects. Usually $300 a month to the radio rental company.

The list goes on and on. Supporting the green energy of the wind turbines really is a win-win situation.

Homesteading/Farming over 20 years

Mark asks…

Really cheap on-grid power, completely diy?

So I’d love to become more green.

So far I’ve replaced a few appliances with energy star rated ones, regularly clean my washable A/C filter, use a programable thermostat, added recycled insulation, replaced all the light bulbs with compact flouresents.

I’ve done just about everything I can to save energy, but I’d really like to start producing energy. I can’t afford to spend 100s or 1000s of dollars on solar panels, wind turbines, fuel cells, etc… I am working on an HHO generator for my car, but I’d like to produce some on-grid power all DIY. Is that possible? I assume I could build something to generate wind power, but what about actually getting that little bit of power connected to my electrical system? If I could spend 100 bucks to save 5 or 10 a month, I’d be happy.

Windmill Farms answers:

It’s a nice idea to supplement your power, but connecting your own generation equipment to grid power is anything but DIY.

First, you must get permission from the power company to connect your own equipment to the grid. Before they will grant that permission, they will want to inspect your equipment and validate your installation. They will probably require it to be installed and connected by an electrician who has been licensed in some way to do this specific task. Also, they will probably want to see equipment made by a known and certified manufacturer.

Second, even if you “bypass” the legal requirements, grid power has a regulated voltage, frequency, and phase. Connecting your own equipment will require that you match that voltage, frequency, and phase. Unless you do that, bad things could (and probably would) happen. This is the reason for the first hurdle.

You can buy the power generation equipment to handle this: governors, and phase match devices. If using wind turbines, there are also special variable speed gensets. But this equipment is expensive. You are talking many (maybe tens of) thousands of dollars. A far cry from the few hundred you are looking to spend.

However, if you leave some things disconnected from the grid, then you could use your own genset for those, but you run into reliability issues.

Susan asks…

Are there any green job calculators anywhere??

salary calculators*

Windmill Farms answers:

Let me start off by saying we (my family and I) live completely, 100% “off of the grid and are completely self sufficient”

The house is built utilizing natures natural elements, in the shape of an octagon with 8ft wide arch doors on every wall to catch every angle of wind (typical 4 sided homes have half the chance as one with 8 sides. A circle being the most efficient design). Woodburning stoves, solar chimney, solar AC, solar heating, solar water heating (pool and home), solar stove, solar power, wind power, hydrogen powered back up generator, hydrogen back up water heater, hydrogen stove, 2 hydrogen powered trucks, 1 EV (electric vehicle) and satellite internet.

We also built many green small cabins on the ranch that we offer to family, friends and our on-site off-grid workshop guests, including one straw bale, one papercrete, earth bag and adobe, one cob and cordwood, one underground and rammed earth, one log and post and beam and one rock. Each one actually started as a test for what the main house would be and were later finished and turned into guest cabins. I later wrote a guide on how to build with alternative materials using alternative methods for next to nothing.

We raise meat and milk goats, chickens for meat and eggs, ducks for meat and eggs, trap havilina (wild boar pig), rabbit, quail. Brew our own beer from home grown products, preserve our fruits, vegetables, etc. Smoke and jerky the meat, make our own soap, cheese.

There are no utility lines, no water lines, no roads, tv, cell service, etc. On our ranch. EVERYTHING needed is produced here. All electricity comes from 27 solar panels, 2 main wind gens and a back hydrogen generator if needed (typically we can last 9 days with all luxuries of sunless windless weather, hasn’t happened yet). Water is caught and storaged from the rain. Hot water is made with solar batch water heaters with an on-demand hydrogen hot water heater as backup. Solar chimney, solar AC, solar heating, solar water heating (pool and home), solar stove, solar power, wind power, hydrogen powered back up generator, hydrogen back up water heater, hydrogen stove, 2 hydrogen powered trucks, 1 EV (electric vehicle) and satellite internet. Even our vehicles use alternative energy (2 hydrogen trucks, 1 EV electric vehicle converted). Because of this we have no bills, no debt and no mortgage.

Anyone interested can check it out at..

Www agua-luna com

I believe this is the first step anyone can make “help the environment”. Once you convert your own life style to a greener more eco friendly route, you can start helping others.

My home has all the comforts listed above plus some. We live very comfortable without effecting the environment. Just saying that tol et you know it’s possible. You may not want to go as extreme as me and my family but anywhere in between is something.

Without getting to in depth here, Using alternative fuels in your vehicles and harnessing your own electricity from the sun, water, earth and wind are the 2 are key elements in making a green transition and erasing your carbon footprint.

Here’s a calculator to find out how much of a green impact your making (carbon footprint)

if you’d like to make your next step feel free to contact me personally at www agua-luna com

I’ve been installing home made Solar panels. Solar stoves, Solar batch and inline hot water heaters. Solar radiant heating. Solar home heating and AC, along with home made wind gens and other alternative energy items for the last 3 years.

You can even make the above projects on site with simple parts from the local hardware stores or auto stores or junk yards. For more info check out some guides I wrote / compiled on how to DIY www agua-luna com

Again these projects can be accomplished anywhere by anyone.

If you absolutely can’t do anything in your home at least you can put alternative fuels in your car. Most major automotive manufacturers (Chrysler, Ford, and General Motors, etc) recommend the use of bio fuels, and nearly every car manufacturer in the world approves ethanol blends in their warranty coverage.

In fact your probably even driving an ethanol car and didn’t even know it.

The trick is finding fuel.

I’ve been producing biofuel for about 3 years now, it’s not extremely difficult. Basically you need general household ingredients, a processor (or still for ethanol) and some used oil. Blend it, let separate, screen and use. I complied a guide a while back to help walk you threw the process step by step, just email me or check out..

Www agua-luna com

as for recyling the best way i’ve found without taking money from your won pocket is to join a free freecycle group in your area or visit the habitat for humanity.

If you’d like help in making your self sufficient steps, feel free to contact me directly. I’ve written several how-to DIY guides available at www agua-luna com
on the subject. I also offer online and on-site workshops, seminars and internships to help others “help the environment”.

Hope this helped, feel free to contact me personally if you have any questions if you’d like assistance in making your first self sufficient steps, I’m willing to walk you step by step threw the process. I’ve written several how-to DIY guides available at www agua-luna com on the subject. I also offer online and on-site workshops, seminars and internships to help others help the environment.

Dan Martin
Alterative Energy / Sustainable Consultant, Living 100% on Alternative & Author of How One Simple Yet Incredibly Powerful Resource Is Transforming The Lives of Regular People From All Over The World… Instantly Elevating Their Income & Lowering Their Debt, While Saving The Environment by Using FREE ENERGY… All With Just One Click of A Mouse…For more info Visit:

www AGUA-LUNA com
Stop Global Warming,

Mary asks…

what would YOU have near you….wind turbines or nuclear reactor?

why are people so AGAINST wind turbines…they are NOISELESS,NICE TO LOOK AT,DON’T CONTRIBUTE TO GLOBAL WARMING,so whats the problem?is it a case of “not in my backyard”

Windmill Farms answers:

In a way, I have both near me. I live in the birthplace of nuclear energy (which is Idaho by the way, not Nevada). About 40 miles from me are a bunch of very small reactors used in the development of nuclear energy.

The site is called the INEEL, formerly the INL. A lot of Government work still goes on out there, but many of the reactors are being torn down. The land the INEEL sits on is of staggering huge size. It takes me over three hours just to drive half way around it. It takes up over 890 square miles of land. One of the world’s largest runways also exist out there, as it was to be another landing site for NASA space shuttles.

The land the INEEL sits on provides a much needed large piece of desert wildlife habitat. The sagebrush deserts are some of the fastest disapearing (subdivisions) wildlife habbitats. I see Pronhorn Antelope all the time, because of the rangeland of the INEEL.

All that said I’m totally against nuclear energy. The waste products, and the potential problems from accidents is horrific, and I do not support the nuclear sites at all.

My husband actually works on the commercial Wind Turbines, about 40 miles from our house. They are models manufactured by G.E. They are 300 feet tall, the blades are 122 feet long, cost 2 million each (installed).

I spend a lot of time up at the wind site, because it’s so beautiful up there, with wildlife galore. The new models of wind turbines spin slower, with the larger blades. The new models do NOT kill birds or bats.

In two years we have yet to see a single dead bird. The ground animals are NOT disturbed by the moving shadows made by the turning blades. Birds of prey, from kestrals, hawks, golden eagles, bald eagles, and owls have all been spotted hunting up the the turbines. The birds of prey are not disturbed by them in the slightest.

Marrmots, coyotes, foxes, deer, and moose (yes moose live here in the desert!) all live around the turbines, and are not disturbed by them in the slightest, with normal matting activities going on. The men working up there actually have to be careful of the moose, as they are dangerous animals.

49 commercial wind turbines produce about two 55 gallon barrels of waste oil and grease a year, for all 49 turbines. That waste oil/grease is collected run through a filter, and burned in oil furnaces. Wind turbines are highly environmentally friendly.

Modern wind turbines with their larger blades make little to no noise when in proper running condition. Very occasionally you can hear the whosh of a blade as they turn, but mostly this noise is covered by the noise of the wind itself as it rustles through the sage and dry grass, and sparse aspen trees.

If a wind turbine is in need of a maintenance, it can produce a noise known as “foghorning.” It sounds almost exactly like a foghorn used to prevent boats from running ashore. A turbine is not allowed to make that noise for more than a few hours before the men are climbing the 300 foot interior lader and greasing gears, or fixing the machine so it can yaw correctly. Yawing is the turbines ability to turn correctly into the wind.

I am definalty pro wind power, as is my husband. By the way, he could very easily go to work at the INEEL and make $10-$15 more an hour than he makes working on the wind turbines. However we are both firm believers in renewable green energy.

Hope everyone learned something about modern wind turbines.

Farming/homesteading for over 20 years

P.S. Noone would be correct, I have not been by the 2 MGW or larger turbines. I’ve been by 49 of the 1.5 MGW turbines. You know…the ones built by G.E. And sold all over the world, the ones that are sold out currently four years in advance, they are so popular for commercial wind turbine sites to put in. Remember I said they cost 2 million dollars each? These are not little household models.

Maria asks…

a few power ranger questions?

what episodes did tommy & kimberly kissed?? :O they kissed twice! in one of the kiss scenes i saw. i watched the first power ranger they didn’t kiss i skipped zeo.. because i didn’t like the way they dressed lol

& where is zane in this episode Power Rangers Lost Galaxy Here are the Space Rangers? theres lost galaxy + in space fighting together.

are there anymore power rangers episode where they all get together? i remember there was a red scene one. where all the red rangers were fighting it was just a short scene i saw. lol.

yup i still like power rangers please answer

please & thank you xx

Windmill Farms answers:

I can only remember 1 scene in which Tommy and Kimberly actually French kiss, anything else was just almost kisses or just kisses on the cheek. Their first and only French kiss was I believe in the episode that’s titled “The Green Candle, Part 2.”

In the case of the Space/Galaxy episode, Justin Nimmo (Zhane’s actor) retired from acting so he wasn’t interested in returning.

Yes, there are tons of teamup episodes. There’s “Trakeena’s Revenge, Parts 1 and 2″ which shows the Galaxy Rangers and Lightspeed Rangers teaming up.”

There’s an episode that’s titled “Time For Lightspeed” which features Lightspeed teaming up with the Time Force Rangers.

There’s 2-part episode that’s titled “Reinforcements From The Future” which features Time Force teaming up with the Wild Force Rangers. There’s also a 1-part episode that’s titled “Forever Red” which features all of the Red Rangers teaming up in honor of the show’s 10th anniversary. This does not include Rocky so they wound up including Eric so that they would have 10 Rangers in it even though Eric is nothing more than a 6th Ranger.

There’s the 2-part episode that’s titled “Thunder Storm” which features the Ninja Storm Rangers (3 Wind Rangers, 2 Thunder Rangers and Cam as the Green Samurai Ranger) teaming up with the then-current Dino Thunder team.

During S.P.D, there are 2 episodes which are titled “History” and “Wormhole” which features Dino Thunder teaming up with the S.P.D. Rangers.

During Operation Overdrive, there are 2 episodes that are titled “Once a Ranger.” This features a select group of 5 previous Rangers. The previous Rangers who wound up returning are Adam as the Black Mighty Morphin Power Ranger, Tori as the Blue Wind Ranger from Ninja Storm, Kira as the Yellow Dino Ranger from Dino Thunder, Bridge as the Red S.P.D. Ranger and Xander as the Green Mystic Ranger from Mystic Force.

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Uses Of Wind Energy In Daily Life

Ruth asks…

oil and gas conservation and its relevance in daily life?

Windmill Farms answers:

* Oil and Gas are both very important resources in our daily life….that’s why we should conserve both and make the best out of our resources,Here are some daily life conservation tips….

1) If your just 1 or 2 people use the city bus instead it will get to where you need to go and it will burn less fuel(Eg:200 cars burn lets say about 3000 liters of gas when a city buss will provide transport for the same number of people in just lets say about 50 liters of gas)

2)When cooking try not to leave the gas running if your not making any use of it

3)Try to combine your errands into fewer trips. Instead of running out several times a week, try to make all of your stops in one well-planned trip.

4)Pump up your tires. Keep your tires inflated to the manufacturer’s recommendations. Soft, under-inflated tires make the car work harder, burning more gas.

Make the best use of your resources cause one day you might just wake up to find out that your all out of natural resources.Conserving our resources isn’t hard if we put a little effort to it.

* Oil and natural gas touch our lives in countless ways every day. Together, they supply more than 60 percent of our nation’s energy. They fuel our cars, heat our homes and cook our food.oil and natural gas also help generate the electricity that powers our daily lives!

Getting regular tune-ups will not only make your car more reliable, it will make it burn gas more efficiently, too. Be certain that your air filters are clean–diminished air flow will cost you money at the pump.

* We need to conserve oil and gas as these natural resources are overused and therefore may become depleted in the future. As a result this is why many people are investigating other alternative sources of energy and power, such as wind and solar power.

* I think there are several good reasons to conserve oil and gas in our daily lives.

1. Oil and gas are non-renewable resources, so it’s not a question of IF they will run out, but when. I think we owe it to our children and grandchildren to use such a great resource responsibly.

2. Even if you don’t believe that they are contributing to global climate change (I do), oil and gas also cause a lot of air pollution, which is contributing to rising rates of asthma and other respiratory problems, especially in cities. Extracting can also cause considerable ecological damage, as we were just reminded with the disastrous oil spill in the Gulf of Mexico. In this case, the economic damage is also likely to be extreme, since the Gulf of Mexico is a major tourist destination and one of the world’s best fisheries. The entire fishing and tourism industries down there may be put on hold for several years, while the spill is cleaned up and fish stocks recover.

3. Irresponsible use of oil and gas resources also increases our reliance on unstable and frequently unfriendly countries such as Iraq, Venezuela, Russia, Saudi Arabia, and Afghanistan. Even if it were possible to extract it without serious environmental damage, the US does not have sufficient oil and gas resources to meet our needs for more than a short time. The more dependent we are on foreign oil, the more power the oil producing countries have over us and the less ability we have to influence their actions. We’ve been kissing up to the Saudis for years while they fund super-fundamentalist Wahabbist schools and mosques all over the Muslim world, driving up anti-American sentiment and encouraging terrorists. This has got to stop!

The US has fairly insignificant oil and gas resources, but some of the best wind and solar resources in the world. We should be at the forefront of renewable energy generation, yet we’re lagging behind Europe and even China because the oil and gas companies have so much political clout here. Until we can catch up with renewables and other clean tech, energy conservation is the best way to reduce our dependence on foreign oil and stop sponsoring terrorism every time we drive to the grocery store.

James asks…

HOMEWORK HELP!PLEASE.what are alternate sources of energy?please give examples with description about them.?

”WE KNOW FOSSIL FUELS AREREPLENISHING VERY,think about the alternate sources of energy and express your views on a chart paper with pictuers.”guys,this is the exact question.

please help,i shall be thankful!

Windmill Farms answers:

Those sources of energy which can be used and re used again are called alternative sources of energy. They are available abundantly on the nature and don’t get replenished as fast as fossil fuels do.
For eg. – wind energy..which is found abundantly in tamil nadu, karnataka and rajasthan..can be used again and again for electricity generation..the initial cost of setting up the mechanism is high but later on, it reeps huge benefits.
2) solar energy – highest solar power plant is built in madhapur near bhuj. Solar energy also works on the same principles as wind energy and can be used in daily life. Solar water heaters, cookers, calculators are most commonly used.
3) OTE or ocean thermal energy has abundance of energy stored but its actual use has not quite started. Only new zealand and america depend upon this source. It uses ammonia for its working.

For more help…use CBSE science book for 10th class.
The thing is…i typed it out just now. I remembered what i studied in my previous class… can use it wisely if u want. Pictures can be found on google..or yahoo too…

Happy to help.

William asks…

how to be environment friendly in my daily life?

i need more plans to be environment friendly, other than change light pulps, save water, drive my car less, recycle, reduce energy. can anyone please provide me with more plans or ideas?

Windmill Farms answers:

Try not to buy things that have a lot of wrapping on them–especially things that are individually wrapped mostly for convenience rather than for a health reason so there’s less that needs to be recycled. Solar panels and wind turbines. Compost. Take your own bags to the stores. Only use the air conditioner in seriously dire temps, same with the heat. Try to reuse or repurpose stuff whenever you can–and at the very least try not to toss things into the landfill trash that might still be useful to someone. Don’t toss medication down the drain. Use less environmentally damaging cleaning products. You can go so far as to try not to use fruits and vegetables that are grown by agra-farms, look for produce grown by small farmers. If you really want to go more extreme, you might want to consider going vegetarian or switch to eating only wild meats since many of our farmed meat animals suck up more resources then they are worth and produce excrement that can be lethal. Maybe consider starting your own little veggie garden.

Charles asks…

Why’s coal nuclear wind and solar energy used for electricity and oil for transportation? Is this good or bad?

Windmill Farms answers:

I pretty much agree with Jeffry.

Except with the comments about solar manufacturing producing pollution. While that is undoubtedly true, why single out solar? Pretty much everything we make has some environmental impact.
Wind turbines too. Carbon fiber blades must have some impact in their manufacturing for instance.

Solar thermal power plants may have less impact in their manufacture than PV. It’s basically glass and steel, with a generator of some type.
(turbine, stirling engine for example)

At any rate, both wind and solar have small impacts over the life of them, providing completely clean energy once they are installed.

They both have advantage of being able to be built in relatively short times, compared with coal or nuclear plants.

Mass production of plug in hybrid cars in the U.S. Would save lots of oil. They are more marketable than pure electrics, because they have no range limitation. The average American driver would get overall mileage of 100 mpg. Recharging at night for $1 of electricity.

Plug in Partners – advocacy group for PHEVs

“Charging the battery each night would cost less than $1.00 at current rates. PHEVs outfitted with a battery pack providing a 40-mile electric range could power, using the all-electric mode, more than 60% of the total annual miles traveled by the average American driver. That means tens of millions of motorists could make their daily commute using little, if any, gasoline. ”

“PHEVs would result in significant fuel savings for most motorists. The initial cost of the plug-in vehicle, however, would be more than a conventional car or one of the existing mass-produced hybrids. However, a 2004 study by the Electric Power Research Institute (EPRI) found that plug-in hybrids can achieve life cycle costs parity with conventional gasoline vehicles – meaning that over the life of the car the cost will be equal or less despite the initial higher cost. The study calculated gasoline price as $1.75/gallon.”

So at $4 a gallon which we will see soon, how much would you save?

Using the grid to charge cars at night is already cleaner than burning gasoline. As we make the grid cleaner, PHEVs and EVs will make more and more sense.

Good ideas here:

A Blueprint For U.S. Energy Security

and here:
Scientific American A Solar Grand Plan

and here:Green Wombat several stories about solar thermal power plants in California etc.

Helen asks…

I need help with my science project?

where does solar energy come from?

How can we use it in our daily lives?

How is it collected so that humans can use it?

What are the advantages of it?

What are the disadvantages of it?

Windmill Farms answers:

1) Solar energy comes from the sun. Actually this energy is a result of the atomic fusions that happens at the sun because of the high temperatures and atm. Just for knowlege atomic fussion is also the energy that runs the core of Earth.

2) It is not “how can we use it”! We use it!!! Natural uses is in Photosynthesis, in mutations on DNA (and Rna) in order to evolve life or to produce Vitamin B in our bodies and soooooooo much more!! Also Winds are result of the solar energy also as weather. In tecnology we can use Solar energy in order of biochemical actions, in producing electricity (Photoelectric phainomena), heat, cool, mechanical energy and maaany more!!

3 Advantages : Free (actually nothing is free) and unlimited (for humanity’s life scale) energy source, “Green” energy.

4) Disadvantages : The current techologies cannot utilize solar energy very well (e.x. Solar PV have an efficiency of 8-16%) also they are more expensive (for producing electric energy). Solar geometry is not the same in every place on planet. New solar techology investments makes it costier (at the bigining as the laws of free market).

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Wind Energy For Kids

David asks…

What do you think of creating your own wind and solar energy?

I stumbled across this site that shows you how to make your own windmill and solar panels…
Do you think it’s a good investment? If it works I’m a welder and I could pop a whole bunch of windmills up easy but thats only if this works.. What do you think?

Windmill Farms answers:

Wind Power wouldn’t really benefit you unless you have a lot of wind near your house. Also Wind Turbines cause a lot of noise pollution (annoying noise) and kill birds (I’m not kidding, migratory birds get killed when they get near the turbine because they get stuck). I wouldn’t invest in wing power unless I live near the beach where there is a lot of wind or a place with a lot of wind.

It will take you about 10 years to get back the money you have invested in a solar panel. Keep in mind that the days get shorter during winter until the winter solstice and there is less sunlight. Solar Panels absorb very little of the energy of the sun.

Keep in mind what I said before investing in solar and wind power. I suggest waiting till the solar panel cost gets cheaper till you buy.

Sandy asks…

the physics of wind energy. Easy Ten points if you help?

I have to do a physics project on wind energy. Can anybody give me any websites that show the physics of wind energy?
I’m a senior

Windmill Farms answers:

Here are some:

A download of pdf file (e-book):

A small intro ( has more pages click next page):

this is a small video

wikipedia article about wind turbine engine:

if u r a kid and need to know only basic things this wud help u a lot:

hope dat helps and more over der is google to help u the ultimate

George asks…

Renewable Energy, Non Renewable Energy, and the environment?

How does it help out the environment if we conserve energy?
Doesn’t most energy come from the wind, water, and sun?
I’m assuming since there is a thing as Renewable Energy there is such a thing as Non Renewable Energy, which I am also guessing has to do with the use of Finite Resources, but could someone elaborate on that for me, like specifically what is non renewable energy and how is it created/used?
Sorry if I am asking stupid questions but I’m just a kid.

Windmill Farms answers:

Most all energy comes from the sun, it is just you must wait a long time for the sun made resources to build up, like the fossil fuels from dinosaur times. So when we burn fossil fuels they are depleted faster than created. We do continue to find them from exploration. Wind and hydroelectric is also from the sun.

The orbit of Earth and the moon and sun contribute to tides. Energy can be extracted here.

The remainder of the energy comes from minerals, either heat drawn from beneath the earth’s surface, or some highly refined minerals react and heat up (uranium). There is only so much heat that can be drawn from the earth too, a geothermal power plant essentially cools the earth, it takes a short period of time for it to heat back up, but it limits how big the power plant can be. Also, uranium is very dilute in Earth and requires processing much rock, about the same volume needed for an equivalent sized coal power plant. Processing uranium into plutonium agruably can make the nuclear fuel cycle essentially an indefinite supply of energy, but requires some maturity in the human race not yet demonstrated (da bomb).

It does not matter if you are electric or gasoline, both are energy forms that could either be renewable or non-renewable, ask your utility, the grudgingly give out this info.

Please conserve, I will do my part, you do yours.

Robert asks…

Energy Question?

My school has installed a windmill, nd it helps to provided power for the fish hatchery there too. We only have one, but they want to expand in the program, do you think this is a good idea???? (Windmill also helps with the schools electricity bill)

Windmill Farms answers:

I think it’s a good idea and at least warrants a closer look. Published numbers on the economics of wind energy may not apply to your specific situation. Sometimes, factors such as land value and tax breaks are not accounted for. Consider doing a cost versus benefit analysis yourself… Or find a qualified parent to volunteer some time. As someone already mentioned, the educational worth of this project may weigh in significantly as a benefit. I’d also look into the possibility of sponsorship from entities with a vested interest in proliferation of this technology. The kids and community might be viewed as future customers.

Here are some useful cost-related links for your reading pleasure:

Sandra asks…

wind power??????????

We have a lot of wind here in the Midwest US. I was just wondering why the heck we don’t have more? I am very concerned about conserving fossil fuels and the environment. I think that we shoud decrease our fossile fuel usage by about 40%. It’s a big stretch, but with new hybrid technology coming soon. and with exploring alternative energy sources. How can I write a letter convincing the government to make more wind plants even before the presidential election?

Windmill Farms answers:

Join T. Boone Pickens.. I’m not kidding

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Renewable Energy Definition

Charles asks…

What is renewable energy? what is the difference between renewable energy and green energy?

Windmill Farms answers:

Renewable energy is energy which comes from natural resources such as sunlight, wind, rain, tides, and geothermal heat, which are renewable (naturally replenished). In 2008, about 19% of global final energy consumption came from renewables, with 13% coming from traditional biomass, which is mainly used for heating, and 3.2% from hydroelectricity.[1] New renewables (small hydro, modern biomass, wind, solar, geothermal, and biofuels) accounted for another 2.7% and are growing very rapidly.[1] The share of renewables in electricity generation is around 18%, with 15% of global electricity coming from hydroelectricity and 3% from new renewables.


Green energy includes natural energetic processes that can be harnessed with little pollution. Anaerobic digestion, geothermal power, wind power, small-scale hydropower, solar energy, biomass power, tidal power, and wave power fall under such a category. Some definitions may also include power derived from the incineration of waste.

Some people, including George Monbiot[45] and James Lovelock[46] have specifically classified nuclear power as green energy. Others, including Greenpeace[47][48] disagree, claiming that the problems associated with radioactive waste and the risk of nuclear accidents (such as the Chernobyl disaster) pose an unacceptable risk to the environment and to humanity.

No power source is entirely impact-free. All energy sources require energy and give rise to some degree of pollution from manufacture of the technology.



Susan asks…

what would happen if we went completely over to renewable energy?

Please Help Me I dont understand Physics

Windmill Farms answers:

Ultimately, we HAVE to. By definition, non-renewable energy (fossil fuel and nuclear) is going to run out eventually. Probably on the order of 100 years, according to most estimates, some say lots sooner, others lots later. But.. What would happen? Nothing. Or rather, it would depend on how much energy is being produced and used rather than the source. Not all renewable energy is clean. Fossil fuel is dirty but can be made clean, nuclear is clean and long-lasting but generates waste that needs storage. Your source of energy, however, can affect how much you use.

Renewable energy is ultimately, solar energy. Wind, wave, thermal, hydroelectric are all fed by solar energy. Even that isn’t, strictly speaking, renewable energy because the sun is the source. The sun is a huge nuclear fusion reactor that will eventually run out of fuel. In a few billion years… !!

John asks…

what is biomass energy?

Windmill Farms answers:

There is no definition of biomass energy. Biomass can be defined as the biodegradable fraction of products, wastes and residues from agricultural, forestry, related industries and as well as the biodegradable fraction of industrial and municipal waste. Biomass energy is a renewable energy source from recently living organisms. This energy is produced by the conversion of biomass directly to heat or to a liquid or gas that can be converted to energy. Biomass energy is often created by plant matter, sometimes may be animal matter. It is considered the oldest form of energy used by humans. Only few people believe that biomass energy is a good source of energy and has cut down costs of electricity and gas. Other people believe that it has some disadvantages when put into use. Biomass energy is indeed better for the environment than fossil fuels. It can be a disadvantage because it takes carbon dioxide from the environment by means of the plants, the burning of the matter also releases the carbon dioxide into the environment. First people need to find a solution to this problem before biomass energy becomes a main form of energy for our world in the future. Materials such as wood, methane, and alcohol fuels are examples of biomass energy.
Wood is the largest energy source of biomass. Waste energy is the second largest source of biomass energy. Biomass energy is also known as biofuel and bioenergy.

Jenny asks…

Help with science (physics) about energy?

homework. i need to know:
what is energy? how do you know when there is energy? and what we use it for.
it’s like fossil fuels, renewable energy, not body energy. unless it’s the same thing. D: and i know we use it for gas and electricity for homes and businesses. all i’ve found for what is energy is that it helps us do things, but that’s too basic.
i’m 14, year 10, make it half simple please? :)

Windmill Farms answers:

If you are talking about energy in a physics class, then yes, it is all the same thing. By definition fuels contain energy…

Simply put, energy is the capability to perform work. There all multiple kinds of energy, from potential to kinetic. Energy can never be gained or lost, but can be transferred from one body to another through heat, light, and sound, among other things.

Take, for instance, a car crash where a car hits a tree. The car, traveling at 55 MPH, has a certain amount of energy. When it suddenly stops by striking the tree, that energy is transferred out of the movement of the car (meaning it stops) and transferred into the bending of the car parts, the sound of the crash, the damage to the tree, etc. The car got up to 55 in the first place by transferring the potential energy in the fuel into kinetic, heat and light energy in the combustion engine of the car.

Another example is holding a bowling ball over the side of the building. Gravity is exerting a downward force on the ball. You are exerting an equal force to hold it up (thank Isaac Newton by the way). The ball has the potential to accelerate at 9.8 m/s/s until it hits the ground, so it has potential energy at that point. Once you release the ball, it is now in motion, so the energy becomes kinetic, until it hits the ground, making a sound and probably a dent in something, transferring that energy out of the ball.

Clear as mud, right?

Helen asks…

biomass energy and bio-energy?

is biomass energy and bio-energy the same thing or is bio-energy, biological energy. Cause i saw on a site that biomass energy can be shortened to bio-energy but then on a different site it said that bio-energy stood for biological energy.
thanks :)

Windmill Farms answers:

Biomass, a renewable energy source, is biological material derived from living, or recently living organisms, such as wood, waste, (hydrogen) gas, and alcohol fuels. Biomass is commonly plant matter grown to generate electricity or produce heat. In this sense, lliving biomass can also be included, as plants can also generate electricity while still alive. The most conventional way on how biomass is used however, still relies on direct incineration. Forest residues for example (such as dead trees, branches and tree stumps), yard clippings, wood chips and garbage are often used herefore. However, biomass also includes plant or animal matter used for production of fibers or chemicals. Biomass may also include biodegradable wastes that can be burnt as fuel. It excludes organic materials such as fossil fuels which have been transformed by geological processes into substances such as coal or petroleum.

Industrial biomass can be grown from numerous types of plants, including miscanthus, switchgrass, hemp, corn, poplar, willow, sorghum, sugarcane and a variety of tree species, ranging from eucalyptus to oil palm (palm oil). The particular plant used is usually not important to the end products, but it does affect the processing of the raw material.

Although fossil fuels have their origin in ancient biomass, they are not considered biomass by the generally accepted definition because they contain carbon that has been “out” of the carbon cycle for a very long time. Their combustion therefore disturbs the carbon dioxide content in the atmosphere.

Plastics from biomass, like some recently developed to dissolve in seawater, are made the same way as petroleum-based plastics. These plastics are actually cheaper to manufacture and meet or exceed most performance standards, but they lack the same water resistance or longevity as conventional plastics.

Biomass energy is derived from five distinct energy sources: garbage, wood, waste, landfill gases, and alcohol fuels. Wood energy is derived both from direct use of harvested wood as a fuel and from wood waste streams. The largest source of energy from wood is pulping liquor or “black liquor,” a waste product from processes of the pulp, paper and paperboard industry. Waste energy is the second-largest source of biomass energy. The main contributors of waste energy are municipal solid waste (MSW), manufacturing waste, and landfill gas. Biomass alcohol fuel, or ethanol, is derived almost exclusively from corn. Its principal use is as an oxygenate in gasoline.
Biomass can be converted to other usable forms of energy like methane gas or transportation fuels like ethanol and biodiesel. Methane gas is the main ingredient of natural gas. Smelly stuff, like rotting garbage, and agricultural and human waste, release methane gas – also called “landfill gas” or “biogas.” Crops like corn and sugar cane can be fermented to produce the transportation fuel, ethanol. Biodiesel, another transportation fuel, can be produced from left-over food products like vegetable oils and animal fats. Also, Biomass to liquids (BTLs) and cellulosic ethanol are still under research.
There are a number of technological options available to make use of a wide variety of biomass types as a renewable energy source. Conversion technologies may release the energy directly, in the form of heat or electricity, or may convert it to another form, such as liquid biofuel or combustible biogas. While for some classes of biomass resource there may be a number of usage options, for others there may be only one appropriate technology.

Bioenergy is renewable energy made available from materials derived from biological sources. In its most narrow sense it is a synonym to biofuel, which is fuel derived from biological sources. In its broader sense it includes biomass, the biological material used as a biofuel, as well as the social, economic, scientific and technical fields associated with using biological sources for energy. This is a common misconception, as bioenergy is the energy extracted from the biomass, as the biomass is the fuel and the bioenergy is the energy contained in the fuel.
Biomass is any organic material which has stored sunlight in the form of chemical energy. As a fuel it may include wood, wood waste, straw, manure, sugar cane, and many other byproducts from a variety of agricultural processes.

There is a slight tendency for the word bioenergy to be favoured in Europe compared with biofuel in North America
Biomass is material derived from recently living organisms, which includes plants, animals and their byproducts.
Manure, garden waste and crop residues are all sources of biomass. It is a renewable energy source based on the carbon cycle, unlike other natural resources such as petroleum, coal, and nuclear fuels.

Animal waste is a persistent and unavoidable pollutant produced primaril

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Wind Power Companies

Nancy asks…

Biggest Wind and Solar Power Companies in Sweden?

I am a business student who is about to write his master thesis. I would really enjoy to write on Wind and Solar Power for a Swedish company (or company located in Sweden). Do you have any ideas which companies in Sweden offer these kind of Master Thesis Projects?


Windmill Farms answers:

Information is below.

Lisa asks…

Do local power companies remove trees that fall down during high winds?

Yesterday where I live, a tree fell down during some high winds blocking the driveway that leads to my neighbor’s house. It’s up to me to call the power company about it (the neighbor works and doesn’t have time to call) but since it didn’t knock down any wires I don’t think they would do it. Would they do it if I call them or would I have to call my local fire department or municipal building about it so it can be removed in a timely fashion?

Windmill Farms answers:

If the tree was originally on your property, you’re responsible for its removal and for any damage the tree may have caused. In the past, my family had several trees knocked down by hurricanes, and this was always the case. Your insurance company may cover this cost (less deductible) depending on your policy coverage. If the tree knocks down power lines, the electric company is only responsible for fixing the lines.

Jenny asks…

Neighbors tree falls on my power line and now power company says I need to have the line replaced?

My neighbor’s tree fell on one of my power lines and it has caused my power to completely go out. When I called the power company they told me that because the power line and pole is on my prosperity I am responsible for it, and I have to pay to have it. What do I do because this is not my tree that did the damage?

Windmill Farms answers:

Ultimately you will have to pay for the repair and then sue your neighbor if they won’t provide their homeowners insurance. The trouble is going to be proving that it was THEIR tree which might involve getting a survey, even more money. When it gets down to it, the case may sit in front of a judge who will look at the condition of the tree, making a decision if the homeowners were negligent in not maintaining the tree and knew of it’s poor condition, or if it was unforeseen and an act of god that they won’t be responsible for. Takes LOTS of pictures, showing whether the tree was old and rotten or had a full leaf crown at the time of damage. Show closeups of the trunk if pests are indicated ( ants and termites can eat a tree from the inside out and you never see any indicator on the bark). Hundreds of trees here in southern NJ snapped off 10′ up and were riddled with ants, but previously showed no sign of them therefore no warning they were imminently going to break. If there are any survey markers nearby try to get them in a pic with someone pointing at it. You are probably covered with your homeowners for wind damage.

Mandy asks…

Will power companies pay you for your excess power?

If one had solar panels or a wind turbine would the power companies pay out for excess electricity put on the grid?

Windmill Farms answers:

You need to check with them or your state energy commission. In California, we have net metering. When I am making more than I am using, the excess goes into the utility lines, and I can get that much back when I am using more than I am making. At the end of the year I pay them for any excess usage. If I make more than I use, it gets given to the power company.

I understand only industrial users can sell their excess to the power company here.

William asks…

What are some rising, or already well established, solar or wind power companies?

International companies are acceptable as well. Does anyone know of any companies which are in the solar or wind (or any alternative source of energy) power industry? Or any innovative companies as well.
Thank you

Windmill Farms answers:

I think rather than asking people here you’ll get better results by searching for the answer in Google.

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Vertical Wind Power Generators

Sharon asks…

What items have a motor that is good for a wind turbine generator?

I work at a place where people drop off stuff for free, and I salvage what I can and sell the items for just enough to pay for the electricity bill. I was wondering what kind of items that would normally be no good would have a motor in it that would be good for a wind turbine. As a company that pushes for going green, I think having green energy, by making wind turbines, would be great for this small company.

I’ve read that treadmills have good ones, and older computers. What other things would have them?

Windmill Farms answers:

Air conditioners….you can watch a video on that shows this.

Joseph asks…

Grid connect Controller for wind turbine driven induction generator (async motor)?

Thanks to your many very helpful answers to my previous questions I was able to find a company that sells such a device. As you may recall, I was intrigued by this device: It is a vertical axis wind turbine driven async motor that acts as an induction generator that plugs directly into an existing outlet in your home. No inverters, no batteries. Sales price around $500. With an electric meter (a freebie from our power company) than can run backwards, this would allow me to greatly reduce my energy bill all at a very low cost. To make the cost even cheaper, and to increase the power output, I want to make my own wind turbines, and use my own async motors. So all I need is the controller.

I have found a company that sells such a device: for $830. It connects a 5500 watt wind turbine driven async motor directly to the grid. No inverter, no batteries. It uses a “hall-device” to measure the RPM, it provides about 1 AMP to the motor to energize its coils, 50amp solid state “zero-cross relays”, capacitors, 30amp breaker/enclosure, an exterior mounted disconnect, and an interior-mounted fused-control voltage switch. This is it!!!

So my question is, does anyone know how to build this controller. This company doesn’t sell the plans to this, and $830 is too high for me. I am sure I could build this with components for less that $400. If there is any electrical engineering person out there that can help, this will be a challenge, but it is great knowing that someone already has figured this out and is selling it.

Windmill Farms answers:

Look at the Prairie Turbines site again. The price of the micro-controller including the hall device is $255. The $45 book provides a complete list of material and instructions to build everything else.

The micro-controller monitors the speed sensor and provides control signals to two solid-state relays. One relay connects the motor to the grid when the speed reaches the motor’s 1800 RPM synchronous speed and disconnects the motor if the speed drops below 1800 RPM. The other relay is energized to release the brake when the controller is energized and de-energized by the controller when the motor speed exceeds the maximum safe operating speed. If this occurs, the controller apparently must be manually reset.

I did not find the maximum safe operating speed stated on the web site. If the full load speed of the motor is 1750 RPM, the full load slip is 1800 minus 1750 or 50 RPM. The speed at which the motor would generate full load current and present full load torque to the turbine is 1800 RPM plus the full load slip or 1850 RPM. With the design described, a three-phase motor is connected to a single phase source with capacitors connected between the source and the third motor phase. That is likely to increase the motor slip somewhat.

I am not sure what happens if the motor is driven above the speed at which it generates full load current. A three-phase motor operating as an induction generator connected to a three-phase supply has a torque vs. Speed curve that is something like the mirror image of the motoring torque vs. Speed curve. The curve is likely different with the single-phase connection used in this case. I don’t know what the speed vs. Current curve looks like in either case, but I will see if I can find it. I am also curious to know if the Alan Plunkett listed on the web site as an author is the Alan Plunkett that is well known author of technical papers on inverter and variable frequency drive subjects.

Added information:
I found information indicating that, for a 3-phase motor connected to a 3-phase supply, the speed vs. Current curve for induction generator operation is like a mirror image of the speed vs. Current curve for motor operation. That would mean that the maximum speed would need to be limited to the synchronous speed plus the full-load slip. The web site indicates that the full-load speed for the motor that they used is 1725 RPM for 3-phase operation. That would make the maximum speed 1875 RPM plus the additional slip due to the single phase with capacitor arrangement.

Charles asks…

Why is a low starting torque bad for a wind turbine?

Hey. I’m doing a proposal project for my technical writing class and I’m doing it on wind turbines. What I would like to know is why I have been reading that a low starting torque is a detrimental quality to a Darrieus-type vertical axis wind turbine. Wouldn’t this mean that the turbine can start very easily and generate power more often? Does it have something to do with a lot of variability in the generator’s speed because the turbine can start generating power so easily? Thank you.

Windmill Farms answers:

Hey Charlie, almost all wind turbines have a relatively low start up torque, some are just lower than others. What this means is the amount of rotational power coming out of the shaft is near zero when the rotor starts turning. In order to extract power out of the wind, they must reach a relative rotational speed to the wind speed. The Darrieus Rotor has advantages over the Savonius rotor, or other types of Vertical Axis Wind Turbines (VAWT’s). Mainly, because they produce power using lift from the airfoil instead of drag, they are much more efficient. But at startup, they have virtually zero torque, which means in many cases they actually need a little motor to start turning the turbine when the wind speed becomes adequate, like kick starting a motor cycle. This starting motor adds cost, weight, complexity, and wastes some of the energy developed. I am adding a link from Kragten Design of the Netherlands that better explains this, look down around page 3 or 4 of the publication under, “Disadvantages of the Darrieus Rotor.” If you want to learn more, read the entire paper, then check out some of the other sources below.

I would add also that there has been a lot of hype in recent years about various VAWT designs, and one word that always gets thrown around when people describe them is, “Efficient.” In truth, nothing could be more inaccurate. An exceptionally designed and produced VAWT might reach a maximum conversion efficiency of about 8%, way less than many standard design horizontal turbines at 25 to 35 %. The main reason for this is in the paper, but imagine for a moment that when a vertical turbines blade is moving downwind, most of its energy is used forcing the opposite blade upwind into postion for the next cycle, so very little is left to produce energy. I would also caution you on getting facts for your paper from hacks like us online. In the 12 or so years we’ve been powering our home with the wind and sun and teaching renewable energy courses here, I’ve learned there are three things in vast supply in this business, wind, sun, and missinformation. Many people are happy to pass on their knowledge on this subject, having never laid a hand on a turbine or solar panel. Go to the sources for your information, in particular the non profit ones that don’t have an agenda either way on the technology. Good luck Charlie, and take care, Rudydoo

Lizzie asks…

Does anyone know of a wind turbine that is a vertical barrel type, with helical slots.?

I’m looking for the maker or designer of a vertical barrel type wind turbine that uses a barrel type cylinder with helical slots from top to bottom. There was an initial problem with the barrel(stator) being too heavy for the base causing friction and drag. However this was overcome by putting magnetic rings (reversing the poles) between the Barrel base and the generator base, this kept the barrel and base apart by magnetic forces thus eliminating the friction and drag, this allowed the unit to work in extremely low wind speeds. Also with the helical slots, the unit would rotate no matter what direction the wind was coming from. I am looking for this information as i would like to use it for generating electricity from wind power to reduce my dependence on municipality supplied electricity which is increasing in price at an alarming rate due to gross negligence and miss management of the state owned power stations

Windmill Farms answers:

Hey William, Five Toze is correct, there are great photos of these devices on Youtube and other sites you can find doing a proper google search, but they will never develope more power than your flashlight uses. The reason for this is simply their wind conversion efficiency. The best wind turbines in the world operate in the 25 to 30 % efficiency range, meaning they convert about 1/4 of the wind power they are exposed to into useable energy. The barrel types and other “Darrieus” Rotor designs run from 2 to 5 %. You’ll see them on online videos spinning radically in even light winds, but that is because there is no generator attached yet, or the generator is spinning with no load connected. As soon as you start extracting torque from the barrel to make energy, it will simply slow down and stop. Trust me on this, we have a wind and solar powered home, and I’m on my 3rd wind turbine right now, the other two didn’t work out either. There is a theoretical limit on wind turbine efficiency called the Betz Limit, I think it’s around 39%, look for that at Wikipedia, or the AWEA website below to understand it more.

I’ll list some good sources below if you want to learn more about wind power before you go into any construction phases. Take care William, and good luck, Rudydoo

Sandra asks…

regarding tidal power…?

okay. firstly – what’s the difference between a barrage and a turbine?

and secondly, what are the differences between offshore turbines and vertical-axis turbines?

Windmill Farms answers:

A barrage is a dam across an estuary which has a set of gates, which open when the tide is rising. These gates let the water flow in to be collected into a basin inside the barrage. When the tide reaches its highest level, the gates close to hold the water inside. As the ocean tide level drops naturally, the water inside the barrage basin runs out slowly, but first it goes through water turbines, which rotate generators that create electricity.

Stream tidal energy is harnessed from currents – horizontal water movement which is created by the rise and fall of tides. These tidal currents move around in a predictable pattern and energy can be collected using tidal energy devices. Turbines, similar to wind turbines, can be anchored to the sea bed to generate electricity. Ocean turbines are most likely to be placed where there is a fast flow of water,
such as harbour mouths. The fast flowing water moves over the blades of the ocean turbine resulting in the ocean turbine spinning. This action is much like a wind turbine when wind flows over the blades. There are three prototypes of tidal energy devices: horizontal axis turbine, vertical axis turbine, and oscillating devices.

A horizontal axis turbine is similar to a wind turbine and is the most common type of tidal stream turbine. The moving currents spin the turbine’s blades. The blades drive a generator, which converts energy harnessed from the ocean currents into power.

A vertical axis turbine looks like a large egg beater. The turbine has large blades that rotate like a washing machine as currents move past. This movement creates energy,
which is then converted into power by a generator.

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Is Wind Power Really Green

Chris asks…

Is nuclear power green or not?

Is there another practical means to generate the world’s power needs? Fossil fuel based power must be worse, since it has immediate greenhouse gas impacts, and the total volume of the world’s nuclear waste wouldn’t fill a soccer stadium. If run properly, do nuclear plants impact the environment?

Windmill Farms answers:

Depends on your definition of “Green!” If you are looking for a source of energy that produces NO by-products, get your head out of your butt! *grin* Even wind mills have by-products in terms of constructing them. Then there will be parts to replace due to wear-n-tear. Nuclear is green! It’s the Greenies who don’t think it is green enough due to the need to dispose of the spent but still radioactive fuel. The jury is still out on whether or not producing CO2 is bad for the environment, regardless of what ALGORE tells you.

Can anyone tell me how much CO2 the earth produces on its own by way of volcanos? Once you get THAT number, then we can discuss how much CO2 we humans produce.

James asks…

will green energy be able to provide as much energy as oil?

I’ve heard about how aweful solar and wind energy is compared to oil and coal. But when w reach peak oil is green energy going to be able to take the horns of where oil has gotten us to?

How many solar plants and wind farms are going to have to build to equal the power output oil has been able to give us?

And please don’t go off about global warming. I just want to know about the power output of green energy compared to oil.

Windmill Farms answers:

The transitions are probably going to be disruptive and difficult and painful. And energy isn’t only exchanged  as electrical power. Much of it is converted to mechanical energy or just directly converted to heat for homes (gas and oil, for example.) The energy also breaks down into base load and peak load capacities, and there is a need to not just move energy around but to also store it for a while (batteries, moving water up and down, latent heat, etc.)

A lot can be done that isn’t already done in terms of making better, smarter uses of the energy delivered locally (whether from sun, wind, or external power grid sources.) I haven’t been very thoughtful about it, though. Just what you usually read, occasionally, about new home designs and old home modifications. Some of the low-hanging fruit (in the US, anyway) is changing out single-pane windows for double-pane, for example, or improving home insulation. There’s probably a lot more that can be done with less expensive and difficult things like that. I’d defer ideas here to others.

As a matter from personal experience with the NRC and the full power operation permit for the Seabrook nuclear power facility circa 1990, the NRC’s continued memorandum of agreement (MOA) with INPO, which is well-designed and well-used today to hide safety information from the public, and the continued Price-Anderson act, I do NOT at this time support an expansion of nuclear power in the US. More, I’d prefer to see our very old existing nuclear plants shut down. If and when these details change and openness about safety issues is a reality in the US and not just disingenuously mouthed words, I’d probably support nuclear power here. But not until then.

I like the idea of expanding research and practical implementations of geothermal power. We haven’t done nearly enough with that. Solar power alternatives are improving. Etc. A problem with any substantial changes in the existing infrastructure include what to do with old facilities as they are retired. A problem with substantial new construction is just how much additional fossil fuel will have to be expended in designing, experimenting with, and finally building them. We have to be careful that we don’t increase fossil fuel use as a byproduct of “going green.” It makes a lie out of the whole endevour, if careful accounting isn’t done first.

I suspect, in the longer run, that gasoline and diesel cannot actually be replaced in terms of their convenience, existing servicing infrastructure, safety knowledge and practices, etc. If you temporarily “forget” about where they currently come from (fossil fuel resources) and just consider them a safe, convenient form of energy storage, then they are quite remarkable. You simply cannot find a safer, denser by mass, denser by volume, or more convenient way of storing energy. For example, diesel provides a volumetric energy density of about 36 MJ ? L. You can light a match and drop it into diesel without much risk; you can pour it between containers in open air; etc. It’s safe and convenient and very dense. Hydrogen provides 2 MJ ? L and 2.7 MJ ? L at 3600 psi and 5000 psi, respectively. And neither of those pressures are particularly safe inside a vehicle or being transferred into one. Even cryogenically stored hydrogen provides only 8 MJ ? L. And that assumes you CAN store it that way inside a vehicle, for example. Hydrogen leaks are far more dangerous than diesel fuel leaks. And I worry about car accidents should hydrogen cars ever be widely used.

Packing hydrogen onto longer chains of carbon is the safer way to store hydrogen. Which means gasoline and diesel and the like. But it does NOT have to come from fossil fuel resources. We can use renewable energies and, when not needed immediately, store it into this convenient form and use existing infrastructures for its delivery and use. Note that I’m not suggesting that gasoline and diesel continue to be pumped from fossil fuel resources. Quite the opposite. I just think they are probably a better means of saving excesses of renewable energies (should we ever have any such excesses) until they are needed.

All that said, I still think any transition is going to be very painful. And the temptations to use fossil fuels will continue to be almost impossible to ignore. Any country that chooses to cut itself off from fossil fuels will be cutting its own economic neck, if other countries continue to use them unabated. I’m not sure how cooperation here will ever be achieved. So I don’t think we will go green until politicians and leaders get the message that there is no other viable political alternative for them.

Michael asks…

I like to make a micro wind mill power, can I use micro toys dc motor ?

I like to make a micro wind power, can I use a small DC toy motor and attach a small plastic propeller ? If not then what’s can I use ?

Windmill Farms answers:

It can be done.

A demo I have seen had a propeller about 6 inches across. I have no idea how much wind is required to get any output.

Here is something on line. I expect there are others if you do an google search…

Paul asks…

What are 3 positive things about the wind energy sourse?

My friend and i are working on a science project and we don’t know what websites to go to about windmill energy sooo we need help with finding 3 positive things about the windmills.

Windmill Farms answers:


1. The wind is free and with modern technology it can be captured efficiently.
2. Once the wind turbine is built the energy it produces does not cause green house gases or other pollutants.
3. Although wind turbines can be very tall each takes up only a small plot of land. This means that the land below can still be used. This is especially the case in agricultural areas as farming can still continue.
4. Many people find wind farms an interesting feature of the landscape.
5. Remote areas that are not connected to the electricity power grid can use wind turbines to produce their own supply.
6. Wind turbines have a role to play in both the developed and third world.
7. Wind turbines are available in a range of sizes which means a vast range of people and businesses can use them. Single households to small towns and villages can make good use of range of wind turbines available today.

Hope this helps !

Mandy asks…

What is Green power???????????

I got this project in school about green power but i look for it in the internet and i just dont get it can somebody explain to me what it is and/or give me a webpage where i could understand what green power is?

And in your own opinion do you think green power is good or no? and why?

Windmill Farms answers:

Green power=power source that doesn’t harm the environment. Wind, solar.

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Uses Of Wind Energy Pdf

Mandy asks…

Have any of you heard about using the force of gravity as an alternative energy source?

Other nations are looking into improving and developing alternative energy sources including the force of gravity.

Our government and media have not even mentioned its use as an alternative. Why not?

I have written an article about this subject, it can be found at:

Have any of you seen or heard anything about using gravity?

Windmill Farms answers:

There has been all kinds of claims of doing this or doing that to make cheep energy but the truth be known
.. . ..
We are back to square one you have to have a power source that will create enough out put power to create electrical energy
.. . ..
And gravity to be one of them is like using wind to take care of all our energy problems
.. . ..
Till night fall and the wind stops blowing
,, , ,

Michael asks…

Why do wind energy billionaires want to stop the building of the keystone pipeline?

At least 20,000 good paying jobs would be created.

Windmill Farms answers:

Reasons not to okay the Keystone Pipeline:

1. Will RAISE USA gas prices (Bloomberg)
2. Gas not for sale in USA
3. USA gets the pollution
4. Won’t provide many jobs
5. Tar sands oil spills are three times as frequent as crude oil.
6. With tar sands oil spills the damage is greater, the public health risks larger, the clean-up harder, the costs higher.

Not exactly good news for the people, water resources and ecology of the six states that the proposed Keystone XL pipeline will cross if it is approved.

A study of historic oil spills in the U.S. Reported the average clean-up cost for heavy crude of $18.95 per litre. The Kalamazoo River spill in 2010 has so far cost over 10 times that much and counting. Google it.

91 significant Keystone XL spills can be expected over 50 years. A previous study concluded that “…[T]he benzene released by a Keystone XL worst-case spill to groundwater in the Sandhills region of Nebraska would be sufficient to contaminate 4.9 billion gallons of water at concentrations exceeding the safe drinking water levels. [The spill] would pose serious health risks to people using that groundwater for drinking water and irrigation.”

According to a 2010 report by the Michigan Department of Community Health, health care providers identified 145 patients who had reported illness or symptoms associated with exposure to the Kalamazoo tar-sands spill. In a door-to-door survey of 550 people in four communities and one workplace along the river, 58 percent of the reported health effects, including headaches, respiratory problems and nausea. Some went to area hospitals for treatment.

Enbridge, the pipeline builder, bought 130 houses within 200 feet of the river where the spill was worst. The long-term impact on real estate values has yet to be determined since on one home has so far been sold to private parties.

Investing in renewable and clean energy creates jobs. For every
$1 million invested, 16.7 jobs are created. By contrast, $1 million invested in fossil fuels generates 5.3 jobs. A $150 billion investment in the fossil fuel industry would create about 788,000 jobs. That same investment in clean energy would create more than 2.5 million jobs. [...]

The renewable energy industry is growing at twice the rate of the overall economy. Today the clean energy economy employs 2.7 million workers overall. Between 2003 and 2010—a time when many industries were cutting jobs—clean energy economy employers added 500,000 jobs. In contrast, the top five oil companies generated $546 billion in profits between 2005 and 2010, but reduced their combined U.S. Workforce by 11,200.

Key Facts on Keystone XL

The Impact of Tar Sands Pipeline Spills on Employment and the Economy

Under huge pressure from the oil industry, President Obama announced the fast-track approval for the southern leg of the Keystone pipeline.

It will create only 4K temporary jobs, and IT WILL RAISE GAS PRICES by $.20.

But it will make billions more in profits for the transnational oil corporations that will ship the gas overseas to foreign consumers.

Republicans Hide the Fact That Keystone XL Will Raise The Price Of Gas For Americans

Five reasons why the Keystone XL tar sands pipeline will raise oil prices

Do a little research on tar sands oil.


Steven asks…

Where can i get some useful information about hybrid energy systems??

I need some documents , websites, books, pdf files etc, that give me some info about the use of hybrid energy systems for the generation of electrical energy

Windmill Farms answers:

Hybrid means combining two ar more different energy sources. This could be solar+wind or coal+gas or any other combination. Search on google or yahoo using words like: hybrid, trigeneration, cogeneration, solar and wind, good luck

Linda asks…

How much power can a home wind turbine make in the US wind zone?

how much can this turbine make?
Proven Energy 15kW grid connect wind turbine – 300V Proven 15/300

Windmill Farms answers:

I have a 20kw Jacobs (Wind Turbine Industries) turbine and live in Wisconsin. My electric needs are covered by it, including the geothermal heat pump used to heat and cool my home. There is an article in home power magazine that gives some data on the 15kw Proven. Http:// see page 5 of the pdf file. The article estimates 21,700 per year at an 11 mph average wind speed. The winds do vary greatly in different parts of the country so get a look at a wind map to get a better estimate. Http:// If you go to the second map on the page from the link you can click on your state and probably get a pretty good idea. If your state does not have a map you will probably have to give it your best guess off of the first one on the page.

William asks…

How much does wind energy and geothermal energy cost per kilowatt-hour (kWh) in hawaii?

does the cost depends on where it is used?

Windmill Farms answers:

Here are some sites which should help in your research and yes costs would vary due to the costs of where the infrastructure was built and how easy it is to get to, to maintain the facilities.


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