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Answer by Have a scientastic day!
just get a small electric motor. I recommend you go to a place like electronic goldmine to find one.

Just build a turbine out of balsa wood or cardboard, connect it to the motor shaft with glue.

Hook the motor output to a voltmeter or a couple of LEDs

blow on the turbine to make if spin and voila! electricity.

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Answer by scottsdalehigh64
Certainly. It is quite clear that if the blade speed is zero, there is no power output. The power output of a wind turbine is proportional to the cube of the wind speed.

Answer by Roger
Yes and no. There is a relationship, but it is not as simple as “the faster the blades turn, the higher the output”. It depends a lot on the design of the particular wind turbine.

Obviously, with no wind blowing the blades will not be turning at all, and no power will be generated. It takes a certain minimum wind speed to overcome friction in the turbine bearings, gearbox, and generator and begin the blades turning. Many older turbines employ what are know as “synchronous generators” that must turn at a constant speed where their output is in phase with the 60-cycle AC power on the grid. Turbines of this type do not generate any power until the wind is able to spin the blades at the required speed. After that, the speed of the blades remains constant as wind speed increases. The higher wind speeds increase the force on the blades and produce more power, but the speed of the blades is kept locked to the 60-cycle frequency of the power grid. When the wind speed gets so high that the blades can no longer be kept to their constant speed, the turbine shuts down. It turns out of the wind, and mechanical braking is applied to stop the blades.

Turbines with synchronous generators are still made, but many newer turbines use a more flexible type of generator. These newer designs do not require the blades to turn at a constant speed, and are able to capture power over a wider range of wind speeds. They employ electronic power control units that are able to decouple the generation of power from the insertion of power onto the grid.

Answer by Emilytaylor
effectively blades angle has very importabnt in the mill’s speed by the same wind.
if you are sciences fan , just make different essays with the same blades, same wind force but each time you move blades angles, you can notice that there are differences in the mill speed.
You can get real help when visiting this site: http://www.windpowercost.org ; they have very simple step by step free courses on how to build your own wind power network .
Thanks to go green energy.

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Answer by Stephen C
1. Vertical axis turbines are not as efficient as axial turbines.

2. 5km/h is 1.3m/s virtually no wind turbine on load will operate at this speed.

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Answer by Sadie
There are some options. For either, you can tie them to the grid, and hopefully one area will have a surplus when another area is in the doldrums. Electricity is already transferred long distances, so this is not new, but load balancing is an issue, and there are problems with new power sources being added to the grid.
For solar, first maximum energy load is during the day, particularly on hot days when the A/C is needed, so solar plants can take the place of natural gas “peaker” plants, used to help with a peak load. Second, if you have solar thermal (as opposed to solar photovoltaic), you can heat up a mass which retains its heat, and then use that heat later. This could work for several days of heavy clouds, but overall power production would eventually be reduced. Photovoltaics work rather well in light overcast situations, it doesn’t need a clear blue sky.

I came accross a new, proven and tested home made wind power system and solar power system which eliminates our electricity bills. It was written by a Renewable energy enthusiasts Michael Harvey the diy called Earth4energy. You can get your copy to save energy and help environment while eliminating your power bills. Get it from here: http://homemadeenergyreviews.blogspot.com/

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Answer by DrIG
Information is below.

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Answer by Snotalie
you should be able to cut 1/3 off your poweer bill. if you have three you could power you whole home.

Answer by Mr Radio Man
Very little… Windmills do not hardly make enough to power one home. Just use electricity…

Answer by starshyne59
Here’s the link to a map that shows the wind strengths in the US. This will get you started.

http://www.windpoweringamerica.gov/wind_maps.asp

Here is another site with some great information to get you started in your search for wind energy:

http://www.awea.org/faq/rsdntqa.html

The actual energy output will depend on wind strengths and durations in your area. Good luck!

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Answer by Chester
it will cost about $ 150 and how long??well it depends if you install it fast and might be around 3-4 days you can genertae your own free electricity..

http://www.windpowercost.org/

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Answer by vicinic
no, you can make solar energy at night, and your wind turbine makes maximum energy when the wind has stopped.

Are you serious or did you not write you question correctly.

Answer by Stephen M
Austin,

This is a nonsense question which I know you already have to know the answer to. Clearly those systems do not “work” when the sun is not shining and the wind is not blowing. The only way they would “work” in a sense is if there were some sort of energy storage system.

Answer by nerfer
There are some options. For either, you can tie them to the grid, and hopefully one area will have a surplus when another area is in the doldrums. Electricity is already transferred long distances, so this is not new, but load balancing is an issue, and there are problems with new power sources being added to the grid.
For solar, first maximum energy load is during the day, particularly on hot days when the A/C is needed, so solar plants can take the place of natural gas “peaker” plants, used to help with a peak load. Second, if you have solar thermal (as opposed to solar photovoltaic), you can heat up a mass which retains its heat, and then use that heat later. This could work for several days of heavy clouds, but overall power production would eventually be reduced. Photovoltaics work rather well in light overcast situations, it doesn’t need a clear blue sky.

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Answer by billrussell42
wind makes the blades turn, that turns a generator that makes electricity.

for more detail, look at wikipedia “wind turbine”

Answer by mensajeroscuro
Well, a turbin works by recieving a flux of air at certain speed. This air hits the “fins” of the turbine and because of this they begin moving in a circular way. Then the air leaves the turbine with les kinetic energy than it had before and the rotational movement of the fins is the win’s energy turned into mechanical energy. This can be used to move an electric generator or anything else that needs mechanical energy.

Hope this helps.

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Answer by wigginsray
What makes you think that they do?

Everyone is “for” wind and solar energy unless it happens to be near their home.

Answer by davidmi711
They don’t. Total BS.

Answer by essie
who stated that we do?
I have never heard that.

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