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Wind Power
Wind power is derived from the conversion of wind energy to become a useful form of energy to propel ships, make electricity or pump water. Wind is a renewable source of energy that is widely available and produces no harmful emission during operation.
2,489 Questions
What is the name of the environmentally friendly electricity generated from the wind and sun?
green power
What kind of motor can you use to make a homemade wind generator?
For demonstration purposes you could use an ordinary small DC motor - like the kind used in a model railway engine, a toy motor car or model boat - driven by a light plastic propellor. Connect the motor to a flashlight bulb of about the same voltage as the motor.
You must be sure there is enough wind to drive the propellor and, to get the bulb to light up, you may have to try several different experimental set-ups. You will probably have to try using several different sizes of propellor along with various sizes of small flashlight bulb.
Another set of opinions
Wind is the Primary source for Generting power In case of Wind Energy System. Its a fact that Wind energy is not constant but variable, So We cannot Use conventional Synchronous Generator For power generation.Instead We Have to Use a variable Speed Prime mover. for eg. A Wind Turbine. It depends on Wind Velocity and uses the Kinectic Energy of wind for rotation. Since the Prime mover is running at Variable speed we need to connect a Asynchronous Generator to it which is an Induction Generator. All things I Said above are basics, i mean the Old technology. Today its almost outdated because as the It is Asynchronous Generation we cannot connect to our conventional Grid System, instead we Have to use it as a isolated power System. But Thanks to the modern Technology which is Pitch Control Techinque, ie, The blade angle of Prime mover Changes w.r.t wind nd Speed of turbine is maintained constant irespective of wind Velocity. Therefore now a day we can use Synchronous Generator In Wind power System.
Then going to the question asked, a ordinary Toy Car motor which Is DC that Runs on battery can be used For make An model of wind Power System For An exhibition purpose. In Real System the Prime Mover is wind Turbine not Motor that Runs the Generator.
Wind turbines convert what energy into electrical energy?
The propellors are attached to a shaft that turns a gearbox that turns an electric motor that produces electricity. You need to study how an electric motor generator works. A regular electric motor turns when electric current is run through it. There are coils of wire wound a rotating armature that is placed between Magnets. An electric generator is made very similar. When the wire coils are rotated within the magnetic field, this produces electricity.
What are examples of mechanical to electrical energy?
A steam turbine/generator in a power station, a small gasoline powered generator, or a 12v alternator in your car driven by the engine.
Why are wind turbines so high?
To get the maximum amount of wind. If they were low to the ground the wind levels would not be so high.
How much money will the electric company pay you per watt for excess energy you produce?
Depends upon which country you live in.
Most countries - nothing.
Germany, about 0.4euro per kilowatt hour.
How many homes can one turbine power?
Large wind turbines now produce about 2 MWe or 2000 kW, at maximum power. Depending on location which determines how much of the time you get enough wind but not too much requiring a shutdown to prevent the machine wrecking itself, you will get 1/3 of this on average. However if we stick with the max rating of 2000 kW, then if each house takes say 2 kW this will power 1000 houses. Now 2 kW will cover the lighting and power the heating system of the house (assuming this is not electric), ie it will just drive the circulating pump or fans, computer, TV, fridge, freezer, etc, but if you start electric cooking the power demand will rise sharply, probably at least 5 kW to cook a full meal for a family. Then you have other intermittent loads like dishwashers and clothes driers, which can amount to several kilowatts. This of course is why we have a grid system for delivery of electric power, in which some power plants can respond quickly to changes in load demand. Wind turbines are more suited to providing base or steady power, provided the wind conditions are right.
How can you make solar panels or windmill generators?
Check on line for books on these subjects and buy them. There are some DIY projects you can find online for free. Be careful of scams. You want cheap. I have seen black plastic pipe that was in a roll spread out on a south facing roof making steaming hot water. They call them bread boxes. Pipe inside a black box on the roof or by the swimming pool making hot water most the day. I saw a backyard with several wind mills. One was attached to a truck alternator.
Are there any pollutants produced by wind electricity?
There are no specific negative effects or by-products of using wind power.
On the other hand,
environmentalists opposing wind power often argue that large sums of migrating birds are killed by the blades of the turbines.
Dead bird pollution.
There is also the issue that there is no fossil fuel reduction because wind varies so much. All systems are rated at 28 mph. At 14 mph wind, we see 10% of rated. Over this we see zero output as the system shuts down. Because of this, fossil fuel plants run at capacity and we ignore their fuel consumption and output. In real terms, environmentalists that oppose these systems do so because they do nothing good at all! They produce almost no noticable power output when you factor in idling plants still using fuel. They are opposed because they do nothing good at all.
What is meant by power systems which is used in renewable energy technologies?
I'm not sure if I understand your question completely,
but I believe that you are asking about the ways that energy would be accumulated, stored, and distributed from any specific form of renewable energy production.
Does a wind turbine produce ac or dc?
Big wind turbines (as those in a wind farm) generate ac, because it is easier to connect them to the grid.
Most of the home turbines generate dc (trough a dc generator or an ac generator and a rectifier) i believe this is because they are often used to charge batteries.
The usual way to get ac out of a home dc wind turbine is using a power inverter, just as a photovoltaic system.
Where is wind energy being used?
Australia, America, many countries in Europe and around the world.
40% of Denmark's electricity comes from wind turbines.
Is a wind farm in central Scotland a good idea?
A wind farm in Scotland , in central Scotland is not at all a bad idea as it is a open area and plenty of wind is there for such use.
What percentage of world uses fossil fuels?
Almost perfectly 100%. Anyone who drives a car uses gas, anyone who receives electricity used some power from coal plants.
How much does wind power cost per kw hour?
It is very difficult to give a figure. The cost of wind generated power decreases with hours of wind. Within certain limits.
Typically wind power is inefficient because of the intermittent winds. Overall wind power is expensive.
How many tons of carbon are offset by 1 megawatt of wind power?
According to the American Wind Energy Association (AWEA), in 2008, the U.S. wind energy industry brought online approximately 8,500 megawatts (MW) of new wind power capacity. This production will help avoid nearly 44 million tons of carbon emissions the equivalent of taking 7 million cars off the road. Therefore,
for every megawatt of installed capacity, a wind farm can potentially earn approximately 5,175 tons of CO2e
the equivalent of taxing approximately 820 cars off the road.
Read more: http://www.articlesnatch.com/Article/What-Are-The-Carbon-Offset-Benefits-Of-A-Wind-Farm-/826170#ixzz0fF9gW8Fa
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