Wind power 2012
Presentation 5th October 2012
- How much electricity is generated in one plant? The worldwide capacity of wind turbines is 238 gigawatts. In 2011 the wind generated about 3% of global electricity consumption.
- Is it renewable? Yes, because it comes from natural resources such as sunlight, wind, rain, tides, waves and geothermal heat, which are renewable (naturally replenished).
Question 1.How does it works:
Wind energy, at present, serves to transform the wind into electricity. This is thanks to the wind turbines, large mills of between 40 and 50 meters and propellers up to 23 meters in diameter. The wind force causes it to move the propeller wind turbine, thanks to the rotor of a generator converts this force into electrical energy. At the back, a vane directs him to know where the wind comes. These large machines are grouped in so-called wind farms.
Question 2.Where can you find plants of this source and why?
Dutch student 1
question 3 Can it be used in Spain/The Netherlands?
Wind mills have to stand in the mountains or in country's were there is much wind like in the Netherlands. Because mountains are higher then the rest of the land. In and how higher how more wind. So in Spain it is good to have Wind Mills because there are much mountains. In the Netherlands you shout think that it isn't a good land for wind mills. But in the Netherlands there is much wind, so it can be used in the Netherlands. In the netherlands there is very much wind because it is flat and its next to the sea
question 4 Is it expensive?
Yes it is expensive, it is about 3.5 million totaly installed. So it is pretty expensive. But it is better for the enviroment, and i think it´s cheaper for the goverment because they get energy of the windmills
- This is all the information we have got. we all worked on it but we found it more convenient put everything on one page.
What are the effects on the nature?
Because of the wind power there comes less CO² free so that is better for the environment but because of the windmills there are more birds killed caused by collisions.
What are the advantages?
- you don't have to pay for the wind and the windmills don't need any fuel.
- it doesn't produces waste or greenhouse gasses.
- the land beneath the wind farm can usually still be used for farming.
- wind farms could be a tourist attraction
- it's a good method of supplying energy to remote areas.
What are the disadvantages?
- some days there is no wind so then we don´t get any wind energy.
- suitable areas for wind farms are often near the coast. there the land is expensive.
- some people feel that covering the landscape with these windmills is unsightly.
- it can kill birds
- can affect television reception if you live nearby.
- can be noisy if you live nearby.
Is it sustainable?
Yes because wind power generates electricity with...
- No air emissions
- No fuel to mine, transport, or store
- No cooling water
- No water pollution
- No wastes
Is it expensive?
Yes it is expensive, it is about 3.5 million totally installed. So it is pretty expensive. But it is better for the environment, and I think it´s cheaper for the government because they get energy of the windmills.
How does it work?
The Sun heats our atmosphere unevenly, so some places become warmer than other places. These warm places of air rise, some other air blows in to replace it – and then we feel a wind which is blowing. We can use the energy of the wind. But first we have to build a tall tower, with a large propellor on the top of the tower. We want to build more of these ‘windmills’, so we get a ‘wind farm’ and we produce more energy. The more towers, the more wind, and the larger propellors, the more energy we get from this windmills.
AC (alternating current) = a specific type of electric current in which the direction of the current’s flow is reversed, or alternated, on a regular basis
DC (direct current) = no different electrically from alternating current except for the fact that it flows in the same direction at all times
Where can you find ‘electricity generating plants’ of this source and why?
The best places for wind farms are the coastal areas, at the tops of the rounded hills, open plains and gaps in mountains. There the windmills are placed because there the wind is strong and available.
Can it be used in the Netherlands or in other countries, why/ why not?
Wind mills have to stand in the mountains or in countries where there is much wind like in the Netherlands. Because mountains are higher than the rest of the land. In and how higher how more wind. So in Spain it is good to have Wind Mills because there are much mountains. In the Netherlands you shout think that it isn't a good land for wind mills. But in the Netherlands there is much wind, so it can be used in the Netherlands. In the Netherlands there is very much wind because it is flat and its next to the sea.
are you dependent of other countries/people when you want to generate electricity with this energy source? isolated places like farms could have their own wind mills. In for example California, some plants supply electricity to homes around Los Angeles. So Spain and Holland are not dependent of other countries or people when we want to generate electricity with wind power. Where is your contribution? This is insufficient!--L.Doolaard (talk) 18:29, 2 October 2012 (CEST) I'm sorry it was not on wiki de vega, I tought I had saved it but apparently it wasn´t.