what generates our wind?
144302
Hot air is lighter than cold air.\nWhen the ground is heated up by the sun, the air above it heats up too.\nThe warmer air near the ground gets pressed down on by the cold air above it.  When this happens, the air is essentially 'squeezed' out as the colder air moves into the area.\nAny time there is a difference between temperature of different layers of air, there is often movement between those layers to create a blance between them.  They cannot just switch places because one blocks the other, so they tend to move out of each other's way.\nIf you have enough of a difference in temperatures, you can end up with differences in pressure over an entire area.  When these pressure zones collide, they can result in heavy winds or even large storms.
929901
The evaporation from the ocean makes hot air.  Hot air moves creating charges.
915827
Very simply, blowing wind spins the blades on a wind turbine -- just like a large toy pinwheel. The spinning blades turn a generator that makes electricity. \nwind Mills use blades to collect the wind’s kinetic energy. Windmills work because they slow down the speed of the wind. The wind flows over the airfoil shaped blades causing lift, like the effect on airplane wings, causing them to turn. The blades are connected to a drive shaft that turns an electric generator to produce electricity. \n\n\n"Basically, a wheel turns and it has a set of gears inside of it," he describes. "It has a stroke mechanism and the motor that goes up and down. There is a rod attached down to the top of the well and you have pipe and another sucker rod that goes all the way down to a solder down in the water in the well." \n\n\nThe biggest benefit of windmills is that they use a free source of energy to make more energy. As the wind blows, it turns the blades on the windmill, forcing the gears down below to react. Depending on what the windmill's specific purpose is, a windy day can provide a significant amount of energy for free. \n\n\n"Windmills get their power from the wind," Russ says. "The wind basically just turns a wheel. It has a couple of check valves and a few cup leathers down there so that it just lifts the water."
368898
It is renewable since warmth from the sun generates new wind all the time.\n\nThis is the opposite of oil.  Oil takes so long to produce that we use it up much faster than it is created in the earth.  We can actually use up all the oil.
929539
wind is caused by the movement of air from regions of high atmospheric pressure to regions of low atmospheric pressure.  high pressure is caused by the cooling of air: as air cools, it shrinks and becomes more dense and its pressure therefore increases.  low  pressure is caused by the heating of air: as air warms, it expands and becomes less dense and its pressure therefore decreases.\nrain is caused by the rising of columns of air: when a bubble of air is warmer than its surroundings, it expands and becomes less dense.  this less dense air rises, and as it rises, it gets cooler.  as it cools, it becomes less able to hold moisture.  eventually, you reach a point at which the air can no longer get any cooler without having to lose some moisture.  it is at this point that clouds and rain start to form.\nyou get storms if you have the right combination or rain, wind, air pressure, humidity, and clouds.
370797
The Sun.\n\nEDIT: Yes, what other people have said about the Earth's tilt and whatnot are true in that they affect the atmosphere, but you asked for the source of energy. That is solely the Sun.
64932
differece in air pressure from different spots in the world. some high some low as they all try to form a balance this creates wind. air pressure can be affected by temperature
252829
what's the heat source?
742485
wind is the result of air pressure, air molecules travel from low to high pressure zones, resulting from air warmed by the sun. The strength of the wind i guess would be dictated by the difference in pressure between two zones, and any obstacles it may have to pass over/through in between...
948487
air naturally comes from high pressure fronts to low pressure fronts\n\nalso if you look at weather maps those wierd looking squiggly lines \nthe closer together they are the higher wind speed you'll have
610297
There is not enough wind power being generated for everyone who might want to buy it. And I would be suspicious too. How do you really KNOW that all your electricity comes from wind? Just because the electric company says it does? And you believe them? Wind power is just put on the power grid with all the other electricity, so it is all mixed up. You are depending on accountants at your power company to correctly calculate, second by second, that all the power from wind entering the network equals or exceeds all the power being used by customers paying extra to get wind power. I am not sure I trust them to do that.
543373
We have air around us. The atmosphere has high preasure and low preasure. When the high preasure area turns into low preasure, the air moves from high preasure area towards the low preasure. This movement of air from one area to another causes the wind. \n\nIt has nothing to do with clouds. The faster the low preasure area is formed, depends on whether you have clouds, or thunderstorms. Low preasure areas causes rain. This is why normally you have winds before the rain.
884328
Wind-driven currents, like any type of currents, transport heat energy in the oceans.
385490
Yes wind is definitely a renewable energy source. Take a look at the link provided for more info on RES and other examples.
252469
Generator generates electricity. It has a wire armeture mounted in an electic field. When the wire armeture is rotated, electric current is induced in the armeture du to change in magnetic flux.
65421
Wind is just moving air which id technically a mixture of particles and gaseous molecules. The earth's rotational spin and pressure systems causes movement. These mixture is microscopic yet you feel the effect of the movement as the friction caused when brushing on your body and hence wind. You cannot see wind with the naked eye but a lot of different particles are found within the atmospheric composition.
469524
It has to do with high and low pressure systems. Wind moves from high-pressure areas to low-pressure areas.