Wind turbines are a great way to help the planet. They are one of many substitutes for coal and other fossil fuels. A fossil fuel is a natural product that has been formed over millions of years; however the supplies are running low. Fossil fuels contain co2 however this is a powerful 'greenhouse gas' which pollutes the atmosphere - trapping all heat inside the invisible blanket covering the Earth.
Wind turbines are healthy for the environment because of the lack of pollution entering the atmosphere. Wind turbines work off a simple system: as the wind passes by, it makes the blades spin around. The blades, attached to the rotor - which is a part inside of the turbine - in turn, spin the shaft. The shaft is a gearbox which increases the speed of the spinning blades enough to power the electricity generator. The generator converts mechanical energy of the moving wind into electricity energy.
Less than 1% of land is taken up by the base of the turbines. This land could be used to rent out by farmers.
One turn of a wind turbine could power a full family house for a whole 24 hours!
Wind turbines last for up to 20 years so will not have to be replaced for a while.
"the UK has the best wind resources in Europe." - The sustainable development commission
a group of wind turbines is called a wind farm.
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