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  1. 1. By Gary Saunders & Geoff Wass WIND POWER
  2. 2. Wind in the past <ul><li>We have used wind power for thousands of years but during the past 250 years steam engines, petrol engines and electricity took over from wind. </li></ul>
  3. 3. Wind Forever <ul><li>Wind is a renewable energy resource. It is a regular part of our weather, which is driven by energy from the sun. So as long as the sun keeps shining the wind will keep blowing. </li></ul>
  4. 4. Advantages Disavantages <ul><li>Renewable- as long as the sun shines the wind will blow </li></ul><ul><li>Clean source- no emissions of CO 2 , SO 2 and N0 x </li></ul><ul><li>Government initiatives to promote wind power </li></ul><ul><li>Large land area required to get sufficent energy. (expensive) </li></ul><ul><li>Only 3 Mw per turbine so 1000 are needed to produce same amount of energy as a power-station </li></ul>
  5. 5. How ? <ul><li>The kinetic energy of the wind is converted into rotational kinetic energy of the turbine. </li></ul><ul><li>The turbine drives the generator. The generator converts the kinetic energy into electrical energy </li></ul><ul><li>In strong winds the the blades of the turbine twist slightly. This slows the turbine down and prevents damage . </li></ul>
  6. 6. Wind Farm, Palm Springs, California
  7. 7. Wind Farm, Palm Springs , Canary Islands
  8. 8. Wind Farm, Tenerife, Canary Islands