Energy conservation


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Energy conservation

  2. 2. Types of Energy <ul><li>Energy can be broadly divided into two categories- </li></ul><ul><li>Renewable Energy </li></ul><ul><li>Non Renewable Energy </li></ul>
  3. 3. Renewable Energy <ul><li>Renewable energy can be generated continuously practically without decay of source. E.g.- </li></ul><ul><li>Solar Energy </li></ul><ul><li>Wind Energy </li></ul><ul><li>Geothermal Energy </li></ul><ul><li>Hydro Energy </li></ul>
  4. 4. Solar Energy <ul><li>Solar energy can be converted into electrical energy by using solar panels, or alternatively, be used as thermal energy using solar water heaters, solar cookers etc. </li></ul>
  5. 5. Wind Energy <ul><li>India is world’s third largest producer of electricity generation using wind power by wind mills. </li></ul>
  6. 6. Hydro Energy <ul><li>Using dams, water is allowed to pass through turbine blades, which produces electricity. In India, after coal, most of the energy is produced by this method. </li></ul>
  7. 7. Non Renewable Energy <ul><li>Non renewable energy cannot be generated again and again, e.g. energy generated from combustion of fossil fuels, energy from coal and gas etc. </li></ul>
  8. 8. Energy <ul><li>Energy can neither be generated nor it can be destroyed. It can only be converted from one form to another. </li></ul><ul><li>For example, in a room heater, electrical energy is converted to the thermal energy. </li></ul><ul><li>Turbine converts mechanical energy stored in steam to electrical energy. </li></ul>
  9. 9. Why to Conserve? <ul><li>We have limited fuels available on earth. </li></ul><ul><li>Our demand for energy is increasing day-by-day. </li></ul><ul><li>It is possible that someday, most of fuels will be exhausted, and we will have to switch over to alternate energy. </li></ul>
  10. 10. Limited Fuels <ul><li>At present consumption levels- </li></ul><ul><li>Crude oil will last only for 40 years. </li></ul><ul><li>Gas will last for 60 years. </li></ul><ul><li>Coal will be finished in nearly 200 years. </li></ul><ul><li>Ever thought of life without oil and gas? </li></ul>
  11. 12. Increasing Consumption <ul><li>Furthermore, our consumption is increasing day-by-day. </li></ul><ul><li>This means fuels will last much earlier than expected. </li></ul><ul><li>The only solution is ….. </li></ul>
  12. 13. Energy Conservation
  13. 14. What Can We Do? <ul><li>We, the children can do our bit to save energy. We should not waste energy in school or at home. </li></ul>
  14. 15. In School <ul><li>Always switch off lights and fans while going out of the class. </li></ul>
  15. 16. In School <ul><li>In computer lab, we should switch off computers before going out of class. </li></ul>
  16. 17. In School <ul><li>If there are less students in the class, we should sit together so that some fans can be switched off. (NOT IN EXAMS!) </li></ul>
  17. 18. At Home <ul><li>We should not keep light and fan unnecessarily switched on. </li></ul>
  18. 19. At Home <ul><li>Tell mother to take material out from fridge if it is to be heated, some time earlier so that cooking gas consumption is low. </li></ul>
  19. 20. At Home <ul><li>We should not open fridge door frequently. </li></ul>
  20. 21. At Home <ul><li>Watching interesting programs on TV is interesting, but afterwards, TV should be switched off. </li></ul>
  21. 22. At Home <ul><li>While going to purchase new products, e.g. refrigerator, geysers, CFL etc., we should insist upon purchasing a five star product rather than cheap and energy waster product. </li></ul>
  22. 23. So, <ul><li>Remember to replace light bulbs with CFLs so electricity could be available for more time. </li></ul><ul><li>You can also ask your parents for a chocolate or some other gift after reducing your electricity bill. </li></ul>
  23. 24. What Else can be Done? <ul><li>We should discuss energy conservation with our friends and tell others how can we reduce energy consumption. </li></ul>