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  1. 2. Alternative energy
  2. 3. <ul><li>Energy is: </li></ul><ul><ul><li>the ability to do work </li></ul></ul><ul><ul><li>Let’s look at some sources of energy: </li></ul></ul>
  3. 5. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  4. 6. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  5. 7. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  6. 8. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  7. 9. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  8. 10. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  9. 11. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  10. 12. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  11. 13. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  12. 14. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  13. 15. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  14. 16. <ul><li>Non Renewable </li></ul><ul><li>Renewable </li></ul>
  15. 19. <ul><li>Pros </li></ul><ul><li>cons </li></ul><ul><li>easy to use </li></ul><ul><li>can use small amount of nuclear energy to produce large amount of power </li></ul><ul><li>have little or no competition at all </li></ul><ul><li>will expire some day </li></ul><ul><li>release toxic gases in the air </li></ul><ul><li>prices of these sources are soaring day by day </li></ul>
  16. 20. <ul><li>energy which is generated from natural sources i.e. sun, wind, rain, tides and can be generated again and again as and when required. They are available in plenty and are by far most the cleanest sources </li></ul>
  17. 21. <ul><li>available in the abundant quantity and free to use </li></ul><ul><li>have low carbon emissions </li></ul><ul><li>don't have to rely on any third country for the supply </li></ul><ul><li>can cost less than consuming the local electrical supply </li></ul><ul><li>Incentives for those who want to go green </li></ul>
  18. 22. <ul><li>Initial costs are quite steep </li></ul><ul><li>Solar energy can be used only during the day time </li></ul><ul><li>Geothermal energy can bring toxic chemicals beneath the earth surface onto the top </li></ul><ul><li>Hydroelectric can affect natural flow and affect wildlife </li></ul><ul><li>Wind turbines rely on strong winds and can affect bird population </li></ul>
  19. 23. <ul><li>protect our environment from drastic changes </li></ul><ul><li>save the depleting resources for our future generations </li></ul><ul><li> </li></ul>