Energy saving

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Energy saving

  1. 1. Pradeep Negi G.I.C. BHEL Hardwar Uttrakhand India
  2. 2. Types of Energy Energy can be broadly divided into two categories- • Renewable Energy • Non Renewable Energy
  3. 3. Non Renewable Energy • Non renewable energy cannot be generated again and again, e.g. energy generated from combustion of fossil fuels, energy from coal and gas etc.
  4. 4. Renewable Energy • Renewable energy can be generated continuously pratically without decay of source. E.g.- • Solar Energy • Wind Energy • Geothermal Energy • Hydro Energy • Biomass • Tidal
  5. 5. Solar Energy • Solar Energy can be converted into electrical energy by suing solar panels, or alternatively, be used as thermal energy using solar water heaters, solar cookers etc.
  6. 6. Wind Energy • India is world’s third largest producer of electricity generation using wind power by wind mills.
  7. 7. Hydro Energy • 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.
  8. 8. Biomass Energy • Biomass energy made from wood, wood waste, straw, manure, sugar cane, garbage, and agricultural waste. Biomass is organic material which has stored sunlight in the form of chemical energy.
  9. 9. Tidal Energy • The energy contained in ocean waves can potentially provide an unlimited source of renewable energy. Ocean waves are created by the interaction of wind with the surface of the sea. Sea-Gen tidal turbine, installed in Strangford Lough, County Down, Northern Ireland, (image courtesy of Marine Current Turbines (MCT))
  10. 10. Energy • Energy can neither be generated nor it can be destroyed. It can only be converted from one form to another. • For example, in a room heater, electrical energy is converted to the thermal energy. • Turbine converts mechanical energy stored in steam to electrical energy.
  11. 11. Why to Conserve ? • We have limited fuels available on earth. • Our demand for energy is increasing day-by-day. • It is possible that someday, most of fuels will be exhausted, and we will have to switch over to alternate energy.
  12. 12. Limited Fuels • At present consumption levels- • Crude oil will last only for 40 years. • Gas will last for 60 years. • Coal will be finished in nearly 200 years. • Even though of life without oil and gas?
  13. 13. Increasing Consumption • Furthermore, our consumption is increasing day-by-day. • This means fuels will last much earlier than expected. • The only solution is ………..
  14. 14. What Can We Do ? • We , the children can do our bit to save energy. We should not waste energy in school or at home.
  15. 15. In School • Always switch off lights and fans while going out of the class.
  16. 16. In School • In computer lab, we should switch off computers before going out of class.
  17. 17. In School • If there are less students in the class, we should sit together so that some fans can be switched off.
  18. 18. At Home • We should not keep light and fan unnecessarily switched on.
  19. 19. At Home • Tell mother to take material out from fridge if it to be heated. Some time earlier so that cooking gas consumption is low.
  20. 20. At Home • We should not open fridge door frequently.
  21. 21. At Home • Watching interesting program on TV is interesting, but afterwards, TV should be switched off.
  22. 22. At Home • 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. AC GEYSERS
  23. 23. So, • Remember to replace light bulbs with CFLs so electricity could be available for more time. • You can also ask your parents for a chocolate or some other gift after reducing your electricity bill. CFL LED LED
  24. 24. What Else can be Done ? • We should discuss energy conservation with our friends and tell others how can we reduce energy consumption.
  25. 25. Thank you Pradeep Negi Lecturer Economics Govt. Inter College BHEL Hardwar Uttrakhand Mob. 9720893445 Email Add. pradeepnegi70@rediffmail.com pradeepnegilecturer@gmail.com Blogs- http://economicslearning.blogspot.com http://gicbhelhardwaruk.blogspot.com

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