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Page 1
• A source or supply from which benefit is
  produced.

                 3 main characteristics:
                 Utility
                 Limited availability
                 Potential for depletion or
                 consumption.


                                               Page 2
Page 3
• A natural resource.
• Ability to reproduce through
  biological or natural processes
  and replenished with the
  passage of time.
• Are part of our natural
  environment and form our eco-
  system .

                              Page 4
•   Solar energy
•   Tides
•   Winds
•   Geothermal
•   Biomass and
•   Other natural elements.


                          Page 5
• Gasoline,
• Coal
• natural gas,
• diesel and
• other commodities derived
  from fossil fuels.
• minerals like copper and
  others without a sustainable
  yield.                   Page 6
Renewable resources




                      Page 7
Solar energy




               Page 8
• Energy derived from the sun in the
  form of solar radiation.
• It is the most readily available and
  free source of energy since prehistoric
  times.
• India receives solar energy in the
  region of 5 to 7 kWh/m2 for 300 to
  330 days in a year.




                                     Page 9
• This energy is sufficient to set up 20
  MW solar power plant per square
  kilometer land area.
• Solar thermal route uses the sun's
  heat to produce hot water or
  air, cook food, drying materials etc.
• Solar photovoltaic uses sun’s heat
  to produce electricity for lighting
  home and building, running
  motors, pumps, electric
  appliances, and lighting.
                                     Page 10
Solar Flat plate collector



                             Box type solar cookers:




                                                       Photovoltaic Domestic
Wind Energy




              Page 12
Wind Energy

• Harnessing of wind power to produce
  electricity.
• The kinetic energy of the wind is converted
  to electrical energy.




                                          Page 13
• When solar radiation enters the
  earth’s atmosphere, different
  regions of the atmosphere are
  heated to different degrees because
  of earth curvature.
• This heating is higher at the equator
  and lowest at the poles.
• Since air tends to flow from warmer
  to cooler regions, this causes winds,
  and it is these airflows that are
  harnessed in windmills and wind
  turbines to produce power

                                    Page 14
Page 15
Bio Energy
• A renewable energy resource
  derived from the carbonaceous
  waste of various human and
  natural activities.
• Derived from numerous
  sources, including the by-products
  from the wood
  industry, agricultural crops, raw
  material from the
  forest, household wastes etc.


                                 Page 16
• Does not add carbon dioxide to
  the atmosphere as it absorbs the
  same amount of carbon in
  growing as it releases when
  consumed as a fuel.
• Advantage is used to generate
  electricity with the same
  equipment that is now being
  used for burning fossil fuels.




                               Page 17
Biogas

• Bio-energy, in the form of biogas, which is
  derived from biomass,
• Is expected to become one of the key
  energy resources for global sustainable
  development.




                                          Page 18
Hydro Energy

• The potential energy of falling
  water, captured and converted
  to mechanical energy by
  waterwheels.
• Water under pressure flows
  through a turbine causing it to
  spin. The Turbine is connected
  to a generator, which produces
  electricity
                               Page 19
Hydro Power Plant




                    Page 20
Tidal Energy

• Tidal electricity generation
  involves the construction of a
  barrage across an estuary to
  block the incoming and outgoing
  tide.
• The head of water is then used
  to drive turbines to generate
  electricity from the elevated water
  in the basin as in hydroelectric
  dams.

                                  Page 21
Page 22
Let’s contribute for a   Greener Planet…




                                       Page 23
Page 24

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Resources

  • 2. • A source or supply from which benefit is produced. 3 main characteristics: Utility Limited availability Potential for depletion or consumption. Page 2
  • 4. • A natural resource. • Ability to reproduce through biological or natural processes and replenished with the passage of time. • Are part of our natural environment and form our eco- system . Page 4
  • 5. Solar energy • Tides • Winds • Geothermal • Biomass and • Other natural elements. Page 5
  • 6. • Gasoline, • Coal • natural gas, • diesel and • other commodities derived from fossil fuels. • minerals like copper and others without a sustainable yield. Page 6
  • 8. Solar energy Page 8
  • 9. • Energy derived from the sun in the form of solar radiation. • It is the most readily available and free source of energy since prehistoric times. • India receives solar energy in the region of 5 to 7 kWh/m2 for 300 to 330 days in a year. Page 9
  • 10. • This energy is sufficient to set up 20 MW solar power plant per square kilometer land area. • Solar thermal route uses the sun's heat to produce hot water or air, cook food, drying materials etc. • Solar photovoltaic uses sun’s heat to produce electricity for lighting home and building, running motors, pumps, electric appliances, and lighting. Page 10
  • 11. Solar Flat plate collector Box type solar cookers: Photovoltaic Domestic
  • 12. Wind Energy Page 12
  • 13. Wind Energy • Harnessing of wind power to produce electricity. • The kinetic energy of the wind is converted to electrical energy. Page 13
  • 14. • When solar radiation enters the earth’s atmosphere, different regions of the atmosphere are heated to different degrees because of earth curvature. • This heating is higher at the equator and lowest at the poles. • Since air tends to flow from warmer to cooler regions, this causes winds, and it is these airflows that are harnessed in windmills and wind turbines to produce power Page 14
  • 16. Bio Energy • A renewable energy resource derived from the carbonaceous waste of various human and natural activities. • Derived from numerous sources, including the by-products from the wood industry, agricultural crops, raw material from the forest, household wastes etc. Page 16
  • 17. • Does not add carbon dioxide to the atmosphere as it absorbs the same amount of carbon in growing as it releases when consumed as a fuel. • Advantage is used to generate electricity with the same equipment that is now being used for burning fossil fuels. Page 17
  • 18. Biogas • Bio-energy, in the form of biogas, which is derived from biomass, • Is expected to become one of the key energy resources for global sustainable development. Page 18
  • 19. Hydro Energy • The potential energy of falling water, captured and converted to mechanical energy by waterwheels. • Water under pressure flows through a turbine causing it to spin. The Turbine is connected to a generator, which produces electricity Page 19
  • 20. Hydro Power Plant Page 20
  • 21. Tidal Energy • Tidal electricity generation involves the construction of a barrage across an estuary to block the incoming and outgoing tide. • The head of water is then used to drive turbines to generate electricity from the elevated water in the basin as in hydroelectric dams. Page 21
  • 23. Let’s contribute for a Greener Planet… Page 23