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Energy Resources

Energy Resources. FOSSIL FUELS. Energy-rich substances formed from the remains of organisms. Fossil fuels are made of hydrocarbons. (made of carbon and hydrogen). What are some fossil fuels?. Coal. Oil. Natural Gas. Fossil Fuels.

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Energy Resources

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  1. Energy Resources

  2. FOSSIL FUELS • Energy-rich substances formed from the remains of organisms. • Fossil fuels are made of hydrocarbons (made of carbon and hydrogen). • What are some fossil fuels? • Coal • Oil • Natural Gas

  3. Fossil Fuels • Fossil fuels are a very cheap, efficient way to produce energy! • However… • Burning Fossil fuels creates POLLUTION. • Coal mining is dangerous and destroys the Earth’s landscape. • Fossil Fuels are NOT a renewable resource. Once we’ve burned them all, they’re gone!!

  4. ENERGY SOURCE PIE CHART

  5. COAL • Solid fossil fuel formed from plant remains in swampy areas.

  6. COAL FORMATION

  7. OIL Thick, black , liquid fossil fuel formed from the remains of small animals, algae and other organisms that lived in the ocean.

  8. What is the problem with the projected trend of CO2 production?

  9. Alternative Energy!

  10. What is Alternative Energy? • An energy source that can be used instead of fossil fuels. • It is usually a renewable source of energy that could be used if fossil fuels run out!

  11. Solar panels generate electricity directly from sunlight with special materials. Solar electricity can also be generated from the sun’s heat instead of burning fossil fuels. Solar Energy

  12. Passive Solar Heating– uses Sun’s solar energy to heat something directly

  13. Active Solar Heating – Energy from the Sun is gathered by collectors and used to heat water or heat a building.

  14. Photovoltaic Cells – Energy from the Sun is gathered by collectors and used as direct electricity.

  15. Solar Power Tower – Heliostats (mirrors) focus sun’s light on a central receiving tower. • A liquid is heated inside of a pipe. • Hot pipe comes in contact with water & makes steam

  16. Solar Energy • Disadvantages • Expensive to install/build • Need battery back up for night & cloudy days • Land-intensive • Advantages • “Fuel” is free (the sun) • Provides endless heat & light • It’s non-polluting

  17. Wind Energy • Uses wind to turn a turbine to create energy • In 10 years, 10-15% of the country’s demand for electricity could be meet by wind power!

  18. Wind Farm – large array of wind turbines that collectively generate electricity - Sun & convection produce wind

  19. Wind Energy • Disadvantages • Land-intensive • Large & Noisy • Hazardous to birds (flyways) • Consistent wind is on shoreline & mountainsides • Advantages • “Fuel” is free (sun  wind) • It’s non-polluting!

  20. Geothermal Energy • The thermal energy from the Earth is used to heat cities and create electricity.

  21. Advantages • “Fuel” is free (hot water) • There is an abundance of hot water underground • Non-polluting Geothermal Energy • Disadvantages • Steam in one location only lasts 10-15 years • Will not produce a high percentage of power • Overuse & reinjection may deplete hot water

  22. GEOTHERMAL ENERGY Geothermal: • Disadvantage #4: • Can only be used in areas that do not have active faults and where heated rock is close to the Earth’s surface.

  23. Bio-mass and Biofuels • Using plant or animal materials to create energy.

  24. Using Biofuels • Pros • Tree farms can restore degraded lands • Large potential supply • Cons • CO2 emissions if harvested and not planted back • Soil erosion, water pollution, and loss of habitat

  25. Water EnergyHydroelectric, tidal, etc. • The movement of water can be used to generate electricity!

  26. Hydroelectric Energy • Disadvantages • Sediments build up behind the dams • Reservoir floods land • Disrupts fish migration • Too much development to build new dams • Advantages • “Fuel” is free (sun  water cycle) • Water storage • High energy storage • Non-polluting

  27. HYDROELECTRIC POWER * Causes problems to natural river ecosystems.

  28. Tidal Energy – Energy produced from rising & falling tidal currents

  29. Advantages • “Fuel” is free (moon  tides) • The tides are a steady source of energy • It’s non-polluting Tidal Energy • Disadvantages • Limited use (area must have > 8 ft tidal range) • Block boat traffic • Hazardous to marine organisms • Corrosion in salt water

  30. NUCLEAR FISSION The splitting of an atom’s nucleus into smaller nuclei.

  31. Advantages • Energy is very concentrated in the Uranium (one pellet = 1780 lbs of coal = 149 gallons of oil!) • Non-polluting – only steam, not smoke • Disadvantages • Disposal of hazardous waste • Can be dangerous!! – meltdown or weapons Nuclear Energy

  32. Nuclear:

  33. Advantages of using natural sources of energy • They are renewable– they will always be available • They will not damage the Earth. • They are cleaner than Fossil Fuels.

  34. What type of Alternative Energy is being used?

  35. What type of Alternative Energy is being used?

  36. What type of Alternative Energy is being used?

  37. What type of Alternative Energy is being used?

  38. What type of Alternative Energy is being used?

  39. What type of Alternative Energy is being used?

  40. What type of Alternative Energy is being used?

  41. What type of Alternative Energy is being used?

  42. What type of Alternative Energy is being used?

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