1. 11.1 Fossil Fuels to Electricity
Unit 11: Energy
May 19, 2009
Unit 11: Energy

2. Homework Questions
Explain how fossil fuels are used to produce electricity.
Distinguish between renewable and non-renewable resources.
Explain how out major sources of energy are dwindling
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Unit 11: Energy

3. August 14, 2003
The electricity blackout on August 14, 2003, highlighted the fragility of our electricity system and unleashed a torrent of proposals to upgrade it.
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Unit 11: Energy

4. Satellite composite image shows the lack of night lights.
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Unit 11: Energy

5. Electricity: Energy on Demand
Enormous amounts of electric energy can be transported through a wire the diameter of a quarter.
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Unit 11: Energy

6. Electric Generator
Huge electric generators used in power plants require great amounts of energy for conversation into electricity.
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Unit 11: Energy

7. Fossil Fuels Takes hundreds of millions of years to form. Formed from
Plants & animals
Fossil Fuels include
Coal
Oil
Natural gas
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Unit 11: Energy

8. Energy Sources Transportation Industry Electricity Commercial, public
World 16% - US 25%
Industry
World 28% - US 19%
Electricity
World 19% - US 29%
Commercial, public
World 17% - US 15%
Other
World 20% - US 12%
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Unit 11: Energy

9. Coal Powered Diagram May 25, 2019 Unit 11: Energy
Coal-fired units produce electricity by burning coal in a boiler to heat water to produce steam. The steam, at tremendous pressure, flows into a turbine, which spins a generator to produce electricity. The steam is cooled, condensed back into water, and returned to the boiler to start the process over.
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Unit 11: Energy

10. Coal-fired units produce electricity by burning coal in a boiler to heat water to produce steam.
The steam, at tremendous pressure, flows into a turbine, which spins a generator to produce electricity.
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Unit 11: Energy

11. Energy Sources Oil Coal Natural Gas Nuclear Power Other
World 40% - US 43%
Coal
World 28% - US 24%
Natural Gas
World 20% - US 23%
Nuclear Power
World 6% - US 7%
Other
World 6% - US 3%
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Unit 11: Energy

12. Dwindling Supplies of Fossil Fuels
The Hubbert peak theory posits that for any given geographical area, from an individual oil-producing region to the planet as a whole, the rate of petroleum production tends to follow a bell-shaped curve. It is one of the primary theories on peak oil.

13. Renewable Energy Resources
Wind
The modern of windmills are called wind turbines, or wind generators, and are used to generate electricity.
Solar Energy
Solar panels like that seen at right, generate electricity.
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Unit 11: Energy

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Unit 11: Energy

15. Nonrenewable Energy Resources
Non-renewable resources are energy resources that take to long to regenerate.
Oil, coal & natural gas took hundreds of millions of years to form.
Geologic forces such as the hypsithermic climate of the Eocene period must be duplicated.
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Unit 11: Energy

16. May 25, 2019
Unit 11: Energy