1. Environmental Science 5e
Chapter 16
Energy: Some Basics
Botkin and Keller
Environmental Science 5e

2. Environmental Science 5e
Energy Basics
Energy: the ability to do work
Potential Energy: energy that is stored
Kinetic Energy: energy of motion
- All energy is potential and kinetic
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Environmental Science 5e

3. Environmental Science 5e
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Environmental Science 5e

4. Environmental Science 5e
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Environmental Science 5e

5. Environmental Science 5e
Energy Efficiency
First Law Efficiency
The amount of energy without any consideration of the quality of availability of the energy
Second Law Efficiency
How well matched the energy end use is with the quality of the energy source
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Environmental Science 5e

6. Environmental Science 5e
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Environmental Science 5e

7. Environmental Science 5e
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Environmental Science 5e

8. Energy Conservation, Increased Efficiency and Cogeneration
Conservation: getting by with less demand for energy
Energy Efficiency: designing equipment to yield more energy output from a given amount of input energy
Cogeneration: a number of processes designed to capture and use waste heat rather than simply to release it into the atmosphere
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Environmental Science 5e

9. Environmental Science 5e
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Environmental Science 5e

10. Environmental Science 5e
Energy Policy
Hard Path vs. Soft Path
Hard Path: finding greater amounts of fossil fuels and building larger power plants
Soft Path: involves energy alternatives that emphasize energy quality and flexibility
Energy for Tomorrow
Integrated, Sustainable Energy Management
Integrated Energy Management: no single energy source can provide all the energy required by the world
Sustainable Energy Management: provides reliable sources of energy without causing serious harm, all while ensuring that future generation inherit a fair share of Earth’s resources
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Environmental Science 5e

11. Environmental Science 5e
Botkin and Keller
Environmental Science 5e

12. Environmental Science 5e
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Environmental Science 5e