1. Energy Resources

2. Where does our electricity, heat, and fuel come from?

3. Nonrenewable Resources
Resources that are used up more quickly than they can naturally be replaced.

4. Non-Renewable -examples

5. Renewable Resources
Any natural resource that is recycled or replaced constantly by nature.

6. Renewable Resources -examples

7. U.S. Energy Use Totals 2009

8. Make electricity by turning a generator

9. Fossil Fuels the fuel is burned to boil water to make steam
the steam makes a turbine spin
the spinning turbine turns a generator which produces electricity
the electricity goes to the transformers to produce the correct voltage

10. Fossil Fuels (Oil, Coal, Natural Gas)
Advantages
Inexpensive
Currently widely available
Disadvantages
Non-renewable
Polluting
Dangerous to mine (coal)

11. Nuclear Energy

12. Nuclear Energy Advantages Disadvantages
Less polluting than fossil fuels
Provides a great amount of energy inexpensively
Disadvantages
Non-renewable
Radioactive waste (dangerous)

13. Solar Energy

14. Solar Energy Advantages Disadvantages Non-polluting Inexhaustible
Expensive technology
Must have sunny area

15. Wind Energy

16. Wind Energy Advantages Disadvantages Non-polluting Renewable
Visual pollution (large windmills)
Windy area needed

17. Hydroelectric Energy

18. Hydroelectric Energy Advantages Disadvantages Non-polluting Renewable
Flooding (destroys land/habitats)
Destroys fish migration routes

19. Geothermal Energy

20. Geothermal Energy Advantages Disadvantages Non-polluting Inexhaustible
Costly to dig deep into Earth

21. Biomass –garbage, wood

22. Biomass Energy Advantages Disadvantages Quick to replace Renewable
Inexpensive
Disadvantages
Pollution produced when products are burnt