1. Energy Efficiency and Renewable Energy G. Tyler Miller’s Living in the Environment 14 th Edition Chapter 18 G. Tyler Miller’s Living in the Environment 14 th Edition Chapter 18

2. Key Concepts  Improving energy efficiency  Types and uses of solar energy  Types and uses of flowing water  Uses of wind energy  Types and uses of biomass  Use of geothermal energy  Use of hydrogen as a fuel  Decentralized power systems

3. The Importance of Improving Energy Efficiency  Energy efficiency Fig. 18-3 p. 381  Net energy efficiency Least Efficient  Incandescent lights  Internal combustion engine  Nuclear power plants

4. Energy Efficiencies (Fig. 18-5 p. 381)

5. Ways to Improve Energy Efficiency  Cogeneration  Efficient electric motors  High-efficiency lighting  Increasing fuel economy  Alternative vehicles  Insulation  Plug leaks

6. Hybrid and Fuel Cell Cars  Hybrid electric-internal combustion engine  Fuel cells Fig. 18-9 p. 385

7. Using Solar Energy to Provide Heat  Passive solar heating  Active solar heating Fig. 18-16 p. 391

8. Using Solar Energy to Provide High- Temperature Heat and Electricity  Solar thermal systems  Photovoltaic (PV) cells Fig. 18-20 p. 394 Fig. 18-21 p. 395

9. Producing Electricity from Moving Water  Large-scale hydropower  Small-scale hydropower  Pumped-storage hydropower  Tidal power plant  Wave power plant

10. Large-scale Hydroelectric Power: Trade-offs Fig. 18-22 p. 396

11. Reviewing the Trade-offs of Hydropower Dams Fig. 15-9 p. 313

12. Producing Electricity from Wind Fig. 18-23 p. 396Fig. 18-24 p. 397

13. Producing Energy from Biomass  Biomass and biofuels  Biomass plantations  Crop residues  Animal manure  Biogas  Ethanol  Methanol Fig. 18-25 p. 398

14. Geothermal Energy  Geothermal heat pumps  Geothermal exchange  Dry and wet steam  Hot water  Molten rock (magma)  Hot dry-rock zones

15. The Hydrogen Revolution  Extracting hydrogen efficiently  Storing hydrogen  Fuel cells  Environmentally friendly hydrogen

16. The Hydrogen Revolution Fig. 18-31 p. 403

17. Entering the Age of Decentralized Micropower  Decentralized power systems  Micropower systems Fig. 18-32 p. 405

18. Solutions: A Sustainable Energy Strategy Fig. 18-35 p. 407