1. Energy Efficiency and Renewable Energy
G. Tyler Miller’s
Living in the Environment
14th 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
Net energy efficiency
Least Efficient
Incandescent lights
Nuclear power plants
Internal combustion engine

4. Energy Efficiencies (Fig. 18-5 p. 381)
Ways to Improve Energy Efficiency
Cogeneration
Efficient electric motors
High-efficiency lighting
Increasing fuel economy
Alternative vehicles
Insulation
Plug leaks

5. Hybrid and Fuel Cell Cars
Fuel cells
Hybrid electric-internal combustion engine

6. Using Solar Energy to Provide High-Temperature Heat and Electricity
Solar thermal systems *
Photovoltaic (PV) cells

7. Using Solar Energy to Provide Heat
Passive solar heating
Active solar heating
Examples:
Enertia home
Earthships
Solar thermal
Photovoltaic
Fig p. 391

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

9. Producing Electricity from Wind

10. Producing Energy from Biomass
Biomass and biofuels
Crop residues
Animal manure *
Biogas
Ethanol
Methanol

11. Bio-fuels
Bio-fuels Overview
Ethanol
pros
cons
Methanol

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

13. The Hydrogen Revolution
Environmentally friendly hydrogen
Extracting hydrogen efficiently
Storing hydrogen
Fuel cells
Fig p. 403

14. Entering the Age of Decentralized Micropower
Decentralized power systems
Micropower systems
Fig p. 405

15. Solutions: A Sustainable Energy Strategy
Fig p. 407