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
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
The Importance of Improving Energy Efficiency Energy efficiency Fig p. 381 Net energy efficiency Least Efficient Incandescent lights Internal combustion engine Nuclear power plants
Energy Efficiencies (Fig p. 381)
Ways to Improve Energy Efficiency Cogeneration Efficient electric motors High-efficiency lighting Increasing fuel economy Alternative vehicles Insulation Plug leaks
Hybrid and Fuel Cell Cars Hybrid electric-internal combustion engine Fuel cells Fig p. 385
Using Solar Energy to Provide Heat Passive solar heating Active solar heating Fig p. 391
Using Solar Energy to Provide High- Temperature Heat and Electricity Solar thermal systems Photovoltaic (PV) cells Fig p. 394 Fig p. 395
Producing Electricity from Moving Water Large-scale hydropower Small-scale hydropower Pumped-storage hydropower Tidal power plant Wave power plant
Large-scale Hydroelectric Power: Trade-offs Fig p. 396
Reviewing the Trade-offs of Hydropower Dams Fig p. 313
Producing Electricity from Wind Fig p. 396Fig p. 397
Producing Energy from Biomass Biomass and biofuels Biomass plantations Crop residues Animal manure Biogas Ethanol Methanol Fig p. 398
Geothermal Energy Geothermal heat pumps Geothermal exchange Dry and wet steam Hot water Molten rock (magma) Hot dry-rock zones
The Hydrogen Revolution Extracting hydrogen efficiently Storing hydrogen Fuel cells Environmentally friendly hydrogen
The Hydrogen Revolution Fig p. 403
Entering the Age of Decentralized Micropower Decentralized power systems Micropower systems Fig p. 405
Solutions: A Sustainable Energy Strategy Fig p. 407