1. Ch. 18 – Renewable Energy (7% of U.S. energy consumption)

2. Renewable vs. Nonrenewable vs. Alternative
Energy Conservation – decrease use, tax breaks; variable cost of kWhr
Energy Efficiency – Energy Star appliances approved by EPA; light bulbs
Sustainable Design – passive solar heating
N. Hemisphere- South facing walls
Dark roofs
Shade trees
High Effic. Windows
Stone/concrete walls
insulation

3. Wind Denmark- Country pop. 5.5 M; 21% of energy from wind
Spain, Germany, Portugal

4. Hydropower Tidal Energy Hydroelectric Dams – World’s largest is China
Roosevelt Island Tidal Energy project (New York)
Florida- potential tidal energy?

5. Geothermal
Largest geothermal producers- U.S., China and Iceland

6. Biomass (potentially renewable)
Wood
Biofuels – Biodiesel made from algae, filtered fryer oil from restaurants, farming waste
Diesel engines can run on three basic types of fuel: petroleum diesel, biodiesel, and straight vegetable oil (SVO). Any diesel engine can run on biodiesel. Biodiesel is a clean-burning fuel made from domestic, renewable plant sources, such as oils from vegetables, peanuts, soy beans, canola/grape seeds, hemp seeds and some grains.

7. Ethanol/ Methanol- Corn and sugarcane
E-85 Flex Fuel Vehicles

8. Hydrogen
Hydrogen fuel cell for cars
Storage of H2 gas

9. Solar Passive vs. Active Solar energy Solar Water heating systems
Solar photovoltaic cells

10. Passive Solar Design

11. Solar Voltaic cells