What are the two concepts for this section? Define and give an example of energy efficiency. Explain why improving energy efficiency and reducing energy waste is a major energy resource. What...

What are the two concepts for this section? Define and give an example of energy efficiency. Explain why improving energy efficiency and reducing energy waste is a major energy resource. What percentage of the energy used in the United States is unnecessarily wasted? Why is so much energy wasted? List three widely used energy-inefficient technologies. What are the major advantages of reducing energy waste? List four ways to save energy and money in industry. What is cogeneration? What is a smart electric grid and why is it important? What are U.S. CAFE standards? What are the hidden costs of using gasoline? List four ways to save energy and money in transportation. Distinguish between hybrid, plug-in hybrid, and all-electric vehicles. Explain the importance of developing better and cheaper batteries and list some advances in this area. What are fuel cells and what are their major advantages and disadvantages? What are some green architecture technologies? What is superinsulation? What are 10 ways to improve energy efficiency in existing buildings? List six ways in which you can save energy where you live. What is the rebound effect and how can it be reduced? Give five reasons why we are not making greater use of renewable energy.