Environmental Science 15th Edition by Scott Spoolman,Tyler Miller

Exercise 11

What is the key concept for this section? What is energy efficiency ? What percentage of the energy used in the United States is unnecessarily wasted? Briefly describe two widely used energy-inefficient technologies. What are the major benefits of improving energy efficiency? Define and give an example of cogeneration. List three other ways to save energy and money in industry. How could an energyefficient smart electrical grid help us to save energy and money? List three ways to save energy and money in transportation. Explain why the true cost of gasoline is much higher than what consumers pay at the pump. Distinguish among hybrid, plug-in hybrid, all-electric, and fuel-cell motor vehicles. Summarize the story of the search for better batteries. List four ways to save energy and money (a) in new buildings, and (b) in existing buildings. List three ways in which you can save energy and money. Give three reasons why we are still wasting so much energy and money.