Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

Exercise 22

Review the Key Questions and Concepts for this chapter on p. 207. Distinguish between energy conservation and energy efficiency. Explain why energy efficiency can be thought of as an energy resource. How much of the energy used in the United States is wasted unnecessarily? What are the major advantages of reducing energy waste? What are four commonly used devices that waste large amounts of energy? Describe a smart energy grid and summarize its benefits.