Chapter 13, Problem 6CR

To determine

The two key concepts for the given section. The concept of energy efficiency, energy conservation, cogeneration, an energy-efficient smart electrical grid, and a hydrogen fuel cell. The percentage of the energy utilized in the United States that is unnecessarily wasted. The two energy-inefficient technologies that are widely used. The major benefits of improving energy efficiency. An example of cogeneration. The three other ways that are used to save energy and money in industry. The use an energy-efficient smart electrical grid to save energy and money. The three ways used to save energy and money in transportation. The true cost of gasoline is higher than that paid by the consumers at the pump. The differences between hybrid, plug-in hybrid, all electric, and fuelcell motor vehicles. The four ways that can be used to save energy and money (a) in new buildings and (b) in existing buildings. The three ways in which energy and money can be saved. The three reasons for huge investment of energy and money in production and utilization of energy.