GGH1503 SUMMARY NOTES CHAPTER 15

Nonrenewable Energy

Chapter 15

,Core Case Study: How Long Will
Supplies of Conventional Oil Last?

 Oil: energy supplier

 How much is left? When will we run out?

 Three options
• Look for more
• Reduce oil use and waste
• Use other energy sources


 No easy solutions

,15-1 What Major Sources of Energy
Do We Use?
 Concept 15-1A About three-quarters of the
world’s commercial energy comes from
nonrenewable fossil fuels and the rest comes
from nonrenewable nuclear fuel and renewable
sources.

 Concept 15-1B Net energy is the amount of
high-quality usable energy available from a
resource after the amount of energy needed to
make it available is subtracted.

, Fossil Fuels Supply Most of Our
Commercial Energy

 Solar energy
 Indirect solar energy
• Wind
• Hydropower
• Biomass

 Commercial energy
• Nonrenewable energy resources, e.g. fossil fuels
• Renewable energy resources