Energy Sources - Ms. Preissler

1
Energy Sources

• So what did we learn?

2
Coal

• Non-Renewable
• Coal found mainly in US, China, Russia.
• Terrible effects on environment people.
• Black lung for miners.
• Increase use of electricity will likely increase
  our dependence on coal

3
Petroleum (Oil)

• Non-Renewable
• Unequal Distribution
• Middle East 60 of Oil reserves
• 1.3 Trillion barrels of oil.
• Used at a rate of 26 billion per year, 50 years
  left with oil.
• Potential Reserve could increase that amount

4
MDCs vs. LDCs

• MDC Most Developed Country
• consume more energy than they produce.
• compete for fuel produced by LDCs.
• LDC Least Developed Country
• have few oil or coal reserves
• in order to develop must consume more energy.
• Expected to increase by 50

5
Brain Break
6
Natural Gas

• Non-Renewable
• Reserves in US, Iran, and Russia.
• Most common energy source for heating homes

7
Geothermal

• Renewable
• Thermal energy generated and stored in the earth
• Little to no pollution

8
Nuclear

• A way of creating heat through the fission
  process of atoms.
• Renewable
• 1/6 of US electricity is from Nuclear Plants.
• Europe and Japan also use large amounts.
• Why is the U.S. less dependent on nuclear energy?
• Accidents, safety procedures, public opinion have
  slowed the expansion of nuclear power.
• Radioactive Waste

9
Solar

• Renewable
• Solar energy could generate 2.5 percent of the
  world's electricity by 2025.
• High installation cost makes solar energy more
  expensive, but once installed low costs

10
Wind

• Renewable
• conversion of wind energy into a useful form of
  energy
• The biggest wind turbines generate enough
  electricity to supply about 600 U.S. homes
• What are the negatives?

11
Hydroelectricity (Water)

• Renewable
• Uses the Earth's water cycle to generate
  electricity
• Mostly dependent upon precipitation and elevation
  changes
• Construction and operation of hydropower dams can
  significantly affect natural river systems as
  well as fish and wildlife populations