Energy Efficieny

Question 1

Nuclear

Answer 1

• produces NO greenhouse gases
• uranium mining damages the enviornment
• radioactive nuclear waste products must be stored safely because they remain hazardous for 1000’s of years

Question 2

Fossil Fuels

Answer 2

• low costs
• Large availble supply of coal and natural gas
• the ability of power plants to respond quickly to increased demand of electrical energy during peak hours.
• only 30% efficient
• environment costs (damages the enviornment)
• CO2 emmisions

Question 3

Hydroelectric

Answer 3

• renewable
• no fuel costs
• no combustion emmisions
• low operating costs
• high efficiency (90%)
• environmental damages from building dams
• flooding of land/disruption of habitat
• heavy equipment used to build the dam use large amounts of fossil fuels