Production Of Energy

Question 1

5 Advantages of fossil fuels and nuclear power?

Answer 1

• Can be built anywhere with a good access to fuel source
• Nuclear produces no SO2 or CO2 so no acid rain or global warming
• Nuclear uses small amount of fuel for large output
• Cheaper
• Uninterrupted supply (reliable)

Question 2

5 disadvantages to nuclear and fossil fuels?

Answer 2

• Expensive to build
• Sulfer and Nitrogen from FF contribute to acid rain
• Coal mining, and gas/oil extraction have a large environmental effect
• Nuclear Requires expensive and robust safety systems
• Radioactive waste is costly to store

Question 3

3 advantages to micro-generation?

Answer 3

• No CO2 , SO2 from solar or wind
• Can sell back to national grid (feed-in)
• Zero fuel costs

Question 4

3 Disadvantages of micro-generation?

Answer 4

• Erratic energy supply
• Can or generate large amounts of energy
• Not reliable
• Visual pollution

Question 5

Why do we need a national grid?

Answer 5

Reliable energy source

Matches changing energy supply

Connect to consumers

Question 6

What is micro-generation?

Answer 6

Generating electricity locally on a small scale, close to where it is needed. E.g solar or domestic wind turbines

Question 7

Voltage at consumer and at the power station?

Answer 7

Homes - 230V

Power S - 25 000V

Question 8

Insulation costs?

Answer 8

Double glazing (£2000)
Cavity wall insulation (£250)

Loft insulation (£250)
Floor insulation (£140)
Draught proofing (£50)

Question 9

Payback time?

Answer 9

Annual savings