Payback Time

Which of the following factors makes insulation more cost-effective?

• A low initial cost and high yearly savings

• A high initial cost and low yearly savings

• A long payback time

• High heat loss from the house

Which type of insulation is likely to provide the quickest payback time?

• Solar panels

• Loft insulation

• Double glazing

• Heat pumps

How does insulation benefit the environment?

• It increases the amount of energy used in a home

• It reduces the amount of fossil fuels burned and reduces carbon emissions

• It has no impact on carbon emissions

• It increases air pollution

A homeowner installs solar panels for £4,000. They save £500 per year on electricity bills. What is the payback time?

• 4 years

• 6 years

• 8 years

• 10 years

Loft insulation costs £600 and saves £150 per year on heating bills. What is the payback time?

• 2 years

• 3 years

• 4 years

• 5 years

A company installs double glazing for £5,000, saving £250 per year on heating costs. How long will it take to pay back?

• 10 years

• 15 years

• 20 years

• 25 years

A homeowner installs cavity wall insulation for £800. It saves £200 per year. What is the payback time?

• 2 years

• 3 years

• 4 years

• 5 years

10. A homeowner is told they can save £250 per year on energy bills if they install loft insulation. The payback time is 5 years. How much does the insulation cost?

• £750

• £1,000

• £1,250

• £1,500

A homeowner wants to recover their investment in double glazing in 12 years. The windows cost £4,800. How much money must they save per year to achieve this?

• £200

• £300

• £400

• £500