Help please?
Compact Fluorescent Lights (CFLs) have been given away in Australia in a number of cities in recent years.
A newspaper article suggests that if every house in Australia replaced FOUR incandescent light bulbs (75 W each) with FOUR CFL bulbs (15 W each) that this would be equivalent to TWO 1200 MW power stations not having to be operated whilst the CFLs are on.
Question: What is the reduction of CO2 emissions each year due to this measure? Express your answer as a fraction of Australia’s total CO2 emissions (565 million tonnes per annum).
For simplicity assume that 1 kg of CO2 is emitted per 1 kWh of electricity consumed.
Compact Fluorescent Lights (CFLs) have been given away in Australia in a number of cities in recent years.
A newspaper article suggests that if every house in Australia replaced FOUR incandescent light bulbs (75 W each) with FOUR CFL bulbs (15 W each) that this would be equivalent to TWO 1200 MW power stations not having to be operated whilst the CFLs are on.
Question: What is the reduction of CO2 emissions each year due to this measure? Express your answer as a fraction of Australia’s total CO2 emissions (565 million tonnes per annum).
For simplicity assume that 1 kg of CO2 is emitted per 1 kWh of electricity consumed.
-
2400x10^6Wh x (24 x 365) = yearly amount saved
= 2.1 x10^10kWh
=2.1 x 10^10 kg of co2 saved
2.1x10^10kg to 56.5 x 10^10kg
2.1 / 56.5
= 2.1 x10^10kWh
=2.1 x 10^10 kg of co2 saved
2.1x10^10kg to 56.5 x 10^10kg
2.1 / 56.5