The first pie chart illustrates how energy is distributed to six different categories. The second pie chart compares the corresponding emission of greenhouse gases in an average Australian household.
Overall, it is noticeable that while heating and water heating consumed the most energy, far surpassing other categories, the latter produced the largest percentage of CO2.
In terms of energy use, heating, and water heating take up the lead, comprising 42%, and 30% of total energy usage respectively. Meanwhile, other appliances rank third in energy use, at 15%. In contrast, other activities such as refrigeration, lighting, and cooling are reported to consume considerably lower energy, ranging from 2% to 7%.
Regarding emissions, water heating accounted for 32% of greenhouse gas emissions, which is the largest portion. Following closely, other appliances and heating are responsible for 28% and 15% of CO2 emissions. Refrigeration and lighting generate a high amount of emissions, despite their lower energy consumption, at 14% and 8% respectively. Cooling is reported to release the lowest emissions, accounting for 3%.