2000 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | ||
---|---|---|---|---|---|---|---|---|
Total Lighting Energy Use1 (PJ)a | 55.1 | 55.9 | 56.8 | 57.9 | 57.7 | 57.1 | 57.2 | |
Activity | ||||||||
Total Households (thousands)a | 11,652 | 12,985 | 13,164 | 13,417 | 13,378 | 13,551 | 13,706 | |
Energy Intensity (GJ/Household)a | 4.7 | 4.3 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | |
Heat Loss (PJ)a | 24.1 | 24.0 | 24.8 | 25.6 | 22.9 | 23.7 | 22.2 | |
Total Space Cooling Energy Use1 (PJ)a | 13.1 | 25.9 | 19.3 | 16.2 | 31.0 | 30.9 | 34.6 | |
Energy Use by Cooling System Type (PJ)a | ||||||||
Room | 2.2 | 4.5 | 3.3 | 3.0 | 4.9 | 4.4 | 5.0 | |
Central | 10.9 | 21.4 | 16.0 | 13.3 | 26.0 | 26.5 | 29.5 | |
Activity | ||||||||
Cooled Floor Space (million m2)a | 500 | 721 | 764 | 774 | 807 | 853 | 876 | |
Energy Intensity (MJ/m2)a | 26.2 | 36.0 | 25.3 | 21.0 | 38.4 | 36.3 | 39.5 | |
Cooling Degree-Day Indexa,b | 0.91 | 1.44 | 1.08 | 0.93 | 1.58 | 1.51 | 1.70 | |
Total Cooling System Stock (thousands)a | 4,030 | 6,282 | 6,554 | 6,600 | 6,804 | 6,964 | 7,089 | |
System Stock by Type (thousands)a | ||||||||
Room | 1,425 | 2,446 | 2,398 | 2,376 | 2,431 | 2,396 | 2,412 | |
Central | 2,605 | 3,836 | 4,156 | 4,223 | 4,374 | 4,568 | 4,677 | |
New Unit Efficiencya | ||||||||
Room (EER) | 9.4 | 10.9 | 10.9 | 10.9 | 12.0 | 12.0 | 12.0 | |
Central (SEER) | 10.3 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | |
Stock Efficiencya | ||||||||
Room (EER) | 8.3 | 9.8 | 10.0 | 10.1 | 10.4 | 10.6 | 10.8 | |
Central (SEER) | 9.6 | 10.5 | 10.7 | 10.9 | 11.1 | 11.2 | 11.4 |
Footnotes:
1) Lighting and space cooling consume only electricity.
Sources: