| 1990 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Total Space Heating GHG Emissions Excluding Electricity (Mt of CO2e) | 3.4 | 3.4 | 3.4 | 3.3 | 3.0 | 2.8 | 2.7 | 3.1 | 3.1 | |
GHG Emissions by System Type (Mt of CO2e) | ||||||||||
| Heating Oil – Normal Efficiency | 0.6 | 0.2 | 0.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heating Oil – Medium Efficiency | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | |
| Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Natural Gas – Normal Efficiency | 2.0 | 1.5 | 1.4 | 1.2 | 1.2 | 0.9 | 0.8 | 0.8 | 0.7 | |
| Natural Gas – Medium Efficiency | 0.1 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 1.1 | 1.2 | |
| Natural Gas – High Efficiency | 0.1 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | |
| Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heat Pump | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Other2 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
| Wood | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Dual Systems | ||||||||||
| Wood/Electric | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
| Wood/Heating Oil | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | |
| Natural Gas/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heating Oil/Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Shares (%) | ||||||||||
| Heating Oil – Normal Efficiency | 16.2 | 4.8 | 4.6 | 3.8 | 0.5 | 0.3 | 0.3 | 0.4 | 0.3 | |
| Heating Oil – Medium Efficiency | 0.0 | 1.8 | 2.7 | 3.9 | 1.0 | 1.0 | 1.8 | 3.5 | 4.1 | |
| Heating Oil – High Efficiency | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Natural Gas – Normal Efficiency | 60.0 | 44.6 | 41.1 | 37.3 | 38.0 | 34.0 | 28.8 | 24.7 | 21.5 | |
| Natural Gas – Medium Efficiency | 1.8 | 22.6 | 24.2 | 25.0 | 30.5 | 32.6 | 33.6 | 35.0 | 37.9 | |
| Natural Gas – High Efficiency | 3.2 | 10.7 | 11.5 | 12.1 | 14.9 | 16.2 | 17.1 | 18.1 | 19.9 | |
| Electric | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Heat Pump | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Other2 | 3.1 | 1.4 | 1.7 | 1.8 | 2.4 | 2.3 | 2.0 | 3.4 | 2.1 | |
| Wood | 1.6 | 1.0 | 1.0 | 1.2 | 1.1 | 1.3 | 1.6 | 1.3 | 1.2 | |
Dual Systems | ||||||||||
| Wood/Electric | 9.9 | 8.5 | 8.1 | 9.1 | 8.6 | 9.5 | 11.2 | 9.1 | 8.2 | |
| Wood/Heating Oil | 3.2 | 2.9 | 3.4 | 3.9 | 1.3 | 1.4 | 1.9 | 2.7 | 2.8 | |
| Natural Gas/Electric | 0.8 | 1.1 | 1.2 | 1.2 | 1.4 | 1.4 | 1.4 | 1.4 | 1.5 | |
| Heating Oil/Electric | 0.3 | 0.6 | 0.7 | 0.8 | 0.2 | 0.2 | 0.3 | 0.5 | 0.6 | |
| GHG Intensity (tonne/TJ) | 40.2 | 37.3 | 37.0 | 36.6 | 35.3 | 34.7 | 33.7 | 35.1 | 35.1 | |
| Heat Gains (PJ) | 7.7 | 8.7 | 9.1 | 8.9 | 9.3 | 8.5 | 8.8 | 9.2 | 9.3 | |
| Heating Degree-Day Index | 0.97 | 0.94 | 0.97 | 0.95 | 0.95 | 0.87 | 0.84 | 0.89 | 0.90 | |
Footnotes:
1) Data on GHG emissions are presented excluding GHG emissions related to electricity production only.2) “Other” includes coal and propane.