Residential Sector
Alberta
Table 8: Space Heating Secondary Energy Use by System Type
  1990   2012 2013 2014 2015
Total Space Heating Energy Use (PJ) 106.5   137.6 150.3 162.9 148.1

Energy Use by System Type (PJ)
Heating Oil – Normal Efficiency 0.7   0.0 0.0 0.0 0.0
Heating Oil – Medium Efficiency 0.0   0.0 0.0 0.0 0.0
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 86.6   11.6 8.0 4.7 2.2
Natural Gas – Medium Efficiency 6.8   73.4 75.1 78.2 65.6
Natural Gas – High Efficiency 0.0   20.6 32.0 44.2 47.9
Electric 0.6   21.6 24.9 27.5 23.6
Heat Pump 0.2   0.5 0.6 0.6 0.5
Other1 3.8   1.8 1.7 1.6 1.4
Wood 4.2   1.3 1.8 1.7 2.3

Dual Systems
Wood/Electric 1.9   3.7 3.3 2.2 2.4
Wood/Heating Oil 1.6   2.5 2.2 1.5 1.6
Natural Gas/Electric 0.1   0.6 0.6 0.7 0.6
Heating Oil/Electric 0.0   0.0 0.0 0.0 0.0

Shares (%)
Heating Oil – Normal Efficiency 0.7   0.0 0.0 0.0 0.0
Heating Oil – Medium Efficiency 0.0   0.0 0.0 0.0 0.0
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0 0.0
Natural Gas – Normal Efficiency 81.3   8.4 5.3 2.9 1.5
Natural Gas – Medium Efficiency 6.4   53.3 50.0 48.0 44.3
Natural Gas – High Efficiency 0.0   15.0 21.3 27.1 32.4
Electric 0.5   15.7 16.6 16.9 15.9
Heat Pump 0.2   0.4 0.4 0.3 0.3
Other1 3.5   1.3 1.1 1.0 1.0
Wood 3.9   0.9 1.2 1.1 1.6

Dual Systems
Wood/Electric 1.8   2.7 2.2 1.4 1.6
Wood/Heating Oil 1.5   1.8 1.5 0.9 1.0
Natural Gas/Electric 0.1   0.5 0.4 0.4 0.4
Heating Oil/Electric 0.0   0.0 0.0 0.0 0.0

Activity
Total Floor Space (million m2) 111.2   198.6 209.2 215.7 220.4
Energy Intensity (GJ/m2) 0.96   0.69 0.72 0.76 0.67
Heat Gains (PJ) 9.5   9.8 9.2 8.9 7.0
Heating Degree-Day Index 0.93   0.92 0.97 1.01 0.89

Footnotes:

1) “Other” includes coal and propane.