Residential Sector
Alberta1
Table 8: Space Heating Secondary Energy Use by System Type
  1990   2015 2016 2017
Total Space Heating Energy Use (PJ) 106.5   129.3 112.1 134.4

Energy Use by System Type (PJ)
Heating Oil – Normal Efficiency 0.7   0.0 0.0 0.0
Heating Oil – Medium Efficiency 0.0   0.0 0.0 0.0
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0
Natural Gas – Normal Efficiency 86.7   0.3 0.1 0.1
Natural Gas – Medium Efficiency 6.8   68.1 55.4 63.5
Natural Gas – High Efficiency 0.0   48.6 44.7 58.8
Electric 0.6   3.0 3.0 3.1
Heat Pump 0.2   1.1 1.1 1.1
Other1 3.8   1.4 1.2 1.4
Wood 4.2   1.0 1.0 1.0

Dual Systems
Wood/Electric 1.9   3.2 3.1 3.0
Wood/Heating Oil 1.6   2.1 2.0 2.0
Natural Gas/Electric 0.1   0.5 0.4 0.5
Heating Oil/Electric 0.0   0.0 0.0 0.0

Shares (%)
Heating Oil – Normal Efficiency 0.7   0.0 0.0 0.0
Heating Oil – Medium Efficiency 0.0   0.0 0.0 0.0
Heating Oil – High Efficiency 0.0   0.0 0.0 0.0
Natural Gas – Normal Efficiency 81.3   0.2 0.1 0.0
Natural Gas – Medium Efficiency 6.4   52.7 49.5 47.2
Natural Gas – High Efficiency 0.0   37.6 39.9 43.7
Electric 0.5   2.3 2.6 2.3
Heat Pump 0.2   0.8 1.0 0.8
Other1 3.5   1.1 1.1 1.1
Wood 3.9   0.8 0.9 0.7

Dual Systems
Wood/Electric 1.8   2.5 2.8 2.2
Wood/Heating Oil 1.5   1.6 1.8 1.5
Natural Gas/Electric 0.1   0.4 0.4 0.4
Heating Oil/Electric 0.0   0.0 0.0 0.0

Activity
Natural Gas – Normal Efficiency 111.2   214.9 220.1 228.5
Energy Intensity (GJ/m2) 0.96   0.60 0.51 0.59
Heat Gains (PJ) 9.5   14.0 13.5 14.2
Heating Degree-Day Index 0.93   0.89 0.88 0.89

Footnotes:

1) “Other” includes coal and propane.