Residential Sector
Alberta1
Table 8: Space Heating Secondary Energy Use by System Type
  2000   2018 2019 2020 2021
Total Space Heating Energy Use (PJ) 129.4   148.6 149.0 143.4 135.6

Energy Use by System Type (PJ)
Heating Oil – Normal Efficiency 0.1   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 67.9   0.0 0.0 0.0 0.0
Natural Gas – Medium Efficiency 50.1   69.3 65.4 58.8 51.5
Natural Gas – High Efficiency 5.0   64.9 69.1 70.2 69.8
Electric 0.8   7.7 8.7 8.8 8.8
Heat Pump 0.5   1.1 1.2 1.2 1.2
Other1 1.5   1.8 1.7 1.6 1.6
Wood 0.9   0.3 0.2 0.2 0.1

Dual Systems
Wood/Electric 1.2   1.8 1.2 1.2 1.1
Wood/Heating Oil 0.9   1.2 0.8 0.8 0.8
Natural Gas/Electric 0.3   0.6 0.6 0.6 0.6
Heating Oil/Electric 0.0   0.0 0.0 0.0 0.0

Shares (%)
Heating Oil – Normal Efficiency 0.1   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 52.5   0.0 0.0 0.0 0.0
Natural Gas – Medium Efficiency 38.7   46.7 43.9 41.0 38.0
Natural Gas – High Efficiency 3.8   43.7 46.4 49.0 51.5
Electric 0.6   5.2 5.8 6.1 6.5
Heat Pump 0.4   0.7 0.8 0.8 0.9
Other1 1.1   1.2 1.2 1.1 1.2
Wood 0.7   0.2 0.1 0.1 0.1

Dual Systems
Wood/Electric 1.0   1.2 0.8 0.8 0.8
Wood/Heating Oil 0.7   0.8 0.6 0.5 0.6
Natural Gas/Electric 0.2   0.4 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) 141.1   235.8 240.3 244.3 248.4
Energy Intensity (GJ/m2) 0.92   0.63 0.62 0.59 0.55
Heat Gains (PJ) 11.9   14.0 15.0 14.8 14.5
Heating Degree-Day Index 0.98   1.00 1.03 0.95 0.93

Footnotes:

1) “Other” includes coal and propane.