Commercial/Institutional Sector
Ontario1
Table 24: Space Heating Secondary Energy Use and GHG Emissions by Energy Source
  2000   2017 2018
Total Space Heating Energy Use (PJ) 232.1   236.5 243.1

Energy Use by Energy Source (PJ)
Electricity 5.5   25.5 20.1
Natural Gas 201.3   195.1 211.1
Light Fuel Oil and Kerosene 15.6   2.4 2.7
Heavy Fuel Oil 2.9   0.0 0.1
Steam 0.3   1.4 1.3
Other2 6.4   12.0 7.7

Shares (%)
Electricity 2.4   10.8 8.3
Natural Gas 86.8   82.5 86.9
Light Fuel Oil and Kerosene 6.7   1.0 1.1
Heavy Fuel Oil 1.3   0.0 0.0
Steam 0.1   0.6 0.5
Other2 2.8   5.1 3.2

Activity
Total Floor Space (million m2) 227.21   291.36 293.38
Energy Intensity (GJ/m2) 1.02   0.81 0.83
Total Space Heating GHG Emissions Excluding Electricity (Mt of CO2e) 11.8   10.4 10.9

GHG Emissions by Energy Source (Mt of CO2e)
Electricity  
Natural Gas 10.0   9.5 10.3
Light Fuel Oil and Kerosene 1.1   0.2 0.2
Heavy Fuel Oil 0.2   0.0 0.0
Steam 0.0   0.0 0.0
Other2 0.4   0.7 0.5
GHG Intensity (tonne/TJ) 50.7   44.0 45.0
Heating Degree-Day Index 0.94   0.92 0.92

Footnotes:

1) Data on GHG emissions are presented excluding GHG emissions related to electricity production.
2) “Other” includes coal and propane.