Commercial/Institutional Sector
Ontario1
Table 2: Secondary Energy Use and GHG Emissions by End Use
  1990   2015 2016 2017
Total Energy Use (PJ) 255.9   420.8 403.4 414.9

Energy Use by End Use (PJ)
Space Heating 163.1   245.2 231.5 240.5
Water Heating 15.2   25.1 24.2 23.6
Auxiliary Equipment 14.6   50.7 49.1 55.0
Auxiliary Motors 16.9   14.9 12.8 13.8
Lighting 29.3   54.7 49.2 54.8
Space Cooling 14.1   28.5 34.5 25.1
Street Lighting 2.8   1.8 2.1 2.1

Shares (%)
Space Heating 63.7   58.3 57.4 58.0
Water Heating 5.9   6.0 6.0 5.7
Auxiliary Equipment 5.7   12.0 12.2 13.3
Auxiliary Motors 6.6   3.5 3.2 3.3
Lighting 11.4   13.0 12.2 13.2
Space Cooling 5.5   6.8 8.5 6.0
Street Lighting 1.1   0.4 0.5 0.5

Activity
Total Floor Space (million m2) 192.3   287.4 288.8 290.0
Energy Intensity2 (GJ/m2) 1.32   1.46 1.39 1.42
Total GHG Emissions Excluding Electricity (Mt of CO2e) 9.1   12.3 11.8 12.2

GHG Emissions by End Use (Mt of CO2e)
Space Heating 8.2   10.6 10.2 10.6
Water Heating 0.8   1.2 1.2 1.1
Auxiliary Equipment 0.1   0.4 0.3 0.4
Auxiliary Motors 0.0   0.0 0.0 0.0
Lighting 0.0   0.0 0.0 0.0
Space Cooling 0.0   0.1 0.1 0.1
Street Lighting 0.0   0.0 0.0 0.0
GHG Intensity (tonne/TJ) 35.7   29.2 29.2 29.4
Heating Degree-Day Index 0.89   0.92 0.88 0.92
Cooling Degree-Day Index 1.05   1.36 2.09 1.36

Footnotes:

1) Data on GHG emissions are presented excluding GHG emissions related to electricity production.
2) Excludes street lighting.