Residential Sector
Ontario1
Table 39: Apartments Secondary Energy Use and GHG Emissions by End-Use
  2000   2018 2019 2020 2021
Total Apartments Energy Use (PJ) 82.8   90.5 85.9 82.0 80.4

Energy Use by End-Use (PJ)
Space Heating 45.3   50.2 48.0 42.5 40.4
Water Heating 21.0   22.2 20.4 20.6 20.7
Appliances 14.1   14.6 14.9 15.5 16.0
Lighting 2.0   1.2 1.2 1.2 1.2
Space Cooling 0.4   2.2 1.5 2.2 2.1

Shares (%)
Space Heating 54.7   55.5 55.8 51.8 50.2
Water Heating 25.4   24.6 23.7 25.1 25.8
Appliances 17.1   16.1 17.4 18.9 19.9
Lighting 2.4   1.4 1.4 1.5 1.5
Space Cooling 0.5   2.5 1.7 2.7 2.6

Activity
Total Floor Space (million m2) 109.4   156.1 159.1 162.9 167.5
Total Households (thousands) 1,258.1   1,540.8 1,562.7 1,586.4 1,610.1
Energy Intensity (GJ/m2) 0.76   0.58 0.54 0.50 0.48
Energy Intensity (GJ/household) 65.8   58.7 55.0 51.7 49.9
Total Apartments GHG Emissions Excluding Electricity (Mt of CO2e) 2.9   3.1 2.9 2.7 2.6

GHG Emissions by End-Use (Mt of CO2e)
Space Heating 2.0   2.1 2.0 1.7 1.6
Water Heating 0.9   1.0 0.9 0.9 0.9
Appliances 0.0   0.1 0.1 0.1 0.1
Lighting 0.0   0.0 0.0 0.0 0.0
Space Cooling 0.0   0.0 0.0 0.0 0.0

Shares (%)
Space Heating 68.0   66.6 67.3 64.3 62.9
Water Heating 30.9   31.5 30.9 33.7 35.0
Appliances 1.1   1.9 1.8 2.0 2.1
Lighting 0.0   0.0 0.0 0.0 0.0
Space Cooling 0.0   0.0 0.0 0.0 0.0
GHG Intensity (tonne/TJ) 35.2   34.8 33.9 32.8 32.3
Heating Degree-Day Index 0.94   0.92 0.96 0.84 0.79
Cooling Degree-Day Index 1.00   1.98 1.29 1.89 1.77

Footnotes:

1) Data on GHG emissions are presented excluding GHG emissions related to electricity production only.