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Office of Energy Efficiency |
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The State of Energy Efficiency in Canada, Office of Energy Efficiency Report 2006
Energy Use and Emissions
Factors That Affect Energy UseSeveral factors affect how much energy the Canadian economy uses. These include the level of economic activity in a sector (e.g. production by industry, floor space in the residential or commercial/institutional sector); the weather; structure (the mix of activities that consume energy in a sector); a higher service level (increased penetration of auxiliary equipment in commercial/institutional buildings); and how efficiently each sector uses energy. Canada's increased energy use between 1990 and 2003 was primarily due to growth in economic activity in each end-use sector. For example, activity in the industrial sector increased by 45 percent during this period. In the residential sector, there was a 26 percent increase in activity (which is represented by a mix of households and floor space). Likewise, the amount of commercial floor space in Canada grew by 25 percent over 1990-2003. In the transportation sector, there was a 27 percent increase in passenger-kilometres travelled and a 46 percent increase in tonne-kilometres moved. Changes in structure - the mix of activities that consume energy - contributed to decreased energy use between 1990 and 2003. The decrease was mainly due to changes in the industrial sector. Secondary Energy Use by Sector, 2003 (petajoules). Secondary Energy-Related Greenhouse Gas Emissions by Sector, 2003 (megatonnes of CO2 equivalent). The industrial sector accounted for approximately 38 percent of total secondary energy use in Canada in 2003 (see Figure 1) and 34 percent of secondary energy-related GHG emissions (see Figure 2).² The second largest energy-using sector - transportation - accounted for almost 28 percent of secondary energy use and about 34 percent of GHG emissions in 2003. The energy used in transportation, primarily gasoline and diesel fuel, produces more GHG emissions than other energy sources when combusted. Of the factors that affect Canada's end-use energy markets, energy efficiency is the primary focus of the Office of Energy Efficiency. The following chapter takes an in-depth look at the state of energy efficiency in Canada. ² There are other sources of GHG emissions (e.g. fugitive emissions and non-energy industrial process emissions). For further information, refer to Environment Canada's Canada's Greenhouse Gas Inventory: 1990-2003. A copy is available at www.ec.gc.ca/pdb/ghg/inventory_e.cfm [This link opens a new window].
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