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Energy Consumption of Major Household Appliances Shipped in Canada – Trends for 1990-2003

6  Electric Clothes Dryers

6.1   2003 Market Snapshot

In 2003, the shipment-weighted average annual unit energy consumption of all electric clothes dryers was 914 kilowatt hours (kWh) per year.

FIGURE 6.1
Energy Consumption of Electric Clothes Dryer Models Available in 2003

Energy Consumption of Electric Clothes Dryer Models Available in 2003.

6.2  Distribution of Shipments

6.2.1  Distribution by Average Annual Unit Energy Consumption

Between 1990 and 2003, electric clothes dryers exhibited significant improvements in energy efficiency. The consumption level of over 1050 kWh per year, which dominated the market (66.5 percent) in 1990, had almost disappeared by 2003. That year, 77.0 percent of electric clothes dryers consumed between 900 and 949 kWh. The improvement was remarkable. By the end of the study period, 89.7 percent of electric dryers on the market required less than 950 kWh per year, an impressive jump from 26.9 percent in 1990.

TABLE 6.1
Distribution of Electric Clothes Dryers by Average Annual Unit Energy Consumption
Model
Year
kWh/yr.
<800 800-899.9 900-949.9 950-1049.9 >1050
  (%) (%) (%) (%) (%)
1990 4.7 7.8 14.4 6.6 66.5
1991 5.3 0.2 30.0 38.0 26.5
1992 4.4 28.9 37.5 18.2 11.0
1993 4.1 28.9 53.6 7.2 6.1
1994 4.3 24.0 56.6 14.9 2.2
1995 3.2 16.2 68.5 10.8 1.3
1996 4.2 11.8 82.8 1.2 0.0
1997 4.9 12.9 80.7 1.4 0.0
1998 3.2 8.8 87.0 1.0 0.0
1999 2.7 7.2 88.3 1.8 0.0
2000 2.7 7.7 84.6 5.0 0.0
2001 2.3 4.3 87.1 6.3 0.0
2002 2.5 5.2 85.5 6.7 0.0
2003 2.7 10.0 77.0 10.3 0.0
Average
Annual
Change
-0.1% +0.2% +4.8% +0.3% -5.1%

FIGURE 6.2
Distribution of Electric Clothes Dryers by Average Annual Unit Energy Consumption for 1990

Distribution of Electric Clothes Dryers by Average Annual Unit Energy Consumption for 1990.

FIGURE 6.2
Distribution of Electric Clothes Dryers by Average Annual Unit Energy Consumption for 2003

Distribution of Electric Clothes Dryers by Average Annual Unit Energy Consumption for 2003.

6.3  Energy Consumption

6.3.1  Average Annual Unit Energy Consumption by Model Year

The improvement in energy efficiency for electric clothes dryers between 1990 and 2003 is illustrated in Figure 6.3. It shows a decrease in the average annual unit energy consumption of 188 kWh, or about 17.1 percent. This figure and Table C.13 show a significant improvement from 1991 to 1993, when the average annual unit energy consumption decreased from 1109 to 929 kWh, or by 16 percent. After 1993, the decrease in the average annual unit energy consumption tapered off. Average annual unit energy consumption began to increase slightly after 1997, and by 2003 it had tapered off again.

FIGURE 6.3
Average Annual Unit Energy Consumption of Electric Clothes Dryers by Model Year*

Average Annual Unit Energy Consumption of Electric Clothes Dryers by Model Year.

* For greater detail, see Table C.13.

6.4  Energy Savings

It is estimated that from 1993 to 2003, the annual energy consumption of electric clothes dryers was less than it would have been had manufacturers not met the minimum energy performance standards (MEPS) or improved energy efficiency.

Figure 6.4 shows how much energy might have been consumed annually by electric clothes dryers without the MEPS or improved technology (top line) and how much energy they actually consumed (bottom line).

Graphically, the gap between the two lines represents incremental annual energy savings – on average 0.11 petajoules (PJ) per year. The largest annual energy savings occurred in 2003, when electric clothes dryers consumed 0.142 PJ less than they otherwise might have.

FIGURE 6.4
Annual Energy Savings for Electric Clothes Dryers, 1992-2003*

Annual Energy Savings for Electric Clothes Dryers, 1992-2003.

* For greater detail, see Table C.14.

The cumulative energy savings for electric clothes dryers are shown in Figure 6.5. Savings grew steadily between 1992 and 2003, as annual energy savings began to accrue. They reached a total of 1.27 PJ in 2003.

FIGURE 6.5
Cumulative Energy Savings for Electric Clothes Dryers, 1992-2003*

Cumulative Energy Savings for Electric Clothes Dryers, 1992-2003.

* For greater detail, see Table C.14.

To summarize, the energy efficiency of clothes dryers improved steadily between 1990 and 2003. By 2003, 89.7 percent of all clothes dryers consumed less than 949 kWh per year; whereas in 1990, well over half (66.5 percent) consumed more than 1050 kWh per year. The average annual energy savings for clothes dryers were estimated to be 0.11 PJ between 1993 and 2003, with total energy savings for that period reaching 1.27 PJ.