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Knowing how
much electricity each of your appliances uses
will also give you a clearer picture of where
your energy dollar is going. Powered with this
knowledge, you can use energy more efficiently
and trim your energy budget.
If you want an
estimate of how much electricity your home
appliances consume, refer to the Household
Appliances list below. If you want a
more exact estimate, you can generally find the
wattage stamped on the bottom or back of the
appliance, or on its "nameplate." The wattage
listed is the maximum power drawn by the
appliance. Since many appliances have a range of
settings (for example, the volume on a radio),
the actual amount of power consumed depends on
the setting used at any one time.
Use the following
formula to estimate the amount of energy a
specific appliance consumes:
Wattage x
Hours Used Per
Day = Daily Kilowatt-hour
(kWh) consumption (1 kilowatt (kW) =
1,000 Watts)
Multiply this by the
number of days you use the appliance during the
year for the annual
consumption. You can then calculate the
annual
cost to run an appliance by multiplying
the kWh per year by the cost per kWh consumed.
Refer to your most recent energy bill for the
latest kilowatt-hour rate.
Examples:
|
Window
Fan |
200 |
x |
4 |
x |
120 |
÷ |
1,000 |
x |
.14 |
= |
$13.44 |
|
|
|
Radio |
400 |
x |
4 |
x |
365 |
÷ |
1,000 |
x |
.14 |
= |
$81.76 |
| |
Household
Appliances:
Aquarium = 50-1210
Watts
Clock radio =
10
Coffee maker =
900-1200
Clothes washer =
350-500
Clothes dryer =
1800-5000
Dishwasher =
1200-2400 (using the drying feature greatly
increases energy consumption)
Dehumidifier =
785
Electric blanket -
Single/Double = 60 /
100
Ceiling
fan =
65-175
Window
fan =
55-250
Furnace =
750
Whole house =
240-750
Hair dryer =
1200-1875
Heater (portable)
= 750-1500
Clothes Iron =
1000-1800
Microwave oven =
750-1100
Personal
Computer:
CPU - awake / asleep = 120
/ 30 or less
Monitor - awake / asleep = 150 /
30 or less
Laptop =
50
Radio (stereo) =
400
Refrigerator
(frost-free, 16 cubic feet) =
725
Television
(color):
19" = 110
27" = 113
36" =
133
53"-61" Projection = 170
Flat Screen =
120
Toaster =
800-1400
Toaster Oven =
1225
VCR/DVD = 17-21
/20-25
Vacuum cleaner =
1000-1440
Water heater (40
gallon) = 4500-5500
Water
pump (deep well) =
250-1100
Water bed (w/
heater, no cover) = 120-380
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Appliance
