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How Much Power Do Your Appliances Use? |
These figures are approximate representations, and the actual power consumption of your appliances may vary substantially from these figures. Check the power tags, or better yet, measure the amperage draw with a clamp-on ammeter or Kill-A-Watt meter. You can usually find these at your local hardware store. Multiply the hours used on the average day by the wattage listed below. This will give you the watt-hours consumed per day.
Remember that some items, such as garage door openers, are used only for a fraction of an hour or minute per day. A 300-watt item used for 5 minutes per day will only consume 25-watt hours per day.
Where a range of numbers is given, the lower figure often denotes a technologically newer and more efficient model. The letters “NA” denotes appliances, which would normally be powered by non-electric sources in a PV powered home.
If you are considering making your own power, we strongly suggest that you invest in a true RMS digital multimeter, a clamp-on type ammeter or a Kill-A-Watt meter. It actually makes sense to know where your power is being used even if you are not producing it, and if you are, these meters are essential diagnostic tools.
|
|
Watts |
Appliance |
Watts |
Appliance |
Watts |
Central Air Conditioner NA |
5,000 |
Electric blanket |
200 |
Hedge trimmer |
450 |
Electric Clothes Dryer NA |
3,400 |
Shaver |
15 |
Weed eater |
500 |
Oven |
3,000 |
Waterpik |
100 |
1/4” drill |
250
|
Hair Dryer |
1,538 |
Well Pump (1/3-1 HP) |
480-1200 |
1/2” drill |
750
|
Dishwasher |
1200-1500 |
Laptop |
60-250 |
1” drill |
1000 |
Coffee Machine |
1,500 |
Plasma TV |
339 |
9” disc sander |
1200 |
Microwave |
1,500 |
LCD TV
|
213 |
3” belt sander |
1000 |
Popcorn Popper |
1,400 |
25” color TV |
150 |
12” chain saw |
1100 |
Toaster oven |
1,200 |
19” color TV |
70 |
14” band saw |
1100 |
Hot Plate |
1200 |
12” black and white TV |
20 |
7-1/4” circular saw |
900 |
| Iron |
1,100 |
Stereo |
10-30 |
8-1/4” circular saw |
1400 |
Toaster |
1,100 |
Satellite dish |
30 |
Refrigerator/ Freezer** |
|
Microwave |
500-1500
|
Radiotelephone - Receive |
5 |
20 cu. ft. (AC) |
1411 watt-hours/day*
|
| Room Air Conditioner NA |
1,100 |
Radiotelephone - Transmit |
40-150 |
16 cu. ft. (AC) |
1200 watt-hours /day* |
Vacuum Cleaner |
500 |
LIghts |
|
Freezer |
|
| Water heater |
479 |
100 watt incandescent bulb |
100 |
15 cu. ft. (Upright) |
1240 watt-hours /day* |
| Sink Waste Disposal |
450 |
25 watt compact fluor. bulb |
28 |
15 cu. ft. (Chest) |
1080 watt-hours /day* |
|
|
50 watt DC incandescent |
50 |
Cell Phone - recharge |
2-4 watts |
|
350 |
40 watt DC halogen |
40 | MP3 Player - recharge |
.25-.40 watts |
Blender |
|
20 watt DC compact fluor. |
22 | * TV’s,VCR’s and other devices left plugged in, but not turned on, still draw power.
**To estimate the number of hours that a refrigerator actually operates at its maximum wattage, divide the total time the refrigerator is plugged in by three. Refrigerators, although turned "on" all the time, actually cycle on and off as needed to maintain interior temperatures.
|
Humidifier |
300-1000 |
CFL Bulb (60-watt equivalent) |
18 |
Video Game Player |
195 |
CFL Bulb (40-watt equivalent)
|
11 |
Standard TV |
188 |
CFL Bulb (75-watt equivalent) |
20 |
Monitor |
150 |
CFL Bulb (100-watt equivalent) |
30 |
Computer |
120 |
Heaters*** |
|
Portable Fan |
100 |
|
|
Ceiling Fan |
100 |
|
|
Can Opener |
100 |
Waterbed Heater NA |
400 |
Curling Iron |
90 |
Stock Tank Heater NA |
100 |
Stereo |
60 |
Furnace Blower |
300-1000 |
Cable Box |
20 |
Clothes Dryer - Gas Heated |
300-400 |
| Clock Radio |
7 |
Well Pump (1/3-1HP) |
480-1200 |
* The daily energy values listed here are for the most efficient units in their class and the information was obtained from Consumer Guide to Home and the General Electric website.
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