Energy Usage Guide - A Guide To Calculate Energy Use
Here is a handy table to help you estimate your monthly kilowatt-hour (kWh) usage.
| Appliance |
Average
Wattage |
Monthly
kWh |
| Air conditioner (room) |
1,000*
|
1 kWh/hour
|
| Air conditioner (central) |
2,500-3,500*
|
2.5-3.5 kWh/hour
|
| Automatic Blanket |
200
|
15
|
| Car Engine Heater |
1,000
|
1 kWh/hour
|
| Clock |
4
|
3
|
| Clothes Dryer |
4,350
|
5 kWh/load
|
| Coffee Maker |
850
|
8
|
| Dehumidifier (8.5 kWh per day if run continually) |
300
|
200
|
| Dishwasher |
1,190
|
30-48
|
| Freezer, standard (12-15 cu.ft.) |
350
|
100-190
|
| Freezer, frost-free (12-15 cu. ft.) |
440
|
150-240
|
| Food Mixer or Blender |
110
|
1
|
| Frying Pan |
1,200
|
15
|
| Furnace, Oil |
600
|
75
|
| Garbage Disposal |
400
|
2
|
| Heater, Portable |
1,500
|
1.5 kWh/hour
|
| Hair Dryer |
1,250
|
3
|
| Humidifier |
80
|
20
|
| Iron (hand) |
1,100
|
12
|
| Lighting (varies widely) |
1,600-4,000
|
75-150
|
| Microwave |
1,450
|
16
|
| Radio |
20
|
4
|
| Radio-Stereo |
40
|
6
|
| Range |
12,000
|
100-150
|
| Refrigerator, standard (12'-16') |
265
|
100-120
|
| Refrigerator,frost-free (16) |
475
|
150-230
|
| Refrigerator,frost-free (20') |
540
|
225-275
|
| Sewing Machine |
75
|
1
|
| Television (b & w,4 hours per day) |
50-100
|
6-12
|
| Television (color,4 hours per day) |
250
|
30-40
|
| Toaster |
1,100
|
4
|
| Vacuum Cleaner |
700
|
3
|
| Washing Machine (automatic) |
600
|
8
|
| Water Heater (standard) |
2,500
|
400**
|
| Water Heater (quick recovery) |
4,500
|
500**
|
| Waterbed Heater* |
300
|
100
|
| Water Pump |
750-1,000
|
40**
|
|
* varies The average monthly kilowatt-hour consumption figures shown on this chart are based on normal use. Your electrical consumption may be higher or lower, depending on how you and other people in your home use the various appliances. |
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