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Energy Efficiency Tips

Ways to save money,
and save energy Home | Business

Tools and Resources

Kilowatt Counters

How much energy are your household appliances
and electronics using?

Take control of your home energy consumption and you'll control your expenses. We've listed many common household appliances and electronics and their estimated average monthly energy consumption. The more you know about energy usage, the easier it is to save money.

Major Appliances

Appliance Wattage/Size Operating
Time
Average kWh
Per Month
Average
Monthly Cost
Range
Small element low 334 1 hr daily 10 $0.90
Small element high 1,325 1 hr daily 40 $3.60
         
Oven
Bake element 3,100 4 hrs weekly 53 $4.77
Broil element 3,400 4 hrs weekly 58 $5.22
Self-clean cycle 2 hrs monthly 5 $0.45
         
Microwave Oven 1,450 15 mins daily 11 $0.99
Clothes Dryer 5,600 1 hr daily 105 $9.45
Clothes Washer 540 1 hr daily 14 $1.26
         
Dishwasher
Energy Star N/A N/A 26 $2.34
Drinking Water Cooler 140 N/A 42 $3.78
         
Freezer - Energy Star
Chest manual defrost 13 cu. ft. * 27 $2.43
Upright frost-free 17 cu. ft. * 51 $4.59
         
Freezer - Non-Energy Star (15-20 years old)
Chest manual defrost 15 cu. ft. * 85 $7.65
Upright frost-free 20 cu. ft. * 150 $13.50
         
Refrigerator - Energy Star
Side-by-side standard 25 cu. ft. * 44 $3.96
Top freezer 18 cu. ft. * 32 $2.88
Bottom freezer 25 cu. ft. * 40 $3.60
         
Refrigerator – Non-Energy Star (15-20 years old)
Side-by-side standard 22 cu. ft. * 190 $17.10
Side-by-side standard 25 cu. ft. * 210 $18.90
Top freezer 19 cu. ft. * 135 $12.15
Top freezer 24 cu. ft. * 165 $14.85
         
Electric Water Heater
Family of four 4,500 N/A 340 $30.60

* Operation is thermostatically controlled and is affected by a number of variables, including air temperature surrounding the unit, temperature setting within the unit, and the number of times the door is opened.

Small Appliances

Appliance Wattage Operating
Time
Average kWh
Per Month
Average
Monthly Cost
Blender 400-650 5 mins daily 1.3 $0.12
Clock 2 24 hrs daily 1.5 $0.14
Coffee maker
Brew 1,500 10 mins daily 8 $0.72
Warm 100 4 hrs daily 12 $1.08
Crock pot 200 16 hrs weekly 13 $1.17
Curling iron 40 15 mins daily 0.3 $0.03
Electric blanket 190 4 hrs daily 23 $2.07
Fan
20" Box 167 4 hrs daily 20 $1.80
Ceiling 60-100 4 hrs daily 9.6 $0.86
12" oscillating 47 4 hrs daily 5.6 $0.50
Food processor 450 2 hrs weekly 4 $0.36
Garbage disposal 390 5 mins daily 1 $0.09
Grill 1,500 30 mins daily 22.5 $2.03
Hair dryer 1,200-1,800 15 mins daily 11 $1.01
Hot rollers 850 20 mins daily 8.5 $0.77
Hand mixer 125 30 mins weekly 0.3 $0.03
Combo function mixer 325 30 mins weekly 0.7 $0.06
Humidifier 115 4 hrs daily 14 $1.26
Iron 1,200 20 mins daily 12 $1.08
Oxygen concentrator 447 24 hrs daily 322 $28.98
Toaster
2-slice 900 5 mins daily 2.5 $0.23
4-slice 1,650 5 mins daily 4 $0.36
Toaster oven 1,100-1,500 30 mins daily 11.7 $1.05
Vacuum cleaner 1,140 20 mins weekly 2.5 $0.23
Vaporizer 650 10 hrs monthly 6.5 $0.59
Water bed heater 400-600 Varies with time of
year and temperature
110 $9.90

Heating and Cooling

Appliance Efficiency Rating Wattage/Capacity Avg kWh
Per Month
(cool)
Avg
Monthly Cost
(cool)
Avg kWh
Per Month
(heat)
Avg
Monthly Cost
(heat)
Heat pump & air conditioner*
10 SEER
7.2 HSPF
2 ton 720 $64.80 500 $45.00
3 ton 1,080 $97.20 750 $67.50
4 ton 1,440 $129.60 1,000 $90.00
5 ton 1,800 $162.00 1,250 $112.50
13 SEER
8.0 HSPF
2 ton 554 $49.85 450 $40.50
3 ton 831 $74.77 675 $60.75
4 ton 1,108 $99.69 900 $81.00
5 ton 1,385 $124.62 1,125 $101.25
15 SEER
8.7 HSPF
2 ton 480 $43.20 414 $37.24
3 ton 720 $64.80 621 $55.86
4 ton 960 $86.80 828 $74.48
5 ton 1,200 $108.00 1,034 $93.10
Window/wall air conditioner
6,000 Btu/h 190 $17.10
12,000 Btu/h 380 $34.20
18,000 Btu/h 575 $51.75
Evaporative cooler
8 hrs on high/12 hrs on low 3,100 cfm 152 $13.68
4,000 cfm 201 $18.09
5,000 cfm 290 $26.10
6,500 cfm 401 $36.09
Resistance heating
Central furnace 15,350 watts 1,380 $124.20
20,490 watts 1,845 $166.05
Room baseboard units 1,500 watts 180 $16.20
Space heaters 1,500 watts 180 $16.20

* Cooling and heating costs reflect averages for mid-summer and mid-winter.

Shop Equipment

Tool Wattage Daily
Operating
Time
Average kWh
Per Month
Average
Monthly Cost
Bench grinder 1/4 hp 271 5 mins 0.7 $0.06
Drill
1/4" 218 5 mins 0.5 $0.05
3/8" 264 5 mins 0.7 $0.06
1/2" 360 5 mins 0.9 $0.08
Drill press 1/2 hp 660 5 mins 1.7 $0.15
Power saw
Circular 6 1/2" 860 5 mins 2.2 $0.20
Radial arm 10" 1,100 5 mins 2.8 $0.25
Sabre 1/4 hp 290 5 mins 0.7 $0.06
Router 1 hp 780 5 mins 2 $0.18
Sander
Belt 1 hp 900 5 mins 2.3 $0.21
Pad 1/5 hp 240 5 mins 0.6 $0.05
Soldering gun welder 140 5 mins 0.4 $0.04

Home Office Equipment

Appliance Wattage Operating
Time
Average kWh
Per Month
Average
Monthly Cost
Answering machine 30 24 hrs 22 $1.98
Fax 156 1 hr 3 $0.27
Home computer 180-460 2 hrs 19 $1.73
Printer 480 1 hr 10 $0.90

Lighting

Lighting Wattage Daily
Operating
Time
Avg kWh
Per Month
Avg
Monthly Cost
Incandescent
40 5 hrs 6 $0.54
60 5 hrs 9 $0.81
75 5 hrs 11 $0.99
100 5 hrs 15 $1.35
150 5 hrs 22 $1.98
CFL 18 5 hrs 3 $0.27
Fluorescent
2-foot length 20 5 hrs 3.3 $0.30
4-foot length 40 5 hrs 6.6 $0.59
8-foot length 75 5 hrs 12.4 $1.12
Christmas
Indoor: 50 lights, miniature 60 6 hrs 11 $0.99
Outdoor: 25 lights, 7 watts each 175 6 hrs 32 $2.88
LED, 25-light strand 5 6 hrs 0.9 $0.08

Entertainment and Recreation

Appliance Wattage/
Horsepower
Daily
Operating
Time
Average kWh
Per Month
Average
Monthly Cost
Aquarium filter pump 5 24 hrs 4 $0.36
Aquarium light 25 10 hrs 8 $0.68
Portable radio 10 1 hr 0.3 $0.03
Short-wave receiver 6 2 hrs 0.4 $0.04
Video recorder 40-100 3 hrs 6 $0.54
Pool or spa filter motor
1/2 hp 10 hrs* 200 $18.00
1/2 hp 4 hrs** 80 $7.20
3/4 hp 10 hrs* 280 $25.20
3/4 hp 4 hrs** 110 $9.90
1 hp 10 hrs* 350 $31.50
1 hp 4 hrs** 140 $12.60
1 1/2 hp 10 hrs* 460 $41.40
1 1/2 hp 4 hrs** 185 $16.65
2 hp 10 hrs* 530 $47.70
2 hp 4 hrs** 210 $18.90
Spa heater
5 kW 2 hrs 300 $27.00
11 kW 2 hrs 660 $59.40
Television
Color 13" 60 4 hrs 7 $0.65
Color 19" 100 4 hrs 12 $1.08
Color 27" 125 4 hrs 15 $1.35
Color 43" 200 4 hrs 24 $2.16
19" LCD 46 4 hrs 6 $0.50
32" LCD 112 4 hrs 13 $1.21
42" LCD 205 4 hrs 25 $2.21
52" LCD 329 4 hrs 39 $3.55
32" Plasma 275 4 hrs 33 $2.97
42" Plasma 375 4 hrs 45 $4.05
50" Plasma 480 4 hrs 58 $5.18
Projection TV, 42"-50" 375 4 hrs 45 $4.05

* Recommended operating time during swimming season.
** Recommended operating time during the off-season.

How do these lists help me save money?

By reviewing your current energy usage, you can find potential opportunities for energy savings in your home. You might find out that a few easy strategies can provide big results.

How do I know if this information applies to me?

The Kilowatt Counter information shows consumption in an "average" household.

Actual consumption may vary depending on:

  • Home construction
  • Equipment
  • Family usage patterns