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It takes just a little energy to save on energy costs. If you pay attention to the little things, the money you save will add up in a big way. The chart below gives you a good idea of energy costs per electrical appliance, kind of like nutrition fact labels on food. See also our Twelve Easy Ways to Save Energy.

 

 

Category Detail Estimated Energy Usage* Estimated Energy Costs**
Heating Space heating, electric    
  Portable heater (1500W) 1.5 kWh/hr $0.17/hr
  Baseboard heater (six foot unit) (250 W/foot) 1.5 kWh/hr $0.17/hr
  Heat Pump heat strips 10 kWh/hr w/fan $1.10/hr
  Electric Furnace 10.5 kWh/hr w/fan $1.16/hr
  Heat Pump w/o heat strips (1.8 COP)***    
  1.5 ton 2.93 kWh/hr $0.32/hr
  5.0 ton 9.77 kWh/hr $1.07/hr
 
Air Conditioning/ Cooling Window/wall (8kBtu) (120V-12 EER) 0.73 kWh/hr $0.08/hr
  Window/wall (18kBtu) (240V) 1.8 kWh/hr $0.20/hr
  Central (3 ton-12 SEER) 3.0 kWh/hr $0.33/hr
  Whole house fan 0.2-0.4 kWh/hr $0.03 - $0.05/hr
  Portable fan 0.03 kWh/hr Less than $0.03/hr
  Ceiling fan 0.075 kWh/hr $0.01/hr
 
Water Heating Electric water heater 380 - 500 kWh/mo $41.00 - $55.00/mo
(All uses) Instantaneous (110 v 29 amp) @1gpm 70'F 380 - 500 kWh/mo $41.00 - $55.00/mo
  Instantaneous (240 v 50 amp) @2.5 gpm 83'F 12 kWh/hr $1.32/hr
 
Kitchen Range, electric    
  Oven 2.3 kWh/hr $0.25/hr
  Oven: Surface 1-1.5 kWh/hr $0.11 - $0.17/hr
  Oven: Self-cleaning feature 6 kWh/hr cleaning $0.66/hr
  Microwave oven 0.12 kWh/5 min $0.01/5 min
  Broiler, portable electric 1.5 kWh/hr $0.17/hr
  Coffee maker 0.12 kWh/brew $0.01/brew
  Coffee maker/brew, warmer on 0.4 kWh/hr $0.04/hr
  Dishwasher: normal cycle (not including hot water) 1 - 2.17 kWh/load $0.11 - $0.24/load
  Dishwasher: Energy saver cycle 0.5 kWh/load $0.06/load
  Toaster (2 slices) 0.04 kWh/use $0.01/hr
  Toaster oven 0.75 kWh/hr $0.08/hr
  Waffle iron, 4 servings 0.33 kWh/use $0.04/use
 
Refrigerator/Freezer Older units    
  Refrigerator (frost-free), 15 cu. Ft. (1996 unit) 150 kWh/mo $16.50/mo
  Freezer (manual defrost), 15 cu. Ft. 90 kWh/mo $9.90/mo
  Refrigerator (frost-free), 15 cu. Ft. (1996 unit) 50 kWh/mo $5.50/mo
  Refrigerator (frost-free), 20 cu. Ft. (1996 unit) 54 kWh/mo $5.94/mo
  Newer units    
  Refrigerator, 1.7 cu. Ft. 30 kWh/mo $3.30/mo
  Energy Star Refrigerator, 14 cu. Ft. 43 kWh/mo $4.73/mo
  Energy Star Refrigerator (frost-free), 14 cu. Ft. 57 kWh/mo $6.27/mo
  Energy Star Refrigerator (frost-free), 17 cu. Ft. 73 kWh/mo $8.03/mo
  Energy Star Refrigerator (frost-free), 19 cu. Ft. 80 kWh/mo $8.80/mo
  Energy Star Refrigerator (Side by Side) 21 cu. Ft. 123 kWh/mo $13.53/mo
  Energy Star Refrigerator (frost-free) 24 cu. Ft. 102 kWh/mo $11.22/mo
  Energy Star Refrigerator (Side by Side) 25 cu. Ft. 132 kWh/mo $14.52/mo
 
Electronics Television    
  > 50" Plasma 0.48 kWh/hr $0.05/hr
  40" - 49" Plasma 0.4 kWh/hr $0.04/hr
  > 50" LCD 0.22 kWh/hr $0.02/hr
  40" - 49" LCD 0.15 kWh/hr $0.02/hr
  > 50" DLP 0.24 kWh/hr $0.03/hr
  40" - 49" DLP 0.2 kWh/hr $0.02/hr
  30" - 36" Tube 0.12 kWh/hr $0.01/hr
  25" - 27" Tube 0.09 kWh/hr $0.01/hr
  Recording/Video Playing Devices    
  DVR (Tivo) 28.8 kWh/mo $3.17/mo
  VCR 0.02 kWh/hr Less than $0.01/hr
  DVD player 0.03 kWh/hr Less than $0.01/hr
  Gaming    
  Nintendo Wii 0.02 kWh/hr Less than $0.01/hr
  Xbox 360 0.15 kWh/hr $0.02/hr
  Play Station 3 0.21 kWh/hr $0.02/hr
  Computers    
  Desktop Computer 0.06 - 0.25 kWh/hr $0.01 - $0.03/hr
  Desktop Computer on sleep/standby mode 0.001 - 0.006 kWh/hr Less than $0.01/hr
  Laptop 0.02 - 0.05 kWh/hr Less than $0.01/hr
  Monitor - 17" CRT 0.08 kWh/hr $0.01/hr
  Monitor - 17" LCD 0.04 kWh/hr Less than $0.01/hr
  Other    
  Speakers (25 Watts x 2) normal volume 0.05 kWh/hr Less than $0.01/hr
  Stereo 0.05 kWh/hr Less than $0.01/hr
  Radio, CD player 0.02 kWh/hr Less than $0.01/hr
 
Lighting Incandescent bulbs    
  Incandescent bulb (40 W) 0.04 kWh/hr Less than $0.01/hr
  Incandescent bulb (60 W) 0.06 kWh/hr $0.01/hr
  Incandescent bulb (75 W) 0.08 kWh/hr $0.01/hr
  Incandescent bulb (100 W) 0.1 kWh/hr $0.01/hr
  Incandescent bulb (150 W) 0.15 kWh/hr $0.02/hr
  Compact fluorescent (CFL)    
  Compact fluorescent (8 W) equivalent to 25 W incandescent 0.008 kWh/hr Less than $0.01/hr
  Compact fluorescent (11 W) equivalent to 40 W incandescent 0.01 kWh/hr Less than $0.01/hr
  Compact fluorescent (15 W) equivalent to 60 W incandescent 0.015 kWh/hr Less than $0.01/hr
  Compact fluorescent (20 W) equivalent to 75 W incandescent 0.02 kWh/hr Less than $0.01/hr
  Compact fluorescent (27 W) equivalent to 100 W incandescent 0.027 kWh/hr Less than $0.01/hr
  Compact fluorescent (38 W) equivalent to 150 W incandescent 0.038 kWh/hr Less than $0.01/hr
  Halogen    
  Halogen (300 W) 0.3 kWh/hr $0.03/hr
 
Laundry Clothes dryer (light load vs. heavy load) 2.5 - 4 kWh/load $0.28 - $0.44/hr
  Electric heated water    
  Warm Wash, cold rinse 2.3 kWh/load $0.25/load
  Hot wash, warm rinse 6.3 kWh/load $0.69/load
 
Household Goods Vacuum cleaner 0.75 kWh/hr $0.08/hr
  Iron 1.08 kWh/hr $0.12/hr
  Clock 2 - 4 kWh/mo $0.22 - $0.44/mo
  Night light (4w on 12-hours/day) 1.44 kWh/mo $0.16/mo
  Electric Blanket: Twin 0.5 kWh/night $0.06/night
  Electric Blanket: Double/Queen 0.75 kWh/night $0.08/night
  Electric Blanket: King 1 kWh/night $0.11/night
  Aquarium 0.05 - 1.21kWh/hr $0.01 - $0.13/hr
 
Bathroom Hair dryer 1.5 kWh/hr $0.17/hr
  Curling iron 0.05 kWh/hr Less than $0.01/hr
  Whirlpool tub 1.8 kWh/hr $0.20/hr
 
Swimming Pool Sweep pump (3/4 hp) 0.56 kWh/hr $0.06/hr
  Filter pump (1-1/2 hp) 1.12 kWh/hr $0.12/hr
  Filter pump (2 hp) 1.5 kWh/hr $0.17/hr
 
Spa/Hot Tub Electric heater (1500 W) 1.5 kWh/hr $0.17/hr
  Electric heater (5500 W) 5.5 kWh/hr $0.61/hr
 
Medical Equipment Nebulizer 1 kWh/hr $0.11/hr
  Oxygen Concentrator 0.46 kWh/hr $0.05/hr
  Sleep Apnea Machine (CPAP) 0.2 kWh/hr $0.02/hr
 
* Estimated energy use is based on average operation conditions. Individual use may vary.
** Estimated costs based on $0.11 per kWh
*** COP = Coefficient of Performance. An electric resistance heater has a COP of 1
GPM - Gallons per minute
SEER - Seasonal Energy Efficiency Ratio (efficiency given to central air conditioning)
EER - Energy Efficiency Ratio (efficiency given to window/wall air conditioners)
Last updated: 2/4/2014 4:20:12 PM