Link to Seattle City Light Home Page Link to Seattle City Light Home Page Link to Seattle City Light About Us Page Link to Seattle City Light Contact Us Page
Lighting Seattle since 1905 Jorge Carrasco, Superintendent
Money in hand How to Stretch Your Energy Dollar
  How Much Energy Do Your Electric Appliances Use? How Much Do They Cost To Run?
 

These calculations are based on rates effective 7/1/01.

Costs based on current rates are posted on our most recent Appliance Operating Costs page.

 
  Appliances Home, Conservation

  General Information

Rates effective 7/1/01 form the basis for these calculations. City Light rates are structured to provide an initial block of inexpensive electricity to cover basic life needs such as cooking, hot water and refrigeration; a second block to cover additional needs of most users; and a higher-priced third block for large users. At rates in effect July 1, 2001, customers are billed $0.0372 per kWh for the first 300 kWh used per month (480 in winter). Customers are billed $0.0805 per kWh for second block use of 301-1800 kWh per month (481-3750 in winter). Customers are billed $0.1600 per kWh for third block use of all over 1800 kWh per month (3750 in winter). The calculations in this table are based on the current second block rate of $0.0805 per kWh. High users should substitute the third block rate in these calculations.

Wattage figures may vary. Wattage is generally specified on the appliance.

Call an Energy Advisor at 206.684.3800 or send email to SCLEnergyAdvisor@seattle.gov for more ways to save energy in the home.

We've added an interactive calculator for those who want to do their own math.
   
  Kitchen
Appliance Wattage Time kWh Cost Bimonthly Bill Impact
Broiler oven 3000 15 min 0.750 $0.060 $3.62
Coffee maker 900 10 min 0.150 $0.012 $0.72
Dishwasher - hot water wash/rinse 1400 1 hr 1.400 $0.113 $6.76
Food mixer or blender 200 2 min 0.007 $0.001 $0.03
Oven, microwave 1600 20 min 0.533 $0.043 $2.58
Oven, regular or self-clean 3750 1 hr 3.750 $0.302 $18.11
Range top 500 2 hr 1.000 $0.081 $4.83
Refrigerator (12 cu ft, manual defrost) 110 5.83 hr 0.642 $0.052 $3.10
Refrigerator (18 cu ft, frost free) 400 6.33 hr 2.533 $0.204 $12.24
Slow cooker or crock pot 150 6 hr 0.900 $0.072 $4.35
Toaster 1200 2 min 0.040 $0.003 $0.19
   
  Laundry
Appliance Wattage Time kWh Cost Bimonthly Bill Impact
Clothes dryer 5600 1 hr 5.600 $0.451 $27.05
Clothes washer, cold water 600 20 min 0.200 $0.016 $0.97
Iron 600 1 hr 0.600 $0.048 $2.90
   
  Lighting
Appliance Wattage Time kWh Cost Bimonthly Bill Impact
Fluorescent bulb (18-watt) 18 2 hr 0.036 $0.003 $0.17
Light bulb (60-watt) 60 2 hr 0.120 $0.010 $0.58
Light bulb (100-watt) 100 2 hr 0.200 $0.016 $0.97
   
  Heating and Cooling
Appliance Wattage Time kWh Cost Bimonthly Bill Impact
Air conditioner, window 4000 2 hr 8.000 $0.644 $38.64
Fan (box) 125 2 hr 0.250 $0.020 $1.21
Furnace, electric 30000 4 hr 120.000 $9.660 $579.60
Heater, baseboard 1500 4 hr 6.000 $0.483 $28.98
Heater, permanent baseboard 1500 4 hr 6.000 $0.483 $28.98
Heater, portable 1500 4 hr 6.000 $0.483 $28.98
Hot Water Heater (energy efficient) 4500 1.30 hr 5.850 $0.471 $28.26
Hot Water Heater (pre 1998) 4500 1.85 hr 8.325 $0.670 $40.21
   
  Entertainment
Appliance Wattage Time kWh Cost Bimonthly Bill Impact
Radio 8 4 hr 0.032 $0.004 $0.23
Stereo 250 2 hr 0.500 $0.040 $2.42
Television 250 4 hr 1.000 $0.081 $4.83
   
  Miscellaneous
Appliance Wattage Time kWh Cost Bimonthly Bill Impact
Clock 3 24 hr 0.072 $0.006 $0.35
Computer 150 4 hr 0.600 $0.048 $2.90
Hair dryer 1500 5 min 0.125 $0.010 $0.60
Hot tub (pre 1990, uninsulated) 2000 8.33 hr 16.667 $1.342 $80.50
Hot tub (360 gal, super insulated) 1500 4.2 hr 6.300 $0.507 $30.43
Pond pump 560 2 hr 1.120 $0.090 $5.41
Sewing machine 200 1 hr 0.200 $0.016 $0.97
Vacuum Cleaner 600 30 min 0.300 $0.024 $1.45
Waterbed heater 300 12 hr 3.600 $0.290 $17.39
   
  For Appliances Not Listed
 
Daily Cost  =   Wattage  X   Time  X   Rate per kWh  ÷   1000

Bimonthly Bill Impact  =   Daily Cost  X   60

  City Light customers: Multiply kWh times 8.05 cents to find the cost per kWh. Effective July 1, 2001, 8.05 cents is the summer residential rate for all kWh over the 300 per month (all over 480 per month in winter).

   
 
Last update: 7/2/01
 
Accounts Home / Stretch Your Energy Dollar | Home Resource Profile

The Seattle City Light Web Team:

Seattle City Light -- 700 5th Avenue, Suite 3200, Seattle, WA 98104-5031 -- 206.684.3000
Mailing address: 700 5th Avenue, Suite 3200, P.O. Box 34023 Seattle, WA 98124-4023