Electricity has no odor and can't be seen, so it is often puzzling where your energy dollar goes! While consumption patterns vary from home to home, we have some average consumption figures for home electric energy.

A kilowatt-hour (kWh) is a measure of electric energy consumed over a period of time. A watt is the amount of energy required to operate the electric device. To calculate the wattage of an appliance, multiply the voltage by the amperage. These values are typically found on the backside or bottom of the appliance or on the nameplate. To convert the watts to kilowatts, simply divide by 1000. Once you know the kilowatt value, multiply by the number of hours of operation to determine the kilowatt-hour consumption.

Where energy is used in your home:

Air conditioner

1 kWh/sq. ft./year

Car engine block heater

.5 kWh/hour

Clothes dryer

5 kWh/load

Dehumidifier (running continuously)

16 kWhs/day


1.5 kWh/load


100-190 kWh/mo.

Frost free freezer

150-240 kWh/mo.

Furnace (LP) winter months

325 kWh/mo

Lighting (varies)

150 kWh/mo


16 kWh/mo.


100-150 kWh/mo.

Refrigerator, standard

120-150 kWh/mo

Refrigerator, frost free

200-275 kWh/mo.

Television (4 hours/day)

40 kWh/mo.

Water heater

125 kWh/person/mo

Waterbed heater

60-100 kWh/mo.

Water pump

1.5 kWh/1000gal

Yard light

.175 watt Mercury vapor

73 kWh/mo.

.90 watt Hi Pressure Sodium

40 kWh/mo.

The kilowatt hour consumption figures shown here are based on averages. Your consumption mayvary.