Electric usage varies from day to day and month to month, depending upon a variety of factors including your daily habits, the weather, and the time of year. An increase in your electric usage could be caused by a variety of factors:

## Cold Weather

Electricity bills may be higher during the winter months. It's simple math:

## For example: How much energy does my electric space heater use?

 A portable electric space heater = 1,500 watts Divide that wattage by 1,000 to get the # of kilowatts = 1.5 kilowatts Multiply the kilowatts (1.5) by the number of hours used (4) =6.0 kWh (number of kilowatt hours used for an evening of warming after work until bedtime) Multiply the kWh (6.0) by the cost (22.5 cents per kWh*) = \$1.35 (cost per evening of warming after work until bedtime using the portable space heater)

*The total cost per kWh for customers taking Standard Service generation supply is 22.5 cents
(UI delivery is 14.2 cents and Standard Service supply is 8.3 cents) Your supply rate may vary – check you bill.

## Hints:

• To estimate the hours used, think about how your appliances operate – does the appliance cycle on and off all day? Is it on steady for 8 to 10 hours?
• Think about how you use your appliance. For example: using an electric space heater while enjoying TV = 4 hours, times 20 nights a month = 80 hours of use in a month.
• Look at your bill to understand your billing cycle – it may run mid-October to mid-November, for example, so what you call your November bill may be half October!
• Look at your bill to find the cost of your delivery charges (page 2) and your electricity supply (page 3).

Now you have an idea of the impact of colder weather and warm comfort on your bill!