There are some factors that can lead to differences in your bills.
Number of days billed
Bills are generated based on when electricity and gas meter readings are received, and the time you're charged for could range from 27 to 35 days. This difference may give the impression that your usage has dramatically changed from the previous month.
Changes in weather
Very cold winter weather or very hot summer weather can also have a large impact on your bill.
In the winter, heating systems, lights and other appliances are often used more. During the summer, fans and air conditioners can use more power and increase your bill. A quick look at the weather trends on a weather website might offer some clues.
Changes around the house
Something as simple as in-laws staying with you, new appliances or new electronic devices can lead to an increase in your bill.
Rate changes
If you're on a regulated rate or variable rate, your charges could fluctuate due to a changing energy rate.
Bill Adjustments
Occasionally, your electricity use will be based on an estimate. Once we’re able to read your meter – likely during the next bill cycle - you’ll see the confirmed amount on your bill. If you used less electricity than estimated, your bill will be lower. If you used more than the estimate, the difference will be added to your bill.
You can discover more about your bill on our Understanding Your Bill page.