If your bill has been estimated 

 If the meter reader hasn't been able to access your meter to read it, where possible, your account will be produced based on your average usage at the same time last year.

If you have solar, your export will also be estimated, and where possible based on your average exports at the same time last year.

Any discrepancies between the estimate and your actual usage will be fixed at the next account you receive with an actual read. 

If your previous bill was estimated 

If your current bill was an actual read, but the bill before was an estimate this may cause your bill to be higher, or lower, than expected. Where possible, we’ll base the estimates on your average usage at the same time last year, however, because this is an estimate it may not be accurate.

If you receive an estimated bill, you can use our bill estimator tool to check how accurate the estimation is which can potentially help you budget for your next bill.