Your bill is calculated on your energy usage, based on the meter reading that you provide us with. If we do not receive a meter reading, we estimate your bill, based on your previous usage.
Yes, in fact it is the easiest way to do so. Simply log into your account to view your bill and make payments.
To view your bills online, simply go to Energy Online Account and select Home Account, then select the My Bills / Letters option. These bills can be viewed online as well as being saved and printed.