If a Billing Period is shorter or longer than the normal Billing Period as a result of disconnection, a new connection, or change in the meter reading schedule, the bill (including service charge, demand charge, energy charge, and all Rental Facilities charges) is prorated over the number of days in the Billing Period.

NB Power normally reads the Customer's meter every Billing Period. An exception is Residential Service to seasonal Customers, where consumption is estimated at zero for the months in which the meters cannot be read.

An estimated bill may be issued for any Billing Period in which any of the following has occurred:

• NB Power has taken appropriate and reasonable measures to read a Customer's meter but cannot gain access to read the meter;
• The Customer has denied acceptable access to NB Power's representative to read the meter;
• Circumstances beyond NB Power's control make an actual meter reading very difficult.

Estimated bills are payable in all respects as if they were based on actual meter readings.

The Customer will inform NB Power regarding the use of the service. Based on this information, NB Power then establishes the applicable Rate Category.

Any customer whose use of service changes such that the Customer is subject to a different Rate Category will notify NB Power of this change. NB Power will then determine the applicable Rate Category and backbill or refund the Customer as appropriate subject to the provisions of the Electricity Act.