Debt Recovery Methods - Secure Liberty 100 Technical Reference Manual

5.5.5 Debt Recovery Methods

Liberty 100 meters operating in Prepayment mode can be configured to collect outstanding debts by two
methods:
• Payment based
• Time based
The meters can be configured to maintain a maximum of three debt registers from the following combinations:
1. One payment-based debt register
2. One time-based debt register
3. One payment-based debt register and one time-based debt register
4. Two time-based debt register
5. Two time-based and one payment-based debt register
Note: Retailers can cancel outstanding debt via an authenticated command.
5.5.5.1 Payment-based Debt Collection Method
For this method the meter is configured to collect a debt amount from the outstanding debt when users add
credit to the meter. The debt deduction amount is a defined percentage of the credit added to the meter and will
have a debt recovery rate cap for a defined period (days/weeks/months). The following example further explains
this method:
A meter is configured to deduct 10% of the credit added towards debt collection and is defined with a debt
recovery cap of £15 for debt recovery period of 1 week. If the meter has £35 of initial outstanding debt, the
deductions will be as follows:
1. When £100 credit is sent to the meter, £10 will be deducted towards debt collection and the balance £90 is
added to the meter account.
2. When £100 credit is sent to the meter a second time in the same week, £5 will be deducted towards debt
collection and the balance £95 is added to the meter account.
3. When £100 credit is sent to the meter a third time in the same week, there will be no deductions towards
debt collection and the entire £100 is added to the meter account.
The remaining £20 of outstanding debt will be deducted in the similar way when credit is sent to the meter in
subsequent weeks until the full debt amount is recovered.
5.5.5.2 Time-based Debt Collection Method
For this method the meter is configured to collect a defined debt amount daily at midnight against the
outstanding debt. If the meter has insufficient credit balance at the time of debt deduction, the uncollected debt
deduction amount will be collected during the subsequent credit top-up by the customer. Time-based debt
deduction conforms to the following rules:
• If the meter is configured not to collect debt amount from outstanding debts when the user is using
Emergency Credit then this amount is stored in the debt register and the debt collection starts only after
credit top-up.
• No debt will be deducted or stored when the meter account balance is zero or negative and during the
supply disconnection period.
Page 34 of 116 Liberty 100 Smart Electricity Meter Technical Reference Manual BGX501-767-R02