KEY CHANGE OPERATION

 Demarcate meters into smaller groups

 Do a key change on one group at a time

 Set up a help-line front desk to deal with exceptions

OPTION 1

• Issue key change tokens to consumers when they purchase credit
• Consumer enters the key change tokens before entering the credit

OPTION 2

• Issue key change tokens to trained technical team
• Technical team visits each meter and enters the key change tokens

 Start as soon as possible and spread the operation over a manageable period of time