Power utility Eskom says it has successfully completed its prepaid meter Key Revision Number (KRN) rollover project, but has set a new deadline of December 13 to assist paying customers who are still experiencing challenges and an estimated 1.7-million zero buyers that are yet to complete the upgrade. Eskom points out that it started off with a customer base of 6.91-million prepaid customers, while a data cleaning exercise fully updated the incomplete details of 341 000 customers, taking the customer base to 7.25-million.