The City of Johannesburg's (CoJ's) electricity utility City Power will upgrade smart electricity meters, or replace older meters, as the token identifier system, which is the current prepaid electricity voucher system, will run out of voucher sequences for the unique tokens produced specifically for each meter by November 24, 2024. The token identifier system is a security measure that ensures a token can only be used once and for the meter number it was bought for. Tokens bought after November 24 next year will not be recognised by the current prepaid meters, which have been installed since 1993, says CoJ environment and infrastructure services MMC Michael Sun.
