Eskom says that there is a high risk of load shedding for Wednesday as the system remains vulnerable.
On Tuesday, the utility said there was only a medium risk of power cuts. The parastatal says that electricity will only be cut as a last resort.
Last month, the country experienced five straight days of power cuts with the escalation of stage 4 load shedding.
At the time, the utility said that cutting its maintenance expenditure has had a major impact on the performance of its plants.
Eskom has been battling with aging infrastructure, which needs major maintenance to perform efficiently.