After implementing rotational load shedding throughout the night Eskom says it will continue with stage 4 from 8am to 11pm.
In a statement, the power utility says it experienced a further decline in water reserves, which was used to supplement generation capacity.
Eskom has attributed implementing stage 4 to the loss of capacity which includes imports from Mozambique which recently experienced a tropical cyclone.
The utility has appealed to customers switch off geysers during the day and non-essential appliances to assist in reducing demand.
Customers have also been urged to check the load shedding schedule on Eskom’s website.