Eskom will implement Stage 1 load-shedding between 4pm and 10pm on Wednesday.
The power utility says it has managed to return four electricity units, improving its generation capacity.
Eskom says it expects two more units to start working again on Wednesday.
The utility is urging South Africans to use electricity sparingly.
In other news – Kabelo Mabalane runs from Jozi to Durban to raise R6m for hungry children
Kwaito legend Kabelo ‘Bouga Luv’ Mabalane, together with his fellow comrades marathon runner Peteni Khuzwayo, are embarking on the “toughest mission” of 600km steps of hope, running from Johannesburg to Durban. Learn more