Johannesburg - Eskom will implement stage 2 load shedding from 17:00 on Monday which will likely continue until 22:00 because of increased electricity demand and a shortage of generation capacity, said the power utility.
This is due to power station units being on maintenance.
"The power system was constrained but stable for most of the day today, thus enabling Eskom to perform maintenance without the need for load shedding," Eskom said in a statement issued on Monday mid-afternoon.
Eskom said load shedding is implemented as a necessary measure to protect the power system, and to ensure that maintenance is carried out to guarantee electricity supply in the long term.
"Any unexpected changes on the vulnerable and constrained power system could lead to a change in the load shedding stage at short notice," said Eskom.
"As we are currently experiencing cold weather conditions across the country, we urge electricity users to consider energy efficient ways of keeping warm."
Have you downloaded your News24 load shedding app? Download GridWatch