However, the power system remained "tight and vulnerable", and while Eskom was making every effort to limit load-shedding, it could be implemented at short notice should there be a significant shift in plant performance, Eskom said in a statement.

"This could include a significant loss in generating plants due to unplanned technical breakdowns.

"We continue to appeal to residents and businesses to use electricity sparingly during this period. Please switch off geysers as well as all non-essential lighting and electricity appliances to assist in reducing demand," Eskom said.

African News Agency (ANA)