Cape Town - Eskom announced on Wednesday evening that it would implement stage 1 load shedding from 18:00.
Eskom said load shedding was likely to continue until 22:00 in the evening.
READ: Eskom going for 6 days of no load shedding
The supplier said it is experiencing a shortage of generation capacity as several units are currently out of service due to maintenance.
"Because of maintenance, the system will not be able to meet 1 000MW of demand, meaning that although certain areas will be without electricity for a certain period, about 96% of South Africans will still continue to receive power supply at the same time," it said.
Eskom has called on all customers to reduce the load on the electricity grid by urgently switching off geysers, air conditioners, pool pumps and all non-essential appliances throughout the day, which will reduce electricity demand.
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