Cape Town - Eskom ended stage 1 load shedding on Friday, which started at 08:30, but said it could be reinstated at 17:00.
The power utility said in a statement at 14:10 on Friday that "due to the improved performance at our power stations and thanks to customers decreasing electricity demand, Eskom stopped load shedding at 13:41 on 10 July 2015. It is important to note that restoration of power takes longer in some areas."
While Eskom had implemented stage 1 load shedding across the country, two of the country's biggest cities - Johannesburg and Cape Town - announced on Friday that they had averted the need to cut power in certain areas due to independent plans they had initiated to bypass Eskom's request, while still shedding the required load.
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"As the electricity system is constrained and vulnerable, the risk of implementing load shedding tonight from 17:00 remains high," Eskom said.
"We sincerely apologise for the inconvenience caused by load shedding.
"In winter the electricity demand peaks in the morning and evening as more electricity is used during these times. We appeal to all our customers to continue to reduce their electricity usage throughout the day but to be aware of the need to save more during the peak periods from 06:00 to 10:00 and 17:00 to 21:00.
"As the evening temperatures begin to drop, we urge electricity users to consider energy efficient ways of keeping warm. This is particularly important as we are currently experiencing cold weather across the country.
"Eskom will provide regular updates on the status of the power system through all the media platforms."