Johannesburg - There was no loadshedding planned for Saturday night according to Eskom, but the company repeated its call for restrained electricity use.
It also asked customers to ''consider energy efficient ways of keeping warm''.
It said it was on a massive maintenance drive to improve performance and reliability of power generating units ahead of the expected peak winter demand.
''The focus of the maintenance programme is on reducing the backlog of power generating units that are currently offline due to technical faults," the company said.
It said it would use its emergency reserves, open-cycle gas turbines and pumped storage schemes to augment capacity while the maintenance drive was underway.
Customers were asked to reduce the load on the electricity grid by switching off geysers, air conditioners, pool pumps and all non-essential appliances throughout the day to reduce electricity demand.
''As the nights begin to get colder, we request electricity users to consider energy efficient ways of keeping warm.''