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Eksom says four generators that had stopped working at three power stations were functional again on Wednesday.
Spokesperson, Khulu Phasiwe, says the system is no longer as tight as it was, adding that they've stabilised the system.
He says the power utility needs to build up its diesel and water reserves, which it had used for the past few days as an alternative supplier.
The generators had stopped working at three different power stations on Tuesday.
Meanwhile, Phasiwe said the risk of rolling blackouts still remained, but was low.
He says although the generators are back on line, they're not out of the woods quite yet.
Phasiwe asked consumers to use electricity sparingly and to switch off geysers if they go on holiday.
