But they warned there is still a risk of load-shedding as the system remains “vulnerable”.
Loadshedding will only be implemented when absolutely necessary, Eskom said.
The Sunday Times reported the power utility is scrambling to secure a contract for the early detection of leaks on boilers of its power plants before these fissures expand and lead to units crashing.
Such a contract lapsed in 2017 and Eskom has been unable to pin down a new one.
During a briefing on Tuesday by public enterprises minister Pravin Gordhan, Eskom COO Johan Oberholzer said the lapse in the previous contract had contributed to last week’s stage 4 power cuts.
Meanwhile, the Hawks are probing how Eskom funds earmarked for crucial maintenance of power plants were diverted to the Kusile power station project and other capital expenditure programmes - where they were allegedly looted through dodgy tenders.
Lack of maintenance on power plants since the Soccer World Cup in 2010 is a key factor in the debilitating rolling blackouts that have hammered the economy.