No risk of blackout, says Eskom

The risk of a total power blackout in South Africa at any point in future is “out of the question”, acting Eskom chief executive Brian Molefe said on Wednesday.

“The prospect of a blackout is virtually non-existent,” he told reporters in Johannesburg during a briefing on the state of the power system.

He gave this assurance despite conceding that power plants were “ageing and volatile”, that cold weather had increased demand and that maintenance would put strain on an already strained system.

Planned maintenance would take 5 500MW out of the system this winter, more than three times the amount of previous winters.

There would be load-shedding “here and there”, but efforts would be made to keep it to a minimum.

“Generation performance has been better than expected in the first half of the year. I think we have outdone ourselves,” Molefe said.

Minimal load-shedding
Asked whether there was not a contradiction between efforts to keep the lights on and doing maintenance, Molefe said there was a need to find the “sweet spot” between the two.

“There’s a sweet spot somewhere in the middle, there’s a give and take between the two objectives. We will as far as possible avoid load-shedding during weekdays [business hours] to minimise the impact on the economy.”

Eskom was spending about R1.5-billion a month on diesel to power its open cycle gas turbines. Included in its request to the National Energy Regulator of South Africa for a 24.7% electricity tariff increase was the need for R10.9-billion to buy diesel for the gas turbines.

Molefe said the power cuts in the week starting June 8 were caused by an increase in demand, more unplanned breakdowns and the loss of 800MW from a solar generation plant in the Northern Cape owing to cloud cover. –


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