UPDATE 1-No end date for South African power cuts as capacity shortages persist

South Africa's Public Enterprises Minister Pravin Gordhan said on Tuesday he cannot say yet when rolling blackouts will end, as power utility Eskom struggles with capacity shortages that threaten to thwart efforts to boost economic growth.

Eskom supplies more than 90 percent of the power in South Africa but has suffered repeated faults at its coal-fired power stations, along with low water levels at hydroelectric plants, diesel shortages and loss of imports from Mozambique. Around 17,000 megawatts of Eskom's installed capacity of 45,000 megawatts was unavailable, Gordhan said.

"Engineers are visiting the power stations themselves to give us an independent view of what is going wrong and how quickly we can repair what is going wrong," Gordhan told journalists. "We need to complete these investigations, and we will come back to you in the next 10 to 14 days."

Eskom has continuously implemented power cuts since Thursday, with up to 4,000 megawatts cut from the grid on a rotational basis. The power cuts have disrupted businesses, particularly the small- and medium-sized firms, and have also prompted frustrations among ordinary people ahead of an election in May.

Apart from faults at the new Medupi and Kusile mega power plants, three other coal-fired plants were suffering severe problems, Eskom executives said. The executives also said Eskom was expecting to receive a diesel shipment on Friday to replenish its fuel supplies. Eskom burns diesel when it cannot produce enough from its coal plants. (Reporting by Alexander Winning; Writing by Olivia Kumwenda-Mtambo; Editing by Alison Williams)

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