National power utility, Zesa, says it has fixed the technical fault that blacked out the whole country on Monday night.
In its latest update, Zesa said investigations established that the blackout, which occurred at 6:24pm, was triggered by a major electrical fault on the Warren-Alaska 330kV transmission line, resulting in the loss of interconnections with neighbouring regional power utilities.
The power utility said the fault also caused local electricity generation to shut down due to voltage instability and under-frequency, leading to a nationwide loss of supply.
"At 1824 hours, a major electrical fault occurred on the Warren-Alaska 330kV line leading to loss of interconnections with neighbouring regional utilities and subsequently local generation was lost due to voltage instability and under frequency," Zesa said.
The utility said restoration efforts commenced at 7:01pm, with electricity imports secured from Eskom, Kariba Power Station, Hydro Cahora Bassa and Hwange Power Station Units 1, 2 and 3.
"We are pleased to advise that by 2200 hours, power had been successfully restored to most of our bulk supply points across the country," Zesa said.
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