Nigeria: National Power Grid Collapses Again

The Eko Electricity Distribution Company on Tuesday confirmed the total system collapse of the Transmission Company of Nigeria national grid.

"There has been a total system collapse of the TCN national grid as confirmed by NCC Osogbo," EKEDC tweeted.

Although the distribution company did not release when the system collapse occurred, it said, "massive efforts have been on going to effect repairs and restore supply."

"For now, all our substations are on station supply, but restoration has commenced," it added.

The National Control Centre (NCC), Osogbo is responsible for all TCN grid operations, monitoring and control within the transmission network.

It is equipped with state of the art Supervisory Control and Data Acquisition (SCADA)/ Energy Management System, Tele-control Interfaces, Human Machine Interfaces, Communication Equipment, System Planning tools etc. Functionally, NCC supervises all the Regional Control Centres in the grid network.

The latest grid collapse is the fourth in 2019. In January, the nation's power grid also collapsed twice, worsening power supply in parts of the country.

According to the Nigerian Electricity Regulatory Commission, a total system collapse means total blackout nationwide, while partial system collapse is a failure of a section of the grid.

The Transmission Company of Nigeria has announced that the national grid achieved frequency control of between 49.80 Hertz and 50.20Hz for 64.47 per cent of the time and frequency control between 49.75Hz and 50.25Hz for 85.55 per cent between December 27, 2018 and January 12, 2019.

According to TCN, the recent record in frequency control was the best ever achieved in the history of Nigeria, as well as the best in West Africa at the moment.

It said the frequency control achieved from January 8 to 12, 2019, was the best so far by any power utility in West Africa.

TCN said its management decided to further stabilise the frequency after the workshop on frequency control organised by the West African Power Pool in Nigeria in December 2018.

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