The national electricity grid lost 673 megawatts (MW) on Wednesday after the grid recorded several technical outages across four Generation Companies (GenCos) and four transmission substations.

A network operational report exclusively obtained yesterday gave the breakdown of the losses in what was classified as ‘urgent’ and ‘planned’ power outages. The urgent outages report showed that 123MW of electricity was lost for 12 hours at Afam VI GenCo on Wednesday as a turbine was shut down for the gas supplier to do urgent maintenance on the gas valve.

For another four hours, Ikot Ekpene to Uguwaji 330 kilovolt (KV) transmission line was taken out at the Ikot Ekpene substation after a 110V battery bank exploded at the Ugwuaji substation causing a loss of about 1MW. Makurdi/Jos 330KV was out to stop electricity flow from Ugwuaji to Makurdi due to pole issue on the transmission line. This resulted in a loss of 40MW that lasted for 10 minutes.

However, at the Rivers IPP GenCo, a turbine went off due to urgent gas constraint triggering 140MW loss for six hours 30 minutes. There was a huge 209MW electricity loss that occurred at Omotosho NIPP GenCo that protracted for over an hour. The operational report said it was due to low gas pressure for two turbines of the power plant.

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