Tag: National Grid

The Transmission Company of Nigeria (TCN) has reacted to the recent collapse of the national grid, which occurred on Saturday morning.

TheNewsGuru.com(TNG) reports that National electricity grid failed on Saturday morning, marking the third time the whole country will be experiencing a blackout this week.

Addressing the collapse, Ndidi Mbah, the TCN’s General Manager for Public Affairs, explained that an explosion in the bus section of a current transformer at the 330kV Jebba Transmission Substation triggered the disturbance.

However, she assured the public that power has since been restored following the incident.

The statement reads, “The Transmission Company of Nigeria hereby states that the national grid experienced a temporary disturbance at about 8:15 am, today, 19th Oct. 2024.

“According to the report from the NCC, the bus section of a current transformer exploded at 330kV Jebba Transmission Substation and as expected, the protection system was activated, and this promptly opened the busbars to curtail the explosion, thereby preventing outbreak of fire and further damage to adjacent equipment.

“The action of the protection system led to a temporary disturbance on the grid.

“Our engineers at Jebba have successfully carried out switchings, isolating the faulty current transformer. They have equally reconfigured the busbar arrangement, restoring power supply to the station, and other parts of the grid.”

The Transmission Company of Nigeria (TCN) has announced that efforts to fully recover the national grid are almost complete following a partial disturbance on Monday.

The disturbance occurred at approximately 6:48 p.m., prompting immediate recovery efforts.

Mrs Ndidi Mbah, TCN’s General Manager of Public Affairs, in a statement on Tuesday, said the recovery process commenced swiftly, with Azura Power Station providing the necessary blackstart.

She said by 10:24 a.m. on Tuesday, the grid recovery had reached advanced stages, in spite of encountering a brief challenge that caused a minor setback.

“Notwithstanding the setback, TCN continued its recovery efforts, achieving significant progress.

“Bulk power availability has been restored to approximately 90 per cent of its substations nationwide, with supply reinstated to the Abuja axis and other major distribution load centres.

“The partial disturbance did not affect the Ibom Gas generating station, which continued to supply power to areas in the South Southern part of the country, including Eket, Ekim, Uyo, and Itu 132 kilovolt transmission substations.”

The Transmission Company of Nigeria (TCN) has disclosed that the Monday’s national grid collapse which threw the whole country into total darkness was partial.

Recall that Enugu Electricity Distribution Company on Monday at about 6:48 pm, confirmed the national grid collapse in a statement by its spokesperson, Emeka Ezeh.

Similarly, the Abuja Electricity Distribution Company and Eko Electricity Distribution Company also confirmed the national grid collapse.

TCN recorded zero load allocation to the eleven Electricity Distribution Companies.

Speaking on the development, the spokesperson of TCN, Ndidi Mbah, disclosed that it has begun system recovery to restore supply.

According to her, the national grid did not collapse entirely as the Akwa Ibom generating Station was “Islanded” to enable it to continue supply through the Eket, Ekim, Uyo and Itu 132 Kilovolt substation.

She said, “It was a partial system disturbance.”

“The entire system did not collapse as the IBOM Generating Station was ISLANDED (i.e. separated to stand alone to continue supplying some areas to avoid the entire system going down), to enable It to continue to supply through the eket, Ekim, Uyo, and Itu 132kv substations.

“Recovery is currently ongoing and has advanced significantly.”

The National grid has collapsed for the fifth time this year, TheNewsGuru.com reports

The Transmission Company of Nigeria, (TCN) confirmed the incident to Punch, saying it was a partial collapse.

The TCN official, who spoke on condition of anonymity, added that power is being restored gradually.

Meanwhile, TCN, in a recent report, disclosed that there’s been a significant decline in the number of national grid collapses over the last five years, amidst ongoing concerns about the country’s power supply stability.

Ndidi Mbah, the General Manager of Public Affairs at TCN, disclosed that Nigeria experienced 227 grid collapses from 2010 to April 2024, both total and partial. However, there has been a noticeable improvement in recent years.

“Between 2020 to date, we recorded fourteen total and six partial grid disturbances, totaling twenty,” Mbah explained.

This represents a 76.47 per cent reduction compared to the previous five-year period from 2015 to 2019, which saw sixty-four total and twenty-one partial disturbances.

The Transmission Company of Nigeria (TCN) says  national grid was restored at about 9.57 p.m. on Saturday after a partial collapse.

TCN’s General Manager, Public Affairs, Ndidi Mbah in a statement in Abuja on Sunday, said there was a partial disturbance of the grid at about 3.09 p.m. on Saturday.

She stated that operators commenced restoration efforts immediately after the incident, noting that “at about 9.57 p.m. on Saturday, the entire part of the grid that was affected was successfully restored.

“The system disturbance, which brings to  three, the partial grid disturbances, with one total disturbance in 2024, is suspected to have been triggered by the unexpected tripping of three units of a power generating station.

“It suddenly removed 313 Megawatts from the grid, causing system instability that led to the loss of bulk supply to a section of the national grid.”

Mbah stated that the system operator reacted to the sudden drop in generation  which led to a dip in frequency.

She explained that the system operator did this by islanding a section of the grid which includes the Ibom Power Station through which the company continued to feed Uyo, Aba, Itu, Eket, Calabar and others, even when the other section of the grid had no supply.

The National grid has collapsed for the fourth time this year, TheNewsGuru.com(TNG) reports

According to the website of the Independent System Operator, which is an autonomous arm of the Transmission Company of Nigeria (TCN), the power plants’ contribution to the grid started to decrease around 2pm, dropping to 2,797.16MW from the average of 3,417.99MW around 1pm.

The electricity contribution further declined to 1,020.08 around 3pm before dramatically falling to 0.80 megawatts of electricity by 4pm.

The Trans-Amadi Power Plant generating 0.80 marks the fourth power grid collapse in 2024.

Details later…