Oil & Energy
Gas Unavailability Stalls 4,024.5MW Generation As TCN Repairs Transformers

The Transmission Company of Nigeria (TCN), has announced that it has repaired one of its 60MVA 132/33kV power transformers in its Sokoto Transmission Substation, as latest industry figures showed that unavailability of gas stalled the generation of 4,024.5 megawatts of electricity.
TCN’s General Manager, Public Affairs, Ndidi Mbah, said the transformer developed fault on March 18, 2020 due to frequent circulation of 33kV feeder fault currents within the transformer, adding that oil filtration would commence on March 25, 2020.
“Meanwhile, work is also ongoing on one of the 30MVA 132/33kV power transformers in the substation which was shut down by the TCN to take care of transformer oil degradation and leakage,” she stated.
She noted that consequently, the TCN had been unable to supply bulk electricity from the transformers to Kaduna distribution company for onward supply to its customers in and around Sokoto State who take supply from the faulty transformers in the Sokoto substation.
“As soon as the oil filtration is completed, the 60MVA power transformer would be energised. Work is ongoing to seal urgently the oil leakage problem on the 30MVA transformer,” Mbah said.
She expressed the regret of TCN to the government and electricity customers in Sokoto State as the firm pledged to expedite ongoing works on the transformers to ensure that normal bulk supply was restored to the Sokoto substation.
Meanwhile, latest industry figures from the Advisory Power Team in the Office of the Vice President, stated that on March 22, 2020, the average energy that was sent out to power users nationwide was 4,127 megawatts-hour/hour.
This was up by 58.22MW from the previous day’s figure, while 4,024.5MW was not generated due to the unavailability of gas on the day under review.
The APT stated that zero megawatt was not generated due to unavailability of transmission infrastructure, while 497.4MW was not generated due to high frequency resulting from unavailability of distribution infrastructure.
It said zero megawatt was recorded as loss due to water management, as the sector lost an estimated N2.17 billion on March 22 due to constraints from insufficient gas supply, distribution infrastructure and transmission infrastructure.
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Dangote Refinery Resumes Gantry Self-Collection Sales, Tuesday
This is revealed in an email communication from the Group Commercial Operations Department of the company, and obtained by Newsmen, at the Weekend.
The company explained that while gantry access is being reinstated, the free delivery service remains operational, with marketers encouraged to continue registering their outlets for direct supply at no additional cost.
The statement said “in reference to the earlier email communication on the suspension of the PMS self-collection gantry sales, please note that we will be resuming the self-collection gantry sales on the 23rd of September, 2025”.
Dangote Petroleum Refinery also apologised to its partners for any inconvenience the suspension may have caused, while assuring stakeholders of its commitment to improving efficiency and ensuring seamless supply.
“Meanwhile, please be informed that we are aggressively delivering on the free delivery scheme, and it is still open for registration. We encourage you to register your stations and pay for the product to be delivered directly to you for free. We sincerely apologise for any inconvenience this may cause and appreciate your understanding,” it added.
It would be recalled that in September 18, 2025, Dangote refinery had suspended gantry-based self-collection of petroleum products at its depot. The move was designed to accelerate the adoption of its Free Delivery Scheme, which guarantees direct shipments of petroleum products to registered retail outlets across Nigeria.
The refinery stressed that the earlier decision was an operational adjustment aimed at streamlining efficiency in the downstream supply chain.
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