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The Nigerian Independent System Operator (NISO) dismissed reports of a collapse of the national power grid, and attributed a sharp drop in power supply on Monday to a localized partial grid disruption that has since been fully resolved.
This clarification followed an incident at around 12.40 WIB on Monday, October 19 2026, when the 330 kilovolt (kV) transmission network experienced repeated tripping. The disruption triggered an 87.6 percent drop in total power generation—down from about 3,840 megawatts (MW) at 07.00 to 476.70 MW at 13.00—and resulted in several large power plants, including Egbin, Jebba, Shiroro, and Kainji, producing no output at all.
In an official statement issued by its management on Monday, NISO confirmed that rapid intervention with technical teams succeeded in restoring operations across the affected transmission corridors.
“The Independent System Operator of Nigeria wishes to inform the public that at approximately 12:40 on Monday, 19 October 2026, the national grid experienced some disruption on the 330kV transmission network,” the statement read.
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“Following the incident, NISO, in collaboration with TCN, immediately implemented appropriate remedial measures to stabilize the power system and restore normal operations. Recovery efforts have been successfully completed, and the national power grid has returned to normal operations.
“NISO would like to clarify that the incident only affected a portion of the power grid, contrary to unverified reports and claims currently circulating in the media.”
Despite the rapid recovery, this temporary downturn highlights the persistence of vulnerabilities in Nigeria’s high voltage bulk electricity transmission system. In response to recurring disruptions, the Federal Government recently approved plans to build a new regional grid network in the eastern and western regions to protect the nation’s electricity supply from single-point transmission disruptions.
NISO reiterated its commitment to providing transparent electricity grid operational updates and urged electricity consumers to verify system status reports directly through its official channels.
