A system-wide disturbance triggered by the tripping of multiple 330kV transmission lines and the disconnection of some generating units, caused Friday’s national grid collapse, the Nigerian Independent System Operator (NISO) has said. NISO data showed load allocation to 11 electricity distribution companies dropped to zero megawatts (MW) at 1: 00 pm, marking the first grid collapse of 2026. In a statement following the incident, the operator said power generation dropped to zero MW at about 12:40 pm, resulting in a total outage across the interconnected network. Said the operator: “Preliminary…
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