The Nigerian national electricity grid experienced a partial system disturbance on Tuesday, originating from the Gombe Transmission Substation, according to the Nigerian Independent System Operator. The incident, which occurred at approximately 10:48 a.m., caused a voltage disturbance that rapidly spread across the network, affecting the Jebba, Kainji, and Ayede Transmission Substations. This led to the tripping of some transmission lines and generating units, resulting in a partial system collapse.
The power generation dropped significantly, from 3,825 megawatts at 10 a.m. to just 39 megawatts at 11 a.m. The load allocation to distribution companies was 0.00 MW at the time of the incident, indicating that no electricity was being supplied. However, the System Operator reported that restoration efforts began at 11:11 a.m. and were completed shortly after, with electricity supply returning to normal.
This incident marks the second grid collapse in January 2026 and the third in less than a month, following previous collapses on December 29, 2025, and January 23, 2026. The Nigerian Independent System Operator attributed the prompt restoration to coordinated control room interventions and automated protection mechanisms embedded across the grid.
The partial system collapse has raised concerns about grid stability and the need for investment in transmission infrastructure. The incident highlights the importance of a stable electricity supply in a country where millions of households and businesses rely on it. The Nigerian Independent System Operator has assured that the national grid has been fully restored and electricity supply has returned to normal.
The power sector is currently discussing ways to improve grid stability, invest in transmission infrastructure, and implement rapid response mechanisms to minimize service interruptions. The incident has underscored the need for these discussions to yield concrete results, ensuring a reliable electricity supply for the country’s growing population and economy. As the Nigerian Independent System Operator continues to work towards improving the grid’s stability, the incident serves as a reminder of the importance of a stable electricity supply in driving economic growth and development.
