The Transmission Company of Nigeria, TCN, has declared force majeure on two transmission substations in Lagos State following severe flooding that has plunged parts of the state into a blackout. In a statement released on January 7, 2026, TCN cited continuous rainfall as the cause of the flooding that affected the Oworoshoki 33KV and Lekki 330/132KV Transmission Substations.
Oworoshoki Substation Completely Out of Service
According to the statement signed by TCN's General Manager of Public Affairs, Ndidi Mbah, the Oworoshoki 133/33KV Transmission Substation is totally out of service. The flood has affected two power transformers: TR1 with a capacity of 60 MVA and TR3 with a capacity of 30 MVA. Both transformers tripped on no load even after attempted restoration.
"Presently, all power protection and control cables of the two power transformers are submerged inside water, and efforts to evacuate the water have proved ineffective as the rain continues to fall," TCN lamented.
Lekki Substation Remains Operational
In contrast, the Lekki 330/132KV Transmission Substation remains in service. TCN noted that water is continuously being pumped out of the station to maintain operations. However, the company acknowledged that the flooding has severely impacted power supply to customers served by the affected substations.
Ongoing Efforts to Restore Power
TCN assured the public that normalcy may soon be restored. "Our engineers are working, doing everything possible to evacuate the flood to enable them to test the transformers for restoration," the statement added. The company expressed regret for any inconvenience caused to Eco Disco's customers taking supply from the substations.
Impact on Residents and Businesses
The blackout has affected numerous households and businesses in parts of Lagos, including areas relying on the Oworoshoki and Lekki substations. Residents have reported disruptions to daily activities and business operations. TCN has not provided a specific timeline for full restoration but continues to monitor the situation as rainfall persists.
