The Transmission Company of Nigeria has declared a 13-day power outage affecting large portions of Delta State, citing essential maintenance work at its 132/33 kilovolt substation. This disruption began on June 4, 2026, and is scheduled to continue until June 16, according to a statement released on Friday by TCN’s spokesperson, Ndidi Mbah.
The federal agency explained that the maintenance involves the installation of a bus coupler circuit breaker and the restoration of five isolators on the main busbar. As a result, the Benin Electricity Distribution company will be unable to supply electricity to several key areas, including Warri, Effurun, and Sapele.
In a detailed update, TCN noted that many 33kV feeders from the Effurun and Delta substations will be inactive during this period. These include feeders such as Effurun, Warri, Sapele, Osubi, PTI, PMSL, Refinery I, Refinery II, and Enerhen, as well as Isoko/Kwale, Otovwodo/Patani, Ughelli/Shell, Agbarho/Eku, Aladja, Imoniyame, and Beta Glass feeders. The prolonged blackout is expected to significantly disrupt businesses in Delta State that depend on the national grid for power.