The Nigerian Independent System Operator (NISO) has attributed the current poor electricity supply across Nigeria, including the South East, to inadequate gas supply to thermal power generating stations and reduced output from hydroelectric power stations.
NISO, in a statement issued on Thursday, November 5, 2026, explained that limited gas availability had constrained the capacity of affected thermal power plants to generate electricity at their available levels, while reduced water inflows into reservoirs had also affected the output of hydroelectric stations.
The development has resulted in a decline in electricity generation on the national grid, reducing the volume of power allocated to Distribution Companies (DisCos) for onward supply to consumers.
According to NISO, the shortfall in available generation has translated into fewer hours of electricity supply and increased load shedding across distribution networks, with the level of impact varying among DisCos depending on available generation and their respective allocations.
The system operator acknowledged the impact of the current electricity generation shortfall on consumers nationwide, expressing appreciation for the concerns raised by members of the public and other stakeholders.
NISO further disclosed that it was working towards diversifying the country’s energy mix to strengthen security of electricity supply, while assuring Nigerians of its commitment to maintaining grid stability, optimising available generation and ensuring the secure, reliable and efficient operation of the national grid.
