The Nigerian Independent System Operator (NISO) has stepped up enforcement of free governor control compliance across the country’s generation fleet, introducing field inspections, conditional derogations with fixed expiry dates and a penalty framework aligned with Nigerian Electricity Regulatory Commission (NERC) directives.
Engineer Abdu Bello Mohammed, Managing Director and Chief Executive Officer of NISO, disclosed the measures while speaking at the 2026 hydro generation planning meeting in Niger State, as the Federal Government continues efforts to strengthen the national power supply chain.
Mohammed said the push on governor compliance is about converting stated plant flexibility into demonstrable, contractually reliable capability.
“I raise this not to single anyone out, but because it is the clearest illustration of what this meeting is really about: turning a station’s stated flexibility into a demonstrated, contractually reliable capability. Every hydro unit in your various plants has a governor-response profile that NISO can see. That visibility should inform how we plan together, not just how we enforce afterward,” he said.
He added that hydroelectric generation, depending on the technical characteristics of individual units and prevailing hydrological conditions, also supports reserve provision, voltage support and system restoration. As such, hydro generation planning is not simply an exercise in determining how many megawatts will be available at a given time; it is an integral component of national power-system planning and grid security management.
For NISO, the central question is not only how much energy hydro stations can generate, but how reliably they can respond to system needs.
Mohammed emphasised that hydropower occupies a strategic position in Nigeria’s electricity supply industry. Beyond the volume of energy contributed to the national grid, hydropower provides operational characteristics that are increasingly valuable to a system challenged by generation variability, changing demand patterns and transmission constraints.
“I want to be direct about one of those characteristics: frequency regulation. Governor response is no longer a theoretical attribute we describe in planning documents; it is a measured, monitored and, where necessary, enforced obligation,” he said.
The NISO boss, however, stressed that effective system operation cannot be achieved by the operator acting alone. He called for deeper collaboration among all players in the electricity value chain.
“We must recognise, however, that effective system operation cannot be achieved by NISO acting in isolation. It requires a high degree of co-ordination among generation companies (GenCos), Transmission Company of Nigeria (TCN), distribution companies (DisCos), water-resource authorities, regulators, market participants and other critical stakeholders,” Mohammed said.
The intensified compliance drive is part of broader reforms aimed at improving grid stability, reducing system collapses and ensuring that available generation capacity translates into more reliable power supply for consumers.