The Nigerian Impartial System Operator (NISO) on Tuesday mentioned the nationwide grid skilled vital era shortfalls on account of industrial motion by the Petroleum and Natural Gas Senior Staff Association of Nigeria (PENGASSAN).
NISO in a public discover by its administration on Tuesday morning mentioned the disruptions triggered widespread fuel shortages, impacting energy era.
The system operator famous that out there era dropped from over 4,300 MW to about 3,200 MW at its lowest level on account of fuel provide disruptions.
“The Nigerian Impartial System Operator (NISO) needs to inform the general public of latest main era shortfalls on the Nationwide Grid, attributable to industrial actions of the Petroleum and Pure Gasoline Senior Workers Affiliation of Nigeria (PENGASSAN) throughout the fuel provide chain.
“These disruptions triggered widespread fuel shortages, decreasing out there era from over 4,300 MW within the early hours of Sunday, twenty eighth September 2025, to about 3,200 MW on the lowest level,” the assertion mentioned.
NISO interventions
In response, NISO mentioned it promptly deployed contingency measures to protect the soundness, safety, and reliability of the nationwide grid, together with hydropower optimisation, era dispatch, load balancing, voltage and frequency help, and demand-side administration.
NISO mentioned it strategically ramp-ups from main hydro stations, contributing over 400 MW of further output to cushion the shortfall from gas-fired vegetation.
The system operator mentioned it made real-time load changes to match out there era with system demand, whereas stopping a system frequency collapse.
It added that it repeatedly deployed reactive energy compensation and reserve monitoring to safeguard system integrity.
“Selective load shedding, utilized as a final resort, to avert a system-wide collapse and guarantee honest energy distribution.
“These well timed actions enabled the NISO NCC to minimise the affect of the labour-induced fuel shortages, maintain operational safety, and keep provide to essential masses, thereby averting a nationwide blackout,” it mentioned.
The system operator reaffirmed its dedication to proactive grid administration, operational excellence, and the appliance of best-in-class practices to ensure a safe and dependable electrical energy provide for the nation.
NISO had on Sunday raised issues in regards to the potential affect of the dispute between PENGASSAN and Dangote Refinery on the nation’s energy sector.
On the time, it mentioned the nationwide grid depends closely on gas-fired era, and any sustained disruption in fuel provide might constrain era capability, have an effect on system operations, and undermine the soundness and reliability of electrical energy provide throughout the nation.
NISO is answerable for electrical energy system operations, managing load allocation from era corporations to distribution corporations and eligible clients.
Dangote vs PENGASSAN disaster
PREMIUM TIMES studies that PENGASSAN had earlier requested its members to disrupt actions on the refinery by blocking fuel provide to it.
The affiliation mentioned its resolution was in response to the choice by the refinery’s administration to sack some employees who’re members of the union. It additionally accused Dangote refinery of spreading misinformation to justify its actions.
The union additionally directed its members nationwide to withdraw their providers in protest in opposition to the alleged sack of Nigerian employees on the refinery from midnight on 28 September. It accused the administration of the refinery of anti-labour practices and discrimination in opposition to native staff, prompting the federal authorities’s intervention.
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In a swift response, Dangote refinery described the order as unlawful and cautioned PENGASSAN to obey Nigerian legal guidelines in its operations, noting that PENGASSAN has no authorized proper to disrupt or intervene with the refinery’s contracts with third-party distributors for fuel and crude oil provide.
The Dangote Refinery referred to as on the federal authorities and its safety companies to intervene and name PENGASSAN to order, urging that PENGASSAN’s actions should not solely lawless but in addition have the potential to inflict vital hurt on the Nigerian financial system and residents.
On Saturday, the Home of Representatives Committee on Petroleum Assets (Downstream) referred to as on PENGASSAN to droop its directive to chop off fuel and crude oil provide to the Dangote refinery.
On Sunday, the federal authorities appealed to PENGASSAN to droop its deliberate nationwide strike over its dispute with the Dangote Refinery.
In an enchantment assertion, the Minister of Labour and Employment, Muhammad Dingyadi, mentioned the ministry had already initiated strikes to reconcile the events to forestall the disaster from escalating.
This newspaper had earlier reported that PENGASSAN on Monday morning shut down the foremost entry factors of the Nigerian Nationwide Petroleum Firm Restricted (NNPC Ltd), Nigerian Midstream and Downstream Petroleum Regulatory Authority (NMDPRA), and the Nigerian Upstream Petroleum Regulatory Fee (NUPRC).
On the NMDPRA Headquarters gate positioned on the federal secretariat, this newspaper noticed a banner with an inscription ‘Dangote Should Obey’, ‘Dangote is Not larger than the nation’, and ‘Dangote the Chief of lawless officer.’
Earlier, the Nationwide Industrial Court docket, Abuja, issued an interim order stopping PENGASSAN from persevering with with its nationwide industrial motion in opposition to the Dangote Petroleum Refinery and Petrochemicals.
The courtroom additionally restrained PENGASSAN from reducing crude and fuel provide to Dangote Refinery.
PREMIUM TIMES reported that the reconciliation assembly facilitated by the Nigerian authorities between Dangote refinery and PENGASSAN to resolve their ongoing dispute resulted in impasse on Monday night time.
