TCN Declares Force Majeure After Transmission Tower Collapses on Kainji–Birnin Kebbi Line
By Iroyin Yoruba Television News Desk
The Transmission Company of Nigeria has declared a Force Majeure Event on the 330kV Kainji–Birnin Kebbi transmission line following the collapse of a transmission tower along one of the important electricity corridors serving north-western Nigeria.
The affected tower, identified as Tower T367, collapsed after the transmission line tripped twice during the night of Monday, September 7, 2026.
According to the Transmission Company of Nigeria, the line first tripped at approximately 10:44 p.m. on September 7. A trial attempt was subsequently made to reclose the line at about 11:07 p.m., but the line tripped again.
The second trip prompted technical personnel from the Birnin Kebbi Sub-Region to begin a fault-finding patrol along the transmission corridor.
The team eventually discovered on September 8 that Tower T367 had collapsed.
The company's preliminary findings indicate that heavy winds and rainstorms experienced in the area caused the collapse.
The incident has affected bulk electricity transmission through the 330kV Kainji–Birnin Kebbi corridor, prompting the company to declare Force Majeure on the affected transmission line, identified as 2KNJ–BRK1.
TCN said it has already begun arrangements to mobilise the personnel, equipment and other resources needed at the affected location to rehabilitate the collapsed tower and restore the transmission line to service.
While the damaged line remains unavailable, the company said it has successfully maintained electricity transmission to Sokoto through an alternative transmission route.
The alternative arrangement allows the Talata Mafara–Sokoto corridor to receive electricity from the Kaduna-Mando axis through the 132kV Zaria–Funtua–Gusau transmission line.
How the Incident Started
The incident began late on Monday night when the 330kV Kainji–Birnin Kebbi transmission line tripped.
A transmission line trip is an automatic interruption of electricity flow through a section of the network, usually triggered when protection equipment detects an abnormal condition.
Such protection systems are essential to the operation of a high-voltage electricity network.
When a fault occurs, protective equipment is designed to disconnect the affected section in order to prevent damage to electrical equipment and reduce the possibility of a wider system disturbance.
In this case, the first trip occurred at approximately 10:44 p.m.
Technical personnel subsequently attempted a trial reclosure at 11:07 p.m.
The attempt failed because the line tripped again.
The second trip suggested that the problem was not simply a temporary disturbance that could be resolved through switching operations.
TCN therefore dispatched linesmen from its Birnin Kebbi Sub-Region to patrol the transmission corridor and identify the physical cause of the problem.
Their inspection eventually led them to Tower T367.
The tower had collapsed.
That discovery transformed what initially appeared to be a transmission fault into a major infrastructure problem requiring physical rehabilitation.
Heavy Winds and Rainstorms Blamed
TCN's preliminary assessment points to severe weather as the cause of the tower collapse.
The company said the area experienced heavy winds and rainstorms.
Transmission towers are exposed structures that must withstand wind pressure, rainfall and other environmental conditions over many years.
A major storm can place substantial forces on the steel structure, conductors and foundations.
The immediate assessment by TCN does not mean that every possible technical factor has already been ruled out.
Further engineering examination may be necessary to establish the complete condition of the tower, its foundation and associated equipment.
However, the company's preliminary finding is that the severe weather was responsible for the collapse.
The incident therefore falls within the circumstances that TCN has treated as a natural disaster for purposes of declaring Force Majeure.
What Is Force Majeure?
The declaration of Force Majeure does not mean that TCN has abandoned the transmission line or stopped working on the problem.
Force Majeure is a contractual concept generally used when an extraordinary event outside the reasonable control of a party prevents or seriously affects the fulfilment of certain obligations.
Natural disasters and severe weather events can fall within such circumstances, depending on the terms of the relevant agreement.
In this case, TCN linked the declaration directly to the collapse of Tower T367 and the natural disaster that caused the damage.
The declaration recognises that the physical destruction of the transmission infrastructure has affected the company's ability to provide normal transmission service through the affected corridor.
TCN has nevertheless said it is already preparing for rehabilitation.
The company is therefore simultaneously acknowledging the extraordinary event and taking steps to restore the damaged infrastructure.
Why Tower T367 Matters
A transmission tower may appear to be a simple steel structure, but each tower forms part of a much larger electricity network.
Transmission towers support high-voltage conductors that carry large amounts of electricity over considerable distances.
The Kainji–Birnin Kebbi corridor is part of the network used to move bulk electricity towards areas in the north-west.
When one major tower collapses, the electrical circuit supported by that infrastructure can no longer operate normally.
That can have consequences beyond the immediate location of the damaged tower.
Electricity transmission is based on interconnected infrastructure.
Power generated at one location must travel through transmission lines and substations before eventually reaching distribution companies and consumers.
A failure at any significant point in that chain can reduce the ability of the network to move electricity.
This is why the collapse of Tower T367 has become a national electricity-sector issue rather than simply a local engineering problem.
TCN Moves to Protect Electricity Supply
One of the most important developments following the collapse is the activation of an alternative transmission arrangement.
TCN said it has successfully maintained electricity transmission to Sokoto by enabling the Talata Mafara–Sokoto corridor to receive supply through another transmission path.
The alternative route comes from the Kaduna-Mando axis through the 132kV Zaria–Funtua–Gusau transmission line.
This arrangement is important because it reduces the immediate risk of a complete interruption of bulk electricity transmission to Sokoto.
It also demonstrates the importance of having alternative routes within the national grid.
Without alternative infrastructure, the collapse of a major transmission tower could potentially leave an entire corridor more severely isolated.
The availability of another route gives the system some degree of flexibility while the damaged line is being repaired.
Alternative Supply Does Not Mean the Problem Is Solved
Although the alternative route provides important support, it should not be interpreted as meaning that the collapse of Tower T367 has no consequences.
Transmission systems have different voltage levels and different capacities.
The 330kV line and the alternative 132kV route do not necessarily provide identical transmission capabilities.
The alternative arrangement is therefore a temporary measure that helps maintain electricity movement while TCN works on the damaged infrastructure.
The longer the primary line remains out of service, the more important it becomes to monitor the alternative route and ensure that it can safely handle the electricity being transmitted through it.
TCN's decision to immediately begin mobilisation of personnel and equipment is therefore significant.
The Rehabilitation Process
Rehabilitating a collapsed transmission tower is a technically demanding operation.
The first stage is usually a detailed assessment of the site.
Engineers need to determine the condition of the collapsed tower and its components.
They also need to examine the foundation.
If the foundation has been damaged, additional civil engineering work may be required before a new tower can be erected.
Replacement steel components must then be transported to the location.
Depending on the circumstances, workers may need to dismantle damaged components and clear the site before reconstruction.
The new tower must be assembled according to engineering specifications.
Conductors, insulators and other electrical components then need to be properly installed.
Before the line is returned to service, technical personnel must carry out appropriate inspections and tests.
This explains why restoring a transmission tower can take longer than simply replacing a damaged piece of equipment.
Safety Will Be Critical
The rehabilitation work will involve personnel working around high-voltage infrastructure.
Safety must therefore remain a priority.
Transmission lines operate at voltages capable of causing fatal injury.
Workers must follow isolation, grounding and other safety procedures before undertaking certain tasks.
Heavy equipment may also be required to transport and erect the tower.
The surrounding area must be secured to protect workers and members of the public.
Although consumers naturally want electricity restored as quickly as possible, rushing technical work without appropriate safety measures could create additional risks.
TCN therefore has to balance speed with engineering and occupational safety requirements.
Possible Impact on Electricity Consumers
The collapse could affect electricity consumers in parts of the north-west, although the exact impact will depend on the performance of the alternative transmission arrangement and the wider electricity network.
TCN has not announced a blanket blackout affecting all consumers in Kebbi or Sokoto.
Instead, the company has said it has maintained transmission to Sokoto through the alternative route.
This distinction is important.
A transmission disruption does not necessarily mean that every customer connected to the surrounding distribution network will lose electricity.
The final level of supply available to individual consumers depends on generation, transmission and distribution conditions.
Distribution companies also operate local networks involving substations, transformers and feeders.
A customer can therefore experience an outage caused by a local distribution fault even when the transmission system is functioning.
Similarly, a transmission constraint can reduce the amount of electricity available to distribution companies even when their own equipment is operating normally.
Why Businesses Are Concerned
Electricity reliability is particularly important for businesses.
Manufacturers, agricultural processors, shops, restaurants, workshops and service providers all depend on electricity to operate.
Where grid supply becomes unreliable, many businesses resort to generators, inverters, batteries or solar systems.
Those alternatives can be expensive.
Fuel costs add to production expenses.
Maintenance costs also increase.
For manufacturers, unreliable electricity can affect production schedules.
For food businesses, power interruptions can create problems with refrigeration.
For agricultural processors, electricity is needed for milling, pumping, drying and other operations.
For small businesses, even a few hours without electricity can translate into lost income.
A transmission problem can therefore have economic consequences even when it occurs far away from a major commercial centre.
Importance to the North-West
The north-western region contains important agricultural and commercial communities.
Kebbi and Sokoto in particular have significant agricultural activity.
Electricity is increasingly important to modern agriculture and agricultural processing.
Farmers and processors require power for irrigation systems, milling equipment, cold storage and other machinery.
Reliable electricity can also support small-scale manufacturing.
A stronger electricity network can therefore contribute to economic development in the region.
Conversely, repeated disruptions can increase operating costs and make businesses more dependent on alternative energy sources.
Transmission and Nigeria's Economic Development
Nigeria's economic development plans depend heavily on reliable infrastructure.
Electricity is one of the most important pieces of that infrastructure.
Manufacturing requires power.
Technology companies require data centres and communications infrastructure.
Hospitals require electricity for medical equipment.
Schools require power for digital learning.
Agriculture increasingly depends on electrical machinery.
Small businesses require power for everyday operations.
The transmission network is the bridge connecting generating capacity to these consumers.
That means investment in transmission infrastructure should be treated as an economic development priority rather than merely a technical issue.
Generation Alone Is Not Enough
Nigeria's electricity debate often focuses heavily on generation.
Discussions frequently centre on power plants, gas supply and installed capacity.
But generation is only one part of the electricity chain.
A power plant can generate electricity without that electricity necessarily reaching consumers.
Transmission lines must carry the power over long distances.
Substations must transform and direct it.
Distribution networks must then deliver it to homes and businesses.
If the transmission network has a major failure, available generation may not be fully utilised in affected areas.
The collapse of Tower T367 is another reminder that Nigeria needs investment across the entire electricity value chain.
The Importance of Grid Redundancy
A resilient electricity network needs alternative routes.
If a single line is the only route into an area, a fault on that line can cause severe disruption.
Where alternative transmission paths exist, electricity can potentially be redirected.
The current situation demonstrates the value of such redundancy.
TCN has been able to maintain electricity transmission to Sokoto through the alternative route involving Zaria, Funtua, Gusau and Talata Mafara.
That does not eliminate the need to repair the damaged 330kV line.
Instead, it provides a temporary safety net.
The long-term goal should be a transmission network with sufficient capacity and redundancy to withstand individual infrastructure failures without major disruption.
Severe Weather and Infrastructure
The incident also raises broader questions about infrastructure resilience.
Nigeria experiences significant rainfall and thunderstorms in many regions.
Strong winds can damage roofs, trees, power infrastructure and other structures.
Transmission towers are particularly exposed because they are located in open areas and are designed to carry long stretches of electrical conductors.
Engineering standards already take weather conditions into consideration.
However, infrastructure operators must continuously evaluate whether existing structures remain capable of handling changing environmental conditions.
Regular inspection and maintenance can help identify problems before they become emergencies.
Importance of Routine Inspections
Transmission corridors cover long distances.
Routine inspection is therefore a major part of maintaining the network.
Engineers and technical teams need to check towers, foundations, conductors, insulators and related equipment.
They may also need to inspect vegetation and erosion around tower foundations.
A tower can remain standing while gradually developing problems.
Corrosion can weaken metal.
Soil movement can affect foundations.
Flooding can create erosion.
Storms can damage components.
Early detection allows repairs to be carried out before a major failure occurs.
The collapse of Tower T367 may therefore lead to renewed inspections of other towers along the same corridor.
Weather Monitoring Could Improve Preparedness
Another lesson concerns weather monitoring.
Severe weather forecasts can help infrastructure operators prepare response teams.
When major storms are expected, technical personnel can be placed on standby.
Equipment can be moved closer to vulnerable areas.
Inspection teams can be deployed quickly after the storm.
This does not guarantee that infrastructure will not fail.
However, it can reduce the time required to locate and respond to faults.
Rapid response can be particularly important when an outage affects a major transmission corridor.
The Role of TCN Technical Workers
The response by TCN linesmen demonstrates the importance of technical personnel within the electricity sector.
After the second trip, the Birnin Kebbi Sub-Region team did not simply wait for the problem to resolve itself.
They began a fault-finding patrol.
Transmission lines can stretch across difficult terrain, meaning technical teams may have to travel significant distances to locate faults.
They may have to inspect multiple towers and sections of conductor before identifying the cause of an outage.
In this case, the team located the collapsed Tower T367.
That discovery allowed TCN to move from fault identification to rehabilitation planning.
Why the Initial Trip Was Significant
The first line trip at 10:44 p.m. was the first visible indication that something had gone wrong.
The second trip after the attempted reclosure provided additional evidence that the problem remained.
Trial reclosure is commonly used to determine whether a fault has cleared.
If the line remains stable after reclosure, the system can return to normal operation.
But if the line trips again, technical investigation becomes necessary.
In this case, the second trip led to the patrol that eventually identified the collapsed tower.
The Electricity Chain
To understand the potential consequences, it is useful to consider how electricity reaches consumers.
First, electricity is generated.
It may come from gas-fired power plants, hydroelectric facilities or other sources.
The electricity then enters the transmission network.
High-voltage transmission lines move bulk electricity over long distances.
Substations regulate and transform the electricity.
Distribution companies receive the power and send it through lower-voltage networks.
Transformers then deliver electricity to homes, offices, shops and factories.
A transmission tower collapse can therefore interrupt the process before electricity reaches the distribution stage.
That is why the rehabilitation of Tower T367 is important.
What the Force Majeure Declaration Does Not Mean
The public should also understand what the declaration does not mean.
It does not mean that the entire national grid has collapsed.
It does not mean that TCN has stopped operating.
It does not mean that electricity supply to Sokoto has been completely cut.
It does not mean that the company is refusing to repair the tower.
Instead, TCN has specifically declared Force Majeure on the affected 330kV Kainji–Birnin Kebbi transmission line because an extraordinary weather-related event has damaged the infrastructure.
At the same time, the company is mobilising resources for rehabilitation.
Public Expectations
Consumers will likely want to know when normal transmission will resume.
TCN has not announced a specific restoration date.
The company has said it is working to restore the line within the shortest possible time.
The duration of the repair will depend on several factors.
These include the condition of the site, availability of replacement tower components, equipment mobilisation, foundation requirements, weather conditions and the time needed for testing.
It would therefore be premature to give consumers an exact restoration date that has not been announced.
What is clear is that the company has begun the response process.
What Happens Next
The immediate next step is mobilisation.
TCN must move the necessary personnel, equipment and materials to the affected location.
Technical teams will then assess the damage in greater detail.
The collapsed tower will need to be rehabilitated or replaced.
Associated electrical components will also require inspection.
The line must then undergo testing before being returned to normal service.
During this period, the alternative transmission route will remain important.
The company will also need to monitor the wider grid to ensure that the temporary arrangement remains stable.
Wider Implications for the National Grid
The incident provides another reminder that Nigeria's electricity infrastructure needs continuous investment.
Transmission infrastructure must not only be expanded but also maintained.
Existing towers must be inspected.
Older equipment must be replaced where necessary.
Alternative routes must be strengthened.
Substations must be upgraded.
New generation capacity must be connected to the grid.
Without this combination of investments, improvements in one part of the electricity sector may not translate into reliable electricity for consumers.
The Cost of Electricity Instability
Power interruptions have a financial cost.
Businesses that depend on generators spend money on fuel.
Factories may lose production hours.
Perishable products can spoil when refrigeration fails.
Workers may lose productive time.
Households may spend money charging devices or purchasing alternative power equipment.
For a small business operating on a narrow profit margin, repeated electricity disruptions can make the difference between profit and loss.
This is why the stability of transmission infrastructure matters to ordinary Nigerians.
Why the Incident Deserves Attention
The collapse of one transmission tower may appear to be a technical issue, but it touches several important areas of national life.
It affects electricity.
Electricity affects businesses.
Businesses affect employment.
Employment affects household income.
Electricity also affects healthcare, education, communications, agriculture and public services.
A strong transmission network is therefore an essential foundation for economic activity.
The incident involving Tower T367 is consequently a reminder of how interconnected Nigeria's infrastructure systems are.
TCN's Response
TCN has expressed regret over the inconvenience the development may cause electricity consumers and other affected stakeholders.
The company has also assured the public that efforts are being made to restore normal bulk power transmission.
The use of an alternative route while the damaged tower is being rehabilitated provides some immediate relief.
The success of the response will ultimately be measured by how quickly and safely the 330kV corridor can return to service.
Final Outlook
The collapse of Tower T367 has temporarily disrupted the 330kV Kainji–Birnin Kebbi transmission corridor and forced TCN to declare Force Majeure on the affected line.
The incident followed two trips of the transmission line on the night of September 7.
TCN's technical team subsequently located the collapsed tower during a fault-finding patrol on September 8.
The company's preliminary assessment points to heavy winds and rainstorms as the cause.
TCN has begun preparations to mobilise personnel, equipment and other resources for the rehabilitation of the damaged infrastructure.
In the meantime, the company has maintained electricity transmission to Sokoto through an alternative route involving the Kaduna-Mando axis and the 132kV Zaria–Funtua–Gusau line.
The alternative arrangement is important because it provides continuity while repairs are being organised.
Nevertheless, it cannot remove the need to restore the main 330kV corridor.
For consumers and businesses in the region, the most important question now is how quickly TCN can rehabilitate Tower T367 and return the transmission line to normal operation.
For the wider electricity sector, the incident highlights the importance of resilient transmission infrastructure, regular maintenance, alternative routes and preparedness for extreme weather.
Nigeria's electricity challenge cannot be solved by generation alone.
The country needs an integrated system in which electricity can be generated, transmitted and distributed reliably.
Transmission towers may stand quietly across the Nigerian landscape, but they are critical pieces of infrastructure connecting power generation to homes, businesses, industries, hospitals and public institutions.
When one collapses, the consequences can travel far beyond the immediate location.
The current response therefore requires not only urgent restoration but also careful technical assessment to ensure that the repaired infrastructure is capable of providing safe and reliable service.
As TCN mobilises for the rehabilitation of Tower T367, consumers will be watching closely for further updates on the restoration of the Kainji–Birnin Kebbi transmission line.
Iroyin Yoruba Television will continue to follow developments concerning the damaged transmission corridor and report any confirmed update on restoration, electricity supply and the rehabilitation of the collapsed tower.