Company Hits 5,801.84MW Peak as MD Hails 2025 as Landmark Year for National Grid
The Transmission Company of Nigeria (TCN) has disclosed that it recorded 131 cases of infrastructure vandalism across its transmission network in 2025, even as it achieved the highest electricity transmission level ever recorded in the country.
The Managing Director and Chief Executive Officer of TCN, Sule Abdulaziz, made this known in his end-of-year message to staff, partners, and stakeholders, describing 2025 as a “remarkable and historic year” for both the company and Nigeria’s power sector.
Despite persistent challenges, including vandalism, liquidity constraints, and operational pressures, Abdulaziz announced that TCN transmitted an all-time peak of 5,801.84 megawatts on March 4, 2025. He added that the company also delivered a record maximum daily energy of 128,370.75 megawatt-hours, the highest in the history of Nigeria’s national grid.
According to him, the achievement was the result of sustained investments in transmission infrastructure, rehabilitation of ageing assets, expansion of transformer capacity, and improved maintenance practices.
Reflecting on the year, Abdulaziz commended staff for their resilience and dedication in the face of mounting sector challenges.
“2025 presented its own unique difficulties, from evolving regulatory frameworks to persistent vandalism and liquidity issues,” he said. “Yet, it is through overcoming these challenges that the strength and commitment of our workforce became evident.”
He revealed that TCN’s wheeling capacity has now increased to 8,700 megawatts, positioning the company to better support Nigeria’s growing electricity demand.
Between January 2024 and November 2025, Abdulaziz said TCN commissioned 82 new power transformers, adding more than 8,500 megavolt-amperes to the national grid to improve reliability and capacity.
However, he expressed concern over the continued threat of vandalism, disclosing that 131 vandalism incidents were recorded across the transmission network between January and November 2025 alone.
He said the company is working closely with the Office of the National Security Adviser, security agencies, and community vigilante groups to curb the menace, while also intensifying public sensitisation and community engagement to protect critical power infrastructure.
Abdulaziz also highlighted key sector reforms achieved during the year, including the unbundling of TCN and the successful launch of the Nigerian Independent System Operator (NISO).
In addition, he disclosed that donor-funded power projects valued at over $1.16 billion made significant progress in 2025. These include the Abuja Feeding Scheme, which involves the construction of five new substations and a 330kV transmission line, aimed at strengthening supply to the nation’s capital and surrounding areas.
Some of the projects, he noted, have been completed, while others are ongoing as part of efforts to modernise the grid and expand transmission capacity.
The TCN boss described staff as the company’s “greatest asset” and expressed appreciation to President Bola Ahmed Tinubu, the Minister of Power, Adebayo Adelabu, security agencies, development partners, and other stakeholders for their continued support. He also paid tribute to staff members who lost their lives in the course of duty in 2025.
Looking ahead to 2026, Abdulaziz said TCN would intensify efforts to enhance grid capacity, stability, and efficiency, while deepening collaboration with NISO and other industry stakeholders.
“As we move into the new year, we must build on the gains of 2025 by accelerating project delivery, modernising transmission infrastructure, and strengthening stakeholder engagement,” he said.
Established to ensure reliable electricity transmission nationwide, TCN remains central to Nigeria’s power supply chain. The record-breaking transmission achieved in 2025 underscores growing grid stability and capacity, even as the company continues to battle challenges such as vandalism and infrastructure gaps.
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