Power grid maintains uninterrupted stability for over 400 consecutive days – TCN

The Transmission Company of Nigeria (TCN) has announced that the Nigerian power grid recorded an unparalleled period of stability in the history of the power sector in the country.

In a statement issued by the General Manager Public Affairs, Ndidi Mbah, on Tuesday, the Nigeria power sector experienced a major milestone without any major disruptions or systems collapse for an impressive span of 400 consecutive days and counting.

TCN explained that this milestone signifies a remarkable advancement in the nation’s efforts at strengthening its power infrastructure and ensuring a reliable and dependable electricity supply to distribution load gentres for onward distribution to electricity customers nationwide.

It further explained that the stability in the power grid can be attributed to a combination of strategic measures and investments in the power system by the management of the TCN.

“Some of the key elements that have contributed to this remarkable accomplishment include Configuration and Enforcement of Free Governor Control, effective Under-frequency Relay Scheme among others.

“TCN constituted a three-person committee was formed to go round the country for the configuration and activation of Primary Reserve in coordination with
power stations and in line with the provisions in the Grid code.

“This committee devised a robust monitoring and enforcement mechanism for generating station compliance after activating the unit governor control. This innovative approach, known as Free Governor Mode of Operation (FGMO), automatically adjusts
generation in response to frequency changes, ensuring stability, reliability, and reduced transmission losses.

“Under Frequency Relay Scheme, counters the challenges posed by occasional generation shortfalls and resulting frequency declines, TN implemented a strategic deployment of under frequency relay scheme

Speaking on the measures taken to sustain power supply in the country, the power agency also revealed that it has continued to maintain effective collaborations with relevant stakeholders in the Nigerian Electricity Supply Industry (NES).

It also revealed that it successfully carried out several Infrastructure Upgrades / N-1 contingency transforming the grid.

“Collaboration between TN and stakeholders in the Nigerian Electricity Supply Industry (NES) has continued to yield joint initiatives such as Power Purchase Agreements, Service Level Agreements, Power Evacuation Agreements, and NESI situation room reports. Regular evaluations enhance real-time monitoring and adjustment, fostering a resilient power landscape.

“TN successfully carried out several Infrastructure Upgrades / N-1 contingency transforming the grid from a radial network to a loop system through massive
investment in construction and dualization of critical circuits, Comprehensive modernization of transmission infrastructure, including commissioning new transmission stations and installing power transformers, has reinforced grid resilience and operational flexibility.

“The Nigerian power grid’s achievement of over 400 days of uninterrupted stability showcases the nation’s commitment to advancing its power infrastructure.

“This success is a result of increased efficiency, technologies, dedicated personnel, strategic measures, and collaborative partnerships.

“This achievement reflects the potential for positive transformation within the energy sector. With unwavering determination, ongoing investments, and collective efforts, the nation is poised for a stronger and dependable power system.”

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