About SO

System Operation (SO) being a semi-autonomous sector under the Transmission Company of Nigeria (TCN) is responsible for operating the transmission system in a safe and reliable manner. The TCN network spreads to all parts of the country and across the border to several neighbouring countries, and Nigeria is a net exporter of power.
The transmission system in Nigeria comprises 330 kV and 132 kV circuits and substations. The thermal generation is located in the south of the country, generally near to the sources of gas, while the hydro generation is located further north at Jebba, Kainji and Shiroro. Distribution is split into 11 zones and the distribution networks comprise 33 kV, 11 kV and low voltage circuits. System nominal frequency is 50 Hz.

Our Connectivity

The transmission system in Nigeria comprises 330 kV and 132 kV circuits and substations.

Major Goals of a Smart Grid

* Optimize Efficiency * Monitor Problems to Reduce Outages
* Integrate Renewable Distributed Power Generation * Reduce Peak Power Demands

Core Functions

  • Monitoring system parameters while identifying the requirements for maintaining system reliability and stability
  • Maintaining and enhancing system reliability, stability and security
  • Ensure a stable frequency within the operational limits of 50Hz± - 0.4% with guaranteed quality voltage at all levels and uninterruptible power supply with minimal loss.
  • Conduct system studies, fault analysis, load flow analysis and planning of the power system (real time and future)

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Reports

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ISO Newsletter

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Independent System Operator publishes newsletters on a regular basis to give readers insight and information on ISO's operations

View Grid Performance

System Operator Notices

TCN is NDPR Compliant!

System Performance

16/03/2024
Highest Frequency 51.08 Hz
Lowest Frequency 49.00 Hz
Peak Generation 4,551.20 MW
Lowest Generation 4,081.02 MW
Total Energy Generated 105,853.67 MWH
Total Energy Sent Out 104,379.04 MWH

Top News

MAY 22
TCN ORGANISES TRAINING ON NSONG WEB PORTAL USAGE

TCN recently organised a training on NSONG web portal at the TCN National Control Centre (NCC)

MAR 09
TCN INAUGURATES COMMITTEES TO REVIEW ITS 20-YEAR LEAST COST EXPANSION MASTER PLAN

Generation and Distribution Steering Committees to review the report of the TEP

MAR 08
ELECTRICITY STAKEHOLDERS REVIEW METERING CODE

In line with the extant law and provisions of Nigerian Electricity Regulatory Commission (NERC), the

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