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.

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


ISO Newsletter

SEP 05
Independent System Operator publishes newsletters on a regular basis to give readers insight and information on the ISO's operations

View Grid Performance

System Performance

01/12/2016
Highest Frequency 51.82 Hz
Lowest Frequency 48.96 Hz
Peak Generation 3,522.10 MW
Lowest Generation 2,683.30 MW
Total Energy Sent Out 75,692.72 MWH

Announcements

 

Top News

NOV 28
HR Introduces TQM Principles To Boost Service Delivery

The Human Resource, HR, practitioners in ISO have resolved to operationalize Total Quality Management, TQM, principles in all their operations so as to take ISO to be the next positive level in service delivery...

NOV 05
Electricity Market Operator Threatens To Escrow Accounts Of Distribution Companies

The electricity distribution companies in Nigeria, DISCOs, have been called out by the Nigerian Electricity Market Operator to improve their monthly remittances to the market or have their accounts escrowed.

OCT 17
TCN Enlightens Visitors At The Power Nigeria Exhibition

Transmission Company of Nigeria, TCN, participated actively in the recently concluded Power Nigeria Conference and Exhibition which took place at the Eko Hotels, Lagos Island, Lagos State.

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