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🇳🇬 Nigeria /Energy & Infrastructure

Transmission Faults Cut Power Allocations to Lagos, Abuja and Other Areas

From The Punch · () English

Translated from English and summarized by DistantNews. Read the original for the full story.

At a glance

News Official statement Ongoing story
  • The Nigerian Independent System Operator said transmission-line outages, rather than insufficient generation, forced it to reduce allocations to DisCos serving Lagos, Abuja and northern areas.
  • The operator adjusted dispatch to keep the remaining grid within safe operating limits and prevent a wider disturbance.
  • Outages on several 330kV circuits reduced the electricity that could be transferred safely into the Lagos area.

Power allocations to parts of Nigeria fell after multiple transmission-line outages constrained the national grid, according to the Nigerian Independent System Operator.

The operator said the reductions affecting Distribution Companies serving Lagos, Abuja and the northern corridor did not result from a shortage of electricity generation. Instead, it adjusted generation dispatch and allocations because the remaining transmission network had to stay within safe operating limits.

The changes in allocations occurred due to multiple transmission line outages that affected available transmission capacity and configuration of the network at different times.

— Nigerian Independent System OperatorNISO explained why it reduced electricity allocations.

NISO said available generation alone could not guarantee supply to a particular location. Electricity must also be transferred through transmission infrastructure with enough capacity, and the network's configuration changes when lines are out of service.

Lagos was particularly affected by successive outages on the Olorunsogo-Ayede, Benin-Egbin and Benin-Omotosho 330kV lines. The Osogbo-Ikeja West circuit also remained out of service for an extended period. NISO said the combined loss of those circuits reduced the amount of power that could safely reach Lagos, prompting it to curtail allocations to Eko Electricity Distribution Company, Ikeja Electric and the Sakete international supply. The northern corridor also experienced transmission failures.

The availability of generation does not, by itself, guarantee that the available power can be delivered to a particular load centre.

— Nigerian Independent System OperatorThe operator distinguished electricity generation from transmission capacity.
About this summary

Originally published by The Punch in English. Translated, summarized, and contextualized automatically by DistantNews, with a note on how the source frames the story. Not individually reviewed before publishing. How this works.

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