The national grid crashed to zero megawatts (MW) at 10:51am on Monday, causing a nationwide outage.
The development occurred days after
electricity consumers said they had enjoyed improved supply.
The national electricity grid as of 10am on
Monday had 3,712MW generated from 21 Generation Companies (GenCos) before it
dropped to 0MW one hour after.
According to the information from the
System Operations, only a section of the Transmission Company of Nigeria (TCN),
Afam IV, was on the grid but with zero supply as of 12noon.
As of Sunday, the highest generation was
4,100MW while the lowest was 3,652MW with the frequency hovering between 49.04
Hertz (Hz) and 50.34Hz.
Since July 1 this year, consumers said power supply had increased in their various areas.
For instance, the Abuja Electricity
Distribution Company (AEDC) recently confirmed increment in its daily
allocation to over 500MW from the actual 300MW it had distributed before then.
Though the national grid had not cross
5,000MW, Daily Trust observed that level of load rejection especially around
the DisCos’ networks had dropped significantly with some customers entitled to
five-hour supply, recording over 12 hours daily.
The Nigerian Electricity Regulatory Commission (NERC) had attributed the improvement in power supply nationwide to the partial activation of contracts that seeks to hold sector operators liable for deliberate incompetence.
The national grid collapsed twice, in July
and in August but was quickly restored and power supply improvement was
sustained before the latest system collapse on Monday.
According to records, this is the seventh
system collapse this year, much more than the three recorded last year.
Although TCN, the national grid manager was
yet to establish the cause of the crash, some insiders said it could be as a
result of a maintenance of the 330 kilovolts Jos – Bauchi transmission line
maintenance slated for Monday.
Some DisCos including Kaduna Electric,
Enugu, and Kano, had already communicated the nationwide outage to their
customers noting that efforts were ongoing to restore supply.