According to the latest industry data on sector reforms/activities, four plants belonging to the National Integrated Power Projects are shut, while others have remained non-functional for some days.
The report, which was made available to Punch correspondent in Abuja on Sunday, indicated that a partial system collapse occurred on January 12 this year, adding that the system frequency dropped by eight hertz on the same day.
The power plants are:
Olorunsogo I (GT2)
The report further stated that on January 13, the average power sent out was 2,944MW-hour/hour, up by 165MWh/h.
It stated that the gas constraints accounted for 2,680MW, while grid and water management constraints were both zero megawatt.