Following the total electricity grid collapse of January 15, seven power plants have been restarted, while three others are still down.
According to the daily operational report for the industry obtained by our correspondent in Abuja on Tuesday, three generation plants are experiencing limited supply of gas due to condensate evacuation challenges.
Industry data earlier made available to our correspondent on Monday had indicated that a total system collapse occurred on January 15, 2017, as the Ugwuaji/Makurdi 330kV line 1 (cct U1A) CB tripped at the Ugwuaji transmission station on distance protection 3-phases.
It was also gathered that poor generation, lack of units on spinning reserve/frequency response and lack of enough feeders on the under frequency relay scheme were responsible for the collapse.
But the latest report on Tuesday outlined the seven plants that were restarted following the collapse as Transcorp, Sapele I and II, Afam VI, Omotosho I and II, Olorunsogo I, Geregu I, and Okpai.
It stated, “The following plants had not restarted turbines as of 0600 on January 17, 2017, since outages due to the system collapse on 15th of January: Kainji 1G11 and 1G12, Alaoji GT2, and Sapele ST1.
“Condensate evacuation challenges are limiting gas supply to Geregu, Sapele and Olorunsogo plants.”
On Monday, media had reported that the shutdown of seven power plants across the country led to a total electricity load loss of 1,899.7 megawatts.
The report had noted that four plants of the National Integrated Power Projects were shut, while others remained non-functional for some days.
It was gathered that this occurred after a partial system collapse occurred on January 12, 2017, as the system frequency dropped by eight hertz on the same day.
“Partial collapse occurred on January 12, 2017. At 8:41hours, system frequency dropped from 51Hz to 43Hz. Lagos, Osogbo, Jebba, Kainji and Shiroro lost supply, while other areas survived. Total load loss was 1899.7MW,” the report had noted.
