10 Power Plants Shutdown, 1,041MW Lost

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Nigeria’s electricity generation decreased over 1,000 megawatts as four power plants were down on Saturday, bringing the total number of plants not generating electricity at the moment to 10.
Data obtained from the industry on Sunday shows that the nation recorded a total system collapse on Friday, September 16, 2016, the 17th time this year.
The total electricity generation stood at 2,555.7MW as of 6am on Saturday, down from 3,596.2MW the previous day, worsening the outage being experienced by households and businesses across Nigeria.
Egbin power station hit a record low of 246MW on Saturday from 425MW on Friday, while output from the Shiroro Power Station in Niger State, one of the nation’s hydropower plants, hit a high of 600MW.
Olorunsogo I and Olorunsogo II in Ogun State; Omotosho II in Ondo State; and Ihovbor located in Edo State, with installed capacities of 294MW, 500MW, 500MW and 225MW respectively were shut down after the collapse.
Olorunsogo II and Omotosho II, which were built under the National Integrated Power Project, had on Friday generated 171MW and 83.5MW, while Olorunsogo I and Ihovbor produced 148.1MW and 165.6MW, respectively.
The units GT1 and 3 of Olorunsogo II were said to be untied after the system collapse of September 16; while GT2 and ST2 were out due to gas constraints; GT4 out due to water leakage on the generator cooler; and ST1 out on maintenance.
Omotosho II’s units GT2, GT3 and GT4 were said to be out due to gas constraints, while the GT1 was not yet tied after the system collapse.
Five of Omotosho I’s units, namely GT1, 3, 5, 7 and 8, were not yet tied after the system collapse; GT2 and 4 out due to gas constraints, and GT6 out on vibration trouble.
Ihovbor’s units GT1 and 3 were not yet tied after the system collapse; GT2 shut down due to oil leakage from the auxiliary compartment, and GT4 out due to unit transformer problem.

The system collapse also affected the Jebba Hydro Power Station as two of its units, 2G4 and 5, were said to be still untied as of Saturday, with its output falling to 277MW from 408MW on Friday.
Units GT2, 5, 7 and 8 of Omotosho I and GT2 of Alaoji II in Abia State are also not yet tied.
Other plants that did not generate any megawatts of electricity on Saturday were Sapele I, Afam IV&V, Afam VI, AES, ASCO and Rivers IPP.
The national grid has recorded 22 collapses this year – 17 total and five partial.
The nation generates most of its electricity from gas-fired plants, while output from hydropower plants makes up about 30 per cent of total generation.

Punch

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