The nation ’ s electricity generation plunged to 2 , 616. 7 megawatts on Tuesday , a day after heavy rainfall in Lagos damaged some power facilities and worsened supply in parts of the state .
Total power generation declined to 3 , 978 . 5 MW as of 6 . 00 am on Monday from 4 , 297 MW on Sunday, according to data from the Nigeria Electricity System Operator, an arm of the Transmission Company of Nigeria.
Six power plants , namely Alaoji NIPP , Olorunsogo NIPP and Ihovbor NIPP , Gbarain NIPP , AES IPP and ASCO IPP , were idle as of 6 . 00 am on Tuesday.
A total generation capacity of 2 , 443. 2 MW was said to be unavailable as of 6 . 00 am on Tuesday as a result of line constraints ( 544MW ) , low load demand by electricity distribution companies ( 1 , 749. 2 MW) and water management ( 150MW ) .
The system operator put the nation ’ s installed generation capacity at 12 , 910. 40 MW ; available capacity at 7 , 652 . 60 MW; transmission wheeling capacity at 8 , 100MW ; and the peak generation ever attained at 5 , 375MW .
The nation generates most of its electricity from gas – fired power plants , while output from hydropower plants makes up about 30 per cent of the total .
The TCN , which manages the national grid , is still fully owned and operated by the government .
The grid has continued to suffer system collapse over the years amid a lack of spinning reserve that is meant to forestall such occurrences .
Spinning reserve is the generation capacity that is online but unloaded and that can respond within 10 minutes to compensate for generation or transmission outages .
Out of the five power stations meant to provide spinning reserves , none has any actual reserve , with the contracted reserve put at 295MW .
The power stations are Egbin , Delta , Olorunsogo NIPP , Geregu NIPP and Omotosho NIPP.
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