Electricity generation in the country plunged to 2,616.7MW on Tuesday after heavy rainfall in Lagos damaged some power facilities rendering six power plants idle. Total power generation declined to 3,978.5MW as of 6.00am on Monday from 4,297MW on Sunday, according to data from the Nigeria Electricity System Operator, an arm of the Transmission Company of Nigeria.
The Six power plants that were affected are: Alaoji NIPP, Olorunsogo NIPP and Ihovbor NIPP, Gbarain NIPP, AES IPP and ASCO IPP. A total generation capacity of 2,443.2MW was said to be unavailable as of 6.00am on Tuesday as a result of line constraints (544MW), low load demand by electricity distribution companies (1,749.2MW) and water management (150MW). The system operator put the nation’s installed generation capacity at 12,910.40MW; available capacity at 7,652.60MW; transmission wheeling capacity at 8,100MW; and the peak generation ever attained at 5,375MW.
The national grid which is managed by the government owned TCN 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 generating capacity that is online but unloaded and is available to the system operator within a short interval of time to meet demand in case a generator goes down or there is another disruption to the supply. Out of the five power stations meant to provide spinning reserves, none has any actual reserve, with the contracted reserve put at 295MW. These power stations are Egbin, Delta, Olorunsogo NIPP, Geregu NIPP and Omotosho NIPP.