The Nigerian Electricity Supply Industry (NESI) has said that generation companies (GENCOs) could not produce 3,269MW as a result of the shortage of gas for fueling the power plants.
In its October 8 performance report that it posted on its website on Monday, it noted that the power sector lost 371.7MW due to line constraint and also lost 479.4MW owing to a high-frequency constraint.
According to NESI, there was no challenge due to water management, but on the day under review, the total constraints led to a loss of about N1.978billion.
Following the losses, the Nigeria Electricity System Operator (SO) that would have sent out about 7,247MW were there on constraints, only sent out 3,335MW to the 11 distribution companies (DisCos).
The report said: "On October 8 2016, average power sent out was 3335MWh/hour (down by 164 MWh/h). The reported gas constraint was 3269MW. The reported line constraint was 371.7MW and the reported high-frequency constraint is 479.4MW according to TCN. The water management constraint was 0MW. The power sector lost an estimated N1,978, 000, 000 on October 8, 2016, due to constraints."
Meanwhile, the Nigeria Electricity System Operator (SO) of the Transmission Company of Nigeria (TCN) said that at 06:00 hours of October 10, it hit an energy generation of 3,805.10MW.
The power sector had last Thursday said that the three hydroelectric stations which include Kanji, Jebba and Shiroro produced 283MW, 415MW,380MW respectively, totally 1,119MW.
It added that Egbin generated 380MW, Sapele I 59MW, Delta 324MW, Geregu 134MW, Omotosho 168MW, Olorunsogo 153MW Geregu NIPP 123MW,Sapele NIPP 104MW, Olorunsogo NIPP 77MW, Omotosho 193MW, Odukpani NIPP 51MW, Okpai 339MW, Ibom 63MW, Omoku 33, Transamadi 14MW, Transamadi 113, Paras Energy 48MW, and Gbarain 95MW.
The Nation observed from the operational performance of the SO that contained this data that seven power plants did not produce power on the day under review.

Source: http://nigerianewstoday.com.ng/gas-constraint-causes-shortage-of-3269mw/