Power generation, as at 2pm on Sunday, dipped to 916 megawatts with only two of about 24 power plants in operation.
One hour earlier, 17 power plants produced 3,787.60 megawatts of electricity before the sudden plummeting.
The two power plants in operation were Egbin (Steam), which generated 680 megawatts with four units and Geregu (Gas) which produced 236 megawatts with two units.
The details were contained in the document of the Independent System Operator (SO) titled: “List of GenCos and their MW Load @ 14:00hrs on 15/01/2023.”
The plants that generated 3,787.60 megawatts, according to another document titled: “List of GenCos and their MW Load @ 13 hrs on 15/01/2023,” were Afam VI (Steam) 14Omw, Alaoji NIPP (Gas) 103.10mw, Azura-Edo IPP (Gas) 420mw and Dandikowa GS (Hydro) 32.30mw.
The SO of the Transmission Company of Nigeria (TCN) said Delta (Gas) generated 330mw, Egbin (Steam) 692mw, Geregu (Gas) 235mw, Ibom Power (Gas) 103.80mw and Jebba Hydro 372mw.
It also noted that Kainji (Hydro) generated 411mw, Okpai (Steam) 208mw, Omoku (Gas) 40mw, Omotosho (Gas) 130.70mw, Omotosho NIPP (Gas) 100.70mw, and Paras Energy (Gas) 64.40mw.
The document added that Sapele (Steam) produced 108mw while Shiroro (Hydro) generated 287mw.
According to the document, the SO allocated 3,248MW to the 11 electricity Distribution Companies (DisCos).
So in its distribution load profile data at 15:26hrs 15/01/2023, said while Abuja DisCo got 439mw, Benin DisCo 268mw, Eko DisCo 406mw, Enugu 313mw, Ibadan DisCo 395MW and Ikeja DisCo 462mw.
The document also noted that Jos DisCo was allocated 187mw, Kaduna DisCo 218mw, Kano DisCo 231mw, Port Harcourt DisCo 236mw and Yola DisCo 93mw.
Meanwhile, Association of Power Generation Companies (APGC) attributed the decline in production to grid disturbance.
The APGC Managing Director, Dr. Joy Ogaji, said: “There was grid disturbance.” Asked why there was grid disturbance, she said “Due to inadequate payment.”
According to her, the debt that the Nigerian Bulk Electricity Trading Company (NBET) is owing the GenCos is over N1 trillion.
She further explained that by GenCos contract, the outstanding falls into different categories.
She added that it is also payment on Capacities made available and tested by NBET’s annually.