Electricity generation on Wednesday declined from 4,017MW at 14 hours to 1,892.30MW at 15:00 hours.
This is according to the Independent System Operator of the Transmission Company of Nigeria (TCN).
Twenty power plants were in operation when the grid recorded 4,017MW and later dipped by 2,125.66MW.
At 16:00 hours on Wednesday, the production increased to 1,191MW when only eight plants were operational.
The document titled: “List of GenCos and their MW Load @ 16:00 hour on 04/01/2023” stated that the plants that produced the 1,191MW were Alaoji 105.20MW, Dandikowa GS (Hydro) 32.58MW, Ibom Power (Gas) 106.40MW, and Kainji (Hydro) 499MW.
Omoku produced 109.20MW, Omotosho (Gas) 111.10MW, Paras Energy (Gas) 60.40M and Sapele (Steam) 107.20 MW.
The sudden surge also occurred on the grid at 12:00 hours on Tuesday when the only five plants which were in operation produced 1,112.20 MW.
However, observation shows that within that hour the figure rose to over 4,000MW.
But from its document titled: “List of GenCos and their MW Load @ 15hrs on 4/01/2023,” the hour under review, only 13 plants were operational.