The power generation record was reported in the website of Nigerian Electricity System Operator on Friday.
TCN said that 4,285.90 megawatts was the total output by power generation companies, and had been transferred to the 11 distribution companies across the country.
Electricity generation in the country has been stable in the last two months, rising from about 2, 983 megawatts to over 4, 000 megawatts.
Although power has improved, many parts of the country have remained without power supply owing to problems with the distribution companies, including provision of pre-payment meters.
Acting Chairman of Nigerian Electricity Regulatory Commission (NERC), Dr Anthony Akah, had recently disclosed that no fewer than four million electricity consumers in the country were awaiting supply of the meters.
Akah said that although the commission had improved on metering system, unavailability of meter manufacturing companies was hindering the maximum provision of the product to Nigerians.
He said that the commission would sanction any distribution company which failed to comply with directives relating to the distribution of meters.