Tokyo Electric Power Co. (9501.TO) said Friday that it is forecasting electricity demand in its service area will hit 74.68% of available capacity between Aug. 20 and Aug. 26, well below peak usage levels recorded earlier this week.

The utility commonly known as Tepco said that it expects power capacity during the period to stand at 55.30 million kilowatts, exceeding anticipated maximum demand of 41.30 million KWs.

Expected power capacity on average was lowered from 56.00 million KW previously foreseen, due partly to maintenance of a thermal power generator and a decision to push back installation of an extra gas turbine at another thermal power plant.

The outlook for power demand was also revised down from 55.00 million KWs in the prior outlook due to an anticipated drop in temperatures and energy saving activities.

On Thursday, electricity demand in Tepco's service area reached 49.22 million KWs, making up 90.14% of supply and crossing the 90% threshold for the first time since July 1. The temperature in
Tokyo hit 36.1 degrees Celsius, a record high for this summer.