Tokyo Electric Power had an operating profit of nearly $5bn in the same period last year.
The operator of the Fukushima Daiichi Nuclear Power Station posted a net profit of about $180bn for the quarter, while sales grew 13.5% to nearly $1.9trn.
Tokyo Electric declined to issue a net profit outlook for the current financial year over uncertainty about when the operator would be able to restart its suspended nuclear reactors.
The Fukushima plant suffered meltdowns at three of its six nuclear reactors after it was hit by an earthquake and tsunami in March 2011.
Tokyo Electric has been struggling to deal with radiation-contaminated water as it continues to inject water into the three reactors to keep them cool.