On 9 August 2004, KEPCO reported that five of its employees were killed by a steam burst in the turbines housing building, at the Mihama Nuclear Power Plant in Fukui Prefecture.

On 22 March 2006, in Ōi Nuclear Power Plant, at the waste incineration facility area, where ash is packed in steel barrels, a fire broke out.

Beginning as early as 1987, Moriyama was a conduit for funneling cash and gifts to Kepco officials in exchange for kickbacks and contracts to real estate and construction-related firms.

[3] The earliest indication of the corrupt relations between Kepco and local businesses appeared in a report from the taxation authorities, regarding unreported income on "idle lands".

[6] In 2012 it was revealed that a member of the town assembly of Takahama, Fukui, Tomio Yamamoto, had received as president of the real estate company OHC Fukui, over 100 million yen for the rent of an unused factory over four years from 2006 to 2010 from a subsidiary of Kansai Electric Power Co. (KEPCO) The factory was used for storage, but the rent was unusually high, almost double the market price.

[8] Overall, more than 380 cases were discovered where money and gifts had been exchanged for the awarding of contracts to businesses connected to Moriyama, including pay-outs to board members and the company's president.

[12] At a meeting held on 10 April 2012 by the "energy strategy council", formed by the city of Osaka and the governments of the prefectures, it became clear that at the end of the fiscal year 2011 some 69 employees of Kansai Electric Power Company were former public servants.

"Amakudari" is the Japanese name for this practice: hiring officials that formerly controlled and supervised the firm: among these people were: Besides this, it became known that Kansai Electric had done about 600 external financial donations, to a total sum of about 1.695 billion yen: During this meeting some 8 conditions were compiled, that needed to be fulfilled before a restart of the No.3 and No.4 reactors Oi Nuclear Power Plant: On 14 September 2013, the day before the no.