Hitachi, Ltd is looking for partners to help share the cost of building a new nuclear complex on the Welsh island of Anglesey, the Nikkei Asian Review reported on 16 June.
The cost of the Wylfa Newydd is expected to be around ¥3tn (£20.5bn). The British government has already pledged to arrange ¥2tn in loans.
Hitachi has been in talks with the Development Bank of Japan and a number of Japanese energy firms about funding the project.
The article suggests, however, that gaining a commitment from Japanese power providers will not be easy.