The project, in the town of Kokonoe, Oita prefecture, will be completed in May 2015.

A spokesperson for the Tokyo-based company declined to reveal which company will supply the PV modules.

Last month, it completed a 14MW ground-mount array east of Tokyo in Itako, Ibaraki prefecture. It expects to bring another 40MW solar project online this July in Futtsu, Chiba prefecture.