The thirteen-member consortium was established on 22 October 2010, and its members consist of nine Japanese power companies (Tokyo Electric Power Co, Kansai, Chubu, Hokkaido, Tohoku, Hokuriku, Chugoku, Shikoku, and Kyushu), and three Japanese nuclear power-related manufacturers (Toshiba, Hitachi, and Mitsubishi Heavy Industries).
Konsorsium tiga belas anggota didirikan pada 22 Oktober 2010, dan anggotanya terdiri dari sembilan perusahaan listrik Jepang (Tokyo Electric Power Co, Kansai, Chubu, Hokkaido, Tohoku, Hokuriku, Chugoku, Shikoku, dan Kyushu) , Dan tiga produsen tenaga nuklir Jepang (Toshiba, Hitachi, dan Mitsubishi Heavy Industries).