Nuclear power is about 35-40% of Japan's grid, according to the what appears to be a site operated by Japanese authorities. "At present, there are 52 commercia

Nuclear power is about 35-40% of Japan's grid, according to the what appears to be a site operated by Japanese authorities. "At present, there are 52 commercial nuclear reactors in operation in Japan with a total generating capacity of 45,742 megawatts. Nuclear power supplies about 35% of Japan’s total electricity demand. It is expected that nuclear energy’s share in electricity generation will increase to more than 40% by around 2010."[1] [1] http://www.japannuclear.com/files/Japan%20Nuclear%20Fuel%20Cycle%20Program%20(February%202003).pdf http://www.japannuclear.com/files/Japan%20Nuclear%20Fuel%20C...