Japan currently has 54 operating nuclear reactors with a total installed generating capacity of around 49 GW, making it the third-largest nuclear power generator in the world behind the United States and France. (EIA)
Before the Fukushima plant’s partial meltdown clarified the hazards of nuclear power, many considered the plants to be completely safe.
Japanese utilities are now drafting new safety measures, particularly for plants sitting directly on ocean coasts. These safety measures put the threat of tsunamis at the top of the list. So utilities intend to move backup generators to higher elevations as protection against tsunamis. They will secure extra cooling equipment. And they will build taller breakwater walls. (Wash Post, 4/14/2011)