I was shocked when I heard that they had problems with their backup generators.
I worked in a US nuke plant back in the early nineties. The plant was built in the sixties. It had 6 diesel locomotive engines for backup power. They did maintenance on three engines at a time so that there were always at least 3 available for emergencies. Each engine was in a separate building with reinforced concrete walls that were 5 feet thick. All normal access had to be from inside the building. It only had limited access from the outside through a 4x4-foot opening that was normally sealed with huge steel hatches bolted on both sides of the opening. There was no way in hell the engines could get flooded because the rooms were considered part of RCA (Radiologically Controlled Area) and the room was water and air tight to the outside. I'm not exactly sure where air came in and exhaust went out, but I'm sure it was probably on the roof somewhere and would be well above tsunami levels even though the plant was in a location that would never experience a tsunami.
When they designed the buildings that housed the generators in for that nuke plant, did they consider a potential tsunami? Also, that site has 6 reactors, they should have had generator redundancy out the wazoo. The only way I can fathom that all the generators got flooded is if there was come major negligence on the part of the people who planned and built the place.
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