Upon investigation, it was confirmed that a system trip occurred as a result of UPS
failure causing the loss of power supply to the monitoring instrument. The cooling
system was recovered by supplying power to the monitoring instrument through a
bypass. After replacing the failed UPS, power supply through UPS will be recovered.
UPS is not replaced to be a new one yet. Tepco stated they are planning to obtain the new UPS during this week.
Also, they still haven’t sorted out what caused the UPS trouble.
This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.