In Japan, they named the reason for the upcoming shutdown of the reactor at Sentai NPP, which recently resumed operation

In Japan, they named the reason for the upcoming shutdown of the reactor at Sentai NPP, which recently resumed operation

In Japan, it was planned to shut down the nuclear reactor at the 2nd unit of the Sendai NPP located on the island of Kyushu off the coast of the Yellow Sea (south of the country). In Japan itself, increased attention is riveted to this power plant due to the fact that it became the first nuclear power plant in the country to be launched after the accident at the Fukushima-1 nuclear power plant.


The Kyushu Electric Power company serving the Sendai nuclear power plant announced that the reactor would be shut down on May 20. The period during which EB No. 2 will not work at a nuclear power plant will be at least 8 months. And this despite the fact that the second power unit resumed its activities in full only 4 months ago.

So what is the reason for the repeated shutdown of the 890 MW reactor?


The aforementioned company reports that no measures have been taken at the station to counter-terrorism protect the reactor. These measures had to be taken before May 20. But did not have time ...

In connection with the operating schedule of nuclear power plants, failure to comply with anti-terrorism safety requirements leads to the need to suspend the operation of the power unit, station.

The regulations for the operation of nuclear power plants in Japan say that station operators must use emergency control equipment that can remotely prevent reflow in the work area and the release of radioactive substances in the event of major accidents, including when an airplane falls into a reactor or when a terrorist act is carried out.

At present, Japan operates 6 nuclear reactors at nuclear power plants, including the mentioned reactor of the 2nd unit of Sendai NPP.

The total capacity of their generation is 6480 MW, which is only 20% of the total capacity of possible generation by the country's nuclear power plants.

By shutting down a reactor is understood its transfer to a non-generating mode.

It should be recalled that initially Sendai NPPs were not going to return to operation after the Fukushima accident. However, the authorities of Kagoshima Prefecture decided to return the plant to work, arguing that the complicated economic situation and rising energy prices. Authorities in the prefecture noted that the electricity generated by burning LNG brought to the country costs about 35% more than that generated by nuclear power plants.
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  1. Mitroha 19 May 2020 07: 45 New
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    that no measures were taken at the station to counter-terrorism protect the reactor

    Suddenly they didn’t have time, but they will close it for 8 months. Some kind of contrived reason.
    1. Civil 19 May 2020 07: 59 New
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      Here they are incompetent Japanese, but here everything works for us like a clock. Thanks to the USSR.
      1. Tatyana 19 May 2020 08: 13 New
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        Authorities in the prefecture noted that the electricity generated by burning LNG brought to the country costs about 35% more than that generated by nuclear power plants.

        And whose LNG? Surely from the USA!

        Apparently, it was not for nothing that they said earlier that the accident in Japan at the Fukushima-1 nuclear power plant was tuned by the Americans.
    2. The comment was deleted.
      1. Crimean partisan 1974 19 May 2020 08: 21 New
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        accident in Japan at the Fukushima-1 nuclear power plant was rigged by the Americans .......... yes this is nonsense. the main thing was an engineering error. namely the installation of auxiliary diesel generators in the basement. that is below sea level. and most importantly, the stupidity and stupidity of station staff and rescuers
        1. Mountain shooter 19 May 2020 09: 17 New
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          Quote: Crimean partisan 1974
          . and most importantly, the stupidity and stupidity of station staff and rescuers

          You are absolutely right. But the nuclear power plant project is American! With great complaints ... Well, then ... the staff for a long time tried to destroy the station. Well, destroyed, in the end. laughing
          1. Crimean partisan 1974 19 May 2020 13: 43 New
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            Well, then ... the staff for a long time tried to destroy the station ...... but not very long. about 23 hours. after which everyone massively dumped from there. leaving the firemen alone with the bursting reactors. Yes, and they, too, did not kamikazili for a long time;
        2. bar
          bar 19 May 2020 15: 02 New
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          and most importantly stupidity and stupidity of station staff and rescuers

          Exactly. In Japanese biorobots, it is customary to follow instructions, to improvise, even in extreme situations, they do not know how. As our experts said, it was enough to power the cooling pumps even from an external diesel generator to prevent a catastrophe. But, unfortunately, this was not written in the instructions sad
          1. Crimean partisan 1974 19 May 2020 21: 41 New
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            As our experts said, it was enough to power the cooling pumps even from an external diesel generator, ........ then on March 11, 2011 I watched how the work went .... it’s a complete P, and this is P until today and the end is not visible, the anus of the State Department is licked perfectly. no bastard or evil greta picks up
  2. Engineer Schukin 19 May 2020 08: 27 New
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    Quote: Tatiana
    Authorities in the prefecture noted that the electricity generated by burning LNG brought to the country costs about 35% more than that generated by nuclear power plants.

    And whose LNG? Surely from the USA!

    Apparently, it was not for nothing that they said earlier that the accident in Japan at the Fukushima-1 nuclear power plant was tuned by the Americans.

    Serious analytics.
    However, you have it all.
    1. Tatyana 19 May 2020 09: 28 New
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      Quote: Engineer Schukin
      Quote: Tatiana
      Authorities in the prefecture noted that the electricity generated by burning LNG brought to the country costs about 35% more than that generated by nuclear power plants.
      And whose LNG? Surely from the USA!
      Apparently, it was not for nothing that they said earlier that the accident in Japan at the Fukushima-1 nuclear power plant was tuned by the Americans.
      Serious analytics.
      However, you have it all.

      Ha! Do not like it - do not read! laughing
      Nobody finds you reading my comments. yes

  3. knn54 19 May 2020 08: 41 New
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    - no measures were taken at the station to counter-terrorism protect the reactor.
    The IAEA has revised all requirements for the level of security systems. It is possible to impose a "Post-Fukushima order." Once again.
    It is enough to "accidentally" move one of the control cassettes, and the reactor will be stopped.
    1. asv363 19 May 2020 22: 43 New
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      Quote: knn54
      It is enough to "accidentally" move one of the control cassettes, and the reactor will be stopped.

      The reactor of the 2nd unit of the Sendai NPP is a three-loop PWR, in which there are no control cassettes. Power is stopped or adjusted by absorbent rods. The unit is stopped because the regulator has not complied with.
  4. Kuroneko 19 May 2020 09: 20 New
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    The Japanese are definitely the inhabitants of the moon with their inhuman logic. ^ _ ^
    Because the only country that has firmly and permanently acquired a “nuclear fear”, and it was why, thanks to their dearest ally, the dash occupier - the USA but! continuing to use nuclear power plants (for example, the same Germany abandoned them a long time ago, and they certainly didn’t hammer it with cores. For now. =).
    1. orionvitt 19 May 2020 13: 40 New
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      Quote: Kuroneko
      firmly and permanently got the "nuclear fear",

      Quote: Kuroneko
      continuing to use nuclear power plants

      By your logic, in order not to stumble, you need to cut off your legs? However, what do I care about the Japanese and the Germans. Let them close everything that is, I am for it. Down with the hated atom, Greta Tumberg steers. laughing
  5. The comment was deleted.
  6. kamui91 19 May 2020 10: 27 New
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    I can’t imagine how the atom will survive at current oil prices.
    This is ridiculous.
    Even at 100 dollars it was subsidized, now with no chance at all.
    Well, there she is dear.
    1. Mountain shooter 19 May 2020 14: 06 New
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      Quote: kamui91
      Even at 100 dollars it was subsidized, now with no chance at all.
      Well, there she is dear.

      Even in this article, in black and white: gas-fired CHP plants are 35% more expensive than nuclear power plants (cost of electricity) ... Well, where does this come from? NPP energy is the MOST at low cost. And the safest ...
  7. fa2998 19 May 2020 13: 07 New
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    Quote: knn54
    - no measures were taken at the station to counter-terrorism protect the reactor.

    And what's the difference, the plane spikes on a working generator, or on a “non-generating one.” Chernobyl is guaranteed in both cases. recourse hi
  8. abrakadabre 19 May 2020 13: 32 New
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    Electricity generated by burning LNG brought to the country costs about 35% more than that generated by nuclear power plants.
    It’s strange. It seems that the cost of energy at nuclear power plants is much lower than with other generation methods. Not at some 30-40% there, but at times. Hm ...
    1. Beby 19 May 2020 19: 02 New
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      Quote: abrakadabre
      It seems that the cost of energy at nuclear power plants is much lower than with other generation methods. Not for some 30-40% there, but at times. Hm ...
      That's just the point, that "It seems".
      Maybe somewhere you came across the calculation of the cost of energy of nuclear power plants taking into account the disposal of spent nuclear fuel / stopped nuclear power plant? - here I have somehow never once come from those who claim the cheapness of electricity in nuclear power plants, or have seen sane calculations for the disposal of spent nuclear fuel / the nuclear power plant itself after the life of the power units.
      Those. where RBMK and similar channel reactors are used, designed to produce various isotopes, everything is clear: electricity is a by-product of their work! Those. about 30% of the thermal power of such reactors in electricity (and not in heating the environment) is definitely good.
      1. abrakadabre 24 May 2020 09: 17 New
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        Maybe somewhere you came across the calculation of the cost of energy of nuclear power plants taking into account the disposal of spent nuclear fuel / stopped nuclear power plant?
        That's just the cost of electricity from nuclear power plants and is given taking into account the full cycle. And it is 10 times if not more cheaper than another traditional one.
        The 30–40% given in the article mean only one thing - the greed of the owners of nuclear power plants who want to make the maximum profit.
  9. orionvitt 19 May 2020 13: 35 New
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    costs about 35% more than that generated at nuclear power plants.
    Nothing wrong. Give up oil and nuclear power plants, go to the "green energy", because you are all so advanced. And you will be happy. laughing