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Japan Power

Japan To Restart Nuclear Power Tomorrow After Energy Prices Soar 338

An anonymous reader writes: After the Fukushima meltdown, all of Japan's nuclear power plants were shut down, the last in late 2013. This week the government plans on starting up reactor No.1 at the Sendai nuclear power plant. Energy prices have risen 30% since 2011, and it is hoped that the plant will soon be producing a surplus of electricity. Not everyone is happy about the plant restarting. This weekend, about 2,000 protesters marched around the plant and voiced their opposition. "Past arguments that nuclear plants were safe and nuclear energy was cheap were all shown to be lies," said writer Satoshi Kamata, one of the demonstration organizers. "Kyushu Electric is not qualified to resume operations because it has not completed an anti-quake structure to oversee a possible accident as well as a venting facility."
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Japan To Restart Nuclear Power Tomorrow After Energy Prices Soar

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  • And... (Score:5, Funny)

    by LynnwoodRooster ( 966895 ) on Monday August 10, 2015 @05:53PM (#50288945) Journal
    Gozilla breathes a sigh or relief... Nuclear power, sweet, lifegiving nuclear power!
  • by Firethorn ( 177587 ) on Monday August 10, 2015 @05:57PM (#50288975) Homepage Journal

    From the article: "has built stronger, higher tsunami walls near the new plant" and "Regardless, the 31-year old reactor"

    It's sad that 31 years old counts as 'new'.

    Consider that if they had had some really new nuclear plants that Fukushima probably would have already been shut down.

    • by Applehu Akbar ( 2968043 ) on Monday August 10, 2015 @06:07PM (#50289063)

      Japan's newest nukes are of the very latest design, and all of the plants being restarted have passed the latest safety tests, on a date that has been planned for years. No, this is not some panic move "in response to soaring energy prices" as the headline claims.

      • No source of earthly power is without consequence and repercussion.

        There will be opportunistic learning windows at every stage of development as we learn what not to do. In everything that we get better at.

        There has to be an acceptable level of imperfection in the human hands that exploit nuclear power generation.

        • by FranTaylor ( 164577 ) on Monday August 10, 2015 @06:37PM (#50289253)

          There has to be an acceptable level of imperfection in the human hands that exploit nuclear power generation.

          Yeah, that's the ticket, keep telling the nuclear fuel to be more forgiving of stupid humans, that's how we prevent accidents.

          • by rmdingler ( 1955220 ) on Monday August 10, 2015 @07:02PM (#50289483) Journal
            You don't ever, really, completely prevent accidents.

            There becomes a measurable, yet acceptable level of environmental consequence for the creation of energy using fossil fuels, hydro, solar, and even wind.

            Should the bar for nuclear use be set right near perfection? Of course not, but maybe [youtube.com]

            • Re: (Score:2, Insightful)

              by drinkypoo ( 153816 )

              You don't ever, really, completely prevent accidents.

              The best argument against nuclear power ever! Thanks for that.

              Consequences of a solar event: sunburns
              Consequences of a wind event: if your windmills are designed properly, you can pitch your props flat and nothing bad happens
              Consequences of a coal plant event: severe
              Consequences of hydro plant failure: massive
              Consequences of a nuclear plant event: generational

              Why is this even an argument?

              • by epyT-R ( 613989 )

                Because solar and wind lack the energy density needed. Switching to these exclusively in their current technological state would also cause massive death from starvation, and likely, a second dark age as well.

              • That's an invalid comparison. It's like comparing how a plane crash kills hundreds of people while a car crash kills 1-4, therefore cars must be safer.

                To compare properly, you have to normalize the consequences by the amount of power generated. So 1 nuclear plant = 1 hydro plant = 2 coal plants = 7500 wind turbines = 19 square km of solar panels. Then you apply the failure rate of each technology based on the construction, operation, and maintenance of that amount of infrastructure. Even with Fukushim
              • And yet if you measure deaths per TWH, nuclear is still safer than wind or solar. Why?

                The answer is because wind and solar are diffuse and so the plants are truly colossal, compared to a nuclear plant of equivalent power. Those plants have to be built and those raw materials have to be mined and construction and mining deaths are still a thing.

                Wind and solar don't have the single catastrophic accidents, but they more than make up for it in lots and lots and lots of small accidents. But "gut dies in a constr

      • by Trepidity ( 597 ) <[delirium-slashdot] [at] [hackish.org]> on Monday August 10, 2015 @06:39PM (#50289269)

        Japan's newest reactors are indeed of a modern design, but the specific plant whose restart is discussed in this article, Sendai, is still a 2nd-generation [wikipedia.org] plant. It's a newer one than Fukushima (1984 vs. 1971), but not a 3rd-generation plant.

      • by ColdWetDog ( 752185 ) on Monday August 10, 2015 @07:00PM (#50289463) Homepage

        Japan's newest nukes are of the very latest design, and all of the plants being restarted have passed the latest safety tests, on a date that has been planned for years. No, this is not some panic move "in response to soaring energy prices" as the headline claims.

        No, not really [nationalgeographic.com].

        "The vast majority of plants under construction around the world, 47 in all, are considered Generation II reactor designs—the same 1970s vintage as Fukushima Daiichi, and without integrated passive safety systems."

        Note the last phrase 'without integrated passive safety systems". That is the key. Fukashima required external power to shut itself down safely. Yes, TEPCO could have done things differently - site generators uphill, install a seawall that could actually contain a worst-case-scenario earthquake. Installed a hydrogen vent system. But it didn't. And TEPCO stated for years that the system was safe.

        Until you can shut down a reactor all by itself, then it isn't safe.

        • The Chinese are presently building a lot of Westinghouse AP1000 nuclear reactors which are passive safety Generation III nuclear reactor designs. The current owner of Westinghouse BTW is Toshiba Group.

          In fact the first one should be started up next year:
          https://www.youtube.com/watch?... [youtube.com]

    • by trout007 ( 975317 ) on Monday August 10, 2015 @06:12PM (#50289097)

      Imagine if the nuts never stopped reactor development? We'd have breeder reactors by now with little waste and much better air.

      • Imagine if the nuts never stopped reactor development?

        Not only are people against nuclear power potentially quite rational (some of them are nuts, sure) but nobody stopped reactor development. They just chased it to a handful of countries.

    • From the article: "has built stronger, higher tsunami walls near the new plant" and "Regardless, the 31-year old reactor"

      It's sad that 31 years old counts as 'new'.

      Consider that if they had had some really new nuclear plants that Fukushima probably would have already been shut down.

      Awesome, so basically if it hadn't been for anti-nuclear protestors, we likely have never had a Fukushima incident.

      • by MrKaos ( 858439 )

        From the article: "has built stronger, higher tsunami walls near the new plant" and "Regardless, the 31-year old reactor"

        It's sad that 31 years old counts as 'new'.

        Consider that if they had had some really new nuclear plants that Fukushima probably would have already been shut down.

        Awesome, so basically if it hadn't been for anti-nuclear protestors, we likely have never had a Fukushima incident.

        According to the official report if it hadn't been for collusion between the regulator and TEPCO [nirs.org], we likely have never had a Fukushima incident.

    • What it doesn't say is that this power plant (Sendai/Kyushu) is close to one of the largest active volcano on Earth, mount Aso [wikipedia.org]. In this area, an eruption of mount Aso is more to be feared than an earthquake / tsunami like in 2011. So the next excuse is gonna be "look, that wasn't a tsunami, that wasn't an earthquake, that was a volcano eruption which was [unexpected/very unlikely/not seen before...].
  • by Joe Gillian ( 3683399 ) on Monday August 10, 2015 @06:01PM (#50289007)

    It should've been obvious to everyone involved that shutting down all the nuclear reactors in Japan as a reaction to the Fukushima meltdown with absolutely no replacement strategy wasn't a sustainable option.

    • Bah, it was a popular decision with the public - and that is what democracy is all about!
    • by Kohath ( 38547 )

      So? Lynch mobs and witch hunts are immune to ideas that are merely "obvious".

  • Japan actually has a large, and largely untapped, capacity to use wind power. They also have quite a lot of hydroelectricity, which is useful for buffering against variations.

    Wind power is actually cheaper than nuclear anyway now.

    Nuclear power is probably not such a great idea for Japan, it's quite a small country, very highly populated, and on the ring of fire, and any accidents could have much worse effects than we saw with Fukushima. With Fukushima, it was fortuitous that it was on the East coast, and th

    • Re: (Score:2, Insightful)

      by Anonymous Coward

      Wind power is not cheaper and has its own problems. It is certainly not cheaper than re-starting existing nuclear plants.

      Plant cannot withstand tsunamis, that is well know. They should not restart any plants that are in tsunami vulnerable areas. They have proven to stand up to earthquakes quite well, as they were designed to do.

      Cooler heads are prevailing in Japan.

    • by Harlequin80 ( 1671040 ) on Monday August 10, 2015 @06:51PM (#50289377)

      The other way to look at it is if Fukushima had been on the West coast we wouldn't be talking about it at all and it would never have been damaged by the Tsunami.

      All power generation systems comes with some kind of risks. As a species we have been using nuclear all around the world for over 50 years and there are around 450ish plants with only 2 accidents of major note. In both instances we have learned what to look for and how to defend against those and similar issues in the future.

      One of the huge risks on other energy sources that is a major reason why Japan will have a nuclear energy sector for the foreseeable future is it is the only reasonably independent energy source available to it which other countries can't take away easily. Japan has no major fossil fuel reserves so must import gas, coal etc. putting it at risk to other countries for its energy supply.

      The same can be seen in their food production. Japan intensively farms its land and supports / protects its farmers. This is so that in the event of a conflict they retain the ability to feed themselves without imports.

      Wind is great, solar is great, hydro is great but I'm not convinced there is enough capacity, built or build-able, in those sources for Japan to move away from nuclear at this stage.

      • There's over 600 GW of potential on and off-shore wind power around Japan, the normal average capacity factor with wind is at least 25%; often 35%. In other words there's enough wind power to power the entire country, just with wind power, at least on average. (For reference, the peak electricity demand in Japan is around 160GW during the summer.)

        https://en.wikipedia.org/w/ind... [wikipedia.org]

        If you add some solar, and the existing hydroelectric then there's more than enough power and energy right there.

        And imports are a

        • It's not impossible but it would be damn hard then. If you could manage a build out of all 600 GW of wind power, that would be a cost of $600 billion minimum, based on halving the cost figure I found here - http://www.windustry.org/how_m... [windustry.org]

          Japan has 27GW of hydro currently so that will cover the short fall of the 25%. So I guess it is technically possible. But it leaves almost no room for growth in power demand in the future. It would also require every possible location to be approved and to find money

  • It is quite hard to understand why they did not massively invest in renewable energy sources since Fukushima: wind and solar are obvious, but for islands in a earthquake zone, tidal and geothermal should be interesting to harvest.

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