Phew, i do know that some of their reactors are pretty old but imho nuclear overall is pretty safe and one of the best ways available still for producing vast amounts of electricity. Hopefully they will build new ones to phase out the old
"pretty old" is an embellishment in this case. They run the OLDEST nuclear reactor of the world.
To repeat it, one of the richest countries of the world runs the oldest nuclear reactor in the middle of central Europe. If this one blows up Switzerland and Southern Germany is toast forever. There will be no lucky wind directions.
And it doesn't help that the Swiss don't have a independent regulating authority for nuclear energy.
A PWR isn't going to "blow up" when it gets too old, or at all really. Chernobyl, the only large-scale plant to ever actually blow up, had a crazy dangerous design compared to any of these older reactors (and you're not kidding about them being old, they are seven years older than Chernobyl).
Looking at the chain of events during the tests that lead to the accident I'd say it was mostly human error as well as the flawed hierarchical structure of soviet organisation. The critical reactor design flaws were all accounted for in protocols that were not followed by the higher up being present against the strong advice of the engineers. Had these been followed, nothing would have happened, although there is one flaw they probably didn't account for: the power spike during control rod insertion, which has been fixed with an updated control rod design and protocols.
I'd argue that any reactor design that doesn't just allow to be shut down and walked away from, is inherently unsafe - it's just that RBMK have far worse consequences when humans screw up, which can be seen as their fundamental flaw, they basically miss a safety net in the form of an auxillary containment. Fukushima showed what could happen in reactors like the ones used in Switzerland - IMO that's way more manageable than climate change, although the question remains whether 'china syndrome' is possible and how such a true worst case would look like. I once did some rough calculations on how much radioactive material is present in typical reactors, and it's really quite staggering - dispersed in bad ways you basically get lethal doses for hundreds of millions of people.
So the only sane way forward IMO is to finally replace all these old designs with ones that have passive cooling systems in an emergency, meanwhile passing housing laws for new houses that require a certain percentage of solar roof, x amount of kWh battery per inhabitant as well as the ability to feed the grid from both roof and battery in order to create a stable renewable grid. Unfortunately no green party is pragmatic enough - their anti nuclear stances mean that we'd have to increase carbon reliance before being able to decrease it, which poses IMO greater dangers than even the worst case imaginable with nuclear. Therefore I'd rather vote for those who want to keep nuclear rather than those who promote renewables.
I can't find a source for it now, but I remember reading about an incident at Ignalia-1 in Lithuania, that foresaw the design issues that caused the Chenobyl incident a few years before. Apparently it was reported, but the Soviet leadership decided not to do anything about it and keep it secret.
Even though Ignalia-2 had the most advanced safety features of any RBMK reactor, a condition of Lithuania's EU membership was the plant be shutdown. As such the Baltic states have been very dependant on Russia for energy since the shutdown.
Belarus is in the process of building a plant on the Lithuanian border. Although it's PWR and has many safety features RBMK didn't have, thanks to politics the lack of transparency over safety issues is rather concerning:
Soviet administration is kind of hard to wrap my head around. You'd think that (1) no financial incentives (ideally) and (2) accountability based on 'see you in the Gulag' if something goes wrong, would lead to people being more transparent about risks - but it seems the opposite happened!
Is it because those who have to bear the risks (e.g. RBMK on-site engineers) aren't the same who'd pass on information through the administrative chain? Was the main thing missing free information flow? Could communism work if all economic/infrastructure/administration units would just be forced to publish all their data in raw form, so other people could analyse it and make better decisions?
ENSI is Switzerland's independent regulatory supervisory authority for nuclear safety and for the security of nuclear installations since 1 January 2009. This satisfies the requirement for the independence of the regulatory body as stipulated by the International Atomic Energy Agency (IAEA).
"They run the OLDEST nuclear reactor of the world"
This is prudent and a wise financial choice, and it might be a hint why they are one of the richest countries in the world. No need to replace this simply because it is old: Rather, that an upgrade would pay for itself or mechanical reasoning. However, I'd assume there is regular testing and maintenance done to avoid some of the mechanical reasoning.
It's not a wise financial choice, since they currently generate a net loss of 1 billion each year, with no better prospects for the next 10 years.
They companies running the reactors even tried to give them away for free to Électricité de France, with no luck. I am against ruling out nuclear tech, like this initiative wanted, but the current state of nuclear power in Switzerland is a debacle.
Ultimately the state will have to to pay for the shutdown anyway, be it now or in 2025. It would have been a wise financial choice to shut them down now.
The plant is old, but that doesn't mean there would be anything wrong with it. When it is properly maintained, any worn components are replaced and it's completely stable. Safety systems improve all the time.
Perhaps I'm misreading your comment, but do you have actual insights that these particular power plants are properly maintained, components replaced, and there safety systems being improved in any way ?
There seem to be a generic feeling of "nuclear is fine" in reaction to all the anti-nuclear bashing going on, but few people seem to be really paying attention to the case at hand.
From what I read these reactors are not just old, they are built on an area that can have up to M7 earthquakes. The
seismic risk was taken into account when building the power plants, but after a new security audit following Fukushima, it appears the risk was vastly underestimated, and from there all plans of building replacement plants in the area got nerfed.
Basically these reactors are not actually deemed to be safe, it's just not practical to shut them down now without any alternative plan to cover for the electric needs of the whole country, when there is enough chance of no major earthquakes until they get decommissioned.
Not deemed safe by whom? The ENSI deemed them safe.
> In 2011, in response to Fukushima, ENSI called for a rapid review of seismic safety at all nuclear power plants in Switzerland. The results were to be submitted within a year and concentrated on the most important aspects. They showed that all Swiss nuclear power plants are sufficiently protected against earthquakes and flooding potentially caused by a breach in a dam following a seismic event. Further investigations also revealed that all nuclear power plants in Switzerland have a safety margin.
BTW the operation of nuclear power plant in Switzerland seems to be allowed as long as the ENSI accepts it as safe. Without any knowledge in the matter, I highly doubt there's no tremendous pressure and work done on the ENSI to be more lenient towards risk.
Switzerland won't get a tsunami, even if a M7 earthquake takes place. Also it's in the middle of Europe so better interconnected with other grids. Passive cooling is next to useless if your reactor containment and/or the passive cooling tanks or radiators break due to an earthquake. You still need power to drive pumps to cool down the reactor until the nuclear reaction is fully stopped and all heat removed. The fuel still generates heat after the rods are removed and nuclear poison is injected.
And if Switzerland would get an earthquake and a tsunami, the actual disaster would not be with the nuclear reactors; it would be with the direct consequences of the earthquake and tsunami.
We just had a nuclear disaster which is fresh in those people's minds.
To put it into perspective, the Fukushima disaster has made 800000 hectares of land unusable for farming, which is more than the area of land under cultivation in the entire country of Switzerland.
The plan of shutting down half the plants by next year was pretty insane and had no chance of passing. Switzerland is still getting out of nuclear and won't build any new plant, just not on that ridiculously short timeframe.
And replace base load nuclear power stations with what? Coal? Gas from Russia? I don't know if they have any usable geothermal resources but that would be the only sound renewable replacement for nuclear.
> And replace base load nuclear power stations with what?
Indeed, that's the fundamental question!
It's easy to be against something for its drawbacks. But a serious discussion must start from either an alternative with similar value and fewer negatives, or a plan to give up the benefits at all.
Just saying "No this, no that" is immature, in my humble opinion.
> Currently, no electricity is being produced from geothermal sources in Switzerland. [...]
> The potential for geothermal electricity production in Switzerland is very high, but there is still a great deal of uncertainty regarding the associated costs and feasibility. [...]
> Experts anticipate that, by 2030, around a dozen geothermal plants will be in operation which will produce a combined total of 800 GWh of electricity.
If the externalities of CO₂ emission were included in energy prices, then nuclear wouldn't seem so expensive. Let's account for the externalities, and then let all energy sources compete on a level playing field.
but then lets also factor the externalties into nuclear too. too often the tax payer ends up having to pay for decommissioning, waste management, fuel recycling and cleanup in case of accidents.
The problem with the plan was that the government would have had to compensate the power plants for shutting down earlier than planned + pay to import (supposedly coal generated) power from neighboring countries.
The whole thing made no financial or ecological sense.
It would be extremely silly to stop using nuclear power. What we need is a passive safety system and type of reactor that cannot go critical and does not produce long lasting isotopes. Surprisingly, all of these are ready from the technology point of view, the only reason not to build them is financial. There are also plans to use the waste of older reactor models in the new gen IV type reactors and produce isotopes that last only few decades instead of few millenia. This would solve the biggest issue with older reactors, having a large amount of very active products that we need to store safely for a long time.
> It would be extremely silly to stop using nuclear power
That's what a minority in Germany said, before the majority voted against nuclear power. Hence the energy clusterfk Germany is now in.
Germany, a country with almost non-existent seismic activity killed its nuclear energy future because a tsunami happened in Fukushima. [1] It's not just "silly" it is that much silly, that sooner or later the prohibition will be repealed out of necessity. And the same fate would have happened to the Swiss plebiscite's result if it were a win.
[1] "voted against because of Fukushima" is technically a crass simplification. First Germans voted for the parties that pledged to end nuclear power. Then Merkel won the next election, cancelled nuclear-prohibition. But when Fukushima happened everybody knew Merkel would be out of office within weeks if she didn't immediately repeal her repeal.
You can play the emotional cord any time to get voters to vote on anything, and you can make any multi-dimensional problem single dimensional. Increasing fossil fuel usage is not the answer and it never will be the answer. Once we have great solar panels and large capacity batteries we can use solar as the primary source, but the technology is decades away, best case.
We do have large capacity batteries for solar right now, it's called pumped hydro storage. It's a droughtful prospect here in California, but I could see it working out in Germany pretty well.
I do think too battery improvement will mean a major progress.
However, I invite you to visit my country. Pick any date in the year but two months and you'll see: "capacity batteries for solar" are not our problem with solar ;-)
Heh, I'll just extrapolate from my visits to Seattle. I will try to visit next year -- during one of the sunny months.
Actually, I think a lot of the problems facing Europe with renewables are the same in the U.S. Abundant solar and wind available in the south, and no efficient way of transferring the electric power north.
Oh my... The current plan is to shut down all German nuclear energy plants by 2022.
One major problem a non-sunny, non-constant-storm and non-wast-ranges-of-mountain-spring country like Germany already faces:
Our energy-grid is not equipped for the high fluctuations nature provides in energy. We often have to use foreign energy grids so that ours doesn't collapse in times of high renewable energy input. The plagued neighbours repeatedly threatened to cut us off from their network if we proceed to do this
In the meantime, these energy dumps on our neighbours grids are re-labled as proof that the renewable energy agenda works because we became "net energy exporters".
Also, our grid isn't equipped for it because of the geographical dislocations of renewable power sources and where our industry clusters are. Thus creating the need for a "energy autobahn", basically 2-4 Gigawatt landlines.
It doesn't help that the same backwards-thinking that got us into quitting nuclear is actively engaging against the "electro-smog" of these new-to-be-built landlines, forcing those lines underneath, which is multiplying the costs.
Also, with the energy gap that's about to happen in Germany our neighbors are actively building nuclear plants right across the border. So if you had any fears about nuclear fallout ... well done!
Finally, all this massive undertaking results in chiseled government redistribution programs that amount to a humongous bill that ultimately those people will have to pay the most, that made least use of the redistribution programs. For instance: rich farmers estates are littered with subsidized solar panels, which produce energy that the energy companies have to buy for a constantly rising government-set minimum price. Those companies of course are sharing the costs with their customers, which includes everyone and the poor).
Your chart ends in 2012, the picture now looks very different. I agree that there is not enough storage to go with 100% wind/solar, but phasing out nuclear doesn't mean using more coal in Germany.
This article has some more up-to-date numbers regarding renewables. The share was already at 27% in 2014, 2016 will likely have more than 30%. I don't have 2016 numbers, but the growth in renewable production was 37% 2012-2015. And most of that growth came in 2015 with the plummet in prices for solar and onshore wind.
Where did you get the fact that they are ready from the technology point of view?
Switzerland is part of the Generation IV International Forum and is represented by the Paul Scherrer Institute. According to their Website[1]: "Before a commercial MSR can go into service anywhere in the world, scientists and engineers have another 20 to 30 years of research and development ahead of them."
The Chinese plan to build the first MSRs in 15 years, whether they will succeed is another question. If the price for solar keeps dropping it won't make sense to build new nuclear power plants in a few years.
Isn't there a thorium reactor type ready? Gen IV is a concept though, there are several different types, depending which one we are talking about the projects are in different phases. Molten salt reactor is surely not going to go into mass production next year and yes if the solar tech development accelerates we might not need any nuclear reactors at all.
45 comments
[ 2.8 ms ] story [ 113 ms ] threadTo repeat it, one of the richest countries of the world runs the oldest nuclear reactor in the middle of central Europe. If this one blows up Switzerland and Southern Germany is toast forever. There will be no lucky wind directions.
And it doesn't help that the Swiss don't have a independent regulating authority for nuclear energy.
A PWR isn't going to "blow up" when it gets too old, or at all really. Chernobyl, the only large-scale plant to ever actually blow up, had a crazy dangerous design compared to any of these older reactors (and you're not kidding about them being old, they are seven years older than Chernobyl).
https://en.wikipedia.org/wiki/Pressurized_water_reactor#Mode...
https://en.wikipedia.org/wiki/RBMK
(some of the design problems have been addressed in the still operating reactors)
I'd argue that any reactor design that doesn't just allow to be shut down and walked away from, is inherently unsafe - it's just that RBMK have far worse consequences when humans screw up, which can be seen as their fundamental flaw, they basically miss a safety net in the form of an auxillary containment. Fukushima showed what could happen in reactors like the ones used in Switzerland - IMO that's way more manageable than climate change, although the question remains whether 'china syndrome' is possible and how such a true worst case would look like. I once did some rough calculations on how much radioactive material is present in typical reactors, and it's really quite staggering - dispersed in bad ways you basically get lethal doses for hundreds of millions of people.
So the only sane way forward IMO is to finally replace all these old designs with ones that have passive cooling systems in an emergency, meanwhile passing housing laws for new houses that require a certain percentage of solar roof, x amount of kWh battery per inhabitant as well as the ability to feed the grid from both roof and battery in order to create a stable renewable grid. Unfortunately no green party is pragmatic enough - their anti nuclear stances mean that we'd have to increase carbon reliance before being able to decrease it, which poses IMO greater dangers than even the worst case imaginable with nuclear. Therefore I'd rather vote for those who want to keep nuclear rather than those who promote renewables.
Even though Ignalia-2 had the most advanced safety features of any RBMK reactor, a condition of Lithuania's EU membership was the plant be shutdown. As such the Baltic states have been very dependant on Russia for energy since the shutdown.
Belarus is in the process of building a plant on the Lithuanian border. Although it's PWR and has many safety features RBMK didn't have, thanks to politics the lack of transparency over safety issues is rather concerning:
https://www.theguardian.com/world/2016/aug/09/belarus-under-...
Is it because those who have to bear the risks (e.g. RBMK on-site engineers) aren't the same who'd pass on information through the administrative chain? Was the main thing missing free information flow? Could communism work if all economic/infrastructure/administration units would just be forced to publish all their data in raw form, so other people could analyse it and make better decisions?
https://en.wikipedia.org/wiki/Swiss_Federal_Nuclear_Safety_I...
This is prudent and a wise financial choice, and it might be a hint why they are one of the richest countries in the world. No need to replace this simply because it is old: Rather, that an upgrade would pay for itself or mechanical reasoning. However, I'd assume there is regular testing and maintenance done to avoid some of the mechanical reasoning.
There seem to be a generic feeling of "nuclear is fine" in reaction to all the anti-nuclear bashing going on, but few people seem to be really paying attention to the case at hand.
From what I read these reactors are not just old, they are built on an area that can have up to M7 earthquakes. The seismic risk was taken into account when building the power plants, but after a new security audit following Fukushima, it appears the risk was vastly underestimated, and from there all plans of building replacement plants in the area got nerfed.
Basically these reactors are not actually deemed to be safe, it's just not practical to shut them down now without any alternative plan to cover for the electric needs of the whole country, when there is enough chance of no major earthquakes until they get decommissioned.
> In 2011, in response to Fukushima, ENSI called for a rapid review of seismic safety at all nuclear power plants in Switzerland. The results were to be submitted within a year and concentrated on the most important aspects. They showed that all Swiss nuclear power plants are sufficiently protected against earthquakes and flooding potentially caused by a breach in a dam following a seismic event. Further investigations also revealed that all nuclear power plants in Switzerland have a safety margin.
https://www.ensi.ch/en/2016/05/31/updated-seismic-hazard-ass...
An audit commanded by the Health departments to non goverment related parties points at the vastly under-estimated seismic risk: http://www.atomschutzverband.ch/xs_daten/Fakten/93_3_Experti...
BTW the operation of nuclear power plant in Switzerland seems to be allowed as long as the ENSI accepts it as safe. Without any knowledge in the matter, I highly doubt there's no tremendous pressure and work done on the ENSI to be more lenient towards risk.
Just like in Japan.
The nuclear plants in Switzerland are safer and more efficient than coal power plants.
To put it into perspective, the Fukushima disaster has made 800000 hectares of land unusable for farming, which is more than the area of land under cultivation in the entire country of Switzerland.
How do you compare the efficiency of two systems with dissimilar inputs?
Indeed, that's the fundamental question!
It's easy to be against something for its drawbacks. But a serious discussion must start from either an alternative with similar value and fewer negatives, or a plan to give up the benefits at all.
Just saying "No this, no that" is immature, in my humble opinion.
> The potential for geothermal electricity production in Switzerland is very high, but there is still a great deal of uncertainty regarding the associated costs and feasibility. [...]
> Experts anticipate that, by 2030, around a dozen geothermal plants will be in operation which will produce a combined total of 800 GWh of electricity.
http://www.bfe.admin.ch/themen/00490/00501/?lang=en
(Nuclear power in Switzerland in 2015 produced 23'000 GWh.)
The whole thing made no financial or ecological sense.
If you can read french, the official info (with both sides' opinion) is here: https://www.admin.ch/dam/gov/fr/Dokumentation/Abstimmungen/E...
And a german version is available here: https://www.admin.ch/dam/gov/de/Dokumentation/Abstimmungen/N...
https://www.technologyreview.com/s/602051/fail-safe-nuclear-...
http://blogs.discovermagazine.com/crux/2015/01/16/thorium-fu...
https://en.wikipedia.org/wiki/Generation_IV_reactor#Advantag...
That's what a minority in Germany said, before the majority voted against nuclear power. Hence the energy clusterfk Germany is now in.
Germany, a country with almost non-existent seismic activity killed its nuclear energy future because a tsunami happened in Fukushima. [1] It's not just "silly" it is that much silly, that sooner or later the prohibition will be repealed out of necessity. And the same fate would have happened to the Swiss plebiscite's result if it were a win.
[1] "voted against because of Fukushima" is technically a crass simplification. First Germans voted for the parties that pledged to end nuclear power. Then Merkel won the next election, cancelled nuclear-prohibition. But when Fukushima happened everybody knew Merkel would be out of office within weeks if she didn't immediately repeal her repeal.
This does not look good:
https://upload.wikimedia.org/wikipedia/commons/a/af/Electric...
However, I invite you to visit my country. Pick any date in the year but two months and you'll see: "capacity batteries for solar" are not our problem with solar ;-)
Actually, I think a lot of the problems facing Europe with renewables are the same in the U.S. Abundant solar and wind available in the south, and no efficient way of transferring the electric power north.
One major problem a non-sunny, non-constant-storm and non-wast-ranges-of-mountain-spring country like Germany already faces:
Our energy-grid is not equipped for the high fluctuations nature provides in energy. We often have to use foreign energy grids so that ours doesn't collapse in times of high renewable energy input. The plagued neighbours repeatedly threatened to cut us off from their network if we proceed to do this
In the meantime, these energy dumps on our neighbours grids are re-labled as proof that the renewable energy agenda works because we became "net energy exporters".
Also, our grid isn't equipped for it because of the geographical dislocations of renewable power sources and where our industry clusters are. Thus creating the need for a "energy autobahn", basically 2-4 Gigawatt landlines.
It doesn't help that the same backwards-thinking that got us into quitting nuclear is actively engaging against the "electro-smog" of these new-to-be-built landlines, forcing those lines underneath, which is multiplying the costs.
Also, with the energy gap that's about to happen in Germany our neighbors are actively building nuclear plants right across the border. So if you had any fears about nuclear fallout ... well done!
Finally, all this massive undertaking results in chiseled government redistribution programs that amount to a humongous bill that ultimately those people will have to pay the most, that made least use of the redistribution programs. For instance: rich farmers estates are littered with subsidized solar panels, which produce energy that the energy companies have to buy for a constantly rising government-set minimum price. Those companies of course are sharing the costs with their customers, which includes everyone and the poor).
This article has some more up-to-date numbers regarding renewables. The share was already at 27% in 2014, 2016 will likely have more than 30%. I don't have 2016 numbers, but the growth in renewable production was 37% 2012-2015. And most of that growth came in 2015 with the plummet in prices for solar and onshore wind.
https://en.wikipedia.org/wiki/Renewable_energy_in_Germany
What happened is that under Merkel, they increased the timeframe for abandoning nuclear energy after Fukushima, that was reversed after Fukushima.
[1] https://www.psi.ch/media/molten-salt-reactors-exploring-an-a...