In the early eighties an acquaintance asked me to go with him to a protest meeting against the THTR. I did not really feel like it, nor did I have the time, but this guy just wouldn't take no for an answer. It must have been one of my weaker moments because I finally gave in, and off we trotted to the rally. It was a sunny Sunday in spring, so why not go for a walk and get a close-up view of a nuclear power station? After all, there must be worse ways to spend one's time. The march turned out to be quite pleasant.
True, some of the characters looked a bit weird and wonderful, but there were also plenty of "normal" citizens. Everybody sized up everybody else, and one thought must have crossed many minds: "What a bunch of weirdos - hope my colleagues don't see me mixing with this lot!"
Whatever my first impressions, this varied gathering of believers and atheists, politicos and the apolitical, proselytes and doubters turned out to be quite stimulating, and I had a lot of fun chatting to people. I had no objections to repeating the experience when the opportunity presented itself on one of the following Sundays…
But resistance can also be a lonely business - especially on rainy days. Enough to make you grateful for the unfailing police presence. Always reliable, always right on time.
Soon I became interested in the real purpose of these gatherings: I began to gather information on the technical details of this power plant, which was impressive enough because of its sheer bulk - not to mention the surrounding concrete wall of 3 m height, which gave it the aspect of a medieval castle. The material distributed by the operator, the HKG (Hochtemperatur Kernkraftwerk Gesellschaft) was not very informative, but virtually every sentence exuded the reassuring confidence: "Don't worry, we're in total control."
- No task too tricky for the engineer… - in german it's sounds better ;-)
I found this tone rather disturbing, for I had come across such an attitude while training as a materials quality-controller. My experience was: the more arrogant the "experts", the less likely they are to be plagued by pangs of conscience. After all, delegating responsibility is the first thing they learn. This initial feeling of unease deepened after I spoke to some "people in charge", and I grew suspicious. One thing became clear to me: "I had to learn more", because I didn't want to be taken for a ride, or ridiculed for lack of expert knowledge. So I delved into this field of knowledge as far as it seemed necessary, and I soon discovered the weak points in the case for nuclear energy - a case which the pro-nuke faction continues to argue now as they did then.
- Murphy's Law: If anything can go wrong, it will - sooner or later
1. The totally unresolved matter of waste disposal - after all, who can put his or her head on the block for what is going to happen over the next 50 000 years?
2. Human beings - the unpredictable, but decisive "human factor" has not been accounted for in their calculations. These calculations may be totally convincing in theory, but in practice human beings have a finger in the pie, and as we all know… "Safety" exists on paper only - and what if a mistake happens, a mishap, an oversight? Then the human being involved shrugs and says: "Oh, I'm really sorry, I couldn't help it, I did my best and therefore I cannot be held responsible!"
3. Surprisingly, or perhaps not that surprisingly, not a single insurance company is prepared to insure the operation of a nuclear power plant.
4.) Each atomic power plant and each individual Castor transport must be constantly guarded and/or escorted, because of the high hazard potential, by safety forces. Each atomic plant is a step on the way to the police state. Even if to each atomic power plant an air defense cannon belongs, it will be necessary no longer to discuss whether the employment of the military in the own country is desirable or not.
5.) There is no peaceful use of the atomic energy - energy producing nuclear reactors supply the material for the building by atom bombs is used, each civilian research within the range of the atomic energy is just as usable for military (dual use).
Soon the people visiting the information stands ...
The idea to use graphite pellets (or pebbles) instead of uranium rods in steel jackets as reactor fuel, was developed by Dr. Rudolf Schulten in the late fifties. In 1967 the first pebble bed reactor prototype was put into operation at the Jülich Nuclear Research Centre. It had a nominal output of 15 megawatt and reportedly functioned without a hitch - until a breakdown occurred in 1978, when 25 tons of water crashed into the reactor.
Construction work on the 300 megawatt thorium high-temperature reactor in Hamm/Uentrop began in 1970 and was supposed to be completed within 5 years, but eventually the construction period lengthened to a mere 15 years.
Up to 1985, when a provisional operating licence was granted, the building costs for the THTR had by far exceeded the projected amount of 690 million Deutsche Mark and instead mounted to a whopping 4 billion DM. And still, an end to this waste of taxpayers' money is not in sight. (Total costs up to 1994: Over 6,7 billion DM)
(It makes you wonder about the total amount spent up to 2003, and about the number of jobs, which could have been created…
According to the latest information supplied by Horst Blume in
Rundbrief Nr. 99 ("Circular archive no. 99"):
All together Germany spends 5.6 million Euro per annum on the THTR!
Footnote by the present author: Don't be surprised if it's more than that.
Thorium appears to have been an unsuitable fuel, and so they began feeding the reactor with uranium - and extracted weapon-quality plutonium to boot. For cosmetic reasons the original name was left unchanged, or coolly shortened from THTR to HTR.
There were quite a number of non-notifiable unforeseen incidents - the number of notifiable incidents totalled 21.
It was assumed that the breakage of pebbles (pellets) would be an infrequent occurrence, perhaps 1 or 2 cases per year. But in fact a total of 8000 pellets* disintegrated, and in each case the dust resulting from breakage had to be extracted and disposed of…
*(I first wrote 800 because I couldn't believe the higher number. So I checked again, and the figure was indeed 8000.)
Accidents, unforeseen occurrences - whatever you want to call these events - happened from time to time, as indicated in the "THTR Facts" above. - However, the breakdown through which the operating company lost the favour of the Social Democrats (SPD), the governing party in the State of North-Rhine Westphalia, happened on 4th May 1986.
A cloud of radioactivity, emanating from the radiant ruins of Chernobyl after the mega-disaster on 26. 04. 1986, hung over Europe…
This billboard poster
was created by
the draughtsman
Fritz Brümmer,
a resident of Hamm
Fuel replenishment at the THTR at Hamm/Uentrop was supposed to proceed automatically - at certain intervals, precisely 60 new pellets were to be automatically fed in at the top, and 60 "old" pellets were supposed to be discharged from the bottom. On the evening of 4th May 1986, however, the exceptional occurred and only 41 pellets were to be added (who knows why?). Since the fuelling mechanism could not cater for exceptions in automatic mode, it was switched to manual mode…
One of the pellets - apparently the very first one - got stuck in the tubing of the fuelling device, so that it could move neither forward nor backward. The technician then applied gas pressure to force the pellet out of the tube and into the reactor, but the pressure alone was not strong enough. Then the man at the controls sent the remaining 40 pellets down the tube, one after the other, perhaps in the hope of building up pressure this way…
The result of these efforts: 41 broken pellets and one damaged gas lock. The function of this lock was to prevent the cooling agent, helium, from leaving the reactor; now it failed to close, probably kept ajar by remnants of the broken pellets. In this way, the dust from pulverised pellets and any amount of helium entered the atmosphere surrounding the reactor. As fate would have it, one measuring instrument happened to be switched off at the time, so that nobody could tell precisely how much radiation escaped…
- Parents in Werries demand:
Don't destroy our children's future -
Sommer in the City
at Paulus-Church - Hamm 1987
Nobody believed what
the eloquent gentlemen
in the smart grey suits
told them-
not a single word.
All this would have been bad enough, but the cherry on top was the HKG's attempt to dress up this incident, first as a "routine cleaning operation" and then as an "unforeseeable misfortune". Only several weeks later did the company admit that there had indeed been a breakdown, accompanied by the release of considerable quantities of radiation…
The breakdown described above was, as I said before, the beginning of the end of the THTR in Hamm/Uentrop. The State government of North-Rhine Westphalia lost its nerve. After the Chernobyl disaster of 26. 04. 1986, even the most ardent proponents of the "peaceful use of nuclear power" were shaking in their boots…
By the way, of the four chimneys on the photo, the smallest one is the left, on top of the reactor roof.
The THTR had exceeded its budget nine times over, its construction had taken thrice as long as anticipated, the credibility of the operating company had been compromised, the public was rubbing their eyes and waking up to reality…
The VEW was beleaguered and worn down.
Vereinigte Elektrizitätswerke
("United Electricity Works")
(Translator's note)
For weeks the HKG denied and covered up the breakdown and the radiation leakage, and only the irrefutable evidence of meter readings and measurements and various other factors (a secret internal document was leaked to the public) forced the operating company to give up their initial strategy of "business-as-usual" and "breakdown? what breakdown?"…
It was probably the HKG board's approach of sacrificing truth to strategy, which prompted the politicians' turnaround - in the right direction: They decided not to throw additional billions of taxpayers' money after the four billion which had already gone down the drain.
In the summer after Chernobyl more and more people came…
So the "Social Democrats' reactor" had to go. The alleged "perpetuum mobile" of Kalkar, with its price tag of 7 billion DM the nation's most expensive technological monument, was giving the comrades in North-Rhine Westphalia more than enough trouble on its own. The last thing they needed was another unspeakable nuclear scandal…
The THTR was shut down in 1989 and we bring some flowers to the grave. Further billions must be spent on the dismantling process, only this time the costs will be counted in EUROs...
Incidentally, the most modern cooling tower in Europe, right next to the A 2 Autobahn (highway) between Dortmund and Hanover, was blown up (intentionally) in 1991. Perhaps it had simply become redundant, but perhaps we may be allowed to indulge in a little conspiracy theory. I suspect the tower was simply an all too obvious reminder of the arrogance of those in power, of the disdain with which they waste taxpayers' money. It was also a highly conspicuous monument to a failed technology, and it could have inspired in the passing motorists all sorts of uncomfortable questions and unkind comments.
Every year, the THTR costs 5,6 million Euro!
Now this pretty cooling tower is out of sight, out of mind…
Which is rather a pity, because the cooling tower was the only non-hazardous aspect of the whole plant. It only turned radiant when the sun beat down on its aluminium jacket!
But the game with the radiant pebbles is far from over.