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PostPosted: Feb 06, 2014 3:34 pm 
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Can someone point me to a resource on decommissioning of the ultra old generation one water cooled reactors ?
Someone on slashdot is claiming Germany decommissioned a reactor from the 1950s after Fukushima, which makes zero sense, but I need hard data to straight out this discussion. I believe that worst case it was one of the earliest Gen II reactors, activated circa 1970.
Maybe the first reactors shutdown were USSR designs installed on east Germany.
Any help would be appreciated.

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PostPosted: Feb 06, 2014 5:14 pm 
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In the United States, probably Dresden 1 in 1978.

Maybe San Onofre 1 in 1992.

It really depends on how you define "Generation-1".


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PostPosted: Feb 06, 2014 5:35 pm 
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Magnox could be defined as Gen I. Which means there is one left at Wylfa. But not water cooled


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PostPosted: Feb 06, 2014 7:40 pm 
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In Germany, maybe Stade ?

http://www.iaea.org/PRIS/CountryStatist ... current=83


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PostPosted: Feb 06, 2014 7:49 pm 
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KANUPP is still in operation in Pakistan....

http://www.iaea.org/PRIS/CountryStatist ... urrent=427


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PostPosted: Feb 06, 2014 10:12 pm 
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Kirk Sorensen wrote:
In the United States, probably Dresden 1 in 1978.

Maybe San Onofre 1 in 1992.

It really depends on how you define "Generation-1".


The quote was that Germany shutdown a reactor from the 50s after Fukushima. I surmised "humm, if it really was from the 50s, even a 1950s design, then it must be a Gen I reactor.". Trying to prove his words wrong with hard data.

Then the guy goes to say that they can't keep nukes online because they don't load follow.
Then says Germany decided to shutdown nuclear power 20 years ago, but the nuclear operators bribed the govt not to do that, and now they're just enforcing that decision (I argued the decision to shutdown nuclear after Fukushima was a knee jerk reaction).

My view is Gen II reactors are extremely safe, with the only serious accident being Fukushima. I don't consider Chernobyl Gen II by any measure, (water cooled nukes must have secondary containment to be Gen II). Three mile island is yet to have a single cancer death attributed to it, 35 years later, being an accident primarily for the financial losses (and the complex/costly cleanup), it was a mess inside the secondary containment off course.

Sorry for my "dilettante attitude". I'm trying to learn by posing my understanding of things, sometime I will say something stupid, but I love being corrected, what matters is learning.

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PostPosted: Feb 07, 2014 11:32 am 
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macpacheco wrote:
Then says Germany decided to shutdown nuclear power 20 years ago, but the nuclear operators bribed the govt not to do that


That is an amazingly skillful distortion of reality, befitting the renewable naivety that holds Germany in an iron grip.

What really happened was, the political climate against nuclear was (and still is) so hostile towards nuclear power, that the government got away with making the nuclear powerplants pay additional taxes.

That is not a bribe, it is the opposite: extortion.


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PostPosted: Feb 07, 2014 1:32 pm 
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The plants in former East Germany were closed over 20 years ago.....

Info from Wiki.....


http://en.wikipedia.org/wiki/Rheinsberg_Nuclear_Power_Plant
Rheinsberg Nuclear Power Station was the second nuclear reactor in East Germany after the Rossendorf Research Reactor, and the first nuclear power reactor in East Germany. It was built close to the city of Rheinsberg on the Stechlinsee. The power station was one of the first generation of demonstration power reactors.

Construction began 1956
Commission date October 11, 1966
Decommission date June 1, 1990
Reactors decom. 1 x 70 MW
Reactor type(s) VVER

The worst accident occurring at the plant during operation was classified as an INES 2-level event. A tear in tubing in a cooling circuit was noticed quickly and was repaired. In 2011, Deutschlandradio Kultur produced a radioplay about this event. "Rheinsberger Restlaufzeit" combines a fictional story with original sound clips of the former spokesman of the nuclear power plant as he reconstructs the events of 1973


http://en.wikipedia.org/wiki/Stendal_Nuclear_Power_Plant
The Stendal Nuclear Power Station (German: Kernkraftwerk Stendal) in East Germany, was to be the largest nuclear power station in Germany. After German reunification, and due to concerns about the Soviet design, construction was stopped and the power station was never completed. In the 1990s the three cooling towers which had been erected were demolished, and the area is an industrial estate today.
Altogether, it was planned to house 4 reactors at the site of the VVER-1000/320 type, which were some of the most modern and largest units of its time (1000 MWe).
Construction of unit 1 and 2 began in 1983 and units 3 and 4 remained in planning. Unit 1 was about 85% finished and unit 2 was about 15% finished.


http://en.wikipedia.org/wiki/Greifswald_Nuclear_Power_Plant
Greifswald nuclear power station, also known as Lubmin nuclear power station, was the largest nuclear power station in East Germany before closure shortly after the German reunification. The plants were of the VVER-440/V-230 type, which was the first generation of Soviet-designed plants. The plant is in Greifswald, in the state of Mecklenburg-Vorpommern.
Incidents
• December 7, 1975 - An electrician wanted to show his apprentice how to bridge electrical circuits. He decided to short-circuit the primary winding on one of the Unit 1 pumps by developing an arc following the edge of a wiring loom. The fire in the main trough destroyed the current supply and the control lines of five of the unit's six main coolant pumps. The fire was quickly brought under control by the fire-brigade and the pumps were temporarily repaired. After this near-disaster, fire protection within the power station was substantially strengthened and separate electrical lines for each pump were introduced. The incident was only made public in 1989. A few hours after the incident the IAEA was informed by Soviet authorities, which classified the accident under INES 4, later revised to INES 3.[3][4]
• November 24, 1989 - Three out of six cooling water pumps were switched off for a test. A fourth pump broke down and control of the reactor was lost; ten fuel elements were damaged and the reactor was close to melting down. The accident was reportedly attributed to sticky relay contacts

Reactor summary
Unit Type Net Power Total Power Start ofconstruction Finishconstruction Commercialoperation Shut down
Greifswald - 1 (KGR 1) WWER-440/230 408 MW 440 MW 01.03.1970 17.12.1973 12.07.1974 14.02.1990
Greifswald - 2 (KGR 2) WWER-440/230 408 MW 440 MW 01.03.1970 23.12.1974 16.04.1975 14.02.1990
Greifswald - 3 (KGR 3) WWER-440/230 408 MW 440 MW 01.04.1972 24.10.1977 01.05.1978 28.02.1990
Greifswald - 4 (KGR 4) WWER-440/230 408 MW 440 MW 01.04.1972 03.09.1979 01.11.1979 22.07.1990
Greifswald - 5 (KGR 5) WWER-440/213 408 MW 440 MW 01.12.1976 24.04.1989 01.11.1989 24.11.1989
Greifswald - 6 (KGR 6) WWER-440/213 408 MW 440 MW Finished, never operated - -
Greifswald - 7 (KGR 7) WWER-440/213 408 MW 440 MW Canceled - -
Greifswald - 8 (KGR 8 ) WWER-440/213 408 MW 440 MW Canceled


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