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Forsmark Nuclear Power Plant is a nuclear power plant in Sweden, and also the site of the Swedish Final repository for radioactive operational waste. It is operated by a subsidiary of Vattenfall.

Contents 1 Reactors 2 Waste disposal 3 July 2006 incident 4 February 2007 shutdown 5 April 1986 6 See also 7 External links 8 Sources

Forsmark NPP has three Boiling water reactors:

• Unit 1 (968 net MWe) was first connected to the grid on 5 June, 1980, and commenced commercial operation on 10 December, 1980. It has two turbo alternators.
• Unit 2 (964 net MWe) was first grid connected on 15 December, 1980 and commenced commercial operation on 7 July, 1981. It is a twin of Unit 1.
• Unit 3 (1,155 net MWe) was first grid connected on 3 March, 1985 and commenced commercial operation on 21 August, 1985. It is a later design with one turbo alternator.

Forsmark is the proposed site for the long-term burial of all spent fuel from Swedish nuclear power reactors, using the KBS-3 process. The new site will be located next to the already existing final repository for radioactive operational waste, but the two will not be connected with each other.

On 25 July 2006 one reactor was shut down after an electrical fault.^[1][2] According to the Swedish Nuclear Power Inspection authority SKI the incident was rated 2 on the International Nuclear Event Scale. According to Lars-Olov Höglund, a former construction chief at Vattenfall, it is the most serious nuclear incident in the world since the Chernobyl disaster and it was pure luck that prevented a meltdown.^[3] Both the SKI and the safety chief of Forsmark power plant disagree with that opinion and state that the incident was serious but the description provided by Höglund was incorrect and there was no risk of a meltdown.^[4] However SKI also writes about the failing safety system that "finding out that safety functions proved to be linked together in a delicate way is according to SKI extremely serious".^[5]

On February 3, two units at Forsmark were shut down to inspect a rubber seal in one of the safety systems. On Forsmark 1 this seal needs to be replaced, a job that will take approximately one month. Unit 2 was cleared by the regulator SKI and is free to restart.

In January an internal report made by a few employees at Forsmark who were concerned over a "degrading safety culture" was leaked to media who ran an extensive story on it. In the storm following the report the Forsmark CEO choose to resign. Forsmark was already under way to implement a 60-point program designed to improve safety culture, designed shortly after the event in July 2006.

On April 27, 1986 unusually high levels of radiation were detected in workers' clothing at this plant, prompting concerns of a radiation leak. No leak was found, however, and the radiation was determined to have originated from Chernobyl, whose reactor had exploded the previous day. Chernobyl is approximately 1,100 km from this powerplant.

• Chernobyl disaster
• International Nuclear Events Scale
• List of civilian radiation accidents
• List of civilian nuclear accidents
• List of military nuclear accidents
• List of nuclear reactors
• Loss of coolant accident
• Mayak
• Nuclear and radiation accidents
• Nuclear contamination
• Nuclear meltdown
• Nuclear safety
• Nuclear power
• Radiation
• Radioactive contamination
• Radioactive waste
• Three Mile Island accident
• United States military nuclear incident terminology
• Windscale fire

• Forsmark NPP home page (English version).
• Analysis of the 2006 event.

1. ^ Radio Sweden: Investigation into ”serious” fault at power station
2. ^ European Atomic Forum: Forsmark incident rated as a Level 2...
3. ^ The Local: Nuclear plant 'could have gone into meltdown'
4. ^ Sveriges Television: SKI: Ingen risk för härdsmälta (Swedish)
5. ^ SKI: SKI reviews the final disturbance analysis from Forsmark

Coordinates: 60°24′12″N, 18°10′0″E