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Europe’s largest nuclear reactor enters service in Finland


Hours after Germany closed out its atomic era by turning off its last three nuclear reactors, the largest single reactor in Europe entered regular production in Finland, its operator said Sunday.
The next-generation Olkiluoto 3, now producing around 14 percent of the country’s electricity, is expected to remain operational for “at least the next 60 years”, according to the site’s operator TVO.
Germany meanwhile officially ended decades of nuclear energy use by turning off its last three nuclear reactors on Saturday.
The Isar 2 reactor in the southeast of the country, the Neckarwestheim facility in the southwest and Emsland in the northwest were disconnected from the electricity network before midnight.
Europe’s largest economy had been looking to leave behind nuclear power since 2002, but the phase-out was accelerated by former chancellor Angela Merkel in 2011 after the meltdown at the Fukushima nuclear plant in Japan.
In Finland, the European pressurised water reactor (EPR) was meanwhile put into regular service some 18 years after construction on the reactor began, and 14 years after it was originally scheduled to go into commercial production.

After it first reached full power in September last year, it was supposed to enter commercial production in December, but the start was pushed back several times during its testing phase.
– ‘Trump card’ –
Built by the French-led Areva-Siemens consortium, the reactor was first started up in December 2021 and connected to the Finnish power grid in March last year.
“Test production has been completed and regular electricity production started today,” TVO said. “From now on, about 30 percent of Finnish electricity is produced in Olkiluoto,” which already had two reactors.
With a capacity of generating 1,600 megawatts, Olkiluoto 3 is the single largest nuclear reactor in Europe, while Ukraine’s Zaporizhzhia plant, with its six reactors, is the largest nuclear plant.
Finland had been hoping to rely on the new reactor for its electricity needs earlier this winter, given fears of energy shortages after Russia, a major supplier to Europe, invaded Ukraine and cut off gas exports in response to Western sanctions.
Jarmo Tanhua, CEO of TVO, in a statement called the “environmentally friendly electricity production” one of Finland’s “top trump cards”.
– Safety vs climate –
The EPR was designed to relaunch the European nuclear industry after the Chernobyl catastrophe of 1986, and was touted as offering higher power and better safety.
But several EPR projects have been plagued by delays and billions of dollars in cost overruns.
At the end of last year, France’s state-owned energy group EDF had to announce another six-month delay for a new reactor being built at Flamanville, in northwest France, pushing back its projected start to mid-2024.
( Source AFP)


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