Showing posts with label Belgium. Show all posts
Showing posts with label Belgium. Show all posts

Sunday, May 19, 2013

Belgium's Two Nuclear Reactors with Cracks Are Good to Restart, Minister Says Government Does Not Have Power To Interfere with "Independent" Regulator and Operator


These days, things nuclear look almost serene compared to the (soap) scums in the political world (here and here in Japan, here and here and here in the US, for some examples).

But that's probably because political scums are used to mask problems that cannot be fixed.

Belgium, having to rely on nuclear power for more than 50% of electricity, has declared two reactors safe to operate whose Reactor Pressure Vessels were found with thousands of small cracks in August 2012 (see my post for one of them).

Why? Because there is no way to fix the cracks now (besides, the company that made the vessels went out of business), and Belgium needs electricity.

From Reuters (5/17/2013):

UPDATE 1-Belgian regulator clears GDF to restart nuclear reactors

* A third of Belgium's nuclear capacity closed since last yr

* Reactors should restart in 2-3 weeks (Recasts with regulator confirmation)

By Philip Blenkinsop

BRUSSELS, May 17 (Reuters) - Belgium's nuclear safety regulator has given approval for GDF Suez to restart two nuclear reactors closed last year over safety concerns, it said in a report on Friday.

"The Federal Agency for Nuclear Control considers that the Doel 3 and Tihange 2 reactor units can be restarted safely," the report said.

It added that all of the safety concerns had been resolved satisfactorily.

Belgium halted the 1,006-megawatt (MW) Doel 3 reactor in August last year after indications of cracks were discovered on the core tank during ultrasound checks.

A month later, it found similar flaws on the 1,008-MW Tihange 2 after it tested the tank during a routine stoppage, leaving Belgium without a third of its nuclear power generation capacity.

It will take two to three weeks to restart the reactors, a spokeswoman for GDF Suez's Belgian division Electrabel said following the decision.


According to Asahi Shinbun who reported the news in Japan, Doel 3 reactor has over 8,000 small cracks, and Tihange 2 has over 2,000. They conducted the tolerance test to ensure safety, according to Asahi.

Greenpeace is vowed to sue the Belgium government, according to Euronews (5/17/2013):

Greenpeace are threatening to sue the Belgian government. The leading environmental activist network is threatening legal action after Belgium’s nuclear safety regulator gave the green light to GDF Suez to go ahead and restart two nuclear reactors.

However, during a news conference, the Belgian Interior Minister, Joelle Milquet claimed that the government does not have the power to block the move.

“The independent regulator provides technical advice to an operator on the restarting of its operations. We do not have the ability to interfere in the decision, because it is an independent operator,” he said.

Last year two nuclear reactors were closed after safety concerns were flagged up in their their tanks, during an ultrasound check.

Greenpeace says it is the government’s responsibility to guarantee the safety of the Belgian people.

“We will summon the government for the lack of decent emergency plan and at the same time they increase the risks of a nuclear accident,” says Greenpeace Belgium energy campaigner Eloi Glorieux.

So while a legal battle may be brewing reactors, Doel 3 and Tihange 2 could be back up and running within 3 weeks, now that Belgium’s nuclear watchdog claims all issues have been resolved.


What does the minister mean, the government does not have the power to block the move? Ensuring the safety of things like nuclear reactors is one of the few remaining good things that a government should do.

In contrast, Switzerland's Mühleberg Nuclear Power Plant has a huge crack in the core shroud inside the Reactor Pressure Vessel, and the license to operate is set to be withdrawn by the court order in June this year.

Monday, August 13, 2012

Cracked Belgian nuclear reactor to remain closed, "Repairing the crack is practically impossible", says Belgium's nuclear safety agency chief


Doel Nuclear Power Station has 4 reactors, all pressurized-water reactors.

The company that made the vessels had gone out of business.

(I'm assuming the "steel tank containing a nuclear reactor" is the Reactor Pressure Vessel and not the Containment Vessel, but not quite sure from reading the article. If the readers in Europe know, please leave a comment in the comment section.)

(UPDATE: It is the Reactor Pressure Vessel. Thank you readers.)

From France 24 News citing AP (8/10/2012):

A crack discovered in a steel tank containing a nuclear reactor at a Belgian power plant will likely keep the station closed, the country’s nuclear safety agency said on Friday. Repairing the crack is "practically impossible," the agency said.

The head of Belgium's federal agency for nuclear safety AFCN said on Friday he was "sceptical" that an ageing reactor closed over fears of cracks could be restarted.

"I'm fairly sceptical for the moment," Willy de Roovere told RTBF public radio, even if "the possibility remains that I am wrong."

According to French-language daily Le Soir, a crack of between 15 and 20 millimetres (0.6 and 0.8 inches) was discovered during a test in June. There has been no denial of this report.

According to the agency, repairs are "practically impossible" and are "not an option" for fear of creating new tensions "which we must avoid at all costs."

Installing a replacement meanwhile has never been attempted anywhere because of the problem of high radiation levels.

The AFCN revealed on Wednesday that the Doel 3 reactor, located 25 kilometres (20 miles) north of Antwerp, would remain closed at least until August 31 after the discovery of possible cracks in the protective vessel surrounding the core during routine June testing.

The agency is also mulling the permanent closure "in the worst case" of a second reactor in the country's south near Liege.

The tests showed "faults in the steel base material" on which the reactor vessel is mounted, the AFCN said.

The Dutch firm, Rotterdam Drydocks, that made the vessels is out of business, which has amplified concerns about others it delivered in Europe and in the Americas.

Spain has indicated it has two reactors in the same bracket, Switzerland and Sweden one each.

The firm supplied one to the Netherlands, but had not manufactured it. The government in The Hague said it has still to decide whether to test its nuclear facilities.

The German government said reactors supplied by the defunct company were no longer in service.

Representatives of nuclear safety bodies from all the countries involved will meet in Brussels on August 16 to "exchange information," the AFCN said.