Teollisuuden Voima Oyj (TVO), owner and operator of the Olkiluoto nuclear power plant in Finland, has resumed Olkiluoto-3’s test production phase, following completion of maintenance and repair work at the new reactor’s turbine island, the company announced this week.

TVO had announced in June a delay to the unit’s commercial start of some three months—from September to December—after material that had detached from the steam guide plates was found in the turbine’s steam reheater in May, necessitating repair work and a halt to testing.

The U.K. government has granted a development consent order (DCO) for EDF Energy’s proposed Sizewell C plant near Leiston in Suffolk, moving the new nuclear build project closer to a reality.

Nuclear New Build (NBB) Generation Company, an EDF Energy subsidiary, submitted the DCO application to the government’s Planning Inspectorate in May 2020, setting out the range of measures the project would implement to mitigate construction effects and maximize community benefits. The Planning Inspectorate accepted the application in June 2020 and completed its examination in October 2021. Recommendations were made to the secretary of state for business, energy, and industrial strategy this February.

The prospects for new nuclear energy construction in the Western world is the subject of a recent The Economist article, “Energy security gives climate-friendly nuclear-power plants a new appeal.” The article also explores the difficulties that EDF Energy has been experiencing in constructing its EPRs in Europe.

Électricité de France has signed cooperation agreements with five Polish companies as it continues its efforts to be named the large-reactor supplier for Poland’s incipient nuclear power program.

Polish firms Polimex Mostostal, Sefako, Tele-Fonika Kable, Uniserv, and ZRE Katowice inked the pacts at the fifth Polish-French Nuclear Industry Day in Ołtarzew, Poland. According to EDF, the event was held to foster collaboration between Polish and French companies in support of the utility giant’s offer to deliver four to six EPRs for the Polish program.

Teollisuuden Voima Oyj (TVO), owner and operator of Finland’s Olkiluoto nuclear power plant, has announced a further delay to the start of regular electricity generation at Unit 3. Commercial operation is now projected to begin this December, rather than the previously announced September. A report from Reuters puts the date at December 10.

According to TVO, material that had detached from the steam guide plates was found in the turbine’s steam reheater last month, requiring inspection and repair work.

The target date for the start of electricity generation at Hinkley Point C’s Unit 1 reactor has been moved back to June 2027, following the completion of a schedule and cost review of the new nuclear build project, EDF announced last week.

While the review considered the main aspects of the project to construct two 1,630-MWe EPRs in Somerset, England, the schedule and cost of electromechanical works and of final testing were not examined, according to the utility.

Europe’s first EPR, Unit 3 at Finland’s Olkiluoto nuclear power plant, was connected to the nation’s grid on March 12, Teollisuuden Voima Oyj (TVO), the facility’s owner and operator, has announced.

Olkiluoto-3 is also the first new Finnish reactor in four decades, and one of only three new reactors in Europe in the past 15 years. (Romania’s Cernavoda-2 began supplying electricity to the grid in August 2007, and Belarus’s Belarusian-1 in November 2020.)

The Office for Nuclear Regulation (ONR) and the Environment Agency (EA) have found the UK HPR1000 reactor suitable for construction in the United Kingdom, the regulators jointly announced last week.

Macron

As part of its drive for carbon neutrality by 2050, France will build at least six new nuclear reactors in the coming decades, according to a February 10 article from Reuters. "What our country needs, and the conditions are there, is the rebirth of France's nuclear industry," French president Emmanuel Macron said as he announced France’s new nuclear strategy.

Macron also said that he wanted to extend the life spans of France’s existing nuclear plants.

The price tag: The six new plants would be built and operated by state-controlled energy provider EDF, which has estimated the cost of those plants total at about 50 billion euros (about $57 billion), depending on financing conditions, according to the article.

The first new reactor, an evolution of the European Pressurized Reactor (EPR), would come on line by 2035, Macron said. The article added that the country would embark on a study to determine whether a further eight reactors beyond the initial six would be needed.

The United Kingdom’s Office for Nuclear Regulation (ONR) has granted permission for the start of bulk mechanical, electrical, and HVAC component installation work at the Hinkley Point C site in Somerset, England, where two 1,630-MWe EPRs are under construction. Thus far, most of the activity at Hinkley Point C has been in the field of civil construction.

This new phase, according to ONR, will require a workforce of up to 4,000 during peak times, including welders, pipe fitters, and electricians. The work is to be accomplished over a three-year period, with NNB Genco—the EDF Energy subsidiary set up in 2009 to build and operate Hinkley Point C—teaming up with four suppliers: Balfour Beatty Bailey, Doosan, Cavendish, and Altrad.

France’s Flamanville-3 project, plagued by schedule setbacks and cost overruns for well over a decade (construction of the unit commenced in December 2007), will be delayed a bit longer and cost a bit more.

Électricité de France announced yesterday that fuel loading at the 1,600-MWe EPR has been pushed back from the end of this year to the second quarter of 2023. The delay increases the project’s cost at completion from €12.4 billion (about $14.2 billion) to €12.7 billion (about $14.5 billion), more than four times the initial estimate of €3.3 billion, according to EDF.

The long-delayed Unit 3 at Finland’s Olkiluoto nuclear power plant has achieved initial criticality, plant owner and operator Teollisuuden Voima Oyj (TVO) announced this morning. The reactor, a 1600-MWe Generation III+ EPR supplied by Framatome, started up at 3:22 a.m. local time.

The Thursday morning executive session at last week’s 2021 ANS Winter Meeting and Technology Expo brought together a group of influential nuclear-policy experts from the United States and abroad to discuss the roles nuclear can play in smoothing the pathway to net-zero emissions by 2050. Specific topics explored included the Clean Energy Ministerial (CEM) and its Nuclear Innovation Clean Energy (NICE) Future initiative, as well as last month’s COP26 climate conference in Glasgow. The session was moderated by Leah Parks, a Nuclear Regulatory Commission risk analyst and 2020 ANS Presidential Citation awardee.

A recent study of life cycle carbon emissions at the United Kingdom’s Hinkley Point C nuclear plant finds that the facility, now under construction in Somerset, England, is likely to produce less CO₂ over its lifetime than either solar or wind power.

According to the 70-page analysis—prepared by environmental consultancy Ricardo Energy & Environment for NNB Generation Company HPC Limited, the holding company for the Hinkley Point project—lifetime emissions from Hinkley Point C are likely to be about 5.5g CO₂e per kWh. That amount also holds for the proposed Sizewell C plant, the study concludes. (The two 1,630-MWe EPRs at Hinkley Point C are currently scheduled to begin commercial operation in 2026 and 2027.)

A cutaway view of an EPR. (Image: EDF)

French utility giant Électricité de France has thrown its chapeau into the ring to be the large-reactor supplier for Poland’s embryonic nuclear power program, joining U.S.-based Westinghouse Electric Company, which has made concerted efforts this year to convince Poland to choose its AP1000 technology.

On Tuesday, EDF submitted a nonbinding preliminary offer to the Polish government for the construction of four to six EPR reactors, representing a total installed capacity of 6.6 to 9.9 GWe across two to three sites.

The pitch: The offer “covers all key parameters of the program, such as plant configuration, industrial scheme, plans for the development of the local supply chain, cost estimate, and schedule,” EDF said in a press release, adding that its proposal “aims at setting the principles for a Polish-French strategic partnership framework in support of Poland’s ambitious energy transition plan, aligned with the European carbon neutrality target.”

Unit 1 at the Taishan nuclear power plant in China has been shut down to examine fuel rod damage and conduct maintenance, China General Nuclear Power Group (CGN) reported last Friday.

If Taishan-1 were operating in France, Électricité de France would shut down the reactor in order to assess the situation in progress and stop its development, according to a July 22 press release from EDF. The 1,660-MWe French-designed EPR—the recent subject of sensational press coverage of fuel rod failures—operates in China’s Guangdong Province.

The facts, once known, were uncomplicated. At Taishan-1 in China—the first Framatome EPR to be commissioned—operators detected an increase of fission product gases within the primary coolant circuit sometime after the reactor’s first refueling outage in October 2020. The cladding on a handful of the more than 60,000 fuel rods in the reactor had been breached, posing an operational issue—but not a public safety issue—for the plant.

A new video, Finland Might Have Solved Nuclear Power’s Biggest Problem, debuted on YouTube this morning and has been seen already by a large number of viewers. The video takes a look at Finland’s efforts to lessen its reliance on foreign energy and meet its goal of carbon neutrality by 2035 with nuclear power, as well as to provide a solution to the problem of spent nuclear fuel.