芬兰Olkiluoto核电站3号机组再延期运行

2月11日，芬兰公用事业公司TVO公司表示Olkiluoto核电站3号机组可能要到2016年才能开始运行。

Finnish utility Teollisuuden Voima Oyj (TVO) said that it is "preparing for the possibility" that the third unit at Olkiluoto may not start operating until 2016. Last year it said that the EPR had been delayed beyond 2014.

TVO said that, based on recent progress reports from the Areva-Siemens consortium constructing the unit, "it is preparing for the possibility that the start of the regular electricity production of Olkiluoto 3 nuclear power plant unit may be postponed until year 2016."

Construction of Olkiluoto 3 - the first-of-a-kind EPR reactor - started in May 2005, with completion originally scheduled for 2009. However, the project has suffered several setbacks. TVO announced in December 2011 that it anticipated the 1600 MWe plant to begin commercial operation in August 2014, some five years later than originally planned. In July 2012, the company declared that the plant unit "will not be ready for regular electricity production in 2014." Noting that Areva-Siemens are constructing the 1600 MWe plant under a fixed-price turnkey contract and are therefore responsible for the time schedule of the project, it requested the supplier provide an updated schedule and completion date.

TVO""s senior vice president of the Olkiluoto 3 project Jouni Silvennoinen said in a statement today, "We have not yet received an adequate schedule update." He added, "Additionally, the instrumentation and control (I&C) design has not proceeded as planned, and therefore the plant completion may be further delayed."

TVO said that although it "is not pleased with the situation and repeated challenges with the project scheduling," work is proceeding at the unit. The civil construction works of Olkiluoto 3 have mainly been completed and the major components of the nuclear island - such as the reactor pressure vessel, pressurizer and steam generators - have all been installed. Welding work of the primary coolant circuit piping has also been completed. TVO noted that some 75% of the installation works have now been completed.

Areva responded to TVO""s claims by saying, "Over the course of the past year, the consortium has asked for significantly more active cooperation from TVO in order to obtain the final approval of the detailed I&C architecture." It added, "The Areva-Siemens consortium regrets that TVO continues to not fulfil its obligations to allow for the project to advance properly."

However, TVO stated that it continues to provide support to the Areva-Siemens consortium "to complete the project as soon as possible."

Areva-Siemens filed a request for arbitration with the International Chamber of Commerce in December 2008 concerning the delay of Olkiluoto and the related costs. Its latest monetary claim, including indirect items and interest, is some €1.9 billion ($2.3 billion). TVO has made a counterclaim which currently amounts to €1.4 billion ($1.7 billion).

Self-sufficiency

TVO""s announcement of a further potential delay in the Olkiluoto 3 project comes just days after the Finnish government published an updated strategy for meeting its energy and climate change targets.

In it, the Ministry of Employment and the Economy notes that Finland is still not self-sufficient in electricity generation and is heavily dependent on electricity imports during the winter. "This situation will persist until the point when the Olkiluoto 3 plant unit starts," it noted.

However, the ministry said that the country would not be fully self-sufficient in electricity production until the 2020s when both the planned fourth unit at Olkiluoto and Fennovoima""s planned plant are in operation and generation from renewable sources has increased.