28.08.2019  The Kursk NPP Information and Public Relations Department

The Kursk NPP-2 construction team has completed concreting of the 2nd power block’s power generation building foundation

Concreting of the 2nd power block’s normal power generation building foundation has been successfully completed at the Kursk NPP-2 construction site.

The optimized station project housing VVER-TOI reactors pre-supposes that the normal operation power generation building is placed between the reactor building and the turbine building, which reduces the occupied area and the length of communication networks. The building will be equipped in such a way that it can supply energy to the whole second power block.

‘The normal operation power generation building is one of the ‘nuclear island’ structures. We can’t meet our own needs for voltage supply without it and, hence, can’t deploy the pre-commissioning activities at the power block’s equipment’, Alexey Volnov, the chief construction engineer at the Kursk NPP-2, explained.

The concreting activities were prefaced by the preliminary assembly of the formwork and the reinforced structures with the total weight of around 70 tons, where the AO NIKIMT-Atomstroy Department at the Kursk NPP placed over 1,600 cubic meters of concrete. It is now being solidified.

The team of 107 specialists working in three shifts is now getting ready for the next stage, that is, the assembly of the wall resting boundaries.

The Kursk NPP-2 is a replacement power plant encompassing 2 blocks with the capacity of 1255 megawatt each. The plant is constructed following the VVER-TOI project (general designer – AO Atomenergoproyekt (a part of the ASE Group), general contractor – ASE Group). The Kursk NPP-2 replacement power blocks No.1 and No.2 are being constructed based on the cutting-edge VVER-TOI (Water-Water Energy Reactor Universal Optimized Digital) project. This is a new design created by Russian specialists based on the VVER-1200 NPP technical solutions. These 3+ generation power blocks possess improved technical and economic parameters: compared to the previous-generation power blocks (VVER-1000), the capacity of each has been increased by 25%, up to 1255 megawatt. The major equipment’s life span has doubled. Compared to other power blocks, the VVER-TOI projects stipulate considerable reduction of construction and operational costs as well as the time lines. This design also combines passive and active safety systems. In particular, VVER-TOI includes a core melt localization device as one of the means of controlling accidents outside of the design. This is a unique Russian safety technology that guarantees safety management.

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