One of the key events of the year happened at Unit 2 of Leningrad Phase II which is under construction. Erection of the inner containment of the reactor has been completed. The last tier was concreted up to 67 meters in height. Now, the builders will be able to start constructing the highest section of the dome up to 68.5 meters. 

The inner containment is the NPP localizing safety system. It is a pre-stressed reinforced concrete construction consisting of the cylindrical part and semi-spherical dome. To build the inner containment, 11,000 cubic meters of concrete and 3,000 tons of rebars were needed. Thickness of reinforced cast-in-place concrete of the inner containment was 1,200 mm that corresponds to the design requirements.