Specialists of JSC MSU-90 continue hydraulic tests of the spent fuel pool located in the reactor building of the first Power Unit of Leningrad NPP under construction.

The pool is located between level mark +8,000 and +26,300, its volume is 1800 m3. In future spent nuclear fuel will be temporarily stored here under thick layer of borated water.

Pool walls are made of concrete. They are shingled by 4-mm-thick stainless steel. Specialists of JSC MSU-90 are gradually filling the pool with water. Then the pool will be drained and specialists will start installation of racks and the failed fuel assembly detection system in the spent fuel pool. After that, commissioning works to install simulators of fuel rod assemblies into the canals of BV racks by the refueling machine will commence.


The Holding “Titan-2” is the largest in the North-West group of companies, erecting the most important objects of the nuclear industry and energy. The organization performs a full range of construction and installation works from engineering to commissioning.

The Holding “Titan-2” is one of the main contractors for the construction of power units No. 1 and No. 2 of the Leningradskaya NPP-2. Main organizations of the company perform 30% of general construction and 80% of installation works on the site. Specialists of the holding are engaged on the objects of the Leningradskaya NPP-2 first and second power units. The works are being performed in the buildings of the reactor, turbine, electricity, water, heating system and other structures of power units.