This Boiler house provides the NPP with steam load during start-up, repair, commissioning, and in the event of emergency shutdowns.

The Leningrad NPP design specifies for the start-up/standby boiler house as a production facility and it is designed exclusively to cover the steam demand.  The steam produced by the start-up/standby boiler house heats deaerator, auxiliary steam header and pressurizes turbine prior to delivery of the reactor plant steam during NPP Power Unit 1 start-up or repair.

The company employees, together with the manufacturer representatives are expected to put into operation four electrode boilers. Each of them weighs 11 tons, and has a steam generating capacity of 20 tons per hour.

In the process of trial run water is supplied to the boilers, all systems are activated, and water circulation starts. Then some chemicals are supplied to the system in order to check  the water chemical composition. The water must contain some amount of salt to prevent deposits on the boiler walls  Provided that all parameters are satisfactory, 10 kV is automatically supplied and the boiler starts operation.

After that pressure buildup takes place in the start-up header. It opens the gate and the steam is delivered to the steam line running on the trestle to the turbine. During the trial run the steam is planned to be discharged through the open end of the steam line.


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.