Project Description

The new Severnaya 400 MW Combined Cycle Power Plant is located at the Caspian Sea, north of Baku, the capital of Azerbaijan. With its modern technology it will eventually replace three old units, which are technically obsolete.

Between October and December 2001, VSL was engaged on site and installed 12 HRSG boiler modules, one MHI gas turbine and one ABB generator stator. The handling and placing was done in two phases.

Phase I: Installation of the boiler modules through incremental lifting. VSL installed 28 strand lifting units of up to 100 t capacity. They were arranged in 4 lines of 7 units on top of the permanent steel support of the boiler. Due to a stagewise assembly method, the total lifting load increase gradually and reached finally 1,700 t. 

Phase II: VSL placed the MHI gas turbine and the ABB generator stator which weighed around 350 t each. VSL succeeded to convince the client to use an alternative solution using components of one of its own steel lifting gantries. This method had technical and economical advantages. Modifications had to be done on this gantry to match the different dimensions of the gas turbine and the generator stator.

VSL won the contract because of its ability to provide within a short time a detail design, based on the economical alternative together with all  documents required for the approval by the main contractor.

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