As the result pipeline capacity was doubled. Subsea section of the pipeline starts from Portovaya compressor station which situated near Vyborg, Leningradskaya Region. First gas pumping units of the station were commissioned in 2011. At present six Rolls-Royce Trent 60 gas pumping units each rated at 52 MW and two Rolls-Royce RB211 gas pumping units each rated at 27 MW are in operation on the compressor station. Total output of Portovaya station is 366 MW. General designer of the station is Giprospetsgas JSC, general contractor is Stroygasconsulting Company. The station is equipped with seven GP-1500VK-02M gas engine power plants supplied by Zvezda-Energetika JSC.