The project at Unit 6 involved upgrading of a previously gas fired steam turbine power plant unit to a combined cycle power plant (CCPP), which increased the installed capacity of the plant from 300 MW to 800 MW.

The customer and plant operator is the Russian power provider OGK-2, a subsidiary of Gazprom Energo Holding.

The power plant site consisted of six gas-fired steam turbine power units with an efficiency of less than 40%, where one of these units has now been converted into a modern CCPP within the scope of a repowering project.

Siemens supplied two SGT5-4000F gas turbines, two SGen5-1000A generators and the SPPA-T3000 instrumentation and control system and reused the existing steam turbines after they were adapted to the new steam parameters.