850 MW Combined Cycle Power Plant in Gebze

The main contractor of the power plant is Italian company ANSALDO ENERGIA s.p.a. (AEN) and EKON Industry Construction and Trade Inc. is the subcontractor of AEN for the scope of complete detail engineering, manufacturing, civil and structural steel works, supply and erection works of the plant. PROKON has provided structural, mechanical, electrical, piping and infrastructural (Facility Roads, Building and Road Drainage Infrastructure) design services and technical support at site under EKON’s scope. Underground Natural Gas and Underground Firewater Piping Design were also provided by PROKON.

The project covers 2 units of 94.3A gas turbines (each 294 MW), and generators set, 2 units of heat recovery steam generators with stack, 1 unit of steam turbine with a capacity of 280 MW. The foundations of Gas Turbine and Steam Turbine Structures are in reinforced concrete type where the superstructures are designed in steel structure type. There are also one electrical building for each unit adjacent to the turbine structures and there is an individual electrical building within each heat recovery steam generator structure. Moreover, the project includes one Air-Cooled Condenser for condensing of the steam and one Fin Fan Cooler for closed cooling system.

The supply of heat recovery steam generator is in the scope of STF s.p.a (Italy) where the supply of Air-Cooled Condenser and Fin Fan Cooler are in the scope of SPIG s.p.a (Italy) and also the supply of gas & steam turbines are in the scope of AEN companies. The non-pressure parts of HRSGs are manufactured in EKON’s fabrication facilities. (The switchyard is designed as indoor switchyard and it is in the scope of SIEMENS.

In addition to the Power Island mentioned above; pipe racks, auxiliary boiler plant, water treatment plants and tanks, auxiliary electrical buildings, natural gas RMS-A station, administration building, underground galleries, pump stations, pump foundations, transformer foundations etc. structures are also defined in the scope of EKON.

Cranes & hoists, atmospheric tanks, fire fighting systems, heating ventilating and air conditioning system (HVAC), natural gas connection system to main pipeline (HOT-TAP) and Gas Pressure Reducing Station are supplied by EKON on EPC turn-key basis.