Akkuyu nuclear power plant project, Türkiye – update

Airlock gate at the Akkuyu NPPAkkuyu Nuclear

Photo by Akkuyu Nuclear

10th May 2024

By: Sheila Barradas

Creamer Media Research Coordinator & Senior Deputy Editor


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Name of the Project
Akkuyu nuclear power plant (NPP) project.

Mersin, Türkiye.

Project Owner/s
Akkuyu Nuclear, comprising Inter RAO UES JSC, Rosenergoatom JSC, Atomtechenergo JSC, Atomenergoremont JSC and Rusatom Energy International JSC.

Project Description
The Akkuyu NPP will be based on an NPP-2006 serial project. The 4 800 MWe plant will comprise four VVER1200 reactors and is expected to meet about 10% of Türkiye’s electricity needs.

The power unit includes a reactor plant and a turbine plant.

The primary circuit is radioactive and comprises a reactor, four reactor coolant loops, four reactor coolant pumps, heating parts of four steam generators and one steam pressuriser.

The secondary circuit is not radioactive. It comprises steam generators; fresh steam conduits; one turbine unit comprising a turbine plant and a turbine generator; condensate pumps; a system of low-pressure regenerative heaters; a turbine condensate system; deaerators; a feedwater system, including feedwater pumps; and a system of high-pressure regenerative heaters.

The turbine is equipped with a condensing unit and regenerative installation for heating the feedwater and separators, with unregulated steam extraction for the NPP’s auxiliary needs and heating chemically treated water additives in the circuit.

Capital Expenditure
The project is estimated at $20-billion.

Planned Start/End Date
The aim is for the first unit of the plant to start supplying Türkiye's energy system in 2025, and for all four units to be operational by the end of 2028.

Latest Developments
The first airlock gateway has been installed. The 7-m-diameter, 14-m-long cylindrical chamber has an airlock system that will allow for the delivery of equipment for the operation and maintenance of the reactor compartment such as the upper reactor unit, reactor coolant pump, primary circuit pipelines and steam generators.

Once the unit is in operation, used and fresh fuel, as well as other equipment, can pass through it, with the doors at either end able to maintain an airlock system to ensure the reactor compartment remains sealed.

The installation of horizontal moisture separator reheaters (MSR) has been completed in the turbine hall of Akkuyu NPP Unit 1. The equipment is a part of the NPP steam turbine plant auxiliary systems. MSRs are used to maintain the parameters of temperature and humidity of the steam, which rotates the blades of the turbine rotors.

Key Contracts, Suppliers and Consultants
Rosatom (construction of VVER-1200 reactors under a build, own, operate model); Titan2 Ic İçtaş İnşaat Anonim Şirketİ (construction contractor); GE Steam Power and AEM Technology, a joint venture between AtomEnergoMash and General Electric, or GE (design and supply of the equipment and systems for the whole conventional island); JSC Tyazhmash (core melt trap); and Nukem Technologies and NIKIMT-Atomstroy JSC (supply of the equipment for compacting SRW).

Contact Details for Project Information
Akkuyu NPP JSC, tel +90 312 442 60 00, fax +90 312 442 60 16 or email

Edited by Creamer Media Reporter




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