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

Location
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
Construction has been completed on the concreting of the dome of the outer containment of the reactor building of Unit 1. Two tower cranes, six concreting booms, and 34 mixer trucks were involved in the work.

Concreting of the outer containment dome was accomplished in four stages and took 104 days. A total of 3 511 m³ of high-strength self-compacting concrete mix was poured into this part of the outer containment.

“The outer containment is one of the main safety systems of the power unit. The robust reinforced concrete structure will reliably protect the reactor plant from external impacts,” Akkuyu Nuclear JSC CEO Sergei Butсkikh explains.

The outer containment of the reactor building is made of reinforced concrete and is designed to withstand the strongest natural impacts, including earthquakes up to magnitude 9 (MSK-64 scale) and hurricanes up to 60 m/s.

Reactor buildings of modern Russian-designed power units with VVER-1200 reactors are equipped with a system of double (outer and inner) containments. They guarantee a high level of safety of the nuclear plant. Inside the outer containment there is an inner containment. It ensures air-tightness of the reactor plant location area and also serves as a support for pipelines and polar crane.

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 solid radioactive waste).

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