Construction under way at the Akkuyu nuclear power plant
Photo by: Akkuyu Nuclear/Rosatom
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
Turbine installation was completed at Unit 1 in December 2024. At the forthcoming stage, a set of prelaunch tests, including tests of the sealed enclosures system and safety systems, will be conducted in the turbine hall of Akkuyu NPP Unit 1. After that, the turbine will be ready for comprehensive prelaunch operations.
In early December, the main components of the reactor cavity – a dry reactor shielding and a support truss – were installed into the design position at the construction section of the reactor compartment of Akkuyu NPP Power Unit No 4.
The dry reactor shielding ensures reliable operation of the NPP, even under extreme loads, such as an earthquake of nine points on the MSK-64 scale. The support truss is designed to fasten the reactor vessel in the concrete cavity, and reliably protects the reactor against external impacts.
Works on pre-assembly, cavity concreting and the installation of measurement channels on Unit 4 are concluding.
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. 