The last set of four steam generators for Akkuyu NPP Unit 4 arrived on site on 3 June 2026 after a sea voyage of some 3,000 km, completing delivery of the reactor vessels and all 16 steam generators for the four units.
The final set of four steam generators manufactured for Unit 4 of the Akkuyu Nuclear Power Plant arrived at the plant site on 3 June 2026. According to the official announcement by Akkuyu Nuclear JSC, the equipment, produced at the Atommash plant in Volgodonsk, was transported to Türkiye over a sea route of approximately 3,000 kilometres. Source
340 tonnes each, more than 140 kilometres of tubing
Each steam generator weighs 340 tonnes, is about 14 metres long and has a diameter of more than 4 metres. The lower part of the device houses a heat-exchange surface made up of 11,000 tubes with a total tube length exceeding 140 kilometres.
Key figures of the delivery:
- Delivery date: 3 June 2026
- Equipment: 4 steam generators (the final set for Unit 4)
- Unit weight: 340 tonnes; length: about 14 metres; diameter: more than 4 metres
- Heat-exchange surface: 11,000 tubes with a total length of over 140 kilometres
- Route: Atommash (Volgodonsk) to Akkuyu, roughly 3,000 kilometres by sea
Main equipment deliveries completed for all four units
As reported by NucNet, this delivery completed the shipment of the main reactor plant equipment for all four units, including the reactor vessels and a total of 16 steam generators. Rosatom manufactured more than 7,000 tonnes of equipment in total for the reactor compartments of the four units. Source
World Nuclear News announced the development under the headline that the final steam generators had been delivered for Akkuyu. Source
A large-scale sea transport operation
Carrying reactor equipment weighing hundreds of tonnes from factory to construction site by sea ranks among the largest-scale operations in the field of nuclear project transportation. The completion of deliveries of all reactor vessels and the 16 steam generators for the four Akkuyu units was recorded as a major threshold in the plant's equipment supply chain.