China's Hualong One Reactor Construction Advances

The China General Nuclear Power Corporation (CGN) has achieved a significant construction milestone at its Ningde facility, successfully installing the containment dome for Unit 5. This critical step, completed on June 15, 2026, signals the project's transition from foundational civil engineering to the intricate process of installing major nuclear equipment. The Ningde plant, situated in Fujian Province, is a cornerstone of China's expanding nuclear energy portfolio.

Unit 5 is engineered with the advanced Hualong One (HPR1000) pressurized water reactor technology, a testament to China's indigenous nuclear innovation. This design emphasizes enhanced safety protocols and improved operational efficiencies over previous generations. With a projected output of 1,210 MW, the unit is slated to commence commercial operations in 2029, contributing substantially to the region's clean energy supply.

The project's construction momentum is evident, following the initial concrete pour for the nuclear island on July 28, 2024. The completion of the dome installation is a pivotal moment, clearing the way for the integration of core components such as the reactor vessel, steam generators, and crucial cooling systems. This phase is vital for maintaining the project's schedule and ensuring the integrity of the reactor's containment structure.

The Ningde Nuclear Power Plant is already a significant operational hub, hosting four existing reactors with capacities exceeding 1,000 MW each. The addition of Unit 5 will further solidify its position as a major contributor to China's national power grid and its ambitious decarbonization targets. China's nuclear energy sector has seen robust growth, with the nation aiming to significantly increase its nuclear capacity in the coming decade to meet rising energy demands while reducing reliance on fossil fuels.

The successful deployment of the Hualong One technology at Ningde underscores its maturity and readiness for large-scale implementation. This domestically developed reactor design is not only crucial for China's energy security but also positions the nation as a potential exporter of nuclear technology. The global nuclear power market is experiencing renewed interest, driven by climate change imperatives and the need for reliable, low-carbon baseload power generation.

With the containment structure now in place, the focus shifts to the complex equipment installation and rigorous commissioning procedures. The 2029 operational target for Ningde Unit 5 aligns with China's broader strategy to expand its nuclear fleet, reinforcing the technology's role in the nation's long-term energy transition. This development is indicative of sustained investment in advanced nuclear infrastructure, supporting both economic growth and environmental sustainability goals.