Rosatom Supplies Advanced Systems for Tianwan Nuclear Power Plant Unit 7 in China
High-tech equipment for the seventh power unit at China’s Tianwan Nuclear Power Plant has been developed in Russia, placing the safety and performance of the VVER-1200 reactor under the control of Russian-designed systems.
The latest VVER-1200 reactor installed in China has been equipped with modern Russian technology designed to deliver high levels of operational safety and reliability.
Engineers from the Specialized Research Institute of Instrument Engineering (SNIIP), part of Rosatom, completed the full project cycle. That included design, manufacturing, delivery, installation, and commissioning of control systems for Unit 7 at Tianwan Nuclear Power Plant.
The installation includes systems for continuous monitoring of key reactor parameters, including neutron flux, hydrogen concentration, and coolant levels. It also integrates fire protection and emergency response capabilities, raising the overall safety profile of the facility.
For the Chinese units, engineers developed standardized control and diagnostics packages covering equipment within the “nuclear island,” where the most critical physical processes affecting reactor safety and performance take place.
Modern Technologies for Nuclear Safety
The equipment supplied by the Russian developer reflects current engineering practice in nuclear instrumentation. It enables operators to continuously monitor reactor conditions, detect deviations at an early stage, and prevent incidents before they escalate. High-precision sensors combined with intelligent data-processing algorithms reduce the risk of operator error and improve overall system resilience.
In addition, SNIIP supplied laboratory equipment and components for a full-scope simulator used to train plant personnel. This supports operator qualification and helps mitigate risks associated with the human factor when managing complex nuclear systems.
International Recognition of Russian Technology
Construction of Units 7 and 8 at the Tianwan plant follows a 2019 agreement between Rosatom and China National Nuclear Corporation. The project builds on long-standing cooperation between Russia and China in the field of peaceful nuclear energy.
Tianwan Nuclear Power Plant is widely regarded as one of the largest economic cooperation projects between the two countries. Four earlier units equipped with VVER-1000 reactors are already in operation, generating substantial volumes of electricity each year to support both industrial demand and regional consumption.
The transition to more advanced VVER-1200 reactors marks a new phase in bilateral cooperation. It strengthens the foundation for further development of low-carbon and safe nuclear energy technologies.
Building the Future of Nuclear Energy
Completion of Unit 7 opens the way for continued collaboration. Plans are in place to construct three additional reactors of the same type in China, underscoring confidence in Russian engineering capabilities and technology.
Such projects reinforce Russia’s position as a supplier of high-value nuclear solutions and support expansion into new international markets. Russian-developed systems are increasingly seen as benchmarks for safety and performance beyond the domestic market.
