The CFR‑600 (China Fleet‑Rated 600 MWe) is a pressurised water reactor (PWR) design developed by the China National Nuclear Corporation (CNNC). It is classified as a Generation III+ reactor and is intended to generate approximately 600 megawatts of electrical power (MWe). The design incorporates a number of modern safety and efficiency features, including:
- Three‑loop primary cooling system – similar to conventional large‑scale PWRs, providing redundancy in heat removal.
- Extended safety provisions – double‑walled containment, a combination of active and passive safety systems, and a core damage frequency that meets international standards for high‑reliability reactors.
- Digital instrumentation and control – extensive use of computer‑based monitoring and control technology to support automated safety actions and operational optimisation.
- Modular construction approach – components are manufactured in factories and assembled on‑site, aiming to reduce construction time and cost relative to traditional on‑site build methods.
Development and Status
CNNC announced the CFR‑600 as part of China’s broader programme to expand its domestic nuclear‑power capacity and to develop small‑modular reactor (SMR) technologies for both domestic use and export. The design draws on experience from CNNC’s larger Hualong One series of reactors, applying a scaled‑down configuration while retaining the same core design philosophy.
By the early 2020s, CNNC reported that the CFR‑600 had completed its preliminary design review and was seeking regulatory approval for construction. As of the latest publicly available information (2023), concrete preparation and civil engineering work for at least one CFR‑600 unit had commenced at a site in the Fujian province of China, with a projected commercial operation date in the mid‑2020s. Further sites have been proposed, but detailed timelines and locations remain pending regulatory and licensing procedures.
Technical Characteristics (as publicly disclosed)
| Parameter | Value (as reported) |
|---|---|
| Reactor type | Pressurised water reactor (PWR) |
| Electrical output | ~600 MWe |
| Thermal output | Approximately 1,800 MWth (estimated) |
| Fuel | Low‑enriched uranium dioxide (UO₂) fuel assemblies |
| Coolant | Light water (H₂O) |
| Containment | Double‑walled steel‑reinforced concrete |
| Safety systems | Combination of active safety injection and passive heat removal (e.g., gravity‑driven cooling) |
| Design life | 60 years (planned) |
International Context
The CFR‑600 is positioned within the global SMR market, where multiple countries are developing reactors in the 300–800 MWe range to serve mid‑size grids, remote locations, and industrial users. CNNC has indicated an intention to offer the CFR‑600 for export, seeking to compete with other Generation III+ SMR designs such as the United States’ NuScale Power Module and Russia’s RITM‑200.
References
- China National Nuclear Corporation (CNNC) official communications and press releases (2020–2023).
- International Atomic Energy Agency (IAEA) conference presentations on SMR development, referencing the CFR‑600.
- State‑run Chinese news agencies (e.g., Xinhua, China Daily) reporting on the commencement of civil works for a CFR‑600 unit in Fujian province.
Note: Specific site locations, construction schedules, and detailed engineering data are subject to change pending further regulatory review and have not been fully disclosed in publicly available sources.