Containment tests completed at Lufeng unit 5

China General Nuclear completed containment integrity tests on unit 5 of the Lufeng nuclear power plant in Guangdong Province on Friday. The Hualong One reactor was pressurised to 110% of design pressure to verify structural strength, then to design pressure (0.420 MPa) to test its ability to contain radioactive material in an emergency. Acoustic leak detection, visual inspection and monitoring confirmed the vessel meets design and construction standards. Unit 5 poured first concrete in September 2022 and is scheduled to operate in 2027. Unit 6 will follow in 2028. The site will eventually hold six reactors: two Hualong One units (5 and 6) and four older-design CAP1000 units (1-4), the latter not yet approved for full construction.

Where this fits

This is a milestone in China's expansion of firm dispatchable nuclear capacity. Lufeng will add 5000 MWe of baseload generation to Guangdong's grid, displacing weather-dependent renewables and reducing the need for gas firming. The reactor design, a modern Chinese indigene product, demonstrates that nuclear construction and supply chains are consolidating under Beijing's control. Australia has no domestic nuclear manufacturing, no active fleet to maintain skills, and a statutory ban on nuclear generation, leaving the country dependent on Chinese renewables hardware and battery systems for its electricity transition.

What it means

Every gigawatt China adds via nuclear is firm power that reduces reliance on gas and weather. Australia is instead building the same renewables that require China's processed minerals, inverters and batteries, plus gas backup and transmission overbuild, at higher whole-system cost and with critical supply-chain dependence on the same strategic rival. The choice to ban nuclear while racing a renewables transition has locked Australia into a path that is both more expensive and more exposed to Beijing's leverage over the technologies that make it work.