Episode Summary: This episode of the China Nuclear Builds Weekly Update breaks down the staggering scale of China’s civil nuclear expansion. As of July 2026, the country’s operational civil nuclear fleet has reached approximately 62 power reactors with a combined net capacity of 61.2 GWe, trailing only the United States. With an additional 36 to 39 reactors (totalling 37–39 GWe) currently under active construction, China leads global nuclear construction for the 19th consecutive year.
We examine the industrial capacity that allows China to construct up to 50 reactors simultaneously and detail this week’s critical site milestones, including the rapid grid connection of the 1,116 MWe Taipingling-2 Hualong One unit and the transition of Haiyang-4 into equipment installation. Finally, we explore how China is pushing the boundaries of nuclear science with next-generation technologies: dual-coupling PWR-HTGR industrial steam plants, fast neutron breeder reactors, thorium molten-salt fuel cycles, and the imminent commissioning of the world’s first commercial land-based SMR.
Key Topics Covered in This Episode:
The Fleet-Level Numbers: Current fleet status (62 operational reactors) and the progress toward the 15th Five-Year Plan target of 110 GWe by 2030.
Weekly Construction Highlights (Week ending 5 July 2026):
Taipingling-2 Grid Connection: The HPR1000 (Hualong One) unit's rapid progression from first criticality on 25 June to grid connection in early July.
Haiyang-4 CB20 Installation: The hoisting of the 419-tonne emergency water storage tank, enabling passive reactor cooling for up to 72 hours without human intervention.
Advanced Nuclear Technology & Gen IV Deployment:
The sCO₂ Power Cycle: The debut of "Chaotan One," the world's first commercial supercritical carbon dioxide waste-heat recovery system.
Xuwei Dual-Coupling Project: The world’s first dual-coupling demonstration plant pairing two Hualong One PWRs with a fourth-generation 660 MW HTGR for trillion-yuan industrial petrochemical steam supply.
Linglong One SMR: Hainan's 125 MWe ACP100 small modular reactor entering pre-commissioning tests.
Closed Fuel Cycle Infrastructure: Fast neutron reactors at Xiapu and China's pilot reprocessing capabilities in Gansu.
Thorium Breeding Success: SINAP's successful experimental conversion of thorium to uranium-233 in the TMSR-LF1 molten-salt reactor.
The Policy Pipeline: How policy mandates like annual batch approvals of 10+ reactors, localized component manufacturing, and signing the Paris Declaration to Triple Nuclear Energy are securing China's nuclear sovereignty.
Standard Institutional Disclaimer: "This report is prepared for informational purposes only and does not constitute investment advice, a recommendation, or an offer or solicitation to buy or sell any securities or financial instruments. The information contained herein is compiled from publicly available sources believed to be reliable, but no representation or warranty, express or implied, is made as to its accuracy, completeness, or timeliness
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