China's Hualong One 2.0: Next-Generation Nuclear Reactor Gets Green Light for Eight New Units

China's Hualong One 2.0: Next-Generation Nuclear Reactor Gets Green Light for Eight New Units

[Beijing, China - August 8, 2026] China's State Council has approved eight new nuclear reactor units at four sites, marking the first demonstration projects for the upgraded Hualong One 2.0 design. The decision, made at an executive meeting on July 31, advances Beijing's push to scale Generation III-plus reactors while meeting 2030 capacity goals. Six of the units will use Hualong One technology, with two sites designated to test the 2.0 variant. The remaining two units will deploy the Guohe One design. Officials stressed that all projects must meet the highest international safety standards across the supply chain. The approvals form the opening batch of nuclear projects under the 15th Five-Year Plan period.

Eight Units, Four Provinces: What Beijing Approved on July 31

The approved projects span Zhejiang, Guangdong, Liaoning, and Shandong provinces. Jinqimen Phase II units 3 and 4 in Ningbo, Zhejiang, and Taipingling Phase III units 5 and 6 in Huizhou, Guangdong, will serve as the first demonstration sites for Hualong One 2.0. Both projects are led by CNNC and CGN respectively. Zhuanghe Phase I in Liaoning will add two further Hualong One units under a CNNC-Datang partnership. In Shandong, Laiyang Phase I will host two Guohe One units developed by SPIC. These represent the initial standardized batch for the Guohe One model, with plans for six units at the site eventually. The State Council statement requires full adherence to global safety benchmarks during construction and operation. The July 31 meeting chaired by Premier Li Qiang explicitly listed the eight units as the inaugural projects of the 15th Five-Year Plan, signaling normalized rollout rather than isolated approvals.

Jinqimen Phase II in Zhejiang marks the first Hualong One 2.0 demonstration under CNNC oversight, with units 3 and 4 positioned to validate the upgraded design in a coastal setting already familiar with prior Hualong deployments. Taipingling Phase III in Guangdong extends the CGN-led project that recently completed Phase I, allowing direct comparison of 2.0 enhancements against operational units in the Greater Bay Area. Zhuanghe Phase I introduces Hualong One technology to Liaoning through the CNNC-Datang joint venture, broadening geographic coverage to northeastern provinces where energy demand growth supports baseload additions. Laiyang Phase I in Shandong initiates the Guohe One rollout under SPIC, establishing a template site that will scale to six units over time and test batch construction efficiencies from the outset.

Hualong One 2.0: A Generation III-Plus Upgrade Built on Operating Experience

Hualong One 2.0 builds directly on feedback from the ten Hualong One units already in commercial operation domestically and overseas. The design incorporates Chinese standards, fully domestic software, and refined active and passive safety systems. Intelligent control features and modular construction methods are expected to reduce overall workload while raising safety margins, technical performance, and economic returns. Thirty-seven additional Hualong One units have been approved and are under construction, giving the design the largest fleet among Generation III reactors worldwide. Each unit is rated for roughly 10 billion kWh of annual output, sufficient to power a city of more than one million people while avoiding over three million tons of standard coal and nine million tons of carbon dioxide emissions per year. The 2.0 version further optimizes these parameters through lessons from the existing fleet, positioning it as the reference for future standardized builds.

Guohe One: SPIC's Standardized Batch Model at Laiyang

The two Guohe One units at Laiyang Phase I mark the first standardized, batch-built application of the enlarged CAP1000 pressurized water reactor derived from the Westinghouse AP1000. SPIC leads the project, which is positioned as a template for future replication. The site is planned to accommodate six units in total. This approach aligns with Beijing's emphasis on normalized, large-scale nuclear expansion. The design maintains the core safety architecture of the AP1000 while incorporating Chinese engineering optimizations. Construction sequencing at Laiyang will provide data on schedule predictability and cost control for subsequent projects using the same standardized configuration. As the first batch application, Laiyang sets the pattern for cost and timeline discipline across the wider pipeline.

The Buildout by the Numbers: Output, Investment, and Private Capital

China's nuclear fleet generated approximately 467 billion kWh in 2025. Nuclear engineering investment reached a record 161 billion yuan, or 23.84 billion dollars. Five approved projects included private capital participation. Taipingling Unit 2 began electricity generation on August 4, 2026, completing Phase I of that site and marking the first Hualong One project serving the Guangdong-Hong Kong-Macao Greater Bay Area. The two units at Taipingling Phase I are projected to deliver more than 18 billion kWh annually, supporting nearly two million people and cutting roughly 16.63 million tons of carbon dioxide each year. Professor Li Jinkai of Beijing Institute of Technology noted that nuclear construction has entered a stage of large-scale, batched, and normalized development. The State Council emphasized that safety supervision will extend across the entire supply chain to maintain the highest global standards.

The 2025 investment total of 161 billion yuan reflects sustained momentum from prior years and incorporates private capital in five separate projects, diversifying funding sources beyond traditional state entities. This private participation signals growing commercial interest in nuclear infrastructure as returns stabilize under long-term power purchase frameworks. Taipingling Phase I output exceeding 18 billion kWh annually demonstrates the immediate contribution of newly commissioned Hualong One units to regional grids, particularly in high-demand coastal zones. Professor Li Jinkai's assessment of large-scale, batched, and normalized development aligns with the shift from sporadic approvals to predictable multi-unit pipelines that reduce per-unit engineering overhead.

Japan Context: Safety Lessons and the Asia-Pacific Nuclear Race

Japan continues to apply lessons from the 2011 Fukushima accident to its own reactor restart program and regulatory framework. Units remain under review at Kashiwazaki-Kariwa and Sendai, where utilities must satisfy enhanced seismic and safety requirements before any restart. Japan's energy policy targets nuclear power at roughly 20 percent of the electricity mix by 2030, a goal that requires steady progress on restarts alongside new builds. Japanese reactor makers Mitsubishi Heavy Industries, Hitachi, and Toshiba are advancing their own Generation III-plus designs and small modular reactor concepts, seeking both domestic orders and export opportunities. China's move toward 110 GW installed nuclear capacity by 2030, up from roughly 58 GW today, and 200 GW by 2040 creates direct competitive pressure across the Asia-Pacific region. Southeast Asian governments evaluating nuclear options now compare Chinese standardized batch construction timelines and costs against Japanese offerings. Regional energy competition is intensifying as both countries target lower emissions through nuclear expansion. Tokyo's policy debates center on balancing public confidence, supply chain resilience, and the need for stable baseload power amid rising regional demand. The scale of China's Hualong One 2.0 and Guohe One deployments may influence technology choices by neighboring countries weighing speed of deployment against established safety records.

Kashiwazaki-Kariwa remains a focal point for Japanese restart efforts, with its seven units representing significant potential capacity once regulatory hurdles clear. Mitsubishi Heavy Industries, Hitachi, and Toshiba continue refining domestic designs while monitoring export prospects in markets where Chinese batch-build economics are gaining attention. The gap between China's current 58 GW and the 110 GW 2030 target underscores the pace differential that regional planners observe when comparing technology suppliers. Energy security considerations in the Asia-Pacific increasingly factor in supply chain localization and construction predictability offered by both Japanese and Chinese vendors.

What to Watch For

Attention now turns to the timing of first concrete pours at the approved sites and the pace of Hualong One 2.0 demonstration milestones at Jinqimen and Taipingling Phase III. Laiyang Guohe One construction sequencing will be tracked for schedule and cost benchmarks. Regulators will publish detailed safety review timelines. China's installed nuclear capacity stands near 58 GW and is targeted to reach 110 GW by 2030 and 200 GW by 2040. Progress on these initial 15th Five-Year Plan projects will indicate whether the normalized construction model can deliver the required capacity additions on schedule.

The 2030 target of 110 GW requires sustained annual additions that these eight units help initiate, with Jinqimen Phase II and Taipingling Phase III expected to move into early construction phases within the next 18 to 24 months based on standard regulatory sequencing. Observers will monitor whether demonstration timelines for the 2.0 variant compress subsequent project cycles as intended.

By Kenji Tanaka, Staff Writer

This article was produced with AI-assisted research and editorial support. Reporting is based on sources cited in the article.