The Hualong One (Chinese: 华龙一号; pinyin: Huálóng yī hào; lit. 'China Dragon №1') is a Chinese Generation III pressurized water nuclear reactor jointly developed by the China General Nuclear Power Group (CGN) and the China National Nuclear Corporation (CNNC). The CGN version, and its derived export version, is called HPR1000.
Hualong One is based on the three-loop ACPR1000 and ACP1000, which in turn are based on the French M310. In early 2014 it was announced that the merged design was moving from preliminary design to detailed design. Power output will be 1170 MWe gross, 1090 MWe net, with a 60-year design life, and would use a combination of passive and active safety systems with a double containment.
Chinese media reports that all core components are manufactured in China and that 17 universities and research institutions, 58 state-owned enterprises and over 140 private firms across China worked on Hualong One's development to ensure all core components were able to be produced domestically.
The first units to be constructed will be Fuqing 5 and 6 (Fujian Province), followed by Fangchenggang 3 and 4 (Guangxi), Zhangzhou 1 and 2 (Fujian), Taipingling 1 and 2 (Guangdong), and San’Ao 1 and 2 (Zhejiang). Fuqing 5 began commercial operation on 30 January 2021.
There are five Hualong One reactors planned for Pakistan, four reactors are planned at Karachi Nuclear Power Complex and one reactor at Chashma Nuclear Power Plant, out of which two are under construction at Karachi. Construction of another Hualong One reactor was planned to start in 2020 in Argentina, but was stalled during negotiation. The project was reactivated in 2021 and expected to start construction in 2022, with completion date by 2028.
In December 2015, CGN and CNNC agreed to create Hualong International Nuclear Power Technology Co as a joint venture to promote the Hualong One in overseas markets, which was officially launched in March 2016. On 19 January 2017, the United Kingdom Office for Nuclear Regulation (ONR) started their Generic Design Assessment process for the Hualong One, expected to be completed in 2021, in advance of possible deployment at the Bradwell nuclear power station site. On 16 November 2017, the ONR and the Environment Agency announced they are progressing to the next phase of their Generic Design Assessment of the UK HPR1000 reactor. Step 2 formally commenced on this day and is planned to take about 12 months. The targeted timescale for the UK HPR1000 GDA process is about five years from the start of Step 1.
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