The Hualong One is the most common reactor design under construction in China, and the mainstream technology in the near future. China also plans to export the reactor.
The Hualong One was developed by the China General Nuclear Power Group (CGNPG) and the China National Nuclear Corporation (CNNC) based on the ACPR1000 and the ACP1000 designs. Both are three-loop designs originally based on the same French M310 design. 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.
Initially the merged design was to be called the ACC1000, but ultimately it was named Hualong One. In August 2014 the Chinese nuclear regulator review panel classified the design as a Generation III reactor design, with independently owned intellectual property rights.
The first units to be constructed will be Fuqing 5 and 6, followed by Fangchenggang 3 and 4. 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 is planned to start in 2020 in Argentina.
In December 2015 China Guangdong Nuclear Power Group (CGN) and China National Nuclear Corporation (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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