Le nucléaire en Chine

[energy_isere]

China's first commercial nuclear district heating scheme expands

21 November 2024

China's Haiyang nuclear power plant in Shandong province has begun its sixth heating season, covering an area of nearly 13 million square metres - 500,000 square metres more than last year.

According to State Power Investment Corporation (SPIC) - parent company of Shandong Nuclear Power Company - the district heating network is expected to supply 4.6 million gigajoules of heat, which will save 410,000 tonnes of coal consumption and reduce CO2 emissions by 760,000 tonnes. It plans to be able to heat the city of Qingdao - population of more than 10 million - in 2026.

The district heating scheme at the Haiyang plant, which began as a demonstration project to show the feasibility of such a scheme, was put into operation in 2019. Each year it has been expanded, with heating capacity rising from an initial 31.5 MW to 1134 MW, and the area covered increasing 20-fold from an initial 700,000 square metres.

SPIC says "the safe and stable operation of the five heating seasons fully verified that the engineering technology is replicable, the business model is promotable, and the cost-effectiveness is sustainable. It provides a good model for large-scale cogeneration of nuclear power, and has led to the follow-up implementation at multiple nuclear power plants".

It says that over the past five winters the district heating scheme has provided 9.01 million GJ of heat, saving 810,000 tonnes of coal and reducing carbon dioxide emissions by 1.49 million tonnes. It says that the air quality during winter in Haiyang "has improved significantly" and the area where the sea temperature is 2C hotter around the nuclear power plant has reduced by 41 hectares since the heating scheme's start.

Haiyang Nuclear Power Plant currently features two Westinghouse AP1000 units and SPIC says it is the world's largest such nuclear power plant cogeneration project. It says that with the commissioning of subsequent units - two CAP1000 units are currently under construction and up to four more are proposed - it is expected to provide heating for the city of Qingdao in 2026 and the long-term heating capacity will reach 200 million square metres.
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https://www.world-nuclear-news.org/arti ... me-expands

[energy_isere]

First Zhangzhou unit begins supplying power

Thursday, 28 November 2024

Unit 1 of the Zhangzhou nuclear power plant in China's Fujian province has been connected to the grid, China National Nuclear Corporation has announced. The unit is the first of four Hualong One (HPR1000) reactors under construction at the site.



The reactor began supplying electricity to grid at 7.46am on Thursday, CNNC said, marking "major progress in the mass production of Hualong One by China National Nuclear Corporation, and makes new contributions to the optimisation of the national energy structure and the realisation of the 'dual carbon' goals".

It added: "A series of tests will be carried out as planned to further verify the performance of the unit to meet commercial operation conditions."

In May 2014, the local government gave approval for Phase I of the Zhangzhou plant, comprising two AP1000 units. The National Nuclear Safety Administration gave approval in December 2015 for the AP1000 units and confirmed site selection in October 2016. Construction of Phase I had originally been expected to start in May 2017. However, CNNC subsequently decided to use the HPR1000 (Hualong One) design instead. Two more Hualong One units are planned for Phase II of the plant and a further two proposed for Phase III.


Four units are now under construction at Zhangzhou (Image: CNNC)

Construction of Zhangzhou 1 began in October 2019, with that of unit 2 starting in September 2020.

In September 2022, China's State Council approved the construction of two further Hualong One units as Phase II of the Zhangzhou plant. First concrete for the nuclear island of unit 3 was poured on 22 February this year. First concrete for unit 4 was poured last month.

The Zhangzhou project - with a total investment of over CNY100 billion (USD14 billion) - is owned by CNNC-Guodian Zhangzhou Energy Company, a joint venture between CNNC (51%) and China Guodian Corporation (49%).

CNNC said the Zhangzhou plant is the starting point for the mass construction of Hualong One reactors and "is currently the world's largest Hualong One nuclear power base". It plans to construct a total of six Hualong One nuclear units at the site. Currently, four Hualong One units are under construction there.

"At present, the total number of Hualong One units in operation and under construction at home and abroad has reached 33, making it the third-generation nuclear power technology with the largest number of units in operation and under construction in the world," CNNC noted.

https://www.world-nuclear-news.org/arti ... ying-power

[energy_isere]

suite du post au dessus.

Zhangzhou unit 1 enters commercial operation

Thursday, 2 January 2025

Unit 1 of the Zhangzhou nuclear power plant in China's Fujian province - the first of six Hualong One (HPR1000) reactors planned at the site - has been put into commercial operation, China National Nuclear Corporation has announced.


Zhangzhou units 1 and 2 (Image: CNNC)

At 00:17 on 1 January, the 1126 MWe (net) domestically-designed pressurised water reactor completed a series of commissioning tests, including a test run lasting 168 hours, CNNC said.

In May 2014, the local government gave approval for Phase I of the Zhangzhou plant, comprising two AP1000 units. The National Nuclear Safety Administration gave approval in December 2015 for the AP1000 units and confirmed site selection in October 2016. Construction of Phase I had originally been expected to start in May 2017. However, CNNC subsequently decided to use the HPR1000 design instead. Two more Hualong One units are planned for Phase II of the plant and a further two proposed for Phase III.

Construction of Zhangzhou 1 began in October 2019, with that of unit 2 starting in September 2020.

In September 2022, China's State Council approved the construction of two further Hualong One units as Phase II of the Zhangzhou plant. First concrete for the nuclear island of unit 3 was poured on 22 February last year, with that for unit 4 following in October.

The process of loading 177 fuel assemblies into the core of Zhangzhou 1 began on 12 October following the issuance of an operating licence by China's Ministry of Ecology and Environment. The reactor achieved first criticality on 20 November and was connected to the grid on 28 November.

CNNC said the start of commercial operation of Zhangzhou 1 "marks a major progress in the mass construction of Hualong One". It plans to construct a total of six Hualong One units at the site. Currently, three further such units are under construction there.

The Zhangzhou project - with a total investment of over CNY100 billion (USD14 billion) - is owned by CNNC-Guodian Zhangzhou Energy Company, a joint venture between CNNC (51%) and China Guodian Corporation (49%).

CNNC noted that the number of power reactors now in operation under its control has increased to 26, and the installed capacity has increased from 23.75 GWe to 24.962 GWe.

https://www.world-nuclear-news.org/arti ... -operation

[energy_isere]

Major Chinese operators report nuclear output for 2024

Tuesday, 14 January 2025

China General Nuclear has reported a 6% increase in nuclear electricity output in 2024, compared with 2023, while China National Nuclear Corporation said its nuclear generation was 1.8% lower in 2024, a decrease mainly attributed to reactors being offline for maintenance.


Unit 4 of CGN's Fangchenggang plant entered commercial operation in 2024 (Image: CGN)

In an announcement to the Hong Kong Stock Exchange, China General Nuclear (CGN) said that, as of 31 December 2024, it had a total of 28 power reactors in operation with a combined generating capacity of 31,798 MWe.

Total power generation last year of reactors operated and managed by the group totalled about 242.2 TWh, a year-on-year increase of 6.08%, it said. Meanwhile, the total amount of electricity supplied to the grid was 227.3 TWh, an increase of 6.13%.

CGN said that during 2024, it completed, as scheduled, 13 annual refuelling outages (including one annual refuelling outage conducted over to the next year), five ten-year outages (including one ten-year outage conducted over to the next year) and one initial outage.

As of 31 December 2024, CGN managed a total of 16 reactors under construction (including eight units which were entrusted to the company by the controlling shareholder of the company for management), among which, two were in the commissioning phase, three were in the equipment installation phase, two were in the civil construction phase, and nine were preparing for first concrete to be poured. Unit 1 of the Huizhou/Taipingling plant in Guangdong province is expected to enter commercial operation during 2025.

Meanwhile, China National Nuclear Corporation (CNNC) subsidiary China National Nuclear Power announced to the Shanghai Stock Exchange that its nuclear power units generated a total of 183.1 TWh of electricity in 2024, a year-on-year decrease of 1.8%. The amount of electricity supplied to the grid was 171.260 billion kWh, also a year-on-year decrease of 1.8%.

As of the end of December, CNNC controlled 25 power reactors in operation with an installed capacity of 23.75 GWe; controlled 18 units either under construction or approved for construction, with an installed capacity of 20.641 GWe.

In 2025, CNNC's planned nuclear power generation is 195.4 TWh. The company's controlled nuclear power units in operation are scheduled to undergo 16 maintenance and refuelling outages throughout the year (including three ten-year overhauls, two five-year overhauls and 11 routine overhauls).

While CNNC and CGN are the main nuclear operators in China, State Power Investment Corporation (via its nuclear power business State Nuclear Power Technology Corporation) and Huaneng Group are the country's third and fourth nuclear operators, respectively. Other companies - including Huadian, Datang and Guodian - own stakes in some plants.

China's total fleet of 58 operable reactors supply about 5% of the country's electricity.

https://www.world-nuclear-news.org/arti ... t-for-2024

[energy_isere]

suite de ce post du 13 avril 2024 viewtopic.php?p=2389527#p2389527

First main pump installed in Chinese SMR

Thursday, 17 April 2025

The first of four main pumps has been installed at the ACP100 small modular reactor demonstration project, under construction at the Changjiang site on China's island province of Hainan, China National Nuclear Corporation has announced.



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https://www.world-nuclear-news.org/arti ... hinese-smr