Le nucléaire en Chine

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Re: Le nucléaire en Chine

Message par energy_isere » 17 sept. 2022, 15:13

Et hop, approbation pour la construction de 4 autres réacteurs en Chine :
Approval for four new reactors in south China

15 September 2022

China's State Council approved the construction of two CAP1000 units as Phase I of the Lianjiang nuclear power plant in Guangdong province and two Hualong One units as Phase II of the Zhangzhou plant in Fujian province.

The decision to approve the projects was taken during a 14 September meeting chaired by Premier Li Keqiang.

"In order to improve energy security capability and promote green development, the meeting decided to approve the nuclear power projects of Zhangzhou Phase II in Fujian and Lianjiang Phase I in Guangdong, which have been included in the plan and have mature conditions," the state news agency Xinhua reported.

Two CAP1000 units - the Chinese version of the AP1000 - are planned for the first phase of the Lianjiang plant, a project of State Power Investment Corporation (SPIC). Four further CAP1000s are envisaged for the second phase of the project.
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https://www.world-nuclear-news.org/Arti ... outh-China

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Re: Le nucléaire en Chine

Message par energy_isere » 15 oct. 2022, 20:39

suite de ce post du 19 mars 2022 viewtopic.php?p=2339619#p2339619

Le réseau de chaleur du complexe nucleaire de Hongyanhe bientot terminé. Pour alimenter 20 000 habitants.
Hongyanhe district heating project into final stages

14 October 2022

Construction is reportedly 95% complete on the demonstration nuclear heating project at the Hongyanhe nuclear power plant in China's Liaoning province and it aims to be up and running within the next month.

Image
The Hongyanghe nuclear plant (Image: CGN)

The China Nuclear Energy Association, citing the Dalian Daily newspaper, said that construction has progressed well since July for the project which is jointly funded and being built by Liaoning Hongyanhe Nuclear Power Company and State Power Investment Northeast Electric Power Company.

Liaoning Hongyanhe Nuclear Power Co is responsible for the renovation of the heat source on the site and the construction of the primary pipe network and ancilliary facilities, while State Power Investment Northeast Electric Power Co's subsidiary Dalian Dafa Energy Branch is responsible for the construction and operation of the secondary network - including a secondary pipe network of 5.7 kilometres - production and operation centre and heat exchange station.

The demonstration project is scheduled to be completed on 25 October, operating in a hot state on 1 November and reaching the official heating standard on 5 November.

According to China Environment, in a report also cited by the China Nuclear Energy Association, it had been told that the project "has been completed about 95%" and that at the start it will cover Hongyanhe Town, 10 kilometres away from the nuclear power plant, with a heating user area of more than 240,000 square metres. In total about 20,000 residents will benefit from it.

The environmental protection benefits from the completed project are estimated as the reduction of annual coal consumption by 12,100 tonnes, smoke and dust emissions by more than 209 tonnes, sulphur dioxide by more than 60 tonnes, carbon dioxide by more than 14,000 tonnes, nitrogen oxides by more than 85 tonnes, and ash by more than 0.26 tonnes.

This is the first district heating project in the north-east of China. The Chinese government has made clean-energy heating a priority. In 2017, the authorities issued guidance on clean heating in winter in northern China. The National Energy Administration released a five-year plan, covering 2017-2021, highlighting the innovation of clean heating technology and consideration of nuclear heating.

China's Haiyang nuclear power plant in Shandong province officially started providing district heat to the surrounding area in November 2020. A trial of the project - the country's first commercial nuclear heating project - was carried out the previous winter, providing heat to 700,000 square metres of housing, including the plant's dormitory and some local residents. This year the Haiyang Nuclear Energy Heating Project began providing heating to the entire Haiyang city.

The first phase of a district heating demonstration project at the Qinshan nuclear power plant in China's southern Zhejiang Province was commissioned in December 2021. The project is divided into three phases. The initial phase now provides nuclear energy-generated central heating to 460,000 square metres of accommodation in three residential areas and 5000 square metres of apartments for nearly 4000 residents of Haiyan County. The overall project goal is to have a nuclear heating area of ​​4 million square metres by 2025, covering the main urban area of ​​Haiyan County and the entire area of ​​Shupu Town.

Russia, several East European countries, Switzerland and Sweden have all had nuclear-fuelled district heating schemes, and heat from nuclear power plants has also been sent to industrial sites in several countries.
https://www.world-nuclear-news.org/Arti ... ct-heating

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Re: Le nucléaire en Chine

Message par energy_isere » 05 nov. 2022, 15:00

suite du post au dessus.
Hongyanhe district heating demonstration project starts

02 November 2022

The demonstration nuclear energy heating project at the Hongyanhe nuclear power plant in China’s Liaoning province has been officially put into operation. It is the first nuclear energy heating project in northeast China, benefiting nearly 20,000 local residents.

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https://www.world-nuclear-news.org/Arti ... -project-s

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Re: Le nucléaire en Chine

Message par energy_isere » 05 nov. 2022, 15:05

suite de ce post du 9 janvier 2021 viewtopic.php?p=2314874#p2314874
Dome in place at first San'ao unit
The 238.5-tonne dome was hoisted into place on 3 November, marking an important milestone in the construction of the first of six Hualong One units planned for the site. Work at San'ao 1 will now focus on the installation of equipment.

04 November 2022

Image
San'ao gets its dome (Image: CGN)

The dome is a key component of the third safety barrier of the nuclear power plant, ensuring the integrity and sealing of the reactor building and realising the inherent safety characteristics, China General Nuclear Power Group (CGN) said.

The operation to hoist the dome, which is 45 metres in diameter, to a height of 70 metres and moving it into place is a high-precision task, with challenges including wind conditions and thermal expansion and contraction due to changing temperatures.

"It's like using a crane to thread an embroidery needle," Zhong Hongjin, senior engineer in charge of nuclear island civil works at CGN Cangnan Nuclear Power Co, Ltd.

Two Hualong One units are currently under construction at San'ao, which is near Cangnan county on the coast of Zhejiang province. Construction of unit 1 began at the end of 2020, with unit 2 following a year later. The units are currently expected to begin operation in 2026 and 2027 respectively.
https://www.world-nuclear-news.org/Arti ... an-ao-unit

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Re: Le nucléaire en Chine

Message par energy_isere » 18 déc. 2022, 18:51

Chinese nuclear plant starts supplying industrial heating

15 December 2022

China's first nuclear energy industrial heating project has officially been completed and put into operation at the Qinshan nuclear power plant in Zhejiang Province, China National Nuclear Corporation (CNNC) announced.

The project started on 15 July this year, with the construction of the main network completed on 15 November. It entered trial operation on 21 November.

CNNC said the project can provide guaranteed 24-hour heat supply with annual industrial heat supply of about 288,000 gigajoules. This, it says, is equivalent to saving about 10,000 tonnes of standard coal and reducing carbon dioxide emissions by about 24,000 tonnes.

"This is another major breakthrough made by CNNC Qinshan Nuclear Power and Haiyan County in the comprehensive utilisation of nuclear energy since the completion of the first phase of the Zhejiang Haiyan Nuclear Energy Heating Demonstration Project in 2021," CNNC said.

The first phase of the district heating demonstration project at Qinshan, with a total investment of about CNY940 million (USD135 million), was commissioned in December 2021. The project is divided into three phases. The initial phase now provides nuclear energy generated central heating to 460,000 square metres of accommodation in three residential areas and 5000 square metres of apartments for nearly 4000 residents of Haiyan County. The overall project goal is to have 704,000 gigajoules of heat, meeting the heating demand of 4 million square metres by 2025, covering the main urban area of ​​Haiyan County and the entire area of ​​Shupu Town.

The Zhejiang Haiyan Nuclear Energy Heating Demonstration Project utilises the remaining thermal power from the Qinshan plant in winter to provide heating to public facilities, residential communities and industrial parks in Haiyan County without affecting the original power generation and safety performance of the reactors.

Qinshan is China's largest nuclear power plant, comprising seven reactors. Construction of Phase I of the plant - a 300 MWe pressurised water reactor (PWR) which was the first indigenously-designed Chinese nuclear power station to be built - began in 1985, with the unit entering commercial operation in 1994. Qinshan Phase II is home to four operating CNP-600 PWRs, built with a high degree of localisation. Units 1 and 2, comprising the first stage of Phase II, began operating in 2002 and 2004, respectively. Units 3 and 4 entered commercial operation in October 2010 and April 2021. Phase III consists of two 750 MWe pressurised heavy water reactors supplied by Atomic Energy of Canada Ltd and commissioned in 2002 and 2003.

China's Haiyang nuclear power plant in Shandong province officially started providing district heat to the surrounding area in November 2020. A trial of the project - the country's first commercial nuclear heating project - was carried out the previous winter, providing heat to 700,000 square metres of housing, including the plant's dormitory and some local residents. In 2021, the Haiyang Nuclear Energy Heating Project began providing heating to the entire Haiyang City.

In May, CNNC started work on a project at the Tianwan plant in China's Jiangsu province to supply steam to a nearby petrochemical plant. Due for completion at the end of 2023, it will be China's first industrial-use nuclear energy steam supply project. The facility is expected to supply 4.8 million tonnes of steam annually.
https://www.world-nuclear-news.org/Arti ... industrial

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Re: Le nucléaire en Chine

Message par energy_isere » 13 janv. 2023, 22:38

En rapport avec ce post du 26 mars 2022 : viewtopic.php?p=2340189#p2340189
CGN's first Hualong One reactor starts supplying electricity

11 January 2023

Unit 3 of the Fangchenggang nuclear power plant in China's Guangxi Autonomous Region has been connected to the grid for the first time, China General Nuclear (CGN) announced. The unit - the first of two demonstration Hualong One (HPR1000) reactors at the site - is scheduled to enter commercial operation in the second half of 2023.

Image
Fangchenggang unit 3 (Image: CGN)

The 1180 MWe (gross) pressurised water reactor was synchronised with the grid at 8:29pm on 10 January, CGN said, "marking that the unit has the ability to generate electricity and is moving towards the goal of commercial operation".

First concrete was poured for the nuclear island of unit 3 of the Fangchenggang plant - 39% owned by Guangxi Investment Group and 61% by CGN - in December 2015, while that for unit 4 was poured a year later. Unit 3 was originally expected to start up in 2019, with unit 4 scheduled to start up in 2020. Both their start-ups were subsequently postponed until 2022.

In January 2022, CGN announced that the start up of Fangchenggang 3 and 4 had been put back due to delays caused by the COVID-19 pandemic. It said the start of operation of unit 3 had been put back to the second half of 2022, with that of unit 4 expected in the first half of 2024. However, in December, CGN announced Fangchenggang 3 would now not begin operation until the first half of 2023.

The unit achieved first criticality - a sustained chain reaction - on 27 December.

The two demonstration units of China National Nuclear Corporation's (CNNC's) version of the Hualong One design at the Fuqing plant in Fujian province have both already started up. Unit 5 entered commercial operation on 30 January 2021, with unit 6 following on 25 March 2022.
https://www.world-nuclear-news.org/Arti ... upplying-e

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Re: Le nucléaire en Chine

Message par energy_isere » 18 févr. 2023, 12:05

Début de construction d'un réseau de chaleur de la centrale nucléaire de Haiyang sur 23 km pour chauffer 1 million d' habitants.
China starts building long-distance nuclear heating pipeline

17 February 2023

Construction has begun of a 23-kilometre-long pipe that will transport nuclear-generated heat from the Haiyang nuclear power plant in China's Shandong province to a wider area, State Power Investment Corp (SPIC) announced. The plant started providing district heat to the surrounding area in November 2020.

A ceremony was held on 4 February in the city of Yantai, near the Haiyang plant, to mark the start of construction of a pipeline to the city of Weihai.

"The heat pipe network marks the official start of China's first long-distance nuclear energy heat supply pipeline network project across prefecture-level cities," SPIC said. "It will realise cross-regional intercommunication and sharing of zero-carbon heat sources."

So far, the nuclear energy heating source project has completed an investment of CNY390 million (USD57 million), the company said. Installation of equipment at unit 2 of the Haiyang plant to extract heat began in July last year and has now been completed. The heating pipe network and pumping station in the plant are now being constructed.

The project is planned to be put into operation before the end of 2023, SPIC said.

The long-distance pipeline will have an annual heating capacity that can reach 9.7 million gigajoules, providing heat to a 13 million square metre area and meeting the needs of 1 million residents. This will replace the consumption of some 900,000 tonnes of coal, reducing carbon dioxide emissions by 1.65 million tonnes.

The Haiyang plant officially started providing district heat to the surrounding area in November 2020. A trial of the project - the country's first commercial nuclear heating project - was carried out the previous winter, providing heat to 700,000 square metres of housing, including the plant's dormitory and some local residents. Earlier in 2020, the project began providing heating to the entire Haiyang city.

The first phase of a district heating demonstration project at the Qinshan nuclear power plant in China's southern Zhejiang Province was commissioned in December 2021. The project is divided into three phases. The initial phase now provides nuclear energy-generated central heating to 460,000 square metres of accommodation in three residential areas and 5000 square metres of apartments for nearly 4000 residents of Haiyan County. The overall project goal is to have a nuclear heating area of ​​4 million square metres by 2025, covering the main urban area of ​​Haiyan County and the entire area of ​​Shupu Town.

Russia, several East European countries, Switzerland and Sweden have all had nuclear-fuelled district heating schemes, and heat from nuclear power plants has also been sent to industrial sites in several countries.
https://www.world-nuclear-news.org/Arti ... ear-heatin

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Re: Le nucléaire en Chine

Message par energy_isere » 11 mars 2023, 15:41

suite de ce post du 9 juillet 2022 viewtopic.php?p=2346851#p2346851
Reactor building internal structures completed at Chinese SMR

09 March 2023

The completion of the main internal structure of the reactor building for the ACP100 small modular reactor (SMR) demonstration project at the Changjiang nuclear power plant has been announced by China National Nuclear Corporation (CNNC).

Image
The construction site of the ACP100 at Changjiang (Image: CNNC)

CNNC said the pouring of concrete for the wall panels over 7 metres above the internal structure of reactor building "creates good conditions for the subsequent introduction of main equipment and the hoisting of the steel containment top head".

Compared with traditional nuclear power technology, "miniaturisation, modularisation, and integration" are the outstanding features of the ACP100 reactor - also referred to as the Linglong One - according to CNNC. "Its main body is wrapped in a steel safety shell, and the overall thickness of the concrete floor is over 7.5m. Because it has dense steel bars and many pre-embedded items, a small space structure and other characteristics, the construction is extremely complex," it added.

CNNC announced in July 2019 the launch of a project to construct an ACP100 reactor at Changjiang on China's island province of Hainan. The site is already home to two operating CNP600 PWRs, while the construction of the two Hualong One units began in March and December 2021. Both those units are due to enter commercial operation by the end of 2026.

First concrete for the multi-purpose 125 MWe pressurised water reactor (PWR) was poured on 13 July 2021, with a planned total construction period of 58 months. The final tank of concrete for the underground retaining walls of the conventional island of the reactor was poured in August last year. Equipment installation work commenced in December.

Under development since 2010, the ACP100 integrated PWR's preliminary design was completed in 2014. The major components of its primary coolant circuit are installed within the reactor pressure vessel. In 2016, the design became the first SMR to pass a safety review by the International Atomic Energy Agency.
https://www.world-nuclear-news.org/Arti ... mpleted-at

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Re: Le nucléaire en Chine

Message par energy_isere » 25 mars 2023, 16:18

suite de ce post du 14 mai 2022 viewtopic.php?p=2343225#p2343225

Début de construction du réacteur n° 4 de Sanmen :
Construction starts on fourth Sanmen unit

22 March 2023

The first concrete has been poured for the nuclear island of unit 4 at the Sanmen nuclear power plant, China National Nuclear Corporation (CNNC) has announced. It marks the official start of construction of the second of two CAP1000 pressurised water reactors planned as Phase II of the site in China's Zhejiang province.

Image
First concrete is poured for Sanmen unit 4 (Image: CNNC)

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https://www.world-nuclear-news.org/Arti ... anmen-unit

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Re: Le nucléaire en Chine

Message par energy_isere » 26 juil. 2023, 00:24

suite de ce post du 11 mars 2023 viewtopic.php?p=2364499#p2364499
Voici la cuve d’un mini réacteur nucléaire SMR chinois
Avec pas moins de 23 réacteurs en construction, la Chine a un programme nucléaire ambitieux. Parmi eux, le chantier de la tête de série d’une technologie chinoise de petit réacteur modulaire (SMR), concept que la Chine entend bien ne pas manquer. Le projet a récemment franchi un jalon majeur.

Laurent GAUTHIER 22 Juil 2023

Image
La cuve du SMR chinois ACP100 / Image : CFHI

Nous en étions restés, le 6 juillet 2022, à l’annonce de la réalisation avec succès de l’assemblage du cylindre de confinement supérieur du premier réacteur du modèle ACP100 de la China National Nuclear Corporation (CNNC). Ce chantier est important pour le principal énergéticien nucléaire de Chine, car il est la tête de série de sa technologie propriétaire de SMR (pour Small Modular Reactor, en français petit réacteur modulaire), technologie également appelée Linglong One.

L’enceinte de confinement est le principal élément de sécurité du réacteur, car elle a pour fonction d’assurer l’absence de dissémination de produits radioactifs dans l’environnement en cas d’accident dans le cœur du réacteur. Pour illustrer l’ampleur du chantier, dans la photo ci-dessus, le cylindre supérieur, en cours de levage, mesure environ 15 m et pèse 720 tonnes.

Le module central du réacteur est paré pour l’expédition
C’est en juillet 2023 que CNNC annonce que le module central du réacteur a passé les étapes finales de validation après fabrication en usine par China First Heavy Industry (CFHI). Cette étape était le préalable à son expédition pour le chantier de construction.

Précisons que l’ACP100 est un réacteur à eau pressurisée (REP), et que sa conception est dite « intégrée », c’est-à-dire que les principaux composants nécessaires à l’extraction de la chaleur du cœur nucléaire sont installés à l’intérieur de la cuve. Ainsi, ce qui est désigné comme « module central » comprend non seulement la cuve pressurisée, mais également les générateurs de vapeur.


La construction de Linglong One a débuté en 2019 sur le site de la centrale nucléaire de Changjiang, située dans la province de Hainan, dans le sud de la Chine. Le premier béton a été coulé le 13 juillet 2021, et la mise en service commerciale est prévue pour fin 2026.

Le réacteur est conçu pour la production d’électricité, le chauffage, la production de vapeur ou le dessalement de l’eau de mer. Il s’agit d’un SMR, donc par principale de petite taille : sa puissance nominale est, en effet, de 125 MWe. Il pourra néanmoins produire 1 TWh/an, soit l’équivalent de la consommation en électricité d’environ 200 000 foyers (français).
https://www.revolution-energetique.com/ ... r-chinois/

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Re: Le nucléaire en Chine

Message par energy_isere » 29 juil. 2023, 11:27

Dome hoisted into place on Xudapu 3

26 July 2023

The dome has been hoisted into place on the reactor building of Xudapu unit 3 in a single stage process, six months ahead of schedule, with China National Nuclear Corporation (CNNC) describing the project as "a model of global energy cooperation".

Image
(Image: CNNC)

The Xudapu unit, in Liaoning province, is one of four VVER-1200 reactors being supplied by Russia to China under a 2018 agreement. CNNC said units 3 and 4 at Xudapu were "expected to become a global benchmark in the field of nuclear safety".

It added that the area had seen winter temperatures as low as minus 20°C and said "all parties involved in the construction braved the severe cold, wind and snow, and fought against the bad weather from the beginning" while, all the time, insisting on putting safety and quality first.

In June 2018, Russia and China signed four agreements, including for the construction of two VVER-1200 reactors at the new Xudapu (also known as Xudabao) site. Agreements signed in June 2019 included a general contract for the construction of Xudapu units 3 and 4, as well as a contract for the supply of nuclear fuel. Rosatom is designing the nuclear island, supplying key equipment, as well as providing field supervision, installation supervision, and commissioning services for the supplied equipment. Turbine generators and balance of plant will be supplied by China.

Construction of Xudapu unit 3 began in July 2021, with that of unit 4 starting in May 2022.

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https://www.world-nuclear-news.org/Arti ... n-Xudapu-3

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Re: Le nucléaire en Chine

Message par energy_isere » 09 sept. 2023, 11:31

Les Chinois essayent une technique de construction modulaire pour leur réacteurs CAP1000
Landmark module installation at Sanmen 4

08 September 2023

The CA01 'super module' has been installed at unit 4 of the Sanmen nuclear power plant in China's Zhejiang province, marking a construction landmark for the CAP1000 reactor.

Image
The CA01 module is hoisted into place (Image: SNERDI)

Weighing 1046.2 tonnes and measuring more than 27 metres long, 29 metres wide and 24 metres high, the concrete and steel CA01 module sits inside the unit's containment module where it will house the plant's steam generators and other components. It is referred to as a super module because it is too large to be transported by road and rail, and was constructed on site.
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The CAP1000 reactor design - the Chinese version of the AP1000 - uses modular construction techniques, enabling large structural modules to be built at factories and then installed at the site.
https://www.world-nuclear-news.org/Arti ... t-Sanmen-4

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Re: Le nucléaire en Chine

Message par energy_isere » 14 oct. 2023, 10:32

Debut des travaux pour la construction du premier réacteur d'une série de 6 à Lianjiang
China's first nuclear power plant with super-large cooling towers being built in Guangdong

9 oct 2023

State Power Investment Corporation (SPIC) announced on Sunday that phase one construction of its Lianjiang nuclear power plant started on September 29. As the country's first nuclear power plant with super-large cooling towers, it is expected to reduce the amount of sea water used and to generate up to 70.2 billion kWh annually after its construction.

With a total investment of 130 billion yuan ($18.1 billion), the Lianjiang nuclear power plant is designed to have six pressurized water reactors, which can last for 60 years. The plant is scheduled to be operational in 2028, and it is the first nuclear project in China to have a recirculating seawater cooling system and super-large cooling towers.

The Lianjiang Nuclear power project is SPIC's first coastal nuclear power project in South China's Guangdong Province. As part of an integrated energy base, the power plant is expected to run in conjunction with hydrogen plants and power storage stations in the area.

The super-large cooling towers are designed to transfer the heat of the power plant to the atmosphere to reduce the amount of cooling seawater used, and to lower the heat of the drainage.

With super-large cooling towers, nuclear power plants can be more friendly to the marine environment and costal economy. It also allows nuclear power plants to be built in coastal areas where seawater is insufficient for direct cycle cooling, according to thepaper.cn.

To enhance energy security and promote green development, the State Council, China's cabinet, approved the construction of two nuclear power projects – Zhangzhou Phase II in East China's Fujian Province and Lianjiang Phase 1 in South China's Guangdong Province – in September 2022.

Since the beginning of 2023, construction has begun at Unit 4 of the Sanmen nuclear power plant, Haiyang nuclear power Unit 4 and Lianjiang nuclear power Unit 1, thepaper.cn reported.
http://www.ecns.cn/business/2023-10-09/ ... 8598.shtml
Concrete poured for first unit at China’s $18 billion Lianjiang nuclear power plant

By Neil Gerrard11 October 2023

Image
The first concrete pour at unit one of the Linjiang nuclear power plant (Image: SPIC)

A major new nuclear power plant construction project has seen the first concrete poured on the first unit of a project to build six reactors, set to cost an estimated $18 billion.

The work involved pouring concrete for the nuclear island of unit one at the Linjiang power plant in Guangdong province.

Unit one is the first of two 1250 Mwe CAP1000 reactors to be built at the site. Four more reactors will eventually be constructed. Once all six are in operation, they are expected to be able to produce 70.2 TWh of electricity per year.

China Power State Investment Corp (SPIC) said that the concrete pour had been completed seven hours ahead of schedule.

Unit one is expected to be completed by 2028.
https://www.international-construction. ... 15.article

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Re: Le nucléaire en Chine

Message par energy_isere » 08 nov. 2023, 10:57

suite de ce post du 26 juillet 2023 http://www.oleocene.org/phpBB3/viewtopi ... 5#p2374255

Mise en place du dome pour le petit réacteur ACP100
Containment shell in place for Chinese SMR

06 November 2023

The steel containment dome was successfully hoisted into place at the ACP100 small modular reactor (SMR) demonstration project at the Changjiang site on China's island province of Hainan, China National Nuclear Corporation (CNNC) has announced.

Image
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lire https://world-nuclear-news.org/Articles ... hinese-SMR

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Re: Le nucléaire en Chine

Message par energy_isere » 07 déc. 2023, 01:30

suite de ce post du 14 nov 2021 http://www.oleocene.org/phpBB3/viewtopi ... 4#p2330454
Nucléaire : la Chine met en service la première centrale au monde dite de quatrième génération

AFP le 06 déc. 2023

La Chine a mis en service mercredi la première centrale nucléaire au monde dite de quatrième génération, une avancée majeure du géant asiatique dans la course pour les réacteurs du futur.

La centrale de Shidao Bay, située dans le Shandong (est du pays), est alimentée par deux réacteurs à haute température refroidis par du gaz et non par de l'eau pressurisée.

"L'exploitation commerciale de la centrale de Shidao Bay a officiellement débuté", a rapporté mercredi l'agence officielle Chine nouvelle.

Il s'agit d'une première au monde pour ce type de réacteurs, selon l'agence.

Les réacteurs traditionnels permettent de produire de l'électricité à partir de l'énergie nucléaire. Mais ces modèles avancés (dits petits réacteurs modulaires ou SMR) peuvent servir à d'autres applications, notamment le chauffage, le dessalement de l'eau de mer ou encore la vapeur pour les besoins de l'industrie.

La Chine, qui cherche à s'émanciper du charbon pour l'alimentation de ses centrales, est en pointe dans la course aux nouveaux réacteurs.

Le pays cherche par ailleurs à réduire sa dépendance aux technologies étrangères, dans un contexte de tensions avec les pays occidentaux.

Plus de 90% des équipements de la centrale de Shidao Bay sont de conception chinoise, s'est félicité un responsable du projet, Zhang Yanxu, cité par Chine nouvelle.

La construction de la centrale a débuté en 2012. Un premier SMR avait été raccordé au réseau électrique en décembre 2021.

La capacité de Shidao Bay est de 200 MW, d'après les médias locaux.

Selon leurs promoteurs, les réacteurs SMR pourraient jouer un rôle central dans la décarbonation et la transition énergétique, grâce à une architecture compacte et simplifiée, une conception en modules réduisant les coûts et la durée de construction, et leur usage multiple.

Selon l'Agence internationale de l'énergie atomique (AIEA), plus de 80 projets sont en cours de développement dans 18 pays.
https://www.connaissancedesenergies.org ... ion-231206

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Centrale nucléaire à réacteur refroidi au gaz à haute température de Shidaowan, Chine, décembre 2023. SUN WENZHAN /XINHUA / MAXPPP

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