Sanmen Nuclear Power Station

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Sanmen Nuclear Power Station
Sanmen Nuclear Power Station.jpg
Sanmen Nuclear Power Station is located in China
Sanmen Nuclear Power Station
Location of Sanmen Nuclear Power Station
Country China
Location Sanmen County, Taizhou, Zhejiang
Coordinates 29°6′4″N 121°38′31″E / 29.10111°N 121.64194°E / 29.10111; 121.64194Coordinates: 29°6′4″N 121°38′31″E / 29.10111°N 121.64194°E / 29.10111; 121.64194
Construction began Unit 1: April 19, 2009
Unit 2: December 15, 2009
Commission date 2018 (planned)
Construction cost CNY 40.1 billion ($6.12 billion USD, estimate only)[1]
Owner(s) China National Nuclear Corporation (CNNC) [2]
Operator(s) Sanmen Nuclear Power[2]
(subsidiary of CNNC)[3]
Nuclear power station
Reactor type PWR
Reactor supplier Westinghouse
Cooling source Shefan Channel
Power generation
Make and model Westinghouse AP1000
Units under const. 2 × 1100 MW
Units planned 2 × 1100 MW
Thermal capacity 2 × 3400 MWth (planned)
Nameplate capacity 2200 MW (planned)

The Sanmen Nuclear Power Station (Chinese: 三门核电站) is a nuclear power station under construction in Sanmen County, Zhejiang Province in China. Groundbreaking for the first and second units was held February 26, 2008.[4][5]

Sanmen NPS will be the first implementation of the AP1000 pressurized water reactor (PWR) developed by Westinghouse Electric Company. The contract was agreed in July 2007.[6] Announcement of the project start came roughly twelve months after Westinghouse won a bidding contest over other companies. The contract for the new plant involved The Shaw Group (now Chicago Bridge and Iron), a minority shareholder in Westinghouse. Westinghouse is controlled by Japanese Toshiba. The Shaw Group will provide engineering, procurement, commissioning, information management and project management services.[6] The first pair of reactors were estimated to cost more than 40 billion yuan (US$5.88 billion).[7]

Excavation for the first unit was completed in September 2008. Quality of the pit was certified, putting the project 67 days ahead of schedule.[8] Construction of Sanmen Unit 1 began on April 19, 2009, as the first 5,200  of concrete were poured for the foundation, in a ceremony attended by State Nuclear Power Technology Corporation (SNPTC) chair Wang Binghua and Westinghouse CEO Aris Candris.[9][10] First concrete for Sanmen 2 was poured on December 15, 2009.[11]

In June 2014, China First Heavy Industries completed the first domestically produced AP1000 reactor pressure vessel for the second AP1000 unit.[12]

The units were originally projected to begin operation in 2014 and 2015. In April 2015, a start date of 2016 was projected for both.[13] One month later, the start date was put back to 2017.[14][15] In January 2017 China National Nuclear Corporation (CNNC) announced that the final reactor coolant pump had been installed with start of operations still foreseen for 2017.[16] As of March 2018, Sanmen 1 has completed pre-fuelling safety checks but is not expected to be connected to the grid until the fall of 2018 at the earliest.[17] Hot testing of Sanmen 1 was completed in June 2017, and fuel loading started on April 25, 2018. It subsequently became the first AP1000 reactor in the world to achieve first criticality at 2:09 AM on June 21, 2018,[18] and was connected to the grid on June 30, 2018.[19]

Unit Type Construction start First criticality Grid connection Commercial operation Notes
Phase I
Sanmen 1 AP1000 April 19, 2009 June 21, 2018[20] June 30, 2018[19] [21]
Sanmen 2 AP1000 December 15, 2009 2018 2018 2018 [21]

See also


  1. ^ "China Nuclear Power | Chinese Nuclear Energy - World Nuclear Association". World Nuclear Association. Retrieved 17 October 2017. 
  2. ^ a b "Nuclear Power Reactor Details - SANMEN 1". Power Reactor Information System (PRIS). International Atomic Energy Agency. Archived from the original on 2011-06-04. Retrieved 2009-12-16. 
  3. ^ 浙江三门核电站 [Zhejiang Sanmen Nuclear Power Station] (in Chinese). China Nuclear Engineering & Construction Corporation. Retrieved 1 July 2018. 
  4. ^ "First 3rd-generation nuclear plant to be built". Xinhua News Agency. 2008-02-27. Retrieved 2008-07-30. 
  5. ^ "Nuclear power in China". Information Papers: Country Briefings. World Nuclear Association (WNA). June 2008. Retrieved 2009-12-16. 
  6. ^ a b "Westinghouse and Shaw Sign Historic Contracts to Provide Four AP1000 Nuclear Power Plants in China". Business Wire. 24 July 2007. Retrieved 16 January 2014. 
  7. ^ "China starts building 3rd-generation nuclear power reactors using Westinghouse technologies". Xinhua. April 19, 2009. Retrieved 2009-04-21. 
  8. ^ "Sanmen excavation completed early". World Nuclear News. 2008-09-02. Retrieved 2017-02-18. 
  9. ^ "1st phase of Sanmen nuclear plant under construction in E China Archived 2009-04-23 at the Wayback Machine.". Xinhua. April 19, 2009.
  10. ^ "First concrete at Sanmen". World Nuclear News. WNA. April 20, 2009. Retrieved 2009-12-16. 
  11. ^ "Sanmen 2 under construction". World Nuclear News. WNA. 16 December 2009. Retrieved 2009-12-16. 
  12. ^ "China produces first AP1000 vessel". World Nuclear News. 11 June 2014. Retrieved 6 August 2014. 
  13. ^ "Steam generator installation under way at Sanmen 2". World Nuclear News. 24 April 2015. Retrieved 28 May 2015. 
  14. ^ "Newbuild: CNNC Reveals New Delay at Sanmen -- to 2017". Nuclear Intelligence Group. 29 May 2015. Retrieved 6 February 2016. 
  15. ^ "More delays for China's first AP1000". Nuclear Engineering International. 11 March 2016. Retrieved 12 March 2016. 
  16. ^ "Construction milestones at new Chinese units". World Nuclear News. 2017-01-05. Retrieved 2017-02-18. 
  17. ^ "Nuclear News Weekly Roundup – 02/25 - 03/04". 
  18. ^ "Chinese AP1000s pass commissioning milestones". 22 June 2018. Retrieved 23 June 2018. 
  19. ^ a b "First Westinghouse AP1000 Plant Sanmen 1 Begins Synchronization to Electrical Grid". Retrieved 2018-07-02. 
  20. ^ "PRIS - Reactor Details - SANMEN-1". Retrieved 2 July 2018. 
  21. ^ a b "Hot testing of Sanmen 2 AP1000 completed". Retrieved 15 March 2018. 

External links

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