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Sanmen nuclear power plant

Sanmen nuclear power plant is a nuclear power station in China with 2 operating units totalling 2,502 MW gross. The site has 6 units on record in total.

Operating1Under construction1circle area ∝ site capacity Coastlines, borders and lakes: Natural Earth (1:10 million, public domain), which is generalised, so a coastal plant can sit a couple of kilometres off its true shoreline. Site positions: Global Nuclear Power Tracker.
Units on record
6
Operating
2
Operating capacity
2,502MW
Country

Units

UnitStatusTypeModelGross MWOnline
Unit 1-1 Operating PWR AP-1000 1,251 2018
Unit 1-2 Operating PWR AP-1000 1,251 2018
Unit 2-3 Under construction PWR CAP1000 1,251 -
Unit 2-4 Under construction PWR CAP1000 1,251 -
Unit 3-5 Pre-construction PWR HPR-1000 1,200 2027
Unit 3-6 Pre-construction PWR HPR-1000 1,200 2028

Unit by unit

Each unit's rating, type and milestone dates as recorded by the Global Nuclear Power Tracker, with any correction we made to it. A dash or "not disclosed" means the source does not give the value.

Sanmen nuclear power plant 1-1 Operating

Reactor typePressurised water reactor (PWR)
ModelAP-1000
Size classLarge
Gross capacity1,251MW
Net capacity1,157MW
Thermal output3,400MWt
Enrichment3–5% U-235
NSSS vendorWestinghouse Electric Company
OwnerChina National Nuclear Power Co Ltd100%
OperatorSanmen Nuclear Power
Construction start1 Apr 2009
First criticality21 Jun 2018
Grid connection30 Jun 2018
Commercial operation21 Sep 2018

Sanmen nuclear power plant 1-2 Operating

Reactor typePressurised water reactor (PWR)
ModelAP-1000
Size classLarge
Gross capacity1,251MW
Net capacity1,157MW
Thermal output3,400MWt
Enrichment3–5% U-235
NSSS vendorWestinghouse Electric Company
OwnerChina National Nuclear Power Co Ltd100%
OperatorSanmen Nuclear Power
Construction start1 Dec 2009
First criticality17 Aug 2018
Grid connection24 Aug 2018
Commercial operation5 Nov 2018

Sanmen nuclear power plant 2-3 Under construction

Reactor typePressurised water reactor (PWR)
ModelCAP1000
Size classLarge
Gross capacity1,251MW
Net capacity1,163MW
Thermal output3,400MWt
Enrichment3–5% U-235
NSSS vendorState Power Investment Corporation
OwnerChina National Nuclear Power Co Ltd100%
OperatorSanmen Nuclear Power
Construction start28 Jun 2022

Sanmen nuclear power plant 2-4 Under construction

Reactor typePressurised water reactor (PWR)
ModelCAP1000
Size classLarge
Gross capacity1,251MW
Net capacity1,163MW
Thermal output3,400MWt
Enrichment3–5% U-235
NSSS vendorState Power Investment Corporation
OwnerChina National Nuclear Power Co Ltd100%
OperatorSanmen Nuclear Power
Construction start22 Mar 2023

Sanmen nuclear power plant 3-5 Pre-construction

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,200MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina National Nuclear Power Co Ltd100%
OperatorSanmen Nuclear Power
Commercial operation1 Jan 2027

Sanmen nuclear power plant 3-6 Pre-construction

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,200MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina National Nuclear Power Co Ltd100%
OperatorSanmen Nuclear Power
Commercial operation1 Jan 2028

Sanmen nuclear power plant in context

By gross operating capacity Sanmen nuclear power plant is the 10th largest of 18 operating nuclear sites in China, holding 4% of the country's operating capacity, and ranks 57th of 172 worldwide.

Its operating units started up in 2018; the median unit is 8.0 years old, younger than the median of 10.0 in China.

The 2 units with both construction and grid dates on record took 8.7 to 9.2 years (median 9.0) from construction start to grid connection; the median across all reactors connected in the 2010s is 5.9 years.

The nearest other tracked nuclear sites are Jinqimen nuclear power plant (31 km), Fangjiashan nuclear power plant (163 km) and Qinshan nuclear power plant (163 km).

Build time by unit

UnitConstruction startGrid connectionYearsFleet median, same decade
Unit 1-1200920189.25.9 (2010s)
Unit 1-2200920188.75.9 (2010s)

Nearest tracked nuclear sites

How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.

Site detail
LocationJiantiao, Zhejiang, China
Coordinates29.1019, 121.6390
Elevationabout 15 mabove sea level
SettingOn the sea coast, 1.4 km from the water
RegionEastern Asia
Units by status
Operating: 2
Under construction: 2
Pre-construction: 2

Elevation is read at the listed coordinates from a 30 m terrain model (SRTM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.

Owners & operators
Owners
China National Nuclear Power Co Ltd
Operators
Sanmen Nuclear Power

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Sources

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