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Cangnan San'ao nuclear power plant

Cangnan San'ao nuclear power plant is a nuclear power station in China with 1 operating unit totalling 1,215 MW gross. The site has 6 units on record in total.

Operating2Pre-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
1
Operating capacity
1,215MW
Country

Units

UnitStatusTypeModelGross MWOnline
Unit 1-1 Operating PWR HPR-1000 1,215 2026
Unit 1-2 Under construction PWR HPR-1000 1,210 2026
Unit 2-3 Under construction PWR HPR-1000 1,215 -
Unit 2-4 Pre-construction PWR HPR-1000 1,150 -
Unit 3-5 Announced PWR HPR-1000 1,150 -
Unit 3-6 Announced PWR HPR-1000 1,150 -

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.

Cangnan San'ao nuclear power plant 1-1 Operating

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,215MW
Net capacity1,117MW
Thermal output3,180MWt
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina General Nuclear Power Group Co Ltd100%
OperatorCGN Cangnan Nuclear Power
Construction start31 Dec 2020
First criticality14 Feb 2026
Grid connection12 Mar 2026
Commercial operation29 Apr 2026

Cangnan San'ao nuclear power plant 1-2 Under construction

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,210MW
Net capacity1,117MW
Thermal output3,180MWt
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina General Nuclear Power Group Co Ltd100%
OperatorCGN Cangnan Nuclear Power
Construction start30 Dec 2021
Commercial operation1 Jan 2026

Cangnan San'ao nuclear power plant 2-3 Under construction

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,215MW
Net capacity1,208MW
Thermal output3,180MWt
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina General Nuclear Power Group Co Ltd100%
OperatorCGN Cangnan Nuclear Power
Construction start19 Nov 2025

Cangnan San'ao nuclear power plant 2-4 Pre-construction

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,150MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina General Nuclear Power Group Co Ltd100%
OperatorCGN Cangnan Nuclear Power
Milestonesno dates on record

Cangnan San'ao nuclear power plant 3-5 Announced

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,150MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina General Nuclear Power Group Co Ltd100%
OperatorCGN Cangnan Nuclear Power
Milestonesno dates on record

Cangnan San'ao nuclear power plant 3-6 Announced

Reactor typePressurised water reactor (PWR)
ModelHPR-1000
Size classLarge
Gross capacity1,150MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichment3–5% U-235
NSSS vendorChina National Nuclear Corporation
OwnerChina General Nuclear Power Group Co Ltd100%
OperatorCGN Cangnan Nuclear Power
Milestonesno dates on record

Cangnan San'ao nuclear power plant in context

By gross operating capacity Cangnan San'ao nuclear power plant is the 17th largest of 18 operating nuclear sites in China, holding 2% of the country's operating capacity, and ranks 133rd of 172 worldwide.

Its operating unit started up in 2026; the unit is 0.0 years old, younger than the median of 10.0 in China.

The one unit with both construction and grid dates on record took 5.2 years from construction start to grid connection; the median across all reactors connected in the 2020s is 7.7 years.

The nearest other tracked nuclear sites are Ningde nuclear power plant (29 km), Fuqing nuclear power plant (223 km) and Sanmen nuclear power plant (238 km).

The current net rating of Unit 1-1 differs from its design net capacity by -7.5% (1,208 MW at design, 1,117 MW now).

Build time by unit

UnitConstruction startGrid connectionYearsFleet median, same decade
Unit 1-1202020265.27.7 (2020s)

Nearest tracked nuclear sites

SiteCountryDistanceOperating GW gross
Ningde nuclear power plantChina29 km4.4
Fuqing nuclear power plantChina223 km6.7
Sanmen nuclear power plantChina238 km2.5

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
LocationXiaguan, Zhejiang, China
Coordinates27.2002, 120.5157
Elevationabout 20 mabove sea level
SettingOn the sea coast, 0.1 km from the water
RegionEastern Asia
Units by status
Operating: 1
Under construction: 2
Pre-construction: 1
Announced: 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 General Nuclear Power Group Co Ltd
Operators
CGN Cangnan Nuclear Power

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Sources

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