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Atucha nuclear power plant

Atucha nuclear power plant is a nuclear power station in Argentina with 2 operating units totalling 1,107 MW gross. The site has 7 units on record in total.

Operating1Shelved1circle 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
7
Operating
2
Operating capacity
1,107MW
Country

Units

UnitStatusTypeModelGross MWOnline
Unit 1 Operating PHWR PHWR KWU 362 1974
Unit 2 Operating PHWR PHWR KWU 745 2016
Unit 3 Shelved PWR Hualong One 1,150 -
Unit SMR 1 Announced - ACR-300 300 2030
Unit SMR 2 Announced - ACR-300 300 -
Unit SMR 3 Announced - ACR-300 300 -
Unit SMR 4 Announced - ACR-300 300 -

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.

Atucha nuclear power plant 1 Operating

Reactor typePressurised heavy water reactor (PHWR)
ModelPHWR KWU
Size classLarge
Gross capacity362MW
Net capacity340MW
Thermal output1,179MWt
EnrichmentNatural uranium, 0.71% U-235no enrichment required
NSSS vendornot on record
OwnerNucleoelectrica Argentina SA100%
OperatorNucleoelectrica Argentina
Construction start1 Jun 1968
First criticality13 Jan 1974
Grid connection19 Mar 1974
Commercial operation24 Jun 1974

Atucha nuclear power plant 2 Operating

Reactor typePressurised heavy water reactor (PHWR)
ModelPHWR KWU
Size classLarge
Gross capacity745MW
Net capacity693MW
Thermal output2,160MWt
EnrichmentNatural uranium, 0.71% U-235no enrichment required
NSSS vendornot on record
OwnerNucleoelectrica Argentina SA100%
OperatorNucleoelectrica Argentina
Construction start13 Jul 1981
First criticality2 Jun 2014
Grid connection24 Jun 2014
Commercial operation25 May 2016

Atucha nuclear power plant 3 Shelved

Reactor typePressurised water reactor (PWR)
ModelHualong One
Size classLarge
Gross capacity1,150MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichment3–5% U-235
NSSS vendornot on record
OwnerChina National Nuclear Corp100%
OperatorNucleoelectrica Argentina
Milestonesno dates on record

Atucha nuclear power plant SMR 1 Announced

Reactor typesmall modular reactor
ModelACR-300
Size classSmall
Gross capacity300MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichmentnot established
NSSS vendornot on record
Commercial operation1 Jan 2030

Atucha nuclear power plant SMR 2 Announced

Reactor typesmall modular reactor
ModelACR-300
Size classSmall
Gross capacity300MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichmentnot established
NSSS vendornot on record
Milestonesno dates on record

Atucha nuclear power plant SMR 3 Announced

Reactor typesmall modular reactor
ModelACR-300
Size classSmall
Gross capacity300MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichmentnot established
NSSS vendornot on record
Milestonesno dates on record

Atucha nuclear power plant SMR 4 Announced

Reactor typesmall modular reactor
ModelACR-300
Size classSmall
Gross capacity300MW
Net capacitynot disclosed
Thermal outputnot disclosed
Enrichmentnot established
NSSS vendornot on record
Milestonesno dates on record

Atucha nuclear power plant in context

By gross operating capacity Atucha nuclear power plant is the 1st largest of 2 operating nuclear sites in Argentina, holding 63% of the country's operating capacity, and ranks 138th of 172 worldwide.

Its operating units started up between 1974 and 2016; the median unit is 31.0 years old, younger than the median of 42.0 in Argentina.

The 2 units with both construction and grid dates on record took 5.8 to 32.9 years (median 19.4) from construction start to grid connection; the median across all reactors connected in the 2010s is 5.9 years.

No other nuclear site with an exact position in this dataset lies within 300 km.

2 operating units are rated differently now from their design net capacities: Unit 1 +6.6% and Unit 2 +0.1%.

Build time by unit

UnitConstruction startGrid connectionYearsFleet median, same decade
Unit 1196819745.85.4 (1970s)
Unit 21981201432.95.9 (2010s)

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
LocationBuenos Aires, Argentina
Coordinates-33.9670, -59.2095
Elevationabout 25 mabove sea level
SettingAbout 70 km from the sea
RegionLatin America and the Caribbean
Units by status
Operating: 2
Shelved: 1
Announced: 4

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
Nucleoelectrica Argentina SA
China National Nuclear Corp
Operators
Nucleoelectrica Argentina

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Sources

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