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Sendai nuclear power plant

Sendai nuclear power plant is a nuclear power station in Japan with 2 operating units totalling 1,780 MW gross. The site has 3 units on record in total.

Operating1circle 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
3
Operating
2
Operating capacity
1,780MW
Country

Units

UnitStatusTypeModelGross MWOnline
Unit 1 Operating PWR M (3-loop) 890 1984
Unit 2 Operating PWR M (3-loop) 890 1985
Unit 3 Shelved PWR Mitsubishi advanced pressurized water reactor (APWR) 1,590 -

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.

Sendai nuclear power plant 1 Operating

Reactor typePressurised water reactor (PWR)
ModelMitsubishi 3-loop
Size classLarge
Gross capacity890MW
Net capacity846MW
Thermal output2,660MWt
Enrichment3–5% U-235
NSSS vendorMitsubishi Heavy Industries
OwnerKyushu Electric Power Co Inc100%
OperatorKyushu Electric Power
Construction start15 Dec 1979
First criticality25 Aug 1983
Grid connection16 Sep 1983
Commercial operation4 Jul 1984

Sendai nuclear power plant 2 Operating

Reactor typePressurised water reactor (PWR)
ModelMitsubishi 3-loop
Size classLarge
Gross capacity890MW
Net capacity846MW
Thermal output2,660MWt
Enrichment3–5% U-235
NSSS vendorMitsubishi Heavy Industries
OwnerKyushu Electric Power Co Inc100%
OperatorKyushu Electric Power
Construction start12 Oct 1981
First criticality18 Mar 1985
Grid connection5 Apr 1985
Commercial operation28 Nov 1985

Sendai nuclear power plant 3 Shelved

Reactor typePressurised water reactor (PWR)
ModelMitsubishi advanced pressurized water reactor (APWR)
Size classLarge
Gross capacity1,590MW
Net capacitynot disclosed
Thermal output4,466MWt
Enrichment3–5% U-235
NSSS vendornot on record
OwnerKyushu Electric Power Co Inc100%
OperatorKyushu Electric Power
Milestonesno dates on record

Sendai nuclear power plant in context

By gross operating capacity Sendai nuclear power plant is the 4th largest of 9 operating nuclear sites in Japan, holding 12% of the country's operating capacity, and ranks 106th of 172 worldwide.

Its operating units started up between 1984 and 1985; the median unit is 41.5 years old, older than the median of 35.0 in Japan.

The 2 units with both construction and grid dates on record took 3.5 to 3.8 years (median 3.6) from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.

The nearest other tracked nuclear sites are Genkai nuclear power plant (190 km) and Ikata nuclear power plant (271 km).

Build time by unit

UnitConstruction startGrid connectionYearsFleet median, same decade
Unit 1197919833.87.3 (1980s)
Unit 2198119853.57.3 (1980s)

Nearest tracked nuclear sites

SiteCountryDistanceOperating GW gross
Genkai nuclear power plantJapan190 km2.4
Ikata nuclear power plantJapan271 km0.9

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
LocationSatsumasendai, Kagoshima, Japan
Coordinates31.8335, 130.1887
Elevationabout 10 mabove sea level
SettingOn the sea coast
RegionEastern Asia
Units by status
Operating: 2
Shelved: 1

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
Kyushu Electric Power Co Inc
Operators
Kyushu Electric Power

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Sources

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