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Ikata

Ikata, nuclear power plant in Japan, operates one pressurized water reactor with 846 MW net installed capacity and has been in service since 1977.

Unit Ikata 3 has been operating for 32 years, since 1994. Its 846 MW net are enough to supply about 2,660,000 households.

Country
Japan
Units
3
Technology
PWR
Net capacity
846 MWe
First grid connection
1977
Operator
Shikoku Electric Power
Owner
Shikoku Electric Power Co Inc
Status
Operating
Operating capacity
846 MWe
net electrical
Units
3
1 operating
First start-up
1977
Ikata
Photo: Wikimedia Commons · author and license

Units

UnitTypeModelStatusMWeMWtConstruction startGrid connectionClosureLoad factor
Ikata 1Pressurized water (PWR)Mitsubishi 2-loop (M 2LP)Shut down5381,650Sep 1973Feb 1977May 2016—
Ikata 2Pressurized water (PWR)Mitsubishi 2-loop (M 2LP)Shut down5381,650Aug 1978Aug 1981May 2018—
Ikata 3Pressurized water (PWR)Mitsubishi 3-loop (M 3LP)Operating8462,660Oct 1, 1990Mar 29, 1994—77.5 % (2024)

Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026

Ikata 1, a 538 MWe PWR (Mitsubishi 2-loop (M 2LP)), started construction in 1973 and operated from 1977 to 2016.

Ikata 2, a 538 MWe PWR (Mitsubishi 2-loop (M 2LP)), started construction in 1978 and operated from 1981 to 2018.

Ikata 3, an 846 MWe PWR (Mitsubishi 3-loop (M 3LP)), started construction in 1990, was connected to the grid in 1994 and is still operating, with a 77.5% load factor in 2024.

Operator: Shikoku Electric Power.

Owner: Shikoku Electric Power Co Inc (Ikata 1, Ikata 2, Ikata 3).

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