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Tokai

Tokai, nuclear power plant in Japan, has one boiling water reactor with 1,060 MW net installed capacity, with operation suspended.

Unit Tokai 2 has been operating for 48 years, since 1978. Its 1,060 MW net are enough to supply about 3,340,000 households.

Country
Japan
Units
2
Technology
GCR · BWR
Net capacity
1,060 MWe
First grid connection
1966
Operator
Japan Atomic Power
Owner
Japan Atomic Power Co
Status
Operation suspended
Operating capacity
1,060 MWe
net electrical
Units
2
0 operating · 1 suspended
First start-up
1966
Tokai
Photo: Wikimedia Commons · author and license

Units

UnitTypeModelStatusMWeMWtConstruction startGrid connectionClosureLoad factor
Tokai 1Gas-cooled (GCR / AGR)MagnoxShut down137587Mar 1961Nov 1965Mar 1998—
Tokai 2Boiling water (BWR)BWR-5Offline, awaiting restart1,0603,293Oct 1973Mar 1978——

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

Tokai 1, a 137 MWe GCR (Magnox), started construction in 1961 and operated from 1965 to 1998.

Tokai 2, a 1,060 MWe BWR (BWR-5), started construction in 1973, was connected to the grid in 1978 and is currently suspended.

Operator: Japan Atomic Power.

Owner: Japan Atomic Power Co (Tokai 1, Tokai 2).

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