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
See also: alerts for this plant · every plant in Japan · Vendor: British nuclear consortia (NPC, APC, EE/B&W/T, GEC, NNC) · Vendor: General Electric · every GCR reactor · how a GCR works · every BWR reactor · how a BWR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Tokai 1 | Gas-cooled (GCR / AGR) | Magnox | Shut down | 137 | 587 | Mar 1961 | Nov 1965 | Mar 1998 | — |
| Tokai 2 | Boiling water (BWR) | BWR-5 | Offline, awaiting restart | 1,060 | 3,293 | Oct 1973 | Mar 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).