Tokai nuclear power plant
Tokai nuclear power plant is a nuclear site in Japan with 2 units on record. None is currently operating.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| Unit 1 | Retired | GCR | MAGNOX | 166 | 1966 |
| Unit 2 | Mothballed | BWR | BWR-5 | 1,100 | 1978 |
Tokai nuclear power plant in context
The one unit with both construction and grid dates on record took 4.7 years from construction start to grid connection; the median across all reactors connected in the 1960s is 5.0 years.
The nearest other tracked nuclear sites are Kashiwazaki Kariwa nuclear power plant (211 km) and Onagawa nuclear power plant (234 km).
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| Unit 1 | 1961 | 1965 | 4.7 | 5.0 (1960s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Kashiwazaki Kariwa nuclear power plant | Japan | 211 km | 1.4 |
| Onagawa nuclear power plant | Japan | 234 km | 0.8 |
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.
| Location | Hitachinaka, Ibaraki, Japan |
|---|---|
| Coordinates | 36.4215, 140.6028 |
| Elevation | about 5 mabove sea level |
| Setting | On the sea coast, 0.7 km from the water |
| Region | Eastern Asia |
| Units by status | Retired: 1 Mothballed: 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 | Japan Atomic Power Co |
|---|---|
| Operators | Japan Atomic Power |
Put this plant on your own page: embed a card, or compare it with another plant.
Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data