Tokai Daini — Japan

Tokai Daini is a 1,100 MW nuclear power station in Ibaraki, Japan. It ranks #92 of 692 Japan power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 9.1% of Japan's electricity; the national grid averages 477 gCO₂/kWh (32.7% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000689.

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: WRI GPPD; fuel: WRI GPPD

In context: how this plant compares

At 1,100 MW, Tokai Daini is below the median nuclear plant in Japan (2,070 MW). Technically it is described as gas-cooled reactor. Its current lifecycle status is “Construction” — so it is not yet, or no longer, generating at full output. Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #20 largest nuclear power plant of 24 in Japan by capacity.

Japan has 24 nuclear power plants in this dataset, together about 58,491 MW of capacity.

Nearby power plants

• Hitachinaka power station · Coal · 2,000 MW · Ibaraki
• Japan Power Demonstration Reactor nuclear power plant · Nuclear · 13 MW · Ibaraki Prefecture
• Kanto Mill power station · Biomass · 43 MW · Ibaraki
• Rinkai power station · Gas · 181 MW · Ibaraki
• Mito Solar Power Plant · Solar · 39.2 MW · Ibaraki
• Mito Haru · Solar · 9.3 MW · Ibaraki

Location

Coordinates 36.4215, 140.6028 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions