Ashihama nuclear power plant is a 2,600 MW nuclear power station in Mie Prefecture, Japan. It ranks #22 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 GEM_nuc_ashihama_japan.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM Global Nuclear Power Tracker September 2025 unit-status sum (cancelled); fuel: GEM GNPT
In context: how this plant compares
At 2,600 MW, Ashihama nuclear power plant is well above the median nuclear plant in Japan (2,070 MW). Its current lifecycle status is “Cancelled” — 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 #9 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
- Iidaka Solar Power Plant · Solar · 1.9 MW · Mie
- Owase Mita · Oil · 875 MW · Mie
- Yamamuro · Solar · 15 MW · Mie
- Ise Futami Solar Power Plant · Solar · 7.7 MW · Mie
- Meiwa · Solar · 5 MW · Mie
- Ikehara · Hydro · 350 MW · Mie
Location
Coordinates 34.2203, 136.4263 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Ashihama nuclear power plant?
Ashihama nuclear power plant is a 2,600 MW nuclear power plant in Mie Prefecture, Japan.