Naie power station is a 350 MW coal power station in Hokkaido, Japan. It ranks #166 of 692 Japan power plants by installed capacity. Commissioned in 1969, it is around 57 years old — an older, legacy facility. Its modelled annual emissions are 1,945,600 t CO₂/yr (Climate TRACE), equivalent to about 454k cars driven for a year. In context, coal supplies about 32.1% 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 WRI1020030.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.
capacity: Wikidata P2109; fuel: WRI GPPD
At 350 MW, Naie power station is well above the median coal plant in Japan (250 MW). Technically it is described as subcritical. Its current lifecycle status is “Mothballed” — so it is not yet, or no longer, generating at full output. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.
The #38 largest coal power plant of 94 in Japan by capacity.
Japan has 94 coal power plants in this dataset, together about 53,431 MW of capacity.
Coordinates 43.422, 141.8439 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Naie power station is a 350 MW coal power plant in Hokkaido, Japan, commissioned in 1969.
Naie power station has modelled emissions of about 1,945,600 tonnes of CO₂ per year (Climate TRACE).
