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.
Data status
Known data
Modelled source 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: Wikidata P2109; fuel: WRI GPPD
In context: how this plant compares
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.
~1,945,600 t CO₂/yr (modelled) — in everyday terms
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.
How it compares & nearby plants
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.
Nearby power plants
- Sunagawa Daini power station · Coal · 250 MW · Hokkaido
- Izamizawa Solar Power Plant · Solar · 9 MW · Hokkaido
- Nokanan · Hydro · 30 MW · Hokkaido
- Takisato · Hydro · 57 MW · Hokkaido
- Oji Green Energy Ebetsu power station · Biomass · 25.4 MW · Hokkaido
- Ishikari Bay power station · Biomass · 52 MW · Hokkaido
Location
Coordinates 43.422, 141.8439 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Naie power station?
Naie power station is a 350 MW coal power plant in Hokkaido, Japan, commissioned in 1969.
How much CO₂ does Naie power station emit?
Naie power station has modelled emissions of about 1,945,600 tonnes of CO₂ per year (Climate TRACE).