Shimonoseki power station is a 575 MW other power station in Yamaguchi, Japan. It is operated by The Chugoku Electric Power Co Inc. Based on its capacity (estimated), it can supply roughly 432k homes (estimated). It ranks #139 of 692 Japan power plants by installed capacity. In context, the national grid averages 477 gCO₂/kWh (32.7% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5377.
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: Wikidata P2109; fuel: Not available
In context: how this plant compares
At 575 MW, Shimonoseki power station is well above the median other plant in Japan (122.4 MW). This facility converts its energy source into electricity for the grid; its capacity, fuel type and location determine its role in the national power mix.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Japan other capacity
- 19.2% of 2,999 MW across 15 plants in this dataset
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest other plants in Japan
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by The Chugoku Electric Power Co Inc.
Local climate & thermal context
This other plant generates electricity for the grid. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 34.0°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 36% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 35/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
Site climate & environmental severity
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #2 largest other power plant of 15 in Japan by capacity.
Japan has 15 other power plants in this dataset, together about 2,999 MW of capacity.
Nearby power plants
- Tsunemi 1 · Solar · 5.9 MW · Fukuoka
- Sanyo Onoda Solar Power Plant · Solar · 21 MW · Yamaguchi
- Shin Onoda power station · Coal · 1,000 MW · Yamaguchi
- Yawata Works power station · Coal · 149 MW · Yamaguchi
- Tsunemi 2 · Solar · 8.5 MW · Fukuoka
- Shinmoji Incineration Plant · Biomass · 23.5 MW · Fukuoka
Location
Coordinates 34.0019, 131.001 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Shimonoseki power station?
Shimonoseki power station is a 575 MW other power plant in Yamaguchi, Japan.
Who operates Shimonoseki power station?
Shimonoseki power station is operated by The Chugoku Electric Power Co Inc.