Marusumi Paper Ohe Mill power station — Japan

Marusumi Paper Ohe Mill power station is a 132.5 MW other power station in Ehime, Japan. It is operated by Marusumi Paper Co Ltd. Based on its capacity (estimated), it can supply roughly 99k homes (estimated). It ranks #221 of 692 Japan power plants by installed capacity. Its modelled annual emissions are 244,600 t CO₂/yr (Climate TRACE), equivalent to about 57k cars driven for a year. 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-5280.

Data provenance

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

capacity: Climate TRACE; fuel: Not available

In context: how this plant compares

At 132.5 MW, Marusumi Paper Ohe Mill power station is around 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.

~244,600 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.

Key facts

Share of Japan other capacity

4.4% 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 Marusumi Paper Co Ltd.

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 0% above 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: 50/100 — 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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), 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 #7 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

• Mishima Mill (Taio) · Oil · 500 MW · Ehime
• Daio Mishima Mill power station · Coal · 356 MW ·
• Mitoyo Solar Power Plant · Solar · 2 MW · Kagawa
• Niihama Kita thermal power station · Gas · 150 MW · Ehime
• Niihama Nishi power station · Coal · 300 MW · Ehime
• Funayaotsu · Solar · 14 MW · Ehime

Location

Coordinates 34.0057, 133.557 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions