Onbetsu power station is a 148 MW oil power station in Kushiro, Japan. It is operated by Hokkaido Electric Power Co Inc [100%]. Based on its capacity (estimated), it can supply roughly 111k homes (estimated). It ranks #217 of 692 Japan power plants by installed capacity. Commissioned in 1978, it is around 48 years old — long-established. In context, oil supplies about 2.5% 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 GOGPT_onbetsu_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 · 2026 · L100000408482; fuel: GEM GOGPT
In context: how this plant compares
At 148 MW, Onbetsu power station is below the median oil plant in Japan (1,000 MW). Technically it is described as OCGT. Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Japan oil capacity
- 0.3% of 48,987 MW across 41 plants in this dataset
- Age among peers
- 11 of 28 dated oil plants in Japan are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest oil plants in Japan
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Hokkaido Electric Power Co Inc [100%].
Climate zone & how it works
This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 42.9°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with thermal cycling 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 #36 largest oil power plant of 41 in Japan by capacity.
Japan has 41 oil power plants in this dataset, together about 48,987 MW of capacity.
Nearby power plants
- Onbetsu Solar Power Plant · Solar · 20 MW · Hokkaido
- Shiranuka Solar Power Plant · Solar · 30 MW · Hokkaido
- Kushiro - Tsuruno Solar Power Plant · Solar · 21.7 MW · Hokkaido
- Kushiro - Hoshigaura Solar Power Plant · Solar · 1.5 MW · Hokkaido
- Kushiro Mill Npi power station · Coal · 145 MW · Hokkaidō
- Toyokoro Solar Power Plant · Solar · 27.4 MW · Hokkaido
Location
Coordinates 42.898342, 143.938964 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Onbetsu power station?
Onbetsu power station is a 148 MW oil power plant in Kushiro, Japan, commissioned in 1978.
Who operates Onbetsu power station?
Onbetsu power station is operated by Hokkaido Electric Power Co Inc [100%].