Nakagusuku power station is a 49 MW biomass power plant in Okinawa, Japan. It is operated by Okinawa Uruma New Energy KK. Based on its capacity (estimated), it can supply roughly 67k homes (estimated). It ranks #328 of 692 Japan power plants by installed capacity. In context, biomass supplies about 5.3% 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 CT-5364.
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
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: Climate TRACE; fuel: Climate TRACE
In context: how this plant compares
At 49 MW, Nakagusuku power station is around the median biomass plant in Japan (50 MW). Biomass plants burn organic material such as wood, residues or waste-derived fuel to raise steam; they are dispatchable and counted as low-carbon where the feedstock is sustainably sourced.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Japan biomass capacity
- 1.9% of 2,518 MW across 52 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 biomass plants in Japan
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Okinawa Uruma New Energy KK.
Local climate & thermal context
This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 26.3°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 97% 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: 14/100 — this site sits in the bottom 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion 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 #30 largest biomass power plant of 52 in Japan by capacity.
Japan has 52 biomass power plants in this dataset, together about 2,518 MW of capacity.
Nearby power plants
- Gushikawa power station · Coal · 312 MW · Okinawa
- Yoshinoura thermal power plant · Gas · 502 MW · Okinawa
- Uruma · Solar · 12 MW · Okinawa
- Ishikawa Uruma power station · Oil · 353 MW · Uruma
- Ishikawa power station · Coal · 312 MW · Okinawa
- Kin power station · Coal · 440 MW · Okinawa
Location
Coordinates 26.3296, 127.8672 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Nakagusuku power station?
Nakagusuku power station is a 49 MW biomass power plant in Okinawa, Japan.
Who operates Nakagusuku power station?
Nakagusuku power station is operated by Okinawa Uruma New Energy KK.