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Tokai Kyodo power station

Coal power plant in Aichi, Japan. Approximate location 35.0273, 136.8659.

CoalAichiJapansubcritical

Tokai Kyodo power station is a 149 MW coal power station in Aichi, Japan. It is operated by Tokai Kyodo Electric Power Co. Based on its capacity (estimated), it can supply roughly 186k homes (estimated). It ranks #215 of 692 Japan power plants by installed capacity. Commissioned in 1990, it is around 36 years old — long-established. In context, coal supplies about 32.1% of Japan's electricity; the national grid averages 477 gCO₂/kWh (32.7% low-carbon) (2025).

149Source-backed capacity
186,462homes powered (est.)
1990commissioned (~36 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5241.

Data status

Known data

FacilityTokai Kyodo power station Climate TRACE
CountryJapan · Aichi Climate TRACE
Coordinates35.0273, 136.8659 Climate TRACE
FuelCoal Climate TRACE
MW installed capacity149 MW Climate TRACE source record; scope not independently normalised
OwnerTokai Kyodo Electric Power Co Climate TRACE
Commissioned1990 Climate TRACE
Technologysubcritical Climate TRACE

Calculated from dataset

CO₂ emissions652,620 t CO₂/yr calculated
Capacity rank in country#215 of 692 calculated
Fuel-specific rank in country#57 of 94 calculated
Capacity vs country/fuel peers0.60× · 250 MW median · 94 peers calculated
Homes-powered equivalent186,462 calculated
Climate15.5°C · HDD 1,713 derived from coordinates
Environmental severityC4 · 46/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000102874); fuel: Climate TRACE source-record fuel

In context: how this plant compares

At 149 MW, Tokai Kyodo power station is below the median coal plant in Japan (250 MW). Technically it is described as subcritical. 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.

Capacity vs largest coal plants in Japan

Hekinan power station: 4,100 MW4kHekinan po…J-POWER Tachibana-wan power station: 2,100 MW2kJ-POWER Ta…Haramachi power station: 2,000 MW2kHaramachi …Hitachinaka power station: 2,000 MW2kHitachinak…Matsuura power station: 2,000 MW2kMatsuura p…Shinchi power station: 2,000 MW2kShinchi po…Nakoso power station: 1,975 MW2kNakoso pow…Maizuru power station: 1,800 MW2kMaizuru po…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Tokai Kyodo Electric Power Co.

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 35.0°N — which shapes how much energy it can produce and how its output varies through the year.

15.5°Cannual mean temp
1,713heating degree-days (base 18°C)
822cooling degree-days (base 18°C)
20 melevation

Monthly mean temperature

J: 5 °CJF: 5 °CFM: 8 °CMA: 14 °CAM: 18 °CMJ: 22 °CJJ: 26 °CJA: 27 °CAS: 24 °CSO: 18 °CON: 12 °CND: 7 °CD27 °C

Heating degree-days here run 30% 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: 38/100 — 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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
46/100environmental-severity index
22.3°Cseasonal temperature swing
45 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #57 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

Location

Coordinates 35.0273, 136.8659 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Tokai Kyodo power station?

Tokai Kyodo power station is a 149 MW source-record coal power plant in Aichi, Japan, commissioned in 1990.

How many homes can Tokai Kyodo power station power?

Its output is enough to supply roughly 186,462 homes (estimated).

Who operates Tokai Kyodo power station?

Tokai Kyodo power station is operated by Tokai Kyodo Electric Power Co.

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