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Kawasaki CCGT

Gas power plant in Kanagawa, Japan. Approximate location 35.5121, 139.7625.

GasKanagawaJapan

Kawasaki CCGT is a 840 MW gas power station in Kanagawa, Japan. It is operated by KAWASAKI NATURAL GAS POWER GEN. Based on its capacity (estimated), it can supply roughly 946k homes (estimated). It ranks #116 of 692 Japan power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. In context, gas supplies about 32.8% of Japan's electricity; the national grid averages 477 gCO₂/kWh (32.7% low-carbon) (2025).

840Source-backed capacity
946,080homes powered (est.)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1020070.

Data status

Known data

FacilityKawasaki CCGT WRI
CountryJapan · Kanagawa WRI
Coordinates35.5121, 139.7625 WRI
FuelGas WRI
MW installed capacity840 MW WRI source record; scope not independently normalised
OwnerKAWASAKI NATURAL GAS POWER GEN WRI
Commissioned2008 WRI

Calculated from dataset

CO₂ emissions1,324,512 t CO₂/yr calculated
Capacity rank in country#116 of 692 calculated
Fuel-specific rank in country#34 of 66 calculated
Capacity vs country/fuel peers0.99× · 847 MW median · 66 peers calculated
Homes-powered equivalent946,080 calculated
Climate15.5°C · HDD 1,633 derived from coordinates
Environmental severityC4 · 45/100 derived from coordinates

Not available

TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset

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

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 3,420 MW for Kawasaki thermal power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: B_SCOPE_PARENT_COMPLEX - recommended action: build_parent_complex_model - confidence: not_comparable_without_scope. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 L100000405167); fuel: WRI source-record fuel

In context: how this plant compares

At 840 MW, Kawasaki CCGT is around the median gas plant in Japan (847 MW). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest gas plants in Japan

Futtsu: 5,334 MW5kFuttsuHigashi Niigata: 4,810 MW5kHigashi Ni…Kawagoe: 4,802 MW5kKawagoeSodegaura: 3,600 MW4kSodegauraShin Nagoya: 3,058 MW3kShin NagoyaHimeji Daini: 2,919 MW3kHimeji Dai…Chiba: 2,880 MW3kChibaShin Oita: 2,295 MW2kShin Oita

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

Owner

Operated by KAWASAKI NATURAL GAS POWER GEN.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 35.5°N — which shapes how much energy it can produce and how its output varies through the year.

15.5°Cannual mean temp
1,633heating degree-days (base 18°C)
722cooling degree-days (base 18°C)
20 melevation

Monthly mean temperature

J: 5 °CJF: 6 °CFM: 9 °CMA: 14 °CAM: 18 °CMJ: 21 °CJJ: 25 °CJA: 26 °CAS: 23 °CSO: 18 °CON: 13 °CND: 8 °CD26 °C

Heating degree-days here run 34% 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: 37/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

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)
45/100environmental-severity index
21.0°Cseasonal temperature swing
33 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 #34 largest gas power plant of 66 in Japan by capacity.

Japan has 66 gas power plants in this dataset, together about 74,949 MW of capacity.

Nearby power plants

Location

Coordinates 35.5121, 139.7625 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kawasaki CCGT?

Kawasaki CCGT is a 840 MW source-record gas power plant in Kanagawa, Japan, commissioned in 2008.

How many homes can Kawasaki CCGT power?

Its output is enough to supply roughly 946,080 homes (estimated).

Who operates Kawasaki CCGT?

Kawasaki CCGT is operated by KAWASAKI NATURAL GAS POWER GEN.

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