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Kawasaki

Gas power plant in Kanagawa, Japan. Approximate location 35.5123, 139.7626.

GasKanagawaJapanCCGT · HRSG

Kawasaki is a 1,500 MW gas power station in Kanagawa, Japan. It is operated by Tokyo. Based on its capacity (estimated), it can supply roughly 1.7 million homes (estimated). It ranks #57 of 692 Japan power plants by installed capacity. Commissioned in 2007, it is around 19 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).

1,500Source-backed capacity
6HRSG unit(s)
1,689,428homes powered (est.)
2007commissioned (~19 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000631.

Data status

Known data

FacilityKawasaki WRI
CountryJapan · Kanagawa WRI
Coordinates35.5123, 139.7626 WRI
FuelGas WRI
MW installed capacity1,500 MW WRI source record; scope not independently normalised
OwnerTokyo WRI
Commissioned2007 WRI
TechnologyCCGT · HRSG WRI

Calculated from dataset

CO₂ emissions2,365,200 t CO₂/yr calculated
Capacity rank in country#57 of 692 calculated
Fuel-specific rank in country#18 of 66 calculated
Capacity vs country/fuel peers1.77× · 847 MW median · 66 peers calculated
Homes-powered equivalent1,689,428 calculated
Climate15.5°C · HDD 1,633 derived from coordinates
Environmental severityC4 · 45/100 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.

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 1,500 MW, Kawasaki is well above the median gas plant in Japan (847 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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 Tokyo. All plants by this company →

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 #18 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 35.5123, 139.7626 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kawasaki?

Kawasaki is a 1,500 MW source-record gas power plant in Kanagawa, Japan, commissioned in 2007.

How many homes can Kawasaki power?

Its output is enough to supply roughly 1,689,428 homes (estimated).

Who operates Kawasaki?

Kawasaki is operated by Tokyo.

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