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Kawasaki Natural Gas power station

Gas power plant in Kanagawa, Japan. Approximate location 35.4988, 139.7251.

GasKanagawaJapanCCGT · HRSGCO₂ modelled

Kawasaki Natural Gas power station is a 847 MW gas power station in Kanagawa, Japan. It is operated by Kawasaki Natural Gas Power Generation Co Ltd. Based on its capacity (estimated), it can supply roughly 954k homes (estimated). It ranks #115 of 692 Japan power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. Its modelled annual emissions are 1,124,450 t CO₂/yr (Climate TRACE), equivalent to about 262k cars driven for a year. In context, gas supplies about 32.8% of Japan's electricity; the national grid averages 477 gCO₂/kWh (32.7% low-carbon) (2025).

847Source-backed capacity
2HRSG unit(s)
954,414homes powered (est.)
1,124,450t CO₂ / yr (Climate TRACE)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5231.

Data status

Known data

FacilityKawasaki Natural Gas power station Climate TRACE
CountryJapan · Kanagawa Climate TRACE
Coordinates35.4988, 139.7251 Climate TRACE
FuelGas Climate TRACE
MW installed capacity847 MW Climate TRACE source record; scope not independently normalised
OwnerKawasaki Natural Gas Power Generation Co Ltd Climate TRACE
Commissioned2008 Climate TRACE
TechnologyCCGT · HRSG Climate TRACE

Modelled source data

CO₂ emissions1,124,450 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#115 of 692 calculated
Fuel-specific rank in country#33 of 66 calculated
Capacity vs country/fuel peers1.00× · 847 MW median · 66 peers calculated
Homes-powered equivalent954,414 calculated
Climate15.8°C · HDD 1,538 derived from coordinates
Environmental severityC4 · 40/100 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 L100000405166); fuel: Climate TRACE source-record fuel

In context: how this plant compares

At 847 MW, Kawasaki Natural Gas power station is around 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.

~1,124,450 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

262kpassenger cars driven for a year
147khomes' yearly energy use
19 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

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 Generation Co Ltd.

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.

15.8°Cannual mean temp
1,538heating degree-days (base 18°C)
770cooling degree-days (base 18°C)
4 melevation

Monthly mean temperature

J: 6 °CJF: 6 °CFM: 9 °CMA: 14 °CAM: 18 °CMJ: 22 °CJJ: 25 °CJA: 27 °CAS: 23 °CSO: 18 °CON: 13 °CND: 8 °CD27 °C

Heating degree-days here run 37% 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: 35/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~1% 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)
40/100environmental-severity index
20.8°Cseasonal temperature swing
53 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 #33 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 35.4988, 139.7251 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Kawasaki Natural Gas power station?

Kawasaki Natural Gas power station is a 847 MW source-record gas power plant in Kanagawa, Japan, commissioned in 2008.

How many homes can Kawasaki Natural Gas power station power?

Its output is enough to supply roughly 954,414 homes (estimated).

Who operates Kawasaki Natural Gas power station?

Kawasaki Natural Gas power station is operated by Kawasaki Natural Gas Power Generation Co Ltd.

How much CO₂ does Kawasaki Natural Gas power station emit?

Kawasaki Natural Gas power station has modelled emissions of about 1,124,450 tonnes of CO₂ per year (Climate TRACE).

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