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Wakayama

Gas power plant in Wakayama, Japan. Approximate location 34.2397, 135.128.

GasWakayamaJapanCO₂ reported

Wakayama is a 147 MW gas power station in Wakayama, Japan. It is operated by WAKAYAMA KYODO POWER CO INC. Based on its capacity (estimated), it can supply roughly 165,564 homes (estimated). It ranks #194 of 659 Japan power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. Its measured emissions of 591,380 t CO₂/yr (Climate TRACE) are equivalent to about 137,851 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).

147MW installed capacity
165,564homes powered (est.)
591,380t CO₂ / yr (Climate TRACE)
2011commissioned (~15 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1020076.

591,380 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

137,851passenger cars driven for a year
77,123homes' yearly energy use
9,856,333tree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions reported to Climate TRACE.

Capacity vs largest gas plants in Japan

Futtsu: 5,040 MW5kFuttsuHigashi Niigata: 4,810 MW5kHigashi Ni…Kawagoe: 4,802 MW5kKawagoeSodegaura: 3,600 MW4kSodegauraShin Nagoya: 3,058 MW3kShin NagoyaChiba: 2,880 MW3kChibaShin Oita: 2,295 MW2kShin OitaHigashi Ogishima: 2,000 MW2kHigashi Og…

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

Owner

Operated by WAKAYAMA KYODO POWER CO INC.

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 34.2°N — which shapes how much energy it can produce and how its output varies through the year.

14.9°Cannual mean temp
1,817heating degree-days (base 18°C)
711cooling degree-days (base 18°C)
221 melevation

Monthly mean temperature

J: 4 °CJF: 5 °CFM: 8 °CMA: 13 °CAM: 18 °CMJ: 21 °CJJ: 25 °CJA: 26 °CAS: 23 °CSO: 17 °CON: 12 °CND: 7 °CD26 °C

Heating degree-days here run 26% 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: 40/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #43 largest gas power plant of 49 in Japan by capacity.

Japan has 49 gas power plants in this dataset, together about 65,031 MW of capacity.

Nearby power plants

Location

Coordinates 34.2397, 135.128 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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