Goseong Green power station — South Korea

Goseong Green power station is a 2,080 MW coal power station in Gyeongsangnam-do, South Korea. It is operated by Goseong Green Power Co Ltd. Based on its capacity (estimated), it can supply roughly 2.6 million homes (estimated). It ranks #19 of 216 South Korea power plants by installed capacity. Commissioned in 2021, it is around 5 years old — recently built. Its modelled annual emissions are 8,197,700 t CO₂/yr (Climate TRACE), equivalent to about 1.9 million cars driven for a year. In context, coal supplies about 31.1% of South Korea's electricity; the national grid averages 417 gCO₂/kWh (40.0% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5400.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000103484; fuel: Climate TRACE

In context: how this plant compares

At 2,080 MW, Goseong Green power station is well above the median coal plant in South Korea (400 MW). Technically it is described as ultra-supercritical. 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.

~8,197,700 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

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

Key facts

Share of South Korea coal capacity

4.4% of 46,928 MW across 34 plants in this dataset

Age among peers

18 of 25 dated coal plants in South Korea are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest coal plants in South Korea

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

Owner

Operated by Goseong Green Power Co Ltd.

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 (dry winter) climate (Köppen Cwa) — Northern Hemisphere, latitude 34.9°N — which shapes how much energy it can produce and how its output varies through the year.

Monthly mean temperature

Heating degree-days here run 15% 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: 45/100 — 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

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

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 #7 largest coal power plant of 34 in South Korea by capacity.

South Korea has 34 coal power plants in this dataset, together about 46,928 MW of capacity.

Nearby power plants

• Samcheonpo · Coal · 3,240 MW · Gyeongsangnam-do
• Samchonpo power station · Gas · 2,120 MW · South Gyeongsang
• Jinju Landfill Gas · Waste · 15 MW · Gyeongsangnam-do
• Tongyeong power station · Gas · 1,000 MW · Gyeongsangnam-do
• Hadong · Coal · 4,000 MW · Jeollanam-do
• Kwangyang · Gas · 1,126 MW · Jeollanam-do

Location

Coordinates 34.9049, 128.1254 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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