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Yeongwol

Gas power plant in Gangwon-do, South Korea. Approximate location 37.163, 128.4924.

GasGangwon-doSouth KoreaCCGT · HRSGCO₂ modelled

Yeongwol is a 848 MW gas power station in Gangwon-do, South Korea. It is operated by Korea Southern Power. Based on its capacity (estimated), it can supply roughly 955k homes (estimated). It ranks #49 of 216 South Korea power plants by installed capacity. Commissioned in 2010, it is around 16 years old — relatively modern. Its modelled annual emissions are 1,317,520 t CO₂/yr (Climate TRACE), equivalent to about 307k cars driven for a year. In context, gas supplies about 27.9% of South Korea's electricity; the national grid averages 417 gCO₂/kWh (40.0% low-carbon) (2025).

848Source-backed capacity
1HRSG unit(s)
955,090homes powered (est.)
1,317,520t CO₂ / yr (Climate TRACE)
2010commissioned (~16 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022449.

Data status

Known data

FacilityYeongwol WRI
CountrySouth Korea · Gangwon-do WRI
Coordinates37.163, 128.4924 WRI
FuelGas WRI
MW installed capacity848 MW WRI source record; scope not independently normalised
OwnerKorea Southern Power WRI
Commissioned2010 WRI
TechnologyCCGT · HRSG WRI

Modelled source data

CO₂ emissions1,317,520 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#49 of 216 calculated
Fuel-specific rank in country#25 of 77 calculated
Capacity vs country/fuel peers1.65× · 515 MW median · 77 peers calculated
Homes-powered equivalent955,090 calculated
Climate9.2°C · HDD 3,477 derived from coordinates
Environmental severityC2 · 34/100 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 L100000401405); fuel: WRI source-record fuel

In context: how this plant compares

At 848 MW, Yeongwol is well above the median gas plant in South Korea (515 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.

~1,317,520 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

307kpassenger cars driven for a year
172khomes' yearly energy use
22 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 South Korea

Incheon: 3,052 MW3kIncheonDangjin Combined Cycle power station: 2,406 MW2kDangjin Co…Samchonpo power station: 2,120 MW2kSamchonpo …KOMIPO Incheon: 1,960 MW2kKOMIPO Inc…Boryeong (CC): 1,800 MW2kBoryeong (…Busan (pusan): 1,800 MW2kBusan (pus…Seoincheon: 1,800 MW2kSeoincheonShinincheon: 1,800 MW2kShinincheon

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

Owner

Operated by Korea Southern Power. 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 monsoon hot-summer continental climate (Köppen Dwa) — Northern Hemisphere, latitude 37.2°N — which shapes how much energy it can produce and how its output varies through the year.

9.2°Cannual mean temp
3,477heating degree-days (base 18°C)
282cooling degree-days (base 18°C)
578 melevation

Monthly mean temperature

J: -5 °CJF: -3 °CFM: 2 °CMA: 10 °CAM: 15 °CMJ: 19 °CJJ: 22 °CJA: 22 °CAS: 17 °CSO: 11 °CON: 4 °CND: -3 °CD22 °C

Heating degree-days here run 41% above 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: 75/100 — this site sits in the top 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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with thermal cycling the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
34/100environmental-severity index
27.6°Cseasonal temperature swing
67 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 #25 largest gas power plant of 77 in South Korea by capacity.

South Korea has 77 gas power plants in this dataset, together about 58,006 MW of capacity.

Nearby power plants

Location

Coordinates 37.163, 128.4924 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Yeongwol?

Yeongwol is a 848 MW source-record gas power plant in Gangwon-do, South Korea, commissioned in 2010.

How many homes can Yeongwol power?

Its output is enough to supply roughly 955,090 homes (estimated).

Who operates Yeongwol?

Yeongwol is operated by Korea Southern Power.

How much CO₂ does Yeongwol emit?

Yeongwol has modelled emissions of about 1,317,520 tonnes of CO₂ per year (Climate TRACE).

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