Hallim Complex power station — South Korea
Gas power plant in Jeju-do, South Korea. Approximate location 33.4028, 126.2723.
GasJeju-doSouth KoreaCCGT · HRSGCO₂ modelled
Hallim Complex power station is a 105 MW gas power station in Jeju-do, South Korea. It is operated by Korea Southern Power Co Ltd. Based on its capacity (estimated), it can supply roughly 118k homes (estimated). It ranks #130 of 216 South Korea power plants by installed capacity. Commissioned in 1997, it is around 29 years old — long-established. Its modelled annual emissions are 135,840 t CO₂/yr (Climate TRACE), equivalent to about 32k 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5477.
Data status
Known data
Modelled source data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000408494; fuel: Climate TRACE
In context: how this plant compares
At 105 MW, Hallim Complex power station is below 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.
~135,840 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 gas capacity
- 0.2% of 58,006 MW across 77 plants in this dataset
- Age among peers
- 4 of 67 dated gas 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 gas plants in South Korea
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Korea Southern Power Co Ltd. 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 33.4°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 20% 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: 43/100 — 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
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness 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 #75 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
- Jeju Offshore · Wind · 30 MW · Jeju-do
- Hangyeong · Wind · 21 MW · Jeju-do
- Namjeju Power Complex · Gas · 487.7 MW · Jeju-do
- Jeju · Oil · 228 MW · Jeju-do
- Bukeju · Coal · 150 MW · Jeju-do
- Jeju Self Governing Wind Farm · Wind · 15 MW · Jeju-do
Location
Coordinates 33.4028, 126.2723 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Hallim Complex power station?
Hallim Complex power station is a 105 MW gas power plant in Jeju-do, South Korea, commissioned in 1997.
Who operates Hallim Complex power station?
Hallim Complex power station is operated by Korea Southern Power Co Ltd.
How much CO₂ does Hallim Complex power station emit?
Hallim Complex power station has modelled emissions of about 135,840 tonnes of CO₂ per year (Climate TRACE).