Seohae Cogenerator power station — South Korea

Seohae Cogenerator power station is a 25 MW biomass power plant in Chungcheongnam-do, South Korea. It is operated by Seohae Combined Heat and Power Cogenerator Ltd. Based on its capacity (estimated), it can supply roughly 34k homes (estimated). It ranks #162 of 216 South Korea power plants by installed capacity. In context, biomass supplies about 3.2% 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-5492.

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: Climate TRACE; fuel: Climate TRACE

In context: how this plant compares

At 25 MW, Seohae Cogenerator power station is well above the median biomass plant in South Korea (22 MW). Biomass plants burn organic material such as wood, residues or waste-derived fuel to raise steam; they are dispatchable and counted as low-carbon where the feedstock is sustainably sourced.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Share of South Korea biomass capacity

3.0% of 844 MW across 21 plants in this dataset

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

Capacity vs largest biomass plants in South Korea

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

Owner

Operated by Seohae Combined Heat and Power Cogenerator Ltd.

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 36.8°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 19% 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: 60/100 — 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 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 #10 largest biomass power plant of 21 in South Korea by capacity.

South Korea has 21 biomass power plants in this dataset, together about 844 MW of capacity.

Nearby power plants

• Taean · Solar · 2 MW · Chungcheongnam-do
• LG Solar Taean PV · Solar · 12 MW · Chungcheongnam-do
• Taean · Coal · 5,946 MW · Chungcheongnam-do
• Naepo Green Energy power station · Gas · 500 MW · Chungcheongnam-do
• Daesan Refinery power station · Gas · 174.1 MW · Chungcheongnam-do
• Daesan power station · Biomass · 110 MW · Chungcheongnam-do

Location

Coordinates 36.7832, 126.4514 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions