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Dah-Tarn

Gas power plant in Taiwan, Taiwan. Approximate location 25.027, 121.048.

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Dah-Tarn is a 4,380 MW gas power station in Taiwan, Taiwan. It is operated by Taiwan Power Company (Taipower). Based on its capacity (estimated), it can supply roughly 4,933,131 homes (estimated). It ranks #2 of 39 Taiwan power plants by installed capacity. In context, gas supplies about 48.8% of Taiwan's electricity; the national grid averages 633 gCO₂/kWh (13.4% low-carbon) (2025).

4,380MW installed capacity
4,933,131homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000370.

~6,906,384 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

1,609,880passenger cars driven for a year
900,676homes' yearly energy use
115,106,400tree seedlings grown 10 years to absorb it

Estimated, not measured: from installed capacity at a typical 45% load factor × a typical gas emission factor (~400 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.

Capacity vs largest gas plants in Taiwan

Dah-Tarn: 4,380 MW4kDah-TarnHsinta (gas): 2,410 MW2kHsinta (ga…Tunghsiao: 1,785 MW2kTunghsiaoNanpu (NG): 800 MW800Nanpu (NG)Chiahui: 670 MW670ChiahuiTalin: 550 MW550TalinStar Buck: 490 MW490Star BuckLinkou: 300 MW300Linkou

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

Owner

Operated by Taiwan Power Company (Taipower).

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 25.0°N — which shapes how much energy it can produce and how its output varies through the year.

21.1°Cannual mean temp
342heating degree-days (base 18°C)
1,483cooling degree-days (base 18°C)
115 melevation

Monthly mean temperature

J: 14 °CJF: 14 °CFM: 16 °CMA: 20 °CAM: 23 °CMJ: 26 °CJJ: 28 °CJA: 27 °CAS: 26 °CSO: 23 °CON: 19 °CND: 16 °CD28 °C

Heating degree-days here run 86% 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: 19/100 — this site sits in the bottom 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 ~4% 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 #1 largest gas power plant of 9 in Taiwan by capacity.

Taiwan has 9 gas power plants in this dataset, together about 11,673 MW of capacity.

Nearby power plants

Location

Coordinates 25.027, 121.048 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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