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Changgong power station

Coal power plant in Changhua, Taiwan. Approximate location 24.089, 120.406.

CoalChanghuaTaiwanultra-supercritical

Changgong power station is a 1,600 MW coal power station in Changhua, Taiwan. It is operated by Taiwan Power Co [100%]. Based on its capacity (estimated), it can supply roughly 2.0 million homes (estimated). It ranks #15 of 60 Taiwan power plants by installed capacity. In context, coal supplies about 36.3% of Taiwan's electricity; the national grid averages 633 gCO₂/kWh (13.4% low-carbon) (2025).

1,600MW installed capacity
2,002,285homes powered (est.)

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

Data status

Known data

FacilityChanggong power station GEM-coal
CountryTaiwan · Changhua GEM-coal
Coordinates24.089, 120.406 GEM-coal
FuelCoal GEM-coal
MW installed capacity1,600 MW GEM GCPT; source record
OwnerTaiwan Power Co [100%] GEM-coal
Technologyultra-supercritical GEM-coal

Calculated from dataset

CO₂ emissions7,008,000 t CO₂·a⁻¹ calculated
Capacity rank in country#15 / 60 calculated
Fuel-specific rank in country#5 / 19 calculated
Capacity vs country/fuel peers4.94× · 324 MW · n=19 calculated
Homes-powered equivalent2,002,285 calculated
Climate22.4°C · HDD 158 derived from coordinates
Environmental severityC5 · 48/100 derived from coordinates

Not available

CommissionedNot available not in dataset
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 fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 1,600 MW, Changgong power station is well above the median coal plant in Taiwan (324 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.

Capacity vs largest coal plants in Taiwan

Taipei Port power station: 6,000 MW6kTaipei Por…Taizhong Taichung: 5,780 MW6kTaizhong T…Mailao: 4,200 MW4kMailaoHsinta (coal): 3,526 MW4kHsinta (co…Changgong power station: 1,600 MW2kChanggong …Shen'ao power station: 1,600 MW2kShen'ao po…Ho-Ping power station: 1,320 MW1kHo-Ping po…Jenwu Plant: 362 MW362Jenwu Plant

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

Owner

Operated by Taiwan Power Co [100%].

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 24.1°N — which shapes how much energy it can produce and how its output varies through the year.

22.4°Cannual mean temp
158heating degree-days (base 18°C)
1,763cooling degree-days (base 18°C)
7 melevation

Monthly mean temperature

J: 15 °CJF: 16 °CFM: 18 °CMA: 22 °CAM: 25 °CMJ: 27 °CJJ: 28 °CJA: 28 °CAS: 27 °CSO: 24 °CON: 21 °CND: 17 °CD28 °C

Heating degree-days here run 94% 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: 16/100 — this site sits in the bottom 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

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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
48/100environmental-severity index
12.8°Cseasonal temperature swing
21 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 #5 largest coal power plant of 19 in Taiwan by capacity.

Taiwan has 19 coal power plants in this dataset, together about 26,070 MW of capacity.

Nearby power plants

Location

Coordinates 24.089, 120.406 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Changgong power station?

Changgong power station is a 1,600 MW coal power plant in Changhua, Taiwan.

How many homes can Changgong power station power?

Its output is enough to supply roughly 2,002,285 homes (estimated).

Who operates Changgong power station?

Changgong power station is operated by Taiwan Power Co [100%].

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