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Chongqing Wanzhou Cogen power station

Coal power plant in Chongqing Shi, China. Approximate location 30.7399, 108.3807.

CoalChongqing ShiChinaunknownCO₂ modelled

Chongqing Wanzhou Cogen power station is a 240 MW coal power station in Chongqing Shi, China. It is operated by Chongqing Changdian United Energy Co Ltd. Based on its capacity (estimated), it can supply roughly 300k homes (estimated). It ranks #2066 of 6,685 China power plants by installed capacity. Commissioned in 2022, it is around 4 years old — recently built. Its modelled annual emissions are 626,700 t CO₂/yr (Climate TRACE), equivalent to about 146k cars driven for a year. In context, coal supplies about 54.3% of China's electricity; the national grid averages 525 gCO₂/kWh (41.7% low-carbon) (2025).

240Source-backed capacity
300,342homes powered (est.)
626,700t CO₂ / yr (Climate TRACE)
2022commissioned (~4 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-3160.

Data status

Known data

FacilityChongqing Wanzhou Cogen power station Climate TRACE
CountryChina · Chongqing Shi Climate TRACE
Coordinates30.7399, 108.3807 Climate TRACE
FuelCoal Climate TRACE
MW installed capacity240 MW Climate TRACE source record; scope not independently normalised
OwnerChongqing Changdian United Energy Co Ltd Climate TRACE
Commissioned2022 Climate TRACE
Technologyunknown Climate TRACE

Modelled source data

CO₂ emissions626,700 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#2066 of 6685 calculated
Fuel-specific rank in country#1469 of 1907 calculated
Capacity vs country/fuel peers0.34× · 700 MW median · 1907 peers calculated
Homes-powered equivalent300,342 calculated
Climate15.7°C · HDD 1,631 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 240 MW for Chongqing Wanzhou Cogen power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A3_MAJOR_REVIEW_SCOPE_STATUS - recommended action: manual_scope_status_check - confidence: low_until_scope_verified. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 L100000104898); fuel: Climate TRACE source-record fuel

In context: how this plant compares

At 240 MW, Chongqing Wanzhou Cogen power station is below the median coal plant in China (700 MW). Technically it is described as unknown. 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.

~626,700 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

146kpassenger cars driven for a year
82khomes' yearly energy use
10 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Capacity vs largest coal plants in China

East Hope Metals Wucaiwan power station: 7,000 MW7kEast Hope …Datang Tuoketuo power station: 6,720 MW7kDatang Tuo…Togtoh power station: 6,720 MW7kTogtoh pow…Ying Long Shan power station: 6,300 MW6kYing Long …Jiaxing power station: 6,030 MW6kJiaxing po…Guazhou Changle power station: 6,000 MW6kGuazhou Ch…Guodian Yulin Jingbian power station: 6,000 MW6kGuodian Yu…Guoxin Dafeng power station: 6,000 MW6kGuoxin Daf…

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

Owner

Operated by Chongqing Changdian United Energy Co Ltd.

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 30.7°N — which shapes how much energy it can produce and how its output varies through the year.

15.7°Cannual mean temp
1,631heating degree-days (base 18°C)
820cooling degree-days (base 18°C)
707 melevation

Monthly mean temperature

J: 5 °CJF: 7 °CFM: 10 °CMA: 16 °CAM: 20 °CMJ: 23 °CJJ: 26 °CJA: 26 °CAS: 22 °CSO: 16 °CON: 11 °CND: 6 °CD26 °C

Heating degree-days here run 34% 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: 36/100 — 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

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 humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
34/100environmental-severity index
21.3°Cseasonal temperature swing
1053 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 #1469 largest coal power plant of 1907 in China by capacity.

China has 1907 coal power plants in this dataset, together about 1,882,493 MW of capacity.

Nearby power plants

Location

Coordinates 30.7399, 108.3807 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Chongqing Wanzhou Cogen power station?

Chongqing Wanzhou Cogen power station is a 240 MW source-record coal power plant in Chongqing Shi, China, commissioned in 2022.

How many homes can Chongqing Wanzhou Cogen power station power?

Its output is enough to supply roughly 300,342 homes (estimated).

Who operates Chongqing Wanzhou Cogen power station?

Chongqing Wanzhou Cogen power station is operated by Chongqing Changdian United Energy Co Ltd.

How much CO₂ does Chongqing Wanzhou Cogen power station emit?

Chongqing Wanzhou Cogen power station has modelled emissions of about 626,700 tonnes of CO₂ per year (Climate TRACE).

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