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Xiaoshan

Gas power plant in Zhejiang Sheng, China. Approximate location 30.05, 120.23.

GasZhejiang ShengChinaCCGT · HRSGCO₂ modelled

Xiaoshan is a 800 MW gas power station in Zhejiang Sheng, China. It is operated by Zhejiang Southeast Electric Power Co. Ltd. Based on its capacity (estimated), it can supply roughly 901k homes (estimated). It ranks #1103 of 6,685 China power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. Its modelled annual emissions are 595,220 t CO₂/yr (Climate TRACE), equivalent to about 139k cars driven for a year. In context, gas supplies about 3.2% of China's electricity; the national grid averages 525 gCO₂/kWh (41.7% low-carbon) (2025).

800Legacy source-record capacity
3HRSG unit(s)
901,028homes powered (est.)
595,220t CO₂ / yr (Climate TRACE)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061047.

Data status

Known data

FacilityXiaoshan WRI
CountryChina · Zhejiang Sheng WRI
Coordinates30.05, 120.23 WRI
FuelGas WRI
MW installed capacity800 MW WRI source record; scope not independently normalised
OwnerZhejiang Southeast Electric Power Co. Ltd WRI
Commissioned2008 WRI
TechnologyCCGT · HRSG WRI

Modelled source data

CO₂ emissions595,220 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#1103 of 6685 calculated
Fuel-specific rank in country#173 of 595 calculated
Capacity vs country/fuel peers2.82× · 284 MW median · 595 peers calculated
Homes-powered equivalent901,028 calculated
Climate16.4°C · HDD 1,617 derived from coordinates
Environmental severityC3 · 38/100 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 1,220 MW for Xiaoshan 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 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: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 800 MW, Xiaoshan is well above the median gas plant in China (284 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.

~595,220 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

139kpassenger cars driven for a year
78khomes' yearly energy use
9.9 milliontree seedlings grown 10 years to absorb it

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

Capacity vs largest gas plants in China

Datang Wushi power station: 3,900 MW4kDatang Wus…Jingneng Beihai power station: 3,200 MW3kJingneng B…Jiangsu Rudong Combined Cycle Gas Turbine power station: 3,120 MW3kJiangsu Ru…Wenzhou Dongtou power station: 3,120 MW3kWenzhou Do…Guanghai Bay power station: 2,900 MW3kGuanghai B…Chongqing Changshou power station: 2,800 MW3kChongqing …Chongqing Tongliang power station: 2,800 MW3kChongqing …Sichuan Deyang Zhongjiang power station: 2,800 MW3kSichuan De…

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

Owner

Operated by Zhejiang Southeast Electric Power Co. Ltd.

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 30.1°N — which shapes how much energy it can produce and how its output varies through the year.

16.4°Cannual mean temp
1,617heating degree-days (base 18°C)
1,040cooling degree-days (base 18°C)
72 melevation

Monthly mean temperature

J: 4 °CJF: 6 °CFM: 10 °CMA: 16 °CAM: 21 °CMJ: 24 °CJJ: 28 °CJA: 28 °CAS: 23 °CSO: 18 °CON: 12 °CND: 7 °CD28 °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.

A gas turbine here also runs ~1% 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

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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
38/100environmental-severity index
23.9°Cseasonal temperature swing
171 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 #173 largest gas power plant of 595 in China by capacity.

China has 595 gas power plants in this dataset, together about 333,508 MW of capacity.

Nearby power plants

Location

Coordinates 30.05, 120.23 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Xiaoshan?

Xiaoshan is a 800 MW source-record gas power plant in Zhejiang Sheng, China, commissioned in 2008.

How many homes can Xiaoshan power?

Its output is enough to supply roughly 901,028 homes (estimated).

Who operates Xiaoshan?

Xiaoshan is operated by Zhejiang Southeast Electric Power Co. Ltd.

How much CO₂ does Xiaoshan emit?

Xiaoshan has modelled emissions of about 595,220 tonnes of CO₂ per year (Climate TRACE).

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