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CST power station

Gas power plant in Espirito Santo, Brazil. Approximate location -20.2482, -40.2334.

GasEspirito SantoBrazilCO₂ modelled

CST power station is a 306 MW gas power station in Espirito Santo, Brazil. It is operated by ArcelorMittal Brasil SA. Based on its capacity (estimated), it can supply roughly 345k homes (estimated). It ranks #149 of 2,572 Brazil power plants by installed capacity. Its modelled annual emissions are 1,676,600 t CO₂/yr (Climate TRACE), equivalent to about 391k cars driven for a year. In context, gas supplies about 7.3% of Brazil's electricity; the national grid averages 110 gCO₂/kWh (88.7% low-carbon) (2025).

306Legacy source-record capacity
344,643homes powered (est.)
1,676,600t CO₂ / yr (Climate TRACE)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5509.

Data status

Known data

FacilityCST power station Climate TRACE
CountryBrazil · Espirito Santo Climate TRACE
Coordinates-20.2482, -40.2334 Climate TRACE
FuelGas Climate TRACE
MW installed capacity306 MW Climate TRACE source record; scope not independently normalised
OwnerArcelorMittal Brasil SA Climate TRACE

Modelled source data

CO₂ emissions1,676,600 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#149 of 2572 calculated
Fuel-specific rank in country#63 of 195 calculated
Capacity vs country/fuel peers3.05× · 100 MW median · 195 peers calculated
Homes-powered equivalent344,643 calculated
Climate23.5°C · HDD 0 derived from coordinates
Environmental severityC5 · 47/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot 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: Climate TRACE source-record capacity (modelled/legacy); fuel: GEM wiki operating-unit Fuel(s), dominant by operating MW >=80%, fetched 2026-07-05

In context: how this plant compares

At 306 MW, CST power station is well above the median gas plant in Brazil (100 MW). 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.

~1,676,600 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

391kpassenger cars driven for a year
219khomes' yearly energy use
28 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 Brazil

Porto Norte Fluminense power station: 3,400 MW3kPorto Nort…Porto de Sergipe power station: 2,909 MW3kPorto de S…Power Maricá power station: 2,600 MW3kPower Mari…Jandaia power station: 2,430 MW2kJandaia po…Vila do Conde power station: 2,310 MW2kVila do Co…Termopecém power station: 2,240 MW2kTermopecém…Tupã power station: 2,040 MW2kTupã power…GNA III power station: 1,927 MW2kGNA III po…

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

Owner

Operated by ArcelorMittal Brasil SA.

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 tropical savanna climate (Köppen Aw) — Southern Hemisphere, latitude 20.2°S — which shapes how much energy it can produce and how its output varies through the year.

23.5°Cannual mean temp
0heating degree-days (base 18°C)
2,016cooling degree-days (base 18°C)
35 melevation

Monthly mean temperature

J: 26 °CJF: 26 °CFM: 26 °CMA: 24 °CAM: 23 °CMJ: 21 °CJJ: 21 °CJA: 21 °CAS: 22 °CSO: 23 °CON: 24 °CND: 25 °CD26 °C

This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.

A gas turbine here also runs ~6% 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
47/100environmental-severity index
5.6°Cseasonal temperature swing
35 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 #63 largest gas power plant of 195 in Brazil by capacity.

Brazil has 195 gas power plants in this dataset, together about 74,861 MW of capacity.

Nearby power plants

Location

Coordinates -20.2482, -40.2334 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is CST power station?

CST power station is a 306 MW source-record gas power plant in Espirito Santo, Brazil.

How many homes can CST power station power?

Its output is enough to supply roughly 344,643 homes (estimated).

Who operates CST power station?

CST power station is operated by ArcelorMittal Brasil SA.

How much CO₂ does CST power station emit?

CST power station has modelled emissions of about 1,676,600 tonnes of CO₂ per year (Climate TRACE).

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