Home / South America / Brazil / Mauá 3 power station

Mauá 3 power station

Gas power plant in Amazonas, Brazil. Approximate location -3.1173, -59.9299.

GasAmazonasBrazilCCGT · HRSGCO₂ modelled

Mauá 3 power station is a 591 MW gas power station in Amazonas, Brazil. It is operated by Âmbar Energia SA. Based on its capacity (estimated), it can supply roughly 666k homes (estimated). It ranks #89 of 2,572 Brazil power plants by installed capacity. Commissioned in 2017, it is around 9 years old — relatively modern. Its modelled annual emissions are 2,174,400 t CO₂/yr (Climate TRACE), equivalent to about 507k 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).

591Source-backed capacity
1HRSG unit(s)
665,634homes powered (est.)
2,174,400t CO₂ / yr (Climate TRACE)
2017commissioned (~9 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5507.

Data status

Known data

FacilityMauá 3 power station Climate TRACE
CountryBrazil · Amazonas Climate TRACE
Coordinates-3.1173, -59.9299 Climate TRACE
FuelGas Climate TRACE
MW installed capacity591 MW Climate TRACE source record; scope not independently normalised
OwnerÂmbar Energia SA Climate TRACE
Commissioned2017 Climate TRACE
TechnologyCCGT · HRSG Climate TRACE

Modelled source data

CO₂ emissions2,174,400 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#89 of 2572 calculated
Fuel-specific rank in country#43 of 195 calculated
Capacity vs country/fuel peers5.90× · 100 MW median · 195 peers calculated
Homes-powered equivalent665,634 calculated
Climate26.9°C · HDD 0 derived from coordinates
Environmental severityC3 · 35/100 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.

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 operating-unit sum (location L100000406511); fuel: Climate TRACE source-record fuel

In context: how this plant compares

At 591 MW, Mauá 3 power station is well above the median gas plant in Brazil (100 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.

~2,174,400 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

507kpassenger cars driven for a year
284khomes' yearly energy use
36 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 Âmbar Energia SA. All plants by this company →

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 monsoon climate (Köppen Am) — Southern Hemisphere, latitude 3.1°S — which shapes how much energy it can produce and how its output varies through the year.

26.9°Cannual mean temp
0heating degree-days (base 18°C)
3,241cooling degree-days (base 18°C)
15 melevation

Monthly mean temperature

J: 26 °CJF: 26 °CFM: 26 °CMA: 26 °CAM: 27 °CMJ: 27 °CJJ: 27 °CJA: 27 °CAS: 28 °CSO: 28 °CON: 28 °CND: 27 °CD28 °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 ~8% 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)
35/100environmental-severity index
1.4°Cseasonal temperature swing
1222 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 #43 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 -3.1173, -59.9299 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Mauá 3 power station?

Mauá 3 power station is a 591 MW source-record gas power plant in Amazonas, Brazil, commissioned in 2017.

How many homes can Mauá 3 power station power?

Its output is enough to supply roughly 665,634 homes (estimated).

Who operates Mauá 3 power station?

Mauá 3 power station is operated by Âmbar Energia SA.

How much CO₂ does Mauá 3 power station emit?

Mauá 3 power station has modelled emissions of about 2,174,400 tonnes of CO₂ per year (Climate TRACE).

Built from open public data; no personal information. Operate this site? Request a correction or removal.