Gas power plant in Rio de Janeiro, Brazil. Approximate location -22.3619, -41.8696.
GasRio de JaneiroBrazilCO₂ modelled
Marlim Azul power station is a 565 MW gas power station in Rio de Janeiro, Brazil. It is operated by Arke Energia SA. Based on its capacity (estimated), it can supply roughly 636k homes (estimated). It ranks #90 of 2,572 Brazil power plants by installed capacity. Commissioned in 2023, it is around 3 years old — recently built. Its modelled annual emissions are 686,230 t CO₂/yr (Climate TRACE), equivalent to about 160k 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).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id CT-5515.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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 L100000406512); fuel: Climate TRACE source-record fuel
At 565 MW, Marlim Azul 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.
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Arke Energia SA.
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 22.4°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
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.
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 extreme marine/tropical environment (estimated ISO 9223 class CX — Extreme), with marine salt corrosion the leading environmental stress.
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.
The #44 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.
Coordinates -22.3619, -41.8696 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Marlim Azul power station is a 565 MW source-record gas power plant in Rio de Janeiro, Brazil, commissioned in 2023.
Its output is enough to supply roughly 636,351 homes (estimated).
Marlim Azul power station is operated by Arke Energia SA.
Marlim Azul power station has modelled emissions of about 686,230 tonnes of CO₂ per year (Climate TRACE).
