Biomass power plant in Rio Grande do Sul, Brazil. Approximate location -30.1293, -51.2975.
BiomassRio Grande do SulBrazilCO₂ modelled
CMPC (Antiga Aracruz Unidade Guaíba) is a 251 MW biomass power station in Rio Grande do Sul, Brazil. It is operated by CMPC Celulose Riograndense Ltda. Based on its capacity (estimated), it can supply roughly 346k homes (estimated). It ranks #168 of 2,572 Brazil power plants by installed capacity. Commissioned in 1971, it is around 55 years old — an older, legacy facility. Its modelled annual emissions are 307 t CO₂/yr (Climate TRACE), equivalent to about 72 cars driven for a year. In context, biomass 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 BRA0030666.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
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
At 251 MW, CMPC (Antiga Aracruz Unidade Guaíba) is well above the median biomass plant in Brazil (15 MW). Biomass plants burn organic material such as wood, residues or waste-derived fuel to raise steam; they are dispatchable and counted as low-carbon where the feedstock is sustainably sourced.
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 CMPC Celulose Riograndense Ltda.
This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 30.1°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 88% 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: 18/100 — this site sits in the bottom 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.
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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness 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 #4 largest biomass power plant of 547 in Brazil by capacity.
Brazil has 547 biomass power plants in this dataset, together about 17,205 MW of capacity.
Coordinates -30.1293, -51.2975 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
CMPC (Antiga Aracruz Unidade Guaíba) is a 251 MW source-record biomass power plant in Rio Grande do Sul, Brazil, commissioned in 1971.
Its output is enough to supply roughly 345,519 homes (estimated).
CMPC (Antiga Aracruz Unidade Guaíba) is operated by CMPC Celulose Riograndense Ltda.
CMPC (Antiga Aracruz Unidade Guaíba) has modelled emissions of about 307 tonnes of CO₂ per year (Climate TRACE).
