Alumar

Coal power plant in Maranhao, Brazil. Approximate location -2.7028, -44.3415.

CoalMaranhaoBrazil

Alumar is a 75 MW coal power plant in Maranhao, Brazil. It is operated by Consorcio Alumar. Based on its capacity (estimated), it can supply roughly 94,107 homes (estimated). It ranks #316 of 2,549 Brazil power plants by installed capacity. Commissioned in 2009, it is around 17 years old — relatively modern. In context, coal supplies about 2.3% of Brazil's electricity; the national grid averages 110 gCO₂/kWh (88.7% low-carbon) (2025).

75MW installed capacity
94,107homes powered (est.)
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id BRA0029591.

~329,376 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

76,778passenger cars driven for a year
42,955homes' yearly energy use
5,489,600tree seedlings grown 10 years to absorb it

Estimated, not measured: from installed capacity at a typical 50% load factor × a typical coal emission factor (~1000 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.

Capacity vs largest coal plants in Brazil

Presidente Médici A B: 446 MW446Presidente…Porto do Pecém II: 365 MW365Porto do P…Jorge Lacerda IV: 363 MW363Jorge Lace…Porto do Itaqui (Antiga Termomaranhão): 360 MW360Porto do I…Candiota III: 350 MW350Candiota I…Pampa Sul power station: 345 MW345Pampa Sul …Jorge Lacerda III: 262 MW262Jorge Lace…Jorge Lacerda I e II: 232 MW232Jorge Lace…

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

Owner

Operated by Consorcio Alumar.

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical savanna climate (Köppen Aw) — Southern Hemisphere, latitude 2.7°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)
3,235cooling degree-days (base 18°C)
17 melevation

Monthly mean temperature

J: 27 °CJF: 26 °CFM: 26 °CMA: 26 °CAM: 27 °CMJ: 27 °CJJ: 26 °CJA: 27 °CAS: 27 °CSO: 28 °CON: 28 °CND: 27 °CD28 °C

Heating degree-days here run 100% 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: 13/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.

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.

How it compares & nearby plants

The #11 largest coal power plant of 21 in Brazil by capacity.

Brazil has 21 coal power plants in this dataset, together about 3,138 MW of capacity.

Nearby power plants

Location

Coordinates -2.7028, -44.3415 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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