Alunorte — Brazil

Alunorte is a 103.9 MW coal power station in Para, Brazil. It is operated by Alumina do Norte do Brasil SA. Based on its capacity (estimated), it can supply roughly 130k homes (estimated). It ranks #304 of 2,572 Brazil power plants by installed capacity. Commissioned in 2007, it is around 19 years old — relatively modern. Its modelled annual emissions are 601,570 t CO₂/yr (Climate TRACE), equivalent to about 140k cars driven for a year. In context, coal supplies about 2.3% 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 BRA0028916.

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: WRI GPPD; fuel: WRI GPPD

In context: how this plant compares

At 103.9 MW, Alunorte is below the median coal plant in Brazil (262 MW). Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

~601,570 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Key facts

Share of Brazil coal capacity

1.1% of 9,486 MW across 30 plants in this dataset

Age among peers

11 of 22 dated coal plants in Brazil are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest coal plants in Brazil

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

Owner

Operated by Alumina do Norte do Brasil SA.

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical rainforest climate (Köppen Af) — Southern Hemisphere, latitude 1.5°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.

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

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

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 #18 largest coal power plant of 30 in Brazil by capacity.

Brazil has 30 coal power plants in this dataset, together about 9,486 MW of capacity.

Nearby power plants

• Novo Tempo Barcarena III power station · Gas · 421.4 MW · Pará
• Novo Tempo Barcarena power station · Gas · 624 MW · Pará
• Vila do Conde power station · Gas · 2,310 MW · Pará
• Portocém power station · Gas · 1,576 MW · Pará
• Barcarena Alunorte power station · Coal · 104 MW · Pará
• Barcarena Vale power station · Coal · 600 MW · Pará

Location

Coordinates -1.5374, -48.723 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions