Portland aluminium plant — Australia
Aluminium Smelter in Australia. Approximate location -38.38611, 141.63134.
Aluminium SmelterAustraliaCO₂ estimate (modelled)
Portland aluminium plant is an aluminium smelter in Australia. Its listed capacity is 268,000 t of alumina/aluminum. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment. It is operated by Alcoa Portland Aluminium Pty Ltd. By capacity it ranks #11 among 12 aluminium smelters in Australia. It emits about 574,610 t CO₂e a year from Climate TRACE. That is 1.3% of the CO₂e from the 30 facilities in Australia that have an emissions figure in IndustryAtlas.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3672942.
Data status
Known source data
Calculated from the dataset
Not available
Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.
Similar facilities by modelled emissions
- Gongyi City; Henan aluminium plant · 573,787 t CO₂e/yr · China
- Kuala Tanjung aluminium plant · 580,039 t CO₂e/yr · Indonesia
- Lamerd City aluminium plant · 580,039 t CO₂e/yr · Iran
- Jharsuguda District · 580,273 t CO₂e/yr · India
- Kwinana Town · 580,845 t CO₂e/yr · Australia
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Cape Sir William Grant Wind Farm · Wind · 54 MW · 2 km
- Cape Nelson North Wind Farm · Wind · 22 MW · 8 km
- Cape Nelson South Wind Farm · Wind · 44 MW · 8 km
- Cape Bridgewater Wind Farm · Wind · 58 MW · 22 km
- Codrington Wind Farm · Wind · 18 MW · 30 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
At 268,000 t of alumina/aluminum, Portland aluminium plant is below the median aluminium smelter in Australia (1,107,004 t of alumina/aluminum). Subsector: aluminum. As aluminium smelter, it requires high process heat (typically 600–900°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 574,610 t CO₂e a year looks like
This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:
Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.
Carbon cost and Scope 1 emissions
At its reported 575k t CO₂e/yr (Scope 1), Portland aluminium plant carries no domestic carbon price — and as a CBAM-covered product, its 575k t at the EU CBAM rate (€75/t) is €43.3M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).
Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.
Capacity vs largest aluminium smelters in Australia
Listed capacity (t of alumina/aluminum), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Operator
Operated by Alcoa Portland Aluminium Pty Ltd.
Local climate
Portland aluminium plant sits in a warm-summer Mediterranean climate zone (Köppen Csb), at 38.4°S in the southern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1364 W/m² to ambient — roughly 1.05× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).
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 sites
The #11 largest of 12 aluminium smelters in Australia by listed capacity (Climate TRACE).
Location
Coordinates -38.38611, 141.63134. View on OpenStreetMap.
Frequently asked questions
What type of facility is Portland aluminium plant?
Portland aluminium plant is a aluminium smelter in Australia. Aluminium smelters use large electric currents to refine alumina into molten aluminium above 900°C, and the hot metal must flow through crucibles and casting equipment.
What capacity is listed for Portland aluminium plant?
The open dataset lists 268,000 t of alumina/aluminum of capacity for Portland aluminium plant.
How much CO₂ does Portland aluminium plant emit?
The page uses about 574,610 t CO₂e/year from the open dataset It ranks #19 among facilities in Australia by estimated CO₂.
Where is Portland aluminium plant located?
Portland aluminium plant is in Australia at approximately -38.38611, 141.63134.
Who operates Portland aluminium plant?
The operator recorded in the open dataset is Alcoa Portland Aluminium Pty Ltd.