Mount Holly aluminium plant — United States
Aluminium Smelter in United States. Approximate location 33.04911, -80.05421.
Aluminium SmelterUnited StatesCO₂ estimate (modelled)
Mount Holly aluminium plant is an aluminium smelter in United States. Its listed capacity is 184,000 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. By capacity it ranks #5 among 8 aluminium smelters in United States. It emits about 391,025 t CO₂e a year from Climate TRACE. That is 0.07% of the CO₂e from the 1,910 facilities in United States that have an emissions figure in IndustryAtlas.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3673147.
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
- Henan Xi'an aluminium plant · 387,223 t CO₂e/yr · China
- New Madrid aluminium plant · 397,401 t CO₂e/yr · United States
- Yangquan, Shanxi aluminium plant · 401,835 t CO₂e/yr · China
- Saint James Parish · 377,316 t CO₂e/yr · United States
- Birac Zvornik Alumina Factory · 406,922 t CO₂e/yr · Bosnia and Herzegovina
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Berkeley County Landfill · Waste · 3 MW · 8 km
- Williams · Coal · 714 MW · 12 km
- Bushy Park Combustion Turbine Facility · Gas · 65 MW · 12 km
- Williams Station · Coal · 633 MW · 12 km
- Kapstone · Waste · 99 MW · 18 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
At 184,000 t of alumina/aluminum, Mount Holly aluminium plant is around the median aluminium smelter in United States (187,000 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 391,025 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 391k t CO₂e/yr (Scope 1), Mount Holly aluminium plant carries no domestic carbon price — and as a CBAM-covered product, its 391k t at the EU CBAM rate (€75/t) is €29.5M/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 United States
Listed capacity (t of alumina/aluminum), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Local climate
Mount Holly aluminium plant sits in a humid subtropical climate zone (Köppen Cfa), at 33.0°N in the northern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1320 W/m² to ambient — roughly 1.01× 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 #5 largest of 8 aluminium smelters in United States by listed capacity (Climate TRACE).
Nearby industrial sites
- DAK AMERICAS LLC · Other Manufacturing · 77,289 t CO₂
- Lauscha Fiber International · Other Manufacturing · 33,479 t CO₂
- Lauscha Fiber International · Metals Plant · 2,142 t CO₂
- Nucor Steel Berkeley plant · Steel Plant · 1,050,843 t CO₂
- Winningham'S Meats · Food & Beverage
- INEOS US Chemicals Company CR Plant · Chemical Plant · 121,890 t CO₂
Location
Coordinates 33.04911, -80.05421. View on OpenStreetMap.
Frequently asked questions
What type of facility is Mount Holly aluminium plant?
Mount Holly aluminium plant is a aluminium smelter in United States. 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 Mount Holly aluminium plant?
The open dataset lists 184,000 t of alumina/aluminum of capacity for Mount Holly aluminium plant.
How much CO₂ does Mount Holly aluminium plant emit?
The page uses about 391,025 t CO₂e/year from the open dataset It ranks #304 among facilities in United States by estimated CO₂.
Where is Mount Holly aluminium plant located?
Mount Holly aluminium plant is in United States at approximately 33.04911, -80.05421.