EPA GHGRP · reporting year 2023 · Metals
Century Aluminum - top-third GHGRP parent
According to the EPA's Greenhouse Gas Reporting Program (GHGRP), an upper-third Scope 1 reporter: 3 facilities across 2 states (986K MT CO₂e in 2023).
- MT CO₂e (latest facility reports)
- 986K
- Reporting facilities
- 3
- States covered
- 2
- Overall rank
- #341
Data updated May 2026
According to the EPA GHGRP, Century Aluminum reported 986K MT CO₂e in 2023 across 3 facilities in 2 states (ranks #341 of 2,289 U.S. corporate GHG emitters by total reported CO₂e) Emissions decreased 62% over the tracked period.
- Overall rank #341 of 2,289
- #8 in Metals
- -62.1% since 2011
Century Aluminum vs all U.S. GHGRP parent companies
Where this parent's reported Scope 1 CO₂e sits among every EPA GHGRP-reporting company
985,925 341st of 2289 higher than 1,948 of 2,289 companies
GHGRP parent companies, banded by reported CO₂e (MT)
Each bar is a band; taller bars hold more companies. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
How Century Aluminum spreads its footprint vs Metals peers
Facility count against total reported CO₂e for 20 Metals companies. A company can lead its sector from one concentrated site or from many smaller ones; the split below uses the median of this peer group (4 facilities, 0.84M MT).
You are here: Century Aluminum.
Metals peer footprint table: Century Aluminum, 3 facilities, 0.99M MT CO2e. Cleveland-Cliffs, 26 facilities, 27.37M MT CO2e. US Steel, 13 facilities, 19.41M MT CO2e. Nucor, 24 facilities, 5.57M MT CO2e. Alcoa, 3 facilities, 5.16M MT CO2e. Suncoke Energy, 5 facilities, 3.27M MT CO2e. Steel Dynamics, 10 facilities, 2.54M MT CO2e. Globe Specialty Metals, 4 facilities, 0.92M MT CO2e. Commercial Metals, 8 facilities, 0.86M MT CO2e. Gerdau USA, 9 facilities, 0.84M MT CO2e. Gramercy Holdings I, 1 facilities, 0.8M MT CO2e. Ssab US Holding, 2 facilities, 0.63M MT CO2e. Novelis, 6 facilities, 0.63M MT CO2e. Arconic, 4 facilities, 0.63M MT CO2e. Arcelormittal Holdings, 2 facilities, 0.62M MT CO2e. Am/ns Calvert, 1 facilities, 0.56M MT CO2e. Bluescope Steel Investments, 1 facilities, 0.44M MT CO2e. Pinnacle Mountain Holding Co III, 1 facilities, 0.38M MT CO2e. Proterial America, 2 facilities, 0.38M MT CO2e. Magnitude 7 Metals, 1 facilities, 0.38M MT CO2e.
EPA GHGRP inventory plate
Parent century-aluminum · 2023 #341 · 986K MT
CO2E-MODEST · UPPER-Q · PHOTO-FINISH · FAC-PAIR · SPAN-PAIR · SECTOR-METALS · TREND-CUT · BOOK-RICH
- CO2E-MODEST 986K MT
- UPPER-Q #341/2289
- PHOTO-FINISH WattBridge Texas · Power Plants
- FAC-PAIR 3 facilities
- SPAN-PAIR 2 states
- SECTOR-METALS Metals
- TREND-CUT −62% since 2011
- BOOK-RICH 7/8 fields
Nearest CO₂e peer: WattBridge Texas · Power Plants (±2K MT)
Upper-third parent rollup stamps: CO₂e band, corpus rank, peer, facility book, state span, sector, trend. Not an EPA grade.
2023 nearly all-CO₂ parent book
This parent's 2023 facility book is almost entirely CO₂ (73.3% of 986K MT CO₂e). CH₄ and N₂O together are only 0%, a CO₂-shaped GHGRP profile, not a methane story. Component shares sum this parent's facility CO₂ / CH₄ / N₂O rows for that year, not a corporate Scope 1-3 inventory.
- CO₂
- 73.3%
- 723K MT
- CH₄
- 0%
- 50 MT
- N₂O
- 0%
- 59 MT
CO₂e neighbourhood around Century Aluminum
Lowest and highest poles plus nearest reported parents by CO₂e, not a full GHGRP corpus board reprint.
Largest sites in a top-third parent book
Century Aluminum - top sites (MT CO₂e)
Century Aluminum's largest facilities by latest available reported CO₂e
Emissions decline across reporting years
Century Aluminum - declining annual GHG
EPA GHGRP 2011–2023 · million metric tons CO₂e
- Reported CO₂e in 2023
- 986K MT
- 13 annual EPA GHGRP reporting records
Century Aluminum annual reported GHG emissions, 2011–2023
Century Aluminum reported 986K MT CO₂e in 2023, compared with 2.6M MT in 2011 - a decline of 62.1% across the EPA GHGRP reporting record.
Multi-site facilities (3)
| Facility | Location | Emissions (MT CO2e) |
|---|---|---|
| Century Aluminum Sebree LLC Metals Robards, KY | Robards, KY | 564K |
| Century Aluminum of South Carolina, Inc. Metals GOOSE CREEK, SC | GOOSE CREEK, SC | 422K |
| CENTURY ALUMINUM OF KENTUCKY Metals HAWESVILLE, KY | HAWESVILLE, KY | 1 |
Where Century Aluminum's reported CO₂e sits by state
57.2% of this parent's latest facility CO₂e is in Kentucky (2 sites) ; next is South Carolina at 42.8% . Shares are GHGRP facility rollups for this parent, not state economy totals.
Century Aluminum reported facility CO₂e concentration by U.S. state
Nationwide peers for a top-third GHGRP parent
Three EPA GHGRP peer sets for a top-third parent (986K MT): nearest totals, facility-book size, then per-facility intensity.
Similar reported CO₂e
Nearest parent totals (986K MT here).
Similar facility book
Nearest reporting-facility counts (3 here).
Similar per-facility CO₂e
Nearest average MT per facility (329K MT here).
Source: EPA GHGRP Data is based on facility self-reporting. Not environmental compliance advice
What to do with this
Using Century Aluminum's emissions profile
- Century Aluminum runs high-intensity per facility (329K MT CO₂e/site); see how it stacks up against the rest of the Metals sector on the Metals industry page.
- It ranks #341 of 2,289 reporting parents nationwide, compare it directly against specific peers on the compare tool.
- Not sure how to read a total-CO₂e figure or a per-facility intensity number, the how-to-read guide walks through what each field means and what it doesn't.
Related reading: How to read an emissions profile · Metals emitters · Methodology
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP). Consult a qualified professional before making decisions based on this data.